Hair follicle transplantation device

Abstract

The utility model discloses a hair follicle transplanting device, and belongs to the technical field of medical beauty instruments. The defects that in the prior art, a traditional hair follicle transplantation device is difficult to assemble and disassemble and lacks an effective buffering mechanism, and a needle head is prone to being polluted are overcome. The main body structure of the device comprises an inner shaft, a button connected with one end of the inner shaft, an outer shaft installed outside the inner shaft and a needle adjusting knob sleeved outside the inner shaft, an inner core assembly, a spring and a needle assembly are sequentially installed in the inner shaft, the inner core assembly comprises a solid needle seat and a solid needle, one end of the solid needle is fixedly connected with the solid needle seat, and the other end of the solid needle is fixedly connected with the spring. And the other end of the solid needle sequentially penetrates through the spring and the needle assembly. The hair follicle extracting and planting device is mainly used for extracting and planting hair follicle units.

Description

Technical Field

[0001] This utility model belongs to the field of medical aesthetic device technology, and more specifically, it relates to a hair follicle transplantation device. Background Technology

[0002] Hair follicle transplantation is a common treatment for hair loss and other hair loss symptoms. The main process involves extracting healthy hair follicle units from the back of the patient's head and then precisely implanting these units into areas where hair density needs to be increased. Autologous hair transplantation surgery, based on the method of follicle extraction, mainly includes follicle unit transplantation (FUT) and follicle unit extraction (FUE). Because of its significant advantages, FUE is currently the most mainstream follicle extraction technique. FUE involves extracting hair follicles from the recipient area, then further subdividing them into individual follicles using tools of varying diameters to ensure precise and complete extraction. These follicles are then implanted into the desired areas, including the scalp, eyebrows, eyelashes, beard, chest, pubic area, etc.

[0003] However, most existing hair follicle transplantation devices still have the following shortcomings: 1. Difficult to install and remove; 2. Inability to directly determine the orientation of hair transplantation, and repeated installation and removal cannot determine the needle orientation; 3. Uncomfortable grip, causing doctors to spend time and effort adjusting the device orientation during actual operation, reducing surgical efficiency; 4. Inability to visually confirm the specifications of the hair follicle transplantation device and needle through the product; 5. Due to the lack of an effective cushioning mechanism, unnecessary pain and discomfort may be caused to patients during puncture, resulting in a poor user experience and easy fatigue for doctors; 6. The needle is easily contaminated or accidentally injured when not in use, which is not conducive to maintaining a sterile environment and increases medical risks.

[0004] For example, Chinese utility model patent with authorization announcement number CN 218943462 U discloses a hair follicle transplantation device that can display color marks. It can solve the defects such as difficulty in loading hair follicles, inapplicability and inconvenience of operation. However, its shortcomings are: due to the lack of solid and hollow needles, the needle length cannot be adjusted, and due to the lack of an effective buffering mechanism, it causes pain and discomfort to patients during the puncture process. Utility Model Content

[0005] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and to provide a hair follicle transplantation device.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] A hair follicle transplantation device includes an inner shaft, a button connected to one end of the inner shaft, an outer shaft installed outside the inner shaft, and a needle adjustment knob sleeved outside the inner shaft. An inner core assembly, a spring, and a needle assembly are sequentially installed inside the inner shaft. The inner core assembly includes a solid needle base and a solid needle. One end of the solid needle is fixedly connected to the solid needle base, and the other end of the solid needle passes through the spring and the needle assembly in sequence.

[0008] Preferably, the needle assembly includes a hollow needle holder and a hollow needle. One end of the hollow needle is fixedly connected to the hollow needle holder, and the other end of the hollow needle extends out of the inner shaft. The other end of the solid needle passes through the spring, the hollow needle holder, and the hollow needle in sequence, and the end of the solid needle is located inside the hollow needle.

[0009] Preferably, the inner shaft is provided with a groove, the two sides of the hollow needle holder protrude from the groove on the inner shaft, and the hollow needle holder is connected to the outer shaft by a thread.

[0010] Preferably, one end of the inner shaft is threadedly connected to the button, and the adjusting knob is threadedly connected to the inner shaft.

[0011] Preferably, a sealing ring for cushioning the puncture force is provided on the outside of the button.

[0012] Preferably, a protective sleeve is installed on the outer side of the inner shaft away from the button.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The inner and outer shafts and needle adjustment knobs allow doctors to more accurately control the puncture angle and depth during hair follicle transplantation surgery. The combined use of solid and hollow needles further ensures precise positioning during the transplantation process.

[0015] 2. The spring-driven automated puncture and retraction action reduces the complexity and time consumption of manual operation, thereby improving surgical efficiency. At the same time, the threaded connection design between the button and the inner shaft facilitates quick disassembly and installation, accelerating the surgical preparation process.

