Conveying device

Abstract

The utility model provides a conveying device which is used for conveying fluid and comprises a containing body and a fluid valve. The accommodating body is provided with a storage cavity which has variable capacity and is used for storing fluid; the fluid valve comprises a valve body and a valve element which are connected, the valve body is connected with the containing body, the valve element is movably connected with the valve body, so that the fluid valve at least has a first state and a second state, in the first state, the fluid valve is used for circulating fluid, and in the second state, the fluid valve is used for stopping the fluid. When a doctor uses the conveying device to convey fluid to a living body, the possibility that the living body is infected is low.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a delivery device. Background Art

[0002] Computed tomography can detect the distribution of vascular contrast agents in a living body and generate images so that doctors can judge the physiological condition of the living body based on the images. The prior art uses a delivery device to deliver vascular contrast agents into the living body, and the vascular contrast agents can be carbon dioxide gas. However, in the prior art, the delivery device needs to be connected to a high-pressure gas source at the operating site, and the gas is delivered to the living body through temporary storage of the gas. It is difficult to strictly ensure a high degree of cleanliness at the operating site, and the pipe joint of the high-pressure gas source used at the operating site is a reusable joint. Therefore, when the delivery device is connected to the pipe joint of the high-pressure gas source, the gas is more likely to be contaminated, which poses a greater physiological risk to the living body, and the living body is prone to infection. Utility Model Content

[0003] The present application provides a delivery device. When a doctor uses the delivery device of the present application to deliver fluid to a living body, the possibility of the living body being infected is low.

[0004] The conveying device of the present application is used to convey fluid, and the conveying device includes a container and a fluid valve. The container has a storage cavity with a variable storage capacity and is used to store fluid; the fluid valve includes a valve body and a valve core connected to each other, the valve body is connected to the container, and the valve core is movably connected to the valve body, so that the fluid valve has at least a first state and a second state. In the first state, the fluid valve is used to circulate fluid, and in the second state, the fluid valve is used to cut off fluid.

[0005] The storage cavity of the container can store a fluid for delivery to the organism. The storage capacity of the storage cavity can be changed. When the storage capacity of the storage cavity increases, more fluid can be stored in the storage cavity. When the storage capacity of the storage cavity decreases, the fluid can be discharged from the storage cavity. The valve core of the fluid valve can move relative to the valve body so that the fluid valve has at least a first state and a second state. When the delivery device of the present application is produced, the fluid valve can be adjusted to the first state first, and the fluid in the fluid source can flow into the storage cavity through the valve body. As the storage capacity of the storage cavity increases, the amount of the stored fluid also increases. When the storage amount reaches the target value, the fluid valve is adjusted to the second state so that the fluid is stored in the storage cavity. After the delivery device of the present application is produced as a qualified medical device, it can be used in surgeries that require medical fluids, such as angiography. During the operation, the fluid valve can be adjusted to the first state, and the storage capacity of the storage cavity is reduced so that the fluid in the storage cavity can be delivered to the organism through the fluid valve. During surgery, the fluid valve can be connected to a guide pipe for circulating fluid, and the guide pipe is used to communicate with the body, that is, the fluid flowing out of the fluid valve can flow into the body through the guide pipe. In other surgeries, the fluid valve can be directly used to deliver fluid to the body. Compared with the delivery device of the prior art, the delivery device of the present application can store fluid in a clean environment in advance. The delivery device of the present application does not need to store fluid that may be contaminated from a reusable fluid source at the surgical site. The delivery device of the present application can deliver fluid with higher cleanliness to the body, and the possibility of infection of the body is lower. Secondly, during the operation, the user does not need to operate the valve core of the fluid valve to adjust the fluid valve from the state of cutting off the fluid to the state of circulating the fluid; there is no need for complex fluid delivery operations, and only the storage capacity in the storage chamber needs to be reduced. Therefore, the operation difficulty of the delivery device of the present application is low, and it can also save surgical time, and the user experience is high. Furthermore, the fluid stored in the delivery device of the present application can be normal pressure gas. When the delivery device of the present application delivers normal pressure gas to the organism, the organism has a high degree of acceptance of normal pressure gas, and the organism is less likely to experience physiological discomfort. Furthermore, since the delivery device of the present application does not require the use of a fluid source, the delivery device has good portability, and the user can adjust the appropriate amount of delivery device according to the required amount of fluid. Moreover, the delivery device has no connection constraints with the fluid source, has strong flexibility during operation, and provides a good user experience.

[0006] Optionally, the valve body is provided with an accommodating cavity, and the fluid valve also includes a docking piece arranged in the accommodating cavity, the docking piece is provided with a flow path, the flow path can be connected with the storage cavity, the docking piece is used to be sealed and connected with the pipe joint, the flow path is used to be connected with the pipe joint, and the pipe joint is used to circulate fluid.

[0007] Optionally, the accommodating cavity includes a docking cavity, the docking piece is located in the docking cavity, the docking cavity is in the shape of a frustum of cones, and the area of ​​the cross section of the docking cavity perpendicular to the axis gradually decreases along the direction from the accommodating cavity to the storage cavity; the docking piece can slide in the docking cavity, and the side wall of the docking piece can be sealed and connected with the side wall of the valve body used to enclose the docking cavity.

[0008] Optionally, the docking piece includes a first body and a first raised portion, the first body is provided with a flow path, the first body is used to be sealed and connected to the pipe joint, the side wall of the first body is protruded with the first raised portion, and the side wall of the valve body used to enclose the docking cavity is interference fit with the side wall of the first raised portion.

[0009] Optionally, the first body is in a conical shape, a flow cavity is provided in the first body, a flow hole is provided on the outer end surface of the first body, the flow hole is connected with the flow cavity to form a flow path, the outer end surface of the first body is used for sealing connection with the pipe joint, the valve core is located in the accommodating cavity, and the side wall of the first body used for enclosing the flow cavity can abut against the valve core and can drive the valve core to slide to a position where the fluid valve is in the first state.

[0010] Optionally, a docking hole is provided at one end of the docking piece for sealing connection with the pipe joint. The docking hole is part of the flow path and is in the shape of a frustum or a cylinder. The side wall of the docking piece used to enclose the docking hole is used for sealing connection with the pipe joint.

[0011] Optionally, the docking piece is provided with a cylindrical hole, the cylindrical hole is connected with the docking hole to form a flow path, the valve core is arranged in the accommodating cavity, the side wall of the docking piece used to enclose the cylindrical hole is connected to the valve core, and the docking piece can drive the valve core to slide to a position where the fluid valve is in the first state.

[0012] Optionally, the containing body includes a cylinder and a plug, the cylinder is connected to the fluid valve, a chamber connected to the valve body is arranged in the cylinder, the plug is arranged in the chamber, the plug is sealed and slidably connected to the side wall of the chamber, and the part of the chamber located between the valve body and the plug is a storage chamber; the conveying device also includes a driving member, which can be connected or abutted to a side of the plug facing away from the storage chamber.

[0013] Optionally, the drive member can slide relative to the cylinder into the chamber in stages.

[0014] Optionally, the conveying device further comprises a fluid guiding pipeline having a first inflow end connectable to the fluid valve and a first outflow end for discharging the fluid.

[0015] Optionally, the conveying device also includes an anti-error component connected to the diversion pipeline. Before discharging the fluid, the anti-error component is in a state of being connected to the diversion pipeline; after discharging part of the fluid, the anti-error component is triggered to a state of being disconnected from the diversion pipeline.

[0016] Optionally, the conveying device also includes a driving member, which is used to reduce the volume of the storage chamber. The diversion pipeline can be connected to the driving member through an anti-error member. The anti-error member includes a connected anti-error body and a displacement part. The driving member can be displaced and abutted with the displacement part and can drive the displacement part to displace, so that the anti-error member can be disconnected from the driving member, and / or so that the anti-error member can be disconnected from the diversion pipeline.

[0017] Optionally, the error-proofing component includes a first locking component and a second locking component, the first locking component is clamped with the second locking component, the first locking component and the second locking component can clamp the driving component and the guide pipeline; the first locking component can be disengaged from the second locking component.

[0018] Optionally, the first locking member or the second locking member includes a protrusion, and the protrusion is spaced apart from the containing body; the driving member can drive the protrusion to be squeezed with the containing body, so that the first locking member and the second locking member are released from the engagement.

[0019] Optionally, the error-proofing component also includes a first positioning component, the first locking component includes a first hook, the first locking component is provided with a third positioning notch, the second locking component includes a second hook, and the second locking component is provided with a fourth positioning notch, the third positioning notch can accommodate at least a portion of the second hook, and the fourth positioning notch can accommodate at least a portion of the first hook; one side of the first positioning component can abut against the first hook, and the other side of the first positioning component can abut against the second hook to limit the first hook from disengaging from the fourth positioning notch, and to limit the second hook from disengaging from the third positioning notch; the first positioning component is spaced apart from the accommodating body, and the driving component can drive the first positioning component to be squeezed against the accommodating body to drive the first positioning component to disengage from the first hook and the second hook.

[0020] Optionally, the first locking member includes a first hook, and the second locking member includes a second clamping body, a second positioning member and a first elastic member; the second positioning member is connected to the second clamping body through the first elastic member, and under the elastic force of the first elastic member, the second positioning member can be engaged with the first hook; the second positioning member is spaced apart from the accommodating body, and the driving member can drive the second positioning member to be squeezed with the accommodating body to drive the second positioning member to disengage from the first hook.

[0021] Optionally, the driving member includes a driving part, at least a portion of the edge of the driving part is inclined relative to a preset moving direction of the driving member, the anti-error part includes a second shell and a fifth positioning member that are slidably connected, the second shell is slidably connected to the driving member, when the fifth positioning member is in a first position relative to the second shell, the diversion pipeline is limited by the fifth positioning member, and when the fifth positioning member is in a second position relative to the second shell, the diversion pipeline can be detached from the fifth positioning member; the driving part can abut against the fifth positioning member, so that after the fifth positioning member can drive the second shell to abut against the containing body, the driving part can also drive the fifth positioning member to slide from the first position to the second position relative to the second shell.

[0022] Optionally, the fifth positioning member includes a first slider and a second slider that are separated, the second slider is located between the first slider and the driving portion, the second slider can be spaced apart from the first slider, and the second shell can be engaged with the first slider to limit the first slider to be in a first position relative to the second shell. In the first position, the diversion pipeline is limited by the first slider; the driving portion can push the second slider to slide toward the first slider so that the second slider releases the partial engagement between the first slider and the second shell, and makes the second slider abut against the first slider. The second slider can drive the first slider to slide to the second position relative to the second shell. In the second position, the diversion pipeline can be detached from the first slider.

[0023] Optionally, the error-proofing component includes a first shell, and the flow guide pipeline includes a sac tube with variable capacity. The sac tube and the first outflow end can be located in the first shell, and the sac tube has a second inflow end and a second outflow end. The second inflow end is used for the fluid flowing into the first inflow end, and the second outflow end is connected to the first outflow end. Under the pressure of the fluid, the sac tube can push the first outflow end to move from the inside of the first shell to the outside of the first shell.

[0024] Optionally, the error-proofing component also includes a third positioning component, which is located in the first shell body and connected to the outer wall of the first outflow end; the inner wall of the first shell body is provided with a first limiting portion, and the third positioning component can be engaged with the first limiting portion to limit the movement of the first outflow end located outside the first shell body relative to the first shell body; and / or, the inner wall of the first shell body is provided with a second limiting portion, and the third positioning component can be engaged with the second limiting portion to limit the movement of the first outflow end located inside the first shell body relative to the first shell body.

[0025] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a conveying device in one embodiment; Figure 2 for Figure 1 A cross-sectional view of the assembly structure of the central container, the fluid valve and the driving member; Figure 3 for Figure 2 A magnified view of part A; Figure 4 for Figure 3 A schematic structural diagram of a middle docking member in one embodiment; Figure 5 for Figure 4 a cross-sectional view of the middle docking piece; Figure 6 is a cross-sectional view of a docking member in another embodiment; Figure 7 It is a schematic structural diagram of a docking piece and a valve core in another embodiment; Figure 8 for Figure 3 Structural diagram of the middle valve stem; Fig. 9 is a cross-sectional view of the valve core; Fig.10is a cross-sectional view of a containing body in another embodiment; Fig.11 is a cross-sectional view of a container in yet another embodiment; Fig.12a is a schematic diagram of the structure of a rubber plug in one embodiment; Figure 12b is a schematic diagram of the structure of a rubber plug in another embodiment; Fig.13a is a schematic structural diagram of a driving member in one embodiment; Fig.13b is a schematic structural diagram of a driving member in another embodiment; Fig.13c is a schematic diagram of the assembly structure of the driving member and the sixth positioning member in a specific embodiment; Fig.13d for Fig.13c A schematic structural diagram of the sixth positioning member; Fig.13e is a schematic diagram of the assembly structure of the driving member and the sixth positioning member in another specific embodiment; Fig.13f for Fig.13e A schematic structural diagram of the sixth positioning member, wherein the positioning cover is not shown; Figure 13g for Fig.13e Schematic diagram of the explosion structure of the sixth positioning member; Fig.14 It is a schematic diagram of the structure of the error-proofing component in the first embodiment of the first category; Fig.15 for Fig.14 A magnified view of part B; Fig.16 for Fig.14 Enlarged view of part C; Fig.17 It is a schematic diagram of the structure of the error-proofing element in the second embodiment of the first category; Fig.18 is a schematic structural diagram of a fourth positioning member in an embodiment; Fig.19 It is a schematic diagram of the structure of the error-proofing element in the third embodiment of the first category; Fig. 20 for Fig.19 An exploded structural diagram of the second locking member; Fig.21 is a schematic structural diagram of a second locking member in an embodiment; Fig. 22 for Fig.21 A schematic diagram of the structure of the second locking member, wherein the cover plate is not shown; Fig.23a It is a schematic diagram of the assembly structure of the driving member and the error-proofing member in the first embodiment of the second category; Figure 23b It is a schematic diagram of the assembly structure of the driving member and the error-proofing member in the second embodiment of the second category; Fig.24 for Fig.23a The assembly cross-sectional view of the middle driving part and the error-proofing part;

