Implantation tool

Abstract

This invention provides an implantation tool, comprising a housing, a pusher, a drive button, a transmitter assembly, and an implantation needle assembly. The pusher is snapped into the housing. The drive button is used to disengage the pusher. The transmitter assembly includes a transmitter and a sensor; the transmitter is detachably mounted to the pusher, and the sensor is mounted to the transmitter. The implantation needle assembly includes a needle cap, a needle, an implantation needle, a sealing tube assembly, and a needle withdrawal drive. The needle cap is snapped into the pusher. The needle abuts against the end face of the sensor. One end of the implantation needle is connected to the needle head, and the other end passes through and exits the sensor. The sealing tube assembly is detachably mounted to the transmitter assembly and abuts against the needle head to press the needle head firmly against the end face of the sensor. The needle withdrawal drive is connected to the needle cap and moves the needle cap during needle withdrawal, separating the sealing tube assembly, the needle head, and the transmitter assembly. Compared with the prior art, the implantation tool of this invention can improve the sealing protection effect on the sensor.

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, and more particularly to an implantation tool. Background Technology

[0002] A continuous glucose monitoring (CGM) system is used to monitor blood glucose levels in the human body. Current CGM systems involve implanting a blood glucose sensor subcutaneously. Enzymes on the sensor react with subcutaneous fluid to detect blood glucose levels, which are then transmitted to a terminal via a transmitter, thus providing continuous blood glucose monitoring. For CGM systems, an implantation tool is an essential component, allowing for the simple and quick insertion of both the sensor and transmitter into the body.

[0003] Existing implantable devices typically include a housing, a drive button, a ejector, a transmitter, a sensor, and an implantation needle. The ejector is snapped onto the housing, and the transmitter, sensor, and implantation needle are all mounted on the ejector. The drive button is used to unlock the ejector. When the drive button is pressed, it disengages the ejector from the housing, causing the ejector, sensor, and implantation needle to move synchronously. After the ejector has moved a certain distance, the implantation needle penetrates the patient's body, allowing the sensor to come into contact with the patient's blood and detect blood glucose levels.

[0004] However, sensors in existing implantation tools are susceptible to contamination. To better prevent sensor contamination, incorporating a sealing mechanism within the implantation tool to seal the sensor is a superior protective measure.

[0005] After the implantation tool is used, the transmitter and sensor need to remain on the patient's body, and all other components of the implantation tool need to be separated from the transmitter and sensor.

[0006] Therefore, how to provide an implantation tool that can effectively seal and protect the sensor when not in use, and whose sealing mechanism can be smoothly separated from the sensor after use, is a problem that urgently needs to be solved in this field. Summary of the Invention

[0007] To address the technical problem of sensor contamination in existing implantation tools, this invention provides an implantation tool that effectively seals and protects the sensor, better preventing contamination. Furthermore, after use, the sensor-sealing mechanism can be smoothly separated from the sensor without affecting the normal operation of the implantation tool.

[0008] An implantation tool includes a housing, a pusher, a drive button, a transmitter assembly, and an implantation needle assembly;

[0009] The ejector is snapped into the housing;

[0010] The drive button is mounted on the housing and is used to drive the ejector to disengage from the housing;

[0011] The transmitter assembly includes a transmitter and a sensor, wherein the transmitter is detachably mounted to the launcher and the sensor is mounted on the transmitter;

[0012] The implantation needle assembly includes a needle cap, a needle, an implantation needle, a sealing tube assembly, and a needle withdrawal drive.

[0013] The needle cap is fastened in the ejector component;

[0014] The needle abuts against the end face of the sealing cap of the sensor;

[0015] One end of the implantation needle is connected to the needle tip, and the other end passes through the sensor and exits from the sensor;

[0016] The sealing tube assembly is detachably installed on the transmitter assembly and abuts against the needle to press the needle against the end face of the sensor's sealing cover;

[0017] The needle retraction drive is connected to the needle cap and is used to move the needle cap relative to the ejector during needle retraction, so that the needle cap moves the sealing tube assembly and the needle, thereby separating the sealing tube assembly, the needle, and the transmitter assembly.

[0018] Preferably, the needle includes a needle body and a seal, the seal being disposed between the needle body and the sealing cap of the sensor;

[0019] The sealing pipe assembly includes a clutch pipe and a conversion sleeve;

[0020] The clutch tube is rotated and locked onto the transmitter assembly, and the clutch tube abuts against the needle body to press the seal against the end face of the sensor's sealing cover;

[0021] The conversion sleeve is configured corresponding to the needle cap and can move under the drive of the needle cap to rotate and unlock the clutch tube, and to move the clutch tube.

[0022] Preferably, the sealing tube assembly further includes a stop cap;

[0023] The stop cap is detachably mounted on the clutch tube to restrict rotation between the needle body and the clutch tube;

[0024] The conversion sleeve is also used to drive the stop cover to separate from the clutch tube.

[0025] Preferably, the clutch tube has helical rifling, and the conversion sleeve is provided with a plug that can be inserted into the helical rifling.

[0026] Preferably, the sensor includes a sensor body and a sealing cover of the sensor disposed on the top of the sensor body;

[0027] The clutch tube is rotated and locked onto the snap fastener of the sensor's sealing cover.

[0028] Preferably, the ejector includes an ejector body and a latching part and a locking pin part disposed on the ejector body;

[0029] The latching part is latched onto the elastic cantilever on the housing;

[0030] The locking pin part and the ejector body together form a locking needle cavity, and the locking pin part snaps the needle cap into the locking needle cavity.

[0031] Preferably, the ejector further includes a pushing part disposed on the ejector body;

[0032] The pushing part is provided corresponding to the driving button and is used to push the driving button to move relative to the housing so that the driving button squeezes and limits the elastic cantilever so that the elastic cantilever latches the buckling part.

[0033] Preferably, it also includes a limiting block;

[0034] The limiting block is snapped onto the housing, and the limiting block abuts against the locking pin portion and squeezes and limits the locking pin portion so that the locking pin portion snaps the needle cap into the locking needle cavity;

[0035] After the ejector is disengaged from the housing, the locking pin portion can separate from the limiting block, so that the needle retraction drive can drive the needle cap to disengage from the locking pin cavity.

