A device and method for collecting blood or other fluid from a subject

Abstract

A device for collecting blood or other liquid, comprising a housing (100), an actuating device (200), a transmission device (300) and a collecting device (400); the collecting device (400) is arranged in the housing (100); the transmission device (300) is arranged in the housing (100), the transmission device (300) comprises a locking assembly (310) and a driving assembly (320), the driving assembly (320) is connected to the collecting device (400), at least a part of the actuating device (200) is plug-in connected to the locking assembly (310), and the locking assembly (310) is arranged to release the movement restriction of the driving assembly (320) after the actuating device (200) is inserted to drive the driving assembly (320) to extend the collecting device (400) out of the housing (100), and to restrict the movement of the driving assembly (320) after being pulled out. The device effectively solves the problem that the blood collecting device in the prior art is easily pressed or touched by mistake to cause the blood collecting part to extend and hurt the human body, and the internal structure of the device is more reasonable.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to an apparatus and method for collecting blood or other fluids from a subject. Background Technology

[0002] Currently, blood sampling in humans mainly relies on the assistance of professional medical personnel. However, with the development of POCT (point-of-care testing) technology and changes in future hospital testing models, there will be more and more situations where people will need to complete blood sampling themselves.

[0003] However, ordinary people without professional skills find it difficult to collect blood on their own, or to collect blood stably and quickly. There is a device in the existing technology that uses a pressing structure similar to a ballpoint pen for self-service blood collection. Its principle is to cause the metal dome to deform and generate potential energy by pressing, and then release the potential energy to drive the blade to move quickly and pierce the skin. Finally, the spring at the bottom pushes the blade back quickly to complete the blood collection.

[0004] However, most of the devices mentioned above and related technologies are button-type designs. Pressing the button drives the blade or blood collection needle to extend and puncture the skin to collect blood. During use, it is easy to accidentally press or touch the button, causing unnecessary damage.

[0005] In view of the above, this application is hereby submitted. Summary of the Invention

[0006] This application provides an apparatus and method for collecting blood or other liquids from a subject, in order to solve the problem that blood collection devices in the prior art are prone to causing injury to the human body due to accidental pressing or touching.

[0007] To solve the above problems, this application adopts the following solution:

[0008] This application provides, in a first aspect, an apparatus for collecting blood or other liquids, including a housing, an actuation device, a transmission device, and a collection device;

[0009] The transmission device is disposed in the housing. The transmission device includes the locking component and the driving component. The driving component is connected to the acquisition device. At least a portion of the starting device is pluggably connected to the locking component. The locking component is configured to restrict the movement of the driving component before the starting device is inserted and to release the movement restriction on the driving component after the starting device is inserted, so that the driving component drives the acquisition device to extend out of the housing.

[0010] The device for collecting blood or other liquids according to this solution includes a housing, an actuation device, a transmission device, and a collection device. The transmission device includes a locking component and a driving component. The driving component is connected to the collection device and is used to drive the collection device to extend or retract. Both the transmission device and the collection device are housed within the housing. The actuation device is independent of the housing and is pluggably connected to the locking component. After the actuation device is inserted, the locking component releases the movement restriction on the driving component, allowing the driving component to drive the collection device to extend out of the housing. After the actuation device is pulled out, the movement of the driving component is restricted.

[0011] In this solution, the starting device is pluggably connected to the locking component. The collection device can only extend when the starting device is inserted into the locking component. It will not extend due to accidental touch or press, thus effectively solving the problem that the blood collection device in the prior art is prone to extending and injuring the human body due to accidental press or touch.

[0012] In other preferred embodiments, the locking component includes a push block and a slider, the push block being movable relative to the slider, the push block being configured to move along a first direction and drive the slider under the action of the activation device, and the slider being configured to move along a second direction under the action of the push block, for the purpose of restricting the movement of the acquisition device in the first direction and releasing the movement restriction on the acquisition device.

[0013] When the starting device is inserted, the pusher will drive the slider to move along the second direction to restrict the movement of the acquisition device in the first direction and release the restriction on the movement of the acquisition device. In this solution, the first direction and the second direction are not collinear, which makes the layout of the entire device more reasonable and avoids the device from being too slender.

[0014] In other preferred embodiments, the slider includes a first slider and a first deformable member located between the first slider and the inner wall of the housing. The first deformable member is connected to the first slider and is used to cause the first slider to reciprocate along the second direction. When the starting device is inserted, it will cause the first slider to squeeze the first deformable member to compress it. When the starting device is pulled out, the first deformable member will return to its original shape and cause the first slider to reset.

[0015] In other preferred embodiments, the sliders are symmetrically arranged on both sides of the acquisition device along the second direction, and the pusher is arranged between the two sliders and pushes the two sliders to move in opposite directions. The layout is more reasonable, and the pusher drives the sliders to move synchronously to opposite sides, which is more stable than unilateral movement.

[0016] In other preferred embodiments, the first slider has a main body and a limiting part. The main body is connected to the first deformable member, and the limiting part protrudes from the main body along the second direction. The limiting part is configured to at least partially stop the acquisition device in the first direction after the starting device is pulled out, and to release the stop on the acquisition device after the starting device is inserted. The limiting part achieves the limiting effect on the acquisition device. Specifically, when the starting device is not inserted, the acquisition device is in a retracted state. When the starting device is inserted, the limiting part releases the limiting effect on the acquisition device, allowing the acquisition device to extend.

[0017] In other preferred embodiments, the push block has a plug-in portion and a pressing portion, the plug-in portion being for plugging into the starting device, and the pressing portion protruding outside the plug-in portion for pressing the slider in the second direction.

[0018] In other preferred embodiments, the cross-sectional area of ​​the extrusion section gradually decreases along the insertion direction of the starting device, facilitating the insertion of the starting device.

[0019] In other preferred embodiments, the housing is provided with guide posts;

[0020] The insertion part includes an insertion section and a guide section. The insertion section is provided with an insertion groove. The guide section is sleeved on the guide post. The pressing part is provided on the guide section. When the starting device is inserted, the guide section presses the sliding member in the second direction, so that the limiting part releases the limiting effect on the acquisition device, allowing the acquisition device to extend.

[0021] In other preferred embodiments, the slider is provided with a positioning member corresponding to the extrusion part, and the positioning member has a receiving part that can accommodate the extrusion part to limit the movement of the extrusion part.

[0022] In other preferred embodiments, the driving assembly is located between the acquisition device and the inner wall of the housing. The driving assembly includes a driving shaft connected to the acquisition device and a driving elastic member sleeved outside the driving shaft. After the sliding member releases the movement restriction on the acquisition device, the driving elastic member pushes the driving shaft along the first direction and drives the acquisition device to move out of the housing to the acquisition position.

[0023] In other preferred embodiments, the drive assembly further includes a reset mechanism that pushes the acquisition device toward the housing after the acquisition device moves to the acquisition position. The reset mechanism separates from the drive elastic element to reset the acquisition device.

[0024] In other preferred embodiments, the reset mechanism includes a bushing sleeved outside the drive shaft and a reset elastic member connected to the bushing. The drive shaft passes through the bushing along the second direction and has a protrusion protruding outward. After the acquisition device moves to the acquisition position, the reset elastic member pushes the bushing and drives the drive shaft and the acquisition device to move into the housing via the protrusion.

[0025] In other preferred embodiments, the end of the reset elastic member away from the acquisition device is fixed to the bushing, and the end of the reset elastic member near the acquisition device is movably disposed relative to the housing along the second direction relative to the bushing.

[0026] In other preferred embodiments, both the driving elastic element and the reset elastic element are preloaded springs, the reset elastic element is sleeved on the outer periphery of the bushing, and the elastic coefficient of the driving elastic element is greater than that of the reset elastic element.

[0027] In other preferred embodiments, the drive assembly further includes a top limiting mechanism located at the end of the drive elastic member away from the acquisition device, the top limiting mechanism being used to pre-compress the drive elastic member and the reset elastic member.

[0028] In other preferred embodiments, the top limiting mechanism includes second sliders located on opposite sides of the drive shaft and limiting elastic members for driving the two second sliders to move relative to each other. At least two second sliders form a clearance portion, and one end of the drive shaft away from the acquisition device extends through the clearance portion to the outside of the top limiting mechanism and is spaced apart from the top limiting mechanism.

[0029] In other preferred embodiments, the top limiting mechanism includes second sliders located on opposite sides of the drive shaft and spaced apart from each other, and a pre-compression limiting elastic member connected between the two oppositely arranged second sliders. The top sliders and the pre-compression limiting elastic member form the clearance portion. A limiting groove is formed on the side of the second sliders near the acquisition device. The limiting groove is used to engage with the bushing.

[0030] When the acquisition device moves to the acquisition position, the driving elastic element drives the driving shaft to move the bushing and disengage from the limiting groove. The limiting elastic element drives the two second sliders to separate. The end of the driving elastic element away from the acquisition device is released through the gap generated by the separation between the second sliders. The reset elastic element pushes the bushing and drives the driving shaft and the acquisition device to move into the housing through the protrusion.

[0031] In other preferred embodiments, the top limiting mechanism includes second sliders located on opposite sides of the drive shaft and a pre-stretching limiting elastic member connected between the sliders and the housing, with the clearance portion formed between the second sliders.

[0032] In other preferred embodiments, the first direction is perpendicular to the second direction.

[0033] In other preferred embodiments, the housing is provided with an installation port and a collection port, the starting device is pluggably connected to the locking assembly via the installation port, and the transmission device drives the collection device to extend out of the housing via the collection port in the second direction.

[0034] In other preferred embodiments, the housing is provided with a first fluid channel communicating with the collection port, and the starting device is connected to the collection port via the first fluid channel.

[0035] In other preferred embodiments, the activating device includes an activating component and a first puncture component, the activating component being pluggably connected to the locking component, the first puncture component being pluggably connected to the activating component, and the first puncture component being configured to puncture the activating component when the activating component is inserted into the locking component of the transmission device, so that the activating component is connected to the acquisition device via the first puncture component.

[0036] In other preferred embodiments, the activation component includes a connector, a storage tube extending from the connector, and a negative pressure tube communicating with the storage tube. The connector is configured to be pluggably connected to the locking component. The negative pressure tube has a pressure below atmospheric pressure. The storage tube is configured to communicate with the collection device via the first puncture component when the connector is inserted into the locking component, for storing blood or other fluids collected by the collection device.

[0037] In other preferred embodiments, the collection device includes a housing having a receiving space and a puncture assembly at least partially housed within the receiving space, the housing including a contact wall through which a collection port penetrates; the puncture assembly is movable relative to the contact wall and is used to puncture a barrier through the collection port;

[0038] The contact wall includes a contact surface near the barrier, the contact surface being recessed in a direction away from the barrier to form a groove, the groove including a bottom wall opposite the barrier and a surrounding wall extending from the bottom wall toward the barrier and connecting the contact surface and the bottom wall.

[0039] The bottom wall has a central portion that protrudes towards the barrier and is spaced apart from the enclosure wall. The collection port is arranged around the outer periphery of the central portion and is located between the enclosure wall and the central portion.

[0040] In other preferred embodiments, the puncture assembly includes at least one microneedle, and the bottom wall has through holes corresponding to the collection port, each corresponding to one of the at least one microneedle.

[0041] In other preferred embodiments, the end of the second fluid channel away from the negative pressure tube extends into the containment space and communicates with the collection port.

[0042] In other preferred embodiments, the contact wall includes a first contact wall and a second contact wall stacked along the movement direction of the puncture assembly, the contact surface is located on the side of the first contact wall away from the second contact wall, the first contact wall penetrates to form the enclosure, the bottom wall is located on the side of the second contact wall close to the first contact wall, and the central portion extends from the second contact wall toward the first contact wall.

[0043] In other preferred embodiments, the second fluid channel is formed in the second contact wall, and one end away from the center penetrates the second contact wall and extends into the housing.

[0044] In other preferred embodiments, the end face of the central portion away from the bottom wall is coplanar with the contact surface.

[0045] In other preferred embodiments, the collection device further includes a flexible seal that covers the side of the contact wall opposite to the contact surface and connects the puncture assembly and the contact wall;

[0046] The flexible seal includes a central fixing part fixed to the puncture assembly, an edge fixing part surrounding the central fixing part, and a flexible sealing ring connected between the central fixing part and the edge fixing part. The puncture assembly extends through the central fixing part toward the contact wall, and the orthographic projection of the flexible seal on the contact wall covers the entire collection port.

[0047] In other preferred embodiments, the flexible sealing ring and the central fixing portion move with the puncture assembly.

[0048] In other preferred embodiments, the puncture assembly further includes a needle hub associated with the transmission device, to which the microneedle is fixed.

[0049] In other preferred embodiments, the starting device further includes a connector detachably connected to the locking assembly and a storage tube extending from the connector, the negative pressure tube communicating with the storage tube, the storage tube being located between the connector and the negative pressure tube, and the storage tube communicating with the second fluid channel via the connector.

[0050] In other preferred embodiments, the housing has a mounting portion, one of which includes a hollow tubular first piercing member with mounting ports at both ends, and the other includes a puncturable seal corresponding to the first piercing member. The first piercing member communicates with the second fluid channel. When the mounting portion is connected to the connector, the first piercing member pierces the puncturable seal and connects the storage tube to the second fluid channel.

[0051] In other preferred embodiments, the first piercing element is connected to the mounting portion, the locking component is disposed on the mounting portion, and when the starting device is inserted into the locking component, the first piercing element pierces the pierceable seal and communicates with the negative pressure tube.

[0052] In other preferred embodiments, the starting device further includes a capillary tube connected to the storage tube, and the storage tube is connected to the negative pressure tube via the capillary tube.

[0053] In other preferred embodiments, the storage tube includes a first open end corresponding to the connector connection and a second open end opposite to the first open end, a first sealing element is sleeved inside the second open end, and the capillary tube is fixed through the first sealing element and extends into the storage tube through the second open end.

[0054] In other preferred embodiments, the negative pressure tube is coaxially sleeved on the outside of the storage tube, and the starting device further includes a second sealing element sandwiched between the outer wall of the storage tube and the inner wall of the negative pressure tube.

[0055] In other preferred embodiments, the outer wall of the storage tube is provided with a positioning part, one end of the negative pressure tube near the connector abuts against the side of the positioning part away from the first opening end, and part of the second seal is sandwiched between the positioning part and the negative pressure tube.

[0056] In other preferred embodiments, the connector includes a puncturable seal that seals the first open end.

[0057] In other preferred embodiments, the puncturable seal includes a fixing portion located outside the mounting port end and having a size larger than the diameter of the storage tube, and a puncture portion extending from the fixing portion into the mounting port end and matching the diameter of the storage tube.

[0058] In other preferred embodiments, the connector further includes a cap that is fitted around the periphery of the fixing portion and extends to the periphery of the storage tube.

[0059] In other preferred embodiments, the fixing part has a relief groove extending to the puncture part, and when the connector is connected to the mounting part, the first puncturing member punctures the puncture part after passing through the relief groove and communicates with the storage tube.

[0060] This application provides, in another aspect, a device for collecting blood or other liquids, characterized in that it includes a housing, an actuating device, a transmission device, and a collection device. The housing is provided with an mounting port and a collection port. The transmission device is disposed within the housing, and at least a portion of the actuating device is disposed within the housing and connected to the transmission device via the mounting port. At least a portion of the collection device is disposed within the housing and collects blood or other liquids using the collection port. The collection port and the mounting port are not coaxially arranged.

[0061] In other preferred embodiments, the housing includes an upper housing and a lower housing, the lower housing having a collection port for the collection device to extend out, and the upper housing having a mounting port for the activation device to be inserted.

[0062] In other preferred embodiments, the projection of the acquisition port onto the upper housing along the extension / retraction direction of the acquisition device does not overlap with the mounting port. In other preferred embodiments, the transmission device includes the locking component and the driving component, the driving component being connected to the acquisition device, at least a portion of the activation device being pluggably connected to the locking component, and the locking component being configured to release the movement restriction on the driving component after the activation device is inserted, allowing the driving component to drive the acquisition device to extend out of the housing, and to restrict the movement of the driving component after it is pulled out.

[0063] In other preferred embodiments, the locking component includes a push block and a slider, the push block being movably connected to the slider, the push block being configured to move along a first direction and drive the slider under the action of the starting device, and the slider being configured to move along a second direction under the action of the push block, for the purpose of restricting the movement of the acquisition device in the first direction and releasing the movement restriction on the acquisition device.

[0064] In other preferred embodiments, the slider includes a first slider and a first deformable member located between the first slider and the inner wall of the housing, the first deformable member being connected to the first slider for reciprocating motion of the first slider along the second direction.

[0065] In other preferred embodiments, the sliders are symmetrically arranged on both sides of the acquisition device along the second direction, and the pusher is disposed between the two sliders and pushes the two sliders to move in opposite directions.

[0066] In other preferred embodiments, the first slider has a main body and a limiting part, the main body being connected to the first deformable member, the limiting part protruding from the main body in the second direction, and the limiting part being configured to at least partially stop the acquisition device in the first direction after the starting device is pulled out, and to release the stop on the acquisition device after the starting device is inserted.

[0067] In other preferred embodiments, the push block has a plug-in portion and a pressing portion, the plug-in portion being for plugging into the starting device, and the pressing portion protruding outside the plug-in portion for pressing the slider in the second direction.

[0068] In other preferred embodiments, the cross-sectional area of ​​the extrusion section gradually decreases along the insertion direction of the actuation device.

[0069] In other preferred embodiments, the housing is provided with guide posts;

[0070] The insertion part includes an insertion section and a guide section. The insertion section is provided with an insertion groove. The guide section is sleeved on the guide post. The extrusion part is provided on the guide section.

[0071] In other preferred embodiments, the slider is provided with a positioning member corresponding to the extrusion part, and the positioning member has a receiving part that can accommodate the extrusion part.

