A needle aid for a subcutaneous implantable sensor

Abstract

The present invention relates to a needle assisting device for a subcutaneous implantable sensor, which includes a guiding needle and a needle assisting seat. A needle assisting hole is provided at the bottom of the needle assisting seat; a lifting seat is slidably installed in the needle assisting hole, the subcutaneous implantable sensor is movably installed at the bottom of the lifting seat, the guiding needle is fixed on the lifting seat and passes through the subcutaneous implantable sensor, and a thin film type flexible microneedle is inserted into the guiding needle; a clock spring driving device is located on one side of the needle assisting hole and is movably connected to the lifting seat for driving the lifting seat to implant the subcutaneous implantable sensor; a releasing device is installed on the needle assisting seat and is connected to the clock spring driving device for releasing the clock spring driving device. The needle assisting device for a subcutaneous implantable sensor provided by the present invention uses a clock spring drive and releases the clock spring through a releasing device, with a simple structure, few parts, low cost, convenient use, and good stability.

Description

Technical Field

[0001] The present invention relates to a subcutaneous implant sensor insertion device, in particular, an assistant needle device for a subcutaneous implant sensor. Background Art

[0002] Subcutaneous implantable sensors are a type of sensors used for measuring subcutaneous analytes or transcutaneous monitoring. Generally, they are based on electrochemical sensors or optical sensors. By measuring and analyzing the target analytes in subcutaneous tissue fluid, the presence or concentration data of the analytes can be obtained. Such sensors need to be implanted into the subcutaneous target site, can perform continuous and real-time monitoring, and periodically upload data to the host computer or cloud server through an external transmitter.

[0003] A typical subcutaneous implantable sensor, such as a continuous glucose monitoring sensor, is a sensor implanted into subcutaneous tissue that can continuously measure the glucose concentration and changes in biological tissue fluid. When glucose in the tissue fluid diffuses around the sensor, the conversion functional sensitive unit of the sensor can convert the blood glucose concentration into an electrical signal and then digitize it for acquisition. After the data is processed by a certain algorithm, it can be displayed as the blood glucose concentration.

[0004] Currently, more and more continuous glucose sensors have abandoned the form of hard steel needles and adopted thin-film flexible microneedle sensors based on flexible substrates. The advantages of such flexible sensors are obvious and can provide a better user experience. Especially after implantation, the flexible microneedles can bend to a certain extent with the limb movement of the user, which can greatly reduce the physical damage to the implantation site and at the same time greatly relieve the foreign body sensation of the user. However, due to the softness of such flexible microneedle sensors, during the implantation process, their own strength cannot maintain the force to pierce the skin, resulting in their inability to be directly implanted into the subcutaneous site. The implantors and implantation methods applicable to hard steel needle sensors are no longer applicable.

[0005] Such flexible microneedle sensors often need to use an assistant needle device to achieve subcutaneous implantation. The internal of the described type of assistant needle device will have a hard, hollow, semi-open needle. The implantation process is generally as follows:

[0006] Before implantation, the sensor will be placed in the needle to protect the sensor from being damaged by extrusion, rubbing, etc. during implantation;

[0007] During implantation, the needle will pierce the patient's skin and then be inserted to an appropriate implantation depth. At this time, the sensor will enter under the skin together with the needle and reach the appropriate implantation depth;

[0008] Then, the position of the sensor will be fixed, and the needle will be retracted reversely and withdrawn outside the skin. The sensor will stay at the subcutaneous implantation site of the user while the needle is withdrawn.

[0009] The needle adopts a semi-open design to facilitate the withdrawal of the needle after implantation, avoiding the connection components at the rear end of the sensor and smoothly completing the needle withdrawal without pulling out the sensor together.

[0010] Related patents for this type of needle aid include, for example:

[0011] Analyte sensor, EP 2 499 969 B1; Medical device inserters and processes of inserting and using medical devices, EP3123934A1; Needle protection device for subcutaneous implantable sensors, CN104162205B; Subcutaneous implantable sensor inserter and method, CN107106090B; Needle aid for percutaneous implantable sensors and medical system, CN211704640U; Needle feeding and withdrawal mechanism and implant tool for an implant tool, CN110279422A; Elastic implant device for biosensor electrodes and its use method, CN108056778A; Implant device for a novel implantable biosensor, CN112450918A.

