Implantation tool needle feeding and needle withdrawal mechanism and implantation tool

Abstract

Compared with the prior art, the needle delivery and needle withdrawal mechanism of the implantation tool disclosed in the present application includes: a support body; an ejection base arranged inside the support body; the ejection base has a contact state connected to the support body and a detached state detached from the support body; an ejection spring arranged between the support body and the ejection base, the ejection spring is used to push the ejection base downward; an ejection body arranged on the ejection base, which can be used to install the sensor implantation needle; a needle withdrawal structure, which is used to collect the sensor implantation needle pierced into the skin into the support body. Compared with the prior art, the needle delivery and needle withdrawal mechanism of the implantation tool provided in the present application can avoid the pain caused by excessive or insufficient force caused by human factors, and can realize the automatic retraction of the sensor implantation needle after it is inserted into the body, significantly reducing the user's discomfort during the implantation of the sensor implantation needle. The present application also relates to an implantation tool, which also has the above-mentioned beneficial effects.

Description

Technical Field

[0001] The present application relates to the technical field of medical instruments, and more specifically, to a needle feeding and withdrawing mechanism for an implantation tool. The present application also relates to an implantation tool. Background Art

[0002] As people's living standards improve, they pay more attention to their physical health and pay attention to health preservation and the detection of various body parameters. For example, it is necessary to regularly test the blood sugar index and pay attention to the sugar content in the blood. We usually pay attention to the physical condition and monitor the health index from the side through regular blood sugar index monitoring.

[0003] At present, there are two main methods for blood glucose testing. One is to prick the finger to collect blood from the fingertip, and use the test blood glucose strips in conjunction with the blood glucose meter to collect discrete blood glucose values. The other is the dynamic blood glucose monitoring system CGM, which implants a blood glucose sensor subcutaneously, and the enzyme on the sensor reacts with the subcutaneous tissue fluid to detect the blood glucose value, and cooperates with the transmitter to send the blood glucose value to the terminal, so that continuous blood glucose values ​​can be collected. For the dynamic blood glucose monitoring system CGM, the implantation tool for implanting the blood glucose test sensor is one of the indispensable devices. During the use of the implantation tool in the prior art, there is often discomfort caused to the user due to excessive or insufficient force due to human factors.

[0004] Therefore, how to provide an implant tool needle delivery and withdrawal mechanism that can avoid the pain caused by excessive or insufficient force due to human factors, reduce the user's discomfort, and realize the automatic withdrawal of the sensor implant needle after it is inserted into the body has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides an implantation tool needle delivery and withdrawal mechanism, which can avoid the pain caused by excessive or insufficient force caused by human factors, reduce the user's discomfort, and can realize the automatic withdrawal of the sensing implant needle after it is inserted into the body. The present application also relates to an implantation tool, which also has the above beneficial effects.

[0006] The technical solutions provided by this application are as follows:

[0007] The present application provides an implant tool needle feeding and retracting mechanism, comprising: a supporting body; an ejection base arranged inside the supporting body; the ejection base having a contact state connected to the supporting body and a detached state detached from the supporting body; an ejection spring arranged between the supporting body and the ejection base, the ejection spring being used to push the ejection base downward; an ejection body arranged on the ejection base and capable of installing a sensor implant needle; and a needle retracting structure, which is used to collect the sensor implant needle that has pierced the skin into the supporting body.

[0008] Furthermore, in a preferred embodiment of the present invention, the needle withdrawal structure includes: a needle withdrawal spring arranged on the ejection base; a needle seat arranged on the top of the needle withdrawal spring; a needle body fixing seat connected to the needle seat and used to fix the sensor implant needle; a first constraint arm arranged inside the support body; a second constraint arm arranged on the ejection base, the second constraint arm having a retracted state constrained by the inner side of the first constraint arm and a disengaged state disengaged from the constraint of the first constraint arm; the second constraint arm is provided with a limiting protrusion for pressing down the needle seat, and when the second constraint arm is in the retracted state, the limiting protrusion presses down to limit the needle seat.

