CN215899748U

CN215899748U - Microneedle for hair planting and microneedle kit

Info

Publication number: CN215899748U
Application number: CN202121644640.8U
Authority: CN
Inventors: 尹梓贻
Original assignee: Beijing Biliansheng Medical Beauty Clinic Co ltd
Current assignee: Beijing Biliansheng Non Shaving And Hair Grafting Medical Beauty Clinic Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-02-25
Anticipated expiration: 2031-07-19

Abstract

Microneedles for hair planting and microneedle kits for hair planting are disclosed. The microneedle comprises a grip portion made of a plastic material disposed in a lengthwise direction of the microneedle, and a handle portion and a working portion made of stainless steel, the handle portion being shaped like a cylinder, the working portion being disposed at one end of the handle portion and extending from the handle portion in a direction away from the handle portion, the grip portion being fixedly connected to the handle portion at the other end of the handle portion opposite to the working portion, the working portion comprising inclined surfaces on opposite sides of the working portion in a lateral direction such that the working portion tapers in a wedge-like manner from a proximal end connected to the handle portion to a distal end remote from the handle portion and forms a blade at the distal end of the working portion.

Description

Microneedle for hair planting and microneedle kit

Technical Field

The utility model relates to the technical field of hair planting, in particular to a microneedle for hair planting and a microneedle kit for hair planting.

Background

Hair transplantation is a process of extracting hair follicles by taking a part of tissue around the hair follicles out of the skin of a donor portion in situ, and then planting the extracted hair follicles in a desired position. The current planting instruments commonly used in hair planting mainly include: the planting pen is characterized in that a pen point of the planting pen is like a syringe needle, when the planting pen is used, hair follicles need to be placed at the head of the planting pen by tweezers, and then the hair follicles need to be planted; the medical injector type planting needle has the same planting operation mode as that of a planting pen, comprises a hollow needle body, and is provided with a hair planting hole close to a needle head of the injector, when in use, a forceps is required to put hair follicles into the hair planting hole, and then the hair follicles are planted to realize hair planting in a plug-and-plant mode; and the cutting edge of the gem knife is sharp, the hardness is very high, and because the length is limited, the gem knife is generally used for uniformly punching holes before planting hair follicles, so that the gem knife is suitable for the condition of large-area hair planting.

SUMMERY OF THE UTILITY MODEL

The inventors have found that there are problems with the hair-planting methods currently used and the instruments used. For example, since many of the cuts generated by hair planting are circular or arc-shaped, it is difficult to secure the hair planting direction, and the hair growth direction after hair planting is deviated, and the hair is entangled by interference with surrounding hair, which affects the final hair planting effect. In addition, the punching depth of the planting hole is difficult to accurately judge in the planting process by adopting the current planting technology, and the defect of hair planting caused by too deep or too shallow punching depth can be caused. In addition, the special instruments such as the gem knife, the planting pen and the like adopted at present have complex structures and higher manufacturing cost and use cost. Accordingly, there is room for improvement in the appliances employed for hair planting to address at least one or all of the above-mentioned problems.

According to one or more embodiments of the present invention, there is provided a microneedle for hair planting. The microneedle may include a grip portion made of a plastic material disposed in a lengthwise direction of the microneedle, and a handle portion and a working portion made of stainless steel. The shank portion may be shaped as a cylinder. The working portion may be disposed at one end of the shank portion and extend from the shank portion in a direction away from the shank portion. The grip portion may be fixedly connected to the handle portion at another end of the handle portion opposite the working portion. The working portion may include inclined surfaces on laterally opposite sides of the working portion such that the working portion tapers conically from a proximal end connected to the shank portion to a distal end remote from the shank portion and forms a blade at the distal end of the working portion.

According to the microneedle for hair planting provided by the embodiment of the utility model, the working part of the microneedle can generate a straight incision in the process of planting hair by enabling the working part to be tapered from the proximal end connected with the handle part to the distal end far away from the handle part in a wedge shape and forming a straight blade part at the distal end of the working part. On the one hand, a straight blade facilitates the operator to obtain an incision with an accurate orientation during the hair planting operation. On the other hand, compared with the circular or arc-shaped incision formed by the hair planter similar to an injector which is conventionally adopted at present, the straight incision is easier to ensure the accurate incision orientation, so that the accurate planting direction of the hair follicle is ensured, the clamping force on the planted hair follicle is also enhanced, the planted hair follicle can grow towards the expected direction without deflection and twining of the hair, and the hair planting effect and the hair survival rate are ensured. In addition, the size of the incision produced with the microneedle according to the present invention is about one third smaller than that of the circular or circular arc-shaped incision produced with the conventional syringe type implanting needle, compared to that with the conventional medical syringe type implanting needle. Thus, using microneedles according to the present invention allows for a greater number of straight incisions to be made for the same implantation area, which increases the number of hair follicles implanted, resulting in a higher density of hair implantation and a better hair implantation result. In addition, the micro-needle can reduce the wound on the skin, has high survival rate of the hair follicle, and is not easy to cause postoperative infection.