[0072] In other preferred embodiments, the driving assembly is located between the acquisition device and the inner wall of the housing. The driving assembly includes a drive shaft connected to the acquisition device and a pre-compression driving elastic member sleeved outside the drive shaft. After the sliding member releases the movement restriction on the acquisition device, the pre-compression driving elastic member pushes the drive shaft along the first direction and drives the acquisition device to move out of the housing to the acquisition position.

[0073] In other preferred embodiments, the drive assembly further includes a reset mechanism configured to push the acquisition device toward the housing after the acquisition device moves to the acquisition position, so as to reset the acquisition device.

[0074] In other preferred embodiments, the reset mechanism includes a bushing sleeved outside the drive shaft and a reset elastic member connected to the bushing. The drive shaft passes through the bushing along the second direction and has a protrusion protruding outward. After the acquisition device moves to the acquisition position, the reset elastic member pushes the bushing and drives the drive shaft and the acquisition device to move into the housing via the protrusion.

[0075] In other preferred embodiments, the end of the reset elastic member away from the acquisition device is fixed to the bushing, and the end of the reset elastic member near the acquisition device is movably disposed relative to the housing along the second direction relative to the bushing.

[0076] In other preferred embodiments, both the driving elastic element and the reset elastic element are preloaded springs, the reset elastic element is sleeved on the outer periphery of the bushing, and the elastic coefficient of the driving elastic element is greater than that of the reset elastic element.

[0077] In other preferred embodiments, the drive assembly further includes a top limiting mechanism located at the end of the pre-compression drive elastic member away from the acquisition device, the top limiting mechanism being used to pre-compress the pre-compression drive elastic member and the reset elastic member.

[0078] In other preferred embodiments, the top limiting mechanism includes second sliders located on opposite sides of the drive shaft and limiting elastic members for driving the two second sliders to move relative to each other. At least two second sliders form a clearance portion, and one end of the drive shaft away from the acquisition device extends through the clearance portion to the outside of the top limiting mechanism and is spaced apart from the top limiting mechanism.

[0079] In other preferred embodiments, the limiting elastic element is a pre-compression limiting elastic element connected between two opposing second sliders, the two second sliders and the pre-compression limiting elastic element forming the clearance portion; or

[0080] The limiting elastic element is a pre-stretched limiting elastic element connected between the slider and the housing, and the clearance portion is formed between the two second sliders.

[0081] In other preferred embodiments, a limiting groove is provided on the side of the second slider near the acquisition device, and the limiting groove is used to engage with the bushing;

[0082] When the acquisition device moves to the acquisition position, the driving elastic element drives the driving shaft to move the bushing and disengage from the limiting groove. The limiting elastic element drives the two second sliders to separate. The end of the driving elastic element away from the acquisition device is released through the gap generated by the separation between the second sliders. The reset elastic element pushes the bushing and drives the driving shaft and the acquisition device to move into the housing through the protrusion.

[0083] In other preferred embodiments, the first direction is perpendicular to the second direction.

[0084] In other preferred embodiments, the housing is provided with a first fluid channel, and the starting device is connected to the acquisition device through the first fluid channel.

[0085] In other preferred embodiments, the activating device includes an activating component and a first puncture component, the activating component being pluggably connected to the locking component, the first puncture component being pluggably connected to the activating component, and the first puncture component being configured to puncture the activating component when the activating component is inserted into the locking component of the transmission device, so that the activating component is connected to the acquisition device via the first puncture component.

[0086] In other preferred embodiments, the activation component includes a connector, a storage tube extending from the connector, and a negative pressure tube communicating with the storage tube. The connector is configured to be pluggably connected to the locking component. The negative pressure tube has a pressure below atmospheric pressure. The storage tube is configured to communicate with the collection device via the first puncture component when the connector is inserted into the locking component, for storing blood or other fluids collected by the collection device.

[0087] In other preferred embodiments, one of the first puncture assembly and the activation assembly includes a hollow tubular first puncture member with openings at both ends, and the other includes a first puncturable seal corresponding to the first puncture member. The first puncture member is configured to puncture the first puncturable seal when the connector is inserted into the locking assembly, so as to connect the storage tube to the acquisition device.

[0088] In other preferred embodiments, the starting component further includes a capillary tube connected to the storage tube, the storage tube being connected to the negative pressure tube via the capillary tube.

[0089] In other preferred embodiments, the storage tube includes a first open end corresponding to the connector connection and a second open end opposite to the first open end, a first sealing element is sleeved inside the second open end, and the capillary tube is fixed through the first sealing element and extends into the storage tube through the second open end.

[0090] In other preferred embodiments, the negative pressure tube is coaxially sleeved on the outside of the storage tube, and the starting assembly further includes a second sealing element sandwiched between the outer wall of the storage tube and the inner wall of the negative pressure tube.

[0091] In other preferred embodiments, the outer wall of the storage tube is provided with a positioning part, one end of the negative pressure tube near the connector abuts against the side of the positioning part away from the first opening end, and part of the second seal is sandwiched between the positioning part and the negative pressure tube.

[0092] In other preferred embodiments, the activation component includes a first puncturable seal that seals the first open end. The first puncturable seal includes a fixing portion located outside the open end and having a size larger than the diameter of the storage tube, and a puncture portion extending from the fixing portion into the open end and matching the diameter of the storage tube.

[0093] In other preferred embodiments, the connector includes a cap that fits around the periphery of the fixing portion and extends to the periphery of the storage tube.

[0094] In other preferred embodiments, the fixing part has an avoidance groove extending to the puncture part corresponding to the first punctureable seal. When the connector is inserted into the locking assembly, the first puncture member punctures the puncture part after passing through the avoidance groove and communicates with the storage tube.

[0095] In other preferred embodiments, the collection device includes a second puncture assembly, a second puncturable seal, and a blood collection assembly. At least a portion of the blood collection assembly is disposed at the collection port and located within the housing. The second puncturable seal is disposed between the housing and the blood collection assembly. The second puncture assembly is configured to extend out of the housing through the second puncturable seal under the action of the driving assembly.

[0096] In other preferred embodiments, the blood collection assembly includes a first base plate and a second base plate stacked along the first direction. The first base plate and the second base plate are disposed outside the collection port and connected to the housing. The first base plate and the second base plate together form a collection cavity. Since the collection cavity is configured to connect the storage tube to the collection device when the starting device is inserted into the locking assembly, the collection port and the storage tube are connected to an internal pressure lower than atmospheric pressure to collect blood or other liquids.

[0097] In other preferred embodiments, the second puncturable seal includes a first sealing portion, an elastically deformable portion, and a second sealing portion, wherein the elastically deformable portion is located between the first sealing portion and the second sealing portion, the first sealing portion is configured to be puncturable by the second puncturable seal, and the second sealing portion is located at the collection port.

[0098] In other preferred embodiments, the elastic deformation portion is initially formed as a hollow frustum-shaped structure.

[0099] In other preferred embodiments, the second puncture assembly includes a needle hub and at least one microneedle fixed to the needle hub, and the first base plate is provided with through holes corresponding one-to-one with the at least one microneedle.

[0100] In other preferred embodiments, the first base plate is further provided with a second fluid channel, which is connected to the collection cavity.

[0101] In other preferred embodiments, at least a portion of the fluid channel is formed as a wavy structure.

[0102] In other preferred embodiments, the second base plate is provided with a through hole, and the first base plate is provided with a central portion protruding in the direction of the through hole, the central portion being disposed in the through hole and forming a gap with the through hole; the second puncture component is disposed at a position corresponding to the gap.

[0103] In other preferred embodiments, the surface of the central portion away from the first base plate is flush with the surface of the second base plate away from the first base plate.

[0104] In another aspect, this application provides a method for collecting blood or other fluids from a subject, comprising:

[0105] The shell is applied to the subject's skin, and the shell contains a collection device that can move retractably relative to the shell and a transmission device associated with the collection device;

[0106] The activation device is inserted into the transmission device, which drives the acquisition device to extend from the housing in a first direction to pierce the subject's skin.

[0107] In other preferred embodiments, the transmission device drives the acquisition device to extend from the housing along a first direction, including:

[0108] The transmission device includes the locking component and the driving component, the driving component is connected to the acquisition device, and the starting device is pluggably connected to the locking component;

[0109] The starting device drives the locking component to slide relative to the housing in a second direction to release the movement restriction on the driving component;

[0110] The locking component drives the driving component, which in turn drives the acquisition device to move outward along the first direction from the housing.

[0111] In other preferred embodiments, the locking component drives the driving component, including:

[0112] The locking component moves from the first position to the second position along the second direction, and a limiting part is provided at one end of the locking component near the driving component; in the first position, the limiting part is located on the movement path of the acquisition device and limits at least part of the acquisition device within the housing; in the second position, the limiting part disengages from the driving component and releases the acquisition device.

[0113] In other preferred embodiments, the actuation device drives the locking assembly to slide relative to the housing in the second direction, including:

[0114] The locking assembly includes a push block and a slider. The push block is configured to move along a first direction and drive the slider under the action of the starting device. The slider is configured to move along a second direction under the action of the push block.

[0115] In other preferred embodiments, the locking component drives the driving component, which in turn drives the acquisition device to move outward along the first direction from the housing, including:

[0116] After the drive assembly disengages from the limiting part, the drive elastic element in the drive assembly pushes the drive shaft associated with the acquisition device and drives the acquisition device to move out of the housing and pierce the subject's skin.

[0117] In other preferred embodiments, the method further includes:

[0118] The drive assembly further drives the drive shaft and moves the bushing sleeved outside the drive shaft and the collection device toward the skin to the blood collection position, compressing the reset elastic member sleeved on the bushing.

[0119] The compressed reset elastic element drives the bushing via the drive shaft to move the collection device from the blood collection position toward the housing to move away from the subject's skin.

[0120] In other preferred embodiments, the housing has a collection port on the side near the collection device, and the transmission device drives the collection device to extend out of the housing through the collection port along the first direction. The method further includes:

[0121] After the starting device is inserted into the transmission device, the negative pressure tube inside the starting device is connected to the collection port, and the skin of the subject is drawn into the collection port by the pressure difference between the collection port and the negative pressure tube.

[0122] The blood or other fluid produced after the skin is punctured by the collection device flows into the negative pressure tube through the collection port.

[0123] In another aspect, this application provides a microneedle driving mechanism for driving a microneedle assembly that can retract and move along a first direction, comprising:

[0124] case;

[0125] A drive shaft housed within the housing and connected to the microneedle assembly;

[0126] A driving elastic element is sleeved on the driving shaft, and the driving elastic element is located between the inner wall of the housing and the microneedle assembly;

[0127] The limiting part is located in the movement path of the microneedle assembly, and the limiting part is movable relative to the housing under the drive of an external force;

[0128] The direction of movement of the limiting part is not parallel to the first direction.

[0129] In other preferred embodiments, the housing includes a hollow lower housing supported on the side of the limiting portion away from the drive shaft, and a hollow upper housing fixed relative to the lower housing and limited on the side of the drive shaft away from the lower housing.

[0130] In other preferred embodiments, the housing further includes an annular support wall clamped and fixed between the upper housing and the lower housing and surrounding the drive shaft and the drive elastic member.

[0131] In other preferred embodiments, the limiting portion is sandwiched between the annular support wall and the lower housing along the first direction, and the lower housing is spaced apart from the limiting portion along the movement direction of the limiting portion.

[0132] In other preferred embodiments, a reset mechanism is further included, located between the driving elastic element and the annular support wall, the reset mechanism driving the microneedle assembly toward the upper housing, the reset mechanism being separated from the driving elastic element.

[0133] In other preferred embodiments, the microneedle assembly includes a needle hub and at least one microneedle connected to the needle hub.

[0134] In other preferred embodiments, the needle holder has a countersunk hole along a first direction, and the end of the drive shaft extends axially to have a snap-fit ​​portion, which can be inserted into and fixed in the countersunk hole.

[0135] In other preferred embodiments, the snap-fit ​​portion includes a snap-fit ​​body connected to the drive shaft and a shoulder connected to the snap-fit ​​body, the shoulder being able to approach or move away from the central axis of the drive shaft;

[0136] The countersunk hole extends through the needle holder in a first direction, and the shoulder can pass through the countersunk hole and abut against the side of the needle holder away from the drive shaft.

[0137] In other preferred embodiments, the needle seat has a slot on the side away from the drive shaft that can accommodate the shoulder. The slot is recessed into the needle seat, and the shoulder can engage in the slot when the snap-fit ​​body passes through the countersunk hole.

[0138] Compared with the prior art, this application has at least the following beneficial effects:

[0139] The device for collecting blood or other liquids provided in this application includes a housing, an actuation device, a transmission device, and a collection device. The transmission device includes a locking component and a driving component that cooperate with each other. The locking component can lock and unlock the driving component. The driving component is connected to the collection device and is used to drive the collection device to extend and retract. When the locking component is in the unlocked state, it releases the restriction on the driving component, and the collection device extends. Both the transmission device and the collection device are housed within the housing. The actuation device is independent of the housing and is pluggably connected to the locking component. After the actuation device is inserted, the locking component releases the movement restriction on the driving component, allowing the driving component to drive the collection device to extend out of the housing. After the actuation device is pulled out, it restricts the movement of the driving component, preventing the collection device from extending and ensuring that it will not accidentally extend and injure the human body, thus improving the safety performance of the device.

[0140] In this application, the activation device is pluggably connected to the locking component. The collection device can only extend when the activation device is inserted into the locking component, and the collection device will not extend due to accidental touch or press. This effectively solves the problem in the prior art that the blood collection device is prone to extending and injuring the human body due to accidental press or touch. Attached Figure Description

[0141] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0142] Figure 1 A perspective view of the apparatus for collecting blood or other liquids provided in this application;

[0143] Figure 2 for Figure 1 A top view of a device used to collect blood or other liquids;

[0144] Figure 3A schematic diagram of the internal structure of the device for collecting blood or other liquids provided in this application;

[0145] Figure 4 A schematic diagram of a specific structure of the transmission device provided in this application;

[0146] Figure 5 Another specific structural schematic diagram of the transmission device provided in this application;

[0147] Figure 6 A schematic diagram of a specific structure of the slider provided in this application;

[0148] Figure 7 A schematic diagram of the internal structure of the starting device provided in this application;

[0149] Figure 8 A schematic diagram of the internal structure of the starting device provided in this application;

[0150] Figure 9 Another internal structural diagram of the starting device provided in this application;

[0151] Figure 10A for Figure 2 The diagram shows a cross-sectional view along line AA in a device used to collect blood or other liquids.

[0152] Figure 10B for Figure 10A A partial schematic diagram of a device for collecting blood or other liquids is shown.

[0153] Figure 11 for Figure 2 The diagram shows a cross-sectional view of the device used to collect blood or other liquids along line AA.

[0154] Figure 12 A three-dimensional structural schematic diagram of the slider provided in this application;

[0155] Figure 13 A three-dimensional structural schematic diagram of the driving component provided in this application;

[0156] Figure 14 Another three-dimensional structural diagram of the driving component provided in this application;

[0157] Figure 15 Another exploded structural diagram of the data acquisition device provided in this application;

[0158] Figure 16 for Figure 2 Schematic diagram of the drive shaft in the middle BB section;

[0159] Figure 17A schematic diagram of the shell structure provided in this application;

[0160] Figure 18 A schematic diagram of the internal structure of the starting device provided in this application;

[0161] Figure 19 A schematic diagram of a specific structure of the connector provided in this application;

[0162] Figure 20 A schematic diagram of the blood collection device provided in this application when it is not triggered;

[0163] Figure 21 This is a schematic diagram of the structure of the blood collection device provided in this application after it is triggered.

[0164] The components represented by each number in the above attached diagram are listed below:

[0165] 100, housing; 100A, upper housing; 100B, annular support wall; 100C, lower housing; 100a, bracket; 101, guide post; 102, first puncture assembly; 103, first puncture element; 104, first puncturable seal 104;

[0166] 200. Starting device; 210. Negative pressure tube; 220. Connector; 220A. Fixing part; 220B. Puncture part; 220C. Clearance groove; 221. Crown; 230. Storage tube; 231. First opening end; 232. Second opening end; 233. First seal; 234. Second seal; 235. Positioning part; 240. Capillary tube;

[0167] 300. Transmission device;

[0168] 310. Locking component; 311. Push block; 3111. Insertion part; 3111A. Insertion section; 3111B. Guide section; 3111C. Insertion groove; 3112. Pressing part; 312. Sliding member; 3121. First slider; 3121A. Main body; 3121B. Limiting part; 3121C. Positioning member; 3121D. Storage part; 3122. First deformable member;

[0169] 320. Drive assembly; 321. Drive shaft; 321A. Protrusion; 321B. Snap-fit ​​body; 321C. Shoulder; 322. Drive elastic element; 323. Reset mechanism; 3231. Bushing; 3232. Reset elastic element; 3233. Abutment part; 3234. Mounting part; 324. Top limiting mechanism; 3241. Clearance part; 3242. Second slider; 32421. Limiting groove; 3243. Preload limiting elastic element;

[0170] 400, Collection device; 401, Collection port; 402, Installation port; 4021, First fluid channel; 4022, Second fluid channel; 411, Second puncture assembly; 411A, Microneedle; 411B, Needle seat; 411C, Countersunk hole; 411D, Slot;

[0171] 412. Blood collection assembly; 412A. Second base plate; 412B. First base plate; 4121. Contact surface; 4122. Groove; 4122A. Bottom wall; 4122B. Enclosure wall; 4122C. Center part; 4122D. Through hole; 413. Second punctureable seal; 413A. First sealing part; 413B. Elastic deformation part; 413C. Second sealing part;

[0172] 500, Barrier. Detailed Implementation

[0173] To make the above and other features and advantages of this application clearer, the application is further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art and are exemplary only, not restrictive.

[0174] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0175] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0176] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0177] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0178] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0179] Example 1

[0180] like Figure 1-3 As shown, this application provides an apparatus for collecting blood or other liquids in a first aspect, including a housing 100, an activation device 200, a transmission device 300, and a collection device 400.