[0012] The above-mentioned needle aid with a rigid, hollow, semi-open needle solves the implantation problems of flexible microneedle subcutaneous implantable sensors or subcutaneous infusion catheters, but there are still inevitable problems and disadvantages:

[0013] The needle in this type of needle aid will significantly increase the size (such as the outer diameter) during the implantation of subcutaneous implantable sensors or devices. The needle often adopts a rigid, hollow structure to place the sensor in it, and it is necessary to ensure smooth sliding between the needle and the sensor. Therefore, its inner diameter needs to be larger than the diameter or maximum width of the sensor. Considering that the needle has a certain thickness, and due to mechanical strength requirements and process limitations, it is difficult to minimize the needle wall thickness. Therefore, when using this type of needle aid, the size of the outer diameter of the needle, that is, the size of the incision for puncturing the skin during implantation, is often more than 70% larger than the diameter of the sensor itself. For example, for a sensor with a diameter of 0.4mm, the inner diameter of the needle needs to be 0.5mm to ensure a certain sliding gap, and the needle wall thickness is 0.1mm. Therefore, the outer diameter of the needle needs to be 0.7mm, which is an additional 75% larger than the diameter of the sensor itself (0.4mm).

[0014] After the needle punctures the skin and implants, a needle withdrawal action is required. During the process of the needle withdrawing from the skin, it will inevitably cause secondary damage to the skin tissue, further expanding the wound surface, resulting in a higher risk of infection and difficulty in recovery. At the same time, the pain and discomfort caused by this needle withdrawal process will also greatly reduce the user experience.

[0015] During the process of needle retraction, there is a certain possibility that the sensor cannot slide smoothly inside the needle, so it will be pulled back by the needle, deviate from the target implantation position, and even exit outside the skin, resulting in implantation failure. And the user needs to perform implantation again, bringing an extremely bad user experience.

[0016] Based on the fact that the implantation process of such a needle assisting device is relatively complex and cumbersome, the needle assisting device has a complex internal structure. For example, the needle assisting device needs to have a space for accommodating the needle and a mechanical structure for fixing the needle; a mechanism structure for realizing needle retraction needs to be designed; the needle retraction needs to be as fast as possible and the angle needs to be stable, etc. Therefore, it is inevitable to increase its structural complexity, thereby increasing the probability of problems occurring during the implantation process. At the same time, it also increases the complexity of production and manufacturing, as well as the complexity of user use.

[0017] It is also due to the complex mechanical structure of such a needle assisting device that it will significantly increase the types and quantities of its components, thereby greatly increasing its production cost. Summary of the Invention

[0018] To solve the above problems, the present invention provides a needle assisting device for subcutaneous implanting a sensor, which has a simple structure, few parts, and low cost. The specific technical solution is as follows:

[0019] A needle assisting device for subcutaneous implanting a sensor, including a guiding needle, further including: a needle assisting seat, a needle assisting hole is provided at the bottom of the needle assisting seat; a lifting seat, the lifting seat is slidably installed in the needle assisting hole, the subcutaneous implanting sensor is movably installed at the bottom of the lifting seat, the guiding needle is fixed on the lifting seat and passes through the subcutaneous implanting sensor, and a thin film type flexible micro needle is inserted into the guiding needle; a spring drive device, the spring drive device is located on one side of the needle assisting hole and is movably connected to the lifting seat for driving the lifting seat to implant the subcutaneous implanting sensor; and a release device, the release device is installed on the needle assisting seat and is connected to the spring drive device for releasing the spring drive device.

[0020] Preferably, the spring drive device includes: a drive seat, the drive seat is rotatably installed on the needle assisting seat, a drive shaft is provided on the drive seat, the drive shaft is slidably connected to the lifting seat for driving the lifting seat to lift and lower, the release device is movably connected to the drive seat; and a drive spring, the drive spring is movably installed on the drive seat, and one end is connected to the drive seat and the other end is fixed on the needle assisting seat for driving the drive seat to rotate.

[0021] Further, a rotating groove and a spring barrel are provided on the needle assisting seat. The spring barrel is arranged at the bottom of the rotating groove, and the driving seat is rotatably installed in the rotating groove. A fixed slot is provided on the spring barrel, and the other end of the driving spring is inserted into the fixed slot.

