Encryption microneedle for self hair transplantation

Abstract

The densification microneedle comprises a first clamping part, a second clamping part and a needle body, the needle body is arranged between the first clamping part and the second clamping part, the first clamping part and the second clamping part are each provided with a finger stall used for being arranged on the finger of an operator in a sleeving mode, the first clamping part comprises a first clamping piece, and the second clamping piece comprises a second clamping piece. The first clamping part comprises a first clamping piece, the second clamping part comprises a second clamping piece, the first clamping piece and the second clamping piece are both arranged to be arc sheet-shaped pieces, the inner concave faces of the first clamping piece and the second clamping piece are attached and fixed to the fingerstall, clamping assemblies are arranged in the centers of the outer convex faces of the first clamping piece and the second clamping piece, and limiting grooves are formed in the clamping assemblies; the needle body is arranged in the limiting groove; the first clamping piece and the second clamping piece which are used for clamping the needle body are arranged, and the relative positions of the needle body and the first clamping piece and the second clamping piece are stable through the clamping assembly, so that the needle body is prevented from shifting and sliding due to stress in the encryption process, and the working intensity of doctors is greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of medical device research, and in particular to an encrypted microneedle used for autologous hair transplantation. Background Art

[0002] In today's society, hair loss is common among the population, and some people are severely bald. Lack of sufficient hair or baldness has an adverse effect on one's image, causing this group of people to face more inconvenience and distress in life and work. Among the various treatment technologies for hair loss, hair follicle transplantation surgery is the most widely used.

[0003] Among them, microneedle densification hair transplantation is a hair transplantation method in hair follicle transplantation surgery. It is usually performed by using a syringe needle to densify the hair transplantation. The microneedle first pokes holes in the densified area, and then implants healthy hair follicles, which can increase the density of the original hair and has an excellent hair growth treatment effect. However, when using microneedles for densification surgery, the holes need to be pierced very carefully, because the holes may damage the original hair in the densified area. In order to reduce damage, the surgeon stably clamps the syringe needle and carefully performs densification, but the syringe needle will be offset and slide between the fingers due to force during densification. The surgeon needs to maintain a large force for a long time to stabilize the position of the syringe needle between the fingers or frequently adjust the position of the offset syringe needle, which greatly increases the surgeon's workload, is prone to operating errors, and also affects the efficiency of the densification surgery.

[0004] In view of the above-mentioned defects, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Summary of the invention

[0005] In order to solve the above-mentioned technical defects, the technical solution adopted by the present invention is to provide an encrypted microneedle for autologous hair transplantation, comprising a first clamping part, a second clamping part and a needle body, the needle body is used to perform encryption operations, the needle body is arranged between the first clamping part and the second clamping part, the first clamping part and the second clamping part are both provided with a finger sleeve for being sleeved on the operator's finger, the first clamping part comprises a first clamping sheet, the second clamping part comprises a second clamping sheet, the first clamping sheet and the second clamping sheet are both arranged as arc sheet-like pieces, and the inner concave surfaces of the first clamping sheet and the second clamping sheet are fitted and fixed to the finger sleeve, a clamping assembly is arranged at the center of the outer convex surfaces of the first clamping sheet and the second clamping sheet, a limiting groove is arranged on the clamping assembly, and the needle body is arranged in the limiting groove.

[0006] Preferably, the clamping assembly is configured as a clamping block, and the limiting groove is provided on one side of the clamping block away from the first clamping piece or the second clamping piece. The limiting groove is configured as an arc-shaped groove, and the limiting groove extends in a straight line through the clamping block. The limiting grooves on the two clamping blocks are correspondingly arranged so that the needle body is simultaneously arranged in the two limiting grooves.

[0007] Preferably, the clamping assembly includes a connecting seat, a first clamping block, a second clamping block and a connecting shaft, the connecting seat is fixedly provided at the center of the outer convex surfaces of the first clamping piece and the second clamping piece, the first clamping block is rotatably connected to the connecting seat of the first clamping piece through a connecting shaft, the second clamping block is rotatably connected to the connecting seat of the second clamping piece through a connecting shaft, the limiting grooves are provided on the first clamping block and the second clamping block, and the two connecting shafts are coaxially provided.