[0181] The collection device 400 is disposed in the housing 100 and is used to puncture a barrier (such as skin) and collect blood or other liquids.

[0182] The transmission device 300 is disposed in the housing 100. The transmission device 300 includes a locking component 310 and a driving component 320. The driving component 320 is connected to the collection device 400 and is used to control the extension and retraction of the collection device 400 to complete the collection action. The starting device 200 is pluggably connected to the locking component 310. The locking component 310 is configured to restrict the movement of the driving component 320 before the starting device 200 is inserted, and to release the restriction on the movement of the driving component 320 after the starting device 200 is inserted, so that the driving component 320 drives the collection device 400 to extend out of the housing 100. That is, when the starting device 200 is not inserted into the locking component 310, the device is in an unused state. At this time, the locking component 310 will lock the driving component 320, so that the driving component 320 cannot drive the collection device 400 to extend, thus ensuring the safety of the device. When the starting device 200 is inserted into the locking component 310, the locking component 310 releases the restriction on the driving component 320, so that the driving component 320 drives the collection device 400 to extend out of the housing 100 to complete the collection of blood or other liquids.

[0183] The device for collecting blood or other liquids according to this solution includes a housing 100, an actuation device 200, a transmission device 300, and a collection device 400. The transmission device 300 includes a locking component 310 and a driving component 320 that cooperate with each other. The locking component 310 can lock and unlock the driving component 320. The driving component 320 is connected to the collection device 400 and is used to drive the collection device 400 to extend and retract. When the locking component 310 is in the unlocked state, it releases the restriction on the driving component 320, and the collection device 400 extends, and the transmission device extends. Both the device 300 and the data acquisition device 400 are housed within the housing 100. The starting device 200 is independent of the housing 100 and is pluggably connected to the locking component 310. After the starting device 200 is inserted, the locking component 310 releases the movement restriction on the driving component 320, allowing the driving component 320 to drive the data acquisition device 400 out of the housing 100. After the starting device 200 is pulled out, the movement of the driving component 320 is restricted, preventing the data acquisition device 400 from extending. This ensures that the data acquisition device 400 will not extend due to accidental contact and could not injure the human body, thus improving the safety performance of the device.

[0184] In this solution, the starting device 200 is pluggably connected to the locking component 310. The collection device 400 can only extend when the starting device 200 is inserted into the locking component 310. The collection device 400 will not extend due to accidental touch or press, thus effectively solving the problem in the prior art that the blood collection device is prone to extending and injuring the human body due to accidental press or touch.

[0185] Example 2

[0186] Furthermore, such as Figure 4 and Figure 5As shown, Embodiment 2 is a further improvement on Embodiment 1. The locking component 310 includes a push block 311 and a slider 312. The push block 311 is movable to the slider 312. The movement of the push block 311 itself can drive the slider 312 to move. In this embodiment, it is not limited how the push block 311 drives the slider 312 to move. The push block 311 can be set to directly contact and abut against the slider 312, or it can be indirectly driven to move the slider 312 through a certain intermediary.

[0187] The push block 311 is configured to move along a first direction under the action of the starting device 200 and drive the sliding member 312. The sliding member 312 is configured to move along a second direction under the action of the push block 311 to restrict the movement of the collection device 400 in the first direction and release the restriction on the movement of the collection device 400. The sliding member 312 can restrict the movement of the collection device 400 in the first direction, which is the direction in which the collection device 400 pierces the barrier. When the sliding member 312 is in a certain locked position, it can restrict the movement of the collection device 400 in the first direction, that is, restrict the collection device 400 from extending. When the sliding member 312 moves along the second direction to another unlocked position under the action of the push block 311, it releases the restriction on the movement of the collection device 400 in the first direction, so that the collection device 400 can move along the first direction and extend out of the housing 100 to complete the collection action.

[0188] In this scheme, the slider 312 and the acquisition device 400 can be limited by a buckle-like structure. When the slider 312 moves to another unlocked position in the second direction under the action of the push block 311, the buckle separates, releasing the limitation on the drive component 320, so that it drives the acquisition device 400 to extend.

[0189] When the starting device 200 is inserted, the push block 311 is subjected to force and moves along the first direction. At this time, the sliding member 312 will move along the second direction under the action of the push block 311 to move away from the acquisition device 400. This releases the sliding member 312 from the movement restriction of the acquisition device 400 in the first direction. The first direction and the second direction in this solution are not collinear, which makes the layout of the entire device more reasonable and avoids it from being too slender.

[0190] Optional, such as Figure 5 As shown, the slider 312 includes a first slider 3121 and a component located between the first slider 3121 and the housing 100. Figure 5The first deformable member 3122 (showing only the bottom of the housing 100) is connected to the first slider 3121 and is used to make the first slider 3121 reciprocate in the second direction. When the starting device 200 is inserted, it will drive the first slider 3121 to squeeze the first deformable member 3122 to compress it. When the starting device 200 is pulled out, the first deformable member 3122 will return to its original shape and drive the first slider 3121 to reset, thereby limiting the drive assembly 320 again.

[0191] Optional, such as Figure 5 As shown, in this embodiment, sliding members 312 are symmetrically arranged on both sides of the acquisition device 400, making the structure more stable and the internal layout of the device more symmetrical and reasonable. The push block 311 is arranged between the two sliding members 312 and pushes the two sliding members 312 to move in opposite directions. The sliding members 312 are symmetrically arranged with respect to the push block 311, which is reasonable. The push block 311 drives the sliding members 312 to move synchronously to opposite sides, which is more stable than unilateral movement. The first deformable member 3122 can be a spring. When the starting device 200 is inserted, the push block 311 will squeeze the pair of first sliders 3121 on its outer side in the second direction. Because the spring is compressed, the first sliders 3121 will also move away from each other, thereby releasing the restriction on the driving component 320. Then the driving component 320 will drive the acquisition device 400 to extend out of the housing 100 in the first direction.

[0192] Furthermore, the structure of the first slider 3121 is further specified, such as... Figure 4 and Figure 6 As shown, the first slider 3121 has a main body 3121A and a limiting part 3121B. The main body 3121A is connected to the first deformable member 3122. The limiting part 3121B protrudes from the main body 3121A in the second direction. The limiting part 3121B is configured to at least partially stop the acquisition device 400 in the first direction after the starting device 200 is pulled out, and to release the stop on the acquisition device 400 after the starting device 200 is inserted. The limiting function of the acquisition device 400 is realized by the limiting part 3121B. Specifically, when the starting device 200 is not inserted, the acquisition device 400 is in a retracted state. When the starting device 200 is inserted, the limiting part 3121B releases the limiting function of the acquisition device 400, allowing the acquisition device 400 to extend.

[0193] Optionally, the limiting part 3121B is an inverted triangular block. Before the starting device 200 is inserted, the upper part of the inverted triangular block will abut against the driving component 320, preventing the driving component 320 from driving the acquisition device 400 to extend. After the starting device 200 is inserted, the inverted triangular block will separate from the acquisition device 400, thereby releasing the restriction on the driving component 320, allowing the driving component 320 to drive the acquisition device 400 to extend along the first direction and pierce the barrier.

[0194] Example 3

[0195] like Figure 4 As shown, this embodiment provides a more specific definition of the structure of the push block 311. The push block 311 has an insertion part 3111 and a pressing part 3112. The insertion part 3111 is used to insert into the starting device 200. The insertion part 3111 can be a groove-shaped structure that can accommodate the starting device 200. The pressing parts 3112 are arranged in pairs and protrude from the outside of the insertion part 3111. They are used to press the sliding member 312 in the second direction. When the starting device 200 is inserted into the insertion part 3111 of the push block 311, the two pressing parts 3112 of the push block 311 will press the two sliding members 312 in the second direction respectively, and the limiting part 3121B of the sliding member 312 will be disengaged from the acquisition device 400 to release the limiting effect on the drive assembly 320.

[0196] Optionally, the cross-sectional area of ​​the extrusion part 3112 gradually decreases along the insertion direction of the starting device 200, which facilitates the insertion of the starting device 200.

[0197] In this embodiment, the extrusion part 3112 is narrow at the bottom and thick at the top. The narrower bottom end facilitates the insertion of the starting device 200 into the insertion part 3111, while the thicker top end is used to extrude the sliding member 312. Optionally, the extrusion part 3112 is an inverted right-angled triangle structure, and its hypotenuse extrudes the insertion part 3111, causing the insertion part 3111 to move and push the sliding member 312.

[0198] This embodiment further supplements the structure of the housing 100, providing a guide post 101; for example... Figure 9 As shown, the insertion part 3111 includes an insertion section 3111A and a guide section 3111B. The insertion section 3111A is provided with an insertion groove 3111C. The guide section 3111B is sleeved on the guide post 101, which facilitates the installation of the guide section 3111B and avoids errors that affect accuracy. The pressing part 3112 is provided on the guide section 3111B. Specifically, the pressing part 3112 is connected to the guide section 3111B and is integrally formed on the outside of the guide section 3111B. It is used to press the sliding member 312. When the starting device 200 is inserted, the pressing part 3112 on the outside of the guide section 3111B presses the sliding member 312 in the second direction, so that the limiting part 3121B releases the limiting effect on the drive assembly 320, thereby allowing the acquisition device 400 to extend.

[0199] Furthermore, such as Figure 12As shown, the slider 312 is further improved. The slider 312 is provided with a positioning member 3121C corresponding to the pressing part 3112. The positioning member 3121C has a receiving part 3121D that can accommodate the pressing part 3112 and is used to limit the movement of the pressing part 3112. When the starting device 200 is inserted, the pressing part 3112 will press the slider 312. When the pressing part 3112 moves to the lowest point, the pressing part 3112 can enter the receiving part 3121D and abut against the positioning member 3121C, which means that the starting device 200 is inserted in place.

[0200] Example 4

[0201] like Figure 7 and Figure 10A As shown in Figure -B, this embodiment is a further improvement on Embodiment 2. The driving component 320 is located between the acquisition device 400 and the inner wall of the housing 100, and is used to drive the acquisition device 400 to extend or retract from the housing 100. A bracket 100a is also provided inside the housing 100 to support the driving component 320, such as... Figure 10A As shown, the internal bracket 100a is fixed to the lower housing 100c by a structure such as screws, forming a space for installing the drive assembly 320. Specifically, when the starting device 200 is inserted into the housing 100, the sliding member 312 is compressed to move in opposite directions. At this time, the limiting part 3121B on the sliding member 312 can release the movement restriction on the drive assembly 320, and the drive assembly 320 can drive the acquisition device 400 to extend. The drive assembly 320 includes a drive shaft 321 connected to the acquisition device 400 and a drive elastic member 322 sleeved outside the drive shaft 321. When the sliding member 312 moves to the state where the limiting part 3121B is disengaged from the drive assembly 320, the sliding member 312 releases the movement restriction on the acquisition device 400. The pre-compressed drive elastic member 322 pushes the drive shaft 321 along the first direction and drives the acquisition device 400 to move out of the housing 100 to the acquisition position. In this embodiment, the first direction in which the acquisition device 400 extends is parallel to the direction in which the starting device 200 is inserted.

[0202] Example 5

[0203] like Figure 7 and Figure 10A As shown in -B, in this embodiment, the driving assembly 320 includes a driving shaft 321 connected to the collection device 400 and a driving elastic member 322 sleeved on the driving shaft 321, as well as a reset mechanism 323. After the collection device 400 moves to the collection position, the reset mechanism 323 pushes the collection device 400 to move into the housing 100. The reset mechanism 323 separates from the driving elastic member 322. That is, the driving assembly 320 can drive the collection device 400 to extend to collect blood or other liquids, and can also drive the collection device 400 to retract after the collection is completed to ensure sampling safety.

[0204] Optionally, the reset mechanism 323 includes a bushing 3231 sleeved outside the drive shaft 321 and a reset elastic member 3232 connected to the bushing 3231. The drive shaft 321 passes through the bushing 3231 along a first direction and has a protrusion 321A protruding outward. That is, the drive shaft 321 is located inside the bushing 3231, and the bushing 3231 is located inside the reset elastic member 3232. After the acquisition device 400 moves to the acquisition position, the reset elastic member 3232 pushes the bushing 3231 and drives the drive shaft 321 and the acquisition device 400 to move into the housing 100 via the protrusion 321A.

[0205] Optionally, in other preferred embodiments, the bottom of the bushing 3231 extends inward to form an abutment portion 3233 that abuts against the protrusion 321A. When the reset elastic member 3232 resets and springs back, the abutment portion 3233 abuts against the protrusion 321A and drives the protrusion 321A to move in the direction of the reset elastic member 3232's springback, that is, drives the drive shaft 321 to move in the direction of the reset elastic member 3232's springback, thereby causing the acquisition device 400 to move into the housing 100.

[0206] Optionally, the end of the reset elastic element 3232 away from the acquisition device 400 is fixed to the bushing 3231, and the end of the reset elastic element 3232 near the acquisition device 400 is movable relative to the bushing 3231 along the first direction.

[0207] like Figure 10B As shown, the upper half of the bushing 3231 is provided with a mounting member 3234 protruding outward. One end of the reset elastic member 3232 is fixed in the mounting member 3234, and the other end can be movably disposed relative to the bushing 3231 in the first direction. When the other end moves in the opposite direction of the first direction, it can drive the bushing 3231 to move in the same direction, and then drive the drive shaft 321 to move towards the inside of the housing 100 through the protrusion 321A, so that the acquisition device 400 retracts into the housing 100.

[0208] Example 6

[0209] like Figure 10B As shown, this embodiment proposes a preferred choice for the driving elastic element 322 and the reset elastic element 3232. Both the driving elastic element 322 and the reset elastic element 3232 are pre-compressed springs. The pre-compressed spring can increase the load capacity of the spring. The reset elastic element 3232 is sleeved on the outer periphery of the bushing 3231. The elastic coefficient of the driving elastic element 322 is greater than that of the reset elastic element 3232. This allows the driving elastic element 322 to resist the elasticity of the reset elastic element 3232 after the limiting part 3121B releases the restriction on the acquisition device 400, and allows the acquisition device 400 to extend.

[0210] Example 7

[0211] like Figure 7 As shown, to better understand how the driving elastic element 322 works, this embodiment provides a feasible solution. In this embodiment, the driving assembly 320 also includes a top limiting mechanism 324 located at the end of the driving elastic element 322 away from the acquisition device 400. The top limiting mechanism 324 is used to pre-compress the driving elastic element 322, that is, the driving elastic element 322 is located between the protrusion 321A on the side wall of the driving shaft 321 and the top limiting mechanism 324. When the limiting part 3121B releases the limiting effect on the acquisition device 400, the driving shaft 321 will move along the first direction under the action of the driving elastic element 322, and drive the acquisition device 400 to extend out of the housing 100. When the top limiting mechanism 324 releases the pre-compressing effect on the driving elastic element 322, the driving elastic element 322 will move toward the direction of the top limiting mechanism 324.

[0212] Example 8

[0213] like Figure 10B and Figure 14 As shown, this embodiment provides a specific implementation of the cooperation between the top limiting mechanism 324 and the drive shaft 321, which can be combined with other embodiments. In this embodiment, the top limiting mechanism 324 is provided with a clearance part 3241 corresponding to the drive shaft 321. The end of the drive shaft 321 away from the acquisition device 400 can pass through the clearance part 3241. The end of the drive shaft 321 away from the acquisition device 400 extends through the clearance part 3241 to the outside of the top limiting mechanism 324 and is spaced apart from the top limiting mechanism 324.

[0214] In some embodiments, the specific arrangement of the top limiting mechanism 324 is described in more detail. The top limiting mechanism 324 includes second sliders 3242 located on opposite sides of the drive shaft 321 and spaced apart from each other, and a pre-compression limiting elastic member 3243 connected between the two oppositely arranged second sliders 3242. The top sliders and the pre-compression limiting elastic member 3243 form a clearance portion 3241. A limiting groove 32421 is provided on the side of the second slider 3242 near the acquisition device 400. The limiting groove 32421 is used to engage with the bushing 3231. Specifically, the side of the bushing 3231 away from the acquisition device 400 engages with the limiting groove 32421 to restrict the movement of the two second sliders 3242. When the bushing 3231 moves along the first direction under the action of the drive elastic member 322, the bushing 3231 will disengage from the limiting groove 32421, thereby releasing the limiting effect on the two second sliders 3242.

[0215] When the acquisition device 400 moves to the acquisition position, the driving elastic element 322 drives the driving shaft 321 to move the bushing 3231 and disengage from the limiting groove 32421. The pre-pressing limiting elastic element 3243 drives the two second sliders 3242 to separate, and the gap of the clearance part 3241 increases. The end of the driving elastic element 322 away from the acquisition device 400 is released through the gap generated by the separation between the second sliders 3242. At this time, the reset elastic element 3232 pushes the bushing 3231 and drives the driving shaft 321 and the acquisition device 400 to move into the housing 100 through the protrusion 321A, so that the acquisition device 400 is reset.

[0216] Example 9

[0217] This embodiment proposes a structure different from the top limiting mechanism 324 in embodiment 8. The top limiting mechanism 324 includes second sliders 3242 located on opposite sides of the drive shaft 321 and a pre-stretching limiting elastic member (not shown in the figure) connected between the sliders and the housing 100. The second sliders 3242 are spaced apart to form clearance portions 3241.

[0218] In the initial state, the pre-stretched limiting elastic element is in an elongated and stretched state. The second slider 3242 has a limiting groove 32421 on the side near the acquisition device 400. The limiting groove 32421 is used to engage with the bushing 3231. Specifically, the side of the bushing 3231 away from the acquisition device 400 engages with the limiting groove 32421 to restrict the movement of the two second sliders 3242. When the bushing 3231 moves along the first direction under the action of the driving elastic element 322, the bushing 3231 will disengage from the limiting groove 32421, thereby releasing the limiting effect on the two second sliders 3242.