[0022] Preferably, the releasing device includes a release button which is movably inserted into the top of the needle assisting seat and is provided with a guiding post, and a release seat which is slidably installed on the guiding post. A release block is provided on the release seat, and a release groove is provided on the release block. The release block is movably abutted against the driving block of the spring driving device, and the driving block is matched with the release groove. After the release button drives the release seat to descend, the driving block passes through the release groove.

[0023] Further, positioning protrusions are provided on both sides of the release seat, and upper positioning grooves and lower positioning grooves are provided on the needle assisting seat. The positioning protrusions are movably inserted into the upper positioning grooves or the lower positioning grooves to limit the position of the release seat.

[0024] Preferably, a pushing block is provided on the release seat, and a pushing inclined surface is provided on the pushing block. A pushing plate is provided on the release button, and a limiting groove is provided on the pushing plate. The pushing block is movably inserted into the limiting groove, and the pushing inclined surface is arranged opposite to the limiting groove. The pushing inclined surface is used to make the pushing block slide above the pushing plate when the release button is pulled upward, and the release button drives the release seat to descend through the pushing plate and the pushing block.

[0025] Wherein, an upper and lower lifting groove is provided on the top of the needle assisting seat, and a limiting boss is provided on the release seat. The limiting boss is movably inserted into the upper and lower lifting groove.

[0026] Further, an anti - detachment groove is provided on the release seat, and an anti - detachment hook is provided on the guiding post. The anti - detachment hook is arranged opposite to the anti - detachment groove.

[0027] Preferably, a sensor groove and movable clamping plates are provided at the bottom of the lifting seat. The movable clamping plates are located on both sides of the sensor groove. A swinging groove is provided between the movable clamping plates and the lifting seat. A plurality of connecting rods are provided on the movable clamping plates, and the connecting rods are movably inserted into the connecting grooves on both sides of the subcutaneous implantable sensor.

[0028] Further, a fixing hole and a fixing rod are provided on the lifting seat. The guiding needle is installed in the fixing hole, and the top of the guiding needle abuts against the fixing rod.

[0029] Preferably, a pressing groove for pressing is provided on the releasing device, and grasping grooves for grasping are provided on both sides of the top of the needle assisting seat.

[0030] Preferably, a needle assisting ring is provided at the bottom of the needle assisting seat, and a needle assisting hole is provided on the needle assisting ring.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The needle assisting device for a subcutaneous implantable sensor provided by the present invention is driven by a spiral spring, and the spiral spring is released through a release device, with a simple structure, few parts, low cost, convenient use, and good stability. Description of the Drawings

[0033] Figure 1 is a schematic structural diagram of a needle assisting device for a subcutaneous implantable sensor;

[0034] Figure 2 is a schematic structural diagram after hiding the left seat;

[0035] Figure 3 is Figure 2 the front view of

[0036] Figure 4 is an exploded view of a needle assisting device for a subcutaneous implantable sensor;

[0037] Figure 5 is a schematic structural diagram of the left seat;

[0038] Figure 6 is a schematic structural diagram of the right seat;

[0039] Figure 7 is a schematic structural diagram of the release button;

[0040] Figure 8 is a schematic structural diagram of the release seat;

[0041] Figure 9 is a schematic structural diagram of the base;

[0042] Figure 10 is a schematic structural diagram of the driving spiral spring;

[0043] Figure 11 is a schematic structural diagram of the driving seat;

[0044] Figure 12 is the front view of the driving seat;

[0045] Figure 13 is a perspective view of the lifting seat from the first perspective;

[0046] Figure 14 is a perspective view of the lifting seat from the second perspective;

[0047] Figure 15 is a sectional view of the lifting seat;

[0048] Figure 16 is a cross-sectional view of the guiding needle;

[0049] Figure 17 is a top view of the subcutaneous implantable sensor;

[0050] Figure 18 is a front view of the subcutaneous implantable sensor. Detailed implementation manners

[0051] The present invention will be further described below in conjunction with the accompanying drawings.

[0052] As Figures 1 to 18 shown, a needle assisting device for a subcutaneous implantable sensor includes a guiding needle 8, a needle assisting seat, a lifting seat 5, a spring driving device and a releasing device. The releasing device releases the spring driving device, the spring driving device drives the lifting seat 5 to lift and lower, and the lifting seat 5 completes the implantation of the subcutaneous implantable sensor 9 by lifting and lowering in the needle assisting seat 8. The overall structure is simple, compact, with few parts, easy to use and good in stability.