[0027] Fig.25 for Fig.23a An assembly cross-sectional view of the middle driving member and the error-proofing member, wherein the fifth positioning member is not shown; Fig.26a for Fig.23a A schematic diagram of the structure of the middle driving component and the error-proofing component from another perspective; Figure 26b for Figure 23bA cross-sectional view of the middle driving member and the error-proofing member from another perspective; Fig.26c for Figure 26b Assembly cross-sectional view of the error-proofing component; Fig.26d It is a schematic diagram of the structure of the third type of error-proofing component of the second category; Fig.26e for Fig.26d Exploded diagram of local structure; Fig.27a for Fig.26a A schematic structural diagram of the fifth positioning member; Figure 27b for Figure 26b A schematic structural diagram of the fifth positioning member; Fig.28 It is a schematic diagram of the assembly structure of the flow guide pipeline and the error-proofing component in another embodiment; Fig.29a It is a schematic diagram of the assembly structure of the one-way valve, the bag tube, the first shell and the third positioning member, wherein the one-way valve is located in the first shell; Fig.29b It is a schematic diagram of the assembly structure of the one-way valve, the bag tube, the first shell and the third positioning member, wherein the one-way valve is located outside the first shell; Fig.30Schematic diagram of the assembly structure of the first inflow end and the connecting pipeline. Figure numerals: 10-transport device, 1-accommodating body, 11-cylinder, 111-chamber, 111a-storage chamber, 112-first docking end, 112a-insertion port, 12-rubber plug, 121-recessed hole, 121a-connecting column, 13-fourth positioning member, 131-convex column, 132-first through hole, 133-boss, 2-fluid valve, 21-valve body, 211-accommodating chamber, 211a-docking chamber, 211b-connecting chamber, 212-first step, 213-second docking end, 213a-circulation port, 22-docking member, 221-first body, 222-first protruding portion, 223-flow path, 223a-circulation chamber, 223b-circulation hole, 223c-docking hole, 22 3d-cylindrical hole, 23-valve core, 231-valve stem, 231a-first stopper, 231b-circulation groove, 232-first sealing ring, 24-third elastic member, 25-second sealing ring, 3-driving member, 31-connecting end, 311-groove, 311a-first section, 311b-second section, 32-push rod, 321-first notch, 322-driving part, 323-fifth limiter, 324-spiral slide groove, 4-flow guide pipeline, 41-first inflow end, 411-valve body, 411a-valve cavity, 412-insertion tube, 412a-cone side wall, 413-silicone tube, 413a-self-sealing end, 42-first outflow end, 43-connecting pipeline, 44-filter tube, 46-capsule tube, 461 -second inflow end, 462-second outflow end, 5-error-proofing part, 51-first locking part, 511-first clamping body, 511a-first clamping notch, 511b-second clamping notch, 511c-third limiting notch, 511d-thin wall, 512-first limiting protrusion, 512a-first limiting notch, 513-first hook, 52-second locking part, 521-second clamping body, 521a-second limiting notch, 521b-second limiting protrusion, 521c-third clamping notch, 521d-fourth clamping notch, 521e-fourth limiting notch, 521f-first recessed part, 521g-second recessed part, 521m-second step part, 521h-through hole, 521i -rotating shaft, 521j-first part, 521k-second part, 522-bump, 523-second hook, 524-second positioning member, 524a-clamping part, 524b-force bearing part, 524c-rotating part, 525-first elastic member, 526-pushing member, 526a-second stopper, 526b-rod body, 527-second elastic member, 528-cover plate, 53-first positioning member, 54-first torsion spring, 55-first shell, 551-first limiting part, 552-second limiting part, 56-third positioning member, 57-second shell, 57a-sleeve connection part, 57b-extension part, 571-sliding groove, 572-third limiting part, 573-second through hole, 574-second notch,575-fourth limiting part, 576-fifth notch, 577-fourth stopper, 578-bottom plate, 578a-sixth notch, 579-top plate, 579a-seventh notch, 58-fifth positioning member, 581-first slider, 581a-clamping claw, 581b-third notch, 581c-fourth notch, 582-second slider, 582a-wedge-shaped part, 583-third stopper, 6-sixth positioning member , 61-positioning ring, 611-moving part, 612-hollow part, 613-stop plate, 613a-chamfered part, 614-paddle, 615-fifth stop part, 62-positioning pin, 63-positioning shell, 631-fourth accommodating cavity, 632-third through hole, 633-sixth stop part, 634-opening, 635-eighth notch, 636-positioning curved side wall, 64-positioning cover, 65-fourth elastic member. ,

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0029] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below in conjunction with the accompanying drawings. It should be clear that the described embodiments are only a part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the attached claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should be understood that the term "and / or" used in this article is only an association relationship describing an associated object, indicating that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are an "or" relationship.

[0030] In response to the problems in the background technology, the first aspect of the embodiments of the present application provides a delivery device, which can be used in medical surgery to deliver medical fluids (gas or liquid) into a living body (such as a human or an animal), and the gas can be at least one of carbon dioxide, nitrogen, oxygen, nitrous oxide, and hydrogen. The delivery device of the embodiment of the present application can be used not only in angiography surgery, but also in surgery to implant medical devices in a living body. By delivering gas into the living body, the air of the living body is replaced outside the living body, and it can also be used to inject fluids into the non-vascular tissues of the living body. The subsequent content of this article mainly introduces the delivery device of the embodiment of the present application by taking the application in angiography surgery and the delivery fluid as carbon dioxide as an example.

[0031] Please refer to Figure 1-Figure 2 As shown, the delivery device 10 of the embodiment of the present application includes a container 1 (such as Figure 1-Figure 2 as shown) and fluid valve 2 (as shown Figure 3 Please refer to Figure 2 As shown, the container 1 has a storage chamber 111a with a variable storage capacity and used to store fluid. Figure 3 As shown, the fluid valve 2 includes a valve body 21 and a valve core 23 connected to each other. The valve body 21 is connected to the containing body 1, and the valve core 23 is movably connected to the valve body 21, so that the fluid valve 2 has at least a first state and a second state. In the first state, the fluid valve 2 is used to circulate fluid, and in the second state, the fluid valve 2 is used to cut off fluid.

[0032] In this embodiment, please refer to Figure 1-Figure 3As shown, the storage chamber 111a of the container 1 can store a fluid for delivery to a living body. The storage capacity of the storage chamber 111a can be changed. When the storage capacity of the storage chamber 111a increases, more fluid can be stored in the storage chamber 111a. When the storage capacity of the storage chamber 111a decreases, the fluid can be discharged from the storage chamber 111a. The valve core 23 of the fluid valve 2 can move relative to the valve body 21 so that the fluid valve 2 has at least a first state and a second state. When the delivery device 10 of the embodiment of the present application is produced, the fluid valve 2 can be adjusted to the first state first, and the fluid in the fluid source can flow into the storage chamber 111a through the valve body 21. As the storage capacity of the storage chamber 111a increases, the amount of the stored fluid also increases. When the storage amount reaches the target value, the fluid valve 2 is adjusted to the second state so that the fluid is stored in the storage chamber 111a. After the delivery device 10 of the embodiment of the present application is produced as a qualified medical device, it can be used in surgeries requiring medical fluids, such as angiography. During surgery, the fluid valve 2 can be adjusted to the first state, and the storage capacity of the storage chamber 111a is reduced, so that the fluid in the storage chamber 111a can be transported into the organism through the fluid valve 2. During surgery, the fluid valve 2 can be connected to a guide pipe for circulating fluid, and the guide pipe is used to communicate with the organism, that is, the fluid flowing out of the fluid valve 2 can flow into the organism through the guide pipe. In other surgeries, the fluid valve 2 can be used directly to transport fluid to the organism. Compared with the delivery device of the prior art, the delivery device 10 of the embodiment of the present application can store fluid in a clean environment in advance. The delivery device 10 of the embodiment of the present application does not need to store fluid that may be contaminated from a reusable fluid source at the surgical site. The delivery device 10 of the embodiment of the present application can transport fluid with higher cleanliness to the organism, and the possibility of infection in the organism is lower. Secondly, during the operation, the user does not need to perform complicated valve operations when using the delivery device 10 of the embodiment of the present application. The user only needs to operate the valve core 23 of the fluid valve 2 to adjust the fluid valve 2 from the state of cutting off the fluid to the state of circulating the fluid. There is no need for complicated fluid delivery operations. The user only needs to reduce the storage capacity in the storage chamber 111a. Therefore, the delivery device 10 of the embodiment of the present application has low operating difficulty, can save surgical time, and has a high user experience. Furthermore, the fluid stored in the delivery device 10 of the embodiment of the present application can be a normal pressure gas, such as carbon dioxide, nitrogen, and nitrous oxide, with a pressure of 0.01Mpa to 2Mpa; oxygen and hydrogen have a pressure of 0.1Mpa to 2Mpa. When delivering normal pressure gas to a living body, the living body has a high degree of acceptance of normal pressure gas, and the possibility of physiological discomfort in the living body is low.Furthermore, since the delivery device 10 of the embodiment of the present application does not require the use of a fluid source, the delivery device 10 has good portability. The user can adjust the appropriate amount of delivery device 10 according to the required amount of fluid. Moreover, the delivery device 10 has no connection constraints with the fluid source, has strong flexibility during operation, and provides a good user experience.

[0033] The gas pressure of oxygen and hydrogen can specifically be 0.1Mpa, 0.2Mpa, 0.3Mpa, 0.4Mpa, 0.5Mpa, 0.6Mpa, 0.7Mpa, 0.8Mpa, 0.9Mpa, 1Mpa, 1.1Mpa, 1.2Mpa, 1.3Mpa, 1.4Mpa, 1.5Mpa, 1.6Mpa, 1.7Mpa, 1.8Mpa, 1.9Mpa, and 2.0Mpa.

[0034] In addition, the structure of the valve core 23 can be a valve part that can control fluid (gas or liquid) such as a rod structure, a sheet structure, a ball structure, a columnar structure, etc. The movement of the valve core 23 can be linear movement, rotation or spiral movement.

[0035] Optionally, see Figure 3 As shown, the valve body 21 is provided with a accommodating chamber 211, and the fluid valve 2 also includes a docking piece 22 arranged in the accommodating chamber 211. The docking piece 22 is provided with a flow path 223, and the flow path 223 can be communicated with the storage chamber 111a. The docking piece 22 is used for sealing connection with the pipeline joint, and the flow path 223 is used for communicating with the inside of the pipeline joint, and the pipeline joint is used for circulating fluid.

[0036] In this embodiment, please refer to Figure 3 As shown, in the process of producing the conveying device 10 of the embodiment of the present application, the pipe joint of the fluid source (not shown in the figure) can be connected to the fluid valve 2. In detail, at least part of the pipe joint of the fluid source is inserted into the accommodating cavity 211 of the valve body 21, and the pipe joint of the fluid source is sealed and connected with the docking piece 22, and the pipe joint of the fluid source is connected with the flow path 223 of the docking piece 22, and the fluid of the fluid source can flow from the pipe joint of the fluid source to the flow path 223 of the docking piece 22. When the fluid valve 2 is in the first state, the fluid can flow from the flow path 223 into the storage cavity 111a, so that the fluid is stored in the storage cavity 111a. Since the pipe joint of the fluid source is sealed and connected with the docking piece 22, the possibility of external contaminants of the conveying device 10 entering the storage cavity 111a through the matching position between the pipe joint of the fluid source and the docking piece 22 is low. Therefore, the cleanliness of the fluid stored in the conveying device 10 of the embodiment of the present application is high, and after the conveying device 10 of the embodiment of the present application is used to convey the fluid into the organism, the possibility of the organism being infected is low. During surgery, a tube connector (such as a Figure 1At least a portion of the first inflow end 41 of the diversion pipeline 4 shown is inserted into the accommodating cavity 211 of the valve body 21, and at the same time, the pipe joint for conveying fluid to the organism is sealed and connected to the docking piece 22, and the pipe joint for conveying fluid to the organism is connected to the flow path 223 of the docking piece 22. When the fluid valve 2 is in the first state, the fluid can flow from the storage cavity 111a through the flow path 223 to the pipe joint for conveying fluid to the organism. Since the pipe joint for conveying fluid to the organism is sealed and connected to the docking piece 22, the possibility of external contaminants of the conveying device 10 entering the organism through the matching position between the pipe joint for conveying fluid to the organism and the docking piece 22 is low. Therefore, after the conveying device 10 of the embodiment of the present application is used to convey fluid to the organism, the possibility of the organism becoming infected is low.

[0037] The docking piece 22 may be elastic. When the docking piece 22 is connected to the pipe joint, the docking piece 22 is deformed by the extrusion force. This arrangement increases the effective sealing connection area between the docking piece 22 and the pipe joint, further improving the sealing connection effect between the docking piece 22 and the pipe joint.

[0038] In addition, the flow of the fluid between the flow path 223 and the storage chamber 111a may be through the accommodating chamber 211, or the flow of the fluid between the flow path 223 and the storage chamber 111a may be through the flow path provided in other parts of the fluid valve 2. The following content of this article first introduces the flow scheme through the accommodating chamber 211, and then introduces the flow scheme through the flow path provided in other parts of the fluid valve 2.

[0039] Optionally, see Figure 3 As shown, the accommodating cavity 211 includes a docking cavity 211a, and the docking member 22 is located in the docking cavity 211a. The docking cavity 211a is in a truncated cone shape. Figure 3 The cross-sectional area of ​​the dotted line (shown) gradually decreases along the direction from the accommodating cavity 211 to the storage cavity 111a. Under the action of external force, the docking piece 22 can slide in the docking cavity 211a, and the side wall of the docking piece 22 can be sealed and connected with the side wall of the valve body 21 for enclosing the docking cavity 211a.

[0040] In this embodiment, please refer to Figure 3 As shown, this scheme is a scheme in which the fluid flows between the flow path 223 and the storage chamber 111a via the accommodating chamber 211. When the docking member 22 is sealed and connected to the pipe joint of the fluid source, or when the docking member 22 is sealed and connected to the pipe joint for conveying fluid to a biological body, the pipe joint pushes the docking member 22 to move in the accommodating chamber 211 in the direction from the accommodating chamber 211 to the storage chamber 111a. Since the docking member 22 is located in the docking chamber 211a of the accommodating chamber 211, and the docking chamber 211a is perpendicular to the axis ( Figure 3The cross-sectional area of ​​the dotted line (shown in FIG. 1 ) gradually decreases along the direction from the receiving cavity 211 to the storage cavity 111a. During the sliding process of the docking member 22, the side wall of the docking member 22 gradually interferes with the side wall of the valve body 21 used to enclose the docking cavity 211a, thereby achieving a sealed connection. On the one hand, this setting can reduce the possibility of fluid leakage from the receiving cavity 211 to the outside of the fluid valve 2, which has the effect of saving fluid; on the other hand, this sealed connection setting also reduces the possibility of external contaminants of the conveying device 10 entering the receiving cavity 211 and the storage cavity 111a. Therefore, after the conveying device 10 of the embodiment of the present application is used to convey fluid to an organism, the possibility of the organism becoming infected is low.

[0041] The docking piece 22 may be elastic. When the docking piece 22 is connected to the pipe joint, the docking piece 22 deforms under the extrusion force. This arrangement increases the effective sealing connection area between the docking piece 22 and the side wall of the valve body 21 used to enclose the docking cavity 211a, further improving the sealing connection effect between the docking piece 22 and the side wall of the valve body 21 used to enclose the docking cavity 211a. In addition, please refer to Figure 3 As shown, the side wall of the valve body 21 for enclosing the docking cavity 211a and the axis of the docking cavity 211a (such as Figure 3 There is a set angle β between the dotted lines shown in the figure, and the angle β ranges from 0.5° to 5°. The angle β can specifically be 0.5°, 0.7°, 1°, 1.5°, 1.72°, 2°, 2.5°, 3°, 3.5°, 4°, 4.5°, or 5°.

[0042] The following content of this article describes the docking piece 22 of two embodiments. This article first describes the structure of the docking piece 22 of the first embodiment, and then describes the structure of the docking piece 22 of the second embodiment.

[0043] Optionally, see Figure 4 As shown, the docking piece 22 includes a first body 221 and a first protrusion 222 connected to each other. The first body 221 is provided with a flow path 223. The first body 221 is used for sealing connection with the pipe joint. The side wall of the first body 221 is protruded with the first protrusion 222. The side wall of the valve body 21 for enclosing and forming the docking cavity 211a is interference fit with the side wall of the first protrusion 222.

[0044] In this embodiment, please refer to Figure 4As shown, after the first body 221 of the docking member 22 is sealed and connected with the pipe joint, the fluid can flow between the flow path 223 provided in the first body 221 and the pipe joint. Before the first body 221 is sealed and connected with the pipe joint, the side wall of the first protrusion 222 of the docking member 22 is interference fit with the side wall of the valve body 21 used to enclose and form the docking cavity 211a, so that the docking member 22 is fixedly connected with the valve body 21, that is, the possibility of the docking member 22 detaching from the docking cavity 211a to the outside of the valve body 21 is low, and the docking member 22 can be stably in the position to be connected in the docking cavity 211a, that is, the success rate of the connection between the pipe joint and the first body 221 is high. The side wall of the first protrusion 222 of the docking member 22 is interference fit with the side wall of the valve body 21 used to enclose and form the docking cavity 211a, and the first protrusion 222 and the valve body 21 are already in a sealed connection state. During the process of connecting the first body 221 with the pipe joint, the pipe joint drives the first body 221 to move and also drives the first protrusion 222 to move, so that the interference fit between the first protrusion 222 and the valve body 21 is greater, the reliability of the sealing connection between the first protrusion 222 and the valve body 21 is higher, and the possibility of external contaminants of the conveying device 10 entering the storage cavity 111a or entering the organism is lower. Therefore, during the process of conveying fluid to the organism using the conveying device 10 of the embodiment of the present application, the possibility of the organism becoming infected is lower.