[0219] When the acquisition device 400 moves to the acquisition position, the driving elastic element 322 drives the driving shaft 321 to move the bushing 3231 and disengage from the limiting groove 32421. The pre-stretching limiting elastic element drives the two second sliders 3242 to separate, and the gap of the clearance part 3241 increases. The end of the driving elastic element 322 away from the acquisition device 400 is released through the gap generated by the separation between the second sliders 3242. At this time, the reset elastic element 3232 pushes the bushing 3231 and drives the driving shaft 321 and the acquisition device 400 to move into the housing 100 through the protrusion 321A, so that the acquisition device 400 is reset.

[0220] Example 10

[0221] To ensure a more compact overall structure, in this embodiment, the first direction is set to be perpendicular to the second direction, so that components such as the push block 311 and the sliding member 312 are symmetrically distributed within the housing 100, resulting in a more reasonable layout.

[0222] Optionally, the first direction is parallel to the direction in which the collecting device 400 pierces the barrier, and the second direction is parallel to the cross-section of the barrier surface, so as to ensure positive piercing of the barrier and ensure the collecting effect.

[0223] Example 11

[0224] like Figure 7 and Figure 11 As shown, this embodiment further improves how the acquisition device 400 realizes the acquisition function. Specifically, an acquisition port 401 is provided on the side of the housing 100 near the acquisition device 400, and the transmission device 300 drives the acquisition device 400 to extend out of the housing 100 through the acquisition port 401 along the first direction.

[0225] After the starting device 200 is inserted, the locking component 310 releases the movement restriction on the driving component 320, so that the driving component 320 drives the acquisition device 400 to extend out of the housing 100 through the acquisition port 401. When the starting device 200 is not inserted, the movement of the driving component 320 is restricted, so that the acquisition device 400 cannot extend, ensuring that the acquisition device 400 will not extend due to accidental contact and injure the human body, thus improving the safety performance of the device.

[0226] When the starting device 200 is inserted into the housing 100, the sliding member 312 is squeezed to move in opposite directions. At this time, the limiting part 3121B releases the movement restriction on the driving component 320, and the driving component 320 can drive the collection device 400 to extend from the collection port 401. The driving component 320 includes a driving shaft 321 connected to the collection device 400 and a driving elastic member 322 sleeved outside the driving shaft 321. When the sliding member 312 moves to the state where the limiting part 3121B is disengaged from the driving component 320, the sliding member 312 releases the movement restriction on the collection device 400. The driving elastic member 322 pushes the driving shaft 321 along the first direction and drives the collection device 400 to move out of the housing 100 through the collection port 401 to the collection position, pierce the barrier, and then enter the housing 100 through the collection port 401. In this embodiment, the first direction in which the collection device 400 extends is parallel to the direction in which the starting device 200 is inserted.

[0227] Example 12

[0228] like Figure 15As shown, to ensure the collection effect and timely recovery and storage of the collected blood or other liquids, it is necessary to transfer the liquid collected by the collection device 400 in a timely manner. To achieve this purpose, this application provides a first fluid channel 4021 and a second fluid channel 4022 connected to the collection port 401 inside the housing 100. The second fluid channel 4022 can be arranged in a serpentine shape inside the housing 100. The starting device 200 is connected to the collection port 401 through the second fluid channel 4022. After the starting device 200 is inserted into the locking component 310, the locking component 310 releases the movement restriction on the driving component 320, so that the driving component 320 drives the collection device 400 to extend out of the housing 100 through the collection port 401 and pierce the barrier. When the liquid inside the barrier enters the collection device 400 through the collection port 401, it will flow into the first fluid channel 4021 and the second fluid channel 4022 in a timely manner, and then flow into the starting device 200. The starting device 200 can store the collected liquid in a timely manner. When the starting device 200 is pulled out, the liquid stored inside can be transferred.

[0229] Optional, such as Figure 18 As shown, to ensure successful liquid collection from the barrier, this embodiment provides a specific structure of a starting device 200. The starting device 200 includes a negative pressure pipe 210, which has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure pipe 210 is connected to the collection port 401 via the second fluid channel 4022. Through the negative pressure suction in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022, thereby realizing the collection of liquid.

[0230] Example 13

[0231] Combination Figures 10A-10B As shown, this embodiment provides a specific structure of a collection device 400. The collection device 400 is at least partially housed within a housing 100, containing a second puncture component 411. The lower housing 100C has a blood collection component 412 at a position corresponding to the contact barrier 500, and a collection port 401 is opened in the blood collection component 412. The second puncture component 411 is movable relative to the blood collection component 412 and is used to puncture the barrier through the collection port 401. That is, when the activation device 200 is inserted into the housing 100, the drive component 320 can drive the second puncture component 411 to pass through the collection port 401 and puncture the barrier 500.

[0232] The blood collection assembly 412 includes a contact surface 4121 near the barrier 500. During collection, the contact surface 4121 is attached to the barrier. The contact surface 4121 is recessed in the direction away from the barrier to form a groove 4122. The groove 4122 includes a bottom wall 4122A opposite to the barrier and a surrounding wall 4122B extending from the bottom wall 4122A toward the barrier and connecting the contact surface 4121 and the bottom wall 4122A. The bottom wall 4122A has a central portion 4122C that protrudes towards the barrier and is spaced apart from the surrounding wall 4122B. The collection port 401 is arranged around the outer periphery of the central portion 4122C and is located between the surrounding wall 4122B and the central portion 4122C. A collection cavity is formed between the surrounding wall 4122B and the central portion 4122C. The collection port 401 is located in the collection cavity. When the second puncture component 411 punctures the barrier, it is convenient for the liquid to be drawn back into the blood collection device 400 more quickly, and enter the starting device 200 through the first fluid channel 4021 and the second fluid channel 4022.

[0233] The starting device 200 in this embodiment also includes a negative pressure pipe 210. The negative pressure pipe 210 has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure pipe 210 is connected to the collection port 401 through the second fluid channel 4022. Through the negative pressure suction in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022 to realize the collection of liquid.

[0234] Optionally, in other embodiments, other structures capable of achieving negative pressure suction can be used to replace the negative pressure tube 210 in this embodiment.

[0235] Example 14

[0236] like Figures 10A-10B and Figure 15 As shown, based on Embodiment 13, this embodiment provides a specific structure of the second puncture component 411. The second puncture component 411 includes at least one microneedle 411A, which can be a solid puncture needle. The microneedle 411A is used to puncture the barrier. The bottom wall 4122A has a through hole 4122D corresponding to the collection port 401, which is opened through the bottom wall 4122A. Figure 15 The through hole 4122D and the acquisition port 401 point to the same position.

[0237] The second puncture component 411 is movable relative to the blood collection component 412 and is used to puncture the barrier through the collection port 401. That is, when the activation device 200 is inserted into the housing 100, the drive component 320 can drive the microneedle 411A to pass through the through hole 4122D and puncture the barrier.

[0238] Example 15

[0239] like Figure 15 As shown, to ensure the collection effect, in this embodiment, the end of the second fluid channel 4022 away from the negative pressure pipe 210 extends into the receiving space and communicates with the collection port 401. The other end of the second fluid channel 4022 extends into the starting device 200. When the starting device 200 is inserted into the transmission device 300, the starting device 200 communicates with the receiving space and the collection port 401 through the second fluid channel 4022. Through the negative pressure suction in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the receiving space through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022, thereby realizing the collection of liquid.

[0240] Example 16

[0241] like Figure 15 As shown, this embodiment provides a more specific structural solution for the blood collection component 412 based on embodiment 15. In this solution, the blood collection component 412 includes a second base plate 412A and a first base plate 412B stacked along the movement direction of the second puncture component 411. That is, the blood collection component 412 has a double-wall structure, and the contact surface 4121 is located on the side of the second base plate 412A away from the first base plate 412B. Figure 8 As shown, the second base plate 412A forms a through hole, and the inner wall of the through hole forms a surrounding wall 4122B. That is, a groove 4122 is opened on the blood collection component 412, and the side wall of the groove 4122 is the surrounding wall 4122B. The bottom wall 4122A is located on the side of the first base plate 412B close to the second base plate 412A. The central part 4122C extends from the first base plate 412B toward the second base plate 412A and is located in the through hole and spaced apart from the surrounding wall.

[0242] Optionally, the blood collection assembly 412 includes an elastic sealing member (not shown), a first base plate 412B, and a second base plate 412A stacked along a first direction. The elastic sealing member (not shown) is disposed between the first base plate 412B and the housing 100 and is used for sealing. The first base plate 412B and the second base plate 412A are disposed outside the collection port 401 and connected to the housing 100. Optionally, the second base plate 412A is located outside the first base plate 412B. In this embodiment, the second fluid channel 4022 is opened in the first base plate 412B, and one end away from the center portion 4122C passes through the first base plate 412B and extends into the housing 100, and can communicate with the starting device 200.

[0243] Example 17

[0244] like Figures 10A-10BAs shown, in this embodiment, the blood collection component 412 includes a contact surface 4121 close to the barrier. During collection, the contact surface 4121 is attached to the barrier. The contact surface 4121 is recessed in the direction away from the barrier to form a groove 4122. The groove 4122 includes a bottom wall 4122A opposite to the barrier and a surrounding wall 4122B extending from the bottom wall 4122A toward the barrier and connecting the contact surface 4121 and the bottom wall 4122A. The bottom wall 4122A has a central portion 4122C protruding toward the barrier and spaced apart from the surrounding wall 4122B. The collection port 401 is arranged around the outer periphery of the central portion 4122C and located between the surrounding wall 4122B and the central portion 4122C. A collection cavity is formed between the surrounding wall 4122B and the central portion 4122C. The collection port 401 is located in the collection cavity. When the second puncture component 411 punctures the barrier, it facilitates the faster backflow of liquid into the blood collection device and into the collection device 400 through the flow channel.

[0245] To ensure better adhesion to the barrier, the end face of the central part 4122C away from the bottom wall 4122A is coplanar with the contact surface 4121. During collection, the end face of the central part 4122C away from the bottom wall 4122A is directly attached to the barrier, which facilitates more stable puncture by the second puncture component 411.

[0246] Example 18

[0247] like Figures 10A-10B As shown, this embodiment is a further supplement to embodiment 14. In this embodiment, the collection device 400 includes a second puncture component 411 and a blood collection component 412, which are at least partially housed within the housing 100. The collection port 401 penetrates the blood collection component 412. The second puncture component 411 is movable relative to the blood collection component 412 and is used to puncture the barrier through the collection port 401. That is, when the activation device 200 is inserted into the housing 100, the drive component 320 can drive the second puncture component 411 to pass through the collection port 401 and puncture the barrier 500. The blood collection assembly 412 includes a contact surface 4121 close to the barrier 500. During collection, the contact surface 4121 is attached to the barrier 500. The contact surface 4121 is recessed in the direction away from the barrier 500 to form a groove 4122. The groove 4122 includes a bottom wall 4122A opposite to the barrier and a surrounding wall 4122B extending from the bottom wall 4122A toward the barrier and connecting the contact surface 4121 and the bottom wall 4122A.

[0248] The bottom wall 4122A has a central portion 4122C that protrudes towards the barrier and is spaced apart from the surrounding wall 4122B. The collection port 401 is arranged around the outer periphery of the central portion 4122C and is located between the surrounding wall 4122B and the central portion 4122C. A collection cavity is formed between the surrounding wall 4122B and the central portion 4122C. The collection port 401 is located in the collection cavity. When the second puncture component 411 punctures the barrier, it is convenient for the liquid to be drawn back into the blood collection device more quickly and enter the collection device 400 through the flow channel.

[0249] The starting device 200 in this embodiment also includes a negative pressure pipe 210. The negative pressure pipe 210 has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure pipe 210 is connected to the collection port 401 through the second fluid channel 4022. Through the negative pressure suction in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022 to realize the collection of liquid.

[0250] The collection device 400 in this embodiment also includes a second puncturable seal 413 disposed at the collection port 401 and located inside the housing 100. The second puncturable seal 413 is connected to the second puncture assembly 411, and the second puncture assembly 411 extends through the second puncturable seal 413 and extends out of the housing under the action of the driving assembly. The second puncturable seal can move and deform with the second puncture assembly 411 during the collection process.

[0251] Furthermore, the second puncturable seal 413 includes a first sealing portion 413A fixed to the second puncture assembly 411, a second sealing portion 413C surrounding the first sealing portion 413A, and an elastically deformable portion 413B connected between the first sealing portion 413A and the second sealing portion 413C. The second puncture assembly 411 extends through the first sealing portion 413A toward the blood collection assembly 412. The orthographic projection of the second puncturable seal 413 on the blood collection assembly 412 covers the entire collection port 401, and the elastically deformable portion 413B can deform.

[0252] Optionally, in other embodiments, the elastic deformation portion 413B has a shape that gradually thickens toward the blood collection component 412, and the second sealing portion 413C extends toward the outside of the elastic deformation portion 413B.

[0253] Example 19

[0254] like Figures 10A-10B , Figure 13 , Figure 14 , Figure 20 as well as Figure 21As shown, this embodiment is a further improvement on embodiment 18. In this embodiment, the elastic deformation part 413B and the first sealing part 413A move with the second puncture assembly 411. When the starting device 200 is inserted into the locking assembly 310, the locking assembly 310 releases the movement restriction on the driving assembly 320, so that the driving assembly 320 drives the second puncture assembly 411 to extend out of the housing 100 through the collection port 401 and puncture the barrier. During this process, the first sealing part 413A will move synchronously with the second puncture assembly 411, and the elastic deformation part 413B will also be... Compression causes deformation, and as it moves, when the liquid inside the barrier enters the collection device 400 through the collection port 401, the elastic deformation part 413B will slide relative to the microneedle 411A toward the collection port 401 under atmospheric pressure and finally press against the through hole 4122D, thereby preventing the liquid from entering the containment space inside 413B. The liquid can only flow into the starting device 200 through the second fluid channel 4022. The starting device 200 can store the collected liquid in time. When the starting device 200 is pulled out, the liquid stored inside can be transferred.

[0255] Furthermore, such as Figure 13 As shown, in this embodiment, the second puncture assembly 411 further includes a needle holder 411B associated with the transmission device 300, and the microneedle 411A is fixed to the needle holder 411B. The first sealing portion 413A is fixed to the needle holder 411B, and the microneedle 411A extends through the first sealing portion 413A in a direction away from the needle holder 411B during assembly. Optionally, the first sealing portion 413A may also be spaced apart from the second puncture assembly 411, and when the microneedle 411A performs blood collection, it punctures the first sealing portion 413A and extends out of the housing.

[0256] Optionally, the needle holder 411B is cylindrical and has multiple mounting teeth on its upper ring. Each mounting tooth is provided with a corresponding microneedle 411A. The limiting part 3121B can abut against the other end of the needle holder 411B and restrict the movement of the needle holder 411B. When the starting device 200 is inserted into the housing 100, the limiting part 3121B can disengage from the needle holder 411B and release its limiting effect. At this time, under the action of the drive shaft 321 and the drive elastic member 322, the drive shaft 321 will drive the needle holder 411B to move in the first direction, thereby causing the microneedle 411A to move in the first direction and pass through the collection port 401 to exit the housing 100 and pierce the barrier 500.

[0257] Example 20

[0258] like Figures 10A-10BAs shown, this embodiment is a further supplement to embodiment 14. In this embodiment, the collection device 400 includes a second puncture component 411 and a blood collection component 412, which are at least partially housed within the housing 100. The second puncture component 411 is used to puncture the barrier, and the collection port 401 penetrates the blood collection component 412. The second puncture component 411 is movable relative to the blood collection component 412 and is used to puncture the barrier through the collection port 401. That is, when the starting device 200 is inserted into the housing 100, the driving component 320 can drive the second puncture component 411 to pass through the collection port 401 and puncture the barrier.

[0259] The blood collection assembly 412 includes a contact surface 4121 near the barrier. During collection, the contact surface 4121 is attached to the barrier. The contact surface 4121 is recessed in the direction away from the barrier to form a groove 4122. The groove 4122 includes a bottom wall 4122A opposite to the barrier and a surrounding wall 4122B extending from the bottom wall 4122A toward the barrier and connecting the contact surface 4121 and the bottom wall 4122A.

[0260] The bottom wall 4122A has a central portion 4122C protruding towards the barrier direction and spaced apart from the surrounding wall 4122B. The collection port 401 is arranged around the outer periphery of the central portion 4122C and located between the surrounding wall 4122B and the central portion 4122C. A collection cavity is formed between the surrounding wall 4122B and the central portion 4122C. The collection port 401 is located in the collection cavity. When the second puncture component 411 punctures the barrier, it is convenient for the liquid to be drawn back into the blood collection device more quickly and enter the collection device 400 through the flow channel, thereby reducing the wound area and reducing pain.

[0261] like Figure 9 and Figure 18 As shown, the starting device 200 in this embodiment includes a negative pressure pipe 210. The negative pressure pipe 210 has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure pipe 210 is connected to the collection port 401 through the second fluid channel 4022. Through the negative pressure suction in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022 to realize the collection of liquid.

[0262] In addition, the starting device 200 also includes a connector 220 detachably connected to the locking assembly 310 and a storage tube 230 extending from the connector 220. The negative pressure tube 210 is connected to the storage tube 230, the storage tube 230 is located between the connector 220 and the negative pressure tube 210, and the storage tube 230 is connected to the second fluid channel 4022 via the connector 220.

[0263] When the starting device 200 is inserted into the transmission device 300, the connector 220 will be inserted into the locking component 310. Through the negative pressure suction in the negative pressure tube 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the connector 220 through the second fluid channel 4022, and then further into the storage tube 230 to realize the collection of liquid.

[0264] The storage tube 230 is located between the connector 220 and the negative pressure tube 210. The storage tube 230 is connected to the second fluid channel 4022 via the connector 220. Under the negative pressure suction of the negative pressure tube 210, blood or other liquids can smoothly enter the storage tube 230. When the starting device 200 is pulled out, the connector 220 is disengaged from the locking component 310 and the installation port 402 of the storage tube 230 is blocked, thereby realizing the storage and transfer of blood or other liquids, which is convenient for further testing.

