Application device

Abstract

Provided is an application device that applies a medical device to the skin surface of a host. The application device has a proximal end and a distal end and comprises a first case, a puncture assembly, a movable part connected to the medical device, and a first driving member arranged on the movable part. The first case is configured to adhere to the skin of the host to trigger the movement of the movable part and the puncture assembly towards the distal end. The movable part and the puncture assembly are configured to move towards the distal end jointly when the movable part and the puncture assembly are in a locked state; when the movable part and the puncture assembly are in a released state under the action of the first case, the puncture assembly moves towards the proximal end under the action of the first driving member. At least a portion of a sensor is arranged on the puncture assembly, and the puncture assembly is configured to provide an insertion path for the sensor to be inserted beneath the skin of the host. As such, the puncture assembly can be quickly retracted.

Description

Application device Technical Field

[0001] The utility model generally relates to the field of medical devices, and in particular to an application device. Background Art

[0002] Currently, the main methods for diabetic patients to monitor their blood sugar levels include traditional fingerstick blood tests (Blood Glucose Monitoring, BGM) and continuous glucose monitoring (Continuous Glucose Monitoring, CGM). Continuous glucose monitoring can monitor a patient's blood sugar level in real time and has the ability to detect hidden hyperglycemia and hypoglycemia that are difficult to detect with traditional fingerstick blood tests, making it a new trend in blood sugar monitoring.

[0003] Continuous glucose monitoring devices typically include a glucose sensor inserted beneath the skin to monitor the glucose concentration in subcutaneous tissue fluid in real time, and an electronic device electrically connected to the glucose sensor and applied to the skin surface. Inserting the glucose sensor beneath the skin and applying the electronic device to the skin typically require the aid of an application device. Specifically, the application device may include a puncture assembly capable of piercing the skin. The glucose sensor is inserted beneath the skin through the puncture assembly, and then the puncture assembly is removed from the skin, leaving the glucose sensor subcutaneously.

[0004] In actual applications, the speed at which the puncture assembly is removed from the skin will affect the patient's comfort. Generally speaking, if the puncture assembly cannot be removed from the skin quickly, the patient's discomfort may increase. Summary of the Invention

[0005] The present invention is completed in view of the above-mentioned state of the prior art, and its purpose is to provide an application device for a medical device that can quickly withdraw a puncture assembly and reduce the discomfort of the patient.

[0006] To this end, the present invention provides an application device, which is an application device for applying a medical device to the skin surface of a host, wherein the medical device includes a sensor inserted under the skin of the host and an electronic device electrically connected to the sensor and used to be applied to the skin of the host, the application device has a proximal end and a distal end and includes a first shell, a puncture assembly, a moving body connected to the medical device, and a first driving component arranged on the moving body; the first shell is configured to fit the skin of the host to trigger the moving body and the puncture assembly to move toward the distal end; the moving body and the puncture assembly are configured to: when the moving body and the puncture assembly are in a locked state, they move toward the distal end together; when the moving body and the puncture assembly are in a released state under the action of the first shell, the puncture assembly is moved toward the proximal end under the action of the first driving component; at least a portion of the sensor is arranged in the puncture assembly, and the puncture assembly is configured to provide an insertion path for the sensor to be inserted under the skin of the host.

[0007] In the utility model, the moving body carrying the medical device and the puncture assembly can be moved together from the distal end to the proximal end until the puncture assembly and the sensor are inserted under the skin. After the sensor is inserted under the skin, the puncture assembly can be quickly withdrawn from under the host's skin through the first driving component, thereby reducing the host's discomfort.

[0008] In addition, according to the application device involved in the utility model, optionally, the movable body includes a first opening and a second opening arranged opposite to each other, and when the puncture assembly is at the proximal end, the puncture assembly does not pass through the second opening. In this case, the first opening and the second opening can form a channel, providing a movement channel for the puncture assembly and sensor to be inserted under the skin, and when the puncture assembly is at the proximal end, the puncture assembly does not pass through the second opening, thereby reducing the possibility of the user being injured by the puncture assembly.

[0009] In addition, according to the application device of the present invention, optionally, the first driving component is an elastic element, one end of which abuts the first end of the puncture assembly, and the other end of which abuts the first surface of the moving body. Thus, the elastic element can easily and automatically withdraw the puncture assembly from under the skin.

[0010] Furthermore, according to the application device of the present invention, optionally, when the moving body and the puncture assembly are in a locked state, the first driving component has elastic potential energy. In this case, when the position of the puncture assembly is not restricted by other components, the first driving component can release the elastic potential energy to drive the puncture assembly, thereby enabling the first driving component to quickly withdraw the puncture assembly from beneath the skin.

[0011] In addition, the application device according to the present invention may optionally further include a first locking mechanism, wherein the movable body and the puncture assembly are detachably connected via the first locking mechanism. In this case, the first locking mechanism can lock the movable body and the puncture assembly, thereby enabling the movable body and the puncture assembly to move together from the proximal end to the distal end; when the first locking mechanism is in a released state, the movable body and the puncture assembly can be separated, thereby facilitating the driving of the puncture assembly from the distal end to the proximal end.