In some alternative embodiments, the blade may pass through the central axis of the microneedle such that the extension length of the blade in the radial direction of the microneedle is the same as the diameter of the shank portion.

In some alternative embodiments, the total length of the handle portion and the working portion may be in the range of 3cm to 5cm, and the length of the holding portion in the lengthwise direction of the microneedles may be 1.5 cm.

In some alternative embodiments, the total length of the handle portion and the working portion may be 4cm, wherein the length of the working portion may be 0.5 cm.

In some alternative embodiments, a plurality of grooves having a ring shape may be provided at a portion of the handle portion adjacent to the working portion, and the plurality of grooves may be configured such that the microneedles can be bent at one of the plurality of grooves, thereby forming an angle between the handle portion and the working portion.

In some alternative embodiments, a first groove of the plurality of grooves may be disposed 6mm from the distal end of the working portion and a second groove of the plurality of grooves may be disposed 7mm from the distal end of the working portion.

In some alternative embodiments, the grip portion may include a press portion and a lateral side portion. The pressing portion may be provided at an end of the grip portion opposite to the end to which the handle portion is connected. The lateral side portion may extend from the pressing portion of the grip portion toward the handle portion in a lengthwise direction of the microneedle. The lateral side portion may include two pinching side portions and two transition side portions alternately arranged around a central axis of the microneedle, wherein the two pinching side portions and the inclined surface of the working portion may be arranged on opposite sides of the holding portion in a lateral direction in the same direction. The transition side portion may connect the two grip side portions at opposite ends of the grip side portion.

In some alternative embodiments, at least one of the press portion and the pinch side portion may be configured in a concave configuration.

In some alternative embodiments, the grip portion may be configured to taper from the pressing portion via the lateral side towards the handle portion of the microneedle.

In some alternative embodiments, the length of the edge of the pinch side portion connected to the pressing portion may be 1cm, the length of the edge of the transition side portion connected to the pressing portion may be 0.7cm, and the length of the pinch side portion and the transition side portion in the longitudinal direction of the microneedles may be 1.5 cm.

There is also provided, in accordance with one or more embodiments of the present invention, a microneedle for hair planting, the microneedle including a shaft portion made of stainless steel disposed in a lengthwise direction of the microneedle, the shaft portion being shaped like a cylinder, and a working portion disposed at one end of the shaft portion and extending from the shaft portion in a direction away from the shaft portion, the working portion including inclined surfaces on opposite sides in a lateral direction of the working portion such that the working portion tapers in a wedge shape from a proximal end connected to the shaft portion to a distal end remote from the shaft portion and forms a blade at the distal end of the working portion.

In some alternative embodiments, the total length of the handle portion and the working portion may be in the range of 4.5cm to 6.5 cm.

In some alternative embodiments, the total length of the handle portion and the working portion may be 5cm, wherein the length of the working portion may be 0.5 cm.

According to one or more embodiments of the present invention, a microneedle kit for hair planting is provided. A microneedle kit may comprise a plurality of microneedles for hair planting according to any of the embodiments described above.

In some alternative embodiments, the length of each microneedle in the microneedle kit can be the same. In some alternative embodiments, the diameter of the shaft portion of each microneedle in the microneedle kit can be different from one another. In some alternative embodiments, the holding portion of each microneedle in the microneedle kit may be made of plastic materials of different colors to correspond to different diameters of the handle portion, respectively.

In some alternative embodiments, the microneedle kit may comprise: a microneedle having a handle portion of 0.6mm in diameter and a holding portion made of a blue plastic material; a microneedle having a diameter of 0.7mm in the handle portion and a holding portion made of a black plastic material; a microneedle having a diameter of 0.8mm in the handle portion and a holding portion made of a green plastic material; a microneedle having a diameter of 0.9mm in the handle portion and a holding portion made of a yellow plastic material; and a microneedle having a diameter of 1mm in the handle portion and a holding portion made of a white plastic material.

