Application device

Abstract

The present disclosure describes an application device. According to the present disclosure, it is possible to provide an application device that can apply a medical instrument to a host.

Description

[0001] This application is filed on August 31, 2021 、Application No. 2021110169660 、The name of the invention is Able to Auxiliary device for automatic retraction A divisional application for a patent application. Technical Field

[0002] The present disclosure relates to an application device. Background Art

[0003] For the needs of clinical diagnosis or personal health monitoring, for example, for diabetic patients, it is necessary to monitor the glucose concentration in tissue fluid in real time and continuously on a daily basis, and to adjust the glucose concentration in a timely manner by adjusting diet or applying drug treatment, so as to reduce and reduce the occurrence of complications caused by abnormal glucose concentration.

[0004] Currently, users usually use a glucose sensor that can be inserted under the skin and can react with glucose in the interstitial fluid and an electronic device that is applied to the skin and connected to the glucose sensor to monitor the glucose concentration in the interstitial fluid. In order to insert the glucose sensor under the skin and apply the electronic device to the skin, an insertion device is usually required. Specifically, the insertion device may include a needle that can pierce the skin, the glucose sensor is inserted under the skin through the needle, and then the needle is separated from the glucose sensor and removed from the skin.

[0005] However, in the above prior art, the process of taking the needle out of the skin needs to be driven by manpower. In this case, since the timing of taking the needle out of the skin may be difficult to control accurately, the operation of taking the needle out of the skin may be complicated, and the glucose sensor may not be inserted into the desired position. Summary of the invention

[0006] The present disclosure is made in view of the above-mentioned prior art conditions, and its purpose is to provide an auxiliary device that can automatically retract the puncture member and can more accurately control the timing of the puncture member leaving the host.

[0007] To this end, the present disclosure provides an auxiliary device capable of automatic retraction, which is an auxiliary device for placing a medical device under the skin of a host, the auxiliary device comprising a shell, an auxiliary mechanism, a driving mechanism, and a trigger mechanism, the shell comprising a proximal end close to the host and a distal end away from the host during operation, the auxiliary mechanism comprising a moving body configured to be movable relative to the shell, a housing portion provided on the moving body and configured to receive and accommodate the medical device, a retaining portion provided on the moving body, and a puncture member releasably retained on the retaining portion and configured to be movable relative to the retaining portion when released, the driving mechanism being configured to apply an action to the puncture member in a manner toward the distal end, the triggering mechanism being configured to release the puncture member by the retaining portion, when the moving body approaches the proximal end, the medical device accommodated in the retaining portion is at least partially placed under the skin of the host through the puncture member, and the triggering mechanism releases the puncture member and the driving mechanism drives the puncture member toward the distal end to leave the host.

[0008] In the auxiliary device involved in this embodiment, the housing includes a proximal end close to the host and a distal end away from the host during operation, a receiving portion configured to receive and accommodate the medical device, and a puncture member configured to be movable relative to the receiving portion, which is arranged on the moving body, and when the moving body approaches the proximal end, the medical device is at least partially placed under the skin of the host, and the puncture member is released and driven toward the distal end to leave the host. In this case, when the medical device is placed under the skin of the host through the puncture member, the puncture member can automatically leave the host through the trigger mechanism and the drive mechanism, thereby providing a mechanism for the automatic retraction of the puncture member and more accurately controlling the timing of the puncture member leaving the host.

[0009] In addition, in the auxiliary device of this embodiment, optionally, the puncture member includes a locking portion configured to be releasably interlocked with the holding portion. Thus, the puncture member can be releasably held in the holding portion through the cooperation between the locking portion and the holding portion.

[0010] In addition, in the auxiliary device involved in this embodiment, optionally, the holding portion and the locking portion are releasably interlocked by at least one structure of a buckle, a hook, a latch, or a pin. In this case, the holding portion and the locking portion are releasably interlocked by at least one structure of a buckle, a hook, a latch, or a pin, thereby providing an interlocking method that is easy to release.

[0011] In addition, in the auxiliary device of this embodiment, optionally, the trigger mechanism is configured to separate the holding portion from the locking portion so that the puncture member is released. Thus, the puncture member can be conveniently released by the trigger mechanism.

[0012] In addition, in the auxiliary device involved in this embodiment, optionally, the shell includes a first shell and a second shell that can be assembled to the first shell, the second shell has a first limiting mechanism and a second limiting mechanism that are connected to each other, the second limiting mechanism is configured to limit the application position of the medical device, the auxiliary mechanism is assembled to the first limiting mechanism and the moving body can move along the first limiting mechanism. In this case, the movement of the moving body is limited by the first limiting mechanism of the second shell, and the application position of the medical device is limited by the second limiting mechanism of the second shell, which can help to more accurately place the medical device under the skin of the host.

[0013] In addition, in the auxiliary device involved in this embodiment, optionally, the moving body has a first bottom near the distal end, a second bottom near the proximal end, a side wall connecting the first bottom and the second bottom, and a hollow portion formed between the first bottom, the second bottom and the side wall, and the receiving portion is arranged at the second bottom and can move along the hollow portion when the puncture member is released. In this case, the hollow portion is formed by the first bottom, the second bottom, and the side wall, and the receiving portion is arranged at the second bottom, and the puncture member is arranged in the hollow portion, thereby facilitating the puncture member to move relative to the receiving portion when it is released.

[0014] In addition, in the auxiliary device of the present embodiment, optionally, the puncture member includes a sharp object having a groove, and a support seat for supporting the sharp object, the medical device can be placed in whole or in part in the groove of the sharp object, and the driving mechanism is configured to exert an action on the support seat. In this case, by placing the medical device in whole or in part in the groove of the sharp object, it is possible to facilitate the medical device to be at least partially placed under the skin of the host through the puncture member.

[0015] In addition, in the auxiliary device involved in this embodiment, optionally, the medical device includes a sensor that can be placed under the skin of the host, and an application portion connected to the sensor and applicable to the body surface of the host. In this case, the sensor that can be placed under the skin of the host and the application portion that can be applied to the body surface of the host are connected to the sensor, thereby facilitating the acquisition of analyte information of the tissue fluid.

[0016] In addition, in the auxiliary device of this embodiment, optionally, when the moving body moves along the first limiting mechanism, the receiving portion moves along the second limiting mechanism. In this case, by moving the moving body along the first limiting mechanism and the receiving portion along the second limiting mechanism, the medical device received in the receiving portion can be more accurately placed under the skin of the host at a desired position.

[0017] In addition, in the auxiliary device involved in this embodiment, optionally, the first limiting mechanism limits the stroke of the moving body in the direction along the central axis of the auxiliary device. In this case, the stroke of the moving body in the direction along the central axis of the auxiliary device is limited by the first limiting mechanism, so that the medical device accommodated in the accommodation portion can be pushed a predetermined distance more accurately, so that the medical device can be placed under the skin of the host more accurately.

[0018] In addition, in the auxiliary device involved in this embodiment, optionally, in the projection along the direction of the central axis of the auxiliary device, the accommodating portion at least partially overlaps with the wall of the first limiting mechanism, and the end of the moving body close to the distal end at least partially overlaps with the wall of the first limiting mechanism. In this case, by making the accommodating portion and the moving body at least partially overlap with the wall of the first limiting mechanism, the travel of the moving body along the first limiting mechanism can be effectively limited while simplifying the structure.

[0019] In addition, in the auxiliary device of this embodiment, the moving body may have a cutout substantially along the direction of the central axis of the auxiliary device. In this case, by providing the moving body with the cutout along the direction of the central axis of the auxiliary device, it is possible to facilitate the application of the puncture member provided in the hollow portion of the moving body.

[0020] In addition, in the auxiliary device involved in this embodiment, optionally, a protrusion is provided on the inner wall of the first limiting mechanism, which protrudes toward the central axis of the auxiliary device through the incision. In this case, when the moving body moves along the first limiting mechanism, the protrusion provided on the inner wall of the first limiting mechanism can act on the puncture member through the incision of the moving body, thereby providing a trigger mechanism for the puncture member with a simplified structure.

[0021] In addition, in the auxiliary device of the present embodiment, the moving body is optionally configured to inhibit the rotation of the puncture member. In this case, by inhibiting the puncture member from rotating unexpectedly during the application process, the user experience during the application process of the medical device can be improved.

[0022] In addition, in the auxiliary device according to the present embodiment, the sharp object and the support seat are optionally configured to be detachably assembled and combined, thereby facilitating the sharp object to be sterilized separately.

[0023] In addition, in the auxiliary device involved in this embodiment, optionally, the locking portion is arranged on the support seat, and the locking portion includes an arm extending substantially along the direction of the central axis of the auxiliary device, and a protrusion that is linked with the arm and protrudes away from the central axis of the auxiliary device substantially along the direction orthogonal to the central axis of the auxiliary device. In this case, when the puncture member is placed in the hollow portion of the moving body, the locking portion overlaps with the incision of the moving body, thereby being able to hold the puncture member with a simplified structure.

[0024] In addition, in the auxiliary device involved in this embodiment, optionally, when the puncture member is maintained, the projection of the locking portion passes through the incision. In this case, by overlapping the projection of the locking portion with the incision of the moving body, the locking portion can be maintained under the condition of simplified structure.

[0025] In addition, in the auxiliary device of this embodiment, optionally, when the puncture member is released, the arm of the locking portion is pressed toward the central axis of the auxiliary device and the protrusion of the locking portion leaves the incision, thereby enabling the locking portion to be released in a simple and convenient manner.

[0026] In addition, in the auxiliary device involved in this embodiment, optionally, the support seat of the puncture member is arranged in the hollow part, the accommodation part is arranged in the second bottom part, the second bottom part has a through hole, and the sharp object passes through the through hole of the second bottom part. In this case, by arranging the sharp object to pass through the through hole of the second bottom part, the sharp object can be engaged with the medical device accommodated in the accommodation part, thereby facilitating the medical device to be at least partially placed under the skin of the host through the puncture member.

[0027] In addition, in the auxiliary device involved in this embodiment, optionally, when the puncture member is held, the distance between the support seat and the first bottom is not less than the length of the sharp object protruding from the accommodating portion. In this case, by setting the distance between the support seat and the first bottom to be not less than the length of the sharp object protruding from the accommodating portion, it is possible to provide a moving space for the puncture member to leave the host, thereby reducing the puncture member from causing undesirable damage to the host.

[0028] According to the present disclosure, a mechanism for automatic retraction of the puncture member can be provided, and the timing of the puncture member leaving the host can be more accurately controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The following is an overview of the application of medical equipment and auxiliary devices according to the present embodiment example.

[0030] Figure 21 is a schematic diagram showing a medical device according to the present embodiment example from a first perspective.

[0031] Figure 3 2 is a schematic diagram showing a second viewing angle of the medical device according to the present embodiment example.

[0032] Figure 4 1 is a block diagram schematically showing an electronic device of a medical device according to the present embodiment example.

[0033] Figure 5A is a schematic diagram showing the overall appearance of the auxiliary device involved in this embodiment example; Figure 5B 1 is an exploded schematic diagram showing an assist device according to the present embodiment example.

[0034] Fig. 6A is a perspective schematic diagram showing the periphery of the first housing involved in this embodiment example; Figure 6B 1 is a perspective schematic diagram showing an end portion of a first housing according to the embodiment example from a first perspective.

[0035] Fig. 7A is an exploded schematic diagram showing a first holding portion, a moving body, and a first driving mechanism involved in this embodiment example; Figure 7B is a schematic cross-sectional view showing a moving body according to the present embodiment when being held; Figure 7C 1 is a schematic cross-sectional view showing a state where the moving body according to the present embodiment example is released.

[0036] Fig. 8A is an exploded schematic diagram showing an end portion of a first housing and a first trigger mechanism involved in this embodiment example; Figure 8B is a perspective schematic diagram showing a second viewing angle of an end portion of a first housing involved in the present embodiment example; Figure 8C is a bottom view schematically showing an end portion of a first housing according to the present embodiment; Fig.8D is a schematic top view showing an end portion of a first housing according to the present embodiment; Fig. 8E is a perspective schematic diagram showing a first trigger mechanism involved in this embodiment example; Fig.8F is a bottom view schematically showing a first trigger mechanism involved in this embodiment example;

[0037] Figure 8G is a cross-sectional schematic diagram showing the first trigger mechanism involved in this embodiment example before being assembled with the end portion; Figure 8H is a cross-sectional schematic diagram showing the first trigger mechanism and the end portion involved in the present embodiment example after being assembled; Figure 8Iis a cross-sectional schematic diagram showing the first holding portion involved in this embodiment example before being triggered by the first trigger mechanism; Figure 8J 1 is a schematic cross-sectional view showing the first holding portion according to the present embodiment example after being triggered by the first trigger mechanism.

[0038] Fig. 9A is an exploded schematic diagram showing a first viewing angle of the second housing and the auxiliary mechanism; Fig. 9B is an exploded schematic diagram showing a second perspective of the second housing and the auxiliary mechanism; Fig. 9C is a cross-sectional schematic diagram showing the auxiliary mechanism assembled to the second housing; Fig.9D Schematic diagram showing a cover according to this embodiment example.

[0039] Fig. 10A is an exploded schematic diagram showing a first perspective of a moving body and a piercing member involved in this embodiment example; Fig. 10B is an exploded schematic diagram showing a second viewing angle of the moving body and the piercing member involved in this embodiment example; Fig. 10C is a schematic cross-sectional view showing the puncture member according to the present embodiment when being held; Fig. 10D is a schematic cross-sectional view showing the puncture member according to the present embodiment when it is released; Fig.10E 1 is a schematic cross-sectional view showing the pre-assembly of the moving body and the puncture member according to the present embodiment.

