Sensor sealing mechanism and implantation tool

Abstract

The utility model provides a sensor sealing mechanism. The sensor sealing mechanism comprises an emitter, a sensor body, a sensor sealing cover, an implantation needle group and a clutch tube, the sensor body and the sensor sealing cover are mounted on the transmitter; the implantation needle group comprises a needle head and an implantation needle, and the needle head abuts against the sensor sealing cover through a sealing piece; 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 bottom surface of the sensor; the clutch pipe is locked on the sensor or the emitter in a rotating mode, and the clutch pipe abuts against the needle head so that the sealing piece can be tightly pressed between the needle head and the sensor sealing cover. Meanwhile, the utility model further provides an implanting tool. Compared with the prior art, the sensor sealing mechanism and the implanting tool provided by the utility model can better guarantee the sealing effect on the sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a sensor sealing mechanism and an implantation tool. Background Art

[0002] The CGM system is a system used to monitor the blood sugar index of the human body. The CGM system in the prior art is to implant a blood sugar sensor under the skin. The enzyme on the sensor reacts with the subcutaneous tissue fluid to detect the blood sugar value, and the blood sugar value is sent to the terminal with the help of a transmitter, so that continuous blood sugar values ​​can be collected. For the CGM system, the implantation tool for implanting the blood sugar sensor is one of the indispensable devices. The implantation tool can be used to simply and quickly implant the blood sugar sensor and the transmitter into the human body.

[0003] In implant tools, a sealing mechanism is usually provided around the sensor to seal and protect the sensor, thereby preventing the sensor from being contaminated by pollutants such as dust and water.

[0004] However, the structure of the sealing mechanism in the prior art is not strong enough, and the sealing mechanism is prone to accidentally falling, which affects the sealing protection effect of the sensor.

[0005] Therefore, how to provide a sensor sealing mechanism to better ensure the sealing effect of the sensor is an urgent problem to be solved in the art. Utility Model Content

[0006] Aiming at the technical problem that the sealing mechanism for sealing the sensor in the implant tool of the prior art is not strong enough and is prone to accidental falling, thus affecting the sealing protection effect of the sensor, the utility model provides a sensor sealing mechanism, which can be more firmly installed around the sensor, is not prone to accidental falling, and can better ensure the sealing protection effect of the sensor.

[0007] A sensor sealing mechanism comprises a transmitter, a sensor, an implantation needle set, and a clutch tube;

[0008] The sensor is installed in the transmitter, and the sensor includes a sensor body and a sensor sealing cover arranged on the top of the sensor body;

[0009] The implantation needle assembly comprises a needle head and an implantation needle, wherein the needle head is in contact with the sensor sealing cover through a sealing member; one end of the implantation needle is connected to the needle head, and the other end penetrates into the sensor and exits from the bottom surface of the sensor;

[0010] The clutch tube is rotationally locked on the sensor or the transmitter, and the clutch tube abuts against the needle to press the sealing element between the needle and the sensor sealing cover.

[0011] Preferably, it also includes a stop cover;

[0012] The stop cover is detachably mounted on the clutch tube to limit the relative rotation between the needle and the clutch tube.

[0013] Preferably, the stop cover is installed on the top of the clutch tube;

[0014] A limiting block is arranged on the inner side of the stop cover, and along the radial direction of the needle, the limiting block extends into the area where the needle is located to block and limit the needle;

[0015] A shifting block is arranged on the outer side of the stop cover, and the shifting block is used to cooperate with the conversion sleeve in the implantation tool to separate the stop cover from the clutch tube.

[0016] Preferably, the needle is accommodated in the clutch tube.

[0017] Preferably, the clutch tube is rotationally locked on the snap fastener of the sensor sealing cover.

[0018] Preferably, it further comprises a sleeve, wherein the sleeve is rotationally locked on the sensor or the transmitter;

[0019] The portion of the sensor body extending out of the transmitter and the portion of the implant needle passing through the sensor are both located in the sleeve.

[0020] Preferably, the sleeve is rotationally locked on the transmitter lower cover of the transmitter, and a sleeve seal is provided between the sleeve and the transmitter lower cover.

[0021] Preferably, the transmitter comprises a transmitter lower cover, a transmitter upper cover, and a circuit board;

[0022] The transmitter upper cover is connected to the transmitter lower cover;

[0023] The circuit board is arranged in a space surrounded by the transmitter upper cover and the transmitter lower cover, and is connected to the sensor.

