Writing brush
By designing a hair transplant pen and using a spring to control the distance between the blade and the pen core sleeve, the cutting depth of the hair transplant pen can be accurately controlled, which solves the problem of inaccurate cutting depth of existing hair transplant devices and improves the recovery speed after hair transplantation.
Patent Information
- Application Number
- CN202422413435.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-30
AI Technical Summary
During the hair transplantation process, the penetration depth of the needle of the existing hair transplant device is difficult to accurately control, resulting in slow wound healing and affecting the hair transplantation effect.
A brush for implanting calligraphy has been designed, comprising a handle, a front cover, a refill sleeve, a shaft core structure, a spring and a back cover. The distance between the blade and the refill sleeve is controlled by the compression of the spring, thereby achieving precise control of the depth of the blade penetrating the skin.
It achieves precise control of the penetration depth of the hair transplant pen, avoids excessive penetration, and improves the recovery speed after hair transplantation.
Smart Images
Figure CN223473835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hair transplantation technology, and in particular to a hair transplant brush. Background Art
[0002] Many people experience hair loss as they age, and hair transplantation can address this issue. Hair transplantation typically uses hair follicles from the back of the head as the source. These follicles are separated into single or multiple follicular units and then transplanted to desired areas such as the scalp, eyebrows, eyelashes, beard, chest, or pubic area using precise microsurgical techniques. The transplanted follicles then survive and grow naturally in their new location, thus restoring hair density and achieving a more aesthetically pleasing result. However, current hair transplant devices often use small clamps to insert the follicles. First, an 18 or 19 gauge needle is used to puncture the scalp, creating a small hole. Then, the small clamps are used to hold the root of the follicle and insert it into the hole. During the transplantation process, the needle penetrates deeper than the follicle needs to be implanted, resulting in slower wound healing and affecting the overall transplant outcome. Utility Model Content
[0003] The main objective of this invention is to provide a hair-planting brush to solve the above-mentioned technical problems and to accurately control the cutting depth of the blade.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A calligraphy brush includes a handle, a front cover, a refill sleeve, a shaft structure, a spring, and a back cover. The front cover and the back cover are respectively installed at both ends of the handle. The refill sleeve is fixed on the front cover. The spring is placed in the handle, and both ends of the spring abut against the refill sleeve and the shaft structure, respectively. The refill sleeve is provided with a shaft guide groove, and the shaft structure passes through the shaft guide groove.
[0006] As a preferred technical solution, the shaft core structure includes a shaft core, a shaft seat, and a pressing cover. The shaft seat is fixed on the pressing cover, and the end of the shaft core is fixed on the shaft seat. One end of the spring abuts against the pen refill sleeve, and the other end abuts against the shaft seat.
[0007] As a preferred technical solution, the end of the shaft is provided with a knife edge.
[0008] As a preferred technical solution, the shaft core structure also includes a limiting sleeve, which is fixed to the pressing cover and sleeved on the outer surface of the shaft seat, and the limiting sleeve abuts against the rear cover.
[0009] As a preferred technical solution, the end of the limiting sleeve is provided with a limiting block, the rear cover is provided with a limiting protrusion, and the limiting block abuts against the limiting protrusion.
[0010] As a preferred technical solution, the handle is provided with anti-slip texture.
[0011] The beneficial effects of this utility model are as follows: When the above-mentioned hair transplant pen is pressed, the pressing cover is pressed to make the pressing cover and the back cover ground. That is, when the spring is compressed to the maximum compression distance, the distance between the blade and the pen core sleeve is the depth of skin piercing. This achieves precise control of the depth of the blade piercing the skin, avoids excessive piercing, and avoids affecting the recovery speed after hair transplantation. Attached Figure Description
[0012] Figure 1 This is a cross-sectional view of the hair-planting brush involved in this utility model. DETAILED DESCRIPTION
[0013] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0014] like Figure 1 As shown, a hair follicle implantation brush includes a handle 1, a front cover 2, a refill sleeve 3, a shaft structure 5, a spring 6, and a rear cover 4. The front cover 2 and the rear cover 4 are threaded to both ends of the handle 1, respectively. The refill sleeve 3 is fixed on the front cover 2. The spring 6 is placed in the handle 1, and both ends of the spring 6 abut against the refill sleeve 3 and the shaft structure 5, respectively. The refill sleeve 3 is provided with a shaft guide groove 31. The shaft structure 5 passes through the shaft guide groove 31. By operating the shaft structure 5, the shaft structure 5 passes through the shaft guide groove 31 to implant hair follicles into the subcutaneous tissue.
[0015] The shaft core structure 5 includes a shaft core 53, a shaft seat 52, a limiting sleeve 54, and a pressing cover 41. The shaft seat 52 and the limiting sleeve 54 are fixed on the pressing cover 41, and the limiting sleeve 54 is sleeved on the outer surface of the shaft seat 52. The end of the shaft core 53 is fixed on the shaft seat 52. The shaft core 53 is inserted into the spring 6. One end of the spring 6 abuts against the pen refill sleeve 3, and the other end abuts against the shaft seat 52. The end of the shaft core 52 is provided with a blade 531 for piercing the skin. The end of the limiting sleeve 54 is provided with a limiting block 541, and the back cover 4 is provided with a limiting protrusion 41. The limiting block 541 abuts against the limiting protrusion 41, thereby reducing the compression distance of the spring 6. Pressing the pressing cover 41, the pressing cover 41 is grounded with the back cover 4. That is, when the spring 6 is compressed to the maximum compression distance, the distance between the blade 531 and the pen core sleeve 3 is the depth of skin puncture, thereby achieving precise control of the depth of the blade 531 piercing the skin, avoiding excessive piercing, and affecting the recovery speed after hair transplantation.
[0016] The handle 1 is provided with anti-slip texture 11, which ensures that the operator can firmly grasp the handle 1 and accurately implant the hair follicles into the designated position.
[0017] The embodiments described above are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this utility model should be included within the scope of this utility model patent application.
Claims
1. A type of calligraphy brush, characterized in that, The device includes a handle, a front cover, a pen refill sleeve, a core structure, a spring, and a rear cover. The front cover and the rear cover are respectively installed at both ends of the handle. The pen refill sleeve is fixed on the front cover. The spring is placed in the handle, and both ends of the spring abut against the pen refill sleeve and the core structure, respectively. The pen refill sleeve is provided with a core guide groove, and the core structure passes through the core guide groove.
2. The hair-planting brush according to claim 1, characterized in that, The shaft core structure includes a shaft core, a shaft seat, and a pressing cover. The shaft seat is fixed on the pressing cover, and the end of the shaft core is fixed on the shaft seat. One end of the spring abuts against the pen refill sleeve, and the other end abuts against the shaft seat.
3. The hair-planting brush according to claim 2, characterized in that, The end of the shaft is provided with a knife edge.
4. The hair-planting brush according to claim 3, characterized in that, The shaft core structure also includes a limiting sleeve, which is fixed to the pressing cover and sleeved on the outer surface of the shaft seat, and the limiting sleeve abuts against the rear cover.
5. The hair-planting brush according to claim 4, characterized in that, The end of the limiting sleeve is provided with a limiting block, and the rear cover is provided with a limiting protrusion. The limiting block abuts against the limiting protrusion.
6. The hair-planting brush according to claim 5, characterized in that, The handle is provided with anti-slip texture.