[0036] Preferably, it also includes a sleeve, which is rotatably locked onto the bottom shell of the transmitter;

[0037] The portion of the sensor extending from the transmitter and the portion of the implanted needle protruding from the sensor are both located within the cannula.

[0038] Preferably, it also includes a base support, the base support comprising a base support body and a support rod connected to the base support body;

[0039] The base body is detachably connected to the housing;

[0040] The support rod extends into the housing and supports and limits the drive button;

[0041] The sleeve is installed on the base body.

[0042] Compared with the prior art, the implantation tool provided by the present invention includes a housing, a pusher component, a drive button, a transmitter assembly, and an implantation needle assembly; the pusher component is snapped into the housing; the drive button is installed in the housing and is used to drive the pusher component to disengage from the housing; the transmitter assembly includes a transmitter and a sensor, the transmitter is detachably installed in the pusher component, and the sensor is installed in the transmitter; the implantation needle assembly includes a needle cap, a needle, an implantation needle, a sealing tube assembly, and a needle withdrawal drive component; the needle cap is snapped into the pusher component. The needle abuts against the end face of the sensor's sealing cap; one end of the implantation needle is connected to the needle tip, and the other end passes through the sensor and exits from the sensor; the sealing tube assembly is detachably installed on the transmitter assembly and abuts against the needle tip to press the needle tip tightly against the end face of the sensor's sealing cap; the needle retraction drive is connected to the needle cap and is used to move the needle cap relative to the pusher during needle retraction, so that the needle cap moves the sealing tube assembly and the needle tip, separating the sealing tube assembly, the needle tip, and the transmitter assembly. The implantation tool is equipped with the sealing tube assembly, which abuts against the needle tip, thereby pressing the needle tip tightly against the end face of the sensor's sealing cap, thus achieving effective sealing of the sensor. The overall structure is robust and can effectively ensure the sealing protection effect of the sensor. Furthermore, during needle withdrawal in the implantation tool, the sealing tube assembly can separate from the transmitter assembly under the action of the needle cap, without remaining on the transmitter assembly and thus not affecting the normal use of the implantation tool. Simultaneously, during needle withdrawal, the sealing tube assembly is moved by the needle cap to separate the sealing mechanism, reducing the overall required structure and making the overall structure simpler and more reliable. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 Top view of an implantation tool provided in one embodiment;

[0045] Figure 2 For along Figure 1A schematic diagram of the cross-sectional structure of AA shown;

[0046] Figure 3 For along Figure 1 A schematic diagram of the cross-sectional structure of BB shown;

[0047] Figure 4 for Figure 1 The diagram shows the structure after the implantation tool has been used.

[0048] Figure 5 for Figure 1 A cross-sectional schematic diagram of some structures in the implantation tool shown (when the clutch tube and the snap fastener are in the locked state);

[0049] Figure 6 for Figure 5 An exploded view of some parts in the structure shown.

[0050] Figure 7 for Figure 1 A cross-sectional structural diagram of a portion of the implantation tool shown;

[0051] Figure 8 for Figure 7 A schematic diagram of the exploded structure shown;

[0052] Figure 9 for Figure 7 A schematic diagram of the exploded structure from another angle;

[0053] Figure 10 for Figure 7 A three-dimensional structural diagram of the structure shown;

[0054] Figure 11 for Figure 1 A schematic cross-sectional view of the implantation tool before the ejector is inserted into the housing.

[0055] Figure 12 for Figure 1 A schematic cross-sectional view of the implantation tool with the ejector component inserted into the housing.

[0056] Figure 13 for Figure 1 A schematic cross-sectional view of the implantation tool after the ejector component is inserted into the housing.

[0057] Figure 14 for Figure 1 A schematic diagram of the cross-sectional structure of the implantation tool when the limiting block and the jacking pin are in contact.

[0058] Figure 15 for Figure 1 A schematic diagram of the cross-sectional structure of the implantation tool when the limiting block and the locating pin are separated.

[0059] Figure 16 for Figure 1 A cross-sectional view of the implantation tool from another angle when the limiting block and the jacking pin are in contact.

[0060] Figure 17 for Figure 1 A cross-sectional view of the implantation tool from another angle when the limiting block and the jacking pin are separated.

[0061] Figure 18 for Figure 1 The diagram shows the structure of some parts in the implantation tool.

[0062] Figure 19 for Figure 18 A magnified view of a portion of region C shown. Detailed Implementation

[0063] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0064] It should be noted that when a component is referred to as being "fixed to", "mounted to", or "set on" another component, it can be directly on or indirectly set on the other component; when a component is "connected" to another component, or when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0065] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0067] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0068] This invention provides an implantation tool, comprising a housing, a ejector, a drive button, a transmitter assembly, and an implantation needle assembly; the ejector is snap-fitted into the housing; the drive button is mounted on the housing and is used to drive the ejector to disengage from the housing; the transmitter assembly includes a transmitter and a sensor, the transmitter being detachably mounted to the ejector, and the sensor being mounted on the transmitter; the implantation needle assembly includes a needle cap, a needle, an implantation needle, a sealing tube assembly, and a needle withdrawal drive; the needle cap is snap-fitted into the ejector. The needle abuts against the end face of the sensor; one end of the implantation needle is connected to the needle tip, and the other end passes through the sensor and exits from the sensor; the sealing tube assembly is detachably installed on the transmitter assembly and abuts against the needle tip to press the needle tip against the end face of the sensor; the needle withdrawal drive is connected to the needle cap and is used to drive the needle cap to move relative to the pusher during needle withdrawal, so that the needle cap drives the sealing tube assembly and the needle tip to move, separating the sealing tube assembly, the needle tip and the transmitter assembly. The implantation tool is provided with the sealing tube assembly, which abuts against the needle tip, thereby pressing the needle tip against the end face of the sensor's sealing cap, thus achieving effective sealing of the sensor. The overall structure is robust and can effectively ensure the sealing protection effect of the sensor. Furthermore, when the needle is withdrawn in the implantation tool, the sealing tube assembly can be separated from the transmitter assembly by the movement of the needle cap, and will not remain on the transmitter assembly, thus not affecting the normal use of the implantation tool. Meanwhile, during the needle retraction process, the needle cap drives the sealing tube assembly to separate the sealing mechanism, which also reduces the number of structures required and makes the overall structure simpler and more reliable.