[0024] Preferably, the circuit board includes a first circuit board and a second circuit board;

[0025] The first circuit board is arranged on the transmitter cover;

[0026] The second circuit board is arranged on the lower cover of the transmitter;

[0027] The first circuit board and the second circuit board are connected via conductive adhesive.

[0028] An implantation tool, comprising the sensor sealing mechanism, a housing, a push piece, a drive button, a needle cap, and a needle withdrawal drive piece;

[0029] The shell is provided with a receiving space with an opening at one end;

[0030] The ejection member is received in the accommodation space and is snapped onto the housing;

[0031] The driving button is arranged on the housing to drive the ejection member to be released from the housing;

[0032] The launcher is detachably arranged on the ejection member;

[0033] The needle cap is buckled on the ejection member;

[0034] The needle withdrawal drive member is connected to the needle cap to provide a driving force to the needle cap to drive the implantation needle assembly to separate from the sensor.

[0035] Compared with the prior art, the sensor sealing mechanism provided by the utility model includes a transmitter, a sensor, an implant needle group, and a clutch tube; the sensor is installed in the transmitter, and the sensor includes a sensor body and a sensor sealing cover arranged on the top of the sensor body; the implant needle group includes a needle head and an implant needle, and the needle head abuts against the sensor sealing cover through a sealing member; one end of the implant needle is connected to the needle head, and the other end penetrates into the sensor and passes out from the bottom surface of the sensor; the clutch tube is rotated and locked on the sensor or the transmitter, and the clutch tube abuts against the needle head to press the sealing member between the needle head and the sensor sealing cover. The clutch tube is provided in the sensor sealing mechanism, and the clutch tube is rotated and locked on the sensor or the transmitter to press the needle head, and is fixed by rotation and locking, so that the clutch tube is not easy to fall off accidentally, thereby ensuring the pressing effect of the clutch tube on the sealing member, and better guaranteeing the sealing protection effect of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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.

[0037] Figure 1A schematic cross-sectional structure diagram of a sensor sealing mechanism provided in an embodiment;

[0038] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the sensor sealing mechanism shown;

[0039] Figure 3 for Figure 2 The schematic diagram of the exploded structure of the sensor sealing mechanism shown in another angle;

[0040] Figure 4 for Figure 2 The schematic diagram of the structure of the sensor sealing mechanism after assembly is shown;

[0041] Figure 5 for Figure 1 The structural schematic diagram of the sensor sealing cover shown;

[0042] Figure 6 A schematic diagram of the cross-sectional structure of an implantation tool provided in one embodiment. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] It should be noted that when a component is referred to as being "fixed on", "installed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is "connected" to another component, or a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0045] 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.

[0046] 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 technical features indicated. 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.

[0047] 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.

[0048] The utility model provides a sensor sealing mechanism, which includes a transmitter, a sensor, an implant needle group, and a clutch tube; the sensor is installed in the transmitter, and the sensor includes a sensor body and a sensor sealing cover arranged on the top of the sensor body; the implant needle group includes a needle head and an implant needle, and the needle head abuts against the sensor sealing cover through a sealing member; one end of the implant needle is connected to the needle head, and the other end penetrates into the sensor and passes out from the bottom surface of the sensor; the clutch tube is rotationally locked on the sensor or the transmitter, and the clutch tube abuts against the needle head to press the sealing member between the needle head and the sensor sealing cover. The clutch tube is provided in the sensor sealing mechanism, and the clutch tube is rotationally locked on the sensor or the transmitter to press the needle head, and is fixed by rotational locking, so that the clutch tube is not easy to fall off accidentally, thereby ensuring the pressing effect of the clutch tube on the sealing member, and better guaranteeing the sealing protection effect of the sensor.

[0049] Please refer to Figures 1 to 5 . The present embodiment provides a sensor sealing mechanism 100, which includes a transmitter 10, a sensor 20, an implantation needle group 30, and a clutch tube 40. The sensor 20 is installed in the transmitter 10, and the sensor 20 includes a sensor body 23 and a sensor sealing cover 24 arranged on the top of the sensor body 23. The implantation needle group 30 includes a needle head 31 and an implantation needle 32, and the needle head 31 is abutted against the sensor sealing cover 24 through a seal 50. One end of the implantation needle 32 is connected to the needle head 31, and the other end of the implantation needle 32 penetrates into the sensor 20 and passes out from the bottom surface of the sensor 20. Among them, the top surface of the sensor 20 and the bottom surface of the sensor 20 refer to two opposite surfaces on the sensor 20. For example, in one embodiment, as Figure 1 At the direction angle shown, the top surface of the sensor 20 is the surface of the sensor 20 located on the upper side, and the bottom surface of the sensor 20 is the surface of the sensor 20 located on the lower side.