[0053] The needle assisting seat includes a left seat 1, a right seat 2 and a base 20. The left seat 1 and the right seat 2 are connected together by a buckle and a clamping groove. A needle assisting ring 202 is provided on the base 20, and a needle assisting hole 201 is provided on the needle assisting ring 202. The base 20 is fixed to the bottoms of the left seat 1 and the right seat 2 by a buckle and a clamping groove. The needle assisting ring 202 is used to increase the contact area with the human body, and can provide a better touch when contacting the skin during use, reduce the situation of implantation failure caused by improper pressing or uneven force, and improve the stability.

[0054] On both sides of the top of the needle assisting seat, symmetrically arranged grasping grooves 10 are provided, and the grasping grooves 10 facilitate pinching the needle assisting device with fingers.

[0055] On the top of the left seat 1, a left lifting groove 16 and a left positioning hole 14, an upper left positioning groove 18 and a lower left positioning groove 17 which are all arranged on the side surface of the left lifting groove 16 are provided. A rotating groove 11 and a spring column 12 are further provided on the left seat 1. The spring column 12 is arranged at the bottom of the rotating groove 11, and a fixed slot 13 is provided on the spring column 12.

[0056] On the top of the right seat 2, a right lifting groove 26 and a right positioning hole 24, an upper right positioning groove 28 and a lower right positioning groove 27 which are all arranged on the side surface of the right lifting groove 26 are provided. A lower lifting groove 21 is further provided on the right seat 2. The lower lifting groove 21 is located below the right lifting groove 26, and the lower lifting groove 21 communicates with the needle assisting hole 201. The left lifting groove 16 and the right lifting groove 26 form an upper lifting groove.

[0057] The release device includes a release button 3 and a release seat 4, and both the release button 3 and the release seat 4 are movably inserted into the upper lifting groove. Positioning posts 35 are provided on both sides of the release button 3, and the positioning posts 35 are respectively inserted into the left positioning hole 14 and the right positioning hole 24, so that the release button 3 moves up and down in the vertical direction. The release button 3 is also provided with a guiding post 32, and the guiding post 32 is located between the two positioning posts 35. A release hole 46 is provided at the top of the release seat 4, and the release hole 46 is slidably inserted onto the guiding post 32. The upper lifting groove and the release hole 46 improve the radial bearing capacity of the release seat 4 and jointly improve the stability of the release seat 4. A release block 41 is provided on one side of the bottom of the release seat 4, and a "T"-shaped release groove 42 is provided on the release block 41. A release pressing groove 36 is provided at the top of the release button 3, and the release pressing groove 36 facilitates the positioning of the finger and is convenient for pressing the release button 3.

[0058] The coil spring driving device includes a driving seat 6 and a driving coil spring 7. A driving block 61 is provided at the top of the driving seat 6, and the driving block 61 is "T"-shaped. A coil spring groove 64 is provided at one end of the driving seat 6, and a driving shaft 62 is provided at the other end. The driving shaft 62 is located at the edge of the driving seat 6, forming an eccentric shaft. A coil spring insertion plate 63 is also provided on the driving seat 6. The driving seat 6 is rotatably installed in the rotating groove 11. The coil spring post 12 is movably inserted into the coil spring groove 64, and the driving coil spring 7 is movably inserted into the coil spring groove 64. A fixed card slot 72 is provided at one end of the driving coil spring 7, and a fixed folding edge 71 is provided at the other end. The fixed card slot 72 is inserted onto the coil spring insertion plate 63, and the fixed folding edge 71 is inserted into the fixed slot 13, and the driving coil spring 7 drives the driving seat 6 to rotate.

[0059] The release block 41 is movably abutted against the driving block 61 of the driving seat 6, and the driving block 61 is matched with the release groove 42; after the release button 3 drives the release seat 4 to descend, the driving block 61 passes through the release groove 42.

