Minimally invasive electric negative pressure hair removal device

Abstract

To provide a minimally invasive electric negative pressure hair removal device that reduces the time and effort required by a doctor and enables surgery to be performed in a short time. [Solution] The minimally invasive electric negative pressure hair removal device comprises a handle 10, a motor 20, and a perforating tube blade 30. The handle is a tube, and a negative pressure tube connection portion 11 is provided at the rear end of the handle. The motor is disposed within the handle and has a hollow rotating shaft 21, which is inserted into the motor. The front end of the hollow rotating shaft protrudes from the front end of the handle, and the rear end extends into the negative pressure tube connection portion. The perforating tube blade is a tubular blade that is inserted into the hollow rotating shaft from its front end, and is rotated by the hollow rotating shaft. The front end of the perforating tube blade protrudes from the front end of the hollow rotating shaft, and is used to cut out hair follicle units or scalp tissue.

Description

[Technical Field]

[0001] This invention relates to the technical field of hair transplantation, and more particularly to a minimally invasive electric negative pressure hair removal device that can cut and suck out hair follicle units using negative pressure during hair transplant surgery, and also quickly remove scalp tissue from the transplant site. [Background technology]

[0002] Minimally invasive hair transplant surgery is a precise, minimally invasive procedure designed to improve a patient's hair loss or thinning. This procedure is performed by a specialized hair transplant surgeon using advanced minimally invasive equipment and techniques, ensuring comfort and efficiency during the procedure while minimizing scarring and recovery time. Before surgery begins, the surgeon will assess the patient's overall scalp and hair condition. This assessment includes determining the hair-donor area (typically the back of the head) and the location and size of the transplant area. After confirming the procedure, the surgical site is disinfected and local anesthesia is administered. The surgical team then prepares the necessary minimally invasive hair transplant tools, including a hair harvester, hair transplant needles, a magnifying glass, and other related equipment, and removes hair follicles from the hair-donor area and transplants them into the transplant area.

[0003] There are various types of conventional hair extractors. Conventional manual punches are operated manually by surgeons to cut out hair follicles using tiny cutters. However, the diameter of such tools is generally 0.7 to 1.0 mm, and they rely entirely on the surgeon's manual manipulation, requiring the surgeon to have advanced techniques and experience. Another tool, such as a motorized punch, uses a compression coil spring or an electric motor to drive the punch, increasing the speed at which hair follicles are extracted and reducing surgical time. Its design aims are to reduce damage to the hair follicles and increase extraction efficiency, but such tools combine different cutters and need to be adjusted according to the size of the hair follicles and the patient's scalp condition.

[0004] The punching device used to obtain the conventional hair follicular units described above requires the surgeon to manually control the force with which the hair follicles are removed, making it difficult to accurately remove the hair follicular units with the optimal force. Furthermore, when transplanting hair into a transplant area, scalp tissue is first removed from the location of the transplant area to form a hole, and the hair follicular unit is then implanted into the hole. During this process, after the scalp tissue is removed from the hole using the punching device, the scalp tissue remains on the punching device. For example, the surgeon must press the pins of the punching device to push out the scalp tissue remaining in the punching device, which is then collected in a medical waste collection bin. This operation, however, lengthens the overall surgical time.

[0005] The inventor of the present invention has taken into consideration the drawbacks of the above-mentioned conventional hair removal device technology and has perfected this invention by making various efforts based on his many years of experience and knowledge in manufacturing and designing in the related fields. Summary of the Invention [Problem to be solved by the invention]

[0006] The objective of this invention is to provide a minimally invasive electric negative pressure hair removal device that can quickly and accurately suck out the hair follicle units to be extracted using appropriate negative pressure, extracting the hair follicles in their entirety while minimizing skin damage, and when removing scalp tissue from the hair transplant site, can use negative pressure to suck the extracted scalp tissue into a collection container, thereby reducing the doctor's workload and shortening the surgery time. [Means for solving the problem]

[0007] In order to solve the above problems, according to a first form of the present invention, there is provided a minimally invasive electric negative pressure hair removal device comprising a handle, a motor, and a perforated tube blade, wherein the handle is a tube body and has a negative pressure tube connection portion at the rear end of the handle, the motor is arranged within the handle and has a hollow rotating shaft, the hollow rotating shaft is inserted into the motor, the front end of the hollow rotating shaft protrudes from the front end of the handle and the rear end extends into the negative pressure tube connection portion, the perforated tube blade is a circular tubular blade and is inserted into the hollow rotating shaft from the front end of the hollow rotating shaft, the perforated tube blade is rotated by the hollow rotating shaft, the front end of the perforated tube blade protrudes from the front end of the hollow rotating shaft, and the front end of the perforated tube blade cuts out hair follicle units or scalp tissue. [Effects of the Invention]