[0069] Please refer to the following: Figures 1 to 10This embodiment provides an implantation tool 100, which includes a housing 10, a pusher 20, a drive button 30, a transmitter assembly 40, and an implantation needle assembly 50. The housing 10 has a receiving space 11 with an opening at one end. The pusher 20 is snapped into the housing 10. It should be noted that in this embodiment, "snap" refers to a connection between one component and another through a corresponding snap structure, and the two components can be separated from each other in a certain state. The drive button 30 is disposed on the housing 10, and the drive button 30 is used to drive the pusher 20 to disengage from the housing 10. That is, the change of the state of the pusher 20 is driven by the drive button 30, which can change the pusher 20 from a "snap" state to a "disengaged" state, so that the pusher 20 is separated from the housing 10.

[0070] The transmitter assembly 40 includes a transmitter 41 and a sensor 42. The transmitter 41 is detachably mounted on the pusher member 20, and the sensor 42 is mounted on the transmitter 41. The specific structure by which the transmitter 41 is detachably mounted on the pusher member 20 can adopt any desired structure, such as a snap-fit ​​connection or a threaded connection, as long as the transmitter 41 can be stably fixed to the pusher member 20 when the pusher member 20 is in the snap-fit ​​state, so that the pusher member 20 can correspondingly drive the transmitter 41 to move after disengaging; and simultaneously, the transmitter 41 can be separated from the pusher member 20 after it has moved to its designated position.

[0071] The implantation needle assembly 50 includes a needle cap 51, a needle 52, an implantation needle 53, a sealing tube assembly 54, and a needle withdrawal drive 55. The needle cap 51 is snap-fitted into the ejector assembly 20, and the needle 52 abuts against the end face of the sensor's sealing cover 424. One end of the implantation needle 53 is connected to the needle 52, and the other end passes through and exits the sensor 42. The sealing tube assembly 54 is detachably installed in the transmitter assembly 40 and abuts against the needle 52 to press the needle 52 against the end face of the sensor's sealing cover 424. The needle withdrawal drive 55 is connected to the needle cap 51 and, during needle withdrawal, moves the needle cap 51 relative to the ejector assembly 20, causing the needle cap 51 to move the sealing tube assembly 54 and the needle 52, separating them from the transmitter assembly 40. Here, "needle withdrawal" refers to the process of retracting the implantation needle 53 after the implantation tool 100 has been used and the needle 53 has been inserted into the patient's body.

[0072] Understandably, in this embodiment, the sealing tube assembly 54 is used to press the needle 52, thereby ensuring a tighter contact between the needle 52 and the sensor 42, thus better guaranteeing the sealing effect on the sensor 42. Furthermore, the sealing tube assembly 54 is detachably connected to the transmitter assembly 40. During needle withdrawal, the needle cap 51 can drive the sealing tube assembly 54 to separate from the transmitter assembly 40, ensuring that the sealing tube assembly 54 does not remain on the transmitter assembly 40 and does not affect the normal use of the implantation tool 100.

[0073] When in use, the implantation tool 100 is activated by pressing the drive button 30, causing the ejector 20 to disengage from the housing 10. The ejector 20 then moves under the influence of the drive spring. Once the ejector 20 has moved a certain distance, the implantation needle 53 pierces the patient's body, while the transmitter 41 adheres to the patient's skin, and the sensor 42 comes into contact with the patient's blood, enabling blood glucose level detection. Simultaneously, the needle withdrawal drive 55 provides driving force to retract the needle cap 51. During the movement of the needle cap 51, the sealing tube assembly 54 and the needle 52 move synchronously, causing the sealing tube assembly 54 to separate from the transmitter assembly 40. The needle 52 then drives the implantation needle 53 to retract synchronously, thus completing the needle withdrawal operation and leaving the transmitter assembly 40 in place on the patient's body.

[0074] Specifically, in one embodiment, the needle retraction drive 55 is a spring.

[0075] Preferably, in one embodiment, the needle 52 includes a needle body 521 and a seal 522, the seal 522 being disposed between the needle body 521 and the sensor's sealing cap 424. The sealing tube assembly 54 includes a clutch tube 541 and a conversion sleeve 542, the clutch tube 541 being rotatably locked onto the transmitter assembly 40, and the clutch tube 541 abutting against the needle body 521 to press the seal 522 against the end face of the sensor's sealing cap 424. The conversion sleeve 542 is disposed corresponding to the needle cap 51 and can move under the action of the needle cap 51 to rotate and unlock the clutch tube 541, and to move the clutch tube 541.

[0076] Rotary locking refers to a mechanism where one component is fastened to another component by rotation. Rotating the component in the forward direction locks the two components together, while rotating it in the reverse direction unlocks them. Rotary locking can employ any desired structure, such as a threaded structure or a rotating platform structure. For example, in one embodiment, such as... Figure 6As shown, the clutch tube 541 and the sensor 42 are locked together by a rotating platform structure. The sensor 42 is provided with a platform 421, and the clutch tube 541 is provided with a locking platform. When the clutch tube 541 is rotated forward, the locking platform engages with the platform cavity 422 on the lower side of the platform 421. This locking mechanism, between the locking platform and the platform 421, prevents the clutch tube 541 and the sensor 42 from separating axially. When it is necessary to separate the clutch tube 541 and the sensor 42, the clutch tube 541 must first be rotated in the opposite direction to disengage the locking platform from the platform cavity 422. This removes the obstruction of the platform 421, allowing the clutch tube 541 and the sensor 42 to separate axially.

[0077] In one embodiment, the clutch tube 541 is used to press the needle 52. When the clutch tube 541 is rotated and locked onto the transmitter assembly 40, it presses the needle body 521, thereby pressing the seal 522 and ensuring a seal between the needle 52 and the sensor 42. When the clutch tube 541 is separated from the transmitter assembly 40, it loses its pressing effect on the needle 52. Furthermore, when the needle cap 51 is withdrawn, it unlocks by moving the conversion sleeve 542, which in turn rotates the clutch tube 541. After unlocking, the clutch tube 541 moves again to separate from the transmitter assembly 40.

