CN117562537A - Implantation tool - Google Patents

Abstract

The invention provides an implantation tool, which comprises a shell, a pushing and shooting piece, a driving key, an emitter assembly and an implantation needle assembly, wherein the pushing and shooting piece is arranged on the shell; the pushing and shooting piece is buckled and installed in the shell; the driving key is used for driving the ejector to release; the emitter assembly comprises an emitter and a sensor, wherein the emitter is detachably arranged on the ejector, and the sensor is arranged on the emitter; the implantation needle assembly comprises a needle head cap, a needle head, an implantation needle, a sealing tube group and a needle withdrawing driving piece; the needle head cap is buckled and installed in the injection member; the needle head is abutted with the end face of the sensor; one end of the implantation needle is connected with the needle head, and the other end of the implantation needle penetrates into the sensor and penetrates out of the sensor; the sealing tube group is detachably arranged on the emitter component and is abutted with the needle head so as to press the needle head on the end face of the sensor; the needle withdrawing driving piece is connected with the needle head cap and is used for driving the needle head cap to move when withdrawing the needle so as to separate the sealing tube group, the needle head and the emitter component. Compared with the prior art, the implantation tool can improve the sealing protection effect on the sensor.

Description

Implantation tool

Technical Field

The invention relates to the technical field of medical auxiliary instruments, in particular to an implantation tool.

Background

The dynamic blood glucose monitoring system CGM is a system for monitoring the blood glucose index of a human body, and the dynamic blood glucose monitoring system CGM in the prior art is characterized in that a blood glucose sensor is implanted subcutaneously, enzyme on the sensor reacts with subcutaneous tissue fluid to detect the blood glucose value, and the blood glucose value is sent to a terminal by matching with a transmitter, so that the continuous blood glucose value can be acquired. For the dynamic blood glucose monitoring system CGM, the implantation tool for implanting the blood glucose sensor is one of the indispensable devices, and the blood glucose sensor and the transmitter can be simply and quickly implanted on a human body through the implantation tool.

The implantation tool in the prior art generally comprises a shell, a driving key, a pushing part, a transmitter, a sensor, an implantation needle and other parts, wherein the pushing part is buckled on the shell, the transmitter, the sensor and the implantation needle are arranged on the pushing part, and the driving key is used for unlocking the pushing part. When the driving key is pressed, the driving key can enable the pushing and shooting piece to release from the shell, so that the pushing and shooting piece drives the emitter, the sensor and the implantation needle to synchronously move. After the pushing and shooting piece moves to a certain distance, the implantation needle is inserted into the body of the patient, so that the sensor is contacted with the blood of the patient, and the blood sugar value is detected.

However, the sensors in prior art implantation tools are susceptible to contamination by contaminants. In order to better avoid the sensor from being polluted, a sealing mechanism is arranged in the implantation tool to seal the sensor, so that the sensor is a better protection means.

After the implantation tool is used, the emitter and the sensor need to be placed on the body of the patient, and other components in the implantation tool need to be separated from the emitter and the sensor.

Therefore, how to provide an implantation tool, which can perform good sealing protection on the sensor when not in use, and the sealing mechanism for performing sealing protection on the sensor can be smoothly separated from the sensor after use is a problem to be solved in the art.

Disclosure of Invention

The technical problem that a sensor is easy to be polluted in an implantation tool in the prior art is solved. The invention provides an implantation tool, which can well realize the sealing protection of a sensor, better avoid the sensor from being polluted, and can smoothly separate a mechanism for sealing protection of the sensor from the sensor after the implantation tool is used, so that the normal use of the implantation tool is not influenced.

An implantation tool comprising a housing, a pusher, a drive key, an emitter assembly, and an implantation needle assembly;

The pushing piece is buckled and installed in the shell;

the driving key is arranged on the shell and used for driving the ejector to release from the shell;

the emitter assembly comprises an emitter and a sensor, wherein the emitter is detachably arranged on the ejector, and the sensor is arranged on the emitter;

the implantation needle assembly comprises a needle head cap, a needle head, an implantation needle, a sealing tube group and a needle withdrawing driving piece;

the needle head cap is buckled and installed in the injection pushing piece;

the needle head is abutted with the end face of the sealing cover of the sensor;

one end of the implantation needle is connected with the needle head, and the other end of the implantation needle penetrates into the sensor and penetrates out of the sensor;

the sealing tube group is detachably arranged on the emitter assembly and is in abutting connection with the needle head so as to press the needle head on the end face of the sealing cover of the sensor;

the needle withdrawing driving piece is connected with the needle head cap and is used for driving the needle head cap to move relative to the injection pushing piece when withdrawing the needle, so that the needle head cap drives the sealing tube group and the needle head to move, and the sealing tube group and the needle head are separated from the emitter component.

Preferably, the needle comprises a needle body and a sealing element, and the sealing element is arranged between the needle body and a sealing cover of the sensor;

The sealing tube group comprises a clutch tube and a conversion sleeve;

the clutch tube is rotationally locked on the emitter assembly and is abutted with the needle head body so as to press the sealing piece on the end face of the sealing cover of the sensor;

the switching sleeve is arranged corresponding to the needle head cap and can move under the drive of the needle head cap so as to drive the clutch tube to rotate and unlock and drive the clutch tube to move.

Preferably, the sealed tube group further comprises a stop cap;

the stop cover is detachably arranged on the clutch tube and used for limiting the rotation between the needle head body and the clutch tube;

the switching sleeve is also used for driving the stop cover to be separated from the clutch tube.

Preferably, the clutch tube is provided with a spiral rifling, and the conversion sleeve is provided with an insert block inserted into the spiral rifling.

Preferably, the sensor comprises a sensor body and a sealing cover of the sensor arranged on the top of the sensor body;

the clutch tube is rotationally locked on the snap fastener of the sealing cover of the sensor.

Preferably, the injection member comprises an injection member body, a buckling part and a needle clamping part, wherein the buckling part and the needle clamping part are arranged on the injection member body;

The clamping part is clamped on the elastic cantilever on the shell;

the needle clamping part and the injection part body jointly enclose a needle locking cavity, and the needle clamping part clamps the needle head cap in the needle locking cavity.