[0040] Fig.11A is an exploded schematic diagram showing a puncture member according to an example of the present embodiment; Fig. 11B is a schematic diagram showing the assembly of the puncture member involved in this embodiment example; Fig. 11C It is an enlarged schematic diagram showing a needle-shaped portion according to the present embodiment example. DETAILED DESCRIPTION

[0041] Hereinafter, the preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the following description, the same symbols are assigned to the same components, and repeated descriptions are omitted. In addition, the accompanying drawings are only schematic diagrams, and the ratio of the dimensions of the components or the shapes of the components may be different from the actual ones.

[0042] It should be noted that the terms "including" and "having" and any variations thereof in the present disclosure, 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 inherent to these processes, methods, products or devices.

[0043] The embodiment of the present disclosure relates to an auxiliary device for a medical device, which can be used to place the medical device completely or partially under the skin of a host. The auxiliary device involved in this embodiment can help place the medical device under the skin of the host at a desired position.

[0044] The auxiliary device involved in this embodiment can also be called, for example, a booster device, a transport device, an implant device, an application device, etc. It should be noted that each name is used to represent the device involved in this embodiment for applying the medical device to the host, and should not be understood as limiting.

[0045] Figure 1 1 is an overview of the application of the medical device 800 and the auxiliary device 1000 involved in this embodiment. In this embodiment, the medical device 800 can be applied to the host and applied to a desired position via the auxiliary device 1000, and the host can obtain physiological information through the medical device 800 applied to the host.

[0046] In addition, the present disclosure also provides a monitoring system, which may include the medical device 800 involved in this embodiment that can obtain the physiological information of the host, and a reading device 900 that can communicate with the medical device 800 (see Figure 1 ). The medical device 800 applied to the host can transmit the acquired physiological information to the reading device 900, for example, by wireless means, thereby facilitating the host to read and monitor its own physiological information.

[0047] In some examples, the medical device 800 may be a sensor device. In some examples, the medical device 800 may be an analyte sensor device, which may generate information about a specific analyte in the body fluid based on the body fluid, such as reacting with the analyte in the body fluid and generating analyte information. In this case, the sensor reacts with the analyte in the body fluid, thereby facilitating acquisition of analyte information in the body fluid.

[0048] In this embodiment, the analyte targeted by the analyte sensor device can be one or more of glucose, acetylcholine, amylase, bilirubin, cholesterol, chorionic gonadotropin, creatine kinase, creatine, creatinine, DNA, fructosamine, glutamine, growth hormone, hormone, ketone body, lactate, oxygen, peroxide, prostate-specific antigen, prothrombin, RNA, thyroid-stimulating hormone or troponin.

[0049] The following describes the medical device 800 according to the present embodiment by taking glucose as an example of the analyte. It should be noted that, for other analytes, those skilled in the art can analyze other analytes by slightly modifying the medical device 800 used based on glucose.

[0050] Figure 2 1 is a schematic diagram showing a medical device 800 according to the present embodiment example from a first perspective. Figure 3 2 is a schematic diagram showing a second viewing angle of the medical device 800 according to the present embodiment example. Figure 4 1 is a block diagram showing the electronic device of the medical device 800 according to the present embodiment.

[0051] In some examples, the medical device 800 may include a sensor 820, a connection portion 840, and an applicator portion 860 (see Figure 2 or Figure 3 ). The sensor 820 may be detachably mounted on the application portion 860. The sensor 820 may be connected to the application portion 860 via the connection portion 840. In other examples, the medical device 800 may not include the connection portion 840, in which case the sensor 820 may be directly connected to the application portion 860.

[0052] In some examples, the sensor 820 may be partially or completely placed under the skin of the host. In some examples, after being placed under the skin, the sensor 820 may react with glucose in the subcutaneous tissue fluid to generate glucose information of the host. The application portion 860 may be applied to the body surface of the host. In some examples, the application portion 860 may also receive the glucose information generated by the sensor 820. In some examples, the application portion 860 may also provide the sensor 820 with the electrical energy required to obtain physiological information. Thus, it is possible to facilitate the sensor 820 to perform continuous monitoring under the skin of the host.

[0053] In some examples, the sensor 820 may include an implant portion (not shown) and a connection portion (not shown). The implant portion may be placed subcutaneously in the host and connected to the application portion 860 via the connection portion. In this case, by placing the implant portion subcutaneously in the host and connecting the implant portion to the application portion 860 via the connection portion, it is possible to facilitate the transmission of the acquired analyte information to an external device. In some examples, the connection portion may be connected to the application portion 860 via the connection portion 840.

[0054] In some examples, the implanted portion of sensor 820 may be elongated. In some examples, the implanted portion may be rigid. Thus, it can be helpful to be placed under the skin of the host. In other examples, the implanted portion may also be flexible, in which case the host's foreign body sensation can be reduced. In some examples, the length of the implanted portion may be 1 mm to 10 mm, for example 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm. After the implanted portion is implanted into the host, its depth can reach the dermis layer and be located between the tissues of the skin, so that the sensor 820 can collect glucose information of the interstitial fluid.

[0055] In some examples, the implanted portion may include a working electrode (not shown) and a counter electrode (not shown). In this embodiment, a sensing layer including glucose enzyme may be provided on the working electrode, and the sensor 820 placed subcutaneously may generate a current signal by the glucose enzyme on the working electrode and glucose in the tissue fluid or blood, and form a loop with the counter electrode to generate a current signal, and the current signal is analyzed and processed to obtain glucose concentration information. In some examples, the current signal generated by the sensor 820 may be transmitted to the application portion 860.

[0056] In some examples, the implanted portion may also include a reference electrode (not shown). In some examples, the reference electrode may form a known and fixed potential difference with the tissue fluid or blood. In this case, the potential difference between the working electrode and the tissue fluid or blood may be measured by the potential difference formed between the reference electrode and the working electrode. Thus, the voltage generated by the working electrode can be obtained more accurately. Thus, the electronic device 880 (described later) of the application portion 860 can automatically adjust and maintain the stability of the voltage at the working electrode according to a preset voltage value, so that the measured current signal can more accurately reflect the glucose concentration information in the tissue fluid or blood. In some examples, the number of reference electrodes may be one or more, for example two.

[0057] In some examples, the connecting portion 840 may be roughly columnar, such as a quadrangular prism. However, the examples of the present embodiment are not limited thereto. In other embodiments, the connecting portion 840 may be roughly triangular prism, hexagonal prism, cylindrical, or hemispherical. In addition, the receiving portion (not shown) of the application portion 860 may also be formed into a shape matching the connecting portion 840 to be suitable for receiving the connecting portion 840. For example, the receiving portion of the application portion 860 may be formed into a recessed portion matching the shape of the connecting portion 840, and the connecting portion 840 may be fitted into the recessed portion.

[0058] In some examples, the sensor 820 may be configured to be detachably mounted on the application portion 860. In this case, the sensor 820 and the application portion 860 may be packaged separately before the medical device 800 is accommodated in the accommodation portion 250, thereby facilitating the sterilization of the sensor 820 and the application portion 860 separately in different ways.

[0059] In some examples, the application portion 860 is configured to adhere to the body surface of the host. In some examples, the application portion 860 may also include an adhesive sheet 870 having adhesive properties (see Figure 2 or Figure 3 ). The application portion 860 can be applied and fixed to the body surface of the host through the adhesive sheet 870. In some examples, the adhesive surface of the adhesive sheet 870 can be substantially equal to the bottom surface of the application portion 860 close to the host. In other examples, the adhesive surface of the adhesive sheet 870 can also be slightly larger than the bottom surface of the application portion 860 close to the host.

[0060] In some examples, the applicator 860 may also include an electronic device 880 (see Figure 4 ). The electronic device 880 can receive the glucose information generated by the sensor 820. In some examples, the electronic device 880 can further process the glucose information. In other examples, the electronic device 880 can also transmit the received glucose information to an external device, such as a reading device 900 to be described below. In addition, the electronic device 880 can also power the sensor 820.

[0061] In some examples, the electronic device 880 may include a power module 882, a switch module 884, and a processing module 886 (see Figure 4 The power module 882 can supply power to the sensor 820 and / or the processing module 886, the switch module 884 can control the connection between the power module 882 and the sensor 820 and / or the processing module 886, and the processing module 886 can process the signal (e.g., glucose information) generated by the sensor 820.

[0062] In addition, in some examples, the electronic device 880 may further include a storage module 888 (see Figure 4 ). The storage module 888 can store the signal generated by the sensor 820. In addition, in some examples, the electronic device 880 can also include a communication module 890 (see Figure 4 ). The communication module 890 can communicate with an external device (e.g., a smart terminal device). In some examples, the communication module 890 can be a Bluetooth module, an NFC module, a Wifi module, etc. In some examples, the smart terminal device can be a smart phone, a smart watch, a tablet computer, a computer, etc.

[0063] In some examples, the electronic device 880 can transmit the glucose information generated by the sensor 820 to the external device in real time after receiving it. This makes it easy for the external device to process or display the glucose information in real time. In other examples, the electronic device 880 can also store the glucose information generated by the sensor 820 in the storage module 888 after receiving it, and then transmit it to the external device at a fixed time. Thus, the power consumption caused by the real-time transmission can be reduced.

[0064] In addition, in some examples, the power module 882 of the electronic device 880 may also be configured to provide power to the sensor 820. In some examples, when the electronic device 880 is in the initial mode, the power module 882 and the sensor 820 may be disconnected, and when the electronic device 880 is stimulated to the working mode (i.e., when the switch module 884 is in a closed state), the power module 882 may be connected to the sensor 820, thereby providing power to the sensor 820.

[0065] In some examples, as described above, the application portion 860 can be configured to communicate with an external device via wireless communication or wired communication. In this case, by configuring the application portion 860 to communicate with the external device, the analyte information obtained by the sensor 820 can be read in real time or at a fixed time. In some examples, the external device can be a reading device 900.

[0066] In some examples, as described above, the medical device 800 can be connected to the reading device 900 for communication. In some examples, the reading device 900 can be a display with a communication function. In some examples, the communication function of the reading device 900 can be implemented by a wireless communication method or a wired communication method. The wireless communication method can be Bluetooth, NFC, Wifi, etc. The wired communication method can be USB, optical fiber, etc.

[0067] In other examples, the reading device 900 may also be a smart terminal installed with an application program matching the medical device 800. The smart terminal may be a notebook computer, a tablet computer, a smart phone, and the like.

[0068] As described above, the medical device 800 according to the present embodiment can be applied to a host through the auxiliary device 1000. Hereinafter, the auxiliary device 1000 according to the present embodiment will be described in detail with reference to the accompanying drawings.

[0069] Figure 5A is a schematic diagram showing the overall appearance of an auxiliary device 1000 involved in this embodiment example; Figure 5B 1 is an exploded schematic diagram showing an assisting device 1000 according to this embodiment. Figure 5A and Figure 5B , line CA schematically represents the central axis of the assist device 1000 .

[0070] In this embodiment, the auxiliary device 1000 may include a housing 10 that can provide a moving space, and an auxiliary mechanism 20 configured to move within the moving space of the housing 10 (see Figure 5A and Figure 5B ). The housing 10 may have a proximal end that is close to the host during operation, and a distal end that is away from the host. The auxiliary mechanism 20 may be releasably retained in the housing 10 and may accommodate the medical device 800. The auxiliary mechanism 20 may be configured to be movable relative to the housing 10 and driven toward the host when released to apply the medical device 800 to the host. It is understood that, in this document, the "proximal end" may be understood as an end that is close to the host during operation, and the "distal end" may be understood as an end that is away from the host during operation.

[0071] In some examples, the housing 10 may have a moving space, and the auxiliary mechanism 20 may be releasably retained in the housing 10. In some examples, when the auxiliary mechanism 20 is released, it may move within the moving space of the housing 10. In addition, in some examples, the housing 10 may also define the application position of the medical device 800 on the body surface of the host.

[0072] In some examples, the housing 10 may include a first shell 100 and a second shell 140. A moving space may be formed after the first shell 100 and the second shell 140 are assembled and combined. The first shell 100 may releasably hold the auxiliary mechanism 20. The second shell 140 may define the application position of the medical device 800 on the host's body surface and may define the movement path of the auxiliary mechanism 20. After being released by the first shell 100, the auxiliary mechanism 20 may move relative to the second shell 140 along the movement path defined by the second shell 140 and apply the medical device 800 to the application position defined by the second shell 140. In this embodiment, the axis of the first shell 100 and the axis of the second shell 140 may be substantially parallel to the central axis CA of the auxiliary device 1000.

[0073] In some examples, the auxiliary mechanism 20 may include a moving body 200, a receiving portion 250, and a piercing member 260 (see Figure 5B). The moving body 200 can be releasably retained in the first housing 100, and the moving body 200 can be configured to move along the moving path defined by the second housing 140 when released. The receiving portion 250 can be provided on the moving body 200 and can be configured to receive and accommodate the medical device 800, and the receiving portion 250 can be driven toward the application position defined by the second housing 140. The puncture member 260 can be provided on the moving body 200 in a manner of passing through the receiving portion 250. After being released, the moving body 200 can move toward the proximal end of the housing 10, and the receiving portion 250 and the puncture member 260 also move toward the proximal end of the housing 10 to apply the medical device 800 accommodated in the receiving portion 250 to the host. In some examples, the puncture member 260 can penetrate the subcutaneous tissue of the host, thereby placing the medical device 800 at least partially under the subcutaneous tissue of the host.