[0012] In addition, according to the application device involved in the utility model, optionally, the first locking mechanism includes a clamping portion provided on the puncture assembly and a first clamping slot provided on the movable body; the clamping portion of the puncture assembly is pivotable and, in response to a force directed in a first direction, pivots and disengages from the first clamping slot of the movable body, thereby releasing the first locking mechanism. In this case, the structure of the first locking mechanism can be simplified, and while being able to more stably establish a locked state, it is also easier to release the locked state.

[0013] In addition, according to the application device involved in the utility model, optionally, the movable body is mounted in the hollow portion of the first shell, and the first shell is provided with a protrusion. When the puncture assembly is located at the distal end, the protrusion is configured to apply a force directed in the first direction to the engaging portion of the puncture assembly. In this case, when the puncture assembly moves from the proximal end to the distal end, the protrusion can conveniently change the movable body and the puncture assembly from a locked state to a released state. As a result, the first locking mechanism can be unlocked, allowing the puncture assembly to be separated from the movable body.

[0014] In addition, according to the application device involved in the present invention, optionally, the protrusion has a first guide surface, and the engaging portion of the puncture assembly has a second guide surface. When the first locking mechanism transitions from a locked state to a released state, the first guide surface and the second guide surface cooperate with each other to gradually separate the engaging portion of the puncture assembly from the first engaging groove of the moving body. In this case, the first guide surface and the second guide surface can cooperate with each other to gradually unlock the first locking mechanism, so that the process of inserting the puncture assembly into the skin is a gradual process, thereby providing sufficient time for the puncture assembly to be inserted into the skin to a predetermined depth, and reducing the situation where the puncture assembly fails to fully penetrate the skin to the predetermined depth.

[0015] In addition, according to the application device involved in the present invention, the movable body is optionally provided with a limit block, and the movable body is provided with a limit block, and when the puncture assembly moves from the distal end to the proximal end, the limit block is used to limit the movement of the puncture assembly toward the proximal end. In this case, when the puncture assembly is withdrawn from the skin and moves from the distal end to the proximal end, the limit block can limit the movement distance of the puncture assembly, thereby reducing the impact of the puncture assembly on the application device.

[0016] In addition, according to the application device involved in the utility model, optionally, the movable body includes a main body having a first end, and when the puncture assembly is at the proximal end, the engaging portion of the puncture assembly abuts against the first end of the main body. In this case, when the puncture assembly is at the proximal end, the puncture assembly can be restrained by the first end of the main body and can be more firmly restrained at the proximal end by the movable body, thereby reducing the possibility of the puncture assembly moving toward the distal end, thereby reducing the possibility of the puncture assembly accidentally injuring the user.

[0017] According to the utility model, a medical device application device can be provided which can quickly withdraw the puncture assembly and reduce the discomfort of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Embodiments of the present invention will now be explained in further detail, by way of example only, with reference to the accompanying drawings.

[0019] FIG1 is a schematic diagram showing an application scenario of the medical device involved in the example of the present utility model.

[0020] FIG2A is a schematic diagram showing the entirety of the medical device according to an example of the present invention.

[0021] FIG2B is a schematic diagram showing an overall structure of the sensor according to an example of the present invention.

[0022] FIG3A is a schematic overall diagram showing an application device according to an example of the present invention.

[0023] FIG3B is a schematic diagram showing the structure of the application device according to the example of the present invention after the cap is removed.

[0024] FIG4A is a schematic diagram showing a moving body according to an example of the present invention.

[0025] FIG4B is a schematic diagram showing another viewing direction of the moving body involved in the example of the present invention.

[0026] FIG5A is a schematic diagram showing a puncture assembly according to an example of the present invention.

[0027] FIG. 5B is a schematic diagram showing a support seat according to an example of the present invention.

[0028] FIG5C is a schematic diagram showing another viewing direction of the support seat involved in the example of the present invention.

[0029] FIG5D is a schematic diagram showing a first locking mechanism according to an example of the present invention.

[0030] FIG6A is a schematic diagram showing that the moving body involved in the example of the present invention is located at the proximal end.

[0031] FIG6B is a schematic diagram showing the cooperation between the moving body and the first shell according to an example of the present invention.

[0032] FIG7 is a schematic diagram showing the puncture assembly according to an example of the present invention in a second state.

[0033] FIG8 is a schematic diagram showing the puncture assembly according to the example of the present invention in the third state. DETAILED DESCRIPTION

[0034] Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. In the following description, identical components will be assigned identical reference numerals, and duplicate descriptions will be omitted. In addition, the accompanying drawings are merely schematic, and the proportions of the dimensions of the components or the shapes of the components may differ from the actual ones.

[0035] It should be noted that the terms "include" and "have" and any variations thereof in the present invention, such as a process, method, system, product or device that includes or has a series of steps or units, are not necessarily limited to those steps or units clearly listed, but may include or have other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0036] In the present invention, the term "analyte" can be one or more of glucose, acetylcholine, amylase, bilirubin, cholesterol, chorionic gonadotropin, creatine kinase, creatine, creatinine, DNA, fructosamine, glucose, glutamine, growth hormone, hormone, ketone body, lactate, oxygen, peroxide, prostate-specific antigen, prothrombin, RNA, thyroid-stimulating hormone or troponin.