[0045] Among them, the docking piece 22 can be elastic. When the docking piece 22 is connected to the pipe joint, the first protrusion 222 of the docking piece 22 is deformed under the extrusion force. This setting further increases the sealing connection area between the first protrusion 222 and the side wall of the valve body 21 used to enclose the docking cavity 211a, thereby further improving the sealing connection effect.

[0046] Optionally, see Figure 3-Figure 5 As shown, the first body 221 is in a conical shape, a flow cavity 223a is provided in the first body 221, a flow hole 223b is provided on the outer end surface of the first body 221, the flow hole 223b is connected with the flow cavity 223a to form a flow path 223, and the outer end surface of the first body 221 is used for sealing connection with a pipe joint. The valve core 23 is located in the accommodating cavity 211, and under the action of external force, the side wall of the first body 221 used to enclose the flow cavity 223a can abut against the valve core 23 and can drive the valve core 23 to slide to a position where the fluid valve 2 is in the first state.

[0047] In this embodiment, please refer to Figure 3-Figure 5As shown, when the pipe joint is sealed and connected to the outer end face of the first body 221, the fluid can flow between the pipe joint and the circulation cavity 223a through the circulation hole 223b. In the process of sealing and connecting the pipe joint to the outer end face of the first body 221, the pipe joint drives the first body 221 to slide, so that the side wall of the first body 221 used to enclose and form the circulation cavity 223a can abut against the valve core 23, and the first body 221 drives the valve core 23 to slide, so that the fluid valve 2 is in the first state, that is, the fluid can flow between the circulation cavity 223a and the storage cavity 111a through the accommodating cavity 211. Therefore, the conveying device 10 of the embodiment of the present application can be connected with the docking piece 22 by the pipe joint, which can not only realize the sealing connection between the pipe joint and the docking piece 22 and the sealing connection between the docking piece 22 and the valve body 21, but also enable the docking piece 22 to switch from the second state to the first state, that is, the conveying device 10 of the embodiment of the present application is less difficult to operate and has a higher user experience. Among them, the docking piece 22 can be elastic. When the docking piece 22 is connected to the pipe joint, the docking piece 22 is deformed under the extrusion force. This setting increases the effective sealing connection area between the outer end face of the docking piece 22 and the pipe joint, further improving the sealing connection effect between the outer end face of the docking piece 22 and the pipe joint.

[0048] The structure of the docking member 22 of the second embodiment is described below.

[0049] Optionally, see Figure 6 As shown, a docking hole 223c is provided at one end of the docking piece 22 for sealing connection with the pipe joint. The docking hole 223c is a part of the flow path 223. The docking hole 223c is in a frustum shape. The side wall of the docking piece 22 for enclosing the docking hole 223c is used for sealing connection with the pipe joint.

[0050] In this embodiment, please refer to Figure 6 As shown, during the docking process between the pipe joint and the docking member 22, the pipe joint first abuts against the side wall of the docking member 22 used to enclose and form the docking hole 223c. When the docking hole 223c is in the shape of a truncated cone, the area of ​​the cross section of the docking hole 223c perpendicular to the axis gradually decreases as it goes deeper into the docking member 22. Therefore, under the guidance of the side wall of the docking member 22 used to enclose and form the docking hole 223c, the pipe joint has a high success rate of aligning the flow path 223 of the docking member 22, and the flow area between the flow path 223 and the pipe joint is large, so that the fluid can flow smoothly between the flow path 223 and the pipe joint. Secondly, the pipe joint and the side wall of the docking member 22 used to enclose and form the docking hole 223c can be interference fit, thereby achieving a sealed connection.

[0051] In other embodiments (not shown), the docking hole 223 may be cylindrical.

[0052] The docking piece 22 may be elastic. When the docking piece 22 is connected to the pipe joint, the docking piece 22 deforms under the extrusion force. This arrangement increases the effective sealing connection area between the side wall of the docking piece 22 used to enclose the docking hole 223c and the pipe joint, further improving the sealing connection effect between the side wall of the docking piece 22 used to enclose the docking hole 223c and the pipe joint. At the same time, the part of the outer wall of the docking piece 22 surrounding the docking hole 223c is also squeezed by the pipe joint to the side wall of the valve body 21 used to enclose the docking cavity 211a, that is, the effective sealing connection area between the outer wall of the docking piece 22 and the side wall of the valve body 21 used to enclose the docking cavity 211a is larger, further reducing the possibility of external contaminants of the conveying device 10 entering the storage cavity 111a or entering the biological body through the matching position between the side wall of the valve body 21 used to enclose the docking cavity 211a and the docking piece 22.

[0053] Optionally, see Figure 6 As shown, the docking member 22 is annular, and is further provided with a cylindrical hole 223d, which is connected with the docking hole 223c to form a flow path 223. The valve core 23 is located in the accommodating cavity 211, and the side wall of the docking member 22 for enclosing the cylindrical hole 223d is connected to the valve core 23. Under the action of external force, the docking member 22 can drive the valve core 23 to slide to a position where the fluid valve 2 is in the first state.

[0054] In this embodiment, please refer to Figure 6 As shown, when the pipe joint is sealed and connected with the side wall of the docking piece 22 for enclosing and forming the docking hole 223c, the fluid can flow between the pipe joint and the cylindrical hole 223d through the docking hole 223c. During the process of sealing and connecting the pipe joint and the side wall of the docking piece 22 for enclosing and forming the docking hole 223c, the pipe joint drives the docking piece 22 to slide, so that the side wall of the docking piece 22 for enclosing and forming the cylindrical hole 223d drives the valve core 23 to slide, so that the fluid valve 2 is in the first state, that is, the fluid can flow between the cylindrical hole 223d and the storage chamber 111a through the accommodating chamber 211. The conveying device 10 of the embodiment of the present application can not only realize the sealed connection between the pipe joint and the docking piece 22 and realize the sealed connection between the docking piece 22 and the valve body 21, but also enable the docking piece 22 to switch from the second state to the first state, that is, the conveying device 10 of the embodiment of the present application is less difficult to operate and has a higher user experience. In the above embodiment, please refer to Figure 3As shown, the fluid valve 2 further includes a third elastic member 24, the valve core 23 includes a valve stem 231 and a first sealing ring 232 connected to each other, the accommodating chamber 211 includes a connecting chamber 211b connected to the docking chamber 211a, one end of the connecting chamber 211b can be connected to the storage chamber 111a, and the other end of the connecting chamber 211b can be connected to the docking chamber 211a. At least part of the valve stem 231 is located in the docking chamber 211a, and at least another part of the valve stem 231 is located in the connecting chamber 211b. The portion of the valve stem 231 located in the docking cavity 211a is connected to the docking member 22, and the portion of the valve stem 231 located in the communication cavity 211b is connected to the side wall of the valve body 21 for enclosing and forming the communication cavity 211b through the third elastic member 24. Under the elastic force of the third elastic member 24, the first sealing ring 232 can abut against the side wall of the valve body 21 for enclosing and forming the communication cavity 211b, and separate the docking cavity 211a from the communication cavity 211b, so that the fluid valve 2 is in the second state. When the docking member 22 drives the valve stem 231 to overcome the elastic force of the third elastic member 24, the valve stem 231 drives the third elastic member 24 to move, so that the third elastic member 24 is separated from the side wall of the valve body 21 for enclosing and forming the communication cavity 211b, and the docking cavity 211a is communicated with the communication cavity 211b, so that the fluid valve 2 is in the first state. A first step portion 212 is provided at the connection position between the side wall of the valve body 21 for enclosing the docking cavity 211a and the side wall of the valve body 21 for enclosing the communication cavity 211b, and the third elastic member 24 can abut against the first step portion 212 to isolate the docking cavity 211a from the communication cavity 211b, so that the fluid valve 2 is in the second state. A first stopper 231a is provided on the side wall of the valve stem 231, and the first stopper 231a is used to abut against the first sealing ring 232, and the first stopper 231a can press the first sealing ring 232 against the first step portion 212.

[0055] Please refer to Figure 7-Figure 9 As shown, the side wall of the valve stem 231 is provided with a flow groove 231b for circulating the fluid, so that when the valve stem 231 is connected to the docking member 22, the fluid can flow between the flow path 223 provided on the docking member 22 and the flow groove 231b provided on the valve stem 231. When the fluid valve 2 is in the first state, the flow groove 231b can also be connected to the communication chamber 211b, thereby communicating with the storage chamber 111a.

[0056] In other embodiments (not shown in the figures), a flow path for circulating fluid may be provided inside the valve stem 231. When the fluid valve 2 is in a first state, the flow path inside the valve stem 231 may be directly connected to the storage chamber 111a without passing through the accommodating chamber 211. When the fluid valve 2 is in a second state, the flow path inside the valve stem 231 is blocked from the storage chamber 111a.

[0057] The following content of this article mainly introduces the fluid valve 2 by taking the example that the side wall of the valve stem 231 is provided with a circulation groove 231b for circulating fluid.

[0058] In summary, in a possible embodiment, please refer to Figure 3 As shown, when the fluid needs to enter the storage chamber 111a from the outside of the conveying device 10 or the fluid needs to flow out from the storage chamber 111a through the fluid valve 2, the pipe joint is connected to the valve body 21. In detail, at least part of the pipe joint is extended into the docking chamber 211a, and the pipe joint can be sealed with the docking member 22 and drive the docking member 22 to slide along the direction of the accommodating chamber 211 pointing to the storage chamber 111a. The docking member 22 drives the valve stem 231 to slide, so that the valve stem 231 drives the first sealing ring 232 to separate from the first step 212, so that the pipe joint, the flow path 223 of the docking member 22, the connecting chamber 211b of the accommodating chamber 211, and the storage chamber 111a are sequentially connected to form a passage, and the fluid can flow in the passage. In addition, the rest of the pipe joint can be snap-fitted or threadedly connected to the outer wall of the valve body 21, so that the pipe joint is fixedly connected to the valve body 21. When the pipe joint is separated from the valve body 21, the third elastic member 24 drives the valve stem 231 to slide along the direction from the storage chamber 111a to the accommodating chamber 211 under the elastic force of the third elastic member 24, so as to drive the first sealing ring 232 to abut against the first step 212, thereby isolating the docking chamber 211a from the connecting chamber 211b, and limiting the flow of fluid between the docking chamber 211a and the connecting chamber 211b. Figure 3As shown, the housing 1 includes a first docking end 112, in which an insertion port 112a communicating with the storage chamber 111a is provided, and the insertion port 112a is used to accommodate at least part of the valve body 21, and the valve body 21 includes a second docking end 213, in which a flow port 213a communicating with the housing chamber 211 is provided, and the flow port 213a is also communicated with the storage chamber 111a. In this embodiment, the first docking end 112 and the valve body 21 are bonded, and in other embodiments (not shown in the figure), the first docking end 112 and the valve body 21 are sealed and threaded or integrally formed. In addition, the end of the second docking end 213 facing the storage chamber 111a is located at the end of the insertion port 112a facing the storage chamber 111a, that is, the side wall of the first docking end 112 used to enclose the insertion port 112a at least abuts against the outer side wall of the second docking end 213, so as to reduce the storage capacity of the air that can be stored. The side wall of the first butt end 112 for enclosing and forming the insertion port 112a is provided with a step portion, and the step portion is used to abut against the step portion provided on the outer wall of the valve body 21 to limit the position of the valve body 21 relative to the first butt end 112. In this embodiment, the conveying device 10 also includes a second sealing ring 25 which is elastic and has a T-shaped cross section. A receiving space for accommodating at least part of the second sealing ring 25 is also provided between the side wall of the first butt end 112 for enclosing and forming the insertion port 112a and the outer wall of the valve body 21. When the outer wall of the valve body 21 is connected to the guide pipe 4, the second sealing ring 25 is squeezed by the guide pipe 4. The second sealing ring 25 can seal the connection position between the side wall of the first butt end 112 for enclosing and forming the insertion port 112a and the outer wall of the valve body 21. The compressed second sealing ring 25 also has an elastic force, which acts on the guide pipe 4, so that the threaded connection reliability between the guide pipe 4 and the outer wall of the valve body 21 is higher.

[0059] Optionally, see Figure 2 As shown, the containing body 1 includes a cylinder 11 and a plug 12. The cylinder 11 is connected to the valve body 21. The cylinder 11 is provided with a chamber 111 which is communicated with the valve body 21. The plug 12 is arranged in the chamber 111. The plug 12 is sealingly and slidingly connected to the side wall of the chamber 111. The portion of the chamber 111 located between the valve body 21 and the plug 12 is a storage chamber 111a.

[0060] In this embodiment, please refer to Figure 2 As shown, in the process of producing the delivery device 10 of the embodiment of the present application, the storage capacity of the storage chamber 111a is increased by moving the rubber plug 12, so that more fluid can be stored in the storage chamber 111a. During the operation, the user reduces the storage capacity of the storage chamber 111a by moving the rubber plug 12, so that the fluid is discharged from the storage chamber 111a. The operation difficulty of this structure is relatively low, and the user experience is good.

[0061] In other embodiments, please refer to Fig.10 As shown, the overall structure of the container 1 can be a flexible bag with an outlet, and a storage chamber 111a with a variable capacity is arranged in the flexible bag. In the process of producing the conveying device 10 of the embodiment of the present application, the air in the flexible bag can be completely removed by vacuum suction, and then the first docking end 112 can be flexibly deformed by external force, so that the insertion port 112a is temporarily closed to maintain the vacuum state of the storage chamber 111a. Then, in an environment full of fluid, the insertion port 112a and the circulation port 213a are cleaned by the fluid of the fluid source to remove the air at the connection position of the container 1 and the fluid valve 2, and then the first docking end 112 is connected to the fluid valve 2. Then, the force on the first docking end 112 is released so that the circulation port 213a is connected to the storage chamber 111a, and pure fluid can be injected into the storage chamber 111a. During the operation, the user can reduce the storage capacity of the storage chamber 111a by compressing the flexible bag to discharge the fluid from the storage chamber 111a. The side wall of the first docking end 112 for enclosing and forming the insertion port 112 a can be bonded to the fluid valve 2 .

[0062] In other embodiments, please refer to Fig.11 As shown, the overall structure of the container 1 can be a retractable tube structure with flexibility, and the storage capacity of the storage cavity 111a can be changed by the expansion and contraction of its own structure. Fig.11 The flow of fluid injection into the container 1 shown can be referred to above. Fig.10 The fluid injection process of the container 1 is not described here. The first docking end 112 is used to connect with the fluid valve 2, and the flow port 213a is connected with the storage chamber 111a. The side wall of the first docking end 112 used to enclose the insertion port 112a can be bonded with the fluid valve 2.

[0063] The following content of this article mainly describes the container 1 by taking the sliding plug structure composed of the cylinder 11 and the plug 12 as an example.

[0064] Optionally, see Figure 2 As shown, the conveying device 10 further includes a driving member 3, which can be connected to a side of the rubber plug 12 that is away from the storage chamber 111a. Fig.12a As shown, a concave hole 121 is provided on one side of the rubber plug 12 away from the storage cavity 111a, and a connecting column 121a extending in the radial direction is provided on the side wall of the rubber plug 12 for enclosing and forming the concave hole 121. Fig.13aAs shown, the driving member 3 includes a connecting end 31, and a groove 311 is provided on the side wall of the connecting end 31. The structure of the groove 311 is an L-shaped structure. The groove 311 includes a first section 311a and a second section 311b that are vertically connected. At least a portion of the connecting column 121a can move through the first section 311a to the second section 311b, thereby connecting the plug 12 to the driving member 3.

