Hair extraction device

Abstract

The present application belongs to the technical field of hair transplantation tools, and particularly relates to a hair extraction device, which comprises a pen barrel, an end of the pen barrel is open, a first clamping arm is fixedly connected to the inner wall of the pen barrel, a punching hollow needle is fixedly connected to one end of the first clamping arm extending out of the pen barrel, a second clamping arm is fixedly connected to one end of the first clamping arm in the pen barrel, an included angle exists between the first clamping arm and the second clamping arm, a hair clamping piece is arranged at one end of the second clamping arm extending out of the pen barrel, and the hair clamping piece can abut against one end of the first clamping arm close to the punching hollow needle. A first pressing column is radially and slidingly connected to the pen barrel, and one end of the first pressing column in the pen barrel abuts against the second clamping arm. The present application can realize punching and hair extraction with hair follicles by using the same device, a tweezer can be not additionally used, the operation is convenient, and the hair extraction efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of hair transplantation devices, specifically relating to a hair extraction device. Background Technology

[0002] Hair transplantation involves using specialized instruments to completely remove hair follicles and surrounding tissue from their original location on the scalp. These follicles are then transplanted to a prepared area that is suitable for receiving hair. Hair follicles are taken from the back of the head and separated into single or multiple follicular units. Using precise microsurgical techniques, these units are transplanted to the desired area, such as the scalp, allowing them to survive and grow naturally. This replenishes hair and modifies the distribution of hair in a specific area for aesthetic purposes. Currently, hospitals typically use a method where a hole is punched in the donor area using a hollow needle on a hair extraction pen, and then tweezers are used to pluck the hair close to the root. While this method achieves the desired result and preserves the hair follicle, it requires the use of both the extraction pen and tweezers, making the procedure cumbersome and less efficient. Summary of the Invention

[0003] The present invention aims to provide a hair extraction device to solve the problem of low hair extraction efficiency when using two instruments, namely a hair extraction pen and tweezers.

[0004] To achieve the above objectives, the present invention provides a hair extraction device comprising a pen barrel with an open end. A first clamping arm is fixedly connected to the inner wall of the pen barrel. A hollow needle is fixedly connected to one end of the first clamping arm extending out of the pen barrel. A second clamping arm is fixedly connected to one end of the first clamping arm inside the pen barrel. An angle exists between the second clamping arm and the first clamping arm. A hair-clamping component is provided at one end of the second clamping arm extending out of the pen barrel. The hair-clamping component abuts against the end of the first clamping arm near the hollow needle. A first pressing post is radially slidably connected to the pen barrel. One end of the first pressing post inside the pen barrel abuts against the second clamping arm.

[0005] The working principle and beneficial effects of this method are as follows: In this method, a hollow needle is used to drill a hole at the hair follicle location in the patient's donor area. The hair passes through the hollow needle and emerges from the tip (the hair in the donor area is pre-trimmed to only 2-5mm to facilitate drilling). The doctor applies pressure to the first pressing column, causing it to slide towards the second clamping arm and apply a clamping force to the second clamping arm, bringing it closer to the first clamping arm. The hair clamping device on the second clamping arm holds the hair firmly against the first clamping arm, thereby extracting the hair and hair follicle. In other words, this method can achieve both drilling and hair follicle extraction using the same instrument, eliminating the need for additional tweezers, making operation convenient, and improving hair retrieval efficiency.

[0006] Optionally, the pen barrel is provided with a first radial pipe, which communicates with the internal space of the pen barrel, and the first pressing column is axially slidably connected inside the first radial pipe.

[0007] In this design, the first pressing column is axially slidably connected to the first radial pipe, which increases the length of the first pressing column that restricts its sliding motion, thereby ensuring that the first pressing column can slide more stably along the pen barrel.

[0008] Optionally, the first pressing column includes a first cylindrical segment and a second cylindrical segment. The diameter of the first cylindrical segment is larger than the diameter of the second cylindrical segment. The first cylindrical segment is axially slidably connected inside the first radial pipe. The end of the first radial pipe away from the central axis of the pen barrel is provided with an end wall. A through hole is opened on the end wall for the second cylindrical segment to pass through. The diameter of the through hole is smaller than the diameter of the first cylindrical segment.

[0009] In this design, the first cylindrical section cannot pass through the through hole on the end wall of the first radial pipe, thus preventing the first pressing column from falling off the pen barrel.

[0010] Optionally, a third clamping arm is fixedly connected to the inner wall of the pen barrel, and a fourth clamping arm is fixedly connected to one end of the third clamping arm located inside the pen barrel. A second pressing post is radially slidably connected to the pen barrel, and one end of the second pressing post located inside the pen barrel abuts against the fourth clamping arm. The third and fourth clamping arms are located at one end of the pen barrel, and the first and second clamping arms are located at the other end of the pen barrel.