[0078] Understandably, the clutch tube 541 is installed on the transmitter assembly 40 by rotation locking. This means that when the clutch tube 541 is separated from the transmitter assembly 40, the clutch tube 541 needs to be rotated first. This can better prevent the clutch tube 541 from detaching from the transmitter assembly 40 due to vibration or other unexpected situations, allowing the clutch tube 541 to be more securely installed on the transmitter assembly 40 and better ensuring the reliability of the clutch tube 541 in pressing the needle 52.

[0079] Specifically, in one embodiment, the seal 522 is a silicone seal.

[0080] Specifically, in one embodiment, the needle body 521 abuts against the top surface of the sensor 42 via the sealing member 522. One end of the implantation needle 53 is connected to the needle body 521, and the other end of the implantation needle 53 passes through the sensor 42 and exits from the bottom surface of the sensor 42. Here, the top surface and the bottom surface of the sensor 42 refer to two opposite surfaces of the sensor 42. For example, in one embodiment, such as... Figure 2 As shown in the direction angle, the top surface of the sensor 42 is the upper surface of the sensor 42, and the bottom surface of the sensor 42 is the lower surface of the sensor 42.

[0081] Specifically, in one embodiment, the connection structure between the needle cap 51 and the conversion sleeve 542 is as follows: the conversion sleeve 542 is provided with a bayonet 5421, which is locked onto the needle cap 51. Therefore, when the needle cap 51 moves, the needle cap 51 will synchronously drive the conversion sleeve 542 to move.

[0082] Preferably, in one embodiment, the sealing tube assembly 54 further includes a stop cap 543. The stop cap 543 is detachably mounted on the clutch tube 541 to restrict relative rotation between the needle body 521 and the clutch tube 541. The stop cap 543 is used to prevent rotation between the needle body 521 and the clutch tube 541 during assembly, thus preventing seal failure. That is, the stop cap 543 is detachably mounted on the clutch tube 541, and the stop cap 543 extends into the needle body 521, correspondingly blocking the needle body 521, thereby preventing relative rotation between the needle body 521 and the stop cap 543. It is understood that when the connection between the clutch tube 541 and the transmitter assembly 40 becomes loose to a certain extent, the clutch tube 541 will not be able to press the needle body 521 tightly, thereby causing the seal 522 to lose its sealing function, resulting in seal failure of the upper part of the sensor 42. By setting the stop cover 543, such situations can be better avoided, and the sealing effect can be better guaranteed.

[0083] In one embodiment, the conversion sleeve 542 is also used to disengage the stop cap 543 from the clutch tube 541. When the conversion sleeve 542 is pushed upward by the needle cap 51, it also disengages the stop cap 543 from the clutch tube 541.

[0084] Preferably, in one embodiment, the stop cap 543 is mounted on the top of the clutch tube 541. A limit block 5431 is provided on the inner side of the stop cap 543. Along the radial direction of the needle body 521 (e.g., as shown in the image) Figure 7(In the lateral direction of the indicated angle), the limiting block 5431 extends into the area where the needle body 521 is located to block and limit the needle body 521. That is, the limiting block 5431 extends radially into the needle body 521, thereby blocking the needle body 521 and limiting the relative rotation between the needle body 521 and the clutch tube 541. A lever 5432 is provided on the outer side of the stop cover 543. The lever 5432 is used to cooperate with the conversion sleeve 542 to separate the stop cover 543 from the clutch tube 541. Specifically, when the implantation tool is used for 100 and the needle is withdrawn, the conversion sleeve 542 will be blocked by the lever 5432 during movement. The conversion sleeve 542 will apply force to the lever 5432 to drive the stop cover 543 to disengage from the top of the clutch tube 541. When the stop cap 543 is disengaged, the clutch tube 541 and the needle body 521 lose their rotational limiting element, and the clutch tube 541 can then be disengaged from the transmitter assembly 40 by rotation.

[0085] Preferably, in one embodiment, the clutch tube 541 has helical rifling 5411, and the conversion sleeve 542 is provided with an insert block 5422 that inserts into the helical rifling 5411. When the conversion sleeve 542 moves, the insert block 5422 moves correspondingly within the helical rifling 5411, thereby driving the clutch tube 541 to rotate through the cooperation between the insert block 5422 and the helical rifling 5411, thus unlocking the clutch tube 541.

[0086] Specifically, in one embodiment, when the conversion sleeve 542 drives the clutch tube 541 to rotate from the locked position to the unlocked position, the protrusion provided on the clutch tube 541 abuts against the lower surface of the needle body 521. Thus, as the conversion sleeve 542 drives the clutch tube 541 to move upward, the clutch tube 541 simultaneously drives the needle body 521 to move upward, thereby realizing the retraction of the implanted needle 53.

[0087] Preferably, in one embodiment, the sensor 42 includes a sensor body 423 and a sensor sealing cover 424 disposed on the top of the sensor body 423, and the clutch tube 541 is screwed and locked onto the latch 4241 of the sensor sealing cover 424. That is, in this embodiment, the clutch tube 541 is specifically connected and installed with the latch 4241. Specifically, in one embodiment, the mounting platform 421 and the mounting platform cavity 422 are formed on the latch 4241.

[0088] Preferably, in one embodiment, the needle body 521 is housed within the clutch tube 541. That is, the needle body 521 is sleeved inside the clutch tube 541, thereby better ensuring the clamping effect of the clutch tube 541 on the needle body 521.

[0089] Preferably, in one embodiment, the implantation tool 100 further includes a cannula 60. The cannula 60 is rotatably locked onto the transmitter assembly 40, specifically, the cannula 60 is rotatably locked onto the bottom shell of the transmitter 41. The portion of the sensor body 423 extending out of the transmitter 41 and the portion of the implantation needle 53 protruding from the sensor 42 are both located within the cannula 60. That is, the cannula 60 is rotatably locked onto the lower part of the sensor 42, and the cannula 60 can seal and accommodate the exposed portions of the sensor 42 and the implantation needle 53. In other words, in this embodiment, the upper part of the sensor 42 is sealed by the cooperation between the clutch tube 541, the needle body 521, and the sealing member 522, while the lower part of the sensor 42 is sealed by the cannula 60.

