KR20200061423A - A hair punch needle for extracting donor hair - Google Patents

Abstract

Disclosed is a hair punch needle for extracting a donor hair, which differentiates a cut sectional area when cutting the skin surrounding the donor hair from a cut sectional area when cutting the skin surrounding the upper part of a hair follicle to minimize the entire area of the cut skin. According to the present invention, the hair punch needle for extracting a donor hair comprises a main body having one end inserted into a front end of a handpiece to be rotated by receiving power of the handpiece and allow a cutting edge, which is the other end, to be inserted into the scalp and inserting the extracted donor hair into an internal space while an inner material having a first thermal expansion coefficient is coupled to an external method having a second thermal expansion coefficient, wherein the first thermal expansion coefficient is greater than the second thermal expansion coefficient.

Description

Hair punch needle for hair extraction {A hair punch needle for extracting donor hair}

The present invention relates to a hair punch needle for hair extraction, in particular, it is possible to separate the hair follicles and cells (scalp cells) to the maximum to minimize damage to the hair follicles due to the binding force between the hair follicles and cells when extracting hair. It relates to a hair punch needle for hair extraction.

Hair loss occurs for a variety of causes, regardless of whether it is male or female, and is complemented by hair transplantation. Hair transplantation is a technique for transplanting new hair into a region where hair is lost. In accordance with the method of obtaining the hair to be transplanted, an incised hair transplant (FUSS; Follicular Unit Strip Surgery) and a non-incised hair transplant (FUE; Follicular Unit Extraction) It can be separated by.

Incisional hair transplantation has the disadvantage that scarring is inevitable due to the method of incising and removing the scalp in a certain area, then extracting the hair follicles from the incised scalp and transplanting them into the necessary areas, and sealing the incised area with a thread.

Non-incisional hair transplantation is a method of extracting and transplanting hair from the patient's skin into the hair follicle unit using a hair follicle separator (handpiece) without incision of the patient's scalp, and preventing scar formation over a wide area after the procedure. It has the advantage of minimizing the patient's feeling of rejection due to skin incision.

1 shows the structure of the hair.

Referring to FIG. 1, hair can be divided into hair shafts protruding out of the skin, hair roots submerged in the skin, and hair follicles surrounding the hair roots, and when hair is extracted, hair follicles must also be extracted to completely regenerate hair after transplantation. .

A punching needle is used for the handpiece used for non-incisional hair transplantation, and the handpiece is used to separate the edge of the hair from the scalp cells while rotating the punching needles in which the hair to be extracted is inserted.

Figure 2 describes the Republic of Korea Patent Registration 10-1873715 (punching needle for hair extraction: June 26, 2018).

Figure 2a is a perspective view of the punching needle for hair extraction, Figure 2b illustrates the process of hair extraction by the punching needle for hair extraction, Figure 2c shows the working state of each punching needle for hair extraction.

2A and 2B, after receiving the hair 3 in the receiving space portion 50 formed in the body 20 of the punching needle, the body 20 rotating by a handpiece (not shown) removes the hair. It can be seen that the hair follicle and scalp cells of the hair are cut and separated while rotating, and then the hair is separated from the scalp cells using tweezers. 2c, it can be seen that the diameter of the tip of the punching needle, that is, the cutting edge of the skin (between the blue dotted line) is wider than the diameter of the body 20 (between the red dotted line).

The maximum length of the skin diameter that is incised by the configuration and operation as shown in FIG. 2C should correspond to the diameter of the hair follicle, but since the upper part of the hair follicle is shorter in diameter than the hair follicle, the incision diameter of the upper part of the hair follicle excluding the hair follicle incises the follicle It does not have to be the same as the required diameter. Nevertheless, in the invention shown in FIG. 2, the diameter of the part cut by the punching needle has a disadvantage that it is determined by the diameter of the cutting edge portion 30.

The technical problem to be solved by the present invention is to minimize the total area of the incised skin by differentiating the incised cross-sectional area when incising the skin surrounding the hair to be extracted and the incised cross-sectional area when incising the skin surrounding the upper part of the hair follicle. It is to provide a hair punch needle for hair extraction to enable.