[0065] Optionally, see Figure 2 As shown, the delivery device 10 also includes a driving member 3, which can abut against the side of the rubber plug 12 away from the storage chamber 111a. Under this setting, the user can push the driving member 3 to move, and the driving member 3 drives the rubber plug 12 to move, so that the storage capacity of the storage chamber 111a is reduced, thereby discharging the fluid in the storage chamber 111a. When the user pulls back the driving member 3 due to misoperation, the driving member 3 is separated from the rubber plug 12, the rubber plug 12 is not driven by the driving member 3, the storage capacity of the storage chamber 111a remains unchanged, and the blood in the organism will not be drawn out by the delivery device 10 of the embodiment of the present application. Therefore, the delivery device 10 of the embodiment of the present application has reliable medical safety.

[0066] Please refer to Figure 12b As shown, a concave hole 121 is provided on one side of the rubber plug 12 away from the storage cavity 111a. Fig.13b As shown, the driving member 3 includes a connecting end 31. The end surface of the connecting end 31 can extend into the concave hole 121, and the end surface of the connecting end 31 can abut against the rubber plug 12.

[0067] The following content of this article mainly introduces the driving member 3 and the rubber plug 12 by taking the driving member 3 being able to abut against the rubber plug 12 as an example.

[0068] In other embodiments (not shown in the figure), the driving member 3 can be threadedly connected to the cylinder 11, and the user can operate the driving member 3 to spirally move to push the plug 12 to move, so that the storage capacity of the storage chamber 111a can be reduced. This setting has a labor-saving effect and can reduce the user's operating intensity.

[0069] Optionally, the driving member 3 can slide into the chamber 111 in stages relative to the barrel 11. Under this setting, the fluid is injected into the organism in batches, reducing the possibility that the user misoperates the delivery device 10, resulting in excessive fluid being delivered into the organism, that is, reducing the possibility of excessive injection causing physiological discomfort to the organism. The delivery device 10 also includes a sixth positioning member 6 connected to the driving member 3, and the sixth positioning member 6 can be used to achieve the effect of injecting gas in batches. This article includes two embodiments of the sixth positioning member 6.

[0070] Please refer to Fig.13cAs shown, the push rod 32 of the driving member 3 is provided with a spiral groove 324, and the push rod 32 is also provided with at least two fifth limiting portions 323 (recessed structure or blind hole structure) located in the spiral groove 324 and spaced apart. Fig.13d As shown, the sixth positioning member 6 includes a positioning ring 61 and a positioning pin 62 connected to each other, the push rod 32 is inserted into the positioning ring 61, the positioning ring 61 includes a protruding moving portion 611, the moving portion 611 and the spiral slide groove 324 are slidably matched, so that the positioning ring 61 can spirally move relative to the push rod 32 (the spiral movement is a composite movement of movement along the length direction of the push rod 32 and rotational movement around the axis of the push rod 32), and the positioning pin 62 can be engaged with the fifth limiting portion 323 to limit the movement of the positioning ring 61 relative to the push rod 32. The curved side wall of the positioning ring 61 can be provided with a hollow portion 612, which is connected to the moving portion 611, and the side wall of the positioning ring 61 used to enclose the hollow portion 612 is threadedly connected to the positioning pin 62, and the fifth limiting portion 323 protrudes from the hollow portion 612 and protrudes relative to the moving portion 611. The spiral chute 324 has a set helix angle γ, which satisfies 25°≤γ≤30°, wherein the helix angle γ can be specifically 25°, 26°, 28°, 29°, and 30°. When the helix angle γ is within the range of 25° to 30°, a self-locking effect can be achieved between the side wall of the push rod 32 used to enclose the spiral chute 324 and the moving part 611. Specifically, when the positioning ring 61 is subjected to a force along the length direction of the push rod 32, there is a large friction force between the side wall of the push rod 32 used to enclose the spiral chute 324 and the moving part 611, and the moving part 611 is difficult to slide in the spiral chute 324. Therefore, the self-locking effect can cooperate with the clamping effect of the positioning pin 62 to limit the movement of the positioning ring 61 relative to the push rod 32.

[0071] Please refer to Fig.13e As shown, the push rod 32 of the driving member 3 is provided with at least two fifth limiting portions 323 (notch structures or recessed structures) spaced apart along the length direction of the push rod 32. Fig.13e As shown, the sixth positioning member 6 also includes a positioning ring 61, a positioning shell 63, and a positioning cover 64 connected to each other. Figure 13f-13gAs shown, the positioning shell 63 is provided with a fourth accommodating cavity 631, the positioning cover 64 covers the positioning shell 63, the positioning ring 61 is located between the positioning shell 63 and the positioning cover 64, the positioning ring 61 includes a moving part 611 and a stopper 613 located in and connected to the fourth accommodating cavity 631, and the positioning ring 61 also includes a paddle 614 located outside the positioning cover 64, and the user can paddle the paddle 614 relative to the opening 634 provided in the positioning shell 63 to drive the moving part 611 to rotate relative to the positioning shell 63, thereby changing the position of the stopper 613 relative to the positioning shell 63. The stopper 613 can be rotated to a position engaged with the fifth limiting portion 323 to limit the movement of the sixth positioning member 6 relative to the push rod 32 along the length direction of the push rod 32; the stopper 613 can be rotated to a position separated from the fifth limiting portion 323, so that the sixth positioning member 6 can move relative to the push rod 32 along the length direction of the push rod 32. The stopper 613 is provided with a chamfered portion 613a, which can improve the success rate of the stopper 613 being engaged with the fifth limiter 323. The sixth positioning member 6 also includes a fourth elastic member 65, the positioning shell 63 includes a sixth stopper 633, the positioning ring 61 includes a fifth stopper 615 in a slope shape, one end of the fourth elastic member 65 is connected to the sixth stopper 633, and the other end of the fourth elastic member 65 is connected to the fifth stopper 615. When the user moves the paddle 614 to release the engagement between the stopper 613 and the fifth limiter 323, the fifth stopper 615 is driven to approach the sixth stopper 633, and the fourth elastic member 65 is compressed by the fifth stopper 615 and the sixth stopper 633; ​​when the user cancels the operation of the paddle 614, the resilience of the fourth elastic member 65 causes the fifth stopper 615 to move away from the sixth stopper 633, so that the stopper 613 is reset to a position where it can be engaged with the fifth limiter 323. The positioning shell 63 includes a positioning curved side wall 636, which can abut against the fifth stopper 615 to limit the excessive rotation of the moving part 611 relative to the positioning shell 63 when the stopper piece 613 is reset. The positioning shell 63 is provided with a third through hole 632 and an eighth notch 635 that are connected to each other. The third through hole 632 is used for the main body of the push rod to pass through, and the eighth notch 635 is used for the rib plate of the push rod 32 to pass through.

[0072] According to the above two embodiments of the sixth positioning member 6, the user can position the sixth positioning member 6 at at least two different positions relative to the push rod 32. When the user pushes the push rod 32 to perform an injection operation, the sixth positioning member 6 can abut against the container 1 or the foolproof member 5 to limit the movement of the push rod 32, thereby limiting the injection volume. The user can operate the sixth positioning member 6 to position it at another position relative to the push rod 32 so that the sixth positioning member 6 does not have a positioning function. The user can continue to push the push rod 32 to perform an injection operation, and the sixth positioning member 6 will abut against the container 1 or the foolproof member 5 again to limit the movement of the push rod 32, thereby limiting the injection volume. The above arrangement allows the gas to be injected into the organism in batches.

[0073] The user can hold the container 1 with one hand and push the push rod 32 with the other hand. The thumb of the hand holding the container 1 can be used to operate the sixth positioning member 6. This arrangement makes the operation of the conveying device 10 less difficult.

[0074] Optionally, see Figure 1 As shown, the conveying device 10 further comprises a fluid guiding pipeline 4 , wherein the fluid guiding pipeline 4 has a first inflow end 41 and a first outflow end 42 which can be connected to the fluid valve 2 and the first inflow end 41 is used to discharge the fluid.

[0075] In this embodiment, please refer to Figure 1 As shown, during the operation, the first inflow end 41 of the guide pipe 4 can be connected to the fluid valve 2, and the first outflow end 42 can be connected to the reserved tube (not shown in the figure) inserted into the body, so as to form a passage for conveying fluid. The user can discharge the fluid in the storage chamber 111a into the first inflow end 41 through the fluid valve 2, and the fluid in the first inflow end 41 can be discharged into the body through the first outflow end 42 and the reserved tube. Figure 1 As shown, the first inflow end 41 can be a Luer activation valve (also known as a Luer valve or a Luer connector), which is a standardized micro-impermeable connector. When the Luer activation valve is not connected to the fluid valve 2, the Luer activation valve can block air from entering itself and keep the flow guide line 4 in a closed state. When the Luer activation valve is connected to the fluid valve 2, the Luer activation valve can be activated to the first state, and accordingly, the fluid valve 2 can be activated to the first state (the relevant principles have been described above and will not be repeated here).

[0076] Please refer to Fig.30As shown, the first inflow end 41 includes a valve body 411, a cannula 412 and a silicone tube 413. The valve body 411 is provided with a valve cavity 411a, the cannula 412 includes a conical side wall 412a, and the silicone tube 413 includes a self-sealing end 413a. The self-sealing end 413a is provided with a notch (not shown in the figure), which can be pierced; if the notch is not pierced, the resilience of the self-sealing end 413a can keep the notch closed. A portion of the cannula 412 is located in the valve cavity 411a and is slidably connected to the valve body 411, and the silicone tube 413 is arranged in the valve cavity 411a. When the valve body 411 is connected to the valve body 21 so that the end of the insert tube 412 facing away from the valve body 411 is docked with the docking piece 22, the insert tube 412 is forced to slide toward the silicone tube 413, and the conical side wall 412a of the insert tube 412 is inserted into the notch of the self-sealing end 413a of the silicone tube 413, so that the fluid can flow from the fluid valve 2 through the insert tube 412 into the silicone tube 413, and then flow from the silicone tube 413 through the valve cavity 411a into the connecting pipeline 43 connected to the valve body 411. When the valve body 411 is separated from the valve body 21, the resilience of the self-sealing end 413a of the silicone tube 413 acts on the conical side wall 412a of the cannula 412 to eject the cannula 412 from the notch of the self-sealing end 413a, and the resilience of the self-sealing end 413a closes the notch, that is, the self-sealing end 413a self-seals again, which can prevent air or impurities from entering the connecting pipeline 43 through the silicone tube 413. Under this setting, the user can connect at least two fluid valves 2 connected to the first body 1 to the first inflow end 41 in sequence to inject a required volume of fluid into the organism.

[0077] In other embodiments (not shown in the figure), the first inflow end 41 may also be a vacuum cut-off device (also known as a sterile disconnector). When the vacuum cut-off device is not connected to the fluid valve 2, the vacuum cut-off device can block air from entering itself and keep the guide pipe 4 in a closed state. When the vacuum cut-off device is connected to the fluid valve 2, the vacuum cut-off device can be activated to the first state, and accordingly, the fluid valve 2 can be activated to the first state (the relevant principles have been described above and will not be repeated here). In other embodiments (not shown in the figure), the first inflow end 41 may also be a switch valve, which is in a flowing state or a closed state by manually operating the switch valve. In addition, the first outflow end 42 may be a one-way valve so that the fluid can only be discharged from the first outflow end 42 to the outside of the guide pipe 4 and cannot enter the guide pipe 4 from the first outflow end 42. In other embodiments (not shown in the figure), the first outflow end 42 may also be a switch valve, which is in a flowing state or a closed state by manually operating the switch valve. Of course, in other embodiments (not shown in the figure), the first outflow end 42 may also be a valve for pipeline connection such as a three-way valve, a safety valve or a regulating valve.

[0078] The following content of this article mainly introduces the first inflow end 41 by taking the Luer-activated valve as an example, and introduces the first outflow end 42 by taking the one-way valve as an example.

[0079] Optionally, see Figure 1 As shown, the conveying device 10 also includes an anti-error component 5 connected to the guide pipeline 4. Before the fluid is discharged, the anti-error component 5 is in a state of being connected to the guide pipeline 4, that is, the anti-error component 5 is used to limit the first outflow end 42 of the guide pipeline 4 to move to a position that can be connected to the joint of the receiving pipeline. Among them, the receiving pipeline is a pipeline for receiving the fluid in the guide pipeline 4, and the receiving pipeline can be a reserved tube inserted into the body (not shown in the figure). After part of the fluid is discharged, the anti-error component 5 is triggered to a state of being disconnected from the guide pipeline 4, that is, the anti-error component 5 is triggered to a state where the restriction effect of the anti-error component 5 on the first outflow end 42 can be released.

[0080] In this embodiment, please refer to Figure 1 As shown, during the operation, there is a certain amount of air in the guide tube 4 of the delivery device 10, rather than the pure medical fluid required by the organism, so the user needs to first release a portion of the fluid in the storage chamber 111a, so that the air in the guide tube 4 is discharged to the outside of the delivery device 10, and the fluid in the guide tube 4 is the pure medical fluid required by the organism. In this embodiment, the error-proofing component 5 is connected to the guide tube 4, and the error-proofing component 5 has a limiting effect on the guide tube 4. Only when the user discharges a portion of the fluid in the storage chamber 111a and uses the fluid to exhaust the air in the guide tube 4, the error-proofing component 5 can be triggered to a state where the limiting effect of the error-proofing component 5 on the first outflow end 42 can be released, and the user can connect the first outflow end 42 to the connector of the receiving tube, and continue to discharge the remaining fluid in the storage chamber 111a into the organism. Therefore, the delivery device 10 of the embodiment of the present application has an error-proofing effect, reducing the possibility that the user will discharge the air in the diversion pipeline 4 into the body due to misoperation, that is, the delivery device 10 of the embodiment of the present application has reliable medical safety.

[0081] Among them, the error-proofing component 5 can be connected to the first outflow end 42, and the error-proofing component 5 can limit the connection between the first outflow end 42 and the joint of the receiving pipeline. Of course, the error-proofing component 5 can also be connected to other parts in the diversion pipeline 4. The following content of this article mainly describes the connection between the error-proofing component 5 and the first outflow end 42 as an example.

[0082] The error-proofing component 5 of the embodiment of the present application has three types of structures. This article first introduces the structure of the first type of error-proofing component 5, and then introduces the structure of the second type of error-proofing component 5 and the structure of the third type of error-proofing component 5 in turn.

[0083] Please refer to Figure 1As shown, the driving member 3 is connected to the guide pipe 4 through the anti-error member 5. The anti-error member 5 includes an anti-error body and a displacement part that are connected. The driving member 3 can be displaced and abutted with the displacement part and can drive the displacement part to make the anti-error member 5 disconnected from the driving member 3.

[0084] In this embodiment, please refer to Figure 1 As shown, during the operation, the driving member 3 is connected to the guiding pipeline 4 through the error-proofing member 5 to limit the movement of the first outflow end 42 to a position where it can be connected to the connector of the receiving pipeline. The user needs to use the driving member 3 to reduce the storage capacity of the storage chamber 111a so that part of the fluid in the storage chamber 111a is discharged, and the air in the guiding pipeline 4 is discharged to the outside of the conveying device 10 by using the fluid, and the guiding pipeline 4 is filled with the pure medical fluid required by the organism. After that, the driving member 3 can be displaced and abutted against the displacement portion and can drive the displacement portion to move, so that the anti-error member 5 is triggered to a state where it can be disconnected from the driving member 3, that is, the anti-error member 5 is triggered to a state where the restrictive effect of the anti-error member 5 on the first outflow end 42 can be released. Only then can the user connect the first outflow end 42 to the connector of the receiving pipeline and continue to discharge the remaining fluid in the storage chamber 111a into the biological body, thereby reducing the possibility that the user will discharge the air in the diversion pipeline 4 into the biological body due to misoperation, that is, the conveying device 10 of the embodiment of the present application has better medical safety.