[0009] Furthermore, in a preferred embodiment of the present invention, an upper end of the second restraining arm is arranged at a supporting contact point close to a side of an inner wall of the supporting body.

[0010] Furthermore, in a preferred embodiment of the present invention, a first bevel end is provided around the upper end of the needle seat, and a second bevel end cooperating with the first bevel end is provided at the lower end of the limiting protrusion.

[0011] Furthermore, in a preferred embodiment of the present invention, an elastic hook arm is provided inside the support body; a positioning structure cooperating with the elastic hook arm is provided on the ejection base; the positioning structure has a positioning state placed on the elastic hook arm and a detached state detached from the elastic hook arm.

[0012] Furthermore, in a preferred embodiment of the present invention, the elastic hook arm includes: a hook arm body; a trigger protrusion provided on the hook arm body and cooperating with the trigger part; a limiting hook body provided on the hook arm body and located below the trigger protrusion, and the limiting hook body is used for a limiting positioning structure.

[0013] Furthermore, in a preferred embodiment of the present invention, a trigger portion is further provided on the support body, and the trigger portion is used to trigger the elastic hook arm to move outward so that the positioning structure is in a disengaged state.

[0014] Furthermore, in a preferred embodiment of the present invention, the trigger part includes: a launch button arranged on the upper part of the supporting body, used for pressing down the elastic hook arm and pushing the elastic hook arm to move outward; a button compression spring located between the supporting body and the launch button; a button positioning hook is provided in the middle part of the launch button, and the button positioning hook is in contact with the inner wall of the upper end of the supporting body.

[0015] Furthermore, in a preferred embodiment of the present invention, an anti-trigger cover is also provided on the launch button.

[0016] The present application also provides an implantation tool, including: the implantation tool needle feeding and retracting mechanism as described above.

[0017] Compared with the prior art, the present invention provides an implant tool needle feeding and retracting mechanism, which comprises: a supporting body, an ejection base is arranged inside the supporting body, and the ejection base has a contact state connected with the supporting body and a detached state detached from the supporting body; wherein, an ejection spring is arranged between the supporting body and the ejection base, and the ejection spring is used to push the ejection base downward, an ejection body is arranged on the ejection base, and a sensor implantation needle can be installed on the ejection body, and also comprises a needle retracting structure, which is used to collect the sensor implantation needle pierced into the skin into the supporting body. In the needle delivery and withdrawal mechanism of the implantation tool involved in the present application, the elastic force of the ejection spring is used to push the sensor implantation needle, the operation is smooth, and the pushing force is constant, avoiding the user's discomfort caused by excessive or insufficient force due to human factors. At the same time, it will not cause the sensor implantation needle to enter the human skin due to fear of pain due to human factors. Compared with the existing technology, it can avoid the pain caused by excessive or insufficient force caused by human factors, and can realize the automatic retraction of the sensor implantation needle after it is inserted into the body, significantly reducing the user's discomfort during the implantation of the sensor implantation needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the needle feeding and needle withdrawal mechanism of the implantation tool provided by an embodiment of the present invention applied to the implantation tool;

[0020] Figure 2 A schematic diagram of a needle withdrawal structure provided in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a triggering unit provided by an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of a signal transmitter involved in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of an implantation tool provided by an embodiment of the present invention in a needle delivery state;

[0024] Figure 6 A schematic diagram of an implantation tool provided by an embodiment of the present invention in a needle withdrawal state;

[0025] Figure 7 A schematic diagram of components of an implantation tool provided by an embodiment of the present invention;

[0026] Figure 8 An exploded view of an implantation tool provided by an embodiment of the present invention;

[0027] Fig. 9 Schematic diagram of a disinfection storage box according to an embodiment of the present invention;

[0028] Fig.10 A schematic diagram of an implantation tool provided by an embodiment of the present invention being placed in a sterilization storage box;