Preferably, the pushing member further comprises a pushing portion disposed on the pushing member body;

the pushing part is arranged corresponding to the driving key and is used for pushing the driving key to move relative to the shell, so that the driving key extrudes and limits the elastic cantilever, and the elastic cantilever is used for buckling the buckling part.

Preferably, the device further comprises a limiting block;

the limiting block is buckled on the shell, is abutted with the needle clamping part and extrudes and limits the needle clamping part, so that the needle clamping part can buckle the needle head cap in the needle locking cavity;

after the ejector is tripped from the shell, the needle clamping part can be separated from the limiting block, so that the needle withdrawing driving part drives the needle head cap to be separated from the needle locking cavity.

Preferably, the device further comprises a sleeve, wherein the sleeve is rotationally locked on a bottom shell of the emitter;

the portion of the sensor extending beyond the emitter and the portion of the implant needle extending beyond the sensor are both located in the cannula.

Preferably, the shoe further comprises a shoe, wherein the shoe comprises a shoe body and a supporting rod connected with the shoe body;

the collet body is detachably connected with the shell;

the supporting rod stretches into the shell and supports and limits the driving key;

the sleeve is arranged on the collet body.

Compared with the prior art, the implantation tool provided by the invention comprises a shell, a pushing and shooting piece, a driving key, an emitter assembly and an implantation needle assembly; the pushing piece is buckled and installed in the shell; the driving key is arranged on the shell and used for driving the ejector to release from the shell; the emitter assembly comprises an emitter and a sensor, wherein the emitter is detachably arranged on the ejector, and the sensor is arranged on the emitter; the implantation needle assembly comprises a needle head cap, a needle head, an implantation needle, a sealing tube group and a needle withdrawing driving piece; the needle head cap is buckled and installed in the injection pushing piece; the needle head is abutted with the end face of the sealing cover of the sensor; one end of the implantation needle is connected with the needle head, and the other end of the implantation needle penetrates into the sensor and penetrates out of the sensor; the sealing tube group is detachably arranged on the emitter assembly and is in abutting connection with the needle head so as to press the needle head on the end face of the sealing cover of the sensor; the needle withdrawing driving piece is connected with the needle head cap and is used for driving the needle head cap to move relative to the injection pushing piece when withdrawing the needle, so that the needle head cap drives the sealing tube group and the needle head to move, and the sealing tube group and the needle head are separated from the emitter component. Be provided with in the implantation instrument sealed nest of tubes, through sealed nest of tubes butt the syringe needle, thereby will the syringe needle compress tightly in the terminal surface of the sealed lid of sensor, so realize to the effective seal of sensor, overall structure is firm, can effectually ensure to the sealed protection effect of sensor. And when the needle is withdrawn from the implantation tool, the sealing tube set can be separated from the emitter assembly under the drive of the needle head cap, and the emitter assembly can not be left on the sealing tube set, so that the normal use of the implantation tool can not be influenced. Meanwhile, in the needle withdrawing process, the needle head cap drives the sealing tube group to separate the sealing mechanism, so that the whole structure is less, and the whole structure is simpler and more reliable.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a top view of an implant tool according to one embodiment;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic view of the implantation tool of FIG. 1 after use;

FIG. 5 is a schematic cross-sectional view of a portion of the implantation tool of FIG. 1 (with the clutch tube and the snap fastener in a locked state);

FIG. 6 is a schematic view of an exploded view of a portion of the components of the structure of FIG. 5;

FIG. 7 is a schematic cross-sectional view of a portion of the implantation tool of FIG. 1;

FIG. 8 is an exploded view of the structure of FIG. 7;

FIG. 9 is an exploded view of the structure of FIG. 7 at an alternative angle;

FIG. 10 is a schematic perspective view of the structure of FIG. 7;

FIG. 11 is a schematic cross-sectional view of the injection tool of FIG. 1 prior to insertion of the injector member into the housing;

FIG. 12 is a schematic cross-sectional view of the injection device of the implantation tool of FIG. 1 shown in the installed state of the housing;

FIG. 13 is a schematic cross-sectional view of the injection tool of FIG. 1 after the injection member has been installed in the housing;

FIG. 14 is a schematic cross-sectional view of the implant tool of FIG. 1 illustrating the abutment of the stopper and the pin portion;

FIG. 15 is a schematic cross-sectional view of the implant tool of FIG. 1 illustrating the stop block separated from the pin portion;

FIG. 16 is a schematic view of a cross-sectional structure of another angle of the insertion tool of FIG. 1 when the stopper is abutted against the needle-blocking portion;

FIG. 17 is a schematic cross-sectional view of another angle of the insertion tool of FIG. 1 with the stopper separated from the needle portion;

FIG. 18 is a schematic view of a portion of the components of the implantation tool of FIG. 1;

fig. 19 is a partial enlarged view of the region C shown in fig. 18.

Detailed Description

In order to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It is noted that when an element is referred to as being "fixed," "mounted," or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is "connected" or "connected" to another element, it can be directly connected or indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" is two or more, unless explicitly defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the scope of the present disclosure, since any structural modifications, proportional changes, or dimensional adjustments made by those skilled in the art should not be made in the present disclosure without affecting the efficacy or achievement of the present disclosure.

The invention provides an implantation tool, which comprises a shell, a pushing and shooting piece, a driving key, an emitter assembly and an implantation needle assembly, wherein the pushing and shooting piece is arranged on the shell; the pushing piece is buckled and installed in the shell; the driving key is arranged on the shell and used for driving the ejector to release from the shell; the emitter assembly comprises an emitter and a sensor, wherein the emitter is detachably arranged on the ejector, and the sensor is arranged on the emitter; the implantation needle assembly comprises a needle head cap, a needle head, an implantation needle, a sealing tube group and a needle withdrawing driving piece; the needle head cap is buckled and installed in the injection pushing piece; the needle head is abutted with the end face of the sensor; one end of the implantation needle is connected with the needle head, and the other end of the implantation needle penetrates into the sensor and penetrates out of the sensor; the sealing tube group is detachably arranged on the emitter assembly and is in abutting connection with the needle head so as to press the needle head on the end face of the sensor; the needle withdrawing driving piece is connected with the needle head cap and is used for driving the needle head cap to move relative to the injection pushing piece when withdrawing the needle, so that the needle head cap drives the sealing tube group and the needle head to move, and the sealing tube group and the needle head are separated from the emitter component. Be provided with in the implantation instrument sealed nest of tubes, through sealed nest of tubes butt the syringe needle, thereby will the syringe needle compress tightly in the terminal surface of the sealed lid of sensor, so realize to the effective seal of sensor, overall structure is firm, can effectually ensure to the sealed protection effect of sensor. And when the needle is withdrawn from the implantation tool, the sealing tube set can be separated from the emitter assembly under the drive of the needle head cap, and the emitter assembly can not be left on the sealing tube set, so that the normal use of the implantation tool can not be influenced. Meanwhile, in the needle withdrawing process, the needle head cap drives the sealing tube group to separate the sealing mechanism, so that the whole structure is less, and the whole structure is simpler and more reliable.