[0090] Preferably, in one embodiment, the sleeve 60 is rotatably locked onto the transmitter lower cover 411 of the transmitter 41, and a sleeve seal 80 is provided between the sleeve 60 and the transmitter lower cover 411. This structure can further improve the sealing effect of the sleeve 60 on the lower part of the sensor 42. Specifically, in one embodiment, the sleeve seal 80 is a silicone seal.

[0091] Preferably, in one embodiment, the transmitter 41 includes a lower transmitter cover 411, an upper transmitter cover 412, and a circuit board 413. The upper transmitter cover 412 is fitted onto the lower transmitter cover 411. The circuit board 413 is disposed in the space enclosed by the upper transmitter cover 412 and the lower transmitter cover 411, and the circuit board 413 is connected to the sensor 42. More preferably, the circuit board 413 includes a first circuit board 4131 and a second circuit board 4132. The first circuit board 4131 is disposed on the upper transmitter cover 412, and the second circuit board 4132 is disposed on the lower transmitter cover 411. The first circuit board 4131 and the second circuit board 4132 are connected by conductive adhesive 414. Specifically, in one embodiment, the conductive adhesive 414 is integrally molded into the groove of the transmitter lower cover 411, and a cut is provided on the conductive adhesive 414. The sensor 42 is laterally inserted into the transmitter lower cover 411, and the sensor 42 is inserted into the cut of the conductive adhesive 414 to achieve connection with the conductive adhesive 414. After the sensor 42 and the transmitter lower cover 411 are assembled (e.g. Figure 8 , Figure 9 As shown), the entire assembly is then assembled into the first circuit board 4131 and the transmitter cover 412, thus connecting the sensor 42 to the first circuit board 4131. Then, it is cured by a UV curing lamp to form a complete transmitter assembly (as shown). Figure 10 (As shown).

[0092] Please refer to the following: Figure 2 , Figure 11 , Figure 12 , Figure 13 Preferably, in one embodiment, the ejector 20 includes an ejector body 21 and a latching portion 22 and a locking pin portion 23 disposed on the ejector body 21. The latching portion 22 latches onto an elastic cantilever 12 on the housing 10. The locking pin portion 23 and the ejector body 21 together form a locking needle cavity 24, and the locking pin portion 24 latches the needle cap 51 into the locking needle cavity 24. The elastic cantilever 12 refers to a component that can undergo elastic deformation under force and return to its original state when the force is reduced or eliminated.

[0093] Preferably, in one embodiment, the ejector 20 further includes a pushing part 25 disposed on the ejector body 21. The pushing part 25 is disposed corresponding to the drive button 30, and is used to push the drive button 30 to move relative to the housing 10, so that the drive button 30 presses and limits the elastic cantilever 12, so that the elastic cantilever 12 latches the latching part 22. That is, the pushing part 25 is used to push the drive button 30 to move, so that the drive button 30 moves to the desired position, and the moved drive button 30 will correspondingly press the elastic cantilever 12. The elastic cantilever 12, after being pressed by the drive button 30, will correspondingly block the latching part 22, thereby latching the ejector 20 onto the elastic cantilever 12, realizing the latching connection between the ejector 20 and the housing 10.

[0094] When the ejector 20 is installed into the housing 10, as Figure 11 As shown, before assembly, the drive button 30 is in a depressed state. When the pusher 20 is pushed in, the end face of the pusher 25 will press against the bottom surface of the drive button 30. At this time, the pusher 20 will push the drive button 30 until it reaches the stop end face 101 of the housing 10 before stopping its movement (e.g., Figure 12(As shown). When the ejector 20 stops advancing, it moves downward under the force of the drive spring until the latching part 22 contacts the elastic cantilever 12. Because the elastic cantilever 12's deformation space is blocked by the drive button 30, it cannot deform. The elastic cantilever 12 then blocks the latching part 22, thereby latching the ejector 20 onto the housing 10.

[0095] When using the implantation tool, simply press the drive button 30. At this time, the drive button 30 will give the elastic cantilever 12 room to deform, allowing the elastic cantilever 12 to retract smoothly and deform, so that the pusher 20 can detach from the elastic cantilever 12.

[0096] The implantation tool 100 provided in this embodiment can simplify the structure of the implantation tool, reduce the number of parts in the implantation tool, and enable the pusher 20 to lock and release freely. At the same time, it can simplify the assembly process. During the assembly process, pushing the pusher 20 can complete the installation and positioning of the drive button 30 and the snap-fit ​​installation between the pusher 20 and the housing 10, reducing the assembly difficulty and improving the assembly efficiency.

[0097] Preferably, in one embodiment, the drive button 30 includes a button body 31 and a button buckle 32 disposed at the bottom of the button body 31. The button buckle 32 is used to press and limit the elastic cantilever 12. The pushing part 25 is disposed corresponding to the button buckle 32 and is used to push the button buckle 32. That is, in this embodiment, the pushing part 25 is specifically used to push the button buckle 32, thereby driving the entire drive button 30 to move. At the same time, the drive button 30 also presses and limits the elastic cantilever 12 through the button buckle 32 disposed at the bottom, thereby locking the pusher 20.

[0098] Preferably, in one embodiment, the button buckle 32 is located on the inner side of the elastic cantilever 12, and the latching part 22 is located on the outer side of the elastic cantilever 12. The inner side of the elastic cantilever 12 refers to the side of the elastic cantilever 12 relatively closer to the central axis of the housing 10, and correspondingly, the outer side of the elastic cantilever 12 refers to the side of the elastic cantilever 12 relatively away from the central axis of the housing 10. In this embodiment, the button buckle 32 presses and limits the elastic cantilever 12 from the inner side, causing the elastic cantilever 12 to deform outward, thereby latching the latching part 22. When the drive button 30 is pressed, the elastic cantilever 12 will deform inward and return to its original shape due to its elasticity.