[0008] The minimally invasive electric negative pressure hair removal device of the present invention quickly and accurately sucks out the hair follicle units to be extracted using appropriate negative pressure, extracting the hair follicles in their entirety while minimizing skin damage. When removing scalp tissue from the transplant site, negative pressure is used to suck the extracted scalp tissue into a collection container, reducing the doctor's effort and shortening the surgery time. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a minimally invasive electric negative pressure hair removal device according to one embodiment of the present invention; [Figure 2] 1 is an exploded perspective view showing the main components of a minimally invasive electric negative pressure hair removal device according to one embodiment of the present invention; [Figure 3] 1 is a cross-sectional view of a minimally invasive electric negative pressure hair removal device according to one embodiment of the present invention; [Figure 4] 1 is an exploded perspective view showing a front cover of a minimally invasive electric negative pressure hair removal device according to an embodiment of the present invention; [Figure 5] 1 is an exploded perspective view showing a rear cover of a minimally invasive electric negative pressure hair removal device according to an embodiment of the present invention; [Figure 6]1 is a diagram illustrating the operation of the minimally invasive electric negative pressure hair removal device according to an embodiment of the present invention to remove a hair follicle unit. [Figure 7] 1 is an explanatory diagram showing the operation of a minimally invasive electric negative pressure hair removal device according to one embodiment of the present invention extracting scalp tissue from a hair transplant site. DETAILED DESCRIPTION OF THE INVENTION

[0010] The present invention will be described in more detail below based on the following embodiments, but the present invention is not limited to these embodiments.

[0011] Please refer to Figures 1 to 3. As shown in FIGS. 1 to 3, a minimally invasive electric negative pressure hair removal device according to one embodiment of the present invention includes a handle 10, a motor 20, and a perforated tube blade 30. As shown in FIG.

[0012] The handle 10 is a straight tube. A perforating tube blade 30 is inserted into the front end of the handle 10. A motor 20 for rotating the perforating tube blade 30 is disposed inside the handle 10. A vacuum tube connector 11 is provided at the rear end of the handle 10, connecting to the vacuum tube 100 of the device (not shown). This generates vacuum suction when the perforating tube blade 30 is used to cut hair follicle units or scalp tissue. A preferred embodiment of the vacuum tube connector 11 includes a protruding tube 111 protruding from the rear end of the handle 10, a nut 112 threaded onto the protruding tube 111, and an airtight seal 113 positioned between the protruding tube 111 and the nut 112. The airtight seal 113 is a silicone O-ring. When the nut 112 is tightened onto the protruding tube 111, the airtight seal 113 is compressed and tightly attached to the outer circumferential surface of the vacuum tube 100.

[0013] The motor 20 is disposed within the handle 10. The motor 20 has a hollow rotating shaft 21. The front and rear ends of the hollow rotating shaft 21 are inserted into the motor 20, the front end of the hollow rotating shaft 21 protrudes from the front end of the handle 10, and the rear end of the hollow rotating shaft 21 extends into the negative pressure tube connection part 11. Various perforating tube blades 30 of the hollow rotating shaft 21 can be replaced, and by rotating the perforating tube blade 30, hair follicle units or scalp tissue can be cut off.

[0014] The perforating tube blade 30 is a punch blade made of a medical metallic material, and has a diameter of approximately 0.6 to 0.9 mm. The perforating tube blade 30 is inserted into the hollow rotating shaft 21 from its front end, so that the hollow rotating shaft 21 and the perforating tube blade 30 can rotate together. Specifically, the rear end of the perforating tube blade 30 extends rearward into the protruding tube portion 111 described above. Because the front end of the perforating tube blade 30 protrudes from the front end of the hollow rotating shaft 21, when the perforating tube blade 30 is rotated, the cutting edge at its front end cuts off the hair follicle unit or scalp tissue.

[0015] A preferred embodiment includes a connecting sleeve 40 to enable the hollow rotary shaft 21 to drive the perforated pipe blade 30. The connecting sleeve 40 is preferably a tubular silicone sleeve. During assembly, the rear end of the connecting sleeve 40 is tightly fitted to the outer periphery of the front end of the hollow rotary shaft 21, and the front end of the connecting sleeve 40 is tightly fitted to the outer periphery of the perforated pipe blade 30, thereby positioning the perforated pipe blade 30 within the hollow rotary shaft 21 and allowing the perforated pipe blade 30 to rotate via the hollow rotary shaft 21. Two shaft sleeves 31 made of Teflon® are fitted onto the outer periphery of the perforated pipe blade 30. After the perforated pipe blade 30 is inserted into the hollow rotary shaft 21, the outer periphery of the shaft sleeves 31 is in close contact with the inner pipe wall of the hollow rotary shaft 21, enhancing the stability of the front end of the perforated pipe blade 30 as it rotates.