[0037] In the present invention, the term "host" may refer to a human body or an animal, and the host may also be referred to as a user or a patient.

[0038] In the present invention, the term "abutment" may refer to any form of direct contact, fixed connection or indirect contact.

[0039] FIG1 is a schematic diagram illustrating an application scenario of a medical device 20 according to an example of the present invention. FIG2A is a schematic diagram illustrating the entirety of the medical device 20 according to an example of the present invention. FIG2B is a schematic diagram illustrating the entirety of the sensor 21 according to an example of the present invention. FIG3A is a schematic diagram illustrating the entirety of the application device 10 according to an example of the present invention. FIG3B is a schematic diagram illustrating the structure of the application device 10 according to an example of the present invention with the cap 11 removed.

[0040] In some examples, referring to FIG. 1 , a medical device 20 may be applied to a host to monitor the concentration of an analyte in the host.

[0041] 1 and 2A , in some examples, a medical device 20 may include a sensor 21 inserted under the skin of a host and an electronic device 22 electrically connected to the sensor 21 and adapted to be attached to the skin of the host.

[0042] In some examples, the electronic device 22 can obtain the concentration value of the analyte measured by the sensor 21 and transmit it to the control unit.

[0043] In some examples, the control unit may be a smart terminal, such as a smart mobile phone, a smart tablet computer, or a computer device. In some examples, the electronic device 22 may establish a communication connection with the control unit via a wireless link.

[0044] In some examples, the electronic device 22 may include an adhesive material for adhering the electronic device 22 to the surface of the skin.

[0045] 2B , in some examples, the sensor 21 may include a first portion 211 and a second portion 212 .

[0046] In some examples, the first portion 211 of the sensor 21 may include an intracorporeal portion 2111 inserted under the host's skin. In some examples, the second portion 212 of the sensor 21 may include an electrical contact portion 2121 electrically connected to the electronic device 22.

[0047] In some examples, the in-vivo portion 2111 of the sensor 21 may include a sensing layer that can electrochemically react with the analyte to generate an electrical signal representative of the analyte concentration value.

[0048] 3A , in some examples, the application device 10 may include a cap 11. In some examples, the cap 11 may be connected to the operating portion of the application device 10 via threads.

[0049] In actual operation, after the cap 11 is removed, the application device 10 can be placed on the skin surface of the host to start the application action.

[0050] In some examples, the application device 10 may have a proximal end and a distal end. In some examples, the proximal end may refer to a position of the application device 10 that is away from the skin surface, and the distal end may refer to a position of the application device 10 that is close to the skin surface. For example, in FIG3A , the position of the cap 11 may be the distal end.

[0051] Referring to Section 3B, in some examples, the medical device 20 is detachably connected to the application device 10. In some examples, the application device 10 can apply the medical device 20 to the skin surface of the host. In some examples, the action of the application device 10 applying the medical device 20 to the skin surface of the host (which can be simply referred to as the application action) can also be referred to as the application device 10 delivering the medical device 20 to the skin surface of the host (which can be simply referred to as the delivery action).

[0052] In some examples, the application device 10 completing the application action can also be understood as the application device 10 transporting the medical device 20 from the proximal end of the application device 10 to the distal end of the application device 10 .

[0053] In some examples, the application device 10 can be separated from the medical device after completing the application action.

[0054] Fig. 4A is a schematic diagram showing the moving body 12 according to the example of the present invention. Fig. 4B is a schematic diagram showing another viewing direction of the moving body 12 according to the example of the present invention.

[0055] In some examples, the application device 10 may include a movable body 12, which may be connected to a medical device 20. In some examples, the movable body 12 may be detachably connected to the medical device 20. In this case, the movable body 12 can deliver the medical device 20 to the host's skin, and after the electronic device 22 of the medical device 20 is attached to the host's skin surface, the movable body 12 can be separated from the medical device 20, that is, the application device 10 is separated from the medical device 20.

[0056] In some examples, the moving body 12 may include a first surface 121 (see FIG. 4A ) and a second surface 122 (see FIG. 4B ).

[0057] In some examples, the second surface 122 may be provided with a first space 1221 , and the moving body 12 may accommodate the medical device 20 . Thus, the medical device 20 may be placed in the first space 1221 and may be detachably connected to the moving body 12 .

[0058] In some examples, a clamping portion 12212 may be provided around the peripheral wall 12211 of the first space 1221 , and the clamping portion 12212 may be detachably connected to the medical device 20 .

[0059] In some examples, the size of the peripheral wall 12211 of the first space 1221 may match the outer peripheral size of the electronic device 22 so that the electronic device 22 is securely mounted in the first space 1221 .

[0060] 4A , the moving body 12 may include an oppositely disposed first opening 123 and a second opening 124. In this case, the first opening 123 and the second opening 124 may form a channel, providing a movement channel for the puncture assembly 13 and the sensor 21 to be inserted under the skin (described later).