[0099] Preferably, in one embodiment, the elastic cantilever 12 includes a connecting arm 121 and a locking platform 122, the connecting arm 121 being connected to the housing 10. The locking platform 122 is disposed at the bottom of the connecting arm 121 to abut against and limit the latching portion 22. That is, in this embodiment, the elastic cantilever 12 specifically uses the locking platform 122 to limit the latching portion 22, thereby latching the ejector 20 onto the housing 10.

[0100] Preferably, in one embodiment, the inner surface of the latching part 22 (the surface near the central axis of the housing 10) is provided with a protruding mounting platform 221, and the mounting platform 122 is used to abut and limit the protruding mounting platform 221 to latch the latching part 22. This structure better ensures the reliability of the latching connection between the ejector 20 and the elastic cantilever 12, and better prevents the ejector 20 from accidentally slipping out.

[0101] More preferably, in one embodiment, the first surface 2211 of the protruding mounting platform 221 that abuts against the locking platform 122 and the second surface 1221 of the locking platform 122 that abuts against the protruding mounting platform 221 are both inclined surfaces, and the movement direction after the pusher 20 is disengaged ( Figure 13 (The angle shown is from top to bottom), and these two inclined surfaces are tilted away from the central axis of the housing 10. The arrangement of these two inclined surfaces allows the pusher 20 to disengage more smoothly from the elastic cantilever 12 after the drive button 30 is pressed.

[0102] Preferably, in one embodiment, a guide ramp 1222 is provided on the bottom of the card holder 122 near the button buckle 32. When the pusher 20 is pushed into the housing 10, the top surface of the pusher 25 contacts the guide ramp 1222. The guide ramp 1222 can better guide the elastic cantilever 12, causing the elastic cantilever 12 to deform outward, reducing the difficulty of pushing the pusher 20 in.

[0103] Preferably, in one embodiment, multiple (at least two) elastic cantilever arms 12 are provided, and all the elastic cantilever arms 12 are arranged in a ring within the housing 10, that is, all the elastic cantilever arms 12 are arranged in a ring within the housing 10. Each elastic cantilever arm 12 is provided with one button buckle 32 and one latching part 22. That is, each elastic cantilever arm 12 has one button buckle 32 on its inner side and one latching part 22 on its outer side, thereby allowing for a more balanced force distribution among the drive button 30, the pusher 20, and the elastic cantilever arm 12. For example, in one embodiment, two elastic cantilever arms 12 may be provided, and the two elastic cantilever arms 12 may be arranged opposite each other with the central axis of the housing 10 as the center.

[0104] Please refer to the following: Figure 3 , Figure 14 , Figure 15 , Figure 16 , Figure 17 Preferably, in one embodiment, the implantation tool 100 further includes a limiting block 70. The limiting block 70 is snapped onto the housing 10, and the limiting block 70 abuts against and compresses the locking pin portion 23, thereby locking the needle cap 51 into the locking needle cavity 24. After the ejector 20 disengages from the housing 10, the locking pin portion 23 can separate from the limiting block 70, allowing the needle retraction drive 55 to disengage the needle cap 51 from the locking needle cavity 24.

[0105] When the ejector 20 disengages from the housing 10, the drive spring inside the housing 10 moves the ejector 20. Since the limiting block 70 is engaged with the housing 10, it remains stationary, causing relative displacement between the ejector 20 and the limiting block 70. Once the ejector 20 reaches a certain position, the needle-clamping part 23 separates from the limiting block 70. With the reduction of the pushing force from the limiting block 70 on the needle-clamping part 23, the clamping force on the needle cap 51 from the needle-clamping part 23 decreases. Consequently, the needle retraction drive 55 provides driving force to move the needle cap 51 in the opposite direction to the implantation needle 53, thus completing the retraction of the implantation needle 53.

[0106] The needle retraction drive 55 can be an elastic drive, which is a component that can undergo elastic deformation when subjected to force, and can return to its original state after the force is reduced or removed. In one embodiment, the needle retraction drive 55 can be a spring, and the needle retraction drive 55 can be disposed between the needle cap 51 and the ejector body 21.

[0107] Understandably, when the implantation tool is not in use, the limiting block 70 pushes the locking pin part 23 to make the clamping force of the locking pin part 23 pressing the needle cap 51 greater than the elastic force of the needle withdrawal drive 55, thereby ensuring that when not in use, the locking pin part 23 can lock the needle cap 51 in the locking needle cavity 24, ensuring the normal use of the implantation tool.

[0108] Preferably, in one embodiment, the housing 10 is provided with a snap-fit ​​arm 13, and the limiting block 70 is provided with a snap-fit ​​groove 71. The limiting block 70 is snapped onto the snap-fit ​​arm 13 through the snap-fit ​​groove 71. This structure can better ensure the reliability of the snap-fit ​​connection between the limiting block 70 and the housing 10, and makes it more convenient to assemble the limiting block 70 into the housing 10.

[0109] Preferably, in one embodiment, a guide slope 72 is provided on the top of the limiting block 70 near the side of the latching arm 13. When the limiting block 70 is assembled into the housing 10, the guide slope 72 contacts and guides the latching arm 13, thereby allowing the latching arm 13 to engage more smoothly in the latching groove 71, further reducing the difficulty of assembling the limiting block 70 into the housing 10.

[0110] Preferably, in one embodiment, the limiting block 70 includes a limiting block body 73 and an abutment portion 74. The slot 71 is formed on the limiting block body 73, and the abutment portion 74 is disposed on the inner surface of the limiting block body 73 (the surface near the central axis of the housing 10), and the abutment portion 74 is used to abut against the locking pin portion 23.

[0111] Preferably, in one embodiment, the bottom surface of the limiting block 70 is provided with a detection boss 75. It is understood that, since the limiting block 70 is an internal component during assembly, its position cannot be directly confirmed after assembly, and it is not possible to directly determine whether the limiting block 70 is properly assembled. However, by providing the detection boss 75, process inspection can be performed to ensure that the limiting block 70 is properly assembled.

[0112] Preferably, in one embodiment, a limiting boss 76 is provided on the side of the limiting block 70. The limiting boss 76 can guide and position the object by interacting with the groove 201 on the ejector 20. Figure 16 and Figure 17 As shown, when the ejector 20 is disengaged and begins to slide, the limiting boss 76 can guide the ejector 20. At the same time, when the ejector 20 slides into place, the limiting boss 76 can also block and position the ejector 20, ensuring that the ejector 20 only slides to the required position.