Please refer to fig. 1 to 10 in combination. The present embodiment provides an implantation tool 100 comprising a housing 10, a pusher 20, a drive key 30, a launcher assembly 40, and an implantation needle assembly 50. The housing 10 has an accommodation space 11 with one end open. The ejector 20 is snap-fitted into the housing 10. It should be noted that, the "buckle" in this embodiment refers to that one component is connected to another component through a corresponding buckle structure, and the two components can be separated from each other in a corresponding state. The driving key 30 is disposed on the housing 10, and the driving key 30 is used for driving the ejector 20 to release from the housing 10. That is, the state of the ejector 20 is changed by the driving key 30, and the ejector 20 can be changed from the "locked" state to the "unlocked" state by the driving key 30, so that the ejector 20 is separated from the housing 10.

The emitter assembly 40 includes an emitter 41 and a sensor 42, the emitter 41 is detachably mounted on the injector 20, and the sensor 42 is mounted on the emitter 41. The specific structure of the detachable emitter 41 mounted on the ejector 20 may be any desired structure, such as a snap connection, a threaded connection, etc., only when the ejector 20 is in a snap state, the emitter 41 may be stably fixed with the ejector 20, so that the ejector 20 can correspondingly drive the emitter 41 to move after being tripped; meanwhile, when the ejector 20 moves in place, the ejector 41 can be separated from the ejector 20.

The implant needle assembly 50 includes a needle cap 51, a needle 52, an implant needle 53, a sealed tube set 54, and a withdrawal drive 55. The needle cap 51 is snap-fitted into the injector 20, and the needle 52 abuts against an end face of the sealing cap 424 of the sensor. The implantation needle 53 has one end connected to the needle 52 and the other end penetrating the sensor 42 and exiting the sensor 42. The seal tube set 54 is removably mounted to the emitter assembly 40 and abuts the needle 52 to compress the needle 52 against the end face of the seal cap 424 of the sensor. The needle withdrawing driving member 55 is connected to the needle cap 51, and is configured to drive the needle cap 51 to move relative to the injector 20 when withdrawing the needle, so that the needle cap 51 drives the sealing tube set 54 and the needle 52 to move, and separate the sealing tube set 54 and the needle 52 from the injector assembly 40. The retracting refers to a process of driving the implantation needle 53 to retract after the implantation tool 100 is used and the implantation needle 53 is inserted into the patient.

It will be appreciated that in this embodiment, the sealing tube set 54 is provided to compress the needle 52, so that the needle 52 contacts the sensor 42 more tightly, thereby better ensuring the sealing effect on the sensor 42. And the sealing tube set 54 is detachably connected with the emitter assembly 40, and the sealing tube set 54 can be driven to be separated from the emitter assembly 40 by the needle cap 51 when the needle is withdrawn, so that the sealing tube set 54 can be ensured not to be left on the emitter assembly 40, and normal use of the implantation tool 100 can not be affected.

In use, the implantation tool 100 is released from the housing 10 by pressing the driving button 30, and then the ejector 20 is moved by the driving spring. When the injector 20 moves to a certain distance, the implantation needle 53 pierces the patient, the emitter 41 is attached to the skin of the patient, and the body of the sensor 42 correspondingly contacts the blood of the patient, so as to realize the detection of the blood glucose level. Meanwhile, the needle withdrawing driving member 55 provides driving force to drive the needle cap 51 to withdraw, and the needle cap 51 synchronously drives the sealing tube set 54 and the needle 52 to move in the moving process of the needle cap 51, so that the sealing tube set 54 is separated from the emitter assembly 40, and the needle 52 drives the implantation needle 53 to synchronously withdraw, thereby completing the needle withdrawing operation and leaving the emitter assembly 40 on the patient.

Specifically, in one embodiment, the needle retraction drive 55 employs a spring.

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 seal cap 424 of the sensor. The sealing tube set 54 includes a clutch tube 541 and a switching sleeve 542, the clutch tube 541 is rotationally locked to the emitter assembly 40, and the clutch tube 541 abuts against the needle body 521 to press the sealing member 522 against the end face of the sealing cap 424 of the sensor. The switching sleeve 542 is disposed corresponding to the needle cap 51, and can be driven by the needle cap 51 to move, so as to drive the clutch tube 541 to rotate and unlock, and drive the clutch tube 541 to move.

Wherein rotational locking means that one part is fastened to the other part by means of rotation, so that the part can be locked to the other part by rotating the part in the forward direction, and the part can be unlocked from the other part by rotating the part in the reverse direction. The rotational locking may take any desired configuration, such as a threaded configuration, a swivel mount configuration, etc. For example, in one embodiment, as shown in fig. 6, a rotary hanging table structure is adopted between the clutch tube 541 and the sensor 42 to achieve rotary locking, a hanging table 421 is provided on the sensor 42, a clamping table is provided on the clutch tube 541, and when the clutch tube 541 rotates in a forward direction, the clamping table is correspondingly clamped into a hanging table cavity 422 at the lower side of the hanging table 421, so that the clutch tube 541 and the sensor 42 cannot be separated along an axial direction by limiting between the clamping table and the hanging table 421. When the clutch tube 541 needs to be separated from the sensor 42, the clutch tube 541 needs to be rotated reversely to disengage the clamping table from the table chamber 422, so that the clamping table loses the blocking of the table 421, and the clutch tube 541 and the sensor 42 can be separated in the axial direction.