[0050] The clutch tube 40 is rotationally locked on the sensor 20 or the transmitter 10. Rotational locking refers to a component being fastened to another component by rotation, so that by rotating the component forward, the component can be locked and connected to the other component, and by rotating the component backward, the component can be unlocked from the other component. Rotational locking can adopt any desired structure, such as a threaded structure, a rotating hanger structure, etc. For example, in one embodiment, Figure 5 As shown, a rotating hanging platform structure is used between the clutch tube 40 and the sensor 20 to realize rotational locking. A hanging platform 21 is provided on the sensor 20, and a clamping platform is provided on the clutch tube 40. When the clutch tube 40 is rotated forward, the clamping platform is correspondingly clamped into the hanging platform cavity 22 on the lower side of the hanging platform 21, so that the clutch tube 40 and the sensor 20 cannot be separated along the axial direction through the limit between the clamping platform and the hanging platform 21. When the clutch tube 40 and the sensor 20 need to be separated, the clutch tube 40 needs to be rotated in the opposite direction first to let the clamping platform detach from the hanging platform cavity 22, so that the clamping platform loses the obstruction of the hanging platform 21, and then the clutch tube 40 and the sensor 20 can be separated along the axial direction.

[0051] The clutch tube 40 abuts against the needle 31 to press the seal 50 between the needle 31 and the sensor sealing cover 24. That is, the clutch tube 40 is used to press the needle 31. When the clutch tube 40 is rotated and locked on the sensor 20 or the transmitter 10, the clutch tube 40 presses the needle 31 accordingly, thereby pressing the seal 50 through the needle 31 to ensure the sealing effect between the needle 31 and the sensor 20. When the clutch tube 40 is separated from the sensor 20 or the transmitter 10, the pressing effect on the needle 31 is lost.

[0052] It can be understood that the clutch tube 40 is installed on the sensor 20 or the transmitter 10 in a rotational locking manner, so that when the clutch tube 40 is separated from the sensor 20 or the transmitter 10, the clutch tube 40 needs to be rotated first, so that the clutch tube 40 can be better prevented from detaching from the sensor 20 or the transmitter 10 due to unexpected situations such as vibration, so that the clutch tube 40 can be more firmly installed on the sensor 20 or the transmitter 10, and the reliability of the clutch tube 40 pressing the needle 31 is better guaranteed.

[0053] Specifically, in one embodiment, the sealing member 50 is a silicone sealing member.

[0054] Preferably, in one embodiment, the sensor sealing mechanism 100 further includes a stop cover 60. The stop cover 60 is detachably mounted on the clutch tube 40 to limit the relative rotation between the needle 31 and the clutch tube 40. That is, the stop cover 60 is detachably mounted on the clutch tube 40, and the stop cover 60 extends into the needle 31, correspondingly blocking the needle 31, so that the needle 31 and the stop cover 60 do not rotate relative to each other. It is understandable that when the connection between the clutch tube 40 and the sensor 20 (or the transmitter 10) is loosened to a certain extent, the clutch tube 40 will not be able to press the needle 31, so that the sealing member 50 loses its sealing function, resulting in failure of the sealing of the upper part of the sensor 20. By setting the stop cover 60, this situation can be better avoided and the sealing effect can be better guaranteed.

[0055] Preferably, in one embodiment, the stop cover 60 is installed on the top of the clutch tube 40. A limit block 61 is provided on the inner side of the stop cover 60. Figure 1 The stopper 61 extends into the area where the needle 31 is located to block and limit the needle 31. That is, the stopper 61 extends into the needle 31 in the radial direction, so that the stopper 61 can be blocked by the stopper 61, thereby limiting the relative rotation between the needle 61 and the clutch tube 40. A shifting block 62 is provided on the outer side of the stop cover 60, and the shifting block 62 is used to cooperate with the conversion sleeve in the implant tool to separate the stop cover 60 from the clutch tube 40. Specifically, when the implant tool is used and the needle is withdrawn, the needle withdrawal spring will provide a driving force to drive the conversion sleeve to move, and the setting position of the shifting block 62 blocks the moving path of the conversion sleeve, so that the conversion sleeve will contact the shifting block 62 during the movement process, and the conversion sleeve drives the stop cover 60 to detach from the top of the clutch tube 40 by applying force to the shifting block 62. When the stop cover 60 is detached, the rotation limiter is lost between the clutch tube 40 and the needle 31 , and the clutch tube 40 can be detached from the sensor 20 (or the transmitter 10 ) by rotation.