[0074] In addition, in some examples, the auxiliary device 1000 may further include a first driving mechanism 30 (see Figure 5B ). The first driving mechanism 30 can be configured to exert an action on the moving body 200 in a proximal manner. When the moving body 200 is released, the moving body 200 can be driven proximally by the first driving mechanism 30 to push the medical device 800 accommodated in the accommodation portion 250 toward the host, for example, to the application position defined by the second housing 140. In addition, the medical device 800 can be at least partially placed under the skin of the host through the puncture member 260.

[0075] In other examples, the auxiliary device 1000 may not include the first driving mechanism 30. In this case, when the moving body 200 is released, the moving body 200 may also be manually driven to move toward the proximal end.

[0076] In addition, in some examples, the puncture member 260 can be releasably provided on the moving body 200, and the puncture member 260 can be configured to move relative to the receiving portion 250 when released. For example, when the puncture member 260 is released, it can move relative to the receiving portion 250 in a direction away from the host.

[0077] In addition, in some examples, the auxiliary device 1000 may further include a second driving mechanism 40 (see Figure 5B ). The second drive mechanism 40 can be configured to exert an action on the piercing member 260 in a distal direction. When the piercing member 260 is released, the piercing member 260 can be driven distally by the second drive mechanism 40 to cause the piercing member 260 to leave the host.

[0078] In other examples, the auxiliary device 1000 may also not include the second drive mechanism 40. In this case, the puncture member 260 can be manually driven to move away from the host. For example, in some examples, the puncture member 260 can also be integrally connected to the moving body 200, and the puncture member 260 can be moved away from the host by manually moving the moving body 200 in a direction away from the host.

[0079] In some examples, as described above, the housing 10 may include a first housing 100 (see Figure 5A In some examples, the first housing 100 may include a perimeter 110 and an end 120 (see Figure 5B ).

[0080] Fig. 6A 1 is a perspective schematic diagram showing a peripheral portion 110 of a first housing 100 according to the present embodiment; Figure 6B 1 is a perspective schematic diagram showing the end 120 of the first housing 100 according to the present embodiment. In some examples, the peripheral portion 110 may be formed as a hollow cylindrical shell that passes vertically along the central axis CA of the auxiliary device 1000 (see Fig. 6A ), the end portion 120 may be disposed on the periphery 110 in a manner close to the distal end of the housing 10. In some examples, the central axis CA may pass through the geometric center of the end portion 120.

[0081] In some examples, one or more rib-shaped protrusions may be provided on the inner wall of the first housing 100, and one or more rib-shaped grooves may be provided on the outer wall of the second housing 140. In some examples, when the second housing 140 is assembled to the first housing 100, the one or more rib-shaped protrusions of the first housing 100 may be respectively embedded in the one or more rib-shaped grooves of the second housing 140. In this case, the matching of the rib-shaped protrusions and the rib-shaped grooves facilitates the assembly of the first housing 100 and the second housing 140.

[0082] In some examples, a peripheral rib 112 extending substantially along the direction of the central axis CA may be provided on the inner wall of the peripheral portion 110 (see Fig. 6A ). In some examples, the number of the peripheral ribs 112 may be multiple, such as 2, 3, or 4. Fig. 6A In the illustrated embodiment, the number of the peripheral ribs 112 is 4, and the peripheral ribs 112 may include peripheral ribs 112a, peripheral ribs 112b, peripheral ribs 112c, and peripheral ribs 112d. In some examples, the peripheral ribs 112 may serve as reinforcing ribs to effectively improve the anti-deformation capability of the peripheral portion 110. In some examples, the peripheral ribs 112 may also serve as guide ribs to facilitate assembly of the first housing 100 and the second housing 140 (described later).

[0083] In some examples, a connecting column 114 substantially parallel to the central axis CA may be provided on the inner wall of the peripheral portion 110 (see Fig. 6A ). In some examples, the number of the connecting pillars 114 can be multiple, such as 2, 3, or 4. Fig. 6A In the illustrated embodiment, the number of the connecting posts 114 is 3, and the connecting posts 114 may include connecting posts 114a, connecting posts 114b, and connecting posts 114c. In some examples, the end of the connecting post 114 near the proximal end of the auxiliary device 1000 may be a thermal post end, that is, it may be molten by heating and then solidified by cooling. In this case, the connecting post 114 may be matched with a hole provided on the second housing 140 and assembled with the second housing 140 (described later).

[0084] In some examples, the end portion 120 may include a generally cylindrical end portion body 121 (see Figure 6B ).

[0085] In some examples, the first housing 100 may include a first retaining portion 130. In some examples, the first retaining portion 130 may be configured to releasably retain the auxiliary mechanism 20. In some examples, the first retaining portion 130 may be disposed at the end portion 120 (see Figure 6B ). In some examples, the first retaining portion 130 may be extended from the end body 121 along the central axis CA in a manner toward the proximal end of the auxiliary device 1000. In this case, when the auxiliary mechanism 20 is retained at the end 120, the auxiliary mechanism 20 may be located in the hollow portion of the peripheral portion 110, and when the auxiliary mechanism 20 is released, the auxiliary mechanism 20 may move approximately along the axial direction of the peripheral portion 110. That is, when the auxiliary mechanism 20 is released, the auxiliary mechanism 20 may move approximately along the central axis CA.

[0086] In some examples, the first retaining portion 130 can be releasably interlocked with the retained member (e.g., the first locking portion 236 of the moving body 200 described later) by at least one structure of a buckle, a hook, a latch, or a pin. In this case, the first retaining portion 130 and the first locking portion 236 are releasably interlocked by at least one structure of a buckle, a hook, a latch, or a pin, thereby providing an interlocking method that is easy to release.

[0087] In some examples, the number of the first retaining portion 130 may be one or more, such as 1, 2, 3, or 4. Figure 6BIn the embodiment shown, the number of the first retaining portion 130 may be 2, and the first retaining portion 130 may include a first retaining portion 130a and a first retaining portion 130b. The first retaining portion 130a and the first retaining portion 130b may be equidistantly disposed on opposite sides of the central axis CA (see Figure 6B ).

[0088] In some examples, the first retaining portion 130 may have a surface facing the distal end, and the first locking portion 236 may have a surface facing the proximal end, and when the moving body 200 is retained, the surface facing the distal end of the first retaining portion 130 and the surface facing the proximal end of the first locking portion 236 may engage with each other. In some examples, when the moving body 200 is released, the surface facing the distal end of the first retaining portion 130 and the surface facing the proximal end of the first locking portion 236 may separate from each other.

[0089] In some examples, at least a portion of the first retaining portion 130 may be L-shaped or hook-shaped, thereby facilitating the formation of a buckle structure and interlocking with the first locking portion 236 .

[0090] In some examples, the first retaining portion 130 may include an arm 132 extending substantially along the direction of the central axis CA, and a protrusion 134 that is linked to the arm 132 and protrudes toward the central axis CA in a direction substantially orthogonal to the central axis CA (see Figure 6B ). In some examples, the arm 132 of the first retaining portion 130 may extend outward from the end body 121. In this case, when the protrusion 134 of the first retaining portion 130 overlaps the first locking portion 236, the arm 132 is actuated to actuate the protrusion 134, thereby conveniently allowing the first retaining portion 130 to release the first locking portion 236.

[0091] In addition, in some examples, a groove (not shown) substantially along the central axis CA may be provided on the arm 132 of the first holding portion 130. In some examples, the groove may face the central axis CA. In this case, the actuating portion 504 of the first trigger mechanism 50 (described later) can move along the groove and actuate the arm 132 of the first holding portion 130.

[0092] In some examples, the arm 132 of the first retaining portion 130 may be elastic. In some examples, the arm 132 of the first retaining portion 130 may be elastic in a direction substantially orthogonal to the central axis CA. In some examples, the arm 132 of the first retaining portion 130 may tend to shrink toward the central axis CA in a direction from the distal end to the proximal end. That is, in a natural state (i.e., in a state without external force), the end of the arm 132 near the proximal end is closer to the central axis CA than the end of the arm 132 near the distal end. In other examples, the arm 132 may also be substantially parallel to the central axis CA. In some examples, when an action is applied to the arm 132 in a direction substantially orthogonal to the central axis CA, the arm 132 may pivot. For example, when an action is applied to the arm 132 in a direction substantially orthogonal to the central axis CA in a manner away from the central axis CA, the arm 132 may pivot so that the end of the arm 132 near the proximal end moves in a direction away from the central axis CA. Thereby, the held material can be released with easy operation.

[0093] In some examples, the arms 132 of the first retaining portion 130 may be brought together toward the central axis CA in the direction from the distal end to the proximal end, and the protrusions 134 of the first retaining portion 130 may protrude toward the central axis CA. In this case, the first locking portion 236 can be retained inside (close to the central axis CA) by making the first retaining portion 130 collapse inward as a whole, and the first locking portion 236 can be released by actuating the first retaining portion 130 toward the outside (away from the central axis CA), thereby facilitating the retention and release of the first locking portion 236.

[0094] In other examples, the arm 132 of the first retaining portion 130 may be away from the central axis CA in the direction from the distal end to the proximal end, and the protrusion 134 of the first retaining portion 130 may protrude away from the central axis CA. In this case, the first locking portion 236 can be retained on the outside (away from the central axis CA) by making the first retaining portion 130 disperse outward as a whole, and the first locking portion 236 can be released by actuating the first retaining portion 130 toward the inside (close to the central axis CA), thereby facilitating the retention and release of the first locking portion 236.

[0095] However, the example of this embodiment is not limited to this. The concept of the present disclosure is that the first retaining portion 130 forms a structure such as a buckle, hook, latch, or pin to retain the retained object, and releases the retained object by moving the buckle, hook, latch, or pin away from its original position. Based on this concept, the arm 132 of the first retaining portion 130 and the protrusion 134 of the first retaining portion 130 can also move closer or protrude in other directions while being able to form a buckle.

[0096] In some examples, the protrusion 134 of the first retaining portion 130 may have a surface facing the distal end. In some examples, the surface of the protrusion 134 facing the distal end may be substantially orthogonal to the central axis CA. The retained component (e.g., the first locking portion 236 of the moving body 200 to be described below) may be retained and not move toward the proximal end by overlapping / abutting against the surface of the protrusion 134 facing the distal end. When the arm 132 of the first retaining portion 130 is actuated to cause the surface of the protrusion 134 facing the distal end to leave the original position, i.e., no longer abut against the retained component, the retained component will be released.

[0097] That is, the first retaining portion 130 may be a structure such as a buckle, a hook, a latch, or a pin formed on the first housing 100 (e.g., the end 120 of the first housing 100). For example, the first retaining portion 130 may be formed into a finger-shaped, straight-shaped, L-shaped, J-shaped, Z-shaped, or other structure that can be decomposed into at least two parts, at least one part of which (e.g., an arm connected to the first housing 100) can pivot, and the other part (e.g., a protrusion protruding outward from the arm and abutting against the retained part) can move away from the initial position along with the pivoting, thereby releasing the hook, hang, latch, push, support, etc. on the retained part.

[0098] Fig. 7A is an exploded schematic diagram showing the first holding portion 130, the moving body 200, and the first driving mechanism 30 involved in this embodiment example; Figure 7B is a schematic cross-sectional view showing the moving body 200 involved in the present embodiment example when being held; Figure 7C FIG. 2 is a cross-sectional schematic diagram showing the movement body 200 involved in this embodiment example when being released. Figure 7B and Figure 7C The figure mainly illustrates the holding and releasing of the moving body 200 by the first holding portion 130, and does not illustrate the first driving mechanism 30 and other components.

[0099] In some examples, as described above, the auxiliary mechanism 20 may include a moving body 200, and a receiving portion 250 disposed on the moving body 200. The moving body 200 may be releasably retained on the first housing 100. In some examples, the moving body 200 may be releasably retained by the first retaining portion 130. After being released, the moving body 200 may be driven toward the proximal end to push the medical device 800 contained in the receiving portion 250 toward the host.

[0100] In some examples, a first driving unit 30 may be provided between the moving body 200 and the first housing 100 (see Fig. 7A). The first driving part 30 can exert an action on the moving body 200 in a proximal direction. After the moving body 200 is released, it can be driven proximally by the first driving part 30 to push the medical device 800 accommodated in the accommodating part 250 toward the host.

[0101] In other examples, as described above, the auxiliary device 1000 may also not include the first driving part 30. In this case, after the moving body 200 is released, the moving body 200 may also be pushed toward the host by manpower, thereby pushing the medical device 800 accommodated in the accommodation part 250 toward the host.

[0102] In some examples, the moving body 200 may include a first bottom 210, a second bottom 220, and a side wall 230 connecting the first bottom 210 and the second bottom 220 (see Fig. 7A ). The first bottom 210 may be close to the distal end, the second bottom 220 may be close to the proximal end, and the receiving portion 250 may be disposed at the second bottom 220 .

[0103] In some examples, a hollow portion may be formed between the first bottom portion 210, the second bottom portion 220, and the side wall 230. In some examples, the puncture member 260 may be releasably disposed in the hollow portion of the moving body 200. In some examples, the puncture member 260 may move along the hollow portion of the moving body 200 when released. In this case, the hollow portion is formed by the first bottom portion 210, the second bottom portion 220, and the side wall 230, and the receiving portion 250 is disposed at the second bottom portion 220, and the puncture member 260 is disposed at the hollow portion, thereby facilitating the puncture member 260 to move relative to the receiving portion 250 when released. Thus, when the medical device 800 is applied to the host, the puncture member 260 is released and moves relative to the receiving portion 250, so that the puncture member 260 can leave the host.

[0104] In other examples, the puncture member 260 may also be fixedly disposed on the moving body 200. In this case, after the medical device 800 is applied to the host, the moving body 200 may be completely separated from the host by manpower, thereby the puncture member 260 may also be separated from the host.