[0011] In this procedure, after the hollow needle is used to make a hole, the doctor applies pressure to the first pressing post. The hair extraction device on the second clamping arm may fail to press the hair firmly onto the first clamping arm, which may result in the hair being unable to be extracted after the hole is made. In this case, after all the hole-making operations are completed, the doctor flips the pen barrel so that the third and fourth clamping arms are aligned with the patient's donor area, applies pressure to the second pressing post, and moves the fourth clamping arm closer to the third clamping arm, thereby extracting the remaining hair follicle units in the donor area after the hole is made. There is no need to switch to tweezers for hair extraction, reducing the number of instruments used.

[0012] Optionally, the pen barrel is provided with a second radial pipe, which communicates with the internal space of the pen barrel, and the second pressing column is axially slidably connected inside the second radial pipe.

[0013] In this design, the second pressing column is axially slidably connected to the second radial pipe, which increases the length of the second pressing column that restricts its sliding motion, thereby ensuring that the second pressing column can slide more stably along the pen barrel.

[0014] Optionally, both the third and fourth clamping arms have hair-clamping bends at the ends extending from the pen barrel.

[0015] In this design, the hair-clamping bend makes it easier for doctors to clamp hair.

[0016] Optionally, both the second and fourth clamping arms are made of stainless steel.

[0017] In this design, the second and fourth clamping arms, made of stainless steel, have deformation and deformation recovery capabilities, and a long service life.

[0018] Optionally, the inner peripheral wall of the hollow punch needle is provided with barbs, and the free end of the barbs faces the first clamping arm.

[0019] In this solution, the barbs inside the hollow punch needle can hook onto the hair follicle, thereby bringing the hair follicle out when the hollow punch needle is retracted. This allows it to work in conjunction with the hair clip to extract the hair follicle, improving the success rate of hair follicle extraction.

[0020] Optionally, the barb is located at one end of the punched hollow needle near the first clamping arm.

[0021] In this design, the barb is located at the end of the hollow punch needle near the first clamp arm. The barb hooks onto the scalp portion of the hair follicle unit inside the hollow punch needle. Thus, compared to the design where the barb is located at the end of the hollow punch needle away from the first clamp arm, this design rarely or never scratches the hair follicle.

[0022] Optionally, the hair clip is made of rubber.

[0023] In this design, the hair clip made of rubber is elastic and can effectively hold the hair against the first clip arm, thereby effectively clamping the hair and hair follicle. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the hair extraction device in Embodiment 1 of the present invention;

[0025] Figure 2 This is a front view of the hair extraction device in Embodiment 1 of the present invention;

[0026] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0027] Figure 4 This is a schematic diagram of the structure of the first clamping arm, the second clamping arm, the third clamping arm, and the fourth clamping arm in Embodiment 1 of the present invention;

[0028] Figure 5 for Figure 2 Cross-sectional view along the BB direction;

[0029] Figure 6 An axial cross-sectional view of the perforated hollow needle in the hair extraction device of Embodiment 2 of the present invention. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method:

[0031] The markings in the accompanying drawings include: pen barrel 1, first clamping arm 2, first connecting rod 3, hollow punch 4, second clamping arm 5, hair clip 6, first pressing post 7, first cylindrical section 701, second cylindrical section 702, first radial pipe 8, end wall 810, through hole 811, third clamping arm 9, second connecting rod 10, fourth clamping arm 11, hair clip elbow 12, second pressing post 13, third cylindrical section 131, fourth cylindrical section 132, second radial pipe 14, end cap 141, channel 1411, barb 15.

[0032] Example 1

[0033] This embodiment is basically as follows: Figure 1 and Figure 2 As shown: A hair extraction device includes a pen barrel 1 with openings at both ends. A first clamping arm 2 is welded to the inner wall of the pen barrel 1, and is combined with... Figure 3 As shown, the first clamping arm 2 is welded to the inner wall of the pen barrel 1 via the first connecting rod 3. A hollow needle 4 is integrally formed at the end of the first clamping arm 2 extending out of the pen barrel 1, and a second clamping arm 5 is integrally formed at the end of the first clamping arm 2 inside the pen barrel 1, as shown... Figure 4 As shown, there is an angle between the second clamping arm 5 and the first clamping arm 2. The first clamping arm 2, the second clamping arm 5, and the hollow punch 4 are all made of stainless steel. A hair clip 6 is provided at the end of the second clamping arm 5 that extends out of the pen barrel 1. When the second clamping arm 5 is subjected to force and approaches the first clamping arm 2, the hair clip 6 can abut against the end of the first clamping arm 2 that is close to the hollow punch 4. In this embodiment, the hair clip 6 is made of rubber and is bonded to the second clamping arm 5.