In some alternative embodiments, each microneedle of the microneedle kit may be provided with a cannula. Optionally, the sleeve is a plastic sleeve, in particular a plastic sleeve. The inner diameter of the cannula may be equal to or smaller than the diameter of the handle portion of the respective microneedle in the microneedle kit, respectively, such that the handle portion and the working portion of the respective microneedle can be tightly inserted into the cannula and not exposed outside the cannula.

Drawings

The features, advantages and technical and industrial significance of the present invention will be described in detail below with reference to the accompanying drawings in conjunction with exemplary embodiments according to the present application. The above-defined and other aspects of the present invention will become apparent from the exemplary embodiments to be described hereinafter. In the drawings, like reference numerals designate identical or similar components or steps, and in which:

fig. 1 illustrates a perspective view of a microneedle for hair planting according to an exemplary embodiment of the present invention;

FIG. 1A shows an enlarged view of portion M of FIG. 1;

fig. 2 illustrates a front view of a microneedle for hair planting according to an alternative exemplary embodiment of the present invention;

fig. 3 shows a side view of a microneedle for hair planting according to an alternative exemplary embodiment of the present invention;

fig. 4 illustrates a perspective view of a microneedle for hair planting according to another exemplary embodiment of the present invention;

fig. 5 shows a side view of a microneedle for hair planting according to yet another exemplary embodiment of the present invention, which may be one of a plurality of microneedles of a microneedle kit according to the present invention; and

fig. 5A shows an enlarged view of the portion N in fig. 5.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and specific exemplary embodiments.

First, a microneedle for hair planting according to an exemplary embodiment of the present invention will be described with reference to fig. 1 and 1A. Fig. 1 illustrates a perspective view of a microneedle for hair planting according to an exemplary embodiment of the present invention. Fig. 1A shows an enlarged view of a portion M of fig. 1.

As shown in fig. 1 and 1A, the microneedle 1 for hair planting as an exemplary embodiment may include a grip portion 10, a handle portion 20, and a working portion 30 disposed in a lengthwise direction (a z-axis direction as shown in fig. 1) of the microneedle 1. The grip portion 10 may be made of a plastic material. The handle portion 20 and working portion 30 may be made of stainless steel, particularly medical grade stainless steel. The holding part made of plastic, the handle part made of stainless steel and the working part can ensure the sanitary standard of the microneedle and have good cost benefit.

In the illustrated exemplary embodiment, the shank portion 20 may be shaped cylindrically, in particular having a cylindrical solid body. The cylindrical solid body structure of the handle portion according to the present invention can simplify the manufacturing process of the microneedle while satisfying the strength and rigidity requirements of the microneedle, thereby achieving good cost-effectiveness while ensuring the operational stability of the microneedle.

As shown, the working portion 30 is disposed at one end of the handle portion 20 and extends from the handle portion 20 in a direction away from the handle portion 20. Grip portion 10 is fixedly connected to handle portion 20 at the other end of handle portion 20 opposite working portion 30. In the illustrated exemplary embodiment, the working portion 30 of the microneedle 1 extends away from the handle portion 20 in the z-axis direction in the drawing from the distal end of the handle portion 20 opposite to the proximal end to which the grip portion 10 is connected.

In an exemplary embodiment of the present invention, the working portion 30 of the microneedle 1 for hair planting may include an inclined surface 31. The inclined surfaces 31 are provided on laterally opposite sides of the working portion 30 such that the working portion 30 tapers in a wedge shape from a proximal end connected to the shank portion 20 to a distal end remote from the shank portion 20 and forms a blade 32 at the distal end of the working portion 30.

By adopting the above configuration, a straight blade 32 is formed at the distal end of the working portion 20 of the microneedle 1 for hair planting. The blade 32 may be used to create a straight cut when hair is planted. On the one hand, a straight blade facilitates the operator to obtain an incision with an accurate orientation during the hair planting operation. On the other hand, compared with the circular or arc-shaped incision formed by the hair planting device which is conventionally adopted at present, the straight incision is easier to ensure the accurate incision orientation, so that the accurate planting direction of the hair follicle is ensured, the clamping force on the planted hair follicle is also enhanced, the planted hair follicle can grow towards the expected direction without deflection and kinking of the hair, and the hair planting effect and the hair survival rate are ensured. In addition, the size of the incision produced with the microneedle according to the present invention is about one third smaller than that of the circular or circular arc-shaped incision produced with the conventional syringe type implanting needle, compared to that with the conventional medical syringe type implanting needle. Thus, using microneedles according to the present invention allows for a greater number of straight incisions to be made for the same implantation area, which increases the number of hair follicles implanted, resulting in a higher density of hair implantation and a better hair implantation result. In addition, the micro-needle can reduce the wound on the skin, has high survival rate of the hair follicle, and is not easy to cause postoperative infection.