[0029] Fig.11 A schematic diagram of the overall three-dimensional structure of the implantation tool provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art 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 in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0031] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0035] Please Figures 1 to 11 As shown, the needle feeding and retracting mechanism of the implantation tool provided in the embodiment of the present application includes: a supporting body 1; an ejection base 2 arranged inside the supporting body 1; the ejection base 2 has a contact state connected to the supporting body 1 and a detached state detached from the supporting body 1; an ejection spring 3 arranged between the supporting body 1 and the ejection base 2, and the ejection spring 3 is used to push the ejection base 2 downward; an ejection body 5 arranged on the ejection base 2, which can be used to install the sensor implantation needle 6; and a needle retracting structure, which is used to collect the sensor implantation needle 6 that has pierced the skin into the supporting body 1.

[0036] The embodiment of the present invention provides a needle feeding and retracting mechanism for an implantation tool, which, compared with the prior art, comprises: a supporting body 1, an ejection base 2 is arranged inside the supporting body 1, and the ejection base 2 has a contact state connected to the supporting body 1 and a detached state detached from the supporting body 1; wherein, an ejection spring 3 is arranged between the supporting body 1 and the ejection base 2, and the ejection spring 3 is used to push the ejection base 2 downward, an ejection body 5 is arranged on the ejection base 2, and a sensor implantation needle 6 can be installed on the ejection body 5, and also comprises a needle retracting structure, which is used to collect the sensor implantation needle 6 that has pierced the skin into the supporting body 1. In the needle delivery and withdrawal mechanism of the implantation tool involved in the present application, the elastic force of the ejection spring 3 is used to push the sensor implantation needle 6, the operation is smooth, and the pushing force is constant, avoiding the discomfort caused by excessive or insufficient force due to human factors to the user. At the same time, it will not cause the sensor implantation needle 6 to enter the human skin due to fear of pain due to human factors. Compared with the existing technology, it can avoid the pain caused by excessive or insufficient force caused by human factors, and can realize the automatic retraction of the sensor implantation needle 6 after it is inserted into the body, which significantly reduces the discomfort of the user during the implantation of the sensor implantation needle 6.

[0037] Specifically, in the embodiment of the present invention, the needle withdrawal structure 9 includes: a needle withdrawal spring 901 arranged on the ejection base 2; a needle seat 902 arranged on the top of the needle withdrawal spring 901; a needle body fixing seat 903 connected to the needle seat 902 and used to fix the sensing implant needle 6; a first constraint arm 904 arranged inside the support body 1; a second constraint arm 905 arranged on the ejection base 2, the second constraint arm 905 has a contracted state constrained by the inner side of the first constraint arm 904 and a disengaged state disengaged from the constraint of the first constraint arm 904; the second constraint arm 905 is provided with a limiting protrusion 906 for pressing down the needle seat 902, and when the second constraint arm 905 is in the contracted state, the limiting protrusion 906 presses down the limiting needle seat 902.

[0038] Specifically, in the embodiment of the present invention, the upper end of the second restraining arm is disposed at the supporting contact 907 close to the inner wall of the supporting body 1 .

[0039] Specifically, in the embodiment of the present invention, a first bevel end is provided around the upper end of the needle seat 902, and a second bevel end matching with the first bevel end is provided at the lower end of the limiting protrusion.

[0040] Specifically, in an embodiment of the present invention, an elastic hook arm 101 is provided inside the support body 1; a positioning structure 201 cooperating with the elastic hook arm 101 is provided on the ejection base 2; the positioning structure 201 has a positioning state placed on the elastic hook arm 101 and a detached state detached from the elastic hook arm 101.

[0041] Specifically, in an embodiment of the present invention, the elastic hook arm 101 includes: a hook arm body 102; a trigger protrusion 103 provided on the hook arm body 102 and cooperating with the trigger part 4; a limiting hook body 104 provided on the hook arm body 102 and located below the trigger protrusion 103, and the limiting hook body 104 is used for limiting the positioning structure 201.

[0042] Specifically, in the embodiment of the present invention, a triggering portion 4 is further provided on the supporting body 1 , and the triggering portion 4 is used to trigger the elastic hook arm 101 to move outward so that the positioning structure 20 is in a disengaged state.