[0056] Specifically, in one embodiment, the clutch tube 40 is provided with spiral rifling, and the conversion sleeve of the implantation tool is provided with a protrusion, which is correspondingly inserted into the spiral rifling. When the conversion sleeve moves to drive the stop cover 60 to disengage, the protrusion in the conversion sleeve moves along the spiral rifling, thereby driving the clutch tube 40 to rotate, and realizing the rotation unlocking of the clutch tube 40.

[0057] Preferably, in one embodiment, the needle 31 is accommodated in the clutch tube 40. That is, the needle 31 is sleeved inside the clutch tube 40, so that the clutch tube 40 can better ensure the pressing effect of the needle 31.

[0058] Preferably, in one embodiment, the clutch tube 40 is rotationally locked on the snap button 241 of the sensor sealing cover 24. That is, in this embodiment, the clutch tube 40 is specifically connected and installed with the snap button 241. Specifically, in one embodiment, the hanging platform 21 and the hanging platform cavity 22 are opened on the snap button 241.

[0059] Preferably, in one embodiment, the sensor sealing mechanism 100 further includes a sleeve 70. The sleeve 70 is rotationally locked on the sensor 20 or the transmitter 10. The portion of the sensor body 23 extending out of the transmitter 10 and the portion of the implant needle 32 passing through the sensor 20 are both located in the sleeve 70. That is, the sleeve 70 is rotationally locked on the lower portion of the sensor 20, and the exposed portions of the sensor 20 and the implant needle 32 can be sealed and accommodated by the sleeve 70. That is, in this embodiment, the sealing of the upper portion of the sensor 20 is achieved by the cooperation among the clutch tube 40, the needle head 31, and the sealing member 50, and the sealing of the lower portion of the sensor 20 is achieved by the sleeve 70.

[0060] Preferably, in one embodiment, the sleeve 70 is rotationally locked on the transmitter lower cover 11 of the transmitter 10, and a sleeve seal 80 is provided between the sleeve 70 and the transmitter lower cover 11. This structure can further improve the sealing effect of the sleeve 70 on the lower part of the sensor 20. Specifically, in one embodiment, the sleeve seal 80 is a silicone seal.

[0061] Preferably, in one embodiment, the transmitter 10 includes a transmitter lower cover 11, a transmitter upper cover 12, and a circuit board 13. The transmitter upper cover 12 is connected to the transmitter lower cover 11. The circuit board 13 is arranged in the space surrounded by the transmitter upper cover 12 and the transmitter lower cover 11, and the circuit board 13 is connected to the sensor 20. More preferably, the circuit board 13 includes a first circuit board 131 and a second circuit board 132. The first circuit board 131 is arranged on the transmitter upper cover 12, and the second circuit board 132 is arranged on the transmitter lower cover 11. The first circuit board 131 and the second circuit board 132 are connected by a conductive adhesive 14. Specifically, in one embodiment, the conductive adhesive 14 is integrally injected into the groove of the transmitter lower cover 11, and a cut is opened on the conductive adhesive 14, and the parts of the sensor 20 are inserted into the transmitter lower cover 11 horizontally, and the sensor 20 is inserted into the cut of the conductive adhesive 14 to achieve connection with the conductive adhesive 14. When the sensor 20 and the transmitter lower cover 11 are assembled, Figure 2 As shown, the entire assembly is assembled into the first circuit board 131 and the transmitter cover 12, so that the sensor 20 is connected to the first circuit board 131, and then irradiated with a UV curing lamp to form a complete transmitter assembly.