Some alternative exemplary embodiments according to the present invention will now be described with reference to fig. 2 and 3. Fig. 2 illustrates a front view of a microneedle for hair planting according to an alternative exemplary embodiment of the present invention, as viewed from the front. Fig. 3 illustrates a side view of a microneedle for hair planting according to an alternative exemplary embodiment of the present invention, viewed from the side.

In an alternative exemplary embodiment according to the present invention, the working portion 30 of the microneedle 1 for hair planting may include two inclined surfaces 31 symmetrically disposed on laterally opposite sides of the working portion 30, such that the working portion 30 tapers in a wedge shape from a proximal end connected to the handle portion 20 to a distal end distant from the handle portion 20 and forms a blade 32 at the distal end of the working portion 30 through a central axis of the microneedle 1.

As shown in fig. 2 and 3, in an alternative exemplary embodiment, the blade 32 passes through the central axis a-a of the microneedle such that the extension length of the blade 32 in the radial direction of the microneedle is the same as the diameter of the shaft portion 20.

As can be seen with reference to fig. 2, in an alternative exemplary embodiment, the extended length of the blade 32 may be configured to be the same as the diameter of the shank portion 20. It will be appreciated by those skilled in the art that the extended length of the blade portion 32 may be configured to be smaller than the diameter of the handle portion 20, depending on the actual hair planting needs, thereby further reducing the size of the incision and reducing skin trauma.

As can be seen with reference to fig. 3, the blade 32 may be configured to pass through the central axis a-a of the microneedle 1 and be symmetrical with respect to the central axis a-a.

Thus, the working portion 30 is symmetrical as a whole about the central axis a-a of the microneedle 1. The use of a symmetrical construction may increase the stability of the working part during planting. And, the length of the blade part in the radial direction of the microneedle is the same as the diameter of the shank part, which can further increase the overall stability of the shank part and the working part of the microneedle, and facilitate reduction of time and cost for manufacturing and processing the integrally formed shank part and working part of the microneedle.

According to some alternative embodiments of the present invention, the total length of the handle portion 20 and the working portion 30 in the lengthwise direction of the microneedle 1 may be in the range of 3cm to 5 cm. According to some alternative embodiments of the present invention, the length of the grip portion 10 in the lengthwise direction of the microneedles 1 may be about 1.5 cm.

If the length of the microneedle is too long, the overall strength of the handle portion and the working portion may be affected, which in turn may cause unstable force application during hair planting; and if the length of the microneedles is too short, it may be inconvenient to handle.

In some alternative embodiments, the total length of the handle portion 20 and the working portion 30 in the lengthwise direction of the microneedle 1 may be 4cm, wherein the length of the working portion 30 may be 0.5 cm. It is understood that the length of the microneedles is not limited thereto, and different microneedle lengths may be designed according to different operational requirements.

In some alternative embodiments of the utility model, an annular plurality of recesses may be provided in the portion of the shank portion adjacent the working portion.

Referring again to fig. 1A, in the illustrated exemplary embodiment, two

annular grooves

21, 22 are provided in the portion of the shank portion 20 adjacent to the working portion 30. It is to be understood that the number of grooves is not limited to that shown in the exemplary embodiment shown in fig. 1A, and one or more grooves may be provided as desired.

In some alternative embodiments of the present invention, the groove provided on the handle portion 20 may be configured such that the microneedle 1 can bend at one of the plurality of grooves, thereby forming an angle between the handle portion 20 and the working portion 30.

Optionally, the angle formed between the shank portion and the working portion by bending at the groove of the shank portion may be in the range of 15 ° to 30 °, in some alternative embodiments 20 °.

Bent microneedles, commonly referred to as art-grown microneedles, can have a corresponding change in the angle at which the blade of the working portion cuts into the skin (e.g., relative to the horizontal surface on which the skin is grown) so that the microneedles can be grown hair against the skin. In this way, the microneedles can be adapted for hair planting at locations such as the eyebrows and sideburns.