[0008] Preferably, a connecting hole and a limiting hole are provided on the connecting seat, the connecting hole and the limiting hole are coaxially arranged, and the aperture of the connecting hole is smaller than the aperture of the limiting hole, one end of the connecting shaft is fixedly provided with a disc-shaped limiting plate, and the other end is fixedly connected to the first clamping block or the second clamping block, the connecting shaft is arranged in the connecting hole, the limiting plate is arranged in the limiting hole, and the cross-sectional diameter of the limiting plate is larger than the aperture of the connecting hole.

[0009] Preferably, the first clamping block is configured as a cylindrical tube-shaped member, the inner diameter of the first clamping block is larger than the diameter of the needle body, the first clamping block is sleeved on the outside of the needle body, and the second clamping block is configured as a plate with a circular arc cross-section, thereby forming an inner concave cavity on the side of the second clamping block close to the first clamping block, the inner diameter of the cross-section of the second clamping block is consistent with the outer diameter of the first clamping block, and the inner cavity of the first clamping block and the inner concave cavity of the second clamping block are the limiting groove.

[0010] Preferably, a positioning rod is provided on the first clamping block, and a positioning groove is provided on the second clamping block, the positioning rod is provided as a cylindrical cone coaxial with the connecting axis, the positioning groove is provided as a straight hole, the cross-sectional diameter of the positioning rod gradually decreases in the direction away from the first clamping block, and the cross-sectional diameter of the positioning groove is larger than the minimum cross-sectional diameter of the positioning rod and larger than the maximum cross-sectional diameter of the positioning rod.

[0011] Preferably, an extrusion notch is provided on one side of the first clamping block close to the second clamping block, an extrusion block is provided in the inner concave cavity of the second clamping block, the extrusion block is arranged corresponding to the extrusion notch, the extrusion block is made of rubber or silicone material, the width of the extrusion block is smaller than the width of the extrusion notch, and the maximum thickness of the extrusion block is greater than the wall thickness of the first clamping block.

[0012] Preferably, a positioning rod is provided on the first clamping block, and a positioning groove is provided on the second clamping block, the two positioning rods are respectively provided on both sides of the extrusion groove, the two positioning grooves are respectively provided at both ends of the second clamping block, and the positioning groove extends from the end of the second clamping block along the center of the cavity wall of the inner concave cavity.

[0013] Preferably, a first clamping ring is provided on the connecting seat of the first clamping part, and a second clamping ring is provided on the connecting seat of the second clamping part, the first clamping ring and the second clamping ring are both cylindrical parts made of rubber material, one end of the first clamping ring and the second clamping ring are both fixedly provided on the corresponding connecting seat, the other end of the first clamping ring is a first clamping plane, and the other end of the second clamping ring is a second clamping plane, the first clamping ring, the second clamping ring and the rotating shaft are coaxially arranged, and the first clamping block is arranged in the first clamping ring, and the second clamping block is arranged in the second clamping ring.

[0014] Preferably, the minimum straight-line distance from the axis of the first clamping block to the first clamping plane is smaller than the inner radius of the first clamping block, and the minimum straight-line distance from the axis of the second clamping block to the second clamping plane is smaller than the inner radius of the first clamping block.

[0015] Compared with the prior art, the beneficial effect of the present invention is that the present invention arranges the first clamping piece and the second clamping piece for clamping the needle body, and realizes the stability of the relative position of the needle body and the first clamping piece and the second clamping piece through the clamping assembly, thereby avoiding the displacement and sliding of the needle body due to force during the encryption process, greatly reducing the workload of the doctor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the structure of the encrypted microneedle used for autologous hair transplantation; Figure 2 It is a front view structural cross-sectional view of the first clamping part embodiment 1; Figure 3 is a top view of the structure of the first clamping portion in embodiment 1; Figure 4 It is a side structural view of the first embodiment of the second clamping part; Figure 5 This is a front view of the structure of the second embodiment of the encrypted microneedle for autologous hair transplantation; Figure 6 It is a top view of the structure cross-section of the second embodiment of the encrypted microneedle for autologous hair transplantation; Figure 7 This is a front view of the structure of the third embodiment of the encrypted microneedle for autologous hair transplantation; Figure 8 The top view of the structure of the encrypted microneedle used for autologous hair transplantation is a cross-sectional view; Fig. 9 It is a top view of the structure cross-section of the fourth embodiment of the encrypted microneedle for autologous hair transplantation; Fig.10 This is a top view of the structural cross-section of the fifth embodiment of the encrypted microneedle for autologous hair transplantation.