[0043] Specifically, in the embodiment of the present invention, the trigger part 4 includes: a launch button 401 arranged on the upper part of the support body 1, used to press down the elastic hook arm 101 and push the elastic hook arm 101 to move outward; a button compression spring 402 located between the support body 1 and the launch button 401; a button positioning hook 403 is provided in the middle of the launch button 401, and the button positioning hook 403 is in contact with the inner wall of the upper end of the support body 1.

[0044] Specifically, in the embodiment of the present invention, an anti-trigger cover 7 is also provided on the launch button.

[0045] In addition, an embodiment of the present invention further provides an implantation tool, including the implantation tool needle feeding and needle withdrawal mechanism as described above, which also has the above-mentioned beneficial effects.

[0046] More specifically, the implantation tool using the push-pin structure of the blood glucose tester involved in this embodiment is as follows:

[0047] The implantation tool comprises: a supporting body 1, an ejection base 2 is arranged inside the supporting body 1, and the ejection base 2 has a positioning state in contact with the supporting body 1 and a detached state from the supporting body 1; wherein, an ejection spring 3 is arranged between the supporting body 1 and the ejection base 2, and the ejection spring 3 is used to push the ejection base 2 downward, and an ejection body 5 is arranged on the ejection base 2, and a sensor implantation needle 6 is installed on the ejection body 5, which is used to carry a sensor 10 and deliver the sensor 10 into human skin; in addition, it also involves a trigger part 4, which is used to trigger the supporting body 1 so that the ejection base 2 is detached from the supporting body 1; and a signal transmitter 8, which is used to transmit the data sensed by the sensor 10 to the terminal. In the implantation tool involved in the present application, when the trigger part 4 is pressed downward, the ejection base 2 will be triggered to separate from the supporting body 1. The ejection base 2 will slide down under the action of the spring, and drive the ejection body 5 to slide down, thereby driving the sensor implantation needle 6 to slide down and penetrate the human skin. The elastic force of the ejection spring 3 is used for pushing. The operation is smooth and the force of pushing is constant. There will be no pain or discomfort caused by excessive or insufficient force due to human factors. The one-button triggering of the trigger part 4 will not be terminated due to fear of pain during the implantation process due to human factors. Compared with the prior art, it can avoid the pain and discomfort caused by excessive or insufficient force due to human factors, and significantly reduce the discomfort of the user during the implantation of the sensor implantation needle 6.

[0048] The implantation tool further comprises: a needle withdrawal structure 9 for withdrawing the sensor implantation needle 6 that has pierced the skin into the support body 1 .

[0049] Among them, the needle withdrawal structure 9 includes: a needle withdrawal spring 901 arranged on the ejection base 2; a needle seat 902 arranged on the top of the needle withdrawal spring 901; a needle body fixing seat 903 connected to the needle seat 902 and used to fix the sensor implant needle 6; a first constraint arm 904 arranged inside the support body 1; a second constraint arm 905 arranged on the ejection base 2, the second constraint arm 905 has a contracted state constrained by the inner side of the first constraint arm 904 and a disengaged state disengaged from the constraint of the first constraint arm 904; the second constraint arm 905 is provided with a limiting protrusion 906 for pressing down the needle seat 902, and when the second constraint arm 905 is in the contracted state, the limiting protrusion 906 presses down the limiting needle seat 902.

[0050] A supporting contact 907 is provided on one side of the upper end of the second restraining arm 905 close to the first restraining arm 904 .

[0051] Among them, a matching contact surface 908 that matches with the limiting protrusion 906 is provided on the upper part of the needle seat 902.

[0052] Among them, a first bevel end is arranged around the upper end of the needle seat 902, and a second bevel end matching with the first bevel end is arranged at the lower end of the limiting protrusion 906.

[0053] Among them, an elastic hook arm 101 is provided inside the support body 1; a positioning structure 201 cooperating with the elastic hook arm 101 is provided on the ejection base 2; the positioning structure 201 has a positioning state placed on the elastic hook arm 101 and a detached state detached from the elastic hook arm 101.