Hair punch needle for hair extraction according to the present invention for achieving the above technical problem, one end is inserted into the tip of the handpiece and rotated by receiving the power of the handpiece so that the cutting edge, the opposite end, is inserted into the scalp, An internal material having a thermal expansion coefficient and an external material having a second thermal expansion coefficient are combined, and include a body for inserting the extracted hair into an empty space therein, wherein the first thermal expansion coefficient is greater than the second thermal expansion coefficient. It is characteristic.

Hair punch needle for hair extraction according to the present invention has the advantage of minimizing damage to the hair follicles due to the binding force between the hair follicles and the cells when extracting hair since the hair follicle and the cells (scalp cells) can be separated to the maximum. .

1 shows the structure of the hair.
Figure 2 describes the Republic of Korea Patent Registration 10-1873715 (Punching needle for hair extraction: June 26, 2018).
3 illustrates a hair punch needle for hair extraction according to the present invention.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the contents described in the accompanying drawings, which illustrate exemplary embodiments of the present invention.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. The same reference numerals in each drawing denote the same members.

3 illustrates a hair punch needle for hair extraction according to the present invention.

3A shows a hair punch needle for hair extraction and a heat supply means, and FIG. 3B shows a state in which the cutting edge portion is refracted due to different thermal expansion coefficients of the hair punch needle for hair extraction.

Referring to FIG. 3, the hair punch needle for hair extraction is inserted into the tip of the handpiece (not shown) and rotated by receiving the power of the handpiece so that the opposite cutting edge 312 is inserted into the scalp. And, the inner material 313 having a first thermal expansion coefficient and the outer material 314 having a second thermal expansion coefficient are combined and made of a body 310 that inserts hair to be extracted into an empty space inside.

The thickness of the cylindrical body 310, it is preferable to maximize the cutting efficiency by making it thinner toward the cutting edge 312 from a certain portion of the body 310.

In order for the cutting edge 134 to be deformed in the form of 3b by two materials 313 and 314 having different thermal expansion coefficients, the first thermal expansion coefficient should be greater than the second thermal expansion coefficient.

Referring to FIG. 3B, when the diameter of the cutting edge 134 is not affected by the thermal expansion coefficient (d1) and the thermal expansion coefficient is affected by two materials 313 and 314 having two different thermal expansion coefficients. It can be seen that the times (d2) are different. Of course, it can be seen that the diameter of the cutting edge 312 is larger than the diameter d1 when the diameter d2 when not affected by different thermal expansion coefficients.

As a heat source applied to the two materials 313 and 314, it is possible to utilize the rotational frictional force between the scalp cells and the body 310. Since the body 310 rotates and inserts into cells at the beginning, there is little frictional heat, so it does not have the shape shown in FIG. 3B, but when the body 310 penetrates to a certain depth of the cell, the magnitude of the frictional force also increases, so the hair follicle is near. In can be made to have the form as shown in Figure 3b. This may be achieved by measuring the correlation between the rate of change of frictional force and the depth of hair follicles, and setting the difference in thermal expansion coefficients of the two materials 313 and 314.

On the other hand, an embodiment to further include heat supply means 320 for applying heat to the inner material 313 and the outer material 314 is possible. In this case, the degree of heat supplied from the heat supply means 320 may be controlled and adjusted according to the depth at which the body 310 is inserted into the cells.

In the above, the technical idea of the present invention has been described with reference to the accompanying drawings, but this is a preferred embodiment of the present invention and is not intended to limit the present invention. In addition, it is obvious that any person skilled in the art to which the present invention pertains can make various modifications and imitation without departing from the scope of the technical spirit of the present invention.

310: body
311: one end of the body 312: cutting edge
313: inner material 314: outer material
320); Heat supply means

Claims (3)

One end is inserted into the tip of the handpiece so that the cutting edge, which is the opposite end, is inserted into the scalp while rotating by receiving the power of the handpiece. A body for inserting hair to be extracted into the empty space inside; It includes,
Hair punch needle for hair extraction, characterized in that the first coefficient of thermal expansion is greater than the second coefficient of thermal expansion. In claim 1, The thickness of the body,
Hair punch needle for hair extraction, characterized in that it becomes thinner toward the cutting edge from a certain portion of the body. In claim 1, wherein the body,
Hair punch needle for hair extraction characterized in that it comprises a heat supply means for applying heat to the inner material and the outer material.

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