[0060] In the initial state, in order to prevent misoperation or the situation that the release seat 4 automatically descends due to vibration, etc., a pushing block 44 is provided on the release seat 4, and a pushing inclined surface 45 is provided on the pushing block 44; a pushing plate 33 is provided on the release button 3, and a limiting groove 331 is provided on the pushing plate 33. The pushing block 44 is movably inserted into the limiting groove 331, and the pushing inclined surface 45 is arranged opposite to the limiting groove 331. The pushing inclined surface 45 is used to make the pushing block 44 slide above the pushing plate 33 when the release button 3 is pulled up, and the release button 3 drives the release seat 4 to descend through the pushing plate 33 and the pushing block 44. First, pull up the release button 3, and then press down the release button 3 to release the coil spring driving device, effectively preventing misoperation and ensuring the reliability of transportation and storage. The pushing plate 33 and the pushing block 44 also provide support in the length direction for the descent of the release block 41, so as to ensure that the release button 3 can push the release groove 42 downward to a position opposite to the driving block 61.

[0061] To limit the position of the release seat 4 and prevent the release seat 4 from detaching from the needle assisting seat, a limiting boss 48 is provided on the release seat 4. The limiting boss 48 is movably inserted into the upper and lower lifting grooves, and the release seat 4 can only lift and lower within the upper and lower lifting grooves.

[0062] To prevent the release button 3 from being pulled out, an anti - detachment groove 47 is provided on the release seat 4, and an anti - detachment hook 34 is provided on the guiding column 32. The anti - detachment hook 34 and the anti - detachment groove 47 are arranged oppositely. When pulling out the release button 3, after the pushing block 44 rises above the pushing plate 33, the anti - detachment hook 34 abuts against the anti - detachment groove 47 to achieve the positioning of the release button 3.

[0063] To prevent the release seat 4 from freely lifting and lowering and maintain the accuracy of the position, positioning protrusions 43 are provided on both sides of the release seat 4. An opening groove is provided between the positioning protrusion 43 and the release seat 4, thus having better elasticity. The positioning protrusions 43 and the upper positioning groove and the lower positioning groove on the needle assisting seat are arranged oppositely. The upper positioning groove includes a left upper positioning groove 18 and a right upper positioning groove 28, and the lower positioning groove includes a left lower positioning groove 17 and a right lower positioning groove 27. The positioning protrusions 43 are movably inserted into the upper positioning groove or the lower positioning groove to limit the position of the release seat 4. The left upper positioning groove 18 and the right upper positioning groove 28 are used to limit the release seat 4 in the initial state, so that the driving block 61 abuts against the release block 41; the left lower positioning groove 17 and the right lower positioning groove 27 are used to limit the release seat 4 in the release state, so that the driving block 61 can accurately pass through the release groove 42.

[0064] The lifting seat 5 is slidably inserted into the lower lifting groove 21. The top of the lifting seat 5 is provided with a waist-shaped driving groove 51, and the driving groove 51 is horizontally arranged. The driving shaft 62 is movably inserted into the driving groove 51. The bottom of the lifting seat 5 is provided with a sensor groove 57 and a movable clamping plate 54. The movable clamping plate 54 is located on both sides of the sensor groove 57. A swing groove 541 is provided between the movable clamping plate 54 and the lifting seat 5. Both ends of the movable clamping plate 54 are provided with connecting rods 55. The lifting seat 5 is also provided with a fixing hole 52 and a fixing rod 53. The fixing hole 52 is arranged at the bottom of the sensor groove 57 and is a through hole. The fixing rod 53 is located above the fixing hole 52. The guiding needle 8 is installed in the fixing hole 52 and fixed in the fixing hole 52 by UV glue. The top of the guiding needle 8 abuts against the fixing rod 53, and the fixing rod 53 is used to position the direction and position of the guiding needle 8. The subcutaneous implantable sensor 9 is movably installed in the sensor groove 57. The guiding needle 8 passes through the guiding hole 91 of the subcutaneous implantable sensor 9, and the thin-film flexible micro needle 92 of the subcutaneous implantable sensor 9 is inserted into the guiding needle 8. Connecting grooves 93 are provided on both sides of the subcutaneous implantable sensor 9. The connecting rods 55 are movably inserted into the connecting grooves 93. A lower release inclined surface 56 is provided on the connecting rod 55, and an upper release inclined surface 94 opposite to the lower release inclined surface 56 is provided on the connecting groove 93. The swing groove 541 enables the movable clamping plate 54 to have elasticity. After the subcutaneous implantable sensor 9 adheres to the human body, the lower release inclined surface 56 and the upper release inclined surface 94 enable the lifting seat 5 to be easily separated from the subcutaneous implantable sensor 9, preventing the subcutaneous implantable sensor 9 from being driven away from the human body.