[0265] Example 21

[0266] like Figure 3 and Figure 9 As shown, this embodiment provides a solution for connecting the starting device 200 with the second fluid channel 4022. In this embodiment, the housing 100 has a first puncture component 102. One of the first puncture component 102 and the connector 220 includes a hollow tubular first puncture member 103 with openings at both ends, and the other includes a first puncturable seal 104 corresponding to the first puncture member 103. The first puncture member 103 is connected to the second fluid channel 4022. When the first puncture component 102 is connected to the connector 220, the first puncture member 103 punctures the first puncturable seal 104 and connects the storage tube 230 with the second fluid channel 4022.

[0267] This embodiment provides two solutions, solution one (as shown in the example). Figure 1 and Figure 7 As shown in the figure, in the first embodiment (not shown), the first puncture member 103 is disposed on the first puncture assembly 102 inside the housing 100, and the first punctureable seal 104 is disposed on the connector 220 of the starting device 200. In the second embodiment (not shown in the figure), the first punctureable seal 104 is disposed on the first puncture assembly 102 inside the housing 100, and the first puncture member 103 is disposed on the connector 220 of the starting device 200. Because the first puncture member 103 in this embodiment is a hollow tubular structure with openings at both ends, both embodiments can ensure that the second fluid channel 4022 is connected to the storage tube 230 when the connector 220 is connected to the first puncture assembly 102.

[0268] Example 22

[0269] This embodiment is a further improvement on embodiment 21. To ensure the safety of the first puncture component 103, such as... Figure 3 and Figure 9 As shown, in this embodiment, the first puncture component 103 is connected to the first puncture assembly 102. The first puncture component 103 is located inside the housing 100, which provides higher safety. The locking component 310 is disposed in the first puncture assembly 102. When the starting device 200 is inserted into the locking component 310, the connector 220 docks with the first puncture assembly 102. The first puncture component 103 punctures the first puncturable seal 104 and connects with the negative pressure tube 210, thereby connecting the storage tube 230 with the second fluid channel 4022.

[0270] When the starting device 200 is inserted into the transmission device 300, the negative pressure suction of the negative pressure tube 210 allows blood or other liquids to smoothly enter the storage tube 230. When the starting device 200 is pulled out, the connector 220 disengages from the first puncture component 102 and blocks the installation port 402 of the storage tube 230, thereby realizing the storage and transfer of blood or other liquids, which facilitates further testing.

[0271] Capillary tube 240 connects negative pressure tube 210 and storage tube 230, transmitting negative pressure and serving as a liquid volume metering and indicator. When liquid enters storage tube 230, as the liquid volume increases, when the liquid surface contacts the capillary tube, the liquid will not continue to fill storage tube 230, but will overflow from the capillary tube and flow into negative pressure tube 210, thus achieving liquid metering and providing an indicator function. The capillary tube is made of transparent material, generally hydrophobic plastic, such as PC or PET.

[0272] Example 23

[0273] like Figure 18 As shown, with the addition of capillary tube 240 in embodiment 22, this embodiment provides a specific arrangement of capillary tube 240. In this embodiment, storage tube 230 includes a first open end 231 corresponding to the connector 220 and a second open end 232 opposite to the first open end 231. A first sealing element 233 is sleeved inside the second open end 232. Capillary tube 240 passes through and is fixed to the first sealing element 233 and extends into storage tube 230 through the second open end 232. Storage tube 230 is connected to negative pressure tube 210 through capillary tube 240.

[0274] Example 24

[0275] like Figure 18As shown, this embodiment provides a preferred structure for a negative pressure tube 210, which is coaxially sleeved on the outside of a storage tube 230. The starting device 200 also includes a second sealing member 234 sandwiched between the outer wall of the storage tube 230 and the inner wall of the negative pressure tube 210, so that a vacuum space is formed between the inner wall of the negative pressure tube 210 and the outer wall of the storage tube 230. This vacuum space is connected to the storage tube 230 through a capillary tube 240. The arrangement of the first sealing member 233 and the second sealing member 234 can ensure that the negative pressure tube 210 and the storage tube 230 can only be connected through the capillary tube 240, thus ensuring the sealing performance of the device.

[0276] Example 25

[0277] like Figure 18 As shown, to facilitate the connection between the storage tube 230 and the negative pressure tube 210, a positioning part 235 is provided on the outer wall of the storage tube 230 in this embodiment. The positioning part 235 is used to position the installation position of the negative pressure tube 210 relative to the storage tube 230. Specifically, one end of the negative pressure tube 210 near the connector 220 abuts against the side of the positioning part 235 away from the first opening end 231. Part of the second sealing member 234 is sandwiched between the positioning part 235 and the negative pressure tube 210, and another part of the second sealing member 234 is sandwiched between the inner wall of the negative pressure tube 210 and the outer wall of the storage tube 230 to prevent the negative pressure tube 210 from communicating with the outside.

[0278] Example 26

[0279] Furthermore, such as Figure 18 and Figure 19 As shown, the connector 220 includes a first puncturable seal 104 that seals the first opening end 231, and a first puncture member 103 disposed on the first puncture assembly 102 inside the housing 100. When the starting device 200 is inserted into the housing 100, the connector 220 abuts against the first puncture assembly 102, and the first puncture member 103 punctures the first puncturable seal 104, connecting the storage tube 230 with the second fluid channel 4022. Then, through the action of the negative pressure tube 210, the liquid collected in the collection device 400 enters the storage tube 230 for storage through the second fluid channel 4022. When the starting device 200 is pulled out, the first puncturable seal 104 automatically seals the puncture opening to prevent liquid leakage.

[0280] Example 27

[0281] This embodiment is a further improvement based on embodiment 26, such as... Figure 18 and Figure 19As shown, in this embodiment, the first puncturable seal 104 includes a fixing part 220A located outside the first opening end 231 and having a size larger than the diameter of the storage tube 230, and a puncture part 220B extending from the fixing part 220A into the installation port 402 and matching the diameter of the storage tube 230. The fixing part 220A is used to fix the entire first puncturable seal 104 to the first opening end 231, so the size of the fixing part 220A needs to be larger than the diameter of the storage tube 230. The diameter of the puncture part 220B matches the diameter of the storage tube 230, so the puncture part 220B can be placed inside the storage tube 230. The fixing part 220A is fixed to the first opening end 231. When the starting device 200 is inserted into the housing 100, the connector 220 abuts against the first puncture assembly 102, and the first puncture member 103 punctures the puncture part 220B, so that the storage tube 230 is connected to the second fluid channel 4022.

[0282] Optionally, in this embodiment, the connector 220 further includes a crown 221 sleeved on the outer periphery of the fixing part 220A and extending to the outer periphery of the storage tube 230. The crown 221 can fix the fixing part 220A to a certain extent and prevent the fixing part 220A from detaching from the first opening end 231.

[0283] Optionally, the fixing part 220A has a relief groove 220C extending to the puncture part 220B. When the connector 220 is connected to the first puncture assembly 102, the first puncture member 103 punctures the puncture part 220B after passing through the relief groove 220C and communicates with the storage tube 230.

[0284] Optionally, the clearance groove 220C is a frustum-shaped groove, and its diameter gradually expands in the direction toward the first puncture component 102 to facilitate the insertion of the first puncture member 103.

[0285] Example 28

[0286] like Figures 10A-10B and Figure 17 As shown, this embodiment provides a device for collecting blood or other liquids, including a housing 100, a starting device 200, a transmission device 300, and a collection device 400. The housing 100 is provided with an installation port 402 and a collection port 401; the transmission device 300 is disposed in the housing 100, and at least a portion of the starting device 200 is disposed in the housing 100 and connected to the transmission device 300 via the installation port 402; at least a portion of the collection device 400 is disposed in the housing 100 and collects blood or other liquids using the collection port 401; the collection port 401 and the installation port 402 are not coaxially arranged.

[0287] In this case, the device housing 100 and the starting device 200 are set independently. Only when the starting device 200 is inserted into the housing 100 can the collection device 400 extend out of the housing 100 to collect data, thus avoiding accidental extension of the collection device 400 due to accidental contact, which could injure the human body.

[0288] In use, the starting device 200 is inserted into the mounting port 402. During the insertion process, the starting device 200 can drive the transmission movement, which in turn drives the collection device 400 to extend out of the housing through the transmission device 300 to collect blood or other liquids. In this solution, the collection port 401 and the mounting port 402 are not coaxial. If the collection port 401 and the mounting port 402 are coaxial, the entire device will be too long and thin along the direction of the collection channel, and the structural layout will be unreasonable. In this solution, they are set to be non-coaxial, preferably parallel, so that the overall device is flat and the structure is more optimized.

[0289] like Figures 10A-10B , Figure 11 and Figure 17 As shown, in a further embodiment, the housing 100 includes a lower housing 100C and an upper housing 100A, which are detachably mounted. Components such as the transmission device 300 and the acquisition device 400 inside the housing 100 are first installed on the lower housing 100C, and then the upper housing 100A is fastened to complete the installation of the housing 100. The acquisition port 401 is located on the lower housing 100C, and the installation port 402 is located on the upper housing 100A.

[0290] Furthermore, a more detailed supplement is made to the relative positions of the acquisition port 401 and the mounting port 402 in the previous embodiment. The projection of the outer contour of the acquisition port 401 on the upper housing 100A does not overlap with the mounting port 402. That is, the extension and retraction direction of the acquisition device 400 and the insertion direction of the starting device 200 are not coaxially set, which also has the effect of optimizing the structural layout of the device.

[0291] Optionally, the starting device 200 in this embodiment includes a negative pressure tube 210, which has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure tube 210 is connected to the collection opening 501 through the second fluid channel 4022.

[0292] In addition, the starting device 200 also includes a connector 220 detachably connected to the transmission device 300 and a storage tube 230 extending from the connector 220. The negative pressure tube 210 is connected to the storage tube 230. The storage tube 230 is located between the connector 220 and the negative pressure tube 210. The storage tube 230 is connected to the second fluid channel 4022 via the connector 220.

[0293] When the starting device 200 is inserted into the transmission device 300, the negative pressure in the negative pressure tube 210 draws the liquid from the subject's skin back into the collection device 400 through the collection opening 501, then into the connector 220 through the second fluid channel 4022, and further into the storage tube 230, thus collecting the liquid.

[0294] like Figure 3 As shown, the device for collecting blood or other liquids according to this solution includes a housing 100, an actuation device 200, a transmission device 300, and a collection device 400. The transmission device 300 includes a locking component 310 and a driving component 320 that cooperate with each other. The locking component 310 can lock and unlock the driving component 320. The driving component 320 is connected to the collection device 400 and is used to drive the collection device 400 to extend and retract. When the locking component 310 is in the unlocked state, it releases the restriction on the driving component 320, and the collection device 400 extends. Both the actuating device 300 and the data acquisition device 400 are housed within the housing 100. The actuating device 200 is independent of the housing 100 and is pluggably connected to the locking component 310. After the actuating device 200 is inserted, the locking component 310 releases the movement restriction on the driving component 320, allowing the driving component 320 to drive the data acquisition device 400 out of the housing 100. After the actuating device 200 is pulled out, the movement of the driving component 320 is restricted, preventing the data acquisition device 400 from extending. This ensures that the data acquisition device 400 will not extend due to accidental contact and injure the human body, thus improving the safety performance of the device.

[0295] In this solution, the starting device 200 is pluggably connected to the locking component 310. The collection device 400 can only extend when the starting device 200 is inserted into the locking component 310. The collection device 400 will not extend due to accidental touch or press, thus effectively solving the problem in the prior art that the blood collection device is prone to extending and injuring the human body due to accidental press or touch.

[0296] Furthermore, such as Figure 4 As shown, the locking component 310 includes a push block 311 and a slider 312. The push block 311 and the slider 312 are movably arranged relative to each other. The movement of the push block 311 itself can drive the slider 312 to move. In this embodiment, it is not limited how the push block 311 drives the slider 312 to move. The push block 311 can be set to directly contact and abut against the slider 312, or the slider 312 can be indirectly driven to move through a certain intermediary.

[0297] The push block 311 is configured to move along a first direction under the action of the starting device 200 and drive the sliding member 312. The sliding member 312 is configured to move along a second direction under the action of the push block 311 to restrict the movement of the collection device 400 in the first direction and release the restriction on the movement of the collection device 400. The sliding member 312 can restrict the movement of the collection device 400 in the first direction, which is the direction in which the collection device 400 pierces the barrier. When the sliding member 312 is in a certain locked position, it can restrict the movement of the collection device 400 in the first direction, that is, restrict the collection device 400 from extending. When the sliding member 312 moves along the second direction to another unlocked position under the action of the push block 311, it releases the restriction on the movement of the collection device 400 in the first direction, so that the collection device 400 can move along the first direction and extend out of the housing 100 to complete the collection action.

[0298] In this scheme, the slider 312 and the acquisition device 400 can be limited by a buckle-like structure. When the slider 312 moves to another unlocked position in the second direction under the action of the push block 311, the buckle separates, releasing the limitation on the drive component 320, so that it drives the acquisition device 400 to extend.

[0299] When the starting device 200 is inserted between the push blocks 311 and the push blocks 311 move along the first direction, the push blocks 311 will drive the slider 312 to move along the second direction, so as to restrict the movement of the acquisition device 400 in the first direction and release the restriction on the movement of the acquisition device 400. In this scheme, the first direction and the second direction are not collinear, which makes the layout of the entire device more reasonable and avoids being too slender.

[0300] Optionally, the slider 312 includes a first slider 3121 and a first deformable member 3122 located between the first slider 3121 and the inner wall of the housing 100. The first deformable member 3122 is connected to the first slider 3121 and is used to make the first slider 3121 reciprocate along the second direction. When the starting device 200 is inserted, it will drive the first slider 3121 to squeeze the first deformable member 3122 to compress it. When the starting device 200 is pulled out, the first deformable member 3122 will return to its original state and drive the first slider 3121 to reset, thereby limiting the drive assembly 320 again.

[0301] Optionally, in this embodiment, a pair of first sliders 3121 are symmetrically arranged on the outside of the push block 311. The first elastic element can be a spring. When the starting device 200 is inserted, the push block 311 will press the pair of first sliders 3121 on its outside in the second direction. Because the spring will be compressed, the first sliders 3121 will also move away from each other, thereby releasing the restriction on the drive component 320. Then the drive component 320 will drive the acquisition device 400 to extend out of the housing 100 in the first direction.

[0302] Furthermore, the sliding members 312 are symmetrically arranged on both sides of the acquisition device 400 along the second direction. Unlike the case where the sliding members 312 are only arranged on one side of the acquisition device 400, the sliding members 312 are symmetrically arranged on both sides of the acquisition device 400, which makes the structure more stable and the internal layout of the device more symmetrical and reasonable. The push block 311 is arranged between the two sliding members 312 and pushes the two sliding members 312 to move in opposite directions. The layout is reasonable, and the push block 311 drives the sliding members 312 to move synchronously to opposite sides, which is more stable than unilateral movement.

[0303] Furthermore, the structure of the first slider 3121 is further defined in more detail. The first slider 3121 has a main body 3121A and a limiting part 3121B. The main body 3121A is connected to the first deformable member 3122. The limiting part 3121B protrudes from the main body 3121A in the second direction. The limiting part 3121B is configured to at least partially stop the acquisition device 400 in the first direction after the starting device 200 is pulled out, and to release the stop on the acquisition device 400 after the starting device 200 is inserted. The limiting function of the acquisition device 400 is realized by the limiting part 3121B. Specifically, when the starting device 200 is not inserted, the acquisition device 400 is in a retracted state. When the starting device 200 is inserted, the limiting part 3121B releases the limiting function of the acquisition device 400, allowing the acquisition device 400 to extend.

[0304] Optionally, the limiting part 3121B is an inverted triangular block. Before the starting device 200 is inserted, the upper part of the inverted triangular block will abut against the driving component 320, preventing the driving component 320 from driving the acquisition device 400 to extend. After the starting device 200 is inserted, the inverted triangular block will separate from the acquisition device 400, thereby releasing the restriction on the driving component 320, allowing the driving component 320 to drive the acquisition device 400 to extend along the first direction and pierce the barrier.

[0305] Furthermore, such as Figure 4 As shown, this embodiment provides a more specific definition of the structure of the push block 311. The push block 311 has an insertion part 3111 and a pressing part 3112. The insertion part 3111 is used to insert into the starting device 200. The insertion part 3111 can be a groove-shaped structure that can accommodate the starting device 200. The pressing part 3112 protrudes from the outside of the insertion part 3111 and is used to press the sliding member 312 in the second direction. When the starting device 200 is inserted between the two push blocks 311, the pressing part 3112 will press the two sliding members 312 to move in opposite directions in the second direction, and cause the limiting part 3121B to disengage from the acquisition device 400, thereby releasing the limiting effect on the drive assembly 320.

[0306] Optionally, the cross-sectional area of ​​the extrusion part 3112 gradually decreases along the insertion direction of the starting device 200, which facilitates the insertion of the starting device 200.

[0307] In this embodiment, the extrusion part 3112 is narrow at the bottom and thick at the top. The narrower bottom end facilitates insertion between the insertion parts 3111, while the thicker top end is used to extrude the sliding member 312. Optionally, the extrusion part 3112 is an inverted right-angled triangle structure, and its hypotenuse extrudes the insertion part 3111, causing the insertion part 3111 to move and push the sliding member 312.

[0308] like Figure 4 and Figure 9 As shown, this embodiment further supplements the structure of the housing 100. The housing 100 is provided with a guide post 101; the insertion part 3111 includes an insertion section 3111A and a guide section 3111B. The insertion section 3111A is provided with an insertion groove 3111C. The guide section 3111B is sleeved on the guide post 101, which facilitates the installation of the guide section 3111B and avoids errors that affect accuracy. The pressing part 3112 is provided on the guide section 3111B. Specifically, the pressing part 3112 is connected to the guide section 3111B and is integrally formed on the outside of the guide section 3111B. It is used to press the sliding member 312. When the starting device 200 is inserted, the pressing part 3112 on the outside of the guide section 3111B presses the sliding member 312 in the second direction, so that the limiting part 3121B releases the limiting effect on the driving component 320, thereby allowing the acquisition device 400 to extend.