[0105] In some examples, the first driving mechanism 30 may be disposed between the first bottom 210 and the first housing 100. In some examples, a positioning portion 212 for positioning the first driving mechanism 30 may be disposed on the first bottom 210 (see Fig. 7A In this case, the position where the first driving mechanism 30 acts on the moving body 200 can be more stably defined by the positioning portion 212 .

[0106] In some examples, the positioning portion 212 of the first bottom portion 210 may be a columnar protrusion protruding from the first bottom portion 210 toward the distal end along the central axis CA (see Fig. 7A ). In some examples, the positioning portion 212 may be cylindrical. In some examples, the positioning portion 212 may be solid cylindrical, and the first drive mechanism 30 may be sleeved on the outer periphery of the positioning portion 212. In other examples, the positioning portion 212 may be hollow cylindrical, and the first drive mechanism 30 may be sleeved on the outer periphery of the positioning portion 212 or embedded in the inner periphery of the positioning portion 212.

[0107] In some examples, the first drive mechanism 30 may have an energy storage state and an energy release state. When the first drive mechanism 30 is switched from the energy storage state to the energy release state, the first drive mechanism 30 may release energy and exert an effect on the moving body 200 in a proximal manner. When the moving body 200 is held, the first drive mechanism 30 may exist between the moving body 200 and the first housing 100 in an energy storage state. When the moving body 200 is released, the first drive mechanism 30 may switch from the energy storage state to the energy release state and exert an effect on the moving body 200 in a proximal manner.

[0108] In some examples, the first driving mechanism 30 may have a compressed state and an extended state, and when the first driving mechanism 30 is switched from the compressed state to the extended state, the first driving mechanism 30 may release energy. In some examples, the first driving mechanism 30 may be a compressible elastic component. In some examples, the first driving mechanism 30 may be a spring. In some examples, one end of the first driving mechanism 30 may be sleeved on the positioning portion 212 of the first bottom 210.

[0109] In some examples, the end portion 120 may have a positioning portion 122 (see Figure 6B ). In some examples, the positioning portion 122 may be cylindrical. In this case, the other end of the first drive mechanism 30 may be sleeved on the positioning portion 122. In some examples, the positioning portion 122 may be hollow cylindrical. In this case, the other end of the first drive mechanism 30 may be sleeved on or embedded in the positioning portion 122. In some examples, the positioning portion 122 may be composed of at least two arc-shaped columns, for example, Figure 6B In the illustrated embodiment, the positioning portion 122 may include an arc-shaped column 122a and an arc-shaped column 122b. In this case, the other end of the first driving mechanism 30 may be embedded between the arc-shaped column 122a and the arc-shaped column 122b.

[0110] In addition, the auxiliary device 1000 of this embodiment is not limited thereto. In some examples, the auxiliary device 1000 may also not include the first driving mechanism 30. In this case, when the moving body 200 is released, the moving body 200 may also be moved toward the proximal end by manually applying an action to the moving body 200.

[0111] In some examples, the moving body 200 may include a first locking portion 236 configured to releasably interlock with the first retaining portion 130. Thus, the moving body 200 can be releasably retained in the first retaining portion 130 by the cooperation between the first locking portion 236 and the first retaining portion 130.

[0112] In some examples, the first locking portion 236 may be disposed on the side wall 230 of the moving body 200. That is, the first locking portion 236 may be disposed on the side wall 230 of the moving body 200 (see Fig. 7A The first locking portion 236 may cooperate with the first retaining portion 130 to retain the moving body 200 in the first housing 100 .

[0113] In some examples, the number of the first locking portions 236 may be one or more, such as 1, 2, 3, or 4. In some examples, the number of the first locking portions 236 may be the same as the number of the first retaining portions 130. Fig. 7A In the illustrated embodiment, the number of the first locking portions 236 is two, and the first locking portions 236 may include a first locking portion 236 a and a first locking portion 236 b .

[0114] In some examples, the first locking portion 236 may be formed as a buckle structure. Specifically, the first locking portion 236 may have a surface facing the proximal end, and the first retaining portion 130 may retain the moving body 200 by overlapping, abutting or engaging with the surface, and the first retaining portion 130 may release the moving body 200 by leaving the surface. That is, the first retaining portion 130 and the first locking portion 236 may be formed as an interlocking structure, and in the direction along the central axis CA, the projections of the first retaining portion 130 and the first locking portion 236 have an overlapping portion, and the first retaining portion 130 retains the first locking portion 236 through the overlapping portion, and the first retaining portion 130 and / or the first locking portion 236 may move away from each other to eliminate the overlapping portion, so that the first retaining portion 130 releases the first locking portion 236. In some examples, first retaining portion 130 and / or first locking portion 236 may be actuated in a manner facing away from each other, such that first locking portion 236 is released by first retaining portion 130 .

[0115] In some examples, the first locking portion 236 may be substantially parallel to the central axis CA or away from the central axis CA in the direction from the proximal end to the distal end. In this case, the first locking portion 236 may be closer to the central axis CA than the first retaining portion 130, thereby facilitating cooperation with the inwardly contracted first retaining portion 130 for interlocking.

[0116] In other examples, the first locking portion 236 may be substantially parallel to the central axis CA or close to the central axis CA in the direction from the proximal end to the distal end. In this case, the first locking portion 236 may be further away from the central axis CA than the first retaining portion 130, thereby facilitating cooperation with the outwardly dispersed first retaining portion 130 for interlocking.

[0117] In some examples, the first locking portion 236 may be formed in such a manner that, for example, the outer surface of the side wall 230 is concave toward the central axis CA. In some examples, the first locking portion 236 may be formed as a hollow structure, such as a through hole that penetrates the side wall 230 in a direction substantially orthogonal to the central axis CA. In some examples, the first locking portion 236 may also be formed in such a manner that the periphery of the first bottom 210 protrudes from the side wall 230 in a direction orthogonal to the central axis CA, in which case the first bottom 210 and the side wall 230 may be fixedly connected. In other examples, the first locking portion 236 may also be in an inverted hook shape or L shape.

[0118] The example of this embodiment is not limited to this. As mentioned above, the concept of the present disclosure is to form a structure such as a buckle, a hook, a latch, or a pin with the first retaining portion 130 and the first locking portion 236 for interlocking. In this case, the first locking portion 236 may have a surface facing the proximal end of the auxiliary device 1000, and the first retaining portion 130 retains the first locking portion 236 by engaging the proximal surface of the first locking portion 236 with the distal surface of the first retaining portion 130, and the first retaining portion 130 releases the first locking portion 236 by separating the proximal surface of the first locking portion 236 from the distal surface of the first retaining portion 130.

[0119] See also Figure 7B and Figure 7C ,exist Figure 7B and Figure 7C In the embodiment shown, the first retaining portion 130 may be formed in an L shape, and the first locking portion 236 may be formed in a hollow structure provided on the side wall 230. When the moving body 200 is retained, that is, Figure 7BAs shown, the protrusion 134 of the first retaining portion 130 is located in the hollow structure of the first locking portion 236, thereby supporting the moving body 200 to hold the moving body 200. When the moving body 200 is released, that is, Fig. 9C As shown, the arm 132 of the first retaining portion 130 pivots in a direction away from the center axis CA and moves the protrusion 134 away from the center axis CA, and the protrusion 134 leaves the hollow structure of the first locking portion 236, thereby releasing the moving body 200. Under the action of the first driving mechanism 30, the moving body 200 moves toward the proximal end.

[0120] Also, see Figure 7B and Figure 7C ,exist Figure 7B and Figure 7C In the illustrated embodiment, the arm 132 of the first retaining portion 130 can be moved toward the central axis CA in the direction from the distal end to the proximal end. In this case, by actuating the arm 132 of the first retaining portion 130 in the direction of the central axis CA, the arm 132 can be pivoted and the protrusion 134 can be moved away from the central axis CA, so that the protrusion 134 leaves the hollow structure of the first locking portion 236, thereby releasing the moving body 200.

[0121] In addition, in some examples, the auxiliary device 1000 may further include a first trigger mechanism 50 configured to separate the first retaining portion 130 from the first locking portion 236 to release the moving body 200 (see Figure 5B ). Thus, the moving body 200 can be conveniently released through the first trigger mechanism 50.

[0122] In some examples, the auxiliary device 1000 may also include a first trigger mechanism 50 (see Figure 5B ). The first trigger mechanism 50 is configured to trigger the first retaining portion 130 so that the moving body 200 is released by the first retaining portion 130. In some examples, the first trigger mechanism 50 can be configured to actuate the first retaining portion 130 and / or the first locking portion 236 in a manner away from each other to release the moving body 200. For example, the first trigger mechanism 50 can be configured to actuate the first retaining portion 130 to move away from the central axis CA to release the retention of the first locking portion 236, so that the moving body 200 is released. In other words, the first trigger mechanism 50 can be configured to actuate the first retaining portion 130 and / or the first locking portion 236 so that the two move away from each other so that the first locking portion 236 is released.

[0123] Fig. 8A is an exploded schematic diagram showing the end portion 120 of the first housing 100 and the first trigger mechanism 50 involved in this embodiment example; Figure 8Bis a perspective schematic diagram showing a second viewing angle of the end portion 120 of the first housing 100 involved in the present embodiment example; Figure 8C 1 is a bottom view schematically showing an end portion 120 of the first housing 100 according to the present embodiment; Fig.8D 1 is a schematic top view showing an end portion 120 of the first housing 100 according to the present embodiment; Fig. 8E is a perspective schematic diagram showing a first trigger mechanism 50 involved in this embodiment example; Fig.8F is a bottom view schematically showing a first trigger mechanism 50 involved in this embodiment example; Figure 8G 1 is a cross-sectional schematic diagram showing the first trigger mechanism 50 and the end portion 120 involved in the present embodiment before being assembled; Figure 8H is a cross-sectional schematic diagram showing the first trigger mechanism 50 and the end portion 120 involved in this embodiment example after being assembled;

[0124] In some examples, the first trigger mechanism 50 may include a pressing portion 502, an actuating portion 504, and a mounting portion 506 (see Fig. 8A ). The first trigger mechanism 50 can be assembled to the end portion 120 through the assembly portion 506. By applying an action to the pressing portion 502, the actuating portion 504 can actuate the first holding portion 130, so that the first holding portion 130 releases the holding of the moving body 200 to release the moving body 200. In some examples, the pressing portion 502 can be roughly in the shape of a pancake.

[0125] In some examples, the actuating portion 504 of the first trigger mechanism 50 may extend substantially along the direction of the central axis CA. In some examples, the first trigger mechanism 50 is configured to be movable along the direction of the central axis CA. In this case, by driving the actuating portion 504 of the first trigger mechanism 50 along the central axis CA of the auxiliary device 1000, the first retaining portion 130 can be easily actuated to be separated from the first locking portion 236.

[0126] In some examples, when projected in the direction along the central axis CA, the actuating portion 504 of the first trigger portion 50 may at least partially overlap with the first retaining portion 130 (for example, at least partially overlap with the arm 132 of the first retaining portion 130), and when the first trigger portion 50 moves in the direction along the central axis CA, the first retaining portion 130 may be actuated to move away from the first locking portion 236. Thus, the first retaining portion 130 may release the first locking portion 236 through a simple operation.

[0127] In other examples, when projected in the direction along the central axis CA, the actuating portion 504 of the first trigger portion 50 may at least partially overlap with the first locking portion 236, and when the first trigger portion 50 moves in the direction along the central axis CA, the first locking portion 236 may be actuated to move away from the first retaining portion 130. Thus, the first locking portion 236 can be released in a simple and convenient manner.

[0128] In some examples, the number of mounting portions 506 may be one or more, such as 1, 2, 3, or 4. Fig. 8E In the illustrated embodiment, the mounting portion 506 may be a mounting portion 506a and a mounting portion 506b. In some examples, the plurality of mounting portions 506 may be symmetrically distributed around the central axis CA. Fig. 8E In the illustrated embodiment, the mounting portion 506 a and the mounting portion 506 b are symmetrically distributed on both sides of the central axis CA. In some examples, the mounting portion 506 may be formed on the periphery of the pressing portion 502 .

[0129] In some examples, the mounting portion 506 may extend from the pressing portion 502 substantially along the proximal end of the central axis CA. In some examples, the mounting portion 506 may have an arm 512 substantially along the direction of the central axis CA, and a protrusion 514 protruding from the arm 512 toward the central axis CA in a direction substantially orthogonal to the central axis CA (see Fig. 8E In some examples, the arm 512 of the mounting portion 506 may extend from the pressing portion 502 substantially along the central axis CA toward the proximal end.

[0130] In some examples, the arm 512 of the assembly portion 506 may be elastic. In some examples, the arm 512 of the assembly portion 506 may tend to shrink toward the central axis CA in the direction from the distal end to the proximal end. That is, in a natural state (i.e., in a state without external force), the end of the arm 512 near the proximal end is closer to the central axis CA than the end of the arm 512 near the distal end. In other examples, the arm 512 may also be roughly parallel to the central axis CA. In some examples, when an action is applied to the arm 512 in a direction roughly orthogonal to the central axis CA, the arm 512 may pivot. For example, when an action is applied to the arm 512 in a direction roughly orthogonal to the central axis CA in a manner toward the central axis CA, the arm 512 may pivot so that the end of the arm 512 near the proximal end moves in a direction away from the central axis CA.

[0131] In some examples, the protrusion 514 of the assembly portion 506 may have a surface facing the distal end. In some examples, the surface of the protrusion 514 facing the distal end may be substantially orthogonal to the central axis CA. Components that cooperate with the assembly portion 506 (e.g., the offset portion 124 and the engagement portion 126 of the end portion 120 to be described below) may overlap / abut against the surface of the protrusion 514 facing the distal end, thereby being assembled and combined with the assembly portion 506.