[0065] In the initial state, the positioning protrusion 43 of the release seat 4 is inserted into the upper left positioning groove 18 and the upper right positioning groove 28. The push block 44 is movably inserted into the limit groove 331. The driving block 61 abuts against the release block 41. At this time, the driving coil spring 7 has a certain pre-tightening force; the lifting seat 5 is at the highest position of the lower lifting groove 21. The guiding needle 8 is located in the lower lifting groove 21 and above the needle assisting hole 201, and the driving shaft 62 is also at the highest position.

[0066] When implanting the sensor, the needle ring 202 at the bottom of the needle seat is pressed against the human body, the release button 3 is pinched, and the release button 3 is pulled up, the release button 3 drives the push plate 33 to move upward, the release seat 4 is stuck in the upper lifting groove, and the push inclined surface 45 deforms the push plate 33, so that the push plate 33 slides smoothly to the top of the push block 44, and then the finger is pressed in the release pressing groove 36, and the finger squeezes the release button 3 downward, the push plate 33 drives the release seat 4 to descend through the push block 44, and the release seat 4 drives the release block 41 to descend, so that the release groove 42 is opposite to the drive block 61, the positioning protrusion 43 is inserted in the lower left positioning groove 17 and the lower right positioning groove 27, and the drive seat 6 is on the driving coil spring 7. The driving block 61 rotates under the action, and the driving shaft 62 passes through the release groove 42, and the driving shaft 62 rotates to the lowest point. The driving shaft 62 drives the lifting seat 5 to descend first through the driving groove 51, and the lifting seat 5 presses the subcutaneous implant sensor 9 onto the human body. The double-sided tape on the subcutaneous implant sensor 9 is attached to the human body. At the same time, the guide needle 8 is inserted into the human body, and then the driving shaft 62 continues to move to the highest point. The driving shaft 62 drives the lifting seat 5 to rise, and the connecting rod 55 moves to both sides through the lower release slope 56 and the upper release slope 94 to release the subcutaneous implant sensor 9. The guide needle 8 follows the lifting seat 5 to rise, and the thin film flexible microneedle 92 of the subcutaneous implant sensor 9 remains in the human body, completing the implantation of the subcutaneous implant sensor 9.

[0067] It has the following advantages:

[0068] 1. Compared with other products, it has a simple structure, easy assembly, simple and convenient use. While achieving the same function, it has higher stability and lower cost;

[0069] 2. The single coil spring body is used to realize the implantation and withdrawal of the guide needle, with simple structure, few parts and good stability;

[0070] 3. The release button is first pulled to unlock, and then pressed to release, which is highly reliable and can prevent misoperation; at the same time, the locking and releasing functions are achieved with the least number of parts, and the overall integrity of the product before and after use can be guaranteed, and the discarding of parts can be avoided, which is more environmentally friendly and easier and more convenient to use;

[0071] 4. Simple structure and easy operation, which reduces the operation steps for customers and improves the customer's usage experience.

[0072] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A needle assisting device for a subcutaneous implantable sensor, comprising a guiding needle (8), characterized in that, it further comprises: A needle assisting seat, the bottom of the needle assisting seat is provided with a needle assisting hole (201); A lifting seat (5), the lifting seat (5) is slidably installed in the needle assisting hole (201), the subcutaneous implantable sensor (9) is movably installed at the bottom of the lifting seat (5), the guiding needle (8) is fixed on the lifting seat (5), passes through the subcutaneous implantable sensor (9), and the thin film type flexible microneedle (92) is inserted into the guiding needle (8); A clock spring driving device, the clock spring driving device is located on one side of the needle assisting hole (201) and is movably connected to the lifting seat (5) for driving the lifting seat (5) to implant the subcutaneous implantable sensor (9); and A releasing device, the releasing device is installed on the needle assisting seat and is connected to the clock spring driving device for releasing the clock spring driving device; The clock spring driving device includes: A driving seat (6), the driving seat (6) is rotatably installed on the needle assisting seat, a driving shaft (62) is provided on the driving seat (6), the driving shaft (62) is slidably connected to the lifting seat (5) for driving the lifting seat (5) to lift and lower, and the releasing device is movably connected to the driving seat (6); and A driving clock spring (7), the driving clock spring (7) is movably installed on the driving seat (6), one end is connected to the driving seat (6), and the other end is fixed on the needle assisting seat for driving the driving seat (6) to rotate.