[0085] Optionally, see Figure 1 As shown, the driving member 3 is connected to the guide pipe 4 through the anti-error member 5. The anti-error member 5 includes an anti-error body and a displacement part connected thereto. The driving member 3 can be displaced and abutted with the displacement part and can drive the displacement part to be displaced, so that the anti-error member 5 can be disconnected from the guide pipe 4. The relevant structure and anti-error operation process of this embodiment can refer to the previous paragraph. The only difference is that the anti-error member 5 can be disconnected from the guide pipe 4, which will not be repeated here. The conveying device 10 of this embodiment can also reduce the possibility of the user discharging the air in the guide pipe 4 into the body due to misoperation, that is, the conveying device 10 of the embodiment of the present application also has good medical safety. The subsequent content of this article mainly introduces the structure of the second type of anti-error member 5 using this embodiment as an example.

[0086] Of course, the error-proofing component 5 can be disconnected from the driving component 3 and the guide pipe 4 at the same time. The subsequent content of this article mainly uses this embodiment as an example to introduce the structure of the first type of error-proofing component 5.

[0087] The structure of the first type of error-proofing component 5: Optionally, please refer to Fig.14 As shown, the error-proofing component 5 includes a first locking component 51 and a second locking component 52. The first locking component 51 and the second locking component 52 are clamped together. The first locking component 51 and the second locking component 52 can clamp the driving component 3 and the guide pipe 4. Under the action of external force, the first locking component 51 can be released from the clamping connection with the second locking component 52.

[0088] In this embodiment, please refer to Fig.14 As shown, the first locking member 51 and the second locking member 52 clamp the driving member 3 and the guide pipe 4 to limit the first outflow end 42 from moving to a position where it can be connected to the joint of the receiving pipe. When the user reduces the storage capacity of the storage chamber 111a by pushing the driving member 3, the driving member 3 can drive the error-proofing member 5 to contact and squeeze the containing body 1, so that the first locking member 51 and the second locking member 52 are released from the clamping, and the first locking member 51 and the second locking member 52 no longer have a clamping effect on the driving member 3 and the guide pipe 4, and the user can connect the first outflow end 42 to the joint of the receiving pipe. Among them, the clamping of the first locking member 51 and the second locking member 52 is easy to be released, the operational difficulty is low, and the user experience is high. Or, in other embodiments (not shown in the figure), the driving member 3 can drive the error-proofing member 5 to contact and squeeze other parts (guide pipe 4 or fluid valve 2) in the conveying device 10, so that the first locking member 51 and the second locking member 52 are released from the clamping. The following content of this article mainly introduces the example that the driving member 3 can drive the error-proofing member 5 to contact the containing body 1 and squeeze each other.

[0089] The error-proofing component 5 of the first type of structure may specifically include three embodiment structures, and the error-proofing component 5 of the three embodiment structures will be introduced in turn in the following text.

[0090] The error-proofing component 5 of the first embodiment structure of the first category:

[0091] Please refer to Fig.14 As shown, the second locking member 52 may include a protrusion 522, and the protrusion 522 is spaced apart from the containing body 1. Under the action of external force, the driving member 3 needs to move a preset distance so that the air in the guide pipe 4 is exhausted, and then the protrusion 522 can contact and squeeze the containing body 1 to release the engagement between the first locking member 51 and the second locking member 52, thereby achieving the above-mentioned error-proofing effect.

[0092] In other embodiments (not shown in the figure), the first locking member 51 may include a protrusion 522, and the protrusion 522 is spaced apart from the containing body 1. Under the action of external force, the driving member 3 needs to move a preset distance so that the air in the guide pipe 4 is exhausted, and the protrusion 522 can contact and squeeze the containing body 1 to release the first locking member 51 and the second locking member 52, thereby achieving the above-mentioned error prevention effect. The distance between the protrusion 522 and the containing body 1 can be set accordingly according to the amount of air in the guide pipe 4.

[0093] In addition, please refer to Fig.18As shown, the container 1 includes a fourth positioning member 13 connected to the cylinder 11, and the fourth positioning member 13 is used to limit the rubber plug 12 from being separated from the cylinder 11. The cylinder 11 can be threaded, clamped or integrally connected with the fourth positioning member 13. The driving member 3 can drive the protrusion 522 to contact and squeeze each other with the fourth positioning member 13, so that the first locking member 51 and the second locking member 52 are released from the clamping, thereby achieving the above-mentioned error-proofing effect. Of course, the container 1 can also include other parts connected to the cylinder 11, which are used to contact and squeeze each other with the protrusion 522, so that the first locking member 51 and the second locking member 52 are released from the clamping, thereby achieving the above-mentioned error-proofing effect. The fourth positioning member 13 includes a boss 133, and the boss 133 is used to contact and squeeze each other with the protrusion 522.

[0094] Furthermore, please refer to Fig.15 As shown, the first locking member 51 includes a first clamping body 511 and a first limiting protrusion 512, the first limiting protrusion 512 is provided with a first limiting notch 512a, and the first clamping body 511 is provided with a first clamping notch 511a and a second clamping notch 511b. The second locking member 52 includes a second clamping body 521, the second clamping body 521 is provided with a second limiting notch 521a and a second limiting protrusion 521b, and the second clamping body 521 is also provided with a third clamping notch 521c and a fourth clamping notch 521d. When the first limiting protrusion 512 is embedded in the second limiting notch 521a, the first limiting notch 512a is engaged with the second limiting protrusion 521b, so that the first locking member 51 is engaged with the second locking member 52. The space enclosed by the first clamping notch 511a and the third clamping notch 521c is used for the driving member 3 to pass through, and the driving member 3 can be clamped by the first clamping body 511 and the second clamping body 521. The space enclosed by the second clamping notch 511b and the fourth clamping notch 521d is used for the guide pipe 4 to pass through, and the guide pipe 4 can be clamped by the first clamping body 511 and the second clamping body 521. Fig.16 As shown, the first clamping body 511 and the second clamping body 521 can also be flexibly connected by a thin wall 511d, and the first clamping body 511 can move relative to the second clamping body 521 to disconnect the error-proofing component 5 from the driving component 3 and disconnect the error-proofing component 5 from the guide pipe 4.

[0095] The error-proofing component 5 of the second embodiment structure of the first category:

[0096] Please refer to Fig.17As shown, the error-proofing component 5 can also include a first positioning component 53, the first locking component 51 includes a first hook 513, the first locking component 51 is provided with a third limiting notch 511c, the second locking component 52 includes a second hook 523, the second locking component 52 is provided with a fourth limiting notch 521e, the third limiting notch 511c can accommodate at least a portion of the second hook 523, the fourth limiting notch 521e can accommodate at least a portion of the first hook 513, one side of the first positioning component 53 can abut against the first hook 513, and the other side of the first positioning component 53 can abut against the second hook 523 to limit the first hook 513 from disengaging from the fourth limiting notch 521e, and limit the second hook 523 from disengaging from the third limiting notch 511c. The first positioning member 53 is spaced apart from the containing body 1. Under the action of external force, the driving member 3 needs to move a preset distance so that the air in the guide pipe 4 can be exhausted. Only then can the first positioning member 53 contact and squeeze the containing body 1, so as to drive the first positioning member 53 to disengage from the first hook 513 and the second hook 523, so that the first locking member 51 and the second locking member 52 are released from the engagement, thereby achieving the above-mentioned error-proofing effect.

[0097] The distance between the first positioning member 53 and the containing body 1 can be set accordingly according to the amount of air in the guiding pipeline 4 .

[0098] Also, please refer to Fig.18 As shown, the container 1 includes a fourth positioning member 13 connected to the cylinder 11, and the fourth positioning member 13 is used to limit the rubber plug 12 from being separated from the cylinder 11. The cylinder 11 can be connected to the fourth positioning member 13 by threading, clamping or integral molding. The fourth positioning member 13 includes a boss 131, and the driving member 3 can drive the first positioning member 53 and the boss 131 to squeeze each other, so as to drive the first positioning member 53 to be separated from the first hook 513 and the second hook 523, so that the first locking member 51 and the second locking member 52 are released from the clamping, thereby achieving the above-mentioned error-proofing effect. In detail, the first positioning member 53 does not protrude relative to the first locking member 51 and the second locking member 52. Under this setting, the user can only move the error-proofing member 5 toward the boss 131 through the driving member 3, so that the boss 131 contacts and squeezes the first positioning member 53, so as to release the first locking member 51 and the second locking member 52. The error-proofing effect of this embodiment is better.

[0099] Of course, the containing body 1 may also include other parts connected to the cylinder 11, which are used to press against the first positioning member 53 to release the first locking member 51 from the second locking member 52, thereby achieving the above-mentioned error-proofing effect.

[0100] Furthermore, please refer to Fig.17As shown, the first locking member 51 includes a first clamping body 511, a third limiting notch 511c, and a first hook 513 are provided on the first clamping body 511, and the first clamping body 511 is provided with a first clamping notch 511a and a second clamping notch 511b, and the second locking member 52 includes a second clamping body 521, a fourth limiting notch 521e and a second hook 523 are provided on the second clamping body 521, and the second clamping body 521 is provided with a third clamping notch 521c and a fourth clamping notch 521d. The space enclosed by the first clamping notch 511a and the third clamping notch 521c is used for the driving member 3 to pass through, and the driving member 3 can be clamped by the first clamping body 511 and the second clamping body 521. The space enclosed by the second clamping notch 511b and the fourth clamping notch 521d is used for the diversion pipeline 4 to pass through, and the diversion pipeline 4 can be clamped by the first clamping body 511 and the second clamping body 521. The error-proofing member 5 also includes a first torsion spring 54, and the first clamping body 511 is connected to the second clamping body 521 through the first torsion spring 54. When the first locking member 51 and the second locking member 52 are released from the clamping connection, the first clamping body 511 and the second clamping body 521 are driven to move relative to each other under the elastic force of the first torsion spring 54, so that the error-proofing member 5 is disconnected from the driving member 3, and the error-proofing member 5 is disconnected from the diversion pipeline 4.

[0101] The error-proofing member 5 of the third embodiment structure of the first category: Optionally, please refer to Fig.19 As shown, the first locking member 51 includes a first hook 513, and the second locking member 52 includes a second clamping body 521, a second positioning member 524 and a first elastic member 525. The second positioning member 524 is connected to the second clamping body 521 through the first elastic member 525. Under the elastic force of the first elastic member 525, the second positioning member 524 can be engaged with the first hook 513. The second positioning member 524 is spaced apart from the containing body 1. Under the action of external force, the driving member 3 needs to move a preset distance so that the air in the diversion pipeline 4 can be exhausted before it can drive the second positioning member 524 to contact and squeeze the containing body 1. The squeezed second positioning member 524 can overcome the elastic force of the first elastic member 525 to move away from the first hook 513, so that the first locking member 51 and the second locking member 52 are released from the engagement, thereby achieving the above-mentioned error-proofing effect.

[0102] The distance between the second positioning member 524 and the containing body 1 can be set accordingly according to the amount of air in the guide pipe 4 .

[0103] In addition, please refer to Fig.18As shown, the container 1 includes a fourth positioning member 13 connected to the cylinder 11, and the fourth positioning member 13 is used to limit the rubber plug 12 from being separated from the cylinder 11. The cylinder 11 can be connected to the fourth positioning member 13 by threading, clamping or integral molding. The fourth positioning member 13 includes a boss 131, and the driving member 3 can drive the second positioning member 524 and the boss 131 to squeeze each other, so that the first hook 513 and the second positioning member 524 are separated, so that the first locking member 51 and the second locking member 52 are released from the clamping, thereby achieving the above-mentioned error-proofing effect. Of course, the container 1 can also include other parts connected to the cylinder 11, which are used to squeeze each other with the second positioning member 524, so that the first locking member 51 and the second locking member 52 are released from the clamping, thereby achieving the above-mentioned error-proofing effect. Of course, in other embodiments (not shown in the figure), the relevant structural settings of the first locking member 51 and the relevant structural settings of the second locking member 52 can be interchangeable, and can also have the effects of the above-mentioned content, which will not be repeated here.

[0104] Furthermore, please refer to Fig.19 As shown, the first locking member 51 includes a first clamping body 511, a first hook 513 is arranged on the first clamping body 511, and the first clamping body 511 is provided with a first clamping notch 511a and a second clamping notch 511b, and the second locking member 52 includes a second clamping body 521, and the second clamping body 521 is provided with a third clamping notch 521c and a fourth clamping notch 521d. The space enclosed by the first clamping notch 511a and the third clamping notch 521c is used for the driving member 3 to pass through, and the driving member 3 can be clamped by the first clamping body 511 and the second clamping body 521. The space enclosed by the second clamping notch 511b and the fourth clamping notch 521d is used for the diversion pipeline 4 to pass through, and the diversion pipeline 4 can be clamped by the first clamping body 511 and the second clamping body 521. The first clamping body 511 and the second clamping body 521 can also be flexibly connected by a thin wall (not shown in the figure). Under the action of external force, the first clamping body 511 can move relative to the second clamping body 521 to disconnect the error-proofing member 5 from the driving member 3, and disconnect the error-proofing member 5 from the diversion pipeline 4. The first clamping body 511 and the second clamping body 521 are flexibly connected by a thin wall so that the first clamping body 511 and the second clamping body 521 are still connected after the clamping relationship is released, and it is not easy for either the first clamping body 511 or the second clamping body 521 to be lost at the operation site, which is convenient for the first clamping body 511 and the second clamping body 521 to be uniformly recovered and scrapped after the operation.

[0105] Please refer to Figure 19-20As shown, the second clamping body 521 may be provided with a first recessed portion 521f, and the first recessed portion 521f is used to accommodate the first hook 513, the second positioning member 524 and the first elastic member 525. The second clamping body 521 also includes a rotating shaft 521i disposed in the first recessed portion 521f, and the rotating portion 524c of the second positioning member 524 is rotatably connected to the rotating shaft 521i. The second positioning member 524 is connected to the side wall of the second clamping body 521 for enclosing and forming the first recessed portion 521f through the first elastic member 525. Under the elastic force of the first elastic member 525, the clamping portion 524a of the second positioning member 524 can be clamped with the first hook 513. When the boss 131 contacts and presses the force-bearing portion 524b of the second positioning member 524, the second positioning member 524 can overcome the elastic force of the first elastic member 525 and thus separate from the first hook 513. The boss 131 may have a wedge-shaped end, and the force-bearing portion 524b may have an arc surface. When the wedge-shaped end abuts against the arc surface, the boss 131 can smoothly drive the force-bearing portion 524b to move. The first elastic member 525 may be a torsion spring or a spring. The second clamping body 521 may be provided with a second recessed portion 521g, and the second locking member 52 may include a pusher 526 and a second elastic member 527. The pusher 526 is connected to the side wall of the second clamping body 521 for enclosing and forming the second recessed portion 521g through the second elastic member 527, and the pusher 526 can abut against the first clamping body 511. When the first locking member 51 and the second locking member 52 are released from the clamping, under the elastic force of the second elastic member 527, the pusher 526 can push the first clamping body 511 to move relative to the second clamping body 521, so that the error-proofing member 5 is separated from the driving member 3, and the error-proofing member 5 is separated from the diversion pipeline 4. The pusher 526 includes a second stopper 526a and a rod 526b connected to each other. The second clamping body 521 includes a second step 521m. Under the elastic force of the second elastic member 527, the second elastic member 527 can push the second stopper 526a to abut against the second step 521m to limit the pusher 526 from separating from the second recess 521g. The rod 526b is used to push the first clamping body 511.