[0309] Furthermore, such as Figure 12 As shown, the slider 312 is further improved. The slider 312 is provided with a positioning member 3121C corresponding to the pressing part 3112. The positioning member 3121C has a receiving part 3121D that can accommodate the pressing part 3112 and is used to limit the movement of the pressing part 3112. When the starting device 200 is inserted, the pressing part 3112 will press the slider 312. When the pressing part 3112 moves to the lowest point, the pressing part 3112 can enter the receiving part 3121D and abut against the positioning member 3121C.

[0310] Furthermore, the drive assembly 320 is located between the acquisition device 400 and the inner wall of the housing 100, and is used to drive the acquisition device 400 to extend or retract from the housing 100. Specifically, when the starting device 200 is inserted into the housing 100, the sliding member 312 is squeezed to move in opposite directions. At this time, the limiting part 3121B on the sliding member 312 can release the movement restriction on the drive assembly 320, and the drive assembly 320 can drive the acquisition device 400 to extend. The drive assembly 320 includes a drive shaft 321 connected to the acquisition device 400 and a drive elastic member 322 sleeved outside the drive shaft 321. When the sliding member 312 moves to the state where the limiting part 3121B is disengaged from the drive assembly 320, the sliding member 312 releases the movement restriction on the acquisition device 400, and the drive elastic member 322 pushes the drive shaft 321 along the first direction and drives the acquisition device 400 to move out of the housing 100 to the acquisition position. In this embodiment, the first direction in which the acquisition device 400 extends is parallel to the direction in which the starting device 200 is inserted.

[0311] Furthermore, such as Figures 10A-10B As shown, in this embodiment, the driving assembly 320 includes a driving shaft 321 connected to the collection device 400 and a driving elastic member 322 sleeved on the driving shaft 321, as well as a reset mechanism 323. After the collection device 400 moves to the collection position, the reset mechanism 323 pushes the collection device 400 to move into the housing 100. The reset mechanism 323 separates from the driving elastic member 322. That is, the driving assembly 320 can drive the collection device 400 to extend to collect blood or other liquids, and can also drive the collection device 400 to retract after the collection is completed to ensure sampling safety.

[0312] Optionally, the reset mechanism 323 includes a bushing 3231 sleeved outside the drive shaft 321 and a reset elastic member 3232 connected to the bushing 3231. The drive shaft 321 passes through the bushing 3231 along a first direction and has a protrusion 321A protruding outward. That is, the drive shaft 321 is located inside the bushing 3231, and the bushing 3231 is located inside the reset elastic member 3232. After the acquisition device 400 moves to the acquisition position, the reset elastic member 3232 pushes the bushing 3231 and drives the drive shaft 321 and the acquisition device 400 to move into the housing 100 via the protrusion 321A.

[0313] Optionally, in other preferred embodiments, the bottom of the bushing 3231 extends inward to form an abutment portion 3233 that abuts against the protrusion 321A. When the reset elastic member 3232 resets and springs back, the abutment portion 3233 abuts against the protrusion 321A and drives the protrusion 321A to move in the direction of the reset elastic member 3232's springback, that is, drives the drive shaft 321 to move in the direction of the reset elastic member 3232's springback, thereby causing the acquisition device 400 to move into the housing 100.

[0314] Optionally, the end of the reset elastic element 3232 away from the acquisition device 400 is fixed to the bushing 3231, and the end of the reset elastic element 3232 close to the acquisition device 400 is movable relative to the housing 100 and relative to the bushing 3231 in the first direction.

[0315] Furthermore, the upper half of the bushing 3231 is provided with a fixing part 220A protruding outward. One end of the reset elastic member 3232 is fixed in the fixing part 220A, and the other end can be movably disposed relative to the bushing 3231 in the first direction. When the other end moves in the opposite direction of the first direction, it can drive the bushing 3231 to move in the same direction, and then drive the drive shaft 321 to move towards the inside of the housing 100 through the protrusion 321A, so that the acquisition device 400 retracts into the housing 100.

[0316] Furthermore, such as Figures 10A-10B As shown, this embodiment proposes a preferred choice for the driving elastic element 322 and the reset elastic element 3232. Both the driving elastic element 322 and the reset elastic element 3232 are pre-compressed springs. The pre-compressed spring can increase the load capacity of the spring. The reset elastic element 3232 is sleeved on the outer periphery of the bushing 3231. The elastic coefficient of the driving elastic element 322 is greater than that of the reset elastic element 3232. This allows the driving elastic element 322 to resist the elasticity of the reset elastic element 3232 after the limiting part 3121B releases the restriction on the acquisition device 400, and allows the acquisition device 400 to extend.

[0317] Furthermore, to better understand how the driving elastic element 322 works, this embodiment provides a feasible solution. In this embodiment, the driving assembly 320 also includes a top limiting mechanism 324 located at the end of the driving elastic element 322 away from the acquisition device 400. The top limiting mechanism 324 is used to pre-compress the driving elastic element 322, that is, the driving elastic element 322 is located between the protrusion 321A on the side wall of the driving shaft 321 and the top limiting mechanism 324. When the limiting part 3121B releases its limiting effect on the acquisition device 400, the driving shaft 321 will move along the first direction under the action of the driving elastic element 322, and drive the acquisition device 400 to extend out of the housing 100. When the top limiting mechanism 324 releases its pre-compressing effect on the driving elastic element 322, the driving elastic element 322 will move toward the direction of the top limiting mechanism 324.

[0318] Furthermore, this embodiment provides a specific implementation of the cooperation between the top limiting mechanism 324 and the drive shaft 321, which can be combined with other embodiments. In this embodiment, the top limiting mechanism 324 is provided with a clearance part 3241 corresponding to the drive shaft 321. The end of the drive shaft 321 away from the acquisition device 400 can pass through the clearance part 3241. The end of the drive shaft 321 away from the acquisition device 400 extends through the clearance part 3241 to the outside of the top limiting mechanism 324 and is spaced apart from the top limiting mechanism 324.

[0319] In some embodiments, the specific arrangement of the top limiting mechanism 324 is described in more detail. The top limiting mechanism 324 includes second sliders 3242 located on opposite sides of the drive shaft 321 and spaced apart from each other, and a pre-compression limiting elastic member 3243 connected between the two oppositely arranged second sliders 3242. The top sliders and the pre-compression limiting elastic member 3243 form a clearance portion 3241. A limiting groove 32421 is provided on the side of the second slider 3242 near the acquisition device 400. The limiting groove 32421 is used to engage with the bushing 3231. Specifically, the side of the bushing 3231 away from the acquisition device 400 engages with the limiting groove 32421 to restrict the movement of the two second sliders 3242. When the bushing 3231 moves along the first direction under the action of the drive elastic member 322, the bushing 3231 will disengage from the limiting groove 32421, thereby releasing the limiting effect on the two second sliders 3242.

[0320] When the acquisition device 400 moves to the acquisition position, the driving elastic element 322 drives the driving shaft 321 to move the bushing 3231 and disengage from the limiting groove 32421. The pre-pressing limiting elastic element 3243 drives the two second sliders 3242 to separate, and the gap of the clearance part 3241 increases. The end of the driving elastic element 322 away from the acquisition device 400 is released through the gap generated by the separation between the second sliders 3242. At this time, the reset elastic element 3232 pushes the bushing 3231 and drives the driving shaft 321 and the acquisition device 400 to move into the housing 100 through the protrusion 321A, so that the acquisition device 400 is reset.

[0321] Furthermore, this embodiment proposes a structure different from the top limiting mechanism 324 in embodiment 9. The top limiting mechanism 324 includes second sliders 3242 located on opposite sides of the drive shaft 321 and a pre-stretching limiting elastic member connected between the sliders and the housing 100. The second sliders 3242 are spaced apart to form clearance portions 3241.

[0322] In the initial state, the pre-stretched limiting elastic element is in an elongated and stretched state. The second slider 3242 has a limiting groove 32421 on the side near the acquisition device 400. The limiting groove 32421 is used to engage with the bushing 3231. Specifically, the side of the bushing 3231 away from the acquisition device 400 engages with the limiting groove 32421 to restrict the movement of the two second sliders 3242. When the bushing 3231 moves along the first direction under the action of the driving elastic element 322, the bushing 3231 will disengage from the limiting groove 32421, thereby releasing the limiting effect on the two second sliders 3242.

[0323] When the acquisition device 400 moves to the acquisition position, the driving elastic element 322 drives the driving shaft 321 to move the bushing 3231 and disengage from the limiting groove 32421. The pre-stretching limiting elastic element drives the two second sliders 3242 to separate, and the gap of the clearance part 3241 increases. The end of the driving elastic element 322 away from the acquisition device 400 is released through the gap generated by the separation between the second sliders 3242. At this time, the reset elastic element 3232 pushes the bushing 3231 and drives the driving shaft 321 and the acquisition device 400 to move into the housing 100 through the protrusion 321A, so that the acquisition device 400 is reset.

[0324] Furthermore, to ensure a more compact overall structure of the device, in this embodiment, the first direction is set to be perpendicular to the second direction, so that components such as the push block 311 and the sliding member 312 are symmetrically distributed within the housing 100, resulting in a more reasonable layout.

[0325] Optionally, the first direction is parallel to the direction in which the collecting device 400 pierces the barrier, and the second direction is parallel to the cross-section of the barrier surface, so as to ensure positive piercing of the barrier and ensure the collecting effect.

[0326] Furthermore, this embodiment makes further improvements to how the acquisition device 400 realizes the acquisition function. Specifically, an acquisition port 401 is provided on the side of the housing 100 near the acquisition device 400, and the transmission device 300 drives the acquisition device 400 to extend out of the housing 100 through the acquisition port 401 along the first direction.

[0327] After the starting device 200 is inserted, the locking component 310 releases the movement restriction on the driving component 320, so that the driving component 320 drives the acquisition device 400 to extend out of the housing 100 through the acquisition port 401. After the starting device 200 is pulled out, the movement of the driving component 320 is restricted, so that the acquisition device 400 cannot extend, ensuring that the acquisition device 400 will not extend due to accidental contact and injure the human body, thus improving the safety performance of the device.

[0328] When the starting device 200 is inserted into the housing 100, the sliding member 312 is squeezed to move in opposite directions. At this time, the limiting part 3121B releases the movement restriction on the driving component 320, and the driving component 320 can drive the collection device 400 to extend from the collection port 401. The driving component 320 includes a driving shaft 321 connected to the collection device 400 and a driving elastic member 322 sleeved outside the driving shaft 321. When the sliding member 312 moves to the state where the limiting part 3121B is disengaged from the driving component 320, the sliding member 312 releases the movement restriction on the collection device 400. The driving elastic member 322 pushes the driving shaft 321 along the first direction and drives the collection device 400 to move out of the housing 100 through the collection port 401 to the collection position, pierce the barrier, and then enter the housing 100 through the collection port 401. In this embodiment, the first direction in which the collection device 400 extends is parallel to the direction in which the starting device 200 is inserted.

[0329] Furthermore, to ensure the collection effect and to promptly recover and store the collected blood or other liquids, it is necessary to transfer the liquid collected by the collection device 400 in a timely manner. To achieve this purpose, this application provides a second fluid channel 4022 connected to the collection port 401 inside the housing 100. The flow channel can be arranged in a serpentine shape inside the housing 100. The starting device 200 is connected to the collection port 401 through the second fluid channel 4022. After the starting device 200 is inserted into the locking component 310, the locking component 310 releases the movement restriction on the driving component 320, so that the driving component 320 drives the collection device 400 to extend out of the housing 100 through the collection port 401 and pierce the barrier. When the liquid inside the barrier enters the collection device 400 through the collection port 401, it will flow into the starting device 200 in a timely manner through the second fluid channel 4022. The starting device 200 can store the collected liquid in a timely manner. When the starting device 200 is pulled out, the liquid stored inside can be transferred.

[0330] Optionally, to ensure successful liquid collection from the barrier, this embodiment provides a specific structure for a starting device 200. The starting device 200 includes a negative pressure pipe 210, which has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure pipe 210 is connected to the collection port 401 via the second fluid channel 4022. Through the negative pressure suction in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022, thereby realizing the collection of liquid.

[0331] Furthermore, this embodiment provides a specific structure of a collection device 400. The collection device 400 includes a housing 100 with a receiving space and a second piercing component 411 at least partially housed within the receiving space. The housing 100 includes a contact wall, and a collection port 401 penetrates the contact wall. The second piercing component 411 is movable relative to the contact wall and is used to pierce the barrier through the collection port 401. That is, when the activating device 200 is inserted into the housing 100, the driving component 320 can drive the second piercing component 411 to pass through the collection port 401 and pierce the barrier.

[0332] The contact wall includes a contact surface 4121 close to the barrier. During collection, the contact surface 4121 is attached to the barrier. The contact surface 4121 is recessed in the direction away from the barrier to form a groove 4122. The groove 4122 includes a bottom wall 4122A opposite to the barrier and a surrounding wall 4122B extending from the bottom wall 4122A toward the barrier and connecting the contact surface 4121 and the bottom wall 4122A.

[0333] The bottom wall 4122A has a central portion 4122C that protrudes towards the barrier and is spaced apart from the surrounding wall 4122B. The collection port 401 is arranged around the outer periphery of the central portion 4122C and is located between the surrounding wall 4122B and the central portion 4122C. A collection cavity is formed between the surrounding wall 4122B and the central portion 4122C. The collection port 401 is located in the collection cavity. When the second puncture component 411 punctures the barrier, it is convenient for the liquid to be drawn back into the blood collection device more quickly and enter the collection device 400 through the flow channel.

[0334] The starting device 200 in this embodiment also includes a negative pressure pipe 210. The negative pressure pipe 210 has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure pipe 210 is connected to the collection port 401 through the second fluid channel 4022. Through the negative pressure suction in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022 to realize the collection of liquid.

[0335] Optionally, in other embodiments, other structures capable of achieving negative pressure suction can be used to replace the negative pressure tube 210 in this embodiment.

[0336] Furthermore, this embodiment provides a specific structure of the second puncture component 411, which includes at least one microneedle 411A. The microneedle 411A can be a solid puncture needle. The microneedle 411A is used to puncture the barrier. The bottom wall 4122A has a through hole 4122D corresponding to the collection port 401, which is one-to-one with the at least one microneedle 411A.

[0337] The second puncture component 411 is movable relative to the contact wall and is used to puncture the barrier through the collection port 401. That is, when the activation device 200 is inserted into the housing 100, the drive component 320 can drive the microneedle 411A to pass through the through hole 4122D and puncture the barrier.

[0338] Furthermore, to ensure the collection effect, in this embodiment, the end of the second fluid channel 4022 away from the negative pressure pipe 210 extends into the receiving space and communicates with the collection port 401. The other end of the second fluid channel 4022 extends into the starting device 200. When the starting device 200 is inserted into the transmission device 300, the starting device 200 communicates with the receiving space and the collection port 401 through the second fluid channel 4022. Through the negative pressure suction in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the receiving space through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022, thereby realizing the collection of liquid.

[0339] Furthermore, a more specific solution is provided for the structure of the contact wall. In this solution, the contact wall includes a first contact wall and a second contact wall stacked along the movement direction of the second puncture component 411. That is, the contact wall is a double-layer wall structure. The contact surface 4121 is located on the side of the first contact wall away from the second contact wall. The first contact wall penetrates to form a surrounding wall 4122B. That is, a groove 4122 is opened on the first contact wall. The side wall of the groove 4122 is the surrounding wall 4122B. The bottom wall 4122A is located on the side of the second contact wall close to the first contact wall. The central part 4122C extends from the second contact wall toward the first contact wall.

[0340] Optionally, the first contact wall is located outside the second contact wall. In this embodiment, the second fluid channel 4022 is opened on the second contact wall, and one end away from the center portion 4122C passes through the second contact wall and extends into the housing 100, and can communicate with the starting device 200.

[0341] Furthermore, in this embodiment, the contact wall includes a contact surface 4121 close to the barrier. During collection, the contact surface 4121 is attached to the barrier, and the contact surface 4121 is recessed in the direction away from the barrier to form a groove 4122. The groove 4122 includes a bottom wall 4122A opposite to the barrier and a surrounding wall 4122B extending from the bottom wall 4122A toward the barrier and connecting the contact surface 4121 and the bottom wall 4122A. The bottom wall 4122A has a central portion 4122C protruding toward the barrier and spaced apart from the surrounding wall 4122B. The collection port 401 is arranged around the outer periphery of the central portion 4122C and located between the surrounding wall 4122B and the central portion 4122C. A collection cavity is formed between the surrounding wall 4122B and the central portion 4122C. The collection port 401 is located in the collection cavity. When the second puncture component 411 punctures the barrier, it facilitates the faster backflow of liquid into the blood collection device and into the collection device 400 through the flow channel.

[0342] To ensure better adhesion to the barrier, the end face of the central part 4122C away from the bottom wall 4122A is coplanar with the contact surface 4121. During collection, the end face of the central part 4122C away from the bottom wall 4122A is directly attached to the barrier, which facilitates more stable puncture by the second puncture component 411.

[0343] Furthermore, in this embodiment, the collection device 400 includes a housing 100 with a receiving space and a second piercing component 411 at least partially housed within the receiving space. The housing 100 includes a contact wall, and the collection port 401 penetrates the contact wall. The second piercing component 411 is movable relative to the contact wall and is used to pierce the barrier through the collection port 401. That is, when the activation device 200 is inserted into the housing 100, the drive component 320 can drive the second piercing component 411 to pass through the collection port 401 and pierce the barrier 500.