According to an alternative embodiment of the present invention, the first groove 21 of the plurality of grooves may be disposed at a distance of 6mm from the distal end (i.e., the blade 32) of the working part 30, and the second groove 22 of the plurality of grooves may be disposed at a distance of 7mm from the distal end (i.e., the blade 32) of the working part 30, as shown in fig. 1A.

The arrangement position of the groove on the handle portion of the microneedle can be set according to the use requirement of the microneedle. The positions of the first groove 21 and the second groove 22 in the illustrated exemplary embodiment are set according to the size of the microneedle 1 of the present invention, and in addition to facilitating the microneedle 1 to be able to bend at the

grooves

21, 22, the positions can also be used as a visual reference for the operator to perform the incision operation during the hair planting process and as a termination position reference for the incision depth, so that the operator can estimate the incision depth. It is to be understood that the positional arrangement of the grooves is not limited to that described in the exemplary embodiments of the present application, and the positions of the grooves may be set differently according to the requirements of use of different microneedles and the sizes of the microneedles.

Referring again to fig. 1, according to an exemplary embodiment of the present invention, the holding portion 10 of the microneedle 1 may include a pressing portion 11 and a lateral side portion extending from the pressing portion 11 toward the handle portion 20 in a lengthwise direction of the microneedle 1.

As shown in fig. 1 to 3, in the illustrated exemplary embodiment, the lateral side portion may include two pinching side portions 12 and two transition side portions 13 alternately arranged around the central axis a-a of the microneedle 1.

As shown in fig. 1, the pressing portion 11 is provided at the top of the grip portion 10, i.e., at the end opposite to the handle portion. The pinching side portion 12 and the transition side portion 13 are respectively provided to extend from the pressing portion 11 toward the handle portion 20 in the longitudinal direction of the microneedle 1. The two grip side portions 12 are provided on opposite sides in the lateral direction of the grip portion 10 in the same direction as the inclined surface 31 of the working portion 30, and are provided to extend in the same direction as the inclined surface 31 of the working portion 30. In other words, as shown in fig. 3, in the lateral direction of the microneedle 1, the orientation (facing direction) of the grip side portion 12 of the grip portion 10 is substantially the same as the orientation (facing direction) of the inclined surface 31 of the working portion 30. The transition side portion 13 is provided at opposite ends of the pinch side portion 12 and connects the opposite pinch side portions 12.

Such a configuration of the grip portion 10 may facilitate the holding of the microneedles for hair planting by the operator. The operator usually holds the microneedle with the left hand, and in use, the left thumb and middle finger of the operator respectively pinch the two pinching side parts 12, the index finger presses against the pressing part 11, the ring finger assists in supporting the handle part 20, and then the operations of incision and hair follicle planting are performed at the required position. The holding side 12 is arranged on the same side of the microneedle 1 as the inclined surface 31 of the working part 30, so that the microneedle can be conveniently used by an operator for planting hair to form a cut with uniform depth in a planting area, and the condition that the hair is skewed and wound is reduced.

In an alternative embodiment according to the present invention, the pressing portion 11 may be configured in a concave configuration, and the nip side portion 12 may be configured in a concave configuration, as shown in fig. 1. The concave configuration is designed to make the pressing portion and the pinching side portion of the microneedle more suitable for fitting the shape of the hand of the operator, especially the fingers, and thus can facilitate the operator to apply pressure to the grip portion 10 during the operation.

In an alternative embodiment according to the utility model, the transition sides 13 may be configured in a convex configuration. The concave configuration of the pinching side portion and the convex configuration of the transition side portion are designed such that an operator operating the microneedle for hair planting can grasp the correct holding direction of the microneedle by tactile sensation only.

In an alternative embodiment according to the present invention, rounded transition configurations are provided at the edges where the pressing portion 11 and the pinch side portion 12 of the grip portion 10 meet, at the edges where the pressing portion 11 and the transition side portion 13 meet, and at the edges where the pinch side portion 12 and the transition side portion 13 meet. Thus, the overall shape of the grip portion 10 is a smooth, non-pointed convex-concave combination which increases the comfort of the grip portion 10 and avoids any point portion damage to the operator. It is to be understood that the configuration of the pressing portion 11 and the pinching side portion 13 is not limited thereto, and it is possible to configure a flat configuration or other configurations that facilitate the application of pressure by the operator. For example, a groove may be provided at the grip side 13 to increase the friction between the operator's finger and the holding portion of the microneedle.

In an alternative embodiment according to the utility model, the grip portion may be configured to taper from the pressing portion via the lateral side towards the shaft portion of the microneedle.