[0016] Please refer to Figures 2 and 3. As shown in Figures 2 and 3, the handle 10 according to a preferred embodiment of the present invention includes a tubular housing 12, a front end cap 13, and a rear end cap 14. The tubular housing 12 is an aluminum alloy pipe, and the motor 20 is fixed within the tubular housing 12. The front end cap 13 is a conical cap made of aluminum alloy, and is used to secure and close the front end of the tubular housing 12, allowing the front end of the hollow rotating shaft 21 of the motor 20 to protrude from the front end cap 13. The rear end cap 14 is a circular cap made of aluminum alloy, and is used to secure and close the rear end of the tubular housing 12. The vacuum tube connection portion 11 is provided at the rear end of the rear end cap 14. This configuration forms the handle 10, which is suitable for a surgeon to grasp during surgery.

[0017] This embodiment improves the stability and smoothness of rotation of the hollow rotating shaft 21 of the motor 20 and prevents unstable vibrations from occurring during rotation. See Figures 3 to 5. Teflon bearings 15 are provided in the central shaft holes of the front end cover 13 and rear end cover 14 described above, with the front end Teflon bearing 15 in close contact with the outer circumferential surface near the front end of the hollow rotating shaft 21 and the rear end Teflon bearing 15 in close contact with the rear end of the hollow rotating shaft 21.

[0018] To achieve an airtight effect, a first shaft seal structure 16 is provided within the central axial hole of the front end cover 13 of this invention. The first shaft seal structure 16 is fitted tightly against the outer circumferential surface of the hollow rotating shaft 21 near its front end. A second shaft seal structure 17 is provided at the front end of the straight tube housing 12. The second shaft seal structure 17 is fitted tightly against the outer circumferential surface of the middle portion of the hollow rotating shaft 21. A third shaft seal structure 18 is provided within the central axial hole of the rear end cover 14. The third shaft seal structure 18 is fitted tightly against the outer circumferential surface of the hollow rotating shaft 21 near its rear end. The first shaft seal structure 16, second shaft seal structure 17, and third shaft seal structure 18 provide a complete airtight structure and effect.

[0019] The first shaft seal structure 16 described above includes a silicone rubber ring 161, a silicone rubber ring lid 162, and a fixing nut 163. The second shaft seal structure 17 described above includes a silicone rubber ring 171, a silicone rubber ring lid 172, and a fixing nut 173. The third shaft seal structure 18 described above includes a silicone rubber ring 181, a silicone rubber ring lid 182, and a fixing nut 183. The silicone rubber rings 161, 171, and 181 are sequentially disposed within the central axial hole of the front end cap 13, the front end hole of the straight tube housing 12, and the central axial hole of the rear end cap 14, respectively. Then, the silicone rubber ring lids 162, 172, and 182 are installed, and the fixing nuts 163, 173, and 183 are screwed into the corresponding threads (see FIG. 3). The silicone rubber rings 161, 171, and 181 provide a completely airtight structure and effect for the outer circumferential surface of the hollow rotating shaft 21.

[0020] When actually assembling and applying a minimally invasive electric negative pressure hair removal device according to one embodiment of the present invention, as shown in Figure 1, the negative pressure tube connector 11 at the rear end is connected to the front end of the negative pressure tube 100 of the device, and when the negative pressure device (such as a negative pressure pump) inside the device is activated, negative pressure suction is generated in the negative pressure tube 100 and the perforating tube blade 30. When a surgeon holds the handle 10 and performs a hair follicle extraction operation, as shown in Figure 6, the rotation of the motor 20 controls the driving of the hollow rotating shaft 21 and the perforating tube blade 30. The surgeon aligns the front end of the perforating tube blade 30 with the hair follicle unit and rotates it precisely to remove the hair follicle unit 200. The removed hair follicle unit 200 is sucked by the perforating tube blade 30 through the negative pressure system, and the minute suction force allows the hair follicle unit 200 to be smoothly sucked and separated.

[0021] Please refer to Figure 7. As shown in Figure 7, a minimally invasive electric negative pressure hair harvesting device according to one embodiment of the present invention can be used in a surgery to create a hole in a hair region. Similarly, a motor 20 drives a hollow rotating shaft 21 and a perforating tube blade 30 to cut the hair transplant region, and the front end of the perforating tube blade 30 cuts out scalp tissue 300. At the same time, the suction force of the above-mentioned negative pressure system is used to separate the scalp tissue 300 from the original tissue, and the scalp tissue is sucked into a collection container inside the device by the negative pressure tube 100. This reduces the surgeon's effort in extracting the scalp tissue and shortens the surgery time.