[0113] Preferably, in one embodiment, the limiting block 70 has a process groove 77. The process groove 77 extends along the length direction of the limiting block 70 and penetrates through the limiting block 70. Specifically, the process groove 77 penetrates the limiting block 70 along its thickness direction. By providing the process groove 77, the molding requirements of the limiting block 70 can be accommodated, and deformation of the part due to excessive glue thickness can be avoided during molding of the limiting block 70.

[0114] Preferably, in one embodiment, multiple (at least two) limiting blocks 70 are provided, and all the limiting blocks 70 are arranged in a ring shape, that is, all the limiting blocks 70 are arranged in a ring shape in the receiving space 12. Each limiting block 70 abuts against one of the locking pin parts 23, that is, the pusher 20 is provided with multiple locking pin parts 23, and each locking pin part 23 abuts against one limiting block 70 on its outer side, thereby allowing the force on each side of the needle cap 51 to be more balanced, and more stably locking the needle cap 51 into the locking needle cavity 24. Specifically, in one embodiment, two limiting blocks 70 are provided, and the two limiting blocks 70 are arranged opposite each other with the central axis of the housing 10 as the center.

[0115] Preferably, in one embodiment, the inner surface of the locking pin portion 23 (the side surface near the central axis of the housing 10) is provided with a first protrusion 231, and the outer surface of the needle cap 51 (the side surface away from the central axis of the housing 10) is provided with a second protrusion 511, with the first protrusion 231 abutting against the second protrusion 511. This structure can better ensure that the locking pin portion 23 locks the needle cap 51.

[0116] The implantation tool 100 with this structure simplifies the assembly of the implantation tool. During assembly, all parts (such as the limiting block 70, transmitter, sensor, etc.) set on the pusher 20 can be assembled before entering the housing 10, solving the problem of assembly operation limitations. Finally, the assembled components are put into the housing 10, and the assembly personnel complete the assembly when they hear the sound of the buckles locking.

[0117] Please refer to the following: Figure 2 , Figure 3 , Figure 18 , Figure 19Preferably, in one embodiment, the implantation tool 100 further includes a base 90, the base 90 including a base body 91 and a support rod 92 connected to the base body 91. The base body 91 is detachably connected to the housing 10, and the support rod 92 extends into the housing 10 and supports and limits the drive button 30. The sleeve 60 is mounted on the base body 91.

[0118] In other words, when the base 90 is installed on the housing 10, the support rod 92 extends into the housing 10 and abuts against the drive button 30, thereby providing a downward resistance to the drive button 30 to limit the drive button 30. When the drive button 30 is pressed down, it will be resisted by the support rod 92, thus preventing the drive button 30 from being accidentally pressed.

[0119] It should be noted that the support rod 92 can directly abut against the drive button 30, or the support rod 92 can indirectly abut against the drive button 30 (i.e., other structures can be provided between the support rod 92 and the drive button 30, and the support rod 92 does not directly abut against the drive button 30). In other words, as long as the base 90 is installed on the housing 10, the support rod 92 can apply resistance to the drive button 30 to prevent accidental activation of the drive button 30.

[0120] In this embodiment, the support rod 92 enables the base 90 to have a button anti-accidental touch function, giving the base 90 more functionality. It also eliminates the need for an additional button anti-accidental touch structure in the implantation tool 100. When removing the base 90, the drive button 30 can be unlocked simultaneously, making it more convenient and simpler for the user to operate the implantation tool 100, thus improving the user experience.

[0121] Preferably, in one embodiment, the base body 91 includes a bottom wall 911 and a side wall 912 surrounding the bottom wall 911. A support rod fixing seat 9111 is provided on the bottom wall 911, and the support rod 92 is fixedly installed at the support rod fixing seat 9111. This structure better ensures the reliability of the connection between the support rod 92 and the base body 91. The side wall 912 is provided with a detachable structure for detachable connection with the housing 10. The detachable structure can be any structure that matches the housing 10, such as a threaded structure, a hanging platform structure, a snap-fit ​​structure, etc., as long as it enables a detachable connection between the base 90 and the housing 10.

[0122] Preferably, in one embodiment, the implantation tool 100 further includes a strut conversion member 93, which is slidably disposed in the receiving space 11. That is, the strut conversion member 93 is disposed in the receiving space 11 and can slide within the receiving space 11 when not restricted. The strut 92 abuts against the strut conversion member 93 for support, and the strut conversion member 93 abuts against the drive button 30 for support. In other words, in this embodiment, the strut 92 indirectly abuts against the drive button 30, thereby supporting and limiting the drive button 30 and restricting its downward pressure. Specifically, the strut 92 abuts against the strut conversion member 93 to support and limit the strut conversion member 93, while the strut conversion member 93 also abuts against the drive button 30, thereby supporting and limiting the drive button 30. When the base 90 is removed from the housing 10, the support rod 92 separates from the support rod conversion component 93, allowing the support rod conversion component 93 to slide freely within the receiving space 11. At this point, the drive button 30 can be pressed normally. Specifically, the support rod conversion component 93 can be installed on the housing 10 or the pusher component 20.

[0123] Preferably, in one embodiment, the strut conversion member 93 is slidably disposed on the pusher member 20. By disposing the strut conversion member 93 on the pusher member 20, the position of the strut conversion member 93 can be directly opposite the drive button 30, and the strut conversion member 93 is located below the drive button 30. This simplifies the structure of the strut 92 and the strut conversion member 93, making the overall structure simpler, and also allows the strut conversion member 93 to more reliably support and limit the drive button 30.

[0124] Preferably, in one embodiment, the ejector 20 is provided with a limiting step 26. The limiting step 26 corresponds to the strut converter 93 and is used to limit the slidable position of the strut converter 93 after the strut 92 is separated from the strut converter 93. Specifically, after the base 90 is disassembled, the strut 92 and strut converter 93 separate, and the strut converter 93 can slide downwards relative to the ejector 20. However, the downward sliding distance of the strut converter 93 is limited by the limiting step 26. That is, when the strut converter 93 slides a certain distance, it will be blocked by the limiting step 26 and thus cannot continue to slide downwards. This structure can better prevent the strut converter 93 from detaching from the ejector 20.