[0132] That is, the assembly portion 506 may be a buckle or latch structure formed on the first trigger mechanism 50. For example, the assembly portion 506 may be formed into a finger-shaped, straight-shaped, L-shaped, J-shaped, Z-shaped, or other structure that can be decomposed into at least two parts, at least one part of which (for example, the arm 512 connected to the pressing portion 502) can pivot, and the other part (for example, the protrusion 514 protruding outward from the arm 512 and abutting against the assembly matching component) can be assembled and combined with the assembly matching component (for example, the offset portion 124 and the engagement portion 126 of the end portion 120 to be described below) as it pivots, such as being hooked, hung, latched, pushed, supported, etc.

[0133] In some examples, the end portion 120 may include an offset portion 124 and a joining portion 126 (see Figure 8B and Figure 8C ). In some examples, there may be a gap between the offset portion 124 and the engaging portion 126. In this case, the assembly portion 506 may enter the assembly position via the gap between the offset portion 124 and the engaging portion 126. In some examples, the number of the offset portions 124 and the engaging portion 126 of the end portion 120 may be multiple, such as 1, 2, 3, or 4. In some examples, the number of the offset portions 124 and the engaging portion 126 of the end portion 120 may be the same as the number of the assembly portions 506. Figure 8B and Figure 8C In the illustrated embodiment, the biasing portion 124 may be a biasing portion 124 a and a biasing portion 124 b , and the engaging portion 126 may be 126 a and 126 b .

[0134] In some examples, the distance between the offset portion 124 and the central axis CA may be greater than the distance between the engagement portion 126 and the central axis CA. In some examples, in the direction along the central axis CA and toward the proximal end, the offset portion 124 may gradually approach the central axis CA. In some examples, when projected in the direction along the central axis CA, an end of the offset portion 124 close to the proximal end may be connected to or slightly overlap with the engagement portion 126.

[0135] Now, see Figure 8G and Figure 8H, further illustrating the assembly combination of the assembly portion 506 with the offset portion 124 and the engaging portion 126. Before the assembly combination, in a direction substantially orthogonal to the central axis CA, the distance between the protrusion of the assembly portion 506a and the protrusion of the assembly portion 506b may be slightly less than or substantially equal to the distance between the engaging portion 126a and the engaging portion 126b (see Figure 8G ). After the assembly is combined, that is, the assembly portion 506 is moved toward the proximal end along the central axis CA, the assembly portion 506 can pass through the gap between the biasing portion 124 and the engaging portion 126, and the arm 512 of the assembly portion 506 is pressed by the biasing portion 124 in a manner toward the central axis CA, so that the distance between the protrusion of the assembly portion 506a and the protrusion of the assembly portion 506b is gradually reduced and is smaller than the distance between the engaging portion 126a and the engaging portion 126b. In this case, under the squeezing action of the biasing portion 124, the surface of the protrusion 514 of the assembly portion 506 facing the distal end can engage with the engaging portion 126, so that the assembly portion 506 and the engaging portion 126 are interlocked to assemble the first trigger mechanism 50 with the end portion 120 (see Figure 8H ).

[0136] That is to say, the first trigger mechanism 50 and the end portion 120 can be assembled and combined by a structure such as a buckle or a latch.

[0137] In addition, in some examples, the first trigger mechanism 50 may further include a rib groove 507. The end portion 120 may include an end rib 128. In some examples, the depth of the rib groove 507 may be substantially the same as the thickness of the end rib 128, and the width of the rib groove 507 may be substantially the same as the width of the end rib 128. In this case, the cooperation between the rib groove 507 and the end rib 128 can provide a guide for the assembly process. In addition, the cooperation between the rib groove 507 and the end rib 128 can also effectively prevent the first trigger mechanism 50 assembled on the end portion 120 from rotating unexpectedly.

[0138] In some examples, the rib groove 507 and the end rib 128 may extend substantially along the direction of the central axis CA. In some examples, the number of the rib groove 507 may be one or more, such as 1, 2, 3, or 4. Fig. 8E and Fig.8F In the illustrated embodiment, the rib groove 507 may be a rib groove 507a, a rib groove 507b, a rib groove 507c, and a rib groove 507d. Accordingly, the number of the end ribs 128 may also be one or more, and may be the same as the number of the rib grooves 507. Figure 8B In the illustrated embodiment, the end ribs 128 may be end ribs 128a, end ribs 128b, end ribs 128c, and end ribs 128d.

[0139] Figure 8Iis a cross-sectional schematic diagram showing the first holding portion 130 involved in this embodiment example before being triggered by the first trigger mechanism 50; Figure 8J FIG. 1 is a cross-sectional view showing the first holding portion 130 according to the present embodiment after being triggered by the first trigger mechanism 50. Figure 8I and Figure 8J The diagram mainly illustrates the triggering of the first retaining portion 130 by the first trigger mechanism 50 .

[0140] In some examples, as described above, the actuating portion 504 of the first trigger mechanism 50 can actuate the first holding portion 130 to cause the first holding portion 130 to release the holding of the moving body 200 , thereby releasing the moving body 200 .

[0141] In some examples, the actuating portion 504 may be formed as a columnar structure extending from the pressing portion 502 substantially along the central axis CA toward the proximal end (see Fig. 8E ). In some examples, the number of the actuating portions 504 may be one or more, such as 1, 2, 3, or 4. In some examples, the number of the actuating portions 504 may be the same as the number of the first retaining portions 130. Fig. 8E In the illustrated embodiment, the actuating portion 504 may include an actuating portion 504a and an actuating portion 504b.

[0142] In some examples, a through structure corresponding to the first retaining portion 130 is formed on the end portion 120 in a direction substantially along the central axis CA (see Figure 8B , Figure 8C or Fig.8D In some examples, when projected in the direction along the central axis CA, the projection surface of the through structure may cover the projection surface of the actuating portion 504 .

[0143] See below Figure 8I and Figure 8J , the triggering of the first retaining portion 130 by the actuating portion 504 is described in detail. As described above, the first retaining portion 130 gradually converges toward the central axis CA in the direction toward the proximal end along the central axis CA. The actuating portion 504 is configured to actuate the first retaining portion 130 so that the end of the first retaining portion 130 close to the proximal end moves away from the central axis CA, thereby releasing the retention of the moving body 200. In some examples, in the direction substantially orthogonal to the central axis CA, the distance between the actuating portion 504a and the actuating portion 504b may be slightly greater than the distance between the first retaining portion 130a and the first retaining portion 130b.

[0144] Before the actuating portion 504 actuates the first retaining portion 130, the first retaining portion 130a and the first retaining portion 130b are retracted at their proximal ends to interlock with the first locking portion 236 to retain the moving body 200 (see Figure 8I When the actuating portion 504 actuates the first retaining portion 130 (for example, by pressing the pressing portion 502 in the proximal direction), the first retaining portion 130a and the first retaining portion 130b gradually open outward (i.e., away from the central axis CA) under the actuation of the actuating portion 504, so that the protrusion 134 of the first retaining portion 130 leaves the first locking portion 236, thereby releasing the interlock between the first retaining portion 130 and the first locking portion 236, so that the moving body 200 is released (see Figure 8J ).

[0145] In some examples, the end body 121 may be a solid structure. That is, the end body 121 may not have a through hole. In some examples, the end 120 may have a positioning portion 122 extending from the end body 121 toward the proximal end (see Figure 6B In this case, one end of the first driving mechanism 30 can be sleeved on the positioning portion 212 of the moving body 200, and the other end of the first driving mechanism 30 can be sleeved on the positioning portion 122 of the end portion 120. In this way, the first driving mechanism 30 is disposed between the moving body 200 and the end portion 120.

[0146] In some examples, the first driving mechanism 30 may be a spring, thereby providing an actuating mechanism for the moving body 200 through a simplified structural design.

[0147] In other examples, the end body 121 may also be a through structure. In some examples, the positioning portion 508 of the first trigger mechanism 50 may be cylindrical. The first drive mechanism 30 may be sleeved on the positioning portion 508. In some examples, the positioning portion 508 of the first trigger mechanism 50 may be hollow cylindrical. The first drive mechanism 30 may be sleeved on or embedded in the positioning portion 508. In some examples, the positioning portion 508 may include two or more arc columns.

[0148] In some examples, an anti-mistake mechanism 520 may be provided between the first trigger portion 50 and the end portion 120 (see Figure 5B In some examples, the anti-misoperation mechanism 520 may be in the shape of a hairpin. In this case, the hairpin-shaped anti-misoperation mechanism 520 can effectively suppress the first trigger mechanism 50 from undesired movement toward the proximal end. In some examples, the anti-misoperation mechanism 520 may be disposed between the pressing portion 502 of the first trigger mechanism 50 and the first housing 100.

[0149] In some examples, an elastic component, such as a spring (not shown) may be further provided between the end 120 and the first trigger mechanism 50. In some examples, the spring provided between the end 120 and the first trigger mechanism 50 may be in a compressed state. In this case, the action toward the distal end generated by the spring may also inhibit the first trigger mechanism 50 from undesirably moving toward the proximal end. In addition, the spring provided between the end 120 and the first trigger mechanism 50 may also help the first trigger mechanism 50 to return to an initial state after the first retaining portion 130 is triggered. In this case, the first trigger mechanism 50 may automatically return to an initial state after triggering the first retaining portion 130, thereby helping to provide a reusable auxiliary device 1000.

[0150] Fig. 9A is an exploded schematic diagram showing the second housing 140 and the auxiliary mechanism 20 from a first viewing angle; Fig. 9B is an exploded schematic diagram showing a second perspective of the second housing 140 and the auxiliary mechanism 20; Fig. 9C is a cross-sectional schematic diagram showing the auxiliary mechanism 20 being assembled to the second housing 140; Fig.9D 1 is a schematic diagram showing a cover 190 according to this embodiment example.

[0151] In some examples, the first bottom 210 of the moving body 200 and the side wall 230 may be integrally formed. In other examples, the first bottom 210 of the moving body 200 may also be detachably assembled and combined with the side wall 230 .

[0152] In some examples, the first bottom portion 210 may have a bonding portion 214 (see Fig. 9A ). In some examples, the number of the coupling portion 214 can be one or more, such as 1, 2, 3, or 4. In some examples, the side wall 230 can have a moving body limiting portion 238 (described later). The moving body limiting portion 238 can impose restrictions on the puncture member 260 disposed in the moving body 200, thereby inhibiting the puncture member 260 from rotating undesirably. In some examples, the moving body limiting portion 238 can be formed as a groove and / or a ridge. In some examples, the moving body limiting portion 238 can be two ridges disposed side by side and a groove located between the two ridges. The coupling portion 214 is coupled to the side wall 230 by engaging with the ends of the two ridges of the moving body limiting portion 238.

[0153] In some examples, the second housing 140 may include a first limiting mechanism 150 and a second limiting mechanism 170. In some examples, the first limiting mechanism 150 and the second limiting mechanism 170 may be interconnected. In some examples, the first limiting mechanism 150 and the second limiting mechanism 170 may be in a hollow columnar structure. In some examples, the first limiting mechanism 150 may releasably hold the moving body 200 and may limit the moving path of the moving body 200. In some examples, the second limiting mechanism 170 may limit the application position of the medical device 800.

[0154] That is, in the auxiliary device 1000 involved in the present embodiment, the housing 10 may include a first housing 100 having a first holding portion 130 and a second housing 140 that can be assembled to the first housing 100, the second housing 140 may have a first limiting mechanism 150 and a second limiting mechanism 170 that are interconnected, the second limiting mechanism 170 may be configured to limit the application position of the medical device 800, and the auxiliary mechanism 20 may be assembled to the first limiting mechanism 150 and may move along the first limiting mechanism 150 when the moving body 200 is released by the first holding portion 130. In this case, the movement of the moving body 200 is limited by the first limiting mechanism 150 of the second housing 140, and the application position of the medical device 800 is limited by the second limiting mechanism 170 of the second housing 140, which can facilitate more accurate application of the medical device 800 to the host.

[0155] In some examples, the first limiting mechanism 150 may have a limiting portion 151. The limiting portion 151 may impose a limit on the moving body 200, thereby inhibiting the moving body 200 from rotating undesirably. In some examples, the limiting portion 151 may be a groove and / or a ridge. In some examples, the limiting portion 151 may include a ridge 154 disposed on the inner wall of the first limiting mechanism 150 and extending substantially along the central axis CA. In some examples, the limiting portion 151 may also include a groove 152 disposed on the inner wall of the first limiting mechanism 150 and extending substantially along the central axis CA. In some examples, the length of the ridge 154 and the groove 152 may be less than the height of the first limiting mechanism 150, and the ridge 154 and the groove 152 may be substantially collinear in the direction of the central axis CA. In some examples, the limiting portion 151 may also include a notch 156 disposed on the first limiting mechanism 150, and the notch 156, the ridge 154, and the groove 152 may be formed sequentially from the proximal end to the distal end along the same straight line. In some examples, the number of the limiting portions 151 may be one or more, for example, 1, 2, 3, or 4. In some examples, the plurality of limiting portions 151 may be evenly distributed on the side wall of the first limiting mechanism 150 .

[0156] In some examples, the ridge 154 of the limiting portion 151 can cooperate with the limiting portion 232 (described later) of the moving body 200 including a groove structure, thereby inhibiting the moving body 200 from rotating undesirably. In some examples, the moving body 200 can be assembled to the first limiting mechanism 150 along the groove 152, so that the groove 152 can provide a guiding effect during assembly. In addition, in some examples, the notch 156 can be used to provide an engagement space for the protrusion 234 (described later) of the moving body 200.