2. The needle assisting device for a subcutaneous implantable sensor according to claim 1, characterized in that, a rotating groove (11) and a clock spring column (12) are provided on the needle assisting seat, the clock spring column (12) is arranged at the bottom of the rotating groove (11), and the driving seat (6) is rotatably installed in the rotating groove (11); a fixed slot (13) is provided on the clock spring column (12), and the other end of the driving clock spring (7) is inserted into the fixed slot (13).

3. The needle assisting device for a subcutaneous implantable sensor according to claim 1, characterized in that, The releasing device includes: A release button (3), the release button (3) is movably inserted into the top of the needle assisting seat, and a guiding column (32) is provided on the release button (3); and A release seat (4), the release seat (4) is slidably installed on the guiding column (32), a release block (41) is provided on the release seat (4), a release groove (42) is provided on the release block (41), the release block (41) is movably abutted against the driving block (61) of the clock spring driving device, and the driving block (61) is matched with the release groove (42); After the release button (3) drives the release seat (4) to descend, the driving block (61) passes through the release groove (42).

4. The needle assisting device for a subcutaneous implantable sensor according to claim 3, characterized in that, a pushing block (44) is provided on the release seat (4), and a pushing inclined surface (45) is provided on the pushing block (44); A push plate (33) is provided on the release button (3). A limit groove (331) is provided on the push plate (33). The push block (44) is movably inserted into the limit groove (331). The push inclined surface (45) is arranged opposite to the limit groove (331). When the push inclined surface (45) is used to lift the release button (3) upward, the push block (44) slides above the push plate (33). The release button (3) pushes the release seat (4) to descend through the push plate (33) and the push block (44).

5. The needle assisting device for a subcutaneous implantable sensor according to claim 4, wherein, a rising and falling groove is provided at the top of the needle assisting seat. A limit boss (48) is provided on the release seat (4). The limit boss (48) is movably inserted into the rising and falling groove.

6. The needle assisting device for a subcutaneous implantable sensor according to claim 4, wherein, a anti - detachment groove (47) is provided on the release seat (4). An anti - detachment hook (34) is provided on the guiding column (32). The anti - detachment hook (34) is arranged opposite to the anti - detachment groove (47).

7. The needle assisting device for a subcutaneous implantable sensor according to claim 3, wherein, Positioning protrusions (43) are provided on both sides of the release seat (4). Upper and lower positioning grooves are provided on the needle assisting seat. The positioning protrusions (43) are movably inserted into the upper positioning groove or the lower positioning groove to define the position of the release seat (4).

8. The needle assisting device for a subcutaneous implantable sensor according to any one of claims 1 to 7, wherein, A sensor groove (57) and movable clamping plates (54) are provided at the bottom of the lifting seat (5). The movable clamping plates (54) are located on both sides of the sensor groove (57). A swing groove (541) is provided between the movable clamping plates (54) and the lifting seat (5). A plurality of connecting rods (55) are provided on the movable clamping plates (54). The connecting rods (55) are movably inserted into the connecting grooves (93) on both sides of the subcutaneous implantable sensor (9).

9. The needle assisting device for a subcutaneous implantable sensor according to claim 8, wherein, A fixing hole (52) and a fixing rod (53) are provided on the lifting seat (5). The guiding needle (8) is installed in the fixing hole (52). The top of the guiding needle (8) abuts against the fixing rod (53).

10. The needle assisting device for a subcutaneous implantable sensor according to any one of claims 1 to 7, wherein, A release pressing groove (36) for pressing is provided on the release device. Grabbing grooves (10) for grabbing are provided on both sides of the top of the needle assisting seat.

11. The needle assisting device for a subcutaneous implantable sensor according to any one of claims 1 to 7, wherein, A needle assisting ring (202) is provided at the bottom of the needle assisting seat. A needle assisting hole (201) is provided on the needle assisting ring (202).

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