That is, in one embodiment, the clutch tube 541 is used to compress the needle 52, and when the clutch tube 541 is rotationally locked to the emitter assembly 40, the clutch tube 541 correspondingly compresses the needle body 521, so that the seal 522 is compressed by the needle body 521, thereby ensuring a sealing effect between the needle 52 and the sensor 42. And when the clutch tube 541 is separated from the emitter assembly 40, the compression effect on the needle 52 is lost. And, when the needle cap 51 withdraws the needle, the switching sleeve 542 is driven to move, the clutch tube 541 is driven to rotate by the switching sleeve 542 to unlock, and after unlocking, the clutch tube 541 is driven to move and separate from the emitter assembly 40.

It can be appreciated that the clutch tube 541 is mounted on the emitter assembly 40 in a rotation locking manner, so that when the clutch tube 541 is separated from the emitter assembly 40, the clutch tube 541 needs to be rotated first, so that the clutch tube 541 can be better prevented from being separated from the emitter assembly 40 due to unexpected situations such as vibration, etc., and the clutch tube 541 can be more firmly mounted on the emitter assembly 40, so that the reliability of the compression of the needle 52 by the clutch tube 541 is better ensured.

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

Specifically, in one embodiment, the needle body 521 abuts the top surface of the sensor 42 via the seal 522. One end of the implantation needle 53 is connected to the needle body 521, and the other end of the implantation needle 53 penetrates the sensor 42 and protrudes from the bottom surface of the sensor 42. Wherein the top surface of the sensor 42 and the bottom surface of the sensor 42 refer to two opposite surfaces of the sensor 42. For example, in one embodiment, 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, at the directional angle shown in fig. 2.

Specifically, in one embodiment, the connection structure between the needle cap 51 and the transition sleeve 542 is: the adapter sleeve 542 is provided with a bayonet 5421, and the bayonet 5421 is clamped on the needle cap 51. So that when the needle cap 51 moves, the needle cap 51 simultaneously moves the transition sleeve 542.

Preferably, in one embodiment, the sealed tube assembly 54 further includes a stopper cap 543. The stopper cap 543 is detachably mounted on the clutch tube 541, for limiting the relative rotation between the needle body 521 and the clutch tube 541. The stop cap 543 is used to limit the rotation between the needle body 521 and the clutch tube 541 during assembly, thereby resulting in a seal failure. That is, the stop cover 543 is detachably mounted on the clutch tube 541, and the stop cover 543 extends into the needle body 521 to correspondingly block the needle body 521, so that the needle body 521 and the stop cover 543 cannot rotate relatively. It will be appreciated that some release of the connection between the clutch tube 541 and the emitter assembly 40 will result in the clutch tube 541 not being able to compress the needle body 521, thereby causing the seal 522 to lose its sealing effect, resulting in a failure of the seal of the upper portion of the sensor 42. By providing the stopper cap 543, such a situation can be avoided well, and the sealing effect can be ensured well.

In one embodiment, the switching sleeve 542 is further configured to drive the stopper cap 543 to separate from the clutch tube 541. When the switching sleeve 542 is pushed up by the needle cap 51, the stopper cap 543 is also separated from the clutch tube 541.

Preferably, in one embodiment, the stopper cap 543 is mounted on the top of the clutch tube 541. A stopper 5431 is provided inside the stopper cap 543. Along the radial direction of the needle body 521 (e.g., transverse to the direction angle as shown in fig. 7), the stopper 5431 extends into the region of the needle body 521 to block and stop the needle body 521. I.e. the stopper 5431 protrudes radially into the needle body 521, so that the stopper 5431 can correspondingly block the needle body 521, thereby limiting the relative rotation between the needle body 521 and the clutch collar 541. A shift block 5432 is provided on the outer side of the stopper cap 543, and the shift block 5432 is configured to be engaged with the shift sleeve 542 so as to separate the stopper cap 543 from the clutch tube 541. Specifically, when the implantation tool 100 is used and the needle is withdrawn, the shift sleeve 542 is blocked by the shift block 5432 during the movement, and the shift sleeve 542 drives the stopper cap 543 to disengage from the top of the clutch tube 541 by applying a force to the shift block 5432. When the stopper cap 543 is disengaged, the rotational stopper is lost between the clutch tube 541 and the needle body 521, and the clutch tube 541 is disengaged from the emitter assembly 40 by rotation.

Preferably, in one embodiment, the clutch tube 541 is provided with a spiral rifling 5411, and the conversion sleeve 542 is provided with an insert 5422 inserted into the spiral rifling 5411. When the conversion sleeve 542 moves, the insert 5422 correspondingly moves in the spiral rifling 5411, so that the clutch tube 541 is driven to rotate by the cooperation between the insert 5422 and the spiral rifling 5411, thereby unlocking the clutch tube 541.

Specifically, in one embodiment, after the switching sleeve 542 drives the clutch tube 541 to rotate from the locking position to the unlocking position, the protrusion provided on the clutch tube 541 correspondingly abuts against the lower surface of the needle body 521, so that the clutch tube 541 synchronously drives the needle body 521 to move upwards in the process that the switching sleeve 542 drives the clutch tube 541 to move upwards, thereby implementing the needle withdrawal of the implantation needle 53.

Preferably, in one embodiment, the sensor 42 includes a sensor body 423 and a sealing cover 424 of the sensor disposed on a top of the sensor body 423, and the clutch tube 541 is screwed to a snap-in buckle 4241 of the sealing cover 424 of the sensor. That is, in this embodiment, the clutch tube 541 is specifically mounted in connection with the snap 4241. Specifically, in one embodiment, the hanging platform 421 and the hanging platform cavity 422 are disposed on the snap ring 4241.

Preferably, in one embodiment, the needle body 521 is received within the clutch tube 541. Namely, the needle body 521 is sleeved inside the clutch tube 541, so that the pressing effect of the clutch tube 541 on the needle body 521 can be better ensured.

Preferably, in one embodiment, the implantation tool 100 further comprises a cannula 60. The sleeve 60 is rotationally locked to the emitter assembly 40, and in particular, the sleeve 60 is rotationally locked to the bottom housing of the emitter 41. The portion of the sensor body 423 extending beyond the emitter 41 and the portion of the implantation needle 53 that extends beyond the sensor 42 are both located in the cannula 60. That is, the sleeve 60 is rotatably locked to the lower portion of the sensor 42, and the exposed portions of the sensor 42 and the implantation needle 53 can be accommodated in a sealed state by the sleeve 60. That is, in such an embodiment, the sealing of the upper portion of the sensor 42 is achieved by the engagement between the clutch tube 541, the needle body 521, and the seal 522, while the sealing of the lower portion of the sensor 42 is achieved by the sleeve 60.