[0061] In some examples, the moving body 12 may have a first axis X. In some examples, the first axis X may be a central axis of the moving body 12 .

[0062] FIG5A is a schematic diagram illustrating the puncture assembly 13 according to an example of the present invention. FIG5B is a schematic diagram illustrating the support base 131 according to an example of the present invention. FIG5C is a schematic diagram illustrating another viewing direction of the support base 131 according to an example of the present invention. FIG5D is a schematic diagram illustrating the first locking mechanism 14 according to an example of the present invention.

[0063] In some examples, the application device 10 may include a puncture assembly 13. In this case, the sensor 21 can be inserted under the skin through the puncture assembly 13.

[0064] In some examples, at least a portion of sensor 21 may be disposed within puncture assembly 13, which may be configured to provide an insertion path for sensor 21 to be inserted beneath the host's skin. In this case, since sensor 21 is generally made of a flexible material, puncturing the skin using puncture assembly 13 facilitates insertion of sensor 21 beneath the host's skin.

[0065] 5A , in some examples, the puncture assembly 13 may include a support 131 and a sharp body 132 .

[0066] 5A , the sharp body 132 may include a holding portion 1321 and a sharp portion 1322 . In some examples, the support base 131 may be connected to the holding portion 1321 .

[0067] In some examples, referring to FIG. 5A , the support base 131 may have a hollow second space 1311 , and the retaining portion 1321 may be received in the second space 1311 of the support base 131 to form a fixed connection between the support base 131 and the retaining portion 1321 .

[0068] 5A , the sharp portion 1322 may have an open slot 13221 , and at least a portion of the sensor 21 may be disposed in the open slot 13221 of the sharp portion 1322 . Specifically, the first portion 211 of the sensor 21 may be disposed in the open slot 13221 .

[0069] In some examples, the application device 10 may include a first locking mechanism 14, and the moving body 12 and the puncture assembly 13 may be detachably connected via the first locking mechanism 14 (see FIG5D ). In this case, the first locking mechanism 14 can lock the moving body 12 and the puncture assembly 13, thereby enabling the moving body 12 and the puncture assembly 13 to move together from the proximal end to the distal end; when the first locking mechanism 14 is in a released state, the moving body 12 and the puncture assembly 13 can be separated, thereby facilitating the driving of the puncture assembly 13 from the distal end to the proximal end.

[0070] In some examples, when the first locking mechanism 14 is in a locked state, the moving body 12 can be fixedly connected to the puncture assembly 13, and when the first locking mechanism 13 is in a released state (also referred to as an unlocked state), the moving body 12 can be separated from the puncture assembly 13. In this case, when the first locking mechanism 14 is in a locked state, during the process of inserting the sensor 21 under the host's skin, the first locking mechanism 14 can keep the relative positions of the puncture assembly 13 and the moving body 12 fixed, that is, the relative positions of the puncture assembly 13 and the sensor 21 fixed, thereby facilitating the insertion of the sensor 21 under the skin; when the first locking mechanism 14 is in a released state, the moving body 12 and the puncture assembly 13 can be in a separated state, thereby facilitating the independent movement of the puncture assembly 13.

[0071] In some examples, the first locking mechanism 14 may include a snap-fit ​​portion 133 (see FIG. 5B ) provided on the puncture assembly 13 and a first snap-fit ​​groove 125 (see FIG. 4A ) provided on the movable body 12. In this case, the snap-fit ​​portion 133 of the puncture assembly 13 can abut against the first snap-fit ​​groove 125 of the movable body 12, thereby placing the first locking mechanism 14 in a locked state, thereby maintaining a fixed relative position between the puncture assembly 13 and the movable body 12.

[0072] In some examples, the engaging portion 133 of the puncture assembly 13 may be pivotable. Specifically, the engaging portion 133 of the puncture assembly 13 may be deflected by an external force.

[0073] 5A , the puncture assembly 13 can have a second axis Y. In some examples, the second axis Y can be a central axis of the puncture assembly 13 .

[0074] In some examples, the engaging portion 133 of the puncture assembly 13 can pivot in response to a force directed in the first direction, disengaging from the first engaging slot 125 of the moving body 12, thereby releasing the first locking mechanism 14. In this case, the structure of the first locking mechanism 14 can be simplified, and the locked state can be more stably established while also being easier to release.

[0075] In some examples, the first direction may be a direction pointing toward the second axis Y. In some examples, the first direction may be a direction perpendicular to the second axis Y (see the direction of the black arrow in FIG. 5A ). In some examples, the first direction may also be a direction that causes the engaging portion 133 of the puncture assembly 13 to deflect toward the second axis Y.

[0076] In some examples, the clamping portion 133 of the puncture assembly 13 can have an expanded state and a deflected state. Specifically, when the clamping portion 133 is not subjected to a force directed in the first direction, the clamping portion 133 can be in the expanded state, and when the clamping portion 133 is subjected to a force directed in the first direction, the clamping portion 133 can be in the deflected state.