Referring to fig. 1, in the illustrated exemplary embodiment, the grip portion 10 is configured substantially as a pentahedron, tapering overall from the pressing portion 11 via the grip side 12 and the transition side 13 towards the handle portion 20 into a pyramid-like configuration. This configuration of the grip portion 10 can enhance the gripping comfort of the grip portion 10. It will be appreciated that the configuration of the grip portion 10 is not limited to the exemplary embodiment shown, and tapered configurations such as conical or elliptical or oblate in cross-section are possible, so long as they are capable of being held by an operator.

According to an alternative embodiment of the present invention, the length of the edge of the nip side 12 connected to the pressing portion 11 may be set to 1 cm. The length of the edge of the transition side 13 connecting to the pressing portion 11 may be set to 0.7 cm. The length of the pinch side portion 12 and the transition side portion 13 in the longitudinal direction of the microneedle may be set to 1.5 cm. It is to be understood that the size of the grip portion 10 in the embodiment according to the present invention is not limited thereto, but may be set differently according to the size suitable for the operator.

Fig. 4 illustrates a perspective view of a microneedle for hair planting according to another embodiment of the present invention. The microneedle 1 'in the embodiment shown in fig. 4 is different from the microneedle 1 in the foregoing embodiment in that the microneedle 1' does not include the holding portion 10 included in the microneedle 1 in the foregoing embodiment. Only the difference between the microneedle 1' and the microneedle 1 will be explained below, the same reference numerals will be used for the same components between the two embodiments, and detailed description thereof will be omitted.

Referring to fig. 4, the microneedle 1 'for hair planting according to the illustrated embodiment includes a handle portion 20 and a working portion 30 disposed in a lengthwise direction of the microneedle 1', and both the handle portion 20 and the working portion 30 are made of stainless steel. In the illustrated exemplary embodiment, the total length of the shaft portion 20 and the working portion 30 of the microneedle 1' may be set to be in the range of 4.5cm to 6.5 cm. In some alternative embodiments, the total length of the handle portion 20 and the working portion 30 may be set to 5cm, wherein the length of the working portion 30 is 0.5 cm. It is understood that the technical features and technical effects of the other components of the microneedle 1' in the present embodiment may be substantially the same as those of the microneedle 1 of the previous embodiment except for the different size settings of the grip portion 10 and the handle portion, which will not be described herein again.

According to yet another exemplary embodiment of the present invention, a microneedle kit for hair planting is provided. A microneedle kit for hair planting according to the present invention may include a plurality of microneedles 1 and/or microneedles 1' for hair planting as described in the foregoing embodiments.

According to alternative exemplary embodiments of the present invention, the length of each microneedle 1 or microneedle 1' in the microneedle kit may be the same.

In some alternative embodiments, the diameters of the handle portions of the individual microneedles 1 or microneedles 1' in the microneedle kit may be different from each other.

In some alternative embodiments, the holding portion 10 of each microneedle 1 in the microneedle kit may be made of plastic materials of different colors corresponding to different diameters of the handle portion 20. In this way, the microneedles with different diameters on the handle part can be visually distinguished, the microneedles with different specifications are distinguished through the holding parts with different colors, an operator can conveniently select the microneedles with different specifications, the risk of mistakenly selecting the microneedles is reduced, and the efficiency of hair planting operation is improved.

In alternative embodiments, depending on the size of the hair follicle to be seeded, there may be provided in the microneedle kit of the utility model: a microneedle having a handle portion 20 of 0.6mm diameter and a grip portion 10 made of blue plastic material; a microneedle having a handle portion 20 of 0.7mm in diameter and a grip portion 10 made of a black plastic material; a microneedle having a handle portion 20 of 0.8mm diameter and a grip portion 10 made of a green plastic material; a microneedle having a handle portion 20 of 0.9mm in diameter and a grip portion 10 made of a yellow plastic material; and microneedles having a diameter of 1mm in the handle portion 20 and the grip portion 10 made of a white plastic material.

According to the above embodiment, by configuring the holding portions of the microneedles having the handle portions of 0.6mm, 0.7mm, 0.8mm, 0.9mm and 1mm in diameter to be blue, black, green, yellow and white, respectively, the color of the holding portions of the microneedles contained in the microneedle kit according to the present invention corresponds to the color of the needle base of the medical syringe type planting needle conventionally used in hair planting at present, respectively, so that the operator of hair planting can select the microneedles according to the usual operation habits.