[0034] Combination Figure 3 As shown, a first pressing post 7 is radially slidably connected to the pen barrel 1. One end of the first pressing post 7 located inside the pen barrel 1 abuts against the second clamping arm 5. Specifically, a first radial pipe 8 is welded onto the pen barrel 1, and the first radial pipe 8 communicates with the internal space of the pen barrel 1. The first pressing post 7 includes a first cylindrical section 701 and a second cylindrical section 702. The diameter of the first cylindrical section 701 is larger than the diameter of the second cylindrical section 702. The first cylindrical section 701 is axially slidably connected to the first radial pipe 8. An end wall 810 is integrally formed at the end of the first radial pipe 8 away from the central axis of the pen barrel 1. A through hole 811 is opened on the end wall 810 for the second cylindrical section 702 to pass through. The diameter of the through hole 811 is smaller than the diameter of the first cylindrical section 701, thereby ensuring that the first pressing post 7 will not detach from the pen barrel 1.

[0035] A third clamping arm 9 is welded to the inner wall of the pen barrel 1, and, combined with Figure 5As shown, the third clamping arm 9 is welded to the inner wall of the pen barrel 1 via the second connecting rod 10. Figure 4 As shown, the third clamping arm 9 has a fourth clamping arm 11 integrally formed at one end inside the pen barrel 1, and there is an angle between the third clamping arm 9 and the fourth clamping arm 11. The first clamping arm 2 and the second clamping arm 5 are located at the left end of the pen barrel 1, and the third clamping arm 9 and the fourth clamping arm 11 are located at the right end of the pen barrel 1. The ends of the third clamping arm 9 and the fourth clamping arm 11 that extend out of the pen barrel 1 are both integrally formed with hair clipping bends 12. The third clamping arm 9, the fourth clamping arm 11 and the hair clipping bends 12 are all made of stainless steel.

[0036] Combination Figure 5 As shown, a second pressing post 13 is radially slidably connected to the pen barrel 1. One end of the second pressing post 13 located inside the pen barrel 1 abuts against the fourth clamping arm 11. Specifically, a second radial pipe 14 is welded onto the pen barrel 1, and the second radial pipe 14 communicates with the internal space of the pen barrel 1. The second pressing post 13 includes a third cylindrical section 131 and a fourth cylindrical section 132. The diameter of the third cylindrical section 131 is larger than the diameter of the fourth cylindrical section 132. The third cylindrical section 131 is axially slidably connected inside the second radial pipe 14. An end cap 141 is integrally formed at the end of the second radial pipe 14 away from the central axis of the pen barrel 1. The end cap 141 has a channel 1411 through which the fourth cylindrical section 132 passes. The diameter of the channel 1411 is smaller than the diameter of the third cylindrical section 131, thereby ensuring that the second pressing post 13 will not detach from the pen barrel 1.

[0037] In use, the doctor holds the pen barrel 1, aligns the hollow needle 4 with the hair follicle in the donor area, and applies force to embed the hollow needle 4 into the donor area to make a hole. After the hollow needle 4 is embedded in the donor area, the hair in the hair follicle unit inside the hollow needle 4 passes through the hollow needle 4 and emerges from the tip of the hollow needle 4. At this time, the doctor's thumb applies pressure to the first pressing post 7, causing the first pressing post 7 to slide into the pen barrel 1, thereby applying a clamping force to the second clamping arm 5, which in turn brings the second clamping arm 5 closer to the first clamping arm 2. In this way, the hair clamping element 6 on the second clamping arm 5 can hold the hair emerging from the tip of the hollow needle 4 against the first clamping arm 2, thus achieving the clamping of the hair. Next, the doctor moves the pen barrel 1, causing the hollow needle 4 to retract away from the donor area. Since the hair is held between the hair clip 6 and the first clip arm 2, the hair is pulled out along with the hair follicle, that is, the hair follicle unit located inside the hollow needle 4 is pulled out together.

[0038] Then, the doctor releases the first pressing post 7, which no longer applies pressure to the second clamping arm 5. The second clamping arm 5, under its own deformation recovery ability, moves away from the first clamping arm 2 and resets, causing the hair clamp 6 to leave the first clamping arm 2, thus releasing the hair. Simultaneously, the base of the hair follicle unit inside the hollow punch 4 adheres to the scalp of the donor area. The doctor moves the pen barrel 1 away from the donor area, causing the hair follicle unit inside the hollow punch 4 to detach from the hollow punch 4 and remain on the scalp of the donor area, allowing the doctor to perform subsequent punching and hair extraction procedures.