[0054] Among them, the elastic hook arm 101 includes: a hook arm body 102; a trigger protrusion 103 arranged on the hook arm body 102 and cooperating with the trigger part 4; a limiting hook body 104 arranged on the hook arm body 102 and located below the trigger protrusion 103, and the limiting hook body 104 is used to limit the positioning structure 201.

[0055] The supporting body 1 is further provided with a triggering portion 4, which is used to trigger the elastic hook arm 101 to move outward so that the positioning structure 201 is in a disengaged state.

[0056] Among them, the trigger part 4 includes: a launch button 401 arranged on the upper part of the support body 1, used to press down the elastic hook arm 101 and push the elastic hook arm 101 to move outward; a button compression spring 402 located between the support body 1 and the launch button 401; a button positioning hook 403 is provided in the middle of the launch button 401, and the button positioning hook 403 is in contact with the inner wall of the upper end of the support body 1.

[0057] Among them, an anti-trigger cover 7 is also provided on the launch button 401.

[0058] Among them, the triggering part of the launch button 401 envelops the triggering part of the supporting upper cover in the supporting body 1, and the four bones of the launch button 401 are covered with the supporting upper cover. These two components constrain and limit each other to ensure the stability of the triggering direction. To trigger, you only need to press the launch button 401 to ensure that the four directions are smoothly released, thereby overcoming the problem of misalignment that is easy to occur during the triggering process.

[0059] It should be noted that, in the implantation tool involved in this embodiment, the trigger part is located on the support body 1. When in use, pressing the trigger part 4 can trigger the support body 1, pushing the elastic hook arm 101 on the support body 1 to expand outward in all directions, causing the ejection base 2 to lose the upward supporting force provided by the elastic hook arm 101. The ejection base 2 is separated from the position constraint of the hook arm and is pushed downward under the action of the ejection spring 3 in a compressed state. The ejection body 5 moves downward with the ejection base 2, and the sensor implantation needle 6 on the ejection body 5 penetrates the human skin.

[0060] Then, the sensor implantation needle 6 pierces the human skin, the sensor 10 carried by the sensor implantation needle 6 remains in the human body, and the sensor implantation needle 6 is recovered into the supporting body 1 under the action of the needle withdrawal structure 9. The specific process is as follows:

[0061] The support upper cover is provided with a first restraining arm 904, and the ejection base 2 is provided with a second restraining arm 905. The first restraining arm 904 can restrain the second restraining arm 905 on the ejection base 2 to prevent the second restraining arm 905 from expanding outwardly. Figure 5 and Figure 6 As shown, after the second restraining arm 905 moves downward for a certain distance, it will no longer be affected by the envelope force of the first restraining arm 904. Since the second constraint arm 905 is provided with a limiting protrusion 906 for constraining the needle seat 902 to move upward, when the second constraint arm 905 is under the action of the envelope force of the first constraint arm 904, the limiting protrusion 906 limits the needle seat 902 from moving upward, and at this time, the needle withdrawal spring 901 is in a compressed state; however, as the ejection base 2 is separated from the elastic hook arm 101, the ejection spring 3 pushes the ejection base 2 downward, and after the implant needle carrying the sensor 10 pierces the human skin, the second constraint arm 905 moves downward with the ejection base 2 and is no longer affected by the envelope force of the first constraint arm 904. The needle withdrawal spring 901, which was originally in a compressed state, provides an upward force for the needle seat 902. The second constraint arm 905, which has lost the constraint force provided by the first constraint arm 904, moves outward after being subjected to the upward force of the needle seat 902, and the implant needle is retracted into the support body 1 under the action of the needle withdrawal spring 901, completing the needle withdrawal action.

[0062] It should be noted that the blood glucose transmitter involved in the embodiment of the present application mainly involves two parts: the implantation tool part and the signal transmitter 8. To prevent secondary infection, the implantation tool cannot be used again after the implantation is completed, that is, the implantation tool is a disposable product. After the sensor 10 is implanted, the signal transmitter 8 will be attached to the skin, and a sticker 808 is provided at the bottom of the signal transmitter 8.