It is to be understood that the diameter of the handle portion and the color of the grip portion are not limited to the above-described embodiments, but different diameters of the handle portion and different colors of the grip portion may be set according to different sizes of hair follicles as long as microneedles of different sizes can be distinguished by the grip portions of different colors.

An alternative embodiment of microneedles that may be provided in a microneedle kit according to the present invention will now be described with reference to fig. 5 and 5A. Fig. 5 shows a side view of a microneedle for hair planting according to yet another exemplary embodiment of the present invention. The microneedle 1 may be one of a plurality of microneedles of a microneedle kit according to the present invention. Fig. 5A shows an enlarged view of the portion N in fig. 5.

As shown in fig. 5 and 5A, the microneedle 1 may be provided with a sleeve 40. In an alternative embodiment of the utility model, the sleeve 40 may be a plastic sleeve, in particular a plastic sleeve.

According to an embodiment of the present invention, the inner diameter of the sleeve 40 may be equal to or less than the diameter of the stem portion 20 of the respective microneedles in the microneedle kit, so that the stem portion 20 and the working portion 30 of the respective microneedles can be tightly inserted into the sleeve 40 and not exposed outside the sleeve 40.

According to an exemplary embodiment of the present invention, the sleeve 40 may serve as a protective sleeve for the shank portion 20 and the working portion 30, preventing damage to the blade 32 during packaging and shipping. When the hair is planted, the cannula 40 may be cut according to a desired incision depth, so that the cannula 40 may serve as an operation stopper of the microneedle 1 to limit the incision depth. Therefore, the use of the sleeve can prevent the problems of excessive bleeding caused by too deep incision or low survival rate of hair caused by too shallow incision. It is noted that in addition to the sleeve 40, other means of protecting and operatively retaining the microneedles may be employed.

The use of the terms "a" and "an" and "the" and similar referents in the context of describing the disclosed embodiments (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms "comprising," "having," "including," and "containing" are to be construed as open-ended terms, that is, as "including, but not limited to," unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein.

It should be understood that while exemplary embodiments in accordance with the present invention have been described and illustrated with reference to the accompanying drawings, the embodiments described herein should be considered in a descriptive sense only and not for purposes of limitation. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the disclosure. Descriptions of features or aspects within various embodiments should generally be considered as available for other similar features or aspects in other embodiments. Various modifications and changes in form and detail may be made to the embodiments, and these should be construed as being within the scope of the present invention.

Claims

1. Microneedle (1) for hair planting, the microneedle (1) comprising a grip portion (10) made of a plastic material arranged in a lengthwise direction of the microneedle (1), and a handle portion (20) and a working portion (30) made of stainless steel, the handle portion (20) being shaped like a cylinder, the working portion (30) being arranged at one end of the handle portion (20) and extending from the handle portion (20) in a direction away from the handle portion (20), the grip portion (10) being fixedly connected to the handle portion (20) at the other end of the handle portion (20) opposite to the working portion (30),

characterized in that the working portion (30) comprises inclined surfaces (31) on laterally opposite sides of the working portion (30), such that the working portion (30) tapers in a wedge-like manner from a proximal end connected to the shank portion (20) to a distal end remote from the shank portion (20) and forms a blade (32) at the distal end of the working portion (30).

2. Microneedle (1) for hair planting according to claim 1, characterized in that the blade (32) passes through the central axis (a-a) of the microneedle (1) such that the extension of the blade (32) in the radial direction of the microneedle (1) is the same as the diameter of the shaft portion (20).

3. Microneedle (1) for hair planting according to claim 1 or 2, characterized in that the total length of the handle portion (20) and the working portion (30) is in the range of 3cm to 5cm, the length of the holding portion (10) in the lengthwise direction of the microneedle (1) being 1.5 cm.

4. Microneedle (1) for hair planting according to claim 3, characterized in that the total length of the handle portion (20) and the working portion (30) is 4cm, wherein the length of the working portion (30) is 0.5 cm.

5. Microneedle (1) for hair planting according to claim 4, characterized in that at the portion of the handle portion (20) adjacent to the working portion (30) there is provided a plurality of grooves in the shape of a ring configured such that the microneedle (1) can bend at one of the grooves, forming an angle between the handle portion (20) and the working portion (30).

6. Microneedle (1) for hair planting according to claim 5, characterized in that a first groove (21) of said plurality of grooves is provided at 6mm from the distal end of the working portion (30) and a second groove (22) of said plurality of grooves is provided at 7mm from the distal end of the working portion (30).