[0016] 3. The sealing ring is designed to buffer the puncture force, which not only reduces patient discomfort but also protects the equipment from excessive impact, extending its service life.

[0017] 4. The sheath is installed on the outside of the inner shaft away from the button, which effectively protects the needle from external contamination when not in use, and also reduces the risk of accidental injury;

[0018] 5. The hollow needle holder is connected to the inner shaft through a groove and to the outer shaft through a threaded connection, allowing users to adjust the length of the hollow needle in the needle assembly according to actual needs to adapt to different surgical requirements;

[0019] 6. The overall design is compact and reasonable. The close cooperation between the components not only reduces the overall size of the device and makes it easy to carry, but also ensures the stability and reliability during operation.

[0020] In summary, this utility model has a simple structure, is easy to manufacture and has low cost, which significantly improves the precision, efficiency and patient comfort of the surgery. It is especially suitable for hair follicle unit extraction and implantation operations, and has adjustable depth, angle, hair density and pressure buffering functions. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is one of the internal sectional views of this utility model;

[0023] Figure 3 This is the second internal sectional view of the present invention;

[0024] Figure 4 This is one of the partial disassembly diagrams of this utility model;

[0025] Figure 5 This is the second partially disassembled diagram of this utility model;

[0026] Figure 6 This is a schematic diagram of the hollow needle holder in this utility model.

[0027] In the diagram: 1. Button; 2. Sealing ring; 3. Outer shaft; 4. Needle adjustment knob; 5. Protective sleeve; 6. Solid needle holder; 7. Solid needle; 8. Spring; 9. Hollow needle holder; 10. Hollow needle; 11. Inner shaft; 12. Groove; 13. Masterbatch; 14. Boss. Detailed Implementation

[0028] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

[0029] Example 1:

[0030] like Figure 1-3 As shown, a hair follicle transplantation device includes an inner shaft 11, a button 1 connected to one end of the inner shaft 11, an outer shaft 3 installed outside the inner shaft 11, and a needle adjustment knob 4 sleeved outside the inner shaft 11. An inner core assembly, a spring 8, and a needle assembly are sequentially installed inside the inner shaft 11. The inner core assembly includes a solid needle holder 6 and a solid needle 7. One end of the solid needle 7 is fixedly connected to the solid needle holder 6, and the other end of the solid needle 7 passes through the spring 8 and the needle assembly in sequence. Specifically, one end of the solid needle 7 is bonded to the solid needle holder 6 with UV adhesive.

[0031] Example 2:

[0032] A hair follicle transplantation device differs from Embodiment 1 in that the needle assembly includes a hollow needle base 9 and a hollow needle 10. One end of the hollow needle 10 is fixedly connected to the hollow needle base 9, and the other end of the hollow needle 10 protrudes outside the inner shaft 11. The other end of a solid needle 7 passes sequentially through a spring 8, the hollow needle base 9, and the hollow needle 10, with the end of the solid needle 7 located inside the hollow needle 10. Specifically, one end of the hollow needle 10 is bonded to the hollow needle base 9 with UV adhesive. Specifically, the solid needle 7 and the hollow needle 10 work together to allow hair follicles to be placed inside the hollow needle 10 during hair transplantation. During the transplantation process, the hollow needle 10 can limit the position of the hair follicles, maintaining a straight planting line, and the hollow needle 10 also performs the function of breaking the skin. The hollow needle 10 pushes the hair follicle under the skin, and then pressing button 1 withdraws the hollow needle 10, while the solid needle 7 remains stationary to prevent the hair follicle from detaching from the skin.

[0033] like Figure 4 As shown, the inner shaft 11 is provided with a groove 12, and the two sides of the hollow needle seat 9 pass through the groove 12 on the inner shaft 11, and the hollow needle seat 9 is connected to the outer shaft 3 by a thread. One end of the inner shaft 11 is connected to the button 1 by a thread, and the needle adjustment knob 4 is connected to the inner shaft 11 by a thread.

[0034] In this embodiment, considering the different skin thicknesses of different groups of people, a hair follicle transplantation device is a needle length adjustable type, which can change by 0.55mm for each rotation of the needle adjustment knob 4.

[0035] Furthermore, a sealing ring 2 is provided on the outside of button 1 to buffer the puncture force. The sealing ring 2 is used to absorb the puncture kinetic energy during multiple punctures, reducing the problem of poor user experience and easy fatigue of doctors when using multiple punctures.

[0036] Furthermore, a protective sleeve 5 is installed on the outer side of the inner shaft 11 away from the button 1. The protective sleeve 5 is installed on the outer side of the inner shaft 11 away from the button 1, which effectively protects the needle from external contamination when not in use, and also reduces the risk of accidental injury.