[0063] Since the implant needle is completely retracted into the support body 1 after the needle is withdrawn and is no longer exposed to the outside of the device, accidental damage to the user caused by the needle body can be avoided; in addition, the second constraint arm 905 cannot return to the inside of the first constraint arm 904 after the needle is withdrawn. At this time, pressing the trigger part 4 cannot make the sensor implant needle 6 pierce the human skin for the second time. Therefore, the implant tool involved in this embodiment cannot be used for the second time. This has the advantage of preventing the sensor implant needle 6 from being reused, which helps to improve the standardization of the use of medical equipment and is more hygienic.

[0064] Among them, the support body 1 includes: a support upper cover 105; a support lower cover 106 matched with the support upper cover 105; the support lower cover 106 includes: a mounting docking part used to be matched with the support upper cover and covered on the outside of the ejection body 5; a position constraint part connected to the lower end of the docking part and used to constrain the position of the signal transmitter 8; and a base ejection part connected to the lower end of the position constraint part and can be attached to the skin surface.

[0065] Among them, the signal transmitter 8 includes: a blood glucose data transmission unit that can be connected to the blood glucose test sensor 10; a blood glucose data transmitting unit for sending blood glucose data to the terminal; the blood glucose data transmission unit and the blood glucose data transmitting unit are detachably connected, and the blood glucose data transmitting unit is assembled in the support body 1.

[0066] In this embodiment, the implant tool involved is a split structure. It should be noted that the implant tool is sterilized in a sterile workshop. The disinfection method mainly adopts laser ray disinfection. After disinfection, the product is sealed and the sealing sticker of the product is opened when the user uses it. Since the electronic components will be damaged after the disinfection, the electronic components are separated from the electronic components. The separation adopts the separation of the implant tool and the transmitter, and the sensor implant needle 6 waterproof silicone silicone protective cover and other components are assembled in the implant tool for overall disinfection. Such a design can achieve comprehensive disinfection without any impact on the electronic components, ensuring that the product is safer and more reliable to use.

[0067] like Fig. 9 and Fig.10 As shown, the implantation tool involved in this embodiment may also be provided with a disinfection storage box 11; the disinfection storage box 11 is provided with a transmitter storage portion 110 for placing the signal transmitter 8; the disinfection storage box 11 is provided with an implantation tool storage portion 111 for placing the implantation tool. More specifically, finger placement positions 112 are provided on both sides of the implantation tool storage portion 111 for conveniently picking up the implantation tool. In addition, a sealing sticker tearing position 113 is also provided on the implantation tool storage portion 111. This placement method can quickly guide the user to use it. The user only needs to tear off the sealing film and face the card slot to load the transmitter into the implantation tool, which is convenient to install and saves time and effort.

[0068] Among them, the signal transmitter 8 includes: a transmitter shell composed of a transmitter upper cover 801 and a transmitter lower cover 802; a mounting base arranged in the transmitter shell; a printed circuit board 803, a flexible circuit board 804, a button battery 805, and a conductive electrode 806 arranged on the mounting base; a silicone protective cover 807 clamped with the transmitter upper cover 801; the connecting seam between the transmitter upper cover 801 and the transmitter lower cover 802 is filled with a waterproof adhesive material; the flexible circuit board 804 and the transmitter upper cover 801 and the transmitter lower cover 802 are filled with a waterproof adhesive material; and the silicone protective cover 807 and the conductive electrode 806 are filled with waterproof silicone.

[0069] It should be noted that the transmitter upper cover FPC board adopts waterproof glue to be dotted into the glue seam to achieve the function of sealing and waterproofing; the waterproofing of the FPC board and the transmitter lower cover is to apply a layer of waterproof glue on the bottom of the transmitter and the FPC board to prevent the sealing and waterproofing of the FPC board and the transmitter lower cover. The waterproofing of the transmitter upper cover 801 and the transmitter lower cover 802 is achieved by penetrating waterproof glue in the connection seam to achieve the waterproofing requirements.