7. Microneedle (1) for hair planting according to claim 1, characterized in that said grip portion (10) comprises: a pressing portion (11), the pressing portion (11) being provided at an end portion of the grip portion (10) opposite to an end portion to which the handle portion (20) is connected; and a lateral side extending in a lengthwise direction of the microneedle (1) from the pressing portion (11) of the grip portion (10) toward the handle portion (20), the lateral side including two pinching sides (12) and two transition sides (13) alternately arranged around a central axis (a-a) of the microneedle (1), wherein the two pinching sides (12) are arranged on laterally opposite sides of the grip portion (10) in the same direction as the inclined surface (31) of the working portion (30), the transition sides (13) connecting the two pinching sides (12) at opposite ends of the pinching sides (12).

8. Microneedle (1) for hair planting according to claim 7, characterized in that at least one of the pressing portion (11) and the pinching side portion (12) is configured in a concave configuration.

9. Microneedle (1) for hair planting according to claim 7 or 8, characterized in that the grip portion (10) is configured to taper from the pressing portion (11) via the lateral side towards the handle portion (20) of the microneedle (1).

10. Microneedle (1) for hair transplantation according to claim 9, wherein the length of the edge of the pinching side (12) connected to the pressing part (11) is 1cm, the length of the edge of the transition side (13) connected to the pressing part (11) is 0.7cm, and the length of the pinching side (12) and the transition side (13) in the longitudinal direction of the microneedle (1) is 1.5 cm.

11. A microneedle (1 ') for hair planting, the microneedle (1 ') comprising a handle portion (20) made of stainless steel disposed in a lengthwise direction of the microneedle (1 ') and a working portion (30), the handle portion (20) being shaped into a cylindrical shape, the working portion (30) being disposed at one end of the handle portion (20) and extending from the handle portion (20) in a direction away from the handle portion (20),

12. Microneedle (1 ') for hair planting according to claim 11, characterized in that the blade (32) passes through the central axis (a-a) of the microneedle (1 ') such that the extension of the blade (32) in the radial direction of the microneedle (1 ') is the same as the diameter of the shaft portion (20).

13. Microneedle (1') for hair planting according to claim 11 or 12, characterized in that the total length of the handle portion (20) and the working portion (30) is in the range of 4.5cm to 6.5 cm.

14. Microneedle (1') for hair planting according to claim 13, characterized in that the total length of the handle portion (20) and the working portion (30) is 5cm, wherein the length of the working portion (30) is 0.5 cm.

15. Microneedle (1 ') for hair planting according to claim 14, characterized in that at the portion of the handle portion (20) adjacent to the working portion (30) there is provided a plurality of grooves in the shape of a ring configured such that the microneedle (1') can bend at one of the grooves, forming an angle between the handle portion (20) and the working portion (30).

16. Microneedle (1') for hair planting according to claim 15, characterized in that a first groove (21) of said plurality of grooves is provided at 6mm from the distal end of the working portion (30) and a second groove (22) of said plurality of grooves is provided at 7mm from the distal end of the working portion (30).

17. A microneedle kit for hair planting, characterized in that it comprises a plurality of microneedles (1) for hair planting according to any one of claims 1 to 10.

18. The microneedle kit for hair planting according to claim 17, wherein each microneedle of the microneedle kit has the same length, the diameters of the handle portions (20) of each microneedle of the microneedle kit are different from each other, and the holding portion (10) of each microneedle of the microneedle kit is made of plastic materials of different colors to correspond to the different diameters of the handle portions (20), respectively.

19. The microneedle kit for hair planting according to claim 18, comprising: a microneedle having a handle portion of 0.6mm in diameter and a holding portion made of a blue plastic material; a microneedle having a diameter of 0.7mm in the handle portion and a holding portion made of a black plastic material; a microneedle having a diameter of 0.8mm in the handle portion and a holding portion made of a green plastic material; a microneedle having a diameter of 0.9mm in the handle portion and a holding portion made of a yellow plastic material; and a microneedle having a diameter of 1mm in the handle portion and a holding portion made of a white plastic material.

20. Microneedle kit for hair planting according to claim 17, characterized in that each microneedle of the microneedle kit is provided with a sleeve (40), the inner diameter of the sleeve (40) being respectively equal to or smaller than the diameter of the shank portion (20) of the respective microneedle of the microneedle kit, such that the shank portion (20) and the working portion (30) of the respective microneedle can be inserted into the sleeve (40) and is not exposed outside the sleeve (40).