[0157] In addition, in some examples, the first limiting mechanism 150 may further include a reinforcing rib 158 disposed on the inner wall (see Fig. 9B ). In some examples, the reinforcing ribs 158 may extend substantially along the direction of the central axis CA. In some examples, the number of the reinforcing ribs 158 may be multiple, such as 2, 3, 4, 6, etc. In some examples, the reinforcing ribs 158 may be evenly distributed on the inner wall of the first limiting mechanism 150.

[0158] In addition, in some examples, the first limiting mechanism 150 may further include a protrusion 160 (described in detail later) disposed on the inner wall.

[0159] In addition, in some examples, the first limiting mechanism 150 can limit the travel of the moving body 200 in the direction along the central axis CA. In this case, the travel of the moving body 200 in the direction along the central axis CA is limited by the first limiting mechanism 150, so that the medical device 800 accommodated in the accommodation portion 250 can be pushed a predetermined distance more accurately, so that the medical device 800 can be applied to the host more accurately.

[0160] In addition, in some examples, when projected in the direction along the central axis CA, the accommodating portion 250 may at least partially overlap with the wall of the first limiting mechanism 150, and the end of the moving body 200 close to the distal end may at least partially overlap with the wall of the first limiting mechanism 150 (see Fig. 9C In this case, by making the accommodating portion 250 and the moving body 200 at least partially overlap with the wall of the first limiting mechanism 150, the movement stroke of the moving body 200 along the first limiting mechanism 150 can be effectively limited with a simplified structure.

[0161] In addition, in some examples, a protrusion protruding away from the central axis CA in a direction substantially orthogonal to the central axis CA is provided on one end of the moving body 200 near the distal end. In this case, the protrusion forms a buckle with the wall of the first limiting mechanism 150, thereby effectively limiting the excessive movement of the moving body 200 toward the proximal end.

[0162] In addition, in some examples, the first limiting mechanism 150 can inhibit the rotation of the moving body 200. In this case, by inhibiting the rotation of the moving body 200, it is possible to inhibit the piercing member 260 from undesirably rotating during the application process.

[0163] In addition, in some examples, the first limiting mechanism 150 may include grooves and / or ridges that are continuously or discontinuously disposed on the inner wall substantially along the direction of the central axis CA. In this case, by engaging the moving body 200 with the grooves and / or ridges of the first limiting mechanism 150, it is possible to effectively prevent the moving body 200 from rotating undesirably within the first limiting mechanism 150.

[0164] In addition, in some examples, the moving body 200 may include grooves and / or ridges disposed substantially along the direction of the central axis CA on the outer wall of the side wall 230. In this case, by engaging the grooves and / or ridges of the moving body 200 with the grooves and / or ridges of the first limiting mechanism 150, it is possible to effectively prevent the moving body 200 from rotating undesirably within the first limiting mechanism 150.

[0165] In addition, in some examples, the first limiting mechanism 150 and the second limiting mechanism 170 may be hollow cylindrical and the inner diameter of the first limiting mechanism 150 may not be greater than the inner diameter of the second limiting mechanism 170. In this case, by setting the first limiting mechanism 150 and the second limiting mechanism 170 to be hollow cylindrical, it is possible to facilitate the auxiliary mechanism 20 to move along the first limiting mechanism 150 and the second limiting mechanism 170.

[0166] In addition, in some examples, when the moving body 200 is released, the moving body 200 may move along the first limiting mechanism 150 and the receiving portion 250 may move along the second limiting mechanism 170. In this case, by moving the moving body 200 along the first limiting mechanism 150 and the receiving portion 250 along the second limiting mechanism 170, the medical device 800 received in the receiving portion 250 can be more accurately applied to a desired position on the body surface of the host.

[0167] In some examples, a restricted portion 232 may be provided on the side wall 230 of the moving body 200 (see Fig. 9A and Fig. 9B). The restricted portion 232 can cooperate with the limiting portion 151 of the first limiting mechanism 150 to inhibit the moving body 200 from undesired rotation. In some examples, the restricted portion 232 may include a groove 235 formed on the outer wall of the side wall 230. In some examples, the groove 235 may be formed between two side-by-side ridges. In some examples, the restricted portion 232 may also include an arm 233 formed by the side wall 230 extending toward the distal end along the direction of the groove 235. In some examples, the restricted portion 232 may also include a protrusion 234 protruding away from the central axis by the arm 233 in a direction substantially orthogonal to the central axis CA. In some examples, the number of restricted portions 232 may be one or more, such as 1, 2, 3, or 4. In some examples, the number of restricted portions 232 and the number of limiting portions 151 may be the same. In some examples, a plurality of restricted portions 232 may be evenly distributed on the side wall 230. In some examples, the arm 233 may be elastic.

[0168] In some examples, when projected in a direction substantially orthogonal to the central axis CA, the projection surface of the protrusion 234 of the restricted portion 232 may be further away from the central axis CA than the projection of the notch 156 of the limiting portion 151. In addition, the projection of the ridge 154 may substantially engage with the projection of the groove 235. In addition, the projection of the protrusion 234 may substantially engage with the projection of the groove 152. In some examples, the length and / or width of the receiving portion 250 may be greater than the diameter of the first limiting mechanism 150.

[0169] Below, reference Fig. 9C , exerts an action toward the moving body 200 along the direction of the central axis CA, so that the moving body 200 is assembled to the first limiting mechanism 150 via the second limiting mechanism 170. The protrusion 234 can slide into the groove 152, thereby providing a mechanism for guiding assembly. When the protrusion 234 abuts against the ridge 154, the ridge 154 presses the protrusion 234 and causes the arm 233 to elastically deform, so that the protrusion 234 is moved toward the central axis CA and can continue to slide past the ridge 154. When the protrusion 234 protrudes from the first limiting mechanism 150 toward the distal end in the direction of the central axis CA, the arm 233 returns to the initial state, so that the protrusion 234 protrudes from the first limiting mechanism 150 along a direction substantially orthogonal to the central axis CA.

[0170] The groove 235 of the moving body 200 assembled with the first limiting mechanism 150 can be engaged with the ridge 154 of the first limiting mechanism 150. Therefore, when the moving body 200 moves along the first limiting mechanism 150, it can be limited in the direction in which the ridge 154 extends. In addition, through the engagement of the groove 235 with the ridge 154, a mechanism for inhibiting rotation can also be provided to inhibit the moving body 200 from rotating unexpectedly in the first limiting mechanism 150. In this case, when the puncture mechanism 260 pierces the subcutaneous tissue of the host along with the moving body 200, the unexpected rotation is effectively inhibited, thereby reducing the discomfort caused to the host during the application process.

[0171] In addition, as described above, when projected in the direction along the central axis CA, the projection of the protrusion 234 is further away from the central axis CA than the projection of the notch 156. In this case, when the moving body 200 is assembled and combined with the first limiting mechanism 150, the protrusion 234 and the notch 156 form a snap connection, thereby limiting the displacement amount of the moving body 200 moving toward the proximal end.

[0172] In addition, as described above, in the direction substantially orthogonal to the central axis CA, the length and / or width of the receiving portion 250 connected to the second bottom portion 220 of the moving body 200 is greater than the diameter of the first limiting mechanism 150. In this case, when the moving body 200 is assembled and combined with the first limiting mechanism 150, the displacement amount of the moving body 200 traveling toward the distal end can be limited by the receiving portion 250.

[0173] In some examples, the second limiting mechanism 170 may include an upper bottom portion 172, a lower bottom portion 176, and a side portion 174 connecting the upper bottom portion 172 and the lower bottom portion 176 (see Fig. 9B ). In some examples, the upper bottom portion 172 may be formed in such a manner that the end of the first limiting mechanism 150 close to the proximal end extends outwardly in a direction substantially orthogonal to the central axis CA. The side portion 174 may be a hollow cylindrical structure, and the extension direction of the side portion 174 may be substantially parallel to the central axis CA. The lower bottom portion 176 may be formed in such a manner that the end of the side portion 174 close to the proximal end extends outwardly in a direction substantially orthogonal to the central axis CA.

[0174] In some examples, the width of the lower bottom portion 176 protruding from the side portion 174 along a direction substantially orthogonal to the central axis CA may be substantially equal to the thickness of the peripheral portion 110 of the first housing 100 .

[0175] In some examples, the second limiting mechanism 170 may include a rib groove 178 disposed on the side portion 174 (see Fig. 9B). In some examples, the number of the rib grooves 178 may be one or more, such as 1, 2, 3, or 4. In some examples, the rib grooves 178 may be formed in such a manner that two ridges extending substantially along the direction of the central axis CA are arranged side by side on the side portion 174, and the rib groove 178 may be formed between the two side-by-side ridges.

[0176] In some examples, the rib groove 178 can cooperate with the peripheral rib 112 of the peripheral portion 110 to assemble and combine the first housing 100 with the second housing 140. In some examples, the number of rib grooves 178 and the number of peripheral ribs 112 can be the same. In some examples, the peripheral rib 112 can be assembled into the rib groove 178 in a plug-in manner approximately along the direction of the central axis CA. In some examples, the inner contour of the peripheral portion 110 is approximately the same as the outer contour of the second limiting mechanism 170. When the first housing 100 and the second housing 140 are moved toward each other approximately along the direction of the central axis CA, the peripheral rib 112 can enter the rib groove 178, thereby assembling and combining the first housing 100 and the second housing 140.

[0177] In some examples, the second limiting mechanism 170 may further include a mounting hole 180 disposed on the upper bottom portion 172 (see Fig. 9B ). In some examples, the number of the assembly holes 180 may be one or more, such as 1, 2, 3, or 4. In some examples, the number of the assembly holes 180 may be the same as the number of the connection posts 114 of the first housing 100. The assembly holes 180 may cooperate with the connection posts 114 to assemble and combine the first housing 100 with the second housing 140. The connection posts 114 may dock with the assembly holes 180.

[0178] In some examples, the second limiting mechanism 170 may further include a flange 183 (see Fig. 9B ).

[0179] In some examples, the receiving portion 250 can move along the second limiting mechanism 170. In some examples, when the auxiliary device 1000 is operated, the second limiting mechanism 170 is applied to the body surface of the host, thereby limiting the application position of the medical device 800.

[0180] In addition, in some examples, a side slot 182 is provided on the inner wall of the side portion 174 of the second limiting mechanism 170 (see Fig. 9A). In some examples, the number of the side slots 182 can be multiple, such as 1, 2, 3, or 4. In some examples, the multiple side slots 182 can be evenly distributed on the inner wall of the side 174. In some examples, the side slots 182 can extend substantially along the direction of the central axis CA. The side slots 182 can cooperate with the cover engaging portion 194 (described later) of the cover 190 to assemble and combine the second housing 140 with the cover 190.

[0181] In some examples, the housing 10 may further include a cover 190 detachably provided on the second housing 140 (see Figure 5B ).

[0182] In some examples, the cover 190 may include a cover bottom 192 and a cover engaging portion 194 disposed on the cover bottom 192 (see Fig.9D ). The cover snap-fitting portion 194 can cooperate with the side snap-fitting slot 182 of the second housing 140 to assemble the cover 190 with the second housing 140. The number of the cover snap-fitting portions 194 can be multiple, for example, 1, 2, 3, or 4. The number of the cover snap-fitting portions 194 can be equal to the number of the side snap-fitting slots 182. Fig.9D In the illustrated embodiment, the cover engaging portion 194 may include a cover engaging portion 194 a and a cover engaging portion 194 b. The cover engaging portion 194 a and the cover engaging portion 194 b may be distributed on opposite sides of the cover bottom 192 along the symmetry axis of the cover 190 .

[0183] In some examples, the cover engaging portion 194 may include an arm extending from the cover bottom 192 toward the distal end substantially along the central axis CA, and a protrusion protruding from the end of the arm toward a direction away from the central axis CA. The arm of the cover engaging portion 194 may be elastic. When the cover 190 is assembled and combined with the second housing 140, the protrusion of the cover engaging portion 194 may be inserted into the side slot 182 of the second housing 140.

[0184] In some examples, the cover 190 may also include a cover support 196 (see Fig.9D ). The axis of the cover support 196 can be substantially parallel to the central axis CA. In some examples, the cover support 196 can be formed by extending the cover bottom 192 toward the distal end along the central axis CA. In some examples, when the moving body 200 is retained, the vertical distance between the proximal-facing surface of the medical device 800 accommodated in the accommodating portion 250 and the lower bottom 176 of the second housing 140 can be substantially equal to the height of the cover support 196. In this case, when the cover 190 is assembled with the second housing 140, the medical device 800 accommodated in the accommodating portion 250 is supported by the cover support 196, thereby further suppressing the moving body 200 from being unexpectedly released due to, for example, misoperation.

[0185] In some examples, the cover 190 may also include a flange 198 (see Fig.9D ). The position of the flange 198 of the cover 190 may correspond to the flange 183 of the second housing 140. Specifically, when the cover 190 is assembled and combined with the second housing 140, the projection surface of the flange 198 may substantially overlap with the projection surface of the flange 183, or the projection surface of the flange 198 may substantially cover the projection surface of the flange 183 when projected in the direction along the central axis CA.

[0186] Fig. 10A is an exploded schematic diagram showing a first perspective view of the moving body 200 and the piercing member 260 involved in this embodiment example; Fig. 10B is an exploded schematic diagram showing a second viewing angle of the moving body 200 and the piercing member 260 involved in this embodiment example; Fig. 10C 2 is a schematic cross-sectional view showing the puncture member 260 according to the present embodiment when being held; Fig. 10D is a schematic cross-sectional view showing the puncture member 260 according to the present embodiment when it is released; Fig.10E 2 is a schematic cross-sectional view showing the pre-assembly of the moving body 200 and the piercing member 260 according to the present embodiment.