[0017] The numbers in the figure represent: 1-first clamping part; 2-second clamping part; 3-needle body; 4-finger sleeve; 5-clamping assembly; 11-first clamping plate; 21-second clamping plate; 51-limiting groove; 52-connecting seat; 53-first clamping block; 54-second clamping block; 55-connecting shaft; 56-limiting plate; 57-positioning rod; 58-positioning groove; 59-extrusion notch; 60-extrusion block; 61-first clamping ring; 62-second clamping ring; 63-spherical convex point. DETAILED DESCRIPTION

[0018] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0019] Embodiment 1 like Figure 1 As shown, Figure 1 It is a schematic diagram of the structure of the encrypted microneedle used for autologous hair transplantation.

[0020] The encrypted microneedle for autologous hair transplantation described in the present invention comprises a first clamping part 1, a second clamping part 2 and a needle body 3, wherein the needle body 3 is used for performing encryption operations, and the needle body 3 is arranged between the first clamping part 1 and the second clamping part 2, and the first clamping part 1 and the second clamping part 2 are respectively sleeved on two fingers of the operator, and the first clamping part 1 and the second clamping part 2 clamp the needle body 3, thereby facilitating fixing the needle body 3 between the fingers of the operator.

[0021] Specifically, the first clamping part 1 and the second clamping part 2 are both provided with a finger sleeve 4, which is used to be put on the operator's fingers to fix the first clamping part 1 and the second clamping part 2 on the operator's fingers. Similarly, the finger sleeve 4 can also be set as a conventional finger fixing component such as a finger ring.

[0022] The first clamping portion 1 includes a first clamping piece 11, and the second clamping portion 2 includes a second clamping piece 21. The first clamping piece 11 and the second clamping piece 21 are both configured as arc-shaped pieces, and the inner concave surfaces of the first clamping piece 11 and the second clamping piece 21 are fitted and fixed to the finger sleeve 4, so that when the finger sleeve 4 is sleeved on the operator's finger, the first clamping piece 11 and the second clamping piece 21 are fitted to the operator's finger, which facilitates the operator to perform force clamping operations.

[0023] like Figure 2 , Figure 3 , Figure 4 As shown, Figure 2 It is a front view structural cross-sectional view of the first clamping part embodiment 1; Figure 3 is a top view of the structure of the first clamping portion in embodiment 1; Figure 4 This is a side structural view of the first embodiment of the second clamping part.

[0024] Generally, the first clamping plate 11 and the second clamping plate 21 are both configured as spherical sheet structures, and a clamping assembly 5 is provided at the center of the outer convex surface of the first clamping plate 11 and the second clamping plate 21. A limiting groove is provided on the clamping assembly 5, and the needle body 3 is arranged in the limiting groove, so that the position of the needle body 3 can be limited between the first clamping plate 11 and the second clamping plate 21.

[0025] In this embodiment, the clamping assembly 5 is configured as a clamping block, and the clamping block is provided with a limiting groove 51 on one side away from the first clamping piece 11 or the second clamping piece 21. The limiting groove 51 is configured as an arc-shaped groove, and the limiting groove 51 extends in a straight line through the clamping block. The limiting grooves 51 on the two clamping blocks are correspondingly arranged so that the needle body 3 is simultaneously arranged in the two limiting grooves 51 to achieve clamping and fixation of the needle body 3.

[0026] In this embodiment, the first clamping piece 11 and the second clamping piece 21 clamp and fix the needle body 3 in the limiting groove 51, thereby achieving stability of the needle body 3, and the operator moves the needle body 3 by moving the hand position.