[0037] Example 3:

[0038] The difference from Embodiment 2 is that a hair follicle transplant device is a needle length fixed type, with the needle adjustment knob 4 fixedly connected to the inner shaft 11. Glue is applied to the thread or other processes are used to make the thread untighten by the user, which makes the product more secure, but the needle length cannot be adjusted.

[0039] Furthermore, medical-grade POM is used as the raw material, ensuring smooth assembly without any jamming.

[0040] After hair follicle transplantation, the orientation can be determined by the direction mark on the inner shaft 11. The needle assembly can be repeatedly installed and removed. The needle assembly has a groove 12 to prevent incorrect installation and can be adjusted to ensure that the needle tube orientation remains consistent with the mark even after multiple uses.

[0041] The grip position is on the front side of the outer shaft 3, so that when gripping, the button 1 and the three points on both sides of the outer shaft 3 are more stable.

[0042] like Figure 5 As shown, different specifications of needles correspond to different colors. During injection molding, color masterbatch 13 must be added to the inner shaft 11, hollow needle seat 9, and solid needle seat 6. The colors of the product examples of different specifications are different, but the three parts are the same color to keep them consistent and prevent incorrect assembly during disassembly. The matching relationship between color and specification is also clear at a glance when in use. The outer diameter of the hollow needle 10 needle tube covers 0.6-1.2mm.

[0043] The working principle of this utility model is as follows:

[0044] The hair follicle transplant device comes in two specifications: fixed needle length and adjustable needle length. Users can choose the fixed-length or adjustable-length type according to their usage habits. During use, hold the outer shaft 3 with one hand and place the separated hair follicles into the needle groove of the hollow needle 10 with the other. The hollow needle 10 punctures the skin to complete the drilling and implantation process in one step. Then, press button 1, and the needle assembly retracts, completing one hair follicle implantation. A spring 8 supports the inner core assembly and needle assembly to achieve reciprocating puncture. Because the operator cannot observe the direction of hair follicle implantation after the needle punctures the skin, they observe the groove 12 on the inner shaft 11 to observe the direction of hair transplantation. Specifically, during hair transplantation, the hair follicle is placed in the groove direction of the hollow needle 10. During initial production, the structure and process ensure that the groove 12 on the inner shaft 11 and the groove direction of the hollow needle 10 are consistent. Therefore, after the hollow needle 10 punctures the skin, the groove direction cannot be observed, and thus the direction of hair transplantation cannot be observed either. However, the direction of hair transplantation can be observed through the groove 12 on the inner shaft 11.

[0045] In addition, the needle assembly will wear out after prolonged use and needs to be replaced. Therefore, a boss 14 is added to the hollow needle holder 9 on the needle assembly. Figure 5-6 As shown, the inner shaft 11 has a unidirectional slot to ensure the reliability of the hair transplant direction marking function when it is replaced.

Claims

1. A hair follicle transplantation device, characterized in that: The device includes an inner shaft (11), a button (1) connected to one end of the inner shaft (11), an outer shaft (3) installed outside the inner shaft (11), and a needle adjustment knob (4) sleeved outside the inner shaft (11). The inner shaft (11) contains an inner core assembly, a spring (8), and a needle assembly. The inner core assembly includes a solid needle holder (6) and a solid needle (7). One end of the solid needle (7) is fixedly connected to the solid needle holder (6), and the other end of the solid needle (7) passes through the spring (8) and the needle assembly in sequence.

2. The hair follicle transplantation device according to claim 1, characterized in that: The needle assembly includes a hollow needle holder (9) and a hollow needle (10). One end of the hollow needle (10) is fixedly connected to the hollow needle holder (9), and the other end of the hollow needle (10) extends out of the inner shaft (11). The other end of the solid needle (7) passes through the spring (8), the hollow needle holder (9), and the hollow needle (10) in sequence, and the end of the solid needle (7) is located inside the hollow needle (10).

3. The hair follicle transplantation device according to claim 2, characterized in that: The inner shaft (11) is provided with a groove (12), and the two sides of the hollow needle seat (9) pass through the groove (12) on the inner shaft (11), and the hollow needle seat (9) is connected to the outer shaft (3) by a thread.

4. The hair follicle transplantation device according to any one of claims 1-3, characterized in that: One end of the inner shaft (11) is connected to the button (1) by a thread, and the adjusting knob (4) is connected to the inner shaft (11) by a thread.

5. The hair follicle transplantation device according to any one of claims 1-3, characterized in that: A sealing ring (2) for buffering the puncture force is provided on the outside of the button (1).

6. The hair follicle transplantation device according to any one of claims 1-3, characterized in that: The inner shaft (11) is fitted with a protective sleeve (5) at the end away from the button (1).

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