[0077] In some examples, when the engaging portion 133 of the puncture assembly 13 is locked with the first engaging slot 125 of the moving body 12, the engaging portion 133 of the puncture assembly 13 may be in an expanded state and engaged in the first engaging slot 125 of the moving body 12 (see FIG. 5D ).

[0078] In some examples, when the engaging portion 133 of the puncture assembly 13 is subjected to a force directed in a first direction, the engaging portion 133 of the puncture assembly 13 may be in a deflected state (also referred to as a pivoted state).

[0079] Figure 6A is a schematic diagram showing the proximal end of the moving body 12 according to an example of the present invention. In Figure 6A , the first portion 211 of the sensor 21 is separated from the sharp portion 1322 to better illustrate the first portion 211 of the sensor 21. In actual use, the first portion 211 of the sensor 21 can be located in the open slot 13221 of the sharp portion 1322.

[0080] Figure 6A also shows the position states of the various components when the application device 10 has not yet started the conveying action. Figure 6B is a schematic diagram showing the cooperation between the moving body 12 and the first housing 16 involved in the example of the present utility model.

[0081] Figure 7 is a schematic diagram showing the puncture assembly 13 according to an example of the present invention in a second state. Figure 8 is a schematic diagram showing the puncture assembly 13 according to an example of the present invention in a third state.

[0082] In some examples, the puncture assembly 13 may include a first state, a second state, and a third state.

[0083] In some examples, the puncture assembly 13 being in the first state can be understood as the puncture assembly 13 being connected to the moving body 12 via the first locking mechanism 14 (see FIG. 5D and FIG. 6A ).

[0084] In addition, the puncture assembly 13 being in the second state can be understood as the first locking mechanism 14 being unlocked, the puncture assembly 13 being separated from the moving body 12, and the puncture assembly 13 being inserted under the skin of the host (see FIG. 7 ).

[0085] In addition, the puncture assembly 13 being in the third state can be understood as the puncture assembly 13 being completely located inside the application device 10 (see FIG. 8 ).

[0086] In the present invention, when the puncture assembly 13 is in the first state, the relative position of the puncture assembly 13 and the moving body 12 is fixed, which can facilitate the insertion of the puncture assembly 13 under the skin and can facilitate the insertion of the sensor 21 under the skin; when the puncture assembly 13 is in the second state, the puncture assembly 13 and the moving body 12 are in a separated state, and the puncture assembly 13 can be removed from under the skin without affecting the moving body 12. Therefore, in the process of retrieving the puncture assembly 13, the moving body 12 can simultaneously press the electronic device 22 to the skin surface, so that the process of retrieving the puncture assembly 13 does not affect the application of the electronic device 22 on the skin surface; when the puncture assembly 13 is in the third state, the application device 10 has completed the conveying action of the medical device 20, and there is a possibility that the application device 10 will be abandoned. By completely covering the puncture assembly 13 with the application device 10, the possibility of the user being harmed by the puncture assembly 13 can be reduced.

[0087] In some examples, when the puncture assembly 13 is in the first state and the second state, at least a portion of the puncture assembly 13 and at least a portion of the sensor 21 can pass through the second opening 124 (see Figures 4A and 5D) of the moving body 12. Thus, the puncture assembly 13 and the sensor 21 can be inserted under the skin of the host.

[0088] In some examples, the first axis X and the second axis Y may coincide. In some examples, the central axes of the moving body 12 and the puncture assembly 13 may coincide.

[0089] In the present invention, the application device 10 can deliver the medical device 20 to the host's skin, so that the sensor 21 of the medical device 20 is inserted under the skin and the electronic device 22 is applied to the host's skin. This will be described below with reference to Figures 6A, 6B, and 7.

[0090] In some examples, the moving body 12 and the puncture assembly 13 can be configured to move toward the distal end together when the moving body 12 and the puncture assembly 13 are in a locked state. In this case, the medical device 20 can be moved from the proximal end to the distal end for application to the skin surface.

[0091] In some examples, the application device 10 can be configured to move the moving body 12 provided with the medical device 20 and the puncture assembly 13 in the first state from the proximal end to the distal end, and the puncture assembly 13 can be changed from the first state to the second state (see Figures 6A and 7).

[0092] 6A , in some examples, the application device 10 may include a second housing 15. In some examples, the application device 10 may include a first housing 16. In some examples, the first housing 16 may be sleeved within the hollow portion of the second housing 15, and the first housing 16 and the second housing 15 may be relatively movable.

[0093] In some examples, the second end 161 of the first housing 16 can abut against the host's skin.

[0094] In some examples, the first housing 16 can be configured to fit against the host's skin to trigger the movement body 12 and the puncture assembly 13 to move distally.

[0095] 6A , in some examples, the applying device 10 may include a second locking mechanism 17. In this case, the second locking mechanism 17 can enable the relative position between the second housing 15 and the moving body 12 to have two states: locked and unlocked.

[0096] In some examples, the moving body 12 and the second shell 15 can be detachably connected through a second locking mechanism 17. When the second locking mechanism 17 is in a locked state, the moving body 12 can be fixedly connected to the second shell 15. When the second locking mechanism 17 is in a released state (also called an unlocked state), the moving body 12 can be separated from the second shell 15.