Preferably, in one embodiment, the sleeve 60 is rotationally locked to the lower transmitter cap 411 of the transmitter 41, and a sleeve seal 80 is provided between the sleeve 60 and the lower transmitter cap 411. By this structure, the sealing effect of the sleeve 60 against the lower portion of the sensor 42 can be further improved. Specifically, in one embodiment, the sleeve seal 80 is a silicone seal.

Preferably, in one embodiment, the transmitter 41 includes a transmitter lower cover 411, a transmitter upper cover 412, and a circuit board 413. The upper emitter cap 412 is attached to the lower emitter cap 411. The circuit board 413 is disposed in a space surrounded by the upper emitter cover 412 and the lower emitter cover 411, and the circuit board 413 is connected to the sensor 42. 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 emitter cover 412, and the second circuit board 4132 is disposed on the lower emitter 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 formed in a groove of the lower cover 411 by integral molding, a notch is formed in the conductive adhesive 414, a part of the sensor 42 is transversely inserted into the lower cover 411, and the sensor 42 is inserted into the notch of the conductive adhesive 414 to be connected with the conductive adhesive 414. After the assembly between the sensor 42 and the emitter lower cover 411 is completed (as shown in fig. 8 and 9), the whole assembly is assembled into the first circuit board 4131 and the emitter upper cover 412, so that the sensor 42 is connected to the first circuit board 4131, and then irradiated by a UV curing lamp to form a complete emitter assembly (as shown in fig. 10).

Please refer to fig. 2, 11, 12, 13 in combination. Preferably, in one embodiment, the ejector 20 includes an ejector body 21, and a latch portion 22 and a pin portion 23 disposed on the ejector body 21. The fastening portion 22 is fastened to the elastic cantilever 12 of the housing 10. The needle clamping part 23 and the injection member body 21 together enclose a needle locking cavity 24, and the needle clamping part 24 clamps the needle cap 51 in the needle locking cavity 24. The elastic cantilever 12 refers to a component that can be elastically deformed when being stressed and can be restored when being stressed to a reduced or eliminated state.

Preferably, in one embodiment, the injector 20 further includes a pushing portion 25 disposed on the injector body 21. The pushing portion 25 is disposed corresponding to the driving key 30, and the pushing portion 25 is configured to push the driving key 30 to move relative to the housing 10, so that the driving key 30 presses and limits the elastic cantilever 12, so that the elastic cantilever 12 buckles the buckling portion 22. That is, the pushing portion 25 is configured to push the driving button 30 to move, so that the driving button 30 moves to a desired position, and the moving driving button 30 correspondingly presses the elastic cantilever 12, and the elastic cantilever 12 pressed by the driving button 30 correspondingly blocks the fastening portion 22, so that the ejector 20 is fastened to the elastic cantilever 12, and the fastening connection between the ejector 20 and the housing 10 is achieved.

When the ejector 20 is assembled into the housing 10, as shown in fig. 11, the driving button 30 is in a pressed state before the assembly and pushing, after the ejector 20 is pushed, the end face of the pushing portion 25 will push against the bottom face of the driving button 30, at this time, the ejector 20 will push the driving button 30 against and until the ejector 20 is pushed against the stop end face 101 of the housing 10 (as shown in fig. 12). When the pushing member 20 stops pushing, the pushing member 20 will move downward under the force of the driving spring, until the fastening portion 22 contacts the elastic cantilever 12. Since the elastic cantilever 12 is blocked by the driving button 30 from deforming, the elastic cantilever 12 cannot deform, and the elastic cantilever 12 blocks the fastening portion 22, so that the ejector 20 is fastened to the housing 10.

When the implantation tool is used, only the driving button 30 is pressed, and at this time, the driving button 30 will give the elastic cantilever 12 a deformation space, so that the elastic cantilever 12 can smoothly retract and deform, and the ejector 20 is separated from the elastic cantilever 12.

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 realize the locking and releasing of the injection member 20, and simplify the assembly process, and in the assembly process, the installation and positioning of the driving key 30 and the fastening installation between the injection member 20 and the housing 10 can be completed by pushing the injection member 20, so that the assembly difficulty is reduced, and the assembly efficiency can be better improved.

Preferably, in one embodiment, the driving key 30 includes a key body 31 and a button 32 disposed at the bottom of the key body 31, and the button 32 is used for pressing and limiting the elastic cantilever 12. The pushing portion 25 is disposed corresponding to the button 32, and is configured to push the button 32. That is, in this embodiment, the pushing portion 25 is specifically configured to push the button 32, so as to drive the driving button 30 to move as a whole. Meanwhile, the driving button 30 also presses and limits the elastic cantilever 12 through the button 32 disposed at the bottom, so as to buckle the ejector 20.

Preferably, in one embodiment, the button 32 is located on the inner side of the elastic cantilever 12, and the fastening portion 22 is located on the outer side of the elastic cantilever 12. Wherein, the inner side of the elastic cantilever 12 refers to the side of the elastic cantilever 12 relatively close to the central axis of the housing 10, and the outer side of the elastic cantilever 12 refers to the side of the elastic cantilever 12 relatively far from the central axis of the housing 10. In this embodiment, the button 32 presses the elastic cantilever 12 to limit the elastic cantilever 12, so that the elastic cantilever 12 deforms outwards, thereby fastening the fastening portion 22. When the driving button 30 is pressed, the elastic cantilever 12 deforms inwards to recover by its own elasticity.

Preferably, in one embodiment, the elastic cantilever 12 includes a connecting arm 121 and a clamping table 122, and the connecting arm 121 is connected to the housing 10. The clamping platform 122 is disposed at the bottom of the connecting arm 121, and is used for abutting and limiting the fastening portion 22. That is, in this embodiment, the elastic cantilever 12 specifically limits the fastening portion 22 by the clamping platform 122, so as to fasten the ejector 20 to the housing 10.