[0039] Additionally, if the hair clamp 6 fails to press the hair in the punched area firmly against the first clamp arm 2 after punching, that is, the operation only achieved punching but failed to extract the hair along with the hair follicle. In this case, the doctor continues with subsequent punching and hair extraction operations. After all punching operations are completed, the doctor flips the pen barrel 1 so that the hair clamping bends 12 on the third clamp arm 9 and the fourth clamp wall 11 face the donor area. The doctor's thumb applies pressure to the second pressing column 13, which slides into the pen barrel 1, applying a clamping force to the fourth clamp arm 11, bringing the fourth clamp arm 11 closer to the third clamp arm 9, until the hair clamping bends 12 on the fourth clamp arm 11 press the hair in the hair follicle unit left in the hole after punching against the hair clamping bends 12 on the third clamp arm 9. Then, force is applied to pull the hair, and the hair follicle unit is pulled out, thus achieving the extraction of the hair follicle unit remaining after punching.

[0040] In summary, in this embodiment, doctors can achieve both punching and hair follicle extraction using only the "hair extraction device" described in this embodiment, without the need for additional tweezers, thus reducing the number of instruments used and improving hair extraction efficiency.

[0041] Example 2

[0042] The difference between this embodiment and Embodiment 1 is that: [The following is a combination of the two embodiments] Figure 6 As shown, a barb 15 is integrally formed on the inner peripheral wall of the hollow punch 4. The free end of the barb 15 faces the first clamping arm 2. The barb 15 is located at the end of the hollow punch 4 near the first clamping arm 2, and the distance between the barb 15 and the top of the hollow punch 4 is 0.5-1.5mm.

[0043] In this embodiment, after the hollow needle 4 is inserted into the donor area, when the doctor applies force to retract the hollow needle 4 away from the donor area, the barbs 15 inside the hollow needle 4 hook onto the scalp portion of the hair follicle unit inside the hollow needle 4, thereby assisting the hair clamp 6 in bringing the hair follicle unit out of the hole formed in the donor area, thus improving the success rate of hair follicle extraction. Moreover, after the hair follicle unit is brought out of the hole formed in the donor area, the bottom of the hair follicle unit inside the hollow needle 4 adheres to the scalp of the donor area. When the doctor moves the pen barrel 1 away from the donor area, the hair follicle unit inside the hollow needle 4 detaches from the hollow needle 4, thus leaving the hair follicle unit on the scalp of the donor area.

[0044] The above are merely embodiments of the present invention. The invention is not limited to the fields covered by these embodiments. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can improve and implement this solution based on the guidance provided in this application and their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness or practicality of the invention. The scope of protection claimed in this application should be determined by the content of its claims. The specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A hair extraction device, characterized in that: The device includes a pen barrel with an open end. A first clamping arm is fixedly connected to the inner wall of the pen barrel. A hollow punch is fixedly connected to the end of the first clamping arm extending out of the pen barrel. A second clamping arm is fixedly connected to the end of the first clamping arm inside the pen barrel. There is an angle between the second clamping arm and the first clamping arm. A hair clip is provided at the end of the second clamping arm extending out of the pen barrel, and the hair clip can abut against the end of the first clamping arm near the hollow punch. A first pressing post is radially slidably connected to the pen barrel. The end of the first pressing post inside the pen barrel abuts against the second clamping arm. A first radial pipe is provided on the pen barrel, communicating with the internal space of the pen barrel. The first pressing post is axially slidably connected within the first radial pipe. The pressing column includes a first cylindrical section and a second cylindrical section. The diameter of the first cylindrical section is larger than that of the second cylindrical section. The first cylindrical section is axially slidably connected to the first radial pipe. The end of the first radial pipe away from the central axis of the pen barrel is provided with an end wall. A through hole is opened on the end wall for the second cylindrical section to pass through. The diameter of the through hole is smaller than that of the first cylindrical section. A third clamping arm is fixedly connected to the inner wall of the pen barrel. A fourth clamping arm is fixedly connected to the end of the third clamping arm located inside the pen barrel. A second pressing column is radially slidably connected to the pen barrel. The end of the second pressing column located inside the pen barrel abuts against the fourth clamping arm. The third and fourth clamping arms are located at one end of the pen barrel, and the first and second clamping arms are located at the other end of the pen barrel.

2. A hair extraction device according to claim 1, characterized in that: The pen barrel is provided with a second radial pipe, which is connected to the internal space of the pen barrel, and the second pressing column is axially slidably connected to the second radial pipe.

3. The hair extraction device of claim 1, wherein: Both the third and fourth clamping arms have hair-clamping bends at the ends extending from the pen barrel.

4. The hair extraction device of claim 1, wherein: Both the second and fourth clamping arms are made of stainless steel.

5. The hair extraction device of claim 1, wherein: The inner circumferential wall of the hollow punch is provided with barbs, and the free end of the barbs faces the first clamping arm.

6. The hair extraction device according to claim 5, characterized in that: The barb is located at one end of the punched hollow needle near the first clamping arm.

7. The hair extraction device of claim 1, wherein: The hair clip is made of rubber.

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