[0027] The present invention provides the first clamping piece 11 and the second clamping piece 21 for clamping the needle body 3, and achieves the stability of the relative position of the needle body 3 and the first clamping piece 11 and the second clamping piece 21 through the clamping assembly 5, thereby avoiding the displacement and sliding of the needle body 3 due to force during the encryption process, greatly reducing the workload of the doctor.

[0028] Embodiment 2 like Figure 5 , Figure 6 As shown, Figure 5 This is a front view of the structure of the second embodiment of the encrypted microneedle for autologous hair transplantation; Figure 6 This is a top view of the structural cross-section of the second embodiment of the encrypted microneedle for autologous hair transplantation.

[0029] This embodiment is further improved on the basis of the first embodiment, and the improvement is that the clamping assembly 5 includes a connecting seat 52, a first clamping block 53, a second clamping block 54 and a connecting shaft 55, the connecting seat 52 is fixedly set at the center of the outer convex surface of the first clamping piece 11 and the second clamping piece 21, the first clamping block 53 is rotatably connected to the connecting seat 52 of the first clamping piece 11 through a connecting shaft 55, and the second clamping block 54 is rotatably connected to the connecting seat 52 of the second clamping piece 21 through a connecting shaft 55, the limiting groove 51 is set on the first clamping block 53 and the second clamping block 54, and the two connecting shafts 55 are coaxially set.

[0030] The needle body 3 is fixedly arranged on the first clamping block 53 and the second clamping block 54 through the limiting groove 51, and the first clamping block 53 and the second clamping block 54 can rotate relative to each other around the same axis, so that after the needle body 3 is set between the first clamping part 1 and the second clamping part 2, the needle body 3 can be swung around the connecting shaft 55 by adjusting the rear end of the needle body 3 to adjust the needle position at the front end of the needle body 3, thereby performing fine adjustment of the encryption operation.

[0031] Specifically, the first clamping part 1 and the second clamping part 2 can be respectively sleeved by the thumb and the middle finger, and after the needle body 3 is set between the first clamping part 1 and the second clamping part 2, the rear end of the needle body 3 can be stirred by the index finger to adjust the front end needle position, and after the adjustment is completed, the rear end position of the needle body 3 can be further fixed by the index finger to achieve the position fixation of the needle body 3 between the first clamping part 1 and the second clamping part 2.

[0032] Specifically, a connecting hole and a limiting hole are provided on the connecting seat 52, the connecting hole and the limiting hole are coaxially arranged, and the aperture of the connecting hole is smaller than the aperture of the limiting hole, one end of the connecting shaft 55 is fixedly provided with a disc-shaped limiting plate 56, and the other end is fixedly connected to the first clamping block 53 or the second clamping block 54, the connecting shaft 55 is arranged in the connecting hole, the limiting plate 56 is arranged in the limiting hole, and the cross-sectional diameter of the limiting plate 56 is larger than the aperture of the connecting hole, thereby ensuring the free rotation of the first clamping block 53 or the second clamping block 54.

[0033] Preferably, the first clamping block 53 is configured as a cylindrical tube-shaped member, the inner diameter of the first clamping block 53 is slightly larger than the diameter of the needle body 3, the first clamping block 53 is sleeved on the outside of the needle body 3, and the second clamping block 54 is configured as a plate with a circular arc cross-section, so that an inner concave cavity is formed on the side of the second clamping block 54 close to the first clamping block 53, the inner diameter of the cross-section of the second clamping block 54 is consistent with the outer diameter of the first clamping block 53, the inner cavity of the first clamping block 53 and the inner concave cavity of the second clamping block 54 are the limiting groove 51, and the first clamping block 53 is arranged in the inner concave cavity to form a snap-fit ​​positioning, thereby ensuring that the first clamping block 53 and the second clamping block 54 can rotate relative to each other around the same axis.

[0034] Generally, a positioning rod 57 may be provided on the first clamping block 53, and a positioning groove 58 may be provided on the second clamping block 54. When the first clamping block 53 is disposed in the inner concave cavity, the positioning rod 57 is disposed in the positioning groove 58, thereby ensuring that the two rotating shafts are coaxially disposed.