[0106] Please refer to Figure 21-22As shown, the second clamping body 521 includes a first portion 521j and a second portion 521k, the first portion 521j is thinner than the second portion 521k, and the first recessed portion 521f and the second recessed portion 521g are both provided in the first portion 521j. The second locking member 52 also includes a cover plate 528, which is used to be connected with the first portion 521j to cover the first recessed portion 521f and the second recessed portion 521g, and to limit the second positioning member 524 and the first elastic member 525 from being separated from the first recessed portion 521f, and to limit the pushing member 526 and the second elastic member 527 from being separated from the second recessed portion 521g. The first portion 521j is provided with a through hole 521h connected to the first recessed portion 521f, and the through hole 521h is used for the boss 131 to pass through, so that the boss 131 contacts and squeezes the force-bearing portion 524b of the second positioning member 524. Under this setting, the user can only use the driving member 3 to move the anti-error member 5 toward the boss 131, so that the boss 131 passes through the through hole 521h and contacts and squeezes the force-bearing portion 524b of the second positioning member 524, so as to release the first locking member 51 and the second locking member 52. This embodiment has a better anti-error effect.

[0107] Please refer to Fig.18 As shown, the fourth positioning member 13 may include a first through hole 132 , and the first through hole 132 is used for the driving member 3 to pass through.

[0108] In the above-mentioned embodiment of the error-proofing component 5 of the first type of structure, the driving component 3 includes a push rod 32, and the push rod 32 is provided with a first notch 321. At least part of the error-proofing component 5 is embedded in the first notch 321, so that the error-proofing component 5 is limitedly connected to the push rod 32.

[0109] This article subsequently introduces the error-proofing component 5 of the second type of structure. The error-proofing component 5 of the second type of structure includes three specific embodiments. This article first introduces the structure of the error-proofing component 5 of the first embodiment of the second type, and then introduces the structure of the error-proofing component 5 of the second embodiment of the second type and the structure of the error-proofing component 5 of the third embodiment of the second type in turn:

[0110] The structure of the error-proofing member 5 of the first embodiment of the second category:

[0111] Optionally, see Fig.23a , Fig.24 , Fig.25 , Fig.26a As shown, the driving member 3 includes a driving portion 322, at least part of the edge of the driving portion 322 is relative to the preset moving direction of the driving member (such as Fig.24The dotted line shown in the figure is inclined, and the error-proofing component 5 includes a second shell 57 and a fifth positioning component 58 that are slidably connected. The second shell 57 is slidably connected to the driving component 3. When the fifth positioning component 58 is in a first position relative to the second shell 57, the guide pipe 4 is limited by the fifth positioning component 58. When the fifth positioning component 58 is in a second position relative to the second shell 57, the guide pipe 4 can be separated from the fifth positioning component 58. Under the action of external force, the driving part 322 can abut against the fifth positioning component 58, so that the fifth positioning component 58 can drive the second shell 57 to abut against the accommodating body 1, and the driving part 322 can also drive the fifth positioning component 58 to slide from the first position to the second position relative to the second shell 57.

[0112] In this embodiment, please refer to 23a, Fig.24 , Fig.25 , Fig.26a As shown, when the fifth positioning member 58 is in the first position relative to the second shell 57, the guide pipe 4 is limited by the fifth positioning member 58, and the guide pipe 4 is difficult to directly detach from the fifth positioning member 58 under the action of external force. When the driving member 3 is used to reduce the storage capacity of the storage chamber 111a and moves, part of the fluid in the storage chamber 111a is discharged, so that the air in the guide pipe 4 is discharged. In the process of discharging air, the driving part 322 can abut against the fifth positioning member 58, so that the fifth positioning member 58 can drive the second shell 57 to abut against the containing body 1, and then the second shell 57 is limited by the containing body 1 and stops moving, but the driving part 322 can continue to drive the fifth positioning member 58 to slide from the first position to the second position relative to the second shell 57. When the fifth positioning member 58 is in the second position, the limiting effect of the fifth positioning member 58 on the guide pipe 4 is weakened, and the guide pipe 4 can easily detach from the fifth positioning member 58 under the action of external force. Before the guide pipe 4 can be separated from the fifth positioning member 58, the air in the guide pipe 4 has been exhausted, so that the error-proofing effect mentioned above can be achieved.

[0113] Please refer to Fig.24 As shown, the moving direction of the driving part 322 and the driving member 3 (as shown in FIG. Fig.24 The dotted line shown in the figure has a set angle α between them, the range of the angle α satisfies 5° to 10°, and the value of the angle α can be 5°, 5.5°, 6°, 6.5°, 7°, 7.5°, 8°, 8.5°, 9°, 9.5° or 10°. The size of the angle α can be set accordingly according to the amount of air in the guide pipe 4. The first position is as shown in the figure. Fig.26aThe position of the fifth positioning member 58 relative to the second housing 57 is shown. The second position is the position after the fifth positioning member 58 slides a preset distance relative to the second housing 57 in a direction away from the driving member 3. The preset distance D of the fifth positioning member 58 sliding from the first position to the second position relative to the second housing 57 satisfies 0mm<D≤35mm, and the distance D can be 5mm, 10mm, 12mm, 15mm, 17mm, 20mm, 22m, 25mm, 27mm, 30mm, 32mm, 35mm. The preset distance D can be set accordingly according to the amount of air in the guide pipe 4.

[0114] Also, please refer to Fig.23a , Fig.24 , Fig.25 , Fig.26a As shown in FIG. 27 , the second housing 57 includes a sleeve portion 57a ​​and an extension portion 57b connected to each other. The sleeve portion 57a ​​is provided with a second through hole 573 and a second notch 574 that are connected to each other. The second through hole 573 is used for the drive member 3 to pass through, and the second notch 574 is used for the drive member 322 to pass through. At least two second notches 574 are evenly distributed around the second through hole 573 on the sleeve portion 57a. The extension portion 57b is provided with a slide groove 571, which can be connected to the second through hole 573 and the second notch 574. The fifth positioning member 58 can slide in the slide groove 571. The extension portion 57b also includes a third limiting portion 572 on the side wall of the slide groove 571. The fifth positioning member 58 includes a third notch 581b. The third limiting portion 572 can cooperate with the third notch 581b to limit the movement of the fifth positioning member 58 relative to the second housing 57. When the third limiting portion 572 is connected to the third notch 581b, the fifth positioning member 58 is in the first position. The fifth positioning member 58 includes two oppositely disposed and connected clamping jaws 581a. When the two clamping jaws 581a are limited by the oppositely disposed side walls of the slide groove 571 and / or the two oppositely disposed third limiting portions 572, the two clamping jaws 581a can clamp the diversion pipeline 4, thereby having a limiting effect on the diversion pipeline 4. After the two third notches 581b are separated from the two third limiting portions 572 and the two clamping jaws 581a slide relative to the extension portion 57b by a preset distance to the second position, the limiting effect of the extension portion 57b on the two clamping jaws 581a is weakened, and the user can easily take the diversion pipeline 4 out from between the two clamping jaws 581a.

[0115] Further, at least a portion of the third limiting portion 572 extends from the side wall of the slide groove 571 in a direction substantially parallel to the side wall of the slide groove 571, and at least a portion of the third limiting portion 572 is spaced apart from the side wall of the slide groove 571, so that the third limiting portion 572 can be bent and deformed relative to the side wall of the slide groove 571. An end of the third limiting portion 572 away from the connection between the third connecting portion 572 and the side wall of the slide groove 571 can be in a water drop-like structure, and accordingly, the shape of the third notch 581b can be in a half-water drop shape, which can reduce the possibility of the third limiting portion 572 and the third notch 581b being stuck.

[0116] Furthermore, the extending direction of the slide slot 571 is in line with the moving direction of the driving member 3 (eg Fig.24 Please refer to Fig.25 In the embodiment shown, the extending direction of the slide slot 571 can be aligned with the moving direction of the driving member 3 (eg Fig.25 The slide groove 571 is a semi-exposed groove structure, and at least the third limiting portion 572 can be exposed outside the extension portion 57b.

[0117] In addition, the container 1 includes a fourth positioning member 13 connected to the cylinder 11, and the fourth positioning member 13 is used to limit the rubber plug 12 from being separated from the cylinder 11. The cylinder 11 can be threaded, clamped, or integrally connected to the fourth positioning member 13. The second shell 57 can abut against the fourth positioning member 13. Of course, the container 1 can also include other parts connected to the cylinder 11, which are used to abut against the second shell 57, so as to achieve the error-proofing effect of the above content.

[0118] In other embodiments (not shown in the figures), the side wall of the slide groove 571 may be provided with a third notch 581b, and the fifth positioning member 58 may include a third limiting portion 572. The limiting effect is the same as the above content and will not be repeated here.

[0119] In other embodiments (not shown in the figure), the fifth positioning member 58 can be two separate clamping claws 581a, the two clamping claws 581a can be limited in the slide groove 571, and the two clamping claws 581a can clamp the diversion pipeline 4. After the driving part 322 can simultaneously push the two clamping claws 581a to move a preset distance relative to the slide groove 571, the two clamping claws 581a are separated outside the slide groove 571 to release the limiting effect on the diversion pipeline 4, thereby achieving the above-mentioned error prevention effect. Of course, at least one of the two clamping claws 581a has a third notch 581b that cooperates with the third limiting part 572.

[0120] The structure of the error-proofing member 5 of the second embodiment of the second category:

[0121] Optionally, see Figure 23b , Figure 26b, Fig.26c , Figure 27b As shown, the fifth positioning member 58 includes a first slider 581 and a second slider 582, the second slider 582 is located between the first slider 581 and the driving part 322, the second slider 582 can be spaced apart from the first slider 581, and the second housing 57 can be engaged with the first slider 581 to limit the first slider 581 to be in a first position relative to the second housing 57. In the first position, the flow guiding pipeline 4 is limited by the first slider 581. Under the action of external force, the driving part 322 can push the second slider 582 to move toward the first slider 581, so that the second slider 582 releases the partial engagement between the first slider 581 and the second housing 57, and the second slider 582 abuts against the first slider 581. The second slider 582 can drive the first slider 581 to slide relative to the second housing 57 to the second position. In the second position, the flow guiding pipeline 4 can be separated from the first slider 581.

[0122] In this embodiment, please refer to Figure 23b , Figure 26b , Fig.26c , Figure 27bAs shown, when the driving member 3 is used to reduce the storage capacity of the storage chamber 111a and moves, part of the fluid in the storage chamber 111a is discharged, so that the air in the guide pipe 4 is discharged. In the process of discharging air, the driving part 322 of the driving member 3 can drive the second slider 582 to move, so that the second slider 582 can release part of the clamping connection between the first slider 581 and the second shell 57 (for example, the clamping connection between the fourth notch 581c and the fourth limiting part 575) through its own structure. Then, the second slider 582 continues to move until it can push the first slider 581 to slide relative to the second shell 57, and at the same time release the remaining clamping connection between the first slider 581 and the second shell 57 (for example, the clamping connection between the third limiting part 572 and the third notch 581b). When the second slider 582 pushes the first slider 581 to move to the second position, the limiting effect of the first slider 581 on the guide pipe 4 is weakened, and the guide pipe 4 can be easily separated from the first slider 581 under the action of external force. Before the guide pipe 4 can be separated from the first slider 581, the air in the guide pipe 4 has been exhausted, that is, the error-proofing effect of the above content can be achieved. Further, since the first slider 581 and the second slider 582 are arranged at intervals, the user is subjected to less resistance before pushing the driving member 3 so that the second slider 582 can push the first slider 581 to move, which has a labor-saving effect for the user. On the other hand, it reduces the possibility of the user applying too much force due to excessive resistance, resulting in a harsh sound when the air is quickly exhausted. The interval distance between the first slider 581 and the second slider 582 can be adjusted according to the amount of air to be exhausted. In one possible solution, all the air can be exhausted before the second slider 582 can drive the first slider 581. In another possible solution, part of the air can be exhausted before the second slider 582 can drive the first slider 581, and the remaining air is exhausted after the second slider 582 drives the first slider 581 to slide a preset distance.

[0123] in, Figure 23b The driving unit 322 shown is Fig.23aThe structure of the driving part 322 shown is the same, and will not be repeated here. The error-proofing member 5 of the second embodiment of the second category is similar to the error-proofing member 5 of the first embodiment of the second category. The error-proofing member 5 of the second embodiment of the second category has the technical effect of the error-proofing member 5 of the first embodiment of the second category, and the difference is that the first slider 581 of the error-proofing member 5 of the second embodiment of the second category not only has the third notch 581b for engaging with the third limiting portion 572 in the above embodiment, but also has a fourth notch 581c. Correspondingly, the second housing 57 includes a fourth limiting portion 575 provided on the side wall of the slide groove 571, and the fourth notch 581c can be engaged with the fourth limiting portion 575. The wedge-shaped portion 582a of the second slider 582 can be inserted between the fourth notch 581c and the fourth limiting portion 575, thereby releasing the engagement between the fourth notch 581c and the fourth limiting portion 575. In detail, the fourth limiting portion 575 extends from the side wall of the slide groove 571, and there is a gap between at least a portion of the fourth limiting portion 575 and the side wall of the slide groove 571, so that the fourth limiting portion 575 can be bent and deformed relative to the side wall of the slide groove 571, and the structure of at least a portion of the end of the fourth limiting portion 575 that is away from the side wall of the slide groove 571 is in the shape of a large cut circle (the shape of the part larger than a semicircle after a circle is cut). Correspondingly, the structure of the fourth notch 581c is in the shape of a large cut circle. Under this arrangement, the clamping connection between the fourth limiting portion 575 and the fourth notch 581c has a self-locking effect, and the possibility of directly applying a force to the first slider 581 to release the clamping connection between the fourth limiting portion 575 and the fourth notch 581c is low. Therefore, this arrangement has a better effect of preventing misoperation. The fourth notch 581c is closer to the second slider 582 than the third notch 581b, and accordingly, the fourth limiting portion 575 is closer to the second slider 582 than the third limiting portion 572. The first slider 581 has two clamping jaws 581a arranged opposite to each other. When the two clamping jaws 581a are limited by the opposite side walls of the slide groove 571 and / or the two opposite third limiting portions 572, the two clamping jaws 581a can clamp the diversion pipeline 4, thereby having a limiting effect on the diversion pipeline 4. When the two third notches 581b are separated from the two third limiting portions 572 and the two clamping jaws 581a slide relative to the extension portion 57b by a preset distance to the second position, the limiting effect of the extension portion 57b on the two clamping jaws 581a is weakened, and the user can easily take the diversion pipeline 4 out from between the two clamping jaws 581a.

[0124] In addition, the slide groove 571 arranged on the extension portion 57b is less exposed, and at least the third limiting portion 572 and the fourth limiting portion 575 are surrounded by the side walls of the slide groove 571, thereby reducing the possibility of failure of the error prevention effect due to misoperation of the third limiting portion 572 and the fourth limiting portion 575.

[0125] The structure of the error-proofing element 5 of the third embodiment of the second category:

[0126] The first embodiment of the second category, the second embodiment of the second category and the third embodiment of the second category involve the same structure of the driving portion 322 of the driving member 3. The first embodiment of the second category, the second embodiment of the second category and the third embodiment of the second category all utilize external force to enable the driving portion 322 to abut against the fifth positioning member 58, so that the fifth positioning member 58 can drive the second shell 57 to abut against the accommodating body 1. The driving portion 322 can also drive the fifth positioning member 58 to slide from the first position to the second position relative to the second shell 57, so that the diversion pipeline 4 is transformed from being limited by the fifth positioning member 58 to being able to be detached from the fifth positioning member 58. The first embodiment of the second category, the second embodiment of the second category and the third embodiment of the second category have the same error-proofing effect.