[0125] Preferably, in one embodiment, the strut conversion component 93 includes a conversion component body 931, a first rod 932, and a second rod 933. The first rod 932 is disposed at one end of the conversion component body 931 and abuts against the strut 92. The second rod 933 is disposed at the other end of the conversion component body 931 and abuts against the drive button 30. The limiting step 26 is provided corresponding to the conversion component body 931, that is, the limiting step 26 limits the position of the strut conversion component 93 by restricting the position of the conversion component body 931.

[0126] Preferably, in one embodiment, a sealing ring 94 is provided on the bottom wall 911, and the sealing ring 94 abuts against the housing 10. The sealing ring 94 better ensures the sealing performance between the base 90 and the housing 10, and better protects the components inside the housing 10.

[0127] Preferably, in one embodiment, a sealing ring mounting seat 9112 is provided on the bottom wall 911, and a sealing ring mounting cavity is provided in the sealing ring mounting seat 9112, in which the sealing ring 94 is disposed. This structure can better ensure the reliability of the installation of the sealing ring 94, thereby further ensuring the sealing effect.

[0128] Specifically, in one embodiment, the sleeve 60 is connected to the transmitter assembly 40 via a mounting plate or thread, and the base 90 is connected to the housing 10 via a mounting plate or thread. The unlocking directions of the base 90 and housing 10, and the sleeve 60 and transmitter assembly 40, are the same. For example, when the base 90 and housing 10 have a left-hand thread, the sleeve 60 and transmitter assembly 40 also have a left-hand thread; when the base 90 and housing 10 have a right-hand thread, the sleeve 60 and transmitter assembly 40 also have a right-hand thread. Because the base 90 is connected to the sleeve 60, when the base 90 is screwed off, the base 90 will simultaneously rotate the sleeve 60. This allows the sleeve 60 to be removed from the transmitter assembly 40 at the same time as the base 90 is removed from the housing 10.

[0129] The implantation tool 100 prevents accidental touches of the drive button 30 through the base 90, and has the characteristics of simple overall structure, ingenious application and low failure rate.

[0130] The above description is merely an embodiment of the present invention. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements all fall within the protection scope of the present invention.

Claims

1. An implantation tool, characterized in that, Includes housing, ejector, drive button, transmitter assembly, and implantation needle assembly; The ejector is snapped into the housing; The drive button is mounted on the housing and is used to drive the ejector to disengage from the housing; The transmitter assembly includes a transmitter and a sensor, wherein the transmitter is detachably mounted to the launcher and the sensor is mounted on the transmitter; The implantation needle assembly includes a needle cap, a needle, an implantation needle, a sealing tube assembly, and a needle withdrawal drive. The needle cap is fastened in the ejector component; The needle abuts against the end face of the sealing cap of the sensor; One end of the implantation needle is connected to the needle tip, and the other end passes through the sensor and exits from the sensor; The sealing tube assembly is detachably installed on the transmitter assembly and abuts against the needle to press the needle against the end face of the sensor's sealing cover; The needle retraction drive is connected to the needle cap and is used to drive the needle cap to move relative to the ejector during needle retraction, so that the needle cap drives the sealing tube assembly and the needle to move, thereby separating the sealing tube assembly, the needle and the transmitter assembly. The needle includes a needle body and a sealing element, wherein the sealing element is disposed between the needle body and the sealing cover of the sensor; The sealing pipe assembly includes a clutch pipe and a conversion sleeve; The clutch tube is rotated and locked onto the transmitter assembly, and the clutch tube abuts against the needle body to press the seal against the end face of the sensor's sealing cover; The conversion sleeve is configured corresponding to the needle cap and can move under the drive of the needle cap to rotate and unlock the clutch tube, and to move the clutch tube.

2. The implantation tool according to claim 1, characterized in that, The sealing tube assembly also includes a stop cap; The stop cap is detachably mounted on the clutch tube to restrict rotation between the needle body and the clutch tube; The conversion sleeve is also used to drive the stop cover to separate from the clutch tube.

3. The implantation tool according to claim 1, characterized in that, The clutch tube is provided with helical rifling, and the conversion sleeve is provided with a plug that can be inserted into the helical rifling.

4. The implantation tool according to claim 1, characterized in that, The sensor includes a sensor body and a sealing cover of the sensor disposed on the top of the sensor body; The clutch tube is rotated and locked onto the snap fastener of the sensor's sealing cover.

5. The implantation tool according to any one of claims 1 to 4, characterized in that, The ejector includes an ejector body and a latching part and a locking pin part disposed on the ejector body; The latching part is latched onto the elastic cantilever on the housing; The locking pin part and the ejector body together form a locking needle cavity, and the locking pin part snaps the needle cap into the locking needle cavity.

6. The implantation tool according to claim 5, characterized in that, The ejector also includes a pushing part disposed on the ejector body; The pushing part is provided corresponding to the driving button and is used to push the driving button to move relative to the housing so that the driving button squeezes and limits the elastic cantilever so that the elastic cantilever latches the buckling part.

7. The implantation tool according to claim 5, characterized in that, It also includes limit blocks; The limiting block is snapped onto the housing, and the limiting block abuts against the locking pin portion and squeezes and limits the locking pin portion so that the locking pin portion snaps the needle cap into the locking needle cavity; After the ejector is disengaged from the housing, the locking pin portion can separate from the limiting block, so that the needle retraction drive can drive the needle cap to disengage from the locking pin cavity.

8. The implantation tool according to any one of claims 1, 2, 3, 4, 6, and 7, characterized in that, It also includes a sleeve, which is rotatably locked onto the bottom shell of the transmitter; The portion of the sensor extending from the transmitter and the portion of the implanted needle protruding from the sensor are both located within the cannula.

9. The implantation tool according to claim 8, characterized in that, It also includes a base support, which includes a base support body and a support rod connected to the base support body; The base body is detachably connected to the housing; The support rod extends into the housing and supports and limits the drive button; The sleeve is installed on the base body.

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