[0035] Preferably, the positioning rod 57 can be set to a cylindrical cone shape coaxial with the connecting shaft 55, and the positioning groove 58 can be set to a straight hole. The cross-sectional diameter of the positioning rod 57 gradually decreases in the direction away from the first clamping block 53. The cross-sectional diameter of the positioning groove 58 is larger than the minimum cross-sectional diameter of the positioning rod 57 and larger than the maximum cross-sectional diameter of the positioning rod 57, so as to facilitate the insertion of the positioning rod 57 into the positioning groove 58.

[0036] Embodiment 3 like Figure 7 , Figure 8 As shown, Figure 7 This is a front view of the structure of the third embodiment of the encrypted microneedle for autologous hair transplantation; Figure 8 This is a top view of the structural cross-section of the third embodiment of the encrypted microneedle for autologous hair transplantation.

[0037] This embodiment is further improved on the basis of the second embodiment. The improvement is that an extrusion notch 59 is provided on one side of the first clamping block 53 close to the second clamping block 54. The extrusion notch 59 makes it easier to place the needle body 3 in the first clamping block 53.

[0038] Correspondingly, an extrusion block 60 is arranged in the inner concave cavity of the second clamping block 54, and the extrusion block 60 is arranged corresponding to the extrusion groove 59. The extrusion block 60 is made of rubber or silicone material. The width of the extrusion block 60 is smaller than the width of the extrusion groove 59, and the maximum thickness of the extrusion block 60 is greater than the wall thickness of the first clamping block 53. Therefore, when the first clamping block 53 is arranged in the inner concave cavity and the first clamping block 53 and the second clamping block 54 are squeezed, the elastic extrusion block 60 is squeezed from the extrusion groove 59 to the inside of the first clamping block 53, so that the needle body 3 is squeezed and fitted with the inner wall of the first clamping block 53 to achieve the position fixation of the needle body 3 inside the first clamping block 53.

[0039] By setting the extrusion notch 59 and the extrusion block 60, the axial movement of the needle body 3 on the first clamping block 53 can be avoided when the needle body 3 is rotated and adjusted, thereby further improving the position stability of the needle body 3 when clamped by the first clamping part 1 and the second clamping part 2.

[0040] Since the positions where the extrusion notch 59 and the extrusion block 60 are set cover the axis of the rotating shaft, the positioning rod 57 cannot be set coaxially with the connecting shaft 55. In this embodiment, the two positioning rods 57 are respectively set on both sides of the extrusion notch 59, and the two positioning grooves 58 are respectively set at the two ends of the second clamping block 54. The positioning groove 58 extends from the end of the second clamping block 54 along the center of the cavity wall of the inner concave cavity. Therefore, when the first clamping block 53 is placed in the inner concave cavity, the positioning rod 57 can enter the positioning groove 58 from the notch of the positioning groove 58 located at the end of the second clamping block 54, thereby realizing the stability of the relative position between the first clamping block 53 and the second clamping block 54.

[0041] Embodiment 4 like Fig. 9 As shown, Fig. 9 It is a top view of the structural cross-section of the fourth embodiment of the encrypted microneedle for autologous hair transplantation.

[0042] This embodiment is further improved on the basis of the second embodiment, and the improvement lies in that a first clamping ring 61 is provided on the connecting seat 52 of the first clamping part 1, and a second clamping ring 62 is provided on the connecting seat 52 of the second clamping part 2. The first clamping ring 61 and the second clamping ring 62 are both cylindrical parts made of rubber material, and one end of the first clamping ring 61 and the second clamping ring 62 are fixedly provided on the corresponding connecting seat 52, the other end of the first clamping ring 61 is a first clamping plane, and the other end of the second clamping ring 62 is a second clamping plane, the first clamping ring 61, the second clamping ring 62 and the rotating shaft are coaxially arranged, and the first clamping block 53 is arranged in the first clamping ring 61, and the second clamping block 54 is arranged in the second clamping ring 62. When the first clamping block 53 and the second clamping block 54 clamp and fix the needle body 3, the first clamping plane and the second clamping plane respectively contact with the two sides of the needle body 3 and squeeze and fix them, thereby further fixing the needle body 3.