[0187] In some examples, the moving body 200 and the piercing member 260 can be integrally fixedly connected. In other examples, the moving body 200 and the piercing member 260 can be detachably assembled and combined. In some examples, the piercing member 260 can be releasably held by the moving body 200.

[0188] In some examples, the moving body 200 may have a first bottom 210 near the distal end, a second bottom 220 near the proximal end, and a side wall 230 connecting the first bottom 210 and the second bottom 220. In some examples, a hollow portion may be formed between the first bottom 210, the second bottom 220, and the side wall 230. In some examples, the receiving portion 250 may be disposed in the second bottom 220 and face the proximal end. In some examples, the puncture member 260 may be disposed in the hollow portion. In some examples, the second bottom 220 may have a through hole 226. In addition, in some examples, the puncture member 260 may pass through the through hole 226.

[0189] In some examples, the puncture member 260 may be releasably disposed in the hollow portion. In addition, the puncture member 260 may be configured to move relative to the moving body 200 in the hollow portion when released. In some examples, a second drive mechanism 40 may be provided between the second bottom 220 of the moving body 200 and the puncture member 260. The second drive mechanism 40 is configured to act on the puncture member 260 toward the distal end. When the puncture member 260 is released, the second drive mechanism 40 may act on the puncture member 260 toward the distal end to make the puncture member 260 leave the host. In some examples, the second drive mechanism 40 may be disposed between the support seat 280 of the puncture member 260 and the second bottom 220 of the moving body 200. Thus, it is possible to facilitate the second drive mechanism 40 to act on the puncture member 260 to move away from the accommodating portion 250.

[0190] In some examples, as described above, the moving body 200 may include a side wall 230 (see Fig. 10A and Fig. 10B ). In some examples, the moving body 200 may include a limiting portion 238 disposed on the side wall 230. The piercing member 260 may have a limiting portion 285 (described later). When the piercing member 260 is assembled and combined with the moving body 200, the moving body 200 may limit the limited portion 285 through the limiting portion 238 to limit the movement of the piercing member 260. In some examples, the number of limiting portions 238 may be one or more, such as 1, 2, 3, or 4. In some examples, a plurality of limiting portions 238 may be evenly distributed on the inner wall of the side wall 230.

[0191] In some examples, the moving body 200 may further include a second holding portion 242 (see Fig. 10A and Fig. 10B ). The puncture member 260 may have a second locking portion 286. When the puncture member 260 is assembled and combined with the moving body 200, the moving body 200 may hold the puncture member 260 by interlocking the second retaining portion 242 with the puncture member 260. In some examples, the retention of the puncture member 260 by the second retaining portion 242 may be a releasable retention. In some examples, the number of the second retaining portions 242 may be one or more, such as 1, 2, 3, or 4. In one example, a plurality of second retaining portions 242 may be evenly distributed on the side wall 230.

[0192] In addition, in some examples, the moving body 200 can be configured to inhibit the rotation of the puncture member 260. In this case, by inhibiting the puncture member 260 from rotating unexpectedly during the application process, the user experience during the application process of the medical device 800 can be improved. In some examples, the moving body 200 can inhibit the puncture member 260 from rotating unexpectedly during the application process through the application limiter 238.

[0193] In addition, in some examples, the moving body 200 may include grooves and / or ridges disposed on the inner wall of the side wall 230 substantially along the direction of the central axis CA. In this case, the grooves and / or ridges disposed on the inner wall of the side wall of the moving body 200 cooperate with the grooves and / or ridges of the puncture member 260, thereby effectively preventing the puncture member 260 from rotating undesirably during the application process. That is, in some examples, the application limiting portion 238 of the moving body 200 may be a groove and / or ridge disposed on the inner wall of the side wall 230 substantially along the direction of the central axis CA.

[0194] In some examples, the limiting portion 238 of the moving body 200 may be formed as a groove structure (see Fig. 10A and Fig. 10B In some examples, the limiting portion 238 may include two ridges disposed side by side on the inner wall of the side wall 230 substantially along the direction of the central axis CA, and a groove formed between the two ridges.

[0195] In addition, in some examples, the moving body 200 may have a cutout 242 substantially along the direction of the central axis CA. In this case, by providing the cutout 242 along the direction of the central axis CA on the moving body 200, it is possible to facilitate the application of the puncture member 260 provided in the hollow portion of the moving body 200.

[0196] In addition, in some examples, a protrusion 160 that can protrude toward the central axis CA through the cutout 242 can be provided on the inner wall of the first limiting mechanism 150. In this case, when the moving body 200 moves along the first limiting mechanism 150, the protrusion 160 provided on the inner wall of the first limiting mechanism 150 can act on the puncture member 260 through the cutout 242 of the moving body 200, thereby providing a trigger mechanism for the puncture member 260 with a simplified structure.

[0197] In some examples, the second retaining portion 242 of the moving body 200 may be a cutout formed on the side wall 230 (see Fig. 10A and Fig. 10B). In some examples, the second retaining portion 242 may include a first notch 244 and a second notch 246 extending substantially along the central axis CA and communicating with each other. The first notch 244 may be close to the proximal end, and the second notch 246 may be close to the distal end. In some examples, the widths of the first notch 244 and the second notch 246 may be different. In some examples, the width of the first notch 244 may be greater than the width of the second notch 246.

[0198] In some examples, the receiving portion 250 may have a restraining portion 252 for restraining the application portion 860. In this case, the application portion 860 of the medical device 800 received in the receiving portion 250 is restrained by the restraining portion 252, thereby being able to more stably receive the medical device 800.

[0199] In some examples, the constraint portion 252 of the accommodating portion 250 may include an arm 254 and a protrusion 256. Among them, the arm 254 may extend outward from the bottom of the accommodating portion 250 in a direction substantially the same as the side portion. In some examples, the arm 254 and the side portion of the accommodating portion 250 may be substantially located in the same circumferential direction. In some examples, the arm 254 may be elastic. In some examples, the arm 254 may be close to the central axis CA. In some examples, the protrusion 256 may be a protrusion provided on the end of the arm 254. In some examples, the protrusion 256 may protrude toward the central axis CA. In this case, the constraint portion 252 can hold the medical device 800 accommodated in the accommodating portion 250, thereby being able to accommodate the medical device 800 more firmly.

[0200] In some examples, the number of the constraint portions 252 may be one or more, such as 1, 2, 3, or 4. In some examples, the constraint portions 252 may be evenly distributed along the side of the receiving portion 250 .

[0201] In some examples, the piercing member 260 may include a sharp object 270 and a support seat 280 for supporting the sharp object 270 (see Fig. 10A and Fig. 10B ). In some examples, the support seat 280 of the puncture member 260 can be disposed in the hollow portion of the moving body 200, the receiving portion 250 can be disposed at the second bottom portion 220, the second bottom portion 220 can have a through hole 226, and the sharp object 270 can pass through the through hole 226 of the second bottom portion 220. In this case, by disposing the sharp object 270 to pass through the through hole 226 of the second bottom portion 220, the sharp object 270 can be engaged with the medical device 800 accommodated in the receiving portion 250, thereby facilitating the medical device 800 to be at least partially placed under the skin of the host through the puncture member 260.

[0202] In addition, in some examples, the moving body 200 may further include a structure 224 disposed on the second bottom 220 for positioning the second driving mechanism 40 (see Fig. 10C ). In some examples, 224 may be columnar. In some examples, 224 may be hollow cylindrical. In this case, the second drive mechanism 40 may be positioned by being sleeved on 224, thereby defining the driving position of the second drive mechanism 40.

[0203] In addition, in some examples, when the puncture member 260 is held, the distance between the support seat 280 and the first bottom portion 210 may be no less than the length of the sharp object 270 protruding from the receiving portion 250. In this case, by setting the distance between the support seat 280 and the first bottom portion 210 to be no less than the length of the sharp object 270 protruding from the receiving portion 250, it is possible to provide a moving space for the puncture member 260 to leave the host, thereby reducing the puncture member 260 from causing undesirable damage to the host.

[0204] In some examples, the sharp object 270 and the support seat 280 can be integrally formed. In other examples, the sharp object 270 and the support seat 280 can be configured to be detachably assembled and combined. Thus, it is convenient to sterilize the sharp object 270 separately.

[0205] In some examples, the restricted portion 285 of the piercing member 260 can be formed as a ridge structure (see Fig. 10B ). In some examples, the restricted portion 285 may include two grooves arranged side by side on the side wall of the support seat 280 substantially along the direction of the central axis CA, and a ridge formed between the two grooves. In some examples, the number of the restricted portions 285 may be one or more, such as 1, 2, 3, or 4. In some examples, the number of the restricted portions 285 may be equal to the number of the limiting portions 238.

[0206] In addition, in some examples, the support seat 280 may include grooves and / or ridges disposed on the outer wall substantially along the direction of the central axis CA. In this case, the grooves and / or ridges of the support seat 280 cooperate with the grooves and / or ridges on the inner wall of the side wall of the moving body 200, thereby effectively preventing the puncture member 260 from rotating unexpectedly. In other words, the restricted portion 285 of the puncture member 260 may be formed as a groove and / or ridge disposed on the outer wall substantially along the direction of the central axis CA. The restricted portion 285 of the puncture member 260 may cooperate with the limiting portion 238 of the moving body 200 to prevent the puncture member 260 from rotating unexpectedly.

[0207] In addition, in some examples, the piercing member 260 may include a second locking portion 286 configured to be releasably interlocked with the second retaining portion 242. Thus, the piercing member 260 can be releasably retained in the second retaining portion 242 by the cooperation between the second locking portion 286 and the second retaining portion 242. In some examples, the second locking portion 286 may be disposed on the support seat 280 of the piercing member 260.

[0208] In some examples, the second locking portion 286 may include an arm 287 extending substantially along the direction of the central axis CA, and a protrusion 288 that is linked with the arm 287 and protrudes substantially along the direction orthogonal to the central axis CA away from the central axis CA. In this case, when the puncture member 260 is placed in the hollow portion of the moving body 200, the second locking portion 286 overlaps the cutout 242 of the moving body 200, thereby being able to retain the puncture member 260 with a simplified structure. In some examples, the arm 287 of the second locking portion 286 may be elastic in a direction substantially orthogonal to the central axis CA of the auxiliary device 1000.

[0209] That is, in some examples, the moving body 200 may have a cutout 242 substantially along the direction of the central axis CA. In some examples, when the puncture member 260 is held, the protrusion 288 of the second locking portion 286 may pass through the cutout 242. In this case, by overlapping the protrusion 288 of the second locking portion 286 with the cutout 242 of the moving body 200, the second locking portion 286 can be held with a simplified structure.

[0210] In addition, in some examples, when the piercing member 260 is released, the arm 288 of the second locking portion 286 may be pressed toward the central axis CA. Thus, the second locking portion 286 can be released in a simple and convenient manner.

[0211] In addition, in some examples, the second retaining portion 242 and the second locking portion 286 can be releasably interlocked by at least one structure of a buckle, a hook, a latch, or a pin. In this case, the second retaining portion 242 and the second locking portion 286 are releasably interlocked by at least one structure of a buckle, a hook, a latch, or a pin, thereby providing an interlocking method that is easy to release.

[0212] In some examples, the second locking portion 286 of the piercing member 260 can be formed as a shoulder structure (see Fig. 10A and Fig. 10B). In some examples, the second locking portion 286 may include an arm 287 extending toward the distal end substantially along the direction of the central axis CA, and a protrusion 288 protruding from the end of the arm 287 along a direction substantially orthogonal to the central axis CA and away from the central axis CA. In some examples, the arm 287 may be elastic. In some examples, along the central axis CA and in the direction toward the distal end, the arm 287 may gradually move away from the central axis CA. In some examples, when projected along the direction of the central axis CA, the projection surface of the protrusion 288 may completely or partially overlap with the projection surface of the first cutout 244. In some examples, the number of the second locking portions 286 may be one or more, such as 1, 2, 3, or 4. In some examples, the number of the second locking portions 286 may be equal to the number of the second retaining portions 242.

[0213] Additionally, in some examples, the width of the distal-facing surface of protrusion 288 may be less than the width of first cutout 244 , and may be greater than the width of second cutout 246 .

[0214] In some examples, when the first limiting mechanism 150 and the moving body 200 are assembled, the protrusion 160 provided on the inner wall of the first limiting mechanism 150 can pass through the second incision 246 and the first incision 244 in sequence. In this case, by providing the first incision 244, a holding mechanism for the piercing member 260 can be provided, and in addition, by providing the second incision 246, a structure that facilitates assembly can be provided. The protrusion 160 passes through the second incision 246 and enters the first incision 244, and the protrusion 288 of the second locking portion 286 protrudes through the first incision 244, thereby providing a holding mechanism for the piercing member 260, and in addition, the protrusion 160 can pass through the first incision 244 and abut against the protrusion 288 of the second locking portion 286, thereby, through the protrusion 160 and the first incision 244, a trigger mechanism for triggering the release of the second locking portion 286 can also be provided.

[0215] See also Fig.10E By applying force to the puncture member 260 toward the proximal end, the puncture member 260 enters the hollow portion of the moving body 200, and the limiting portion 285 of the puncture member 260 is aligned one by one with the limiting portion 238 of the moving body 200, and the limiting portion 285 can be embedded in the limiting portion 238 (see Fig.10E ). Thus, on the one hand, it can provide guidance for the assembly of the puncture member 260 and the moving body 200; on the other hand, the puncture member 260 assembled in the moving body 200 is limited by the limiting portion 238, and the undesired rotation can be effectively suppressed.