[0097] In some examples, when the moving body 12 is at the proximal end, the second housing 15 and the moving body 12 can be fixedly connected via the second locking mechanism 17. Thus, the applying device 10 can be in a state where the applying action is not started or is ready to be started.

[0098] In some examples, the second locking mechanism 17 may include a first snap-fitting portion 151 (see Figure 6A) provided on the second shell 15 and a second snap-fitting slot 126 (see Figures 4A and 6A) provided on the moving body 12. The second snap-fitting slot 126 of the moving body 12 may be pivotable and, in response to a force directed in the second direction, separated from the first snap-fitting portion 151 of the second shell 15 to place the second locking mechanism 17 in a released state.

[0099] In some examples, the second direction may be a direction pointing toward the first axis X. In some examples, the second direction may be a direction perpendicular to the first axis X (see the directions indicated by black arrows D1 and D2 in FIG. 6A ). In some examples, the second direction may also be a direction that causes the second engaging groove 126 of the moving body 12 to deflect toward the first axis X.

[0100] In some examples, the second direction and the first direction can be the same.

[0101] 6A , in some examples, the first housing 16 may move relative to the second housing 15 toward the first end 152 of the second housing 15 , and the first end 162 of the first housing 16 may apply a force directed in the second direction to the second slot 126 of the moving body 12 .

[0102] Specifically, the application device 10 can be placed on the skin surface of the host, and the second end 161 of the first shell 16 can be against the skin surface. At this time, a force toward the skin can be applied to the second shell 15 to move the first shell 16 relative to the second shell 15 toward the first end 152 of the second shell 15. The first end 162 of the first shell 16 can apply a force pointing in the second direction (for example, the direction indicated by the black arrows D1 and D2 in Figure 6A) to the second slot 126 of the moving body 12. In this case, the second locking mechanism 17 can be unlocked, separating the moving body 12 from the first shell 16, thereby facilitating the movement of the moving body 12 and the puncture assembly 13 toward the distal end.

[0103] 6A , the application device 10 may include a drive component 18. In this case, the application device 10 can automatically complete the application action and the action of withdrawing the puncture assembly 13 from under the skin through the drive component 18.

[0104] In some examples, referring to FIG6A , the driving component 18 may include a second driving component 182. In this case, the second driving component 182 can drive the moving body 12 to move the puncture assembly 13 from the proximal end to the distal end.

[0105] In some examples, the second driving component 182 is an elastic element, one end of which can abut against the first end 152 of the second shell 15, and the other end of which can abut against the first surface 121 of the moving body 12 (see Figure 6B).

[0106] In some examples, the second drive member 182 can be a spring.

[0107] In some examples, the second driving component 182 may also abut against a rib provided on the moving body 12 (see FIG. 6B ).

[0108] In some examples, when the moving body 12 is at the proximal end, the second driving component 182 may have elastic potential energy. In this case, when the position of the moving body 12 is not restricted by other components (such as the second locking mechanism 17), that is, when the moving body 12 can move from the proximal end to the distal end, the second driving component 182 can release the elastic potential energy, thereby driving the moving body 12.

[0109] In some examples, the second driving component 182 may be a spring, and when the moving body 12 is at the proximal end, the second driving component 182 may be in a compressed state.

[0110] In the present invention, after the application device 10 delivers the medical device 20 to the host's skin, the application device 10 can move the puncture assembly 13 into the application device 10. This will be described below with reference to Figures 6A, 6B, 7 and 8.

[0111] 6B and 7 , in some examples, the moving body 12 may be sleeved in the hollow portion of the first housing 16 . In this case, the moving body 12 may be facilitated to move relative to the first housing 16 .

[0112] In some examples, the first housing 16 may be provided with a protrusion 163 (see FIG7 ). When the puncture assembly 13 is at the distal end, the protrusion 163 may be configured to apply a force directed in a first direction (e.g., the direction indicated by the black arrows D3 and D4 in FIG7 ) to the engaging portion 133 of the puncture assembly 13. In this case, when the puncture assembly 13 moves from the proximal end to the distal end, the protrusion 163 can conveniently shift the movable body 12 and the puncture assembly 13 from a locked state to a released state (i.e., the puncture assembly 13 changes from the first state to the second state). This unlocks the first locking mechanism 14 (see FIG5D ), allowing the puncture assembly 13 to separate from the movable body 12.

[0113] 7 and 8 , in some examples, the protrusion 163 may have a first guide surface 1631. In some examples, the engaging portion 133 of the puncture assembly 13 may have a second guide surface 1331 (see FIG. 5B , FIG. 5C and FIG. 7 ).

[0114] In some examples, when the first locking mechanism 14 changes from a locked state to a released state (i.e., when the puncture assembly 13 changes from a first state to a second state), the first guide surface 1631 and the second guide surface 1331 cooperate with each other to gradually separate the clamping portion 133 of the puncture assembly 13 from the first clamping groove 125 of the moving body 12.