[0062] Please refer to Figure 6. At the same time, in one embodiment, an implantation tool 1000 is also provided, which includes the sensor sealing mechanism 100, a shell 200, a push piece 300, a drive button 400, a needle cap 500, and a needle withdrawal drive 600. The shell 200 is provided with a receiving space 210 with an opening at one end. The ejection piece 300 is accommodated in the receiving space 210 and is snapped onto the shell 200; the drive button 400 is arranged on the shell 200 to drive the ejection piece 300 to be disengaged from the shell 200; the transmitter 10 is detachably arranged on the ejection piece 300; the needle cap 500 is snapped onto the ejection piece 300; the needle withdrawal drive 600 is connected to the needle cap 500 to provide a driving force to the needle cap 500 to drive the implantation needle group 30 to separate from the sensor 20. When the implantation tool 1000 is used, the operator presses the driving button 400 to disengage the ejection member 300 from the housing 200, and the ejection member 300 drives the components in the sensor sealing mechanism 100, the needle cap 500, and the needle withdrawal drive member 600 to move. After moving to a certain distance, the implantation needle 32 penetrates the patient's skin, and the sensor 20 detects the blood sugar in the blood and converts and transmits the signal through the transmitter 10. After the implantation needle 32 penetrates, the needle withdrawal drive member 600 drives the needle cap 500 to move up and reset, and the needle cap 500 drives the conversion sleeve to move up during the upward movement. The conversion sleeve first removes the stop cover 60 from the clutch tube 40, and then drives the clutch tube 40 to rotate, so that the clutch tube 40 is unlocked, and finally drives the needle 31, the implantation needle 32, and the clutch tube 40 to move up together, completing a needle withdrawal operation.

[0063] The above is only an implementation method of the present invention. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements are all within the protection scope of the present invention.

Claims

1. A sensor sealing mechanism, characterized in that: It includes a transmitter, a sensor, an implantation needle set, and a clutch tube; The sensor is installed in the transmitter, and the sensor includes a sensor body and a sensor sealing cover arranged on the top of the sensor body; The implantation needle assembly comprises a needle head and an implantation needle, wherein the needle head is in contact with the sensor sealing cover through a sealing member; one end of the implantation needle is connected to the needle head, and the other end penetrates into the sensor and exits from the bottom surface of the sensor; The clutch tube is rotationally locked on the sensor or the transmitter, and the clutch tube abuts against the needle to press the sealing element between the needle and the sensor sealing cover.

2. The sensor sealing mechanism according to claim 1, characterized in that: Also includes a stop cover; The stop cover is detachably mounted on the clutch tube to limit the relative rotation between the needle and the clutch tube.

3. The sensor sealing mechanism according to claim 2, characterized in that: The stop cover is installed on the top of the clutch tube; A limiting block is arranged on the inner side of the stop cover, and along the radial direction of the needle, the limiting block extends into the area where the needle is located to block and limit the needle; A shifting block is arranged on the outer side of the stop cover, and the shifting block is used to cooperate with the conversion sleeve in the implantation tool to separate the stop cover from the clutch tube.

4. The sensor sealing mechanism according to claim 1, characterized in that: The needle is accommodated in the clutch tube.

5. The sensor sealing mechanism according to claim 1, characterized in that: The clutch tube is rotationally locked on the snap buckle of the sensor sealing cover.

6. The sensor sealing mechanism according to claim 5, characterized in that: Also includes a sleeve, the sleeve is rotationally locked on the sensor or the transmitter; The portion of the sensor body extending out of the transmitter and the portion of the implant needle passing through the sensor are both located in the sleeve.

7. The sensor sealing mechanism according to claim 6, characterized in that: The sleeve is rotationally locked on the transmitter lower cover of the transmitter, and a sleeve seal is arranged between the sleeve and the transmitter lower cover.

8. The sensor sealing mechanism according to claim 5, characterized in that: The transmitter comprises a transmitter lower cover, a transmitter upper cover, and a circuit board; The transmitter upper cover is connected to the transmitter lower cover; The circuit board is arranged in a space surrounded by the transmitter upper cover and the transmitter lower cover, and is connected to the sensor.

9. The sensor sealing mechanism according to claim 8, characterized in that: The circuit board comprises a first circuit board and a second circuit board; The first circuit board is arranged on the transmitter cover; The second circuit board is arranged on the lower cover of the transmitter; The first circuit board and the second circuit board are connected via conductive adhesive.

10. An implantation tool, characterized in that: It comprises a sensor sealing mechanism, a housing, a push piece, a drive button, a needle cap, and a needle withdrawal drive piece according to any one of claims 1 to 9; The shell is provided with a receiving space with an opening at one end; The ejection member is received in the accommodation space and is snapped onto the housing; The driving button is arranged on the housing to drive the ejection member to be released from the housing; The launcher is detachably arranged on the ejection member; The needle cap is buckled on the ejection member; The needle withdrawal drive member is connected to the needle cap to provide a driving force to the needle cap to drive the implantation needle assembly to separate from the sensor.

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