[0127] Please refer to Figure 26d-26e As shown, compared with the first embodiment of the second category and the third embodiment of the second category, the difference of the third embodiment of the second category is that the extension portion 57b of the second shell 57 includes a bottom plate 578 and a top plate 579, the bottom plate 578 is provided with a slide groove 571, the fifth positioning member 58 can slide in the slide groove 571, the top plate 579 is connected to the bottom plate 578, and the top plate 579 can cover the slide groove 571 to limit the fifth positioning member 58 from being separated from the slide groove 571, and the bottom plate 578 is provided with a fifth notch 576, and the fifth notch 576 is used for the diversion pipeline 4 to pass through. The fifth positioning member 58 includes a third stopper 583, when the fifth positioning member 58 is located at the first position relative to the slide groove 571, at least part of the third stopper 583 can extend into the fifth notch 576, and the third stopper 583 can limit the diversion pipeline 4 from being separated from the fifth notch 576 or the error-proofing member 5. When the driving part 322 pushes the fifth positioning member 58 to move in a direction away from the driving member 3 or the second through hole 573, the third stop portion 583 retracts from the fifth notch 576 into the slide groove 571, that is, the third stop portion 583 moves to the second position, and the third stop portion 583 has no limiting effect on the diversion pipeline 4, and the diversion pipeline 4 can be detached from the fifth notch 576 or the anti-error component 5.

[0128] In one possible embodiment, please refer to Figure 26d-Figure 26e As shown, the top plate 579 and the bottom plate 578 respectively squeeze the two oppositely arranged side surfaces of the fifth positioning member 58 to form a friction force between the top plate 579 and the fifth positioning member 58, and a friction force between the bottom plate 578 and the fifth positioning member 58, thereby limiting the movement of the fifth positioning member 58 relative to the extension portion 57b of the second shell 57. Only when the driving portion 322 applies a force to the fifth positioning member 58 can the friction force be overcome to allow the fifth positioning member 58 to move in a direction away from the driving member 3 or the second through hole 573, thereby allowing the fifth positioning member 58 to move from the first position to the second position.

[0129] In another possible embodiment, please refer to Figure 26d-26e As shown, the error-proofing component 5 includes a spring (not shown in the figure), one end of the spring is connected to the fifth positioning component 58, and the other end of the spring is connected to the bottom plate 578. Under the action of the spring force, the fifth positioning component 58 is restricted from moving from the first position to the second position. The driving part 322 applies a force to the fifth positioning component 58 to overcome the elastic force so that the fifth positioning component 58 moves in a direction away from the driving component 3 or the second through hole 573, thereby moving the fifth positioning component 58 from the first position to the second position. Since the slide groove 571 is connected to the second through hole 573 of the sleeve 57a, when the diversion pipeline 4 is separated from the error-proofing member 5, the fifth positioning member 58 may move from the slide groove 571 to the second through hole 573 and thus be separated from the second shell 57, which is easy to be lost at the operation site. Therefore, in the embodiment of the present application, the bottom plate 578 includes a fourth stopper 577 protruding from the bottom wall of the slide groove 571, and the fourth stopper 577 can abut against the fifth positioning member 58 to limit the fifth positioning member 58 from moving from the slide groove 571 to the second through hole 573, thereby reducing the possibility of the fifth positioning member 58 being separated from the second shell 57. Therefore, the error-proofing member 5 of the embodiment of the present application is easy to be recovered after use. In detail, the third stopper 583 is in the shape of a hook, and the third stopper 583 can half surround the fourth stopper 577. A sixth notch 578 a is provided on the side wall of the bottom plate 578 . The sixth notch 578 a is used to accommodate at least a portion of the spring of the error-proofing component 5 . The spring of the error-proofing component 5 can abut against the hook-shaped third stopper 583 .

[0130] There is another embodiment, please refer to Figure 26d-26e As shown, not only the top plate 579 and the bottom plate 578 respectively squeeze the two oppositely arranged side surfaces of the fifth positioning member 58 to form a friction force between the top plate 579 and the fifth positioning member 58, and a friction force between the bottom plate 578 and the fifth positioning member 58 to limit the fifth positioning member 58 from moving from the first position to the second position; but also the error-proofing member 5 includes a spring (not shown in the figure), one end of the spring is connected to the fifth positioning member 58, and the other end of the spring is connected to the bottom plate 578. Under the elastic force of the spring, the fifth positioning member 58 is limited from moving from the first position to the second position. By comprehensively utilizing the elastic force and the friction force, the fifth positioning member 58 is reliably limited to the first position. On this basis, the main part of the fifth positioning member 58 is surrounded by the top plate 579 and the bottom plate 578. This setting makes it difficult for the user to directly operate the fifth positioning member 58, and the anti-misoperation effect is better. In the above-mentioned embodiment of the top plate 579, the shape of the top plate 579 is similar to the shape of the slide groove 571, and the top plate 579 is provided with a seventh notch 579a, and the position of the seventh notch 579a corresponds to the position of the fifth notch 576 of the bottom plate 578 for the diversion pipeline 4 to pass through.

[0131] The following content of this article introduces the structure of the third type of error-proofing component 5:

[0132] Optionally, see Figure 28-29b As shown, the error-proofing component 5 includes a first shell 55, and the flow guide pipeline 4 includes a bladder tube 46 with variable capacity. The bladder tube 46 and the first outflow end 42 can be located in the first shell 55. The bladder tube 46 has a second inflow end 461 and a second outflow end 462. The second inflow end 461 is used for the fluid flowing into the first inflow end 41, and the second outflow end 462 is connected to the first outflow end 42. Under the pressure of the fluid, the bladder tube 46 can push the first outflow end 42 to move from the inside of the first shell 55 to the outside of the first shell 55.

[0133] In this embodiment, please refer to Figure 28-29b As shown, since the first outflow end 42 can be located in the first shell 55, the first outflow end 42 is in a position that cannot be connected to the connector of the receiving pipeline (not shown in the figure), the user needs to discharge at least part of the fluid in the storage chamber 111a of the conveying device 10, and under the action of the air pressure of the fluid, the bladder tube 46 expands, and the expanded bladder tube 46 simultaneously pushes the first outflow end 42 from the first shell 55 to the outside of the first shell 55. During the expansion of the bladder tube 46, the air in the guide pipeline 4 can also be discharged through the first outflow end 42, and before the first outflow end 42 is pushed to the outside of the first shell 55, the air in the guide pipeline 4 is completely discharged. After the first outflow end 42 is pushed to the outside of the first shell 55, the user can connect the first outflow end 42 to the connector of the receiving pipeline. Therefore, the scheme of the embodiment of the present application also has an error-proofing effect, reducing the possibility that the user discharges the air in the guide pipeline 4 into the biological body due to misoperation, that is, the conveying device 10 of the embodiment of the present application has reliable medical safety. The expandable volume of the bladder tube 46 can be set according to the desired amount of exhausted air.

[0134] Optionally, see Fig.29b As shown, the error-proofing component 5 also includes a third positioning component 56, which is located in the first shell 55, and the third positioning component 56 is connected to the outer wall of the first outflow end 42. The inner wall of the first shell 55 is provided with a first limiting portion 551, and the third positioning component 56 can be engaged with the first limiting portion 551 to limit the movement of the first outflow end 42 located outside the first shell 55 relative to the first shell 55.

[0135] In this embodiment, please refer to Fig.29b As shown, when the bag tube 46 expands and pushes the first outflow end 42 to move a certain distance outside the first shell 55, the third positioning member 56 connected to the outer wall of the first outflow end 42 can be engaged with the first limiting portion 551 located on the inner wall of the first shell 55 to fix the first outflow end 42 relative to the first shell 55, thereby reducing the possibility of the first outflow end 42 being separated from the bag tube 46 due to external force, and at the same time limiting the bag tube 46 from continuing to expand, thereby reducing the possibility of the bag tube 46 rupturing.

[0136] The first limiting portion 551 may be a groove or a protrusion disposed on the inner wall of the first shell 55 .

[0137] Optionally, see Fig.29a As shown, the error-proofing member 5 further includes a third positioning member 56, which is located in the first shell 55, and is connected to the outer wall of the first outflow end 42. The inner wall of the first shell 55 is provided with a second limiting portion 552, and the third positioning member 56 can be engaged with the second limiting portion 552 to limit the movement of the first outflow end 42 located inside the first shell 55 relative to the first shell 55, thereby reducing the possibility of the first outflow end 42 moving to the outside of the first shell 55 due to the force of the non-bag tube 46, that is, reducing the possibility of failure of the error-proofing effect of the delivery device 10 of the embodiment of the present application. Among them, the first limiting portion 551 can be a groove or a protrusion provided on the inner wall of the first shell 55.

[0138] In the above embodiment, the third positioning member 56 can be sleeved on the outer wall of the first outflow end 42. In detail, the third positioning member 56 and the first outflow end 42 can be interference fit or bonded to ensure that the third positioning member 56 and the first outflow end 42 are fixedly connected.

[0139] In the above embodiment, please refer to Figure 1 As shown, the flow guide pipeline 4 also includes a connecting pipeline 43 and a filter tube 44. The first inflow end 41 is connected to the filter tube 44 through the connecting pipeline 43. The filter tube 44 can be directly connected to the first outflow end 42, or the filter tube 44 can be indirectly connected to the first outflow end 42 through the capsule tube 46. The connecting pipeline 43 is a flexible tube, and the filter tube 44 is used to filter bacteria, viruses, particles, water vapor, impurities and other substances harmful to organisms. Of course, the connection order of the filter tube 44 and the first outflow end 42 can also be changed.

[0140] The delivery device 10 of the embodiment of the present application may also include a vacuum sealing bag (not shown in the figure). During the production of the delivery device 10 of the embodiment of the present application, at least the container 1 and the fluid valve 2 described above may be vacuum sealed in the vacuum sealing bag, so that the container 1, the fluid valve 2 and the fluid stored in the container 1 are in a clean state before the delivery device 10 is used in surgery, thereby reducing the risk of infection of the organism. At the same time, this setting makes the storage environment requirements of the delivery device 10 lower after the delivery device 10 is produced as a qualified product and before it is used in surgery, so that the delivery device 10 has good portability.

[0141] The delivery device 10 may further include a dust cap (not shown in the figure), which may be connected to the fluid valve 2, the first inflow end 41, or the first outflow end 42. Before the user uses the delivery device 10 to deliver the fluid, the dust cap is first removed to connect the fluid valve 2 to the first inflow end 41. Alternatively, the dust cap is only connected to the first outflow end 42, and the first inflow end 41 is already connected to the fluid valve 2 before the user uses the delivery device 10 to deliver the fluid.

[0142] A second aspect of the present application provides a fluid storage method, which can use the above-mentioned delivery device 10 (excluding the diversion pipeline and the error-proofing component connected to the diversion pipeline) to store fluid. The fluid storage method of the present application embodiment includes:

[0143] S1: Activate the fluid valve 2 of the conveying device 10, put the fluid valve 2 in the first state, and allow the fluid to flow from the fluid source (not shown in the figure) through the fluid valve 2 into the storage chamber 111a of the containing body 1 of the conveying device 10; S2: put the fluid valve 2 in the second state.

[0144] In this embodiment, the connector of the fluid source (not shown in the figure) is connected to the fluid valve 2 of the conveying device 10. During the connection between the connector of the fluid source and the fluid valve 2, the fluid valve 2 is activated to the first state (for the relevant principle, please refer to the relevant content above, which will not be repeated here). The fluid of the fluid source can flow from the connector of the fluid source to the fluid valve 2, and finally flow to the storage chamber 111a of the container 1. When the storage chamber 111a stores a preset amount of fluid, the fluid valve 2 is in the second state. In detail, during the separation of the connector of the fluid source from the fluid valve 2, the fluid valve 2 automatically changes to the second state (for the relevant principle, please refer to the relevant content above, which will not be repeated here), so that the fluid is stored in the storage chamber 111a. The above method makes it unnecessary for the conveying device 10 of the embodiment of the present application to store the fluid that may be contaminated from the reusable fluid source at the surgical site. The conveying device 10 of the embodiment of the present application can directly deliver the fluid with higher cleanliness to the organism, and the possibility of infection of the organism is low. Secondly, during the operation, when the user uses the pre-filled fluid delivery device 10, there is no need for complicated valve operations. The user only needs to operate the valve core 23 of the fluid valve 2 to move the fluid valve 2 from the state of cutting off the fluid to the state of flowing the fluid. Therefore, the above fluid storage method can save operation time and provide a high user experience.

[0145] Optionally, after the fluid valve 2 is placed in the second state, the fluid storage method of the embodiment of the present application further includes: disinfecting and / or sterilizing the conveying device 10 to improve the cleanliness of the conveying device 10 and the internal fluid. The disinfection and sterilization treatment methods may include using disinfectants, sterilizing agents, radiation and other methods to disinfect microorganisms to kill the outer surface of the conveying device 10, and / or using radiation to irradiate the storage cavity 111a to disinfect the fluid in the storage cavity 111a. After disinfection and / or sterilization, the fluid storage method of the embodiment of the present application further includes: vacuum-sealing the conveying device 10 to reduce the possibility of contamination of the conveying device 10 and the fluid stored therein, thereby reducing the risk of infection of the organism.

[0146] Optionally, the method for causing the fluid to flow from the fluid source through the fluid valve 2 into the storage chamber 111a of the container 1 of the conveying device 10 includes: using the pressure of the fluid to increase the storage capacity of the storage chamber 111a, and causing the fluid to flow into the storage chamber 111a. In this embodiment, during the process of storing the fluid, the connector of the fluid source is usually connected to the conveying device 10. Under this setting, the pressure of the fluid of the fluid source can be used to increase the storage capacity of the storage chamber 111a in the conveying device 10, so that the fluid of the fluid source naturally flows into the storage chamber 111a. This method can simplify the equipment required for storing the fluid and the process of storing the fluid. Optionally, the method for causing the fluid to flow from the fluid source through the fluid valve 2 into the storage chamber 111a of the container 1 of the conveying device 10 includes: using an external force to increase the storage capacity of the storage chamber 111a, generating a negative pressure effect on the fluid, so that the fluid flows into the storage chamber 111a. In this embodiment, during the fluid storage process, the cylinder 11 and the rubber plug 12 can be used to form the sliding piston mechanism described above, and then the driving member 3 can be connected to the rubber plug 12, and the storage capacity of the storage chamber 111a can be increased by pulling the driving member 3, so that a negative pressure effect can be generated on the fluid of the fluid source, so that the fluid flows into the storage chamber 111a, and this method has the effect of controlling the required amount of stored fluid. Among them, the driving member 3 can be pulled manually or by a driver. In other embodiments, other parts (not shown in the figure) can be connected to the rubber plug 12, and the storage capacity of the storage chamber 111a can be increased by pulling the parts, so that a negative pressure effect can be generated on the fluid of the fluid source, so that the fluid flows into the storage chamber 111a.

[0147] In a possible method, the storage capacity of the storage chamber 111 a may be increased by utilizing the pressure of the fluid of the fluid source, and the storage capacity of the storage chamber 111 a may also be increased by utilizing an external force at the same time.

[0148] Optionally, after the fluid flows from the fluid source into the storage chamber 111a of the delivery device 10 and before the fluid valve 2 is placed in the second state, the fluid storage method of the embodiment of the present application includes: discharging a portion of the fluid in the storage chamber 111a. This method can place the storage chamber 111a in a normal pressure state, thereby reducing the possibility of explosive injection when injected into a living body due to excessive pressure of the fluid stored in the delivery device 10, that is, reducing the possibility of physiological discomfort in the living body, and at the same time reducing the possibility of harsh sound when the fluid flows, thereby improving the user experience.