[0115] Referring to FIG7 , as the puncture assembly 13 transitions from the first state to the second state, the first guide surface 1631 and the second guide surface 1331 cooperate to gradually increase the deflection of the engaging portion 133 of the puncture assembly 13 during pivoting, until the engaging portion 133 of the puncture assembly 13 is separated from the first engaging groove 125 (see FIG5D ) of the movable body 12. Specifically, along the path of movement of the puncture assembly 13 from the proximal end to the distal end, the first guide surface 1631 and the second guide surface 1331 gradually retract toward the second axis Y of the puncture assembly 13, i.e., along directions D3 and D4 in FIG7 . In this manner, the first guide surface 1631 and the second guide surface 1331 cooperate to gradually unlock the first locking mechanism 14, enabling a gradual insertion of the puncture assembly 13 into the skin. This provides sufficient time for the puncture assembly 13 to penetrate the skin to the predetermined depth, thereby reducing the likelihood of the puncture assembly 13 failing to penetrate the skin to the predetermined depth.

[0116] 7 , in some examples, the driving component 18 may include a first driving component 181 . In this case, the first driving component 181 can drive the puncture assembly 13 to move into the interior of the application device 10 .

[0117] In some examples, the first driving component 181 may be disposed on a moving body.

[0118] In some examples, the moving body 12 and the puncture assembly 13 can be configured such that when the moving body 12 and the puncture assembly 13 are in a released state under the action of the first shell 16 , the puncture assembly 13 moves toward the proximal end under the action of the first driving component 181 .

[0119] In some examples, the first driving component 181 can drive the puncture assembly 13 to move from the distal end to the proximal end to the third state.

[0120] Referring to FIG7 , in some examples, first driving member 181 may be an elastic element, one end of which may abut against first end 134 of puncture assembly 13, and the other end of which may abut against first surface 121 (see FIG4A ) of moving body 12. Thus, the elastic element can easily and conveniently achieve the function of automatically withdrawing the puncture assembly from beneath the skin.

[0121] In some examples, the first driving member 181 may be a spring.

[0122] In some examples, when the moving body 12 and the puncture assembly 13 are in a locked state, the first driving component 181 may have elastic potential energy. In this case, when the position of the puncture assembly 13 is not restricted by other components, the first driving component 181 can release the elastic potential energy, thereby driving the puncture assembly 13, thereby enabling the first driving component 181 to quickly withdraw the puncture assembly 13 from under the skin.

[0123] In some examples, when the puncture assembly 13 is in the second state, the first driving component 181 may have elastic potential energy.

[0124] In some examples, the first driving component 181 may be a spring, and when the puncture assembly 13 is in the second state, the first driving component 181 may be in a compressed state.

[0125] Referring to Figure 8 , in some examples, the moving body 12 can be provided with a limit block 127. When the puncture assembly 13 moves from the distal end to the proximal end, the limit block 127 can be used to restrict the proximal movement of the puncture assembly 13. Thus, when the puncture assembly 13 moves from the distal end to the proximal end (i.e., when the puncture assembly 13 is withdrawn from the skin), the limit block 127 can limit the travel distance of the puncture assembly 13, thereby reducing the possibility of the puncture assembly 13 impacting other components.

[0126] 8 , in some examples, when the puncture assembly 13 is in the third state, the clamping portion 133 of the puncture assembly 13 may be in an expanded state.

[0127] 8 , in some examples, the movable body 12 may include a main body 128. When the puncture assembly 13 is at the proximal end, the engaging portion 133 of the puncture assembly 13 may engage with the first end 1281 of the main body 128. In this case, when the puncture assembly 13 is at the proximal end, the puncture assembly 13 can be restrained by the first end 1281 of the main body 128 and can be more firmly restrained at the proximal end by the movable body 12, thereby reducing the possibility of the puncture assembly 13 moving toward the distal end and preventing the puncture assembly 13 from accidentally injuring the user.

[0128] In some examples, when the puncture assembly 13 is in the third state, the first drive component 181 can be in a compressed state. In other words, after the first drive component 181 moves the puncture assembly 13 from the distal end to the proximal end, the first drive component 181 still exerts an expansion force on the puncture assembly 13. This can more firmly hold the puncture assembly 13 at the proximal end.

[0129] 8 , in some examples, when the puncture assembly 13 is at the proximal end, the puncture assembly 13 does not pass through the second opening 124 of the moving body 12. Thus, when the puncture assembly 13 is at the proximal end, the puncture assembly 13 does not pass through the second opening 124, thereby reducing the possibility of the user being injured by the puncture assembly 13.

[0130] 7 and 8 , in some examples, the applying device 10 may include a third locking mechanism 19 . In this case, the third locking mechanism 19 can lock the first housing 16 with the second housing 15 to restrict movement of the first housing 16 relative to the second housing 15 .

[0131] In some examples, the first housing 16 and the second housing 15 can be connected via a third locking mechanism 19. Specifically, referring to FIG8 , while the first housing 16 moves toward the first end 152 of the second housing 15 to unlock the first locking mechanism 14, the third locking mechanism 19 can lock the first housing 16 with the second housing 15. Thus, after the application device 10 completes the delivery operation, the first housing 16 can no longer move relative to the second housing 15, thereby preventing the application device 10 from being improperly reused.