[0344] The contact wall includes a contact surface 4121 close to the barrier. During collection, the contact surface 4121 is attached to the barrier. The contact surface 4121 is recessed in the direction away from the barrier to form a groove 4122. The groove 4122 includes a bottom wall 4122A opposite to the barrier and a surrounding wall 4122B extending from the bottom wall 4122A toward the barrier and connecting the contact surface 4121 and the bottom wall 4122A.

[0345] The bottom wall 4122A has a central portion 4122C that protrudes towards the barrier 500 and is spaced apart from the surrounding wall 4122B. The collection port 401 is arranged around the outer periphery of the central portion 4122C and is located between the surrounding wall 4122B and the central portion 4122C. A collection cavity is formed between the surrounding wall 4122B and the central portion 4122C. The collection port 401 is located in the collection cavity. When the second puncture component 411 punctures the barrier 500, it facilitates the liquid to be drawn back into the blood collection device more quickly and enter the collection device 400 through the flow channel.

[0346] The starting device 200 in this embodiment also includes a negative pressure pipe 210. The negative pressure pipe 210 has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure pipe 210 is connected to the collection port 401 through the second fluid channel 4022. Through the negative pressure suction in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022 to realize the collection of liquid.

[0347] The starting device 200 in this embodiment also includes a flexible sealing element that covers the side of the contact wall away from the contact surface 4121 and is connected between the second puncture assembly 411 and the contact wall. The flexible sealing element can deform during the collection process.

[0348] The flexible seal includes a first sealing portion 413A fixed to the puncture assembly, a second sealing portion 413C surrounding the first sealing portion 413A, and a flexible sealing ring (elastic deformation portion 413B) connecting the central fixing portion (first sealing portion 413A) and the edge fixing portion (second sealing portion 413C). The second puncture assembly 411 extends through the central fixing portion toward the contact wall. The orthographic projection of the flexible seal on the contact wall covers the entire collection port 401. The flexible sealing ring can deform.

[0349] Optionally, in other embodiments, the flexible sealing ring has a shape that gradually thickens toward the contact wall, and the second sealing portion 413C extends toward the outside of the flexible sealing ring.

[0350] Furthermore, in this embodiment, the flexible sealing ring and the central fixing part move with the second puncture component 411. When the starting device 200 is inserted into the locking component 310, the locking component 310 releases the movement restriction on the driving component 320, so that the driving component 320 drives the second puncture component 411 to extend out of the housing 100 through the collection port 401 and puncture the barrier. During this process, the central fixing part moves synchronously with the second puncture component 411, and the flexible sealing ring is also compressed and deformed. With its movement, when the liquid in the barrier enters the collection device 400 through the collection port 401, the elastic deformation part 413B will slide relative to the microneedle 411A toward the collection port 401 under atmospheric pressure and finally press the through hole 4122D, thereby preventing the liquid from entering the containment space in 413B. The liquid can only flow into the starting device 200 through the second fluid channel 4022. The starting device 200 can store the collected liquid in time. When the starting device 200 is pulled out, the liquid stored inside can be transferred.

[0351] Furthermore, in this embodiment, the second puncture assembly 411 also includes a needle holder 411B associated with the transmission device 300, and the microneedle 411A is fixed to the needle holder 411B.

[0352] Optionally, the needle holder 411B is cylindrical and has multiple mounting teeth on its upper ring. Each mounting tooth is provided with a corresponding microneedle 411A. The limiting part 3121B can abut against the other end of the needle holder 411B and restrict the movement of the needle holder 411B. When the starting device 200 is inserted into the housing 100, the limiting part 3121B can disengage from the needle holder 411B and release its limiting effect. At this time, under the action of the drive shaft 321 and the drive elastic member 322, the drive shaft 321 will drive the needle holder 411B to move in the first direction, thereby causing the microneedle 411A to move in the first direction and pass through the through hole 4122D to exit the housing 100 and pierce the barrier.

[0353] Furthermore, in this embodiment, the collection device 400 includes a housing 100 with a receiving space and a second piercing component 411 at least partially housed within the receiving space. The second piercing component 411 is used to pierce the barrier. The housing 100 includes a contact wall, and the collection port 401 penetrates the contact wall. The second piercing component 411 is movable relative to the contact wall and is used to pierce the barrier through the collection port 401. That is, when the activation device 200 is inserted into the housing 100, the driving component 320 can drive the second piercing component 411 to pass through the collection port 401 and pierce the barrier.

[0354] The contact wall includes a contact surface 4121 close to the barrier. During collection, the contact surface 4121 is attached to the barrier. The contact surface 4121 is recessed in the direction away from the barrier to form a groove 4122. The groove 4122 includes a bottom wall 4122A opposite to the barrier and a surrounding wall 4122B extending from the bottom wall 4122A toward the barrier and connecting the contact surface 4121 and the bottom wall 4122A.

[0355] The bottom wall 4122A has a central portion 4122C that protrudes towards the barrier and is spaced apart from the surrounding wall 4122B. The collection port 401 is arranged around the outer periphery of the central portion 4122C and is located between the surrounding wall 4122B and the central portion 4122C. A collection cavity is formed between the surrounding wall 4122B and the central portion 4122C. The collection port 401 is located in the collection cavity. When the second puncture component 411 punctures the barrier, it is convenient for the liquid to be drawn back into the blood collection device more quickly and enter the collection device 400 through the flow channel.

[0356] The starting device 200 in this embodiment includes a negative pressure pipe 210. The negative pressure pipe 210 has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure pipe 210 is connected to the collection port 401 through the second fluid channel 4022. Through the negative pressure in the negative pressure pipe 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the starting device 200 through the second fluid channel 4022 to realize the collection of liquid.

[0357] In addition, the starting device 200 also includes a connector 220 detachably connected to the locking assembly 310 and a storage tube 230 extending from the connector 220. The negative pressure tube 210 is connected to the storage tube 230, the storage tube 230 is located between the connector 220 and the negative pressure tube 210, and the storage tube 230 is connected to the second fluid channel 4022 via the connector 220.

[0358] When the starting device 200 is inserted into the transmission device 300, the connector 220 will be inserted into the locking component 310. Through the negative pressure suction in the negative pressure tube 210, the liquid in the barrier can be drawn back into the collection device 400 through the collection port 401, and then flow into the connector 220 through the second fluid channel 4022, and then further into the storage tube 230 to realize the collection of liquid.

[0359] The storage tube 230 is located between the connector 220 and the negative pressure tube 210. The storage tube 230 is connected to the second fluid channel 4022 via the connector 220. Under the negative pressure suction of the negative pressure tube 210, blood or other liquids can smoothly enter the storage tube 230. When the starting device 200 is pulled out, the connector 220 is disengaged from the locking component 310 and the installation port 402 of the storage tube 230 is blocked, thereby realizing the storage and transfer of blood or other liquids, which is convenient for further testing.

[0360] Furthermore, this embodiment provides a scheme for connecting the starting device 200 with the second fluid channel 4022. In this embodiment, the housing 100 has a mounting part. One of the mounting part and the connector 220 includes a hollow tubular first puncture member 103 with openings at both ends, and the other includes a puncturable seal corresponding to the first puncture member 103. The first puncture member 103 is connected to the second fluid channel 4022. When the mounting part is connected to the connector 220, the first puncture member 103 punctures the puncturable seal and connects the storage tube 230 with the second fluid channel 4022.

[0361] This embodiment provides two solutions. Solution one involves placing the first puncture member 103 on the mounting portion inside the housing 100 and the puncturable seal on the connector 220 of the starting device 200. Solution two involves placing the puncturable seal on the mounting portion inside the housing 100 and the first puncture member 103 on the connector 220 of the starting device 200. Because the first puncture member 103 in this solution is a hollow tubular structure open at both ends, both solutions allow the second fluid channel 4022 to communicate with the storage tube 230 when the connector 220 is connected to the mounting portion.

[0362] Furthermore, to ensure the safety of the first puncture component 103, in this embodiment, the first puncture component 103 is connected to the mounting part. The first puncture component 103 is located inside the housing 100, which provides higher safety. The locking component 310 is provided in the mounting part, and when the starting device 200 is inserted into the locking component 310, the connector 220 docks with the mounting part. The first puncture component 103 can puncture the seal and connect with the negative pressure pipe 210, thereby connecting the storage pipe 230 with the second fluid channel 4022.

[0363] When the starting device 200 is inserted into the transmission device 300, the negative pressure suction of the negative pressure tube 210 allows blood or other liquids to smoothly enter the storage tube 230. When the starting device 200 is pulled out, the connector 220 is disengaged from the mounting part and the mounting port 402 of the storage tube 230 is blocked, thereby realizing the storage and transfer of blood or other liquids, which facilitates further testing.

[0364] Furthermore, this embodiment provides a specific arrangement of the capillary tube 240. In this embodiment, the storage tube 230 includes a first open end 231 corresponding to the connector 220 and a second open end 232 opposite to the first open end 231. A first sealing element 233 is sleeved inside the second open end 232. The capillary tube 240 passes through and is fixed to the first sealing element 233 and extends into the storage tube 230 through the second open end 232. The storage tube 230 is connected to the negative pressure tube 210 through the capillary tube 240.

[0365] Furthermore, this embodiment provides a preferred structure for the negative pressure tube 210, which is coaxially sleeved on the outside of the storage tube 230. The starting device 200 also includes a second sealing member 234 sandwiched between the outer wall of the storage tube 230 and the inner wall of the negative pressure tube 210, so that a vacuum space is formed between the inner wall of the negative pressure tube 210 and the outer wall of the storage tube 230. This vacuum space is connected to the storage tube 230 through the capillary tube 240. The arrangement of the first sealing member 233 and the second sealing member 234 can ensure that the negative pressure tube 210 and the storage tube 230 can only be connected through the capillary tube 240, thus ensuring the sealing performance of the device.

[0366] Furthermore, to facilitate the connection between the storage tube 230 and the negative pressure tube 210, a positioning part 235 is provided on the outer wall of the storage tube 230 in this embodiment. The positioning part 235 is used to position the installation position of the negative pressure tube 210 relative to the storage tube 230. Specifically, one end of the negative pressure tube 210 near the connector 220 abuts against the side of the positioning part 235 away from the first opening end 231. Part of the second sealing member 234 is sandwiched between the positioning part 235 and the negative pressure tube 210, and another part of the second sealing member 234 is sandwiched between the inner wall of the negative pressure tube 210 and the outer wall of the storage tube 230 to prevent the negative pressure tube 210 from communicating with the outside.

[0367] Furthermore, the connector 220 includes a puncturable seal that seals the first opening end 231. The first puncture member 103 is disposed on the mounting portion inside the housing 100. When the starting device 200 is inserted into the housing 100, causing the connector 220 to abut against the mounting portion, the first puncture member 103 will puncture the puncturable seal, connecting the storage tube 230 to the second fluid channel 4022. Then, through the action of the negative pressure tube 210, the liquid collected in the collection device 400 enters the storage tube 230 for storage via the second fluid channel 4022. When the starting device 200 is pulled out, the puncturable seal will automatically seal the puncture opening to prevent liquid leakage.

[0368] Furthermore, such as Figure 18 and Figure 19 As shown, in this embodiment, the puncturable seal includes a fixing part 220A located outside the first opening end 231 and having a size larger than the diameter of the storage tube 230, and a puncture part 220B extending from the fixing part 220A into the installation port 402 and matching the diameter of the storage tube 230. The fixing part 220A is used to fix the entire puncturable seal to the first opening end 231, so the size of the fixing part 220A needs to be larger than the diameter of the storage tube 230. The diameter of the puncture part 220B matches the diameter of the storage tube 230, so the puncture part 220B can be placed inside the storage tube 230. The fixing part 220A is fixed to the first opening end 231. When the starting device 200 is inserted into the housing 100, so that the connector 220 abuts against the installation part, the first puncture member 103 will puncture the puncture part 220B, so that the storage tube 230 is connected to the second fluid channel 4022.

[0369] Optionally, in this embodiment, the connector 220 further includes a crown 221 sleeved on the outer periphery of the fixing part 220A and extending to the outer periphery of the storage tube 230. The crown 221 can fix the fixing part 220A to a certain extent and prevent the fixing part 220A from detaching from the first opening end 231.

[0370] Optionally, the fixing part 220A has a relief groove 220C extending to the piercing part 220B. When the connector 220 is connected to the mounting part, the first piercing member 103 pierces the piercing part 220B after passing through the relief groove 220C and communicates with the storage tube 230.

[0371] Optionally, the clearance groove 220C is a frustum-shaped groove 4122, and its diameter gradually widens in the direction toward the mounting part to facilitate the insertion of the first piercing member 103.

[0372] Example 29

[0373] This embodiment provides a method for collecting blood or other fluids from a subject, comprising:

[0374] The housing 100 is applied to the subject's skin, with the collection port 401 on the housing 100 facing the corresponding collection site on the subject's skin. The housing 100 contains a collection device 400 that can extend and retract relative to the housing 100 and a transmission device 300 associated with the collection device 400. The transmission device 300 drives the collection device 400 to extend out of the housing 100 and pierce the subject's skin. The structure of the transmission device 300 can be referred to the relevant description in other embodiments.

[0375] In use, the activating device 200 is inserted into the transmission device 300 inside the housing 100 to drive the transmission device 300 to move. The transmission device 300 further drives the collection device 400 to extend out of the housing 100 along the first direction to pierce the subject's skin. Preferably, the extension direction of the collection device 400 is consistent with the insertion direction of the activating device 200.

[0376] Furthermore, the process of the transmission device 300 driving the acquisition device 400 to extend from the housing 100 along the first direction is further improved, specifically as follows:

[0377] The transmission device 300 includes a locking component 310 and a driving component 320. The driving component 320 is connected to the acquisition device 400. The starting device 200 is pluggably connected to the locking component 310. The starting device 200 can drive the locking component 310 to move. The locking component 310 can restrict or release the movement restriction on the driving component 320. When the locking component 310 is locked to the driving component 320, the driving component 320 cannot drive the acquisition device 400 to extend. When the starting device 200 is inserted into the locking component 310, the locking component 310 will move and release the restriction on the movement of the driving component 320. At this time, the driving component 320 can drive the acquisition device 400 to extend and pierce the subject's skin.

[0378] Specifically, the starting device 200 drives the locking component 310 to slide relative to the housing 100 in the second direction to release the movement restriction on the driving component 320; the locking component 310 drives the driving component 320, and the driving component 320 drives the acquisition device 400 to move outward from the housing 100 in the first direction, preferably perpendicular to the second direction.

[0379] Furthermore, the locking component 310 drives the driving component 320, including:

[0380] The locking component 310 moves from the first position to the second position along the second direction. The locking component 310 has a limiting part 3121B at one end near the driving component 320. By changing the positional relationship between the limiting part 3121B and the acquisition device 400, the movement of the acquisition device 400 can be restricted and unlocked. In the first position, that is, when the starting device 200 is not inserted, the limiting part 3121B is located on the movement path of the acquisition device 400 and limits at least part of the acquisition device 400 within the housing 100. That is, the limiting part 3121B can at least partially stop the acquisition device 400 on its movement path. In the second position, that is, after the starting device 200 is inserted, the starting device 200 can drive the locking component 310 to move, thereby causing the limiting part 3121B to disengage from the driving component 320 and releasing the acquisition device 400.

[0381] Furthermore, a feasible solution is proposed for the starting device 200 to drive the locking assembly 310 to slide relative to the housing 100 in the second direction, specifically as follows:

[0382] The locking component 310 includes a push block 311 and a slider 312. The slider 312 is movable relative to the push block 311, that is, the slider 312 can move under the action of the push block 311. The push block 311 is configured to move along a first direction and drive the slider 312 under the action of the starting device 200. The slider 312 is configured to move along a second direction under the action of the push block 311.

[0383] Specifically, when the starting device 200 is inserted into the locking component 310 in the first direction, the push block 311 will be driven to move synchronously with the starting device 200 in the first direction. At this time, the side wall of the push block 311 will press the sliding member 312 in the second direction, thereby causing the sliding member 312 to move in the second direction and causing the limiting part 3121B to disengage from the acquisition device 400, releasing the restriction on the movement of the acquisition device 400, and allowing the acquisition device 400 to extend.

[0384] Furthermore, more specific improvements are made to the process in which the locking component 310 drives the driving component 320, and the driving component 320 drives the acquisition device 400 to move outward from the housing 100 along the first direction, specifically including:

[0385] After the acquisition device 400 disengages from the limiting part 3121B, the limiting part 3121B releases its restriction on the movement of the acquisition device 400, which simultaneously releases its restriction on the movement of the drive assembly 320. The acquisition device 400 extends and retracts precisely because of the driving action of the drive assembly 320. When the restriction of the drive assembly 320 is released, the drive elastic element 322 in the drive assembly 320 pushes the drive shaft 321 associated with the acquisition device 400 to move, causing the acquisition device 400 to move out of the housing 100 and pierce the subject's skin.

[0386] Example 30

[0387] In this embodiment, further improvements were made to the repositioning of the collection device 400 after it punctures the skin.

[0388] In this embodiment, the drive assembly 320 further drives the drive shaft 321 and drives the bushing 3231 and the collection device 400, which are sleeved on the drive shaft 321, to move toward the skin to the blood collection position, compressing the reset elastic member 3232 sleeved on the bushing 3231.

[0389] The compressed reset elastic element 3232 drives the drive shaft 321 to move the collection device 400 from the blood collection position into the housing 100 to move away from the subject's skin.

[0390] When the starting device 200 is inserted into the locking component 310, the locking component 310 releases the restriction on the movement of the collection device 400, drives the drive shaft 321, and drives the bushing 3231 and the collection device 400, which are sleeved on the drive shaft 321, to move toward the skin to the blood collection position. During this process, the reset elastic element 3232, which is sleeved on the bushing 3231, is compressed. When the puncture is completed, the compressed reset elastic element 3232 can drive the shaft 321 to move toward its original position, and at the same time drive the drive shaft 321 inside the bushing 3231 to move synchronously. The collection device 400 is driven by the drive shaft 321 to move from the blood collection position toward the housing 100 to move away from the subject's skin.