Preferably, in one embodiment, a convex hanging table 221 is disposed on an inner surface (a surface near a central axis of the housing 10) of the fastening portion 22, and the clamping table 122 is used for abutting and limiting the convex hanging table 221 so as to fasten the fastening portion 22. Through this structure, the reliability of the snap connection between the ejector 20 and the elastic cantilever 12 can be better ensured, and the ejector 20 is better prevented from accidentally slipping.

Preferably, in one embodiment, the first surface 2211 of the protruding hanging platform 221 for abutting against the clamping platform 122, and the second surface 1221 of the clamping platform 122 for abutting against the protruding hanging platform 221 are inclined surfaces, and the moving direction (the direction angle shown in fig. 13 is from top to bottom) after the ejector 20 is tripped, and the two inclined surfaces are inclined towards the central axis away from the housing 10. By the arrangement of the two inclined planes, the pushing member 20 can be more smoothly separated from the elastic cantilever 12 after the driving key 30 is pressed.

Preferably, in one embodiment, a guiding chamfer 1222 is provided on a side of the bottom of the detent 122 adjacent to the button 32. When the ejector 20 is pushed into the housing 10, the top surface of the pushing portion 25 is correspondingly contacted with the guiding inclined plane 1222, and the elastic cantilever 12 can be better guided by the guiding inclined plane 1222, so that the elastic cantilever 12 deforms outwards, and the difficulty of pushing the ejector 20 is reduced.

Preferably, in one embodiment, the elastic cantilevers 12 are provided in plural (at least two), and all the elastic cantilevers 12 are distributed in the housing 10 in a ring shape, i.e., all the elastic cantilevers 12 are distributed in the housing 10 in a ring shape as a whole. Each elastic cantilever 12 is correspondingly provided with one button 32 and one buckling part 22. Namely, the inner side of each elastic cantilever 12 is correspondingly provided with one button buckle 32, and the outer side is correspondingly provided with one buckle part 22, so that the stress on each side among the driving button 30, the pushing member 20 and the elastic cantilever 12 can be balanced. For example, in one embodiment, two elastic cantilevers 12 may be provided, and the two elastic cantilevers 12 may be disposed opposite to each other with a center axis of the housing 10 as a center.

Please refer to fig. 3, 14, 15, 16, 17 in combination. Preferably, in one embodiment, the implantation tool 100 further comprises a stop 70. The limiting block 70 is fastened to the housing 10, and the limiting block 70 abuts against the needle clamping portion 23 and presses the needle clamping portion 23 to limit the needle clamping portion 23, so that the needle clamping portion 23 fastens the needle cap 51 in the needle locking cavity 24. After the ejector 20 is released from the housing 10, the needle clamping portion 23 can be separated from the limiting block 70, so that the needle withdrawing driving member 55 drives the needle cap 51 to be separated from the needle locking cavity 24.

When the ejector 20 is released from the housing 10, the driving spring in the housing 10 drives the ejector 20 to move, and the stopper 70 is not moved due to the stopper 70 being fastened to the housing 10, so that the ejector 20 and the stopper 70 are relatively displaced. When the injector 20 moves to a certain position, the needle clamping portion 23 is separated from the limiting block 70, and the pressing force of the needle cap 51 to the needle clamping portion 23 is reduced due to less pushing force of the limiting block 70 to the needle clamping portion 23, so that the needle withdrawing driver 55 provides driving force to drive the needle cap 51 to reversely move with the implant needle 53, thereby completing needle withdrawing of the implant needle 53.

The needle withdrawing driving member 55 may be an elastic driving member, which means a member capable of elastically deforming after being stressed and recovering an original state after being reduced or eliminated. In one embodiment, the needle retraction drive 55 may be a spring, and the needle retraction drive 55 may be disposed between the needle cap 51 and the pusher body 21.

It will be appreciated that when the implantation tool is not in use, the stopper 70 pushes the needle locking portion 23 to make the pressing force of the needle locking portion 23 to press the needle cap 51 greater than the elastic force of the needle withdrawing driver 55, so as to ensure that the needle locking portion 23 can clamp the needle cap 51 in the needle locking cavity 24 when not in use, and ensure the normal use of the implantation tool.

Preferably, in one embodiment, the housing 10 is provided with a latch arm 13, the stopper 70 is provided with a slot 71, and the stopper 70 is latched to the latch arm 13 through the slot 71. Through the structure, the reliability of the snap connection between the limiting block 70 and the shell 10 can be better ensured, and the limiting block 70 is more conveniently assembled into the shell 10.

Preferably, in one embodiment, a guiding slope 72 is provided on the top of the limiting block 70 near the side of the latch arm 13. When the limiting block 70 is assembled in the housing 10, the limiting block 70 is guided by contacting the guiding inclined plane 72 with the buckling arm 13, so that the buckling arm 13 can be smoothly buckled in the clamping groove 71, and the difficulty in assembling the limiting block 70 in the housing 10 is further reduced.

Preferably, in one embodiment, the stopper 70 includes a stopper body 73 and an abutment 74. The locking groove 71 is formed in the stopper body 73, the abutting portion 74 is provided on an inner side surface (a surface close to the central axis of the housing 10) of the stopper body 73, and the abutting portion 74 abuts against the locking pin portion 23.

Preferably, in one embodiment, the bottom surface of the limiting block 70 is provided with a detecting boss 75. It will be appreciated that the stop 70 is an internal component as it is assembled. After the assembly of the stopper 70 is completed, the position of the stopper 70 cannot be visually confirmed, and whether the stopper 70 is assembled in place cannot be intuitively judged. The detection boss 75 can be used for process detection to ensure that the limiting block 70 is assembled in place.

Preferably, in one embodiment, the side of the limiting block 70 is provided with a limiting boss 76. The limit boss 76 can form guiding and positioning function with the groove 201 on the ejector 20. As shown in fig. 16 and 17, after the ejector 20 is released and starts to slide, the limiting boss 76 can guide the ejector 20, and after the ejector 20 slides in place, the limiting boss 76 can also block and position the ejector 20, so that the ejector 20 is ensured to slide only to a required position.