[0043] Preferably, the minimum straight-line distance from the axis of the first clamping block 53 to the first clamping plane is slightly smaller than the inner radius of the first clamping block 53, so that when the needle body 3 is placed inside the first clamping block 53, one side of the needle body 3 is in contact with the first clamping plane, and the minimum straight-line distance from the axis of the second clamping block 54 to the second clamping plane is slightly smaller than the inner radius of the first clamping block 53, so that when the first clamping block 53 is placed inside the inner concave cavity, one side of the needle body 3 is in contact with the second clamping plane, that is, the distance between the first clamping plane and the second clamping plane is smaller than the cross-sectional diameter of the needle body 3, so as to achieve clamping and fixation of the needle body 3.

[0044] Embodiment 5 like Fig.10 As shown, Fig.10 It is a top view of the structural cross-section of the fourth embodiment of the encrypted microneedle for autologous hair transplantation.

[0045] This embodiment is further improved on the basis of the third embodiment or the fourth embodiment, and the improvement is that the connecting hole passes through the corresponding first clamping piece 11 or the second clamping piece 21, the limiting hole is arranged on the inner concave surface of the first clamping piece 11 or the second clamping piece 21, the connecting hole and the limiting hole are arranged coaxially, and the aperture of the connecting hole is smaller than the aperture of the limiting hole, one end of the connecting shaft 55 is fixedly provided with a disc-shaped limiting plate 56, and the other end is fixedly connected to the first clamping block 53 or the second clamping block 54, the connecting shaft 55 is arranged in the connecting hole, the limiting plate 56 is arranged in the limiting hole, and the cross-sectional diameter of the limiting plate 56 is larger than the aperture of the connecting hole, thereby ensuring the free rotation of the first clamping block 53 or the second clamping block 54.

[0046] Specifically, a spherical convex point 63 is provided on the end surface of the limit plate 56 close to the finger sleeve 4, and the spherical convex point 63 is made of rubber. When the operator applies force to squeeze the first clamping block 53 and the second clamping block 54, the limit plate 56 moves toward the finger sleeve 4 and squeezes the finger sleeve 4 through the spherical convex point 63 to provide feedback to the operator's finger, and can also fix and limit the rotation of the rotating shaft. If both sides are convex, it is in a clamping state and encryption operation can be performed. When both sides are loose, the rotating shaft can be rotated to adjust the inclination angle.

[0047] It is worth pointing out that the first clamping block 53 and the second clamping block 54 are relatively limited to the corresponding connecting seat 52 to limit the moving distance of the limiting plate 56 toward the finger sleeve 4.

[0048] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A dense microneedle for autologous hair transplantation, characterized in that: It includes a first clamping part, a second clamping part and a needle body, the needle body is used for performing encryption operations, the needle body is arranged between the first clamping part and the second clamping part, the first clamping part and the second clamping part are both provided with a finger sleeve for being mounted on the operator's finger, the first clamping part includes a first clamping sheet, the second clamping part includes a second clamping sheet, the first clamping sheet and the second clamping sheet are both arranged as arc sheet-like pieces, and the inner concave surfaces of the first clamping sheet and the second clamping sheet are fitted and fixed to the finger sleeve, a clamping assembly is arranged at the center of the outer convex surfaces of the first clamping sheet and the second clamping sheet, a limiting groove is arranged on the clamping assembly, and the needle body is arranged in the limiting groove.

2. The dense microneedle for autologous hair transplantation according to claim 1, characterized in that: The clamping assembly is configured as a clamping block, and the limiting groove is provided on one side of the clamping block away from the first clamping piece or the second clamping piece. The limiting groove is configured as an arc-shaped groove, and the limiting groove extends in a straight line through the clamping block. The limiting grooves on the two clamping blocks are correspondingly arranged so that the needle body is simultaneously arranged in the two limiting grooves.