[0391] Furthermore, in this embodiment, a collection port 401 is provided on the side of the housing 100 near the collection device 400. The collection port 401 is used for the collection device 400 to enter and exit. The transmission device 300 drives the collection device 400 to extend out of the housing 100 through the collection port 401 along the first direction.

[0392] Optionally, the starting device 200 in this embodiment includes a negative pressure tube 210, which has a pressure lower than atmospheric pressure. When the starting device 200 is inserted into the transmission device 300, the negative pressure tube 210 is connected to the collection port 401 through the second fluid channel 4022.

[0393] After the starting device 200 is inserted into the transmission device 300, the negative pressure tube 210 inside the starting device 200 is connected to the collection port 401. The pressure difference between the collection port 401 and the negative pressure tube 210 is used to draw the subject's skin into the collection port 401.

[0394] Blood or other fluids produced after the skin is punctured by the collection device 400 flow into the negative pressure tube 210 through the collection port 401.

[0395] Optionally, in other embodiments, the starting device 200 further includes a connector 220 detachably connected to the transmission device 300 and a storage tube 230 extending from the connector 220. The negative pressure tube 210 is connected to the storage tube 230, and the storage tube 230 is connected to the second fluid channel 4022 via the connector 220. That is, blood or other liquids generated after the skin is punctured by the collection device 400 flow into the storage tube 230 through the collection port 401 under the negative pressure suction of the negative pressure tube 210.

[0396] Example 31

[0397] This embodiment provides a microneedle driving mechanism for driving a microneedle 411A assembly that can extend and retract along a first direction. The mechanism includes: a housing 100; a drive shaft 321 housed within the housing 100 and connected to the microneedle 411A assembly, the drive shaft 321 driving the microneedle 411A assembly to extend and retract along the first direction; a drive elastic member 322 sleeved on the drive shaft 321, located between the inner wall of the housing 100 and the microneedle 411A assembly, for providing driving force; and a limiting portion 3121B positioned along the movement path of the microneedle 411A assembly, the limiting portion 3121B being driven relative to the microneedle 411A assembly by an external force. The housing 100 is movably configured, meaning that by changing the position of the limiting part 3121B, it can be limited to or detached from the movement path of the microneedle 411A component. The movement direction of the limiting part 3121B is not parallel to the first direction. Specifically, when the limiting part 3121B is limited to the movement path of the microneedle 411A component along the first direction, the limiting part 3121B can restrict the movement of the microneedle 411A component. When the limiting part 3121B is driven by an external force to move relative to the housing 100 in a direction different from the first direction, it can detach from the movement path of the microneedle 411A component.

[0398] Furthermore, such as Figure 3 As shown, the housing 100 is further improved. The housing 100 includes a hollow lower housing 100C supported on the side of the limiting part 3121B away from the drive shaft 321, and a hollow upper housing 100A fixed relative to the lower housing 100C and limited on the side of the drive shaft 321 away from the lower housing 100C. The arrangement of the upper housing 100A and the lower housing 100C can not only play a certain supporting and protective role, but also facilitate the arrangement of other components in the housing 100, thus optimizing the device layout.

[0399] Furthermore, the housing 100 also includes an annular support wall 100B that is clamped and fixed between the upper housing 100A and the lower housing 100C and surrounds the drive shaft 321 and the drive elastic member 322. The upper housing 100A, the annular support wall 100B and the lower housing 100C constitute the housing 100 of the entire device. The outer edge of the housing 100 is an annular structure with no rigid turning corners, making it easy to use by hand.

[0400] Furthermore, the limiting part 3121B is sandwiched between the annular support wall 100B and the lower housing 100C along the first direction, and the lower housing 100C is spaced apart from the limiting part 3121B along the movement direction of the limiting part 3121B. A gap is left between the lower housing 100C and the limiting part 3121B to avoid the need for other components.

[0401] In other embodiments, the housing 100 also includes a reset mechanism 323 located between the driving elastic element 322 and the annular support wall 100B. The reset mechanism 323 drives the acquisition device 400 to move toward the upper housing 100A, and the reset mechanism 323 separates from the driving elastic element 322.

[0402] Once the data collection is complete, the reset mechanism 323 is activated. The reset mechanism 323 can drive the data collection device 400 to move towards the upper housing 100A so that the microneedle 411A detaches from the subject's skin and enters the housing 100. During this process, the reset mechanism 323 will separate from the driving elastic element 322.

[0403] Furthermore, the microneedle 411A assembly includes a needle holder 411B and at least one microneedle 411A connected to the needle holder 411B. The drive shaft 321 drives the needle holder 411B to move, thereby causing the microneedle 411A to extend and retract.

[0404] Optionally, the needle holder 411B has a countersunk hole 411C along the first direction, and the end of the drive shaft 321 is provided with a snap-fit ​​part extending axially. The snap-fit ​​part can be inserted into and fixed in the countersunk hole 411C to fix the needle holder 411B and the end of the drive shaft 321.

[0405] like Figure 16 The snap-fit ​​part includes a snap-fit ​​body 321B connected to the drive shaft 321, and a shoulder 321C connected to the snap-fit ​​body 321B. The shoulder 321C can be close to or away from the central axis of the drive shaft 321. The countersunk hole 411C passes through the needle seat 411B in a first direction. The shoulder 321C can pass through the countersunk hole 411C and abut against the side of the needle seat 411B away from the drive shaft 321.

[0406] During installation, first pass the shoulder 321C through the countersunk hole 411C. The maximum distance of the outer edge of the shoulder 321C will be greater than the inner diameter of the countersunk hole 411C. Because the shoulder 321C can approach or move away from the central axis of the drive shaft 321, when passing through the countersunk hole 411C, the shoulder 321C can bend inward under the pressure of the side wall of the countersunk hole 411C, and its outer edge can be inserted into the countersunk hole 411C. When the shoulder 321C passes through the needle seat 411B, the side wall of the countersunk hole 411C no longer presses the outer edge of the shoulder 321C, and the shoulder 321C will return to its original shape and abut against the side of the needle seat 411B away from the drive shaft 321. At this time, the snap-fit ​​body 321B is fixed in the countersunk hole 411C.

[0407] Optionally, the snap-fit ​​part includes a pair of snap-fit ​​bodies 321B connected to the drive shaft 321. The two snap-fit ​​bodies 321B are arranged opposite to each other, and each of them is provided with a shoulder 321C. The shoulder 321C is an inverted right-angled triangle, and the side that abuts against the side wall of the countersunk hole 411C is the hypotenuse of the shoulder 321C, which facilitates its insertion into the countersunk hole 411C.

[0408] Optionally, the needle holder 411B has a slot 411D on the side away from the drive shaft 321 that can accommodate the shoulder of the clip. The slot 411D is recessed into the needle holder 411B. When the clip body 321B passes through the countersunk hole 411C, the shoulder 321C can be engaged in the slot 411D.

[0409] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A device for collecting blood, characterized in that, It includes a housing, a starting device, a transmission device, and a data acquisition device; The data acquisition device is housed within the casing; The transmission device is disposed in the housing. The transmission device includes a locking component and a driving component. The driving component is connected to the acquisition device. At least a portion of the starting device is pluggably connected to the locking component. The locking component is configured to restrict the movement of the driving component before the starting device is inserted and to release the movement restriction on the driving component after the starting device is inserted, so that the driving component can drive the acquisition device to extend out of the housing. The locking component includes a push block and a slider. The push block is movably connected to the slider. The push block is configured to move along a first direction and drive the slider under the action of the activation device. The slider is configured to move along a second direction under the action of the push block to restrict the movement of the collection device in the first direction and release the movement restriction on the collection device. The first direction is the direction in which the collection device pierces the barrier. The first direction and the second direction are not collinear.

2. The device for collecting blood according to claim 1, characterized in that, The slider includes a first slider and a first deformable member located between the first slider and the inner wall of the housing. The first deformable member is connected to the first slider and is used to cause the first slider to reciprocate along the second direction.

3. The device for collecting blood according to claim 1, characterized in that, The sliding members are symmetrically arranged on both sides of the acquisition device along the second direction, and the pusher is arranged between the two sliding members and pushes the two sliding members to move in opposite directions.

4. The device for collecting blood according to claim 2, characterized in that, The first slider has a main body and a limiting part. The main body is connected to the first deformable member. The limiting part protrudes from the main body along the second direction. The limiting part is configured to at least partially stop the acquisition device in the first direction after the starting device is pulled out, and to release the stop on the acquisition device after the starting device is inserted.

5. The device for collecting blood according to claim 1, characterized in that, The push block has a plug-in portion and a pressing portion. The plug-in portion is used to plug into the starting device, and the pressing portion protrudes from the outside of the plug-in portion and is used to press the slider in the second direction.

6. The device for collecting blood according to claim 5, characterized in that, The cross-sectional area of ​​the extrusion section gradually decreases along the insertion direction of the starting device.

7. The device for collecting blood according to claim 5, characterized in that, The housing is provided with guide posts; The insertion part includes an insertion section and a guide section. The insertion section is provided with an insertion groove. The guide section is sleeved on the guide post. The extrusion part is provided on the guide section.

8. The device for collecting blood according to claim 5, characterized in that, The sliding member is provided with a positioning member corresponding to the extrusion part, and the positioning member has a storage part that can accommodate the extrusion part.

9. The device for collecting blood according to claim 1, characterized in that, The driving assembly is located between the acquisition device and the inner wall of the housing. The driving assembly includes a driving shaft connected to the acquisition device and a driving elastic member sleeved outside the driving shaft. After the sliding member releases the movement restriction on the acquisition device, the driving elastic member pushes the driving shaft along the first direction and drives the acquisition device to move out of the housing to the acquisition position.

10. The device for collecting blood according to claim 9, characterized in that, The drive assembly further includes a reset mechanism, which is configured to push the acquisition device toward the housing after the acquisition device moves to the acquisition position, so as to reset the acquisition device.

11. The apparatus for collecting blood according to claim 10, characterized in that, The reset mechanism includes a bushing sleeved outside the drive shaft and a reset elastic member connected to the bushing sleeve. The drive shaft passes through the bushing sleeve along the first direction and has a protrusion protruding outward. After the acquisition device moves to the acquisition position, the reset elastic member pushes the bushing sleeve and drives the drive shaft and the acquisition device to move into the housing through the protrusion.

12. The apparatus for collecting blood according to claim 11, characterized in that, The end of the reset elastic member away from the acquisition device is fixed to the bushing, and the end of the reset elastic member close to the acquisition device is movable relative to the bushing along the first direction relative to the housing.

13. The apparatus for collecting blood according to claim 11, characterized in that, Both the driving elastic element and the reset elastic element are preloaded springs. The reset elastic element is sleeved on the outer circumference of the bushing, and the elastic coefficient of the driving elastic element is greater than that of the reset elastic element.

14. The apparatus for collecting blood according to claim 11, characterized in that, The driving assembly further includes a top limiting mechanism located at the end of the driving elastic member away from the acquisition device, the top limiting mechanism being used to pre-compress the driving elastic member and the reset elastic member.

15. The apparatus for collecting blood according to claim 14, characterized in that, The top limiting mechanism includes second sliders located on opposite sides of the drive shaft and limiting elastic members for driving the two second sliders to move relative to each other. At least two second sliders form a clearance portion. The end of the drive shaft away from the acquisition device extends through the clearance portion to the outside of the top limiting mechanism and is spaced apart from the top limiting mechanism.

16. The apparatus for collecting blood according to claim 15, characterized in that, The limiting elastic element is a pre-compression limiting elastic element connected between two opposing second sliders, with the two second sliders and the pre-compression limiting elastic element forming the clearance portion; or The limiting elastic element is a pre-stretched limiting elastic element connected between the slider and the housing, and the clearance portion is formed between the two second sliders.

17. The apparatus for collecting blood according to claim 15, characterized in that, The second slider has a limiting groove on the side near the acquisition device, and the limiting groove is used to engage with the bushing; When the acquisition device moves to the acquisition position, the driving elastic element drives the driving shaft to move the bushing and disengage from the limiting groove. The limiting elastic element drives the two second sliders to separate. The end of the driving elastic element away from the acquisition device is released through the gap generated by the separation between the second sliders. The reset elastic element pushes the bushing and drives the driving shaft and the acquisition device to move into the housing through the protrusion.

18. The apparatus for collecting blood according to any one of claims 1-17, characterized in that, The first direction is perpendicular to the second direction.

19. The apparatus for collecting blood according to claim 18, characterized in that, The housing is provided with an installation port and a collection port. The starting device is pluggably connected to the locking component via the installation port. The transmission device drives the collection device to extend out of the housing through the collection port along the first direction.

20. The apparatus for collecting blood according to claim 19, characterized in that, The housing is provided with a first fluid channel that communicates with the acquisition device, and the starting device is connected to the acquisition device through the first fluid channel.

21. The apparatus for collecting blood according to claim 19, characterized in that, The activation device includes an activation component and a first puncture component. The activation component is pluggably connected to the locking component. The first puncture component is pluggably connected to the activation component. The first puncture component is configured to puncture the activation component when the activation component is inserted into the locking component of the transmission device, so that the activation component is connected to the acquisition device via the first puncture component.

22. The apparatus for collecting blood according to claim 21, characterized in that, The activation component includes a connector, a storage tube extending from the connector, and a negative pressure tube communicating with the storage tube. The connector is used for pluggable connection with the locking component. The negative pressure tube has a pressure lower than atmospheric pressure. The storage tube is configured to communicate with the collection device via the first puncture component when the connector is inserted into the locking component, so as to store the blood collected by the collection device.

23. The apparatus for collecting blood according to claim 22, characterized in that, One of the first puncture assembly and the activation assembly includes a hollow tubular first puncture member with mounting ports at both ends, and the other includes a first puncturable seal corresponding to the first puncture member. The first puncture member is configured to puncture the first puncturable seal when the connector is inserted into the locking assembly, so as to connect the storage tube to the acquisition device.

24. The apparatus for collecting blood according to claim 23, characterized in that, The starting component also includes a capillary tube connected to the storage tube, and the storage tube is connected to the negative pressure tube via the capillary tube.

25. The apparatus for collecting blood according to claim 24, characterized in that, The storage tube includes a first open end corresponding to the connector and a second open end opposite to the first open end. A first sealing element is sleeved inside the second open end. The capillary tube passes through and is fixed to the first sealing element and extends into the storage tube through the second open end.

26. The apparatus for collecting blood according to claim 25, characterized in that, The negative pressure tube is coaxially sleeved on the outside of the storage tube, and the starting assembly also includes a second sealing element sandwiched between the outer wall of the storage tube and the inner wall of the negative pressure tube.

27. The apparatus for collecting blood according to claim 26, characterized in that, The outer wall of the storage tube is provided with a positioning part, and one end of the negative pressure tube near the connector abuts against the side of the positioning part away from the first opening end. Part of the second seal is sandwiched between the positioning part and the negative pressure tube.

28. The apparatus for collecting blood according to claim 27, characterized in that, The activation component includes a first puncturable seal that seals the first opening end. The first puncturable seal includes a fixing portion located outside the mounting port end and having a size larger than the diameter of the storage tube, and a puncture portion extending from the fixing portion into the mounting port end and matching the diameter of the storage tube.

29. The apparatus for collecting blood according to claim 28, characterized in that, The connector includes a cap that is fitted around the periphery of the fixing part and extends to the periphery of the storage tube.

30. The apparatus for collecting blood according to claim 28, characterized in that, The fixing part has an avoidance groove extending to the puncture part corresponding to the first punctureable seal. When the connector is inserted into the locking component, the first puncture member punctures the puncture part after passing through the avoidance groove and communicates with the storage tube.

31. The apparatus for collecting blood according to claim 19, characterized in that, The collection device includes a second puncture component, a second puncturable seal, and a blood collection component. At least a portion of the blood collection component is disposed at the collection port and located within the housing. The second puncturable seal is disposed between the housing and the blood collection component. The second puncture component is configured to extend out of the housing through the second puncturable seal under the action of the driving component.

32. The apparatus for collecting blood according to claim 31, characterized in that, The blood collection assembly includes a first base plate and a second base plate stacked along a first direction. The first base plate and the second base plate are disposed outside the collection port and connected to the housing. The first base plate and the second base plate together form a collection cavity, and the collection cavity is configured to have a pressure lower than atmospheric pressure inside when the starting device is inserted into the locking assembly, so as to collect blood.

33. The apparatus for collecting blood according to claim 32, characterized in that, The second puncturable seal includes a first sealing part, an elastically deformable part, and a second sealing part. The elastically deformable part is located between the first sealing part and the second sealing part. The first sealing part is configured to be punctured by the second puncturable seal, and the second sealing part is located at the collection port.

34. The apparatus for collecting blood according to claim 33, characterized in that, The elastic deformation part is initially formed as a hollow frustum-shaped structure.

35. The apparatus for collecting blood according to claim 33, characterized in that, The second puncture assembly includes a needle hub and at least one microneedle fixed to the needle hub, and the first base plate is provided with through holes corresponding one-to-one with the at least one microneedle.

36. The apparatus for collecting blood according to claim 35, characterized in that, The first base plate is also provided with a second fluid channel, which is connected to the collection chamber.

37. The apparatus for collecting blood according to claim 36, characterized in that, At least a portion of the fluid channel is formed as a wavy structure.

38. The apparatus for collecting blood according to claim 37, characterized in that, The second base plate is provided with a through hole, and the first base plate has a central part protruding in the direction of the through hole, the central part being disposed in the through hole and forming a gap with the through hole; The through hole is located at a position corresponding to the gap.

39. The apparatus for collecting blood according to claim 38, characterized in that, The surface of the central portion away from the first base plate is flush with the surface of the second base plate away from the first base plate.

40. The apparatus for collecting blood according to claim 39, characterized in that, The second base plate is also provided with an adhesive layer on its periphery, which is used to adhere the surface of the second base plate away from the first base plate to the skin.

Images