[0216] Also, see Fig. 10C and Fig. 10DWhen the projection 288 of the second locking portion 286 of the piercing member 260 is moved to the first incision 244, the arm 287 returns to its initial state because it is no longer squeezed by the inner wall of the side wall 230, that is, the projection surface of the projection 288 along the central axis CA completely or partially overlaps with the projection surface of the first incision 244, and because the width of the surface of the projection 288 facing the distal end is greater than the width of the second incision 246, the projection 288 is placed in the first incision 244 and the surface of the projection 288 facing the distal end abuts against the intersection of the first incision 244 and the second incision 246 (see FIG. Fig. 10C ), so that it is held in the hollow part of the moving body 200. When the arm 287 is acted upon to pivot toward the direction of the central axis CA, the projection 288 moves toward the direction of the central axis CA, i.e., collapses inward. In this case, the surface of the projection 288 facing the distal end no longer abuts against the intersection of the first notch 244 and the second notch 246, so that the piercing member 260 is released by the moving body 200 (see Fig. 10D ).

[0217] In some examples, after the piercing member 260 is released by the moving body 200 , the second driving mechanism 40 drives the piercing member 260 toward the distal end so that the piercing member 260 leaves the host.

[0218] In some examples, the second drive mechanism 40 and the first drive mechanism 30 may have the same or similar configuration, and the features of the second drive mechanism 40 may refer to the description of the features of the first drive mechanism 30. In some examples, the second drive mechanism 40 may be a spring. Thus, an actuation mechanism can be provided for the piercing member 260 through a simplified structural design.

[0219] In some examples, the second driving mechanism 40 may be disposed between the support seat 280 and the second bottom portion 220, and when the puncture member 260 is held, the distance between the support seat 280 and the first bottom portion 210 is not less than the depth of the sensor 820 implanted subcutaneously. In this case, by providing sufficient movement space for the puncture member 260, it is possible to facilitate the puncture member 260 to leave the host.

[0220] In some examples, the piercing member 260 may have a positioning portion 289 disposed on the support seat 280 (see Fig. 10C or Fig. 10D In some examples, the positioning portion 289 may be a columnar structure. One end of the second driving mechanism 40 may be sleeved on the positioning portion 289 of the puncture member 260, and the other end of the second driving mechanism 40 may be sleeved on the positioning portion 212 of the moving body 200. In this way, the second driving mechanism 40 is disposed between the moving body 200 and the puncture member 260.

[0221] In some examples, the auxiliary device 1000 further provides a trigger mechanism to enable the second retaining portion 242 to release the interlocking of the second locking portion 286, thereby releasing the puncture member 260 from the moving body 200. That is, in some examples, the auxiliary device 1000 further includes a second trigger mechanism configured to separate the second retaining portion 242 from the second locking portion 286 to release the puncture member 260. Thus, the puncture member 260 can be conveniently released by the second trigger mechanism.

[0222] As described above, the second locking portion 286 is formed as a shoulder structure that can abut against the second retaining portion 242, so that it is retained by the second retaining portion 242 in a buckle manner. In some examples, such a trigger mechanism is provided, that is, the second retaining portion 242 or the second locking portion 286 can be actuated to separate the second retaining portion 242 from the second locking portion 286.

[0223] In some examples, a trigger mechanism acting on the second retaining portion 242 and the second locking portion 286 can be set on the travel path of the second locking portion 286. When the moving body 200 moves toward the proximal end, the trigger mechanism can be invoked. In some examples, the trigger mechanism can be a protrusion set on the travel path of the second locking portion 286. In this case, when the second locking portion 286 passes through the protrusion, the arm 287 of the second locking portion 286 can be squeezed toward the central axis CA and elastically deformed to separate the protrusion 288 of the second locking portion 286 from the first notch 244 and the second notch 246.

[0224] In some examples, as described above, a protrusion 160 is provided on the inner wall of the first limiting mechanism 150 (see Fig. 9B ). When the moving body 200 moves along the first limiting mechanism 150, the first incision 244 and the second incision 246 of the moving body 200 can pass through the protrusion. In addition, when the puncture member 260 is held in the hollow portion of the moving body 200, the second locking portion 286 of the puncture member 260 is squeezed by the protrusion 160 and deformed, and leaves the intersection of the first incision 244 and the second incision 246, so that the puncture member 260 is released.

[0225] In addition, when the moving body 200 and the first limiting mechanism 150 are assembled, the protrusion 160 can pass through the second cutout 246 and the first cutout 244 in sequence until the moving body 200 is assembled and combined with the first limiting mechanism 150. By providing the protrusion 160 on the inner wall of the first limiting mechanism 150 and the first cutout 244 and the second cutout 246 on the side wall 230 of the moving body 200, a trigger mechanism can be provided during travel without adversely affecting the assembly of the moving body 200 and the first limiting mechanism 150.

[0226] In some examples, when the moving body 200 is held and the puncture member 260 is also held, in the direction along the central axis CA of the auxiliary device 1000, the distance between the side of the accommodating portion 250 close to the proximal end and the side of the second limiting mechanism 170 close to the proximal end is substantially equal to the distance between the protrusion 160 of the first limiting mechanism 150 and the protrusion 288 of the second locking portion 286 (i.e., the distance between the protrusion 160 of the first limiting mechanism 150 and the second incision 246). In this case, when the accommodating portion 250 moves to the body surface of the host along the second limiting mechanism 170, the puncture member 260 can be released, so that the puncture member 260 can be retracted to leave the host at an appropriate time.

[0227] The following describes the application process of the auxiliary device 1000 again: applying the medical device 800 to the host through the auxiliary device 1000 may include an application phase and a withdrawal phase. In the application phase, the medical device 800 may be applied to the host; in the withdrawal phase, the puncture member 260 may leave the host.

[0228] In the application stage, the pressing portion 502 of the first trigger mechanism 50 is pressed to move the actuating portion 504 of the first trigger mechanism 50 toward the proximal end; then, when the actuating portion 504 moves to the first holding mechanism 130, the actuating portion 504 actuates the first holding mechanism 130 to pivot in a direction away from the central axis CA (see Figure 8I and Figure 8J ) to separate the first retaining portion 130 from the first locking portion 236 (see Figure 7B and Figure 7C ), thereby releasing the moving body 200; then, the first driving mechanism 30 acts on the moving body 200 in a proximal manner to move the moving body 200 toward the proximal end; then, under the action of the puncture member 260, the medical device 800 accommodated in the accommodating portion 250 is at least partially placed under the skin of the host.

[0229] In some examples, the auxiliary device 1000 may not include the first driving mechanism 30. In this case, after the moving body 200 is released, the moving body 200 may also be driven toward the host by manpower, so that the medical device 800 contained in the receiving portion 250 is applied to the host through the puncture member 260.

[0230] In the retracting stage, as the moving body 200 moves toward the proximal end along the first limiting mechanism 150, the protrusion 160 provided on the inner wall of the first limiting mechanism 150 passes through the first incision 244 provided on the moving body 200 and approaches the second locking portion 286 of the piercing member 260, and the protrusion 160 presses the second locking portion 286 to pivot the second locking portion 286 in a direction close to the central axis CA, so that the second locking portion 286 is separated from the second retaining portion 242 (see Fig. 10C and Fig. 10D ); then, the second driving mechanism 40 acts on the puncture member 260 in a distal manner so that the puncture member 260 moves toward the distal end and leaves the host.

[0231] In some examples, the puncture member 260 may also be fixedly connected to the moving body 200. In addition, in some examples, the auxiliary device 1000 may also not include the second driving mechanism 40. In this case, after the medical device 800 is applied to the host, the moving body 200 may be driven as a whole in a direction away from the host by manpower, so that the puncture member 260 fixedly connected to the moving body 200 may follow the moving body 200 and leave the host.

[0232] In addition, it should be noted that, in the retraction stage, the first driving mechanism 30 (or with the help of manpower) can still exert an action on the moving body 200 toward the host. In other words, for the first driving mechanism 30 configured as an elastic component (e.g., a spring), when the moving body 200 is driven toward the host and the medical device 800 accommodated in the accommodation portion 250 is applied to the body surface of the host, the first driving mechanism 30 can still be in an energy storage state. In this case, in the retraction stage, the medical device 800 is closely attached to the body surface of the host under the action of the first driving mechanism 30, thereby effectively reducing the possibility of the medical device 800 detaching from the host in the retraction stage.

[0233] Fig.11A 2 is an exploded schematic diagram showing a puncture member 260 according to the present embodiment; Fig. 11B 2 is a schematic diagram showing the assembly of the puncture member 260 according to the present embodiment; Fig. 11C It is an enlarged schematic diagram showing the needle-shaped portion 272 according to the present embodiment example.

[0234] As described above, in this embodiment, the piercing member 260 may include a sharp object 270 and a support seat 280 for supporting the sharp object 270 (see Fig.11A). In some examples, the sharp object 270 and the support seat 280 can be integrally formed. In other examples, the sharp object 270 can be detachably assembled with the support seat 280. In some examples, the sharp object 270 can have a groove, and the medical device 800 can be placed in whole or in part in the groove. In some examples, the second drive mechanism 40 can apply action to the support seat 280. In this case, by placing the medical device 800 in whole or in part in the groove of the sharp object 270, it is possible to facilitate the medical device 800 to be at least partially placed under the skin of the host through the puncture member 260. In some examples, the implanted portion of the sensor 820 can be placed in the groove 274 of the sharp object 270.

[0235] In some examples, the sharp object 270 may include a needle portion 272 (see Fig.11A ). In some examples, a groove 274 extending along the length direction of the needle-shaped portion 272 may be provided on the needle-shaped portion 272. The medical device 800 may be at least partially disposed in the groove 274 of the sharp object 270. In this case, the sensor 820 may be received in the groove 274 so that the sensor 820 follows the sharp object 270 and is placed under the skin of the host.

[0236] In some examples, the sharp object 270 may include a cap portion 276 connected to the needle portion 272 (see Fig.11A ). In some examples, the needle portion 272 can be assembled to the support seat 280 through the cap portion 276. In some examples, the cap portion 276 can include a first portion 277, a second portion 278, and a third portion 279 connected in sequence. In some examples, the first portion 277, the second portion 278, and the third portion 279 can be three columnar structures with different diameters. In addition, in some examples, the diameter of the second portion 278 can be smaller than the diameter of the first portion 277 and smaller than the diameter of the third portion 279, thereby forming an annular recess.

[0237] In some examples, the support seat 280 may include a sharp object fixing portion 282 (see Fig.11A ). In some examples, the number of the sharp object fixing portion 282 can be multiple, for example, 2, 3, or 4. In addition, multiple sharp object fixing portions 282 can be circumferentially arranged around the central axis CA to clamp the cap portion 276. In some examples, the support seat 280 can have multiple finger-shaped portions that gather together, and the cap portion 276 can be releasably clamped by the multiple finger-shaped portions. In other words, the sharp object fixing portion 282 of the support seat 280 can be formed as multiple finger-shaped portions that gather together. In this case, the cap portion 276 of the sharp object 270 cooperates with the multiple finger-shaped portions of the support seat 280, thereby facilitating the assembly and disassembly between the sharp object 270 and the support seat 280.

[0238] In some examples, the sharp object fixing portion 282 may gradually converge toward the central axis CA in the direction along the central axis CA and toward the proximal end. Thus, a mechanism for clamping the cap portion 276 can be formed. In some examples, the sharp object fixing portion 282 may include an arm 283 extending generally along the direction of the central axis CA, and a protrusion 284 protruding outward from the end of the arm 283 toward the central axis CA (see Fig.11A ). In some examples, the arm 283 may be elastic. When the sharp object 270 is assembled with the support seat 280, the protrusion 284 of the sharp object fixing portion 282 may be embedded in the annular recess of the cap portion 276. The first portion 277, the third portion 279, and the annular recess cooperate with each other to fix the sharp object 270. The first portion 277 and the third portion 279 abut against the protrusion 284 from two directions respectively. This can prevent the sharp object 270 from undesirably moving relative to the support seat 280 along the central axis CA.

[0239] Although the present disclosure is specifically described above in conjunction with the accompanying drawings and embodiments, it is to be understood that the above description does not limit the present disclosure in any form. Those skilled in the art may modify and change the present disclosure as needed without departing from the essential spirit and scope of the present disclosure, and these modifications and changes all fall within the scope of the present disclosure.

Claims

1. An application device, characterized in that: The application device can apply a medical device to a host, and the application device includes a housing and an auxiliary mechanism.

2. The application device according to claim 1, characterized in that: The auxiliary mechanism includes a moving body.

3. The application device according to claim 1, characterized in that: The auxiliary mechanism includes a receiving portion configured to receive and accommodate the medical device.

4. The application device according to claim 1, characterized in that: The auxiliary mechanism includes a puncture member, and the medical device is at least partially placed under the skin of the host through the puncture member.

5. The application device according to claim 1, characterized in that: The application device comprises a first trigger mechanism.

6. The application device according to claim 1, characterized in that: The application device comprises a second trigger mechanism.

7. The application device according to claim 1, characterized in that: The application device comprises a drive mechanism.

8. The application device according to claim 1, characterized in that: The housing includes a first shell and a second shell that can be assembled to the first shell.

9. The application device according to claim 1, characterized in that: The housing includes a first retaining portion, and the auxiliary mechanism includes a moving body including a first locking portion configured to releasably interlock with the first retaining portion.

10. The application device according to claim 9, characterized in that: The moving body includes a second holding portion, the auxiliary mechanism includes a piercing member, and the piercing member includes a second locking portion configured to be releasably interlocked with the second holding portion.

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