Preferably, in one embodiment, the limiting block 70 is provided with a process groove 77. The process groove 77 extends along the length direction of the stopper 70, and the process groove 77 is disposed through the stopper 70, specifically, the process groove 77 penetrates the stopper 70 along the thickness direction of the stopper 70. The process groove 77 can be arranged to adapt to the molding requirement of the limiting block 70, and deformation of parts caused by too thick glue amount can be avoided when the limiting block 70 is molded.

Preferably, in one embodiment, a plurality (at least two) of the limiting blocks 70 are provided, and all the limiting blocks 70 are distributed in an annular shape as a whole, that is, all the limiting blocks 70 are distributed in an annular shape as a whole in the accommodating space 12. Each stopper 70 correspondingly abuts against one of the needle clamping portions 23, that is, a plurality of needle clamping portions 23 are arranged in the injection member 20, and each stopper 70 correspondingly abuts against the outer side of each needle clamping portion 23, so that stress on each side of the needle cap 51 can be balanced, and the needle cap 51 can be more stably buckled in the needle locking cavity 24. Specifically, in one embodiment, two limiting blocks 70 are provided, and the two limiting blocks 70 are disposed opposite to each other with a central axis of the housing 10 as a center.

Preferably, in one embodiment, the inner surface of the pin clamping portion 23 (a surface near the central axis of the housing 10) is provided with a first protrusion 231, the outer surface of the needle cap 51 (a surface far from the central axis of the housing 10) is provided with a second protrusion 511, and the first protrusion 231 abuts against the second protrusion 511. With this structure, the clamping of the needle clamping portion 23 to the needle cap 51 can be better ensured.

The implantation tool 100 with such a structure can simplify the assembly of the implantation tool, and when in assembly, all the parts (such as the limiting block 70, the emitter, the sensor, etc.) arranged on the ejector 20 can be assembled before entering the housing 10, so as to solve the problem of the limitation of the assembly operation, and finally the assembled assembly is put into the housing 10, and the assembly personnel can hear the sound of the snap-in to complete the assembly.

Please refer to fig. 2, fig. 3, fig. 18, fig. 19 in combination. Preferably, in one embodiment, the implantation tool 100 further comprises a shoe 90, the shoe 90 comprising a shoe body 91 and a brace 92 connected to the shoe body 91. The shoe body 91 is detachably connected with the housing 10, and the stay 92 extends into the housing 10 and supports and limits the driving key 30. The sleeve 60 is mounted to the shoe body 91.

That is, when the shoe 90 is mounted on the housing 10, the supporting rod 92 extends into the housing 10 and is correspondingly supported by abutting against the driving key 30, so as to provide a pressing resistance to the driving key 30, thereby limiting the driving key 30, so that the driving key 30 is pressed down and is subject to the resistance of the supporting rod 92, and the driving key 30 is prevented from being touched by mistake.

It should be noted that, the stay bar 92 may directly support the driving key 30 in an abutting manner, or the stay bar 92 may indirectly support the driving key 30 in an abutting manner (i.e., other structures may be further disposed between the stay bar 92 and the driving key 30, and the stay bar 92 may not directly support the driving key 30). That is, only when the shoe 90 is mounted on the housing 10, the stay 92 can apply resistance to the driving key 30 correspondingly, so as to avoid the driving key 30 from being touched by mistake.

In this embodiment, the support 90 has a key anti-false function by the support rods 92, so that the support 90 has more functions. Meanwhile, the implantation tool 100 does not need to be additionally provided with a key anti-false touch structure, when the bottom support 90 is detached, unlocking of the driving key 30 can be synchronously realized, so that a user can operate the implantation tool 100 more conveniently and simply, and the use experience of the user can be better improved.

Preferably, in one embodiment, the shoe body 91 includes a bottom wall 911 and a side wall 912 disposed around the bottom wall 911. Be provided with stay bar fixing base 9111 on the diapire 911, stay bar 92 fixed mounting in stay bar fixing base 9111 department, through this kind of structure, can be better ensure the stay bar 92 with connect the reliability between the collet body 91. The side wall 912 is provided with a detachable structure for detachable connection with the housing 10. The detachable structure may be any desired structure that matches the housing 10, such as a threaded structure, a hanging table structure, a fastening structure, etc., and only needs to achieve the detachable connection between the shoe 90 and the housing 10.

Preferably, in one embodiment, the implantation tool 100 further comprises a strut switch 93, wherein the strut switch 93 is slidably disposed in the accommodating space 11, that is, the strut switch 93 is disposed in the accommodating space 11, and the strut switch 93 can slide in the accommodating space 11 when not limited. The stay 92 is supported by the stay switching member 93, and the stay switching member 93 is supported by the drive key 30. That is, in this embodiment, the stay 92 indirectly abuts against the driving key 30, so that the driving key 30 is supported and limited, and the driving key 30 is limited from being pressed down. Specifically, the supporting rod 92 abuts against the supporting rod conversion member 93, so that the supporting rod conversion member 93 is supported and limited, and the supporting rod conversion member 93 abuts against the driving key 30, so that the supporting and limiting of the driving key 30 is realized. When the shoe 90 is detached from the housing 10, the stay 92 is separated from the stay switching member 93, so that the stay switching member 93 can freely slide in the accommodating space 11, and the driving key 30 can be normally pressed. In particular, the specific mounting position of the strut switch 93 may be on the housing 10 or the ejector 20.

Preferably, in one embodiment, the strut switch 93 is slidably disposed on the ejector 20. Through will the vaulting pole conversion piece 93 set up in on the pushing away the penetrating piece 20, make the position of vaulting pole conversion piece 93 can just right the drive button 30 sets up, makes the vaulting pole conversion piece 93 is located the below of drive button 30, thereby can simplify the vaulting pole 92 the structure of vaulting pole conversion piece 93 lets overall structure be simpler, also lets simultaneously the vaulting pole conversion piece 93 can be more reliable to drive button 30 supports spacingly.

Preferably, in one embodiment, the ejector 20 is provided with a limiting step 26. The limiting step 26 is disposed corresponding to the strut switch 93, and is configured to limit the slidable position of the strut switch 93 after the strut 92 is separated from the strut switch 93. Specifically, when the shoe 90 is detached, the stay 92 is separated from the stay conversion member 93, the stay conversion member 93 may slide downward relative to the injection member 20, and the distance that the stay conversion member 93 may slide downward may be limited by the limiting step 26. I.e. when the stay bar switching member 93 slides to a certain distance, it is blocked by the limiting step 26, so that it cannot slide down continuously. With this structure, the stay switching member 93 can be prevented from coming out of the ejector 20.