[0022] The preferred embodiments of the present invention have been disclosed above so that those skilled in the art can understand, but they are not intended to limit the scope of the present invention. Various changes and modifications can be made within the scope of the present invention. Therefore, the scope of the claims for utility model registration of the present invention should be broadly interpreted to include such changes and modifications. [Explanation of symbols]

[0023] 10 Handle 11 Negative pressure pipe connection 12 Straight pipe housing 13 Front end lid 14 Rear end lid 15 Teflon bearings 16 First shaft seal structure 17 Second shaft seal structure 18 Third shaft seal structure 20 Motor 21 Hollow rotating shaft 30 Perforated tube blade 31 Shaft sleeve 40 Connecting sleeve 100 Negative pressure tube 111 Projection pipe section 112 Nut 113 Airtight Seal 161 Silicone rubber ring 162 Silicone rubber ring lid 163 Fixing nut 171 Silicone Rubber Ring 172 Silicone rubber ring lid 173 Fixing nut 181 Silicone Rubber Ring 182 Silicone rubber ring lid 183 Fixing nut 200 hair follicle units 300 Scalp tissue

Claims

1. A minimally invasive electric negative pressure hair removal device comprising a handle, a motor and a perforated tube blade, the handle is a tube body, and a negative pressure tube connection part is provided at a rear end of the handle; the motor is disposed within the handle and has a hollow rotating shaft, the hollow rotating shaft is inserted into the motor, the front end of the hollow rotating shaft protrudes from the front end of the handle and the rear end extends into the negative pressure pipe connection portion, The perforated pipe blade is a tubular blade and is inserted into the hollow rotary shaft from the front end thereof, and the perforated pipe blade is rotated by the hollow rotary shaft; A minimally invasive electric negative pressure hair removal device, characterized in that the front end of the perforated tube blade protrudes from the front end of the hollow rotating shaft, and the front end of the perforated tube blade cuts off hair follicle units or scalp tissue.

2. Further comprising a connecting sleeve, The minimally invasive electric negative pressure hair removal device according to claim 1, characterized in that the rear portion of the connecting sleeve is tightly fitted to the outer peripheral surface of the front end of the hollow rotating shaft, and the front portion is tightly fitted to the outer peripheral surface of the perforated tube blade.

3. the negative pressure pipe connection portion includes a protruding pipe portion protruding from a rear end of the handle, a nut threaded onto the protruding pipe portion, and an airtight seal positioned between the protruding pipe portion and the nut, 2. The minimally invasive electric negative pressure hair removal device according to claim 1, wherein the rear end of the perforating pipe blade extends rearward into the protruding pipe portion.

4. Two shaft sleeves are fitted on the outer circumferential surface of the perforated pipe blade, 2. The minimally invasive electric negative pressure hair removal device according to claim 1, wherein the outer circumferential surface of the shaft sleeve is in close contact with the inner wall of the hollow rotary shaft.

5. The handle includes a straight tube housing, a front end cap, and a rear end cap; The straight pipe housing is an aluminum alloy pipe, and the motor is fixed inside the straight pipe housing. the front end cover is used to fix and close the front end of the straight tube housing, and the front end of the hollow rotary shaft of the motor protrudes from the front end cover; the rear end cap is used to close the rear end of the straight pipe housing by fixing it thereto; 5. The minimally invasive electric negative pressure hair removal device according to claim 1, wherein the negative pressure tube connection portion is located at the rear end of the rear end cover.

6. the front end cover is a cone-shaped cover made of an aluminum alloy, A Teflon bearing is provided in the central axial hole of the conical lid, 6. The minimally invasive electric negative pressure hair removal device according to claim 5, wherein the Teflon bearing is tightly attached to the outer circumferential surface of the hollow rotary shaft near its front end.

7. a first shaft seal structure is provided within a central shaft hole of the front end cover; 7. The minimally invasive electric negative pressure hair removal device according to claim 6, wherein the first shaft seal structure is tightly attached to the outer circumferential surface of the hollow rotary shaft near its front end.

8. a second shaft seal structure is provided at a front end of the straight pipe housing; 6. The minimally invasive electric negative pressure hair removal device according to claim 5, wherein the second shaft seal structure is tightly attached to the outer circumferential surface of the hollow rotary shaft.

9. the rear end cover is a circular cover made of an aluminum alloy, the negative pressure tube connection portion is provided at the rear end of the rear end cover, A Teflon bearing is provided in the central axial hole of the rear end cap, 6. The minimally invasive electric negative pressure hair removal device according to claim 5, wherein the Teflon bearing is tightly attached to the rear end of the hollow rotary shaft.

10. a third shaft seal structure is provided within the central shaft hole of the rear end cap; 10. The minimally invasive electric negative pressure hair removal device according to claim 9, wherein the third shaft seal structure is tightly attached to the outer circumferential surface of the hollow rotary shaft near its rear end.

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