[0132] In some examples, the third locking mechanism 19 may include a second engaging portion 153 provided on the second housing 15 and a locking slot 164 provided on the first housing 16 (see FIG. 6B ). In this case, when the first housing 16 moves toward the first end 152 of the second housing 15 to unlock the first locking mechanism 14, the locking slot 164 of the first housing 16 can engage with the second engaging portion 153 of the second housing 15 to lock the positional relationship between the first housing 16 and the second housing 15.

[0133] The present invention can provide an application device 10, which is an application device 10 for applying a medical device 20 to the skin surface of a host. The medical device 20 may include a sensor 21 inserted under the skin of the host and an electronic device 22 electrically connected to the sensor 21 and used to be applied to the skin of the host. The application device 10 may have a proximal end and a distal end and include a first shell 16, a puncture assembly 13, a moving body 12 connected to the medical device 20, and a first driving component 181 provided on the moving body 12; the first shell 16 may be configured to fit the host's skin. The skin triggers the moving body 12 and the puncture assembly 13 to move distally; the moving body 12 and the puncture assembly 13 can be configured as follows: when the moving body 12 and the puncture assembly 13 are in a locked state, they move together toward the distal end; when the moving body 12 and the puncture assembly 13 are in a released state under the action of the first shell 16, the puncture assembly 13 moves toward the proximal end under the action of the first driving component 181; at least a portion of the sensor 21 can be arranged in the puncture assembly 13, and the puncture assembly 13 can be configured to provide an insertion path for the sensor 21 to be inserted under the skin of the host.

[0134] In the present invention, the moving body 12 carrying the medical device 20 and the puncture assembly 13 can be moved together from the distal end to the proximal end of the application device 10 until the puncture assembly 13 and the sensor 21 are inserted under the skin. After the sensor 12 is inserted under the skin, the puncture assembly 13 can be quickly withdrawn from under the host's skin through the first driving component 181, thereby reducing the host's discomfort.

[0135] Although the present invention has been described in detail above with reference to the accompanying drawings and embodiments, it should be understood that the above description does not limit the present invention in any form. Those skilled in the art may modify and alter the present invention as needed without departing from the spirit and scope of the present invention, and such modifications and alterations are intended to fall within the scope of the present invention.

Claims

1. An application device for applying a medical device to the skin surface of a host, wherein the medical device comprises a sensor inserted under the host's skin and an electronic device electrically connected to the sensor and for application to the host's skin, characterized in that: The application device has a proximal end and a distal end and includes a first housing, a puncture assembly, a moving body connected to the medical device, and a first drive component disposed on the moving body; The first housing is configured to fit against the host's skin to trigger the moving body and the puncture assembly to move toward the distal end; The moving body and the puncture assembly are configured such that: when the moving body and the puncture assembly are in a locked state, they move together toward the distal end; when the moving body and the puncture assembly are in a released state under the action of the first housing, the puncture assembly moves toward the proximal end under the action of the first driving component; At least a portion of the sensor is disposed in the puncture assembly, and the puncture assembly is configured to provide an insertion path for the sensor to be inserted under the skin of a host.

2. The application device according to claim 1, characterized in that The moving body comprises a first opening and a second opening which are arranged opposite to each other. When the puncture assembly is at the proximal end, the puncture assembly does not pass through the second opening.

3. The application device according to claim 1, characterized in that The first driving component is an elastic element, one end of the first driving component abuts against the first end of the puncture assembly, and the other end of the first driving component abuts against the first surface of the moving body.

4. The application device according to claim 3, characterized in that When the moving body and the puncture assembly are in a locked state, the first driving component has elastic potential energy.

5. The application device according to claim 1, characterized in that It also includes a first locking mechanism, and the moving body and the puncture assembly are detachably connected through the first locking mechanism.

6. The application device according to claim 5, characterized in that The first locking mechanism includes a clamping portion provided on the puncture assembly and a first clamping slot provided on the moving body; the clamping portion of the puncture assembly can pivot and pivot in response to a force directed in a first direction, and is separated from the first clamping slot of the moving body, so that the first locking mechanism is in a released state.

7. The application device according to claim 6, characterized in that The moving body is sleeved in the hollow portion of the first shell. The first shell is provided with a protrusion. When the puncture assembly is located at the distal end, the protrusion is configured to apply a force pointing to the first direction to the clamping portion of the puncture assembly.

8. The application device according to claim 7, characterized in that The protrusion has a first guide surface, and the clamping portion of the puncture assembly has a second guide surface. When the first locking mechanism changes from a locked state to a released state, the first guide surface and the second guide surface cooperate with each other to gradually separate the clamping portion of the puncture assembly from the first clamping groove of the moving body.

9. The application device according to claim 1, characterized in that The moving body is provided with a limit block, and when the puncture assembly moves from the distal end to the proximal end, the limit block is used to limit the movement of the puncture assembly toward the proximal end.

10. The application device according to claim 1, characterized in that The moving body includes a main body having a first end. When the puncture assembly is at the proximal end, the clamping portion of the puncture assembly abuts against the first end of the main body.

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