[0070] The silicone protective cover, waterproof silicone and conductive electrode are a component part. The conductive electrode is installed in the waterproof silicone, and the waterproof silicone is installed in the silicone protective cover 807. The silicone protective cover 807 is provided with buckles to connect with the transmitter cover 801 in a snap-in manner, and a concave point is provided at the transmitting edge to locate the direction, and then the tension of the buckle position is used to deform the silicone to achieve the waterproof effect. Specifically, the number of buckles is 3 and the number of concave points is 3.

[0071] When the three buckles of the silicone protective cover 807 are buckled into the transmitter cover 801, the waterproof silicone will be deformed by the tension of the buckles. During the deformation process, the conductive electrodes will be connected to the FPC board circuit, and the waterproof silicone and the FPC board will achieve a waterproof effect due to the compression force.

[0072] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An implant tool needle feeding and retracting mechanism, characterized in that: include: A supporting body, wherein an elastic hook arm is provided inside the supporting body; an ejection base disposed inside the support body; The ejection base has a contact state connected to the support body and a disengagement state disengaged from the support body; an ejection spring disposed between the support body and the ejection base, the ejection spring being used to push the ejection base downward; The ejection body is arranged on the ejection base and can be used to install the ejection body of the sensor implantation needle; A needle withdrawal structure, used to withdraw the sensor implantation needle that has pierced the skin into the support body; The needle withdrawal structure comprises: a needle withdrawal spring arranged on the ejection base; a needle seat arranged on the top of the needle withdrawal spring; a needle body fixing seat connected to the needle seat for fixing the sensor implant needle; a first restraining arm arranged inside the support body; a second restraining arm arranged on the ejection base, the second restraining arm having a contracted state constrained by the inner side of the first restraining arm and a disengaged state disengaged from the constraint of the first restraining arm; a limiting protrusion for pressing down the needle seat is provided on the second restraining arm, and the limiting protrusion presses down and limits the needle seat when the second restraining arm is in the contracted state; After the needle is withdrawn, the second restraining arm cannot return to the inner side of the first restraining arm; The support body is also provided with a triggering portion, which is used to trigger the elastic hook arm to move outward so that the positioning structure is in a disengaged state; The trigger part includes: a firing button disposed on the upper part of the supporting body, used to press down the elastic hook arm and push the elastic hook arm to move outward; a button compression spring located between the supporting body and the firing button; a button positioning hook is disposed in the middle of the firing button, and the button positioning hook contacts the inner wall of the upper end of the supporting body; The launch button is also provided with an anti-trigger cover; The triggering part of the transmitting button envelops the triggering part of the supporting upper cover in the supporting body.

2. The implant tool needle feeding and retracting mechanism according to claim 1, characterized in that: A supporting contact is provided on one side of the upper end of the second restraint arm close to the first restraint arm.

3. The implant tool needle feeding and withdrawing mechanism according to claim 2, characterized in that: A first bevel end is arranged around the upper end of the needle seat, and a second bevel end cooperating with the first bevel end is arranged at the lower end of the limiting protrusion.

4. The implant tool needle feeding and withdrawing mechanism according to claim 1, characterized in that: An elastic hook arm is arranged inside the supporting body; a positioning structure cooperating with the elastic hook arm is arranged on the ejection base; the positioning structure has a positioning state of being placed on the elastic hook arm and a disengaged state of being disengaged from the elastic hook arm.

5. The implant tool needle feeding and withdrawing mechanism according to claim 4, characterized in that: The elastic hook arm includes: a hook arm body; a triggering protrusion arranged on the hook arm body and cooperating with the triggering part; a limiting hook body arranged on the hook arm body and located below the triggering protrusion, and the limiting hook body is used to limit the positioning structure.

6. An implantation tool, characterized in that: include: The implant tool needle feeding and withdrawing mechanism according to any one of claims 1 to 5.

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