Preferably, in one embodiment, the strut switch 93 includes a switch body 931, a first rod 932, and a second rod 933. The first rod 932 is disposed at one end of the converter body 931 and abuts against the stay 92. The second rod 933 is disposed at the other end of the conversion member body 931 and abuts against the driving button 30. The limiting step 26 is disposed corresponding to the converter body 931, that is, the limiting step 26 limits the position of the converter body 931, thereby limiting the strut converter 93.

Preferably, in one embodiment, a sealing ring 94 is disposed on the bottom wall 911, and the sealing ring 94 abuts against the housing 10. By means of the sealing ring 94, the sealing performance between the bottom bracket 90 and the housing 10 can be better guaranteed, and the components in the housing 10 can be better protected.

Preferably, in one embodiment, a seal ring mounting seat 9112 is disposed on the bottom wall 911, a seal ring mounting cavity is disposed in the seal ring mounting seat 9112, and the seal ring 94 is disposed in the seal ring mounting cavity. By this structure, the reliability of the installation of the seal ring 94 can be better ensured, so that the seal effect can be further ensured.

Specifically, in one embodiment, a hanging stand or screw connection is used between the sleeve 60 and the emitter assembly 40, and a hanging stand or screw connection is used between the shoe 90 and the housing 10. The unlocking screw direction between the shoe 90 and the housing 10, and between the sleeve 60 and the transmitter assembly 40 is the same. For example: when left-handed threads are provided between the shoe 90 and the housing 10, left-handed threads are provided between the sleeve 60 and the emitter assembly 40; when right-hand threads are provided between the shoe 90 and the housing 10, right-hand threads are provided between the sleeve 60 and the emitter assembly 40. Since the shoe 90 is connected to the sleeve 60, the shoe 90 simultaneously rotates the sleeve 60 when the shoe 90 is screwed and disassembled. Such that the sleeve 60 can be removed from the emitter assembly 40 at the same time as the shoe 90 is removed from the housing 10.

The implantation tool 100 realizes the anti-false touch of the driving key 30 through the bottom bracket 90, and has the characteristics of simple overall structure principle, ingenious application, low functional failure and the like.

While the invention has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the invention.

Claims (10)

1. An implantation tool is characterized by comprising a shell, an injection member, a driving key, an emitter assembly and an implantation needle assembly;

the pushing piece is buckled and installed in the shell;

the driving key is arranged on the shell and used for driving the ejector to release from the shell;

the emitter assembly comprises an emitter and a sensor, wherein the emitter is detachably arranged on the ejector, and the sensor is arranged on the emitter;

the implantation needle assembly comprises a needle head cap, a needle head, an implantation needle, a sealing tube group and a needle withdrawing driving piece;

the needle head cap is buckled and installed in the injection pushing piece;

the needle head is abutted with the end face of the sealing cover of the sensor;

one end of the implantation needle is connected with the needle head, and the other end of the implantation needle penetrates into the sensor and penetrates out of the sensor;

the sealing tube group is detachably arranged on the emitter assembly and is in abutting connection with the needle head so as to press the needle head on the end face of the sealing cover of the sensor;

the needle withdrawing driving piece is connected with the needle head cap and is used for driving the needle head cap to move relative to the injection pushing piece when withdrawing the needle, so that the needle head cap drives the sealing tube group and the needle head to move, and the sealing tube group and the needle head are separated from the emitter component.

2. The implantation tool of claim 1, wherein said needle comprises a needle body and a seal disposed between said needle body and a seal cap of said sensor;

the sealing tube group comprises a clutch tube and a conversion sleeve;

the clutch tube is rotationally locked on the emitter assembly and is abutted with the needle head body so as to press the sealing piece on the end face of the sealing cover of the sensor;

the switching sleeve is arranged corresponding to the needle head cap and can move under the drive of the needle head cap so as to drive the clutch tube to rotate and unlock and drive the clutch tube to move.

3. The implantation tool of claim 2, wherein said sealed tube set further comprises a stop cap;

the stop cover is detachably arranged on the clutch tube and used for limiting the rotation between the needle head body and the clutch tube;

the switching sleeve is also used for driving the stop cover to be separated from the clutch tube.

4. An implantation tool according to claim 2, wherein the clutch tube is provided with a spiral rifling and the transition sleeve is provided with a plug inserted into the spiral rifling.

5. The implantation tool of claim 2, wherein said sensor comprises a sensor body and a sealing cover of said sensor disposed on top of said sensor body;

the clutch tube is rotationally locked on the snap fastener of the sealing cover of the sensor.

6. The implant tool of any one of claims 1-5, wherein the pusher comprises a pusher body, a clip portion disposed on the pusher body, and a pin portion;

the clamping part is clamped on the elastic cantilever on the shell;

the needle clamping part and the injection part body jointly enclose a needle locking cavity, and the needle clamping part clamps the needle head cap in the needle locking cavity.

7. The implantation tool of claim 6, wherein said pusher further comprises a pusher disposed on said pusher body;

the pushing part is arranged corresponding to the driving key and is used for pushing the driving key to move relative to the shell, so that the driving key extrudes and limits the elastic cantilever, and the elastic cantilever is used for buckling the buckling part.

8. The implantation tool of claim 6, further comprising a stop block;

The limiting block is buckled on the shell, is abutted with the needle clamping part and extrudes and limits the needle clamping part, so that the needle clamping part can buckle the needle head cap in the needle locking cavity;

after the ejector is tripped from the shell, the needle clamping part can be separated from the limiting block, so that the needle withdrawing driving part drives the needle head cap to be separated from the needle locking cavity.

9. The implant tool of any one of claims 1, 2, 3, 4, 5, 7, 8, further comprising a sleeve rotationally locked to a bottom housing of the emitter;

the portion of the sensor extending beyond the emitter and the portion of the implant needle extending beyond the sensor are both located in the cannula.

10. The implantation tool of claim 9, further comprising a shoe body and a brace connected to the shoe body;

the collet body is detachably connected with the shell;

the supporting rod stretches into the shell and supports and limits the driving key;

the sleeve is arranged on the collet body.