[0149] Among them, the fluid stored in the storage chamber 111a can be a normal pressure gas, for example, the gas pressure of carbon dioxide, nitrogen, and nitrous oxide is 0.01Mpa~2Mpa, and the gas pressure of oxygen and hydrogen is 0.1Mpa~2Mpa. The specific pressure values ​​of the fluid can be referred to the above content and will not be repeated here.

[0150] Optionally, before connecting the fluid valve 2 and the container 1, the fluid storage method of an embodiment of the present application includes: using fluid from a fluid source to clean one end of the fluid valve 2 that is connected to the container 1, and cleaning one end of the container 1 that is connected to the fluid valve 2, so that the connection between the container 1 and the fluid valve 2 is kept clean, so as to reduce the amount of air in the connection between the container 1 and the fluid valve 2, thereby making the fluid stored in the storage chamber 111a more pure.

[0151] Optionally, the fluid valve 2 and the container 1 are assembled in an environment filled with the fluid to be stored, so that there is no air in the connection between the container 1 and the fluid valve 2. Optionally, after the fluid valve 2 is activated, the fluid is filled into the storage chamber 111a, and then the fluid in the storage chamber 111a is discharged, and then the fluid is refilled into the storage chamber 111a. After the fluid is filled at least twice, the amount of air in the connection between the container 1 and the fluid valve 2 can be reduced.

[0152] Optionally, the method after activating the fluid valve 2 of the conveying device 10 and before allowing the fluid to flow from the fluid source through the fluid valve 2 into the storage chamber 111a of the container 1 of the conveying device 10 includes: using the fluid of the fluid source to clean the end of the fluid valve 2 facing away from the container 1 while controlling the storage capacity of the storage chamber 111a to remain unchanged.

[0153] In this embodiment, after activating the fluid valve 2 of the conveying device 10 and before allowing the fluid to flow from the fluid source through the fluid valve 2 into the storage chamber 111a of the container 1 of the conveying device 10, the fluid of the fluid source can enter the fluid valve 2 and the connection between the fluid valve 2 and the container 1. Under the condition that the storage capacity of the storage chamber 111a is controlled to remain unchanged, the fluid of the fluid source flows rapidly in the fluid valve 2 and the connection between the fluid valve 2 and the container 1, and then flows from the end of the fluid valve 2 away from the container 1 to the outside of the conveying device 10, thereby driving the air in the connection between the fluid valve 2 and the container 1 to the outside of the conveying device 10, so as to reduce the amount of air in the connection between the fluid valve 2 and the container 1, so as to keep the connection between the container 1 and the fluid valve 2 clean, so as to reduce the amount of air in the connection between the container 1 and the fluid valve 2, so as to make the purity of the fluid stored in the storage chamber 111a higher. Among them, under the condition that the storage capacity of the storage chamber 111a is controlled to be the minimum value, the end of the fluid valve 2 away from the container 1 can be cleaned with the fluid of the fluid source, and more air in the connection between the container 1 and the fluid valve 2 can be discharged, so that the purity of the fluid stored in the storage chamber 111a is higher. In addition, during the cleaning process, the end of the fluid valve 2 away from the container 1 is not blocked by the outlet of the fluid source, so that the fluid of the fluid source can enter the fluid valve 2 through the end of the fluid valve 2 away from the container 1, and then flow to the outside of the conveying device 10 through the end of the fluid valve 2 away from the container 1.

[0154] The third aspect of the embodiment of the present application provides a fluid delivery method, which uses the delivery device 10 of the above content (excluding the guide pipeline 4 and the error-proofing component 5 connected to the guide pipeline 4) to deliver fluid. The fluid delivery method of the embodiment of the present application includes: S3: activating the fluid valve 2 of the delivery device 10, so that the fluid valve 2 is in a first state; S4: reducing the storage capacity of the storage chamber 111a of the delivery device 10, so that at least part of the fluid located in the storage chamber 111a is discharged to the outside of the delivery device 10, wherein at least part of the fluid located in the storage chamber 111a can be directly discharged to the organism located outside the delivery device 10. The above method makes it unnecessary for the delivery device 10 of the embodiment of the present application to obtain a fluid that may be contaminated from a reusable fluid source at the surgical site. The delivery device 10 of the embodiment of the present application can directly deliver a fluid with a higher cleanliness to the organism, and the possibility of infection of the organism is low. Secondly, during the operation, when the user uses the pre-filled fluid delivery device 10 to deliver fluid, there is no need for complicated valve operations. The user only needs to operate the valve core 23 of the fluid valve 2 to move the fluid valve 2 from the state of cutting off the fluid to the state of flowing the fluid. Therefore, the above fluid storage method can save operation time and provide a high user experience.

[0155] The fourth aspect of the present application provides a fluid delivery method, which uses the delivery device 10 (including the flow guide line 4) of the above content to deliver fluid, and the method includes: S5: activating the fluid valve 2 of the delivery device 10, so that the fluid valve 2 is in the first state; S6: reducing the storage capacity of the storage chamber 111a of the delivery device 10, so that at least part of the fluid in the storage chamber 111a of the delivery device 10 pushes the air in the flow guide line 4 of the delivery device 10 to the outside of the delivery device 10; S7: continuing to reduce the storage capacity of the storage chamber 111a, so that at least part of the fluid is delivered to the receiving target. Among them, the receiving target can be an organism or other receiving pipeline for fluid flow. The following text mainly uses the organism as an example to introduce the receiving target.

[0156] In this embodiment, before delivering fluid to a living organism during surgery, it is necessary to first reduce the storage capacity of the storage chamber 111a of the delivery device 10 so that at least a portion of the fluid in the storage chamber 111a is discharged to the outside of the delivery device 10, and the discharged fluid is used to discharge the air in the guide pipe 4 of the delivery device 10, and then the storage capacity of the storage chamber 111a is further reduced so that at least a portion of the fluid is delivered to the receiving target (living organism), thereby reducing the possibility of air or impurities being delivered to the living organism, that is, reducing the possibility of the living organism developing a disease risk.

[0157] Optionally, the delivery device 10 further includes an error-proofing component 5, which is connected to the guide pipe 4. Before the fluid is discharged, the error-proofing component 5 is used to limit the guide pipe 4. The method before at least part of the fluid is delivered to the receiving target includes: discharging part of the fluid, and then triggering the error-proofing component 5 to a state that can release the restriction of the error-proofing component 5 on the guide pipe 4. This method requires the user to first discharge the air in the guide pipe 4 of the delivery device 10, so that the guide pipe 4 can complete the operation of delivering the fluid without being restricted by the error-proofing component 5, thereby reducing the possibility of the user delivering air to the organism due to misoperation, that is, reducing the possibility of the organism developing a disease risk.

[0158] Optionally, the delivery device 10 further includes a driving member 3, which is connected to the container 1 of the delivery device 10, and is used to reduce the storage capacity of the storage chamber 111a. The driving member 3 is connected to the diversion pipeline 4 through the anti-error member 5. The method before at least part of the fluid is delivered to the receiving target includes: using the driving member 3 to reduce the storage capacity of the storage chamber 111a to discharge part of the fluid in the delivery device 10, and then using the driving member 3 to drive the anti-error member 5 to generate an interaction force with the container 1 to trigger the anti-error member 5 to a state where the restriction effect of the anti-error member 5 on the first outflow end 42 of the diversion pipeline 4 can be released, thereby reducing the possibility that the user discharges the air in the diversion pipeline 4 into the biological body due to misoperation.

[0159] The dotted lines in the figures in this article are all structural section lines.

[0160] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A conveying device for conveying fluid, characterized in that: include: A container having a storage cavity with a variable storage capacity and used for storing a fluid; A fluid valve comprises a valve body and a valve core connected to each other, wherein the valve body is connected to the containing body, and the valve core is movably connected to the valve body so that the fluid valve has at least a first state and a second state. In the first state, the fluid valve is used to circulate the fluid, and in the second state, the fluid valve is used to cut off the fluid.

2. The conveying device according to claim 1, characterized in that The valve body is provided with an accommodating cavity, and the fluid valve also includes a docking piece arranged in the accommodating cavity, the docking piece is provided with a flow path, the flow path can be communicated with the storage cavity, the docking piece is used to be sealed and connected with a pipe joint, the flow path is used to communicate with the inside of the pipe joint, and the pipe joint is used to circulate the fluid.

3. The conveying device according to claim 2, characterized in that: A docking hole is provided at one end of the docking piece for sealing connection with the pipe joint. The docking hole serves as a part of the flow path. The docking hole is in the shape of a truncated cone or a cylinder. The side wall of the docking piece for enclosing the docking hole is used for sealing connection with the pipe joint.

4. The conveying device according to claim 3, characterized in that: The docking piece is also provided with a cylindrical hole, which is connected to the docking hole to form the flow path; the valve core is located in the accommodating cavity, and the side wall of the docking piece used to enclose the cylindrical hole is connected to the valve core, and the docking piece can drive the valve core to slide to a position where the fluid valve is in the first state.

5. The conveying device according to claim 2, characterized in that: The accommodating cavity includes a docking cavity, the docking piece is located in the docking cavity, the docking cavity is in the shape of a truncated cone, and the area of ​​the cross section of the docking cavity perpendicular to the axis gradually decreases along the direction from the accommodating cavity to the storage cavity; the docking piece can slide in the docking cavity, and the side wall of the docking piece can be sealed and connected with the side wall of the valve body for enclosing the docking cavity.

6. The conveying device according to claim 5, characterized in that The docking piece includes a first body and a first protrusion, the first body is provided with the flow path, the first body is used for sealing connection with the pipe joint, the side wall of the first body is protruded with the first protrusion, and the side wall of the valve body for enclosing the docking cavity is interference fit with the side wall of the first protrusion.

7. The conveying device according to claim 6, characterized in that The first body is in a cone shape, a flow cavity is provided in the first body, a flow hole is provided on the outer end surface of the first body, the flow hole is connected with the flow cavity to form the flow path, and the outer end surface of the first body is used for sealing connection with the pipe joint; The valve core is arranged in the accommodating cavity, and the side wall of the first body used for enclosing and forming the flow cavity can abut against the valve core and drive the valve core to slide to a position where the fluid valve is in the first state.

8. The conveying device according to claim 1, characterized in that: The containing body includes a cylinder and a rubber plug, the cylinder is connected to the valve body, a chamber communicating with the valve body is arranged in the cylinder, the rubber plug is arranged in the chamber, the rubber plug is sealingly and slidingly connected to the side wall of the chamber, and the portion of the chamber located between the valve body and the rubber plug is the storage chamber; the conveying device also includes a driving member, which can be connected to or abutted with a side of the rubber plug facing away from the storage chamber.

9. The conveying device according to claim 8, characterized in that The driving member can slide into the chamber in stages relative to the cylinder.

10. The conveying device according to any one of claims 1 to 9, characterized in that: The conveying device further comprises a fluid guiding pipeline, wherein the fluid guiding pipeline comprises a first inflow end which can be connected to the fluid valve and a first outflow end for discharging the fluid.

11. The conveying device according to claim 10, characterized in that The conveying device also includes an anti-error component connected to the diversion pipeline. Before the fluid is discharged, the anti-error component is in a state of being connected to the diversion pipeline; after part of the fluid is discharged, the anti-error component is triggered to a state of being disconnected from the diversion pipeline.

12. The conveying device according to claim 11, characterized in that The conveying device also includes a driving member, which is used to reduce the volume of the storage chamber. The diversion pipeline can be connected to the driving member through the anti-error member. The anti-error member includes a connected anti-error body and a displacement part. The driving member can be displaced and abutted with the displacement part and can drive the displacement part to displace, so that the anti-error member is disconnected from the driving member, and / or the anti-error member is disconnected from the diversion pipeline.

13. The conveying device according to claim 12, characterized in that: The error-proofing component includes a first locking component and a second locking component, wherein the first locking component is engaged with the second locking component, and the first locking component and the second locking component can clamp the driving component and the flow guide pipeline; the first locking component can be disengaged from the second locking component.

14. The conveying device according to claim 13, characterized in that The first locking member or the second locking member includes a protrusion, and the protrusion is spaced apart from the accommodating body; the driving member can drive the protrusion to be pressed against the accommodating body, so that the first locking member and the second locking member are released from the engagement.

15. The conveying device according to claim 13, characterized in that The error-proofing component also includes a first positioning component, the first locking component includes a first hook, the first locking component is provided with a third positioning notch, the second locking component includes a second hook, and the second locking component is provided with a fourth positioning notch, the third positioning notch can accommodate at least a portion of the second hook, and the fourth positioning notch can accommodate at least a portion of the first hook; one side of the first positioning component can abut against the first hook, and the other side of the first positioning component can abut against the second hook to limit the first hook from disengaging from the fourth positioning notch, and limit the second hook from disengaging from the third positioning notch; the first positioning component is spaced apart from the accommodating body, and the driving component can drive the first positioning component to be squeezed against the accommodating body to drive the first positioning component to disengage from the first hook and the second hook.

16. The conveying device according to claim 13, characterized in that The first locking member includes a first hook, and the second locking member includes a second clamping body, a second positioning member and a first elastic member; the second positioning member is connected to the second clamping body through the first elastic member, and under the elastic force of the first elastic member, the second positioning member can be engaged with the first hook; the second positioning member is spaced apart from the accommodating body, and the driving member can drive the second positioning member to be squeezed with the accommodating body to drive the second positioning member to separate from the first hook.

17. The conveying device according to claim 12, characterized in that: The driving member includes a driving part, at least part of the edge of the driving part is inclined relative to the preset moving direction of the driving member, the anti-error member includes a second shell and a fifth positioning member in a slidable connection, the second shell is slidably connected to the driving member, when the fifth positioning member is in a first position relative to the second shell, the diversion pipeline is limited by the fifth positioning member, and when the fifth positioning member is in a second position relative to the second shell, the diversion pipeline can be detached from the fifth positioning member; the driving part can abut against the fifth positioning member, so that after the fifth positioning member can drive the second shell to abut against the containing body, the driving part can also drive the fifth positioning member to slide from the first position to the second position relative to the second shell.

18. The conveying device according to claim 17, characterized in that The fifth positioning member includes a first slider and a second slider that are separated, the second slider being located between the first slider and the driving portion, the second slider being spaced apart from the first slider, and the second shell being engageable with the first slider to limit the first slider to be in the first position relative to the second shell, and the flow guide pipe is limited by the first slider in the first position; the driving portion is capable of pushing the second slider to slide toward the first slider, so that the second slider releases the partial engagement between the first slider and the second shell, and the second slider abuts against the first slider, and the second slider can drive the first slider to slide to the second position relative to the second shell, and the flow guide pipe can be detached from the first slider in the second position.

19. The conveying device according to claim 11, characterized in that The error-proofing component includes a first shell, and the flow guide pipeline includes a bag tube with variable capacity. The bag tube and the first outflow end can be located in the first shell, and the bag tube has a second inflow end and a second outflow end. The second inflow end is used for the fluid to flow into through the first inflow end, and the second outflow end is connected to the first outflow end. Under the action of the fluid pressure, the bag tube can push the first outflow end to move from the inside of the first shell to the outside of the first shell.

20. The conveying device according to claim 19, characterized in that The error-proofing member further comprises a third positioning member, the third positioning member is located in the first housing, and the third positioning member is connected to the outer wall of the first outflow end; A first limiting portion is provided on the inner wall of the first shell, and the third positioning member can be engaged with the first limiting portion to limit the movement of the first outflow end located outside the first shell relative to the first shell; and / or a second limiting portion is provided on the inner wall of the first shell, and the third positioning member can be engaged with the second limiting portion to limit the movement of the first outflow end located inside the first shell relative to the first shell.

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