3. The dense microneedle for autologous hair transplantation according to claim 1, characterized in that: The clamping assembly includes a connecting seat, a first clamping block, a second clamping block and a connecting shaft. The connecting seat is fixedly arranged at the center of the outer convex surfaces of the first clamping piece and the second clamping piece. The first clamping block is rotatably connected to the connecting seat of the first clamping piece through a connecting shaft. The second clamping block is rotatably connected to the connecting seat of the second clamping piece through a connecting shaft. The limiting grooves are arranged on the first clamping block and the second clamping block, and the two connecting shafts are coaxially arranged.

4. The dense microneedle for autologous hair transplantation according to claim 3, characterized in that: A connecting hole and a limiting hole are provided on the connecting seat, the connecting hole and the limiting hole are coaxially arranged, and the aperture of the connecting hole is smaller than the aperture of the limiting hole, a disc-shaped limiting plate is fixedly arranged at one end of the connecting shaft, and the other end is fixedly connected to the first clamping block or the second clamping block, the connecting shaft is arranged in the connecting hole, the limiting plate is arranged in the limiting hole, and the cross-sectional diameter of the limiting plate is larger than the aperture of the connecting hole.

5. The dense microneedle for autologous hair transplantation according to claim 3, characterized in that: The first clamping block is configured as a cylindrical tube-shaped part, the inner diameter of the first clamping block is larger than the diameter of the needle body, the first clamping block is sleeved on the outside of the needle body, and the second clamping block is configured as a plate with a circular arc cross-section, so that an inner concave cavity is formed on the side of the second clamping block close to the first clamping block, the inner diameter of the cross-section of the second clamping block is consistent with the outer diameter of the first clamping block, and the inner cavity of the first clamping block and the inner concave cavity of the second clamping block are the limiting groove.

6. The dense microneedle for autologous hair transplantation according to claim 5, characterized in that: A positioning rod is provided on the first clamping block, and a positioning groove is provided on the second clamping block. The positioning rod is provided in a cylindrical cone shape coaxial with the connecting shaft, and the positioning groove is provided in a straight hole. The cross-sectional diameter of the positioning rod gradually decreases in a direction away from the first clamping block, and the cross-sectional diameter of the positioning groove is larger than the minimum cross-sectional diameter of the positioning rod and larger than the maximum cross-sectional diameter of the positioning rod.

7. The dense microneedle for autologous hair transplantation according to claim 5, characterized in that: An extrusion notch is provided on one side of the first clamping block close to the second clamping block, an extrusion block is provided in the inner concave cavity of the second clamping block, the extrusion block is provided corresponding to the extrusion notch, the extrusion block is made of rubber or silicone, the width of the extrusion block is smaller than the width of the extrusion notch, and the maximum thickness of the extrusion block is greater than the wall thickness of the first clamping block.

8. The dense microneedle for autologous hair transplantation according to claim 7, characterized in that: A positioning rod is provided on the first clamping block, and a positioning groove is provided on the second clamping block. The two positioning rods are respectively provided on both sides of the extrusion groove, and the two positioning grooves are respectively provided at both ends of the second clamping block. The positioning groove extends from the end of the second clamping block along the center of the cavity wall of the inner concave cavity.

9. The dense microneedle for autologous hair transplantation according to claim 5, characterized in that: A first clamping ring is arranged on the connecting seat of the first clamping part, and a second clamping ring is arranged on the connecting seat of the second clamping part. The first clamping ring and the second clamping ring are both cylindrical parts made of rubber material. One end of the first clamping ring and the second clamping ring are both fixedly arranged on the corresponding connecting seat, the other end of the first clamping ring is a first clamping plane, and the other end of the second clamping ring is a second clamping plane. The first clamping ring, the second clamping ring and the rotating shaft are coaxially arranged, and the first clamping block is arranged in the first clamping ring, and the second clamping block is arranged in the second clamping ring.

10. The dense microneedle for autologous hair transplantation according to claim 9, characterized in that: The minimum straight-line distance from the axis of the first clamping block to the first clamping plane is smaller than the inner radius of the first clamping block, and the minimum straight-line distance from the axis of the second clamping block to the second clamping plane is smaller than the inner radius of the first clamping block.

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