Hair planting microneedle

Abstract

The utility model discloses a hair planting microneedle which comprises a solid needle rod and a needle point part which is arranged at the front end of the needle rod and is provided with an open slot, and a hair guide inclined surface is arranged at the junction of the needle rod and the needle point part. A hollow tube in the prior art is changed into the solid rod, and the hair guide inclined surface is arranged at the junction of the needle rod and the needle tip part, so that dry hair can be prevented from being drawn into subcutaneous skin during an operation, and the quality of a hair transplanting operation is improved.

Description

Technical Field

[0001] The utility model belongs to a hair transplantation surgical instrument, in particular to a hair transplantation microneedle. Background Art

[0002] At present, the instrument used for punching and positioning in hair transplant surgery is mainly a disposable syringe needle (hereinafter referred to as the needle), and the technique is called microneedle implantation. Since the needle uses a hollow tube and a beveled tip, there are three situations in actual microneedle implantation: one is to punch and position first and then implant. If it is a dense area (there are short hair shafts in the epidermis), the original hair shaft will pierce into the hollow tube behind the beveled needle when punching and inserting the needle. It is easy for the needle to be turned back and brought into the subcutaneous tissue, causing adverse reactions. It needs to be cleaned in time (thick hair can be picked out time-consuming, but fine and soft hair may not be picked out and needs to be wiped with gauze), and then the hair follicle unit is implanted with tweezers with both hands, which is time-consuming and labor-intensive. The second is the plug-and-plant method, which is a method of positioning and implanting at the same time. Hold the needle with one hand and use a little force to punch and expand a crack in the scalp, and then use the other hand to operate the tweezers to implant the hair. If the follicle units are implanted, the hollow tube part of the needle can easily bring the short hair shafts and villi of the scalp back into the subcutaneous tissue. In the mildest case, the needle must be withdrawn and then pierced again, causing additional damage or time-consuming to pick out. In the worst case, the implanted hair follicles must be taken out and re-implanted, affecting the survival rate of the hair follicles, and even causing curling, folliculitis, and reverse growth to the subcutaneous tissue after growth. Third, if all the implantation areas have been implanted, but there are still remaining follicle units that cannot be wasted and the implantation is to be increased, if the hollow tube part of the needle brings the implanted follicle units and the hair shafts of the original hair back into the subcutaneous tissue, in the mildest case, they must be removed and re-implanted, affecting the survival rate of the hair follicles, and even causing curling, folliculitis, and reverse growth to the subcutaneous tissue after growth. Utility Model Content

[0003] The utility model aims to provide a hair planting micro-needle which can prevent the hair shaft from being brought into the subcutaneous tissue during surgery.

[0004] The technical solution adopted to achieve the purpose of this utility model is as follows:

[0005] The hair planting microneedle provided by the utility model comprises a solid needle rod, a needle tip portion with an open groove arranged at the front end of the needle rod, and a hair guiding inclined surface is arranged at the junction of the needle rod and the needle tip portion.

[0006] The front end of the needle tip is provided with a bevel tip or a bevel blunt tip.

[0007] The rear end of the needle rod is provided with a sleeve connected with the hand rod.

[0008] A limiting portion for limiting the needle insertion depth is provided at the junction of the needle rod and the needle tip, or on the needle rod or the needle tip.

[0009] The limiting portion is a convex edge or a convex block extending radially along the needle rod. Beneficial Effects

[0010] The utility model changes the hollow tube of the prior art into a solid rod, and arranges a hair guiding inclined surface at the junction of the needle rod and the needle tip, which can prevent the hair shaft from rolling into the subcutaneous tissue during surgery and improve the quality of hair transplant surgery; the needle tip is arranged with an open groove, which facilitates the hair follicle unit to slide into the pore through the groove during transplantation; and a limiting device is designed to prevent the needle from being inserted too deeply.

[0011] The technical solution of the utility model is further explained below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of embodiment 1 of the utility model.

[0013] Figure 2 It is a schematic diagram of the usage status of Example 1.

[0014] Figure 3 It is a structural schematic diagram of embodiment 2 of the present utility model.

[0015] Figure 4 It is a structural schematic diagram of embodiment 3 of the present utility model.

[0016] Figure 5 It is a structural schematic diagram of embodiment 4 of the present utility model. DETAILED DESCRIPTION Example 1

[0017] See Figure 1 The hair transplantation microneedle provided by the utility model comprises a solid needle rod 1, a needle tip portion 3 with an open groove 2 at the front end of the needle rod 1, a hair guide bevel 101 is provided at the junction of the needle rod 1 and the needle tip portion 3, and a bevel tip 4 is provided at the front end of the needle tip portion 3.

[0018] During the operation, a hand bar a with a needle bar clamping device is used to cooperate with the hair planting microneedle. The needle bar clamping device can be a jacket 20 disclosed in Utility Model No. 201120322721.6 and an adjusting nut 30 with a tapered hole that is threadedly connected to the jacket 20. The three-petal spring 25 in the jacket 20 is used to clamp the needle bar 1 of the hair planting microneedle. The adjusting nut 30 is sleeved on the three-petal spring 25 and connected to the threaded body 23 of the jacket 20. The hair planting microneedle is clamped by rotating the adjusting nut 30 in cooperation with the three-petal spring 25. Since a solid needle bar 1 is used, when the plug-and-seek method is used to implant hair, when the original hair shaft is inserted into the opening groove 2 of the needle tip 3, it will be guided out of the needle bar 1 along the hair guide slope 101 and will not be brought into the subcutaneous tissue by the needle, thereby avoiding the occurrence of adverse reactions. Example 2

[0019] The front end of the needle tip 3 in the utility model adopts a bevel blunt head 41 design, which can be used for drilling and positioning before implantation to prevent secondary damage to the wound, such as Figure 3 shown. Example 3

[0020] See Figure 4 The utility model is provided with a threaded sleeve 5 at the rear end of the needle rod 1. When in use, the threaded sleeve 5 is threadedly connected with the joint a1 of the hand rod a to fix the hair planting microneedle on the hand rod a.

[0021] A sleeve 5 may also be provided at the rear end of the needle bar 1, and the sleeve 5 may be tightly sleeved onto the non-threaded joint a1 of the hand bar a. Example 4

[0022] See Figure 5 The utility model is provided with a limiter 6 for limiting the needle insertion depth at the junction of the needle bar 1 and the needle tip 3, and the limiter 6 is a convex edge (or a convex block) extending radially along the needle bar 1. The limiter 6 can also be arranged at an appropriate position on the needle bar 1 or the needle tip 3 as required.

[0023] During the operation, the stopper 6 can prevent the needle tip 3 from being inserted too far into the subcutaneous tissue and causing damage to the patient.

Claims

1. A hair transplant microneedle, characterized in that The invention comprises a solid needle rod, a needle tip part with an open groove at the front end of the needle rod, and a hair guiding inclined surface at the junction of the needle rod and the needle tip part.

2. The hair transplantation microneedle according to claim 1, characterized in that The front end of the needle tip is provided with a bevel tip or a bevel blunt tip.

3. The hair transplantation microneedle according to claim 1, characterized in that The rear end of the needle rod is provided with a sleeve connected with the hand rod.

4. The hair transplantation microneedle according to any one of claims 1 to 3, characterized in that A limiting portion for limiting the needle insertion depth is provided at the junction of the needle rod and the needle tip, or on the needle rod or the needle tip.

5. The hair transplantation microneedle according to claim 4, characterized in that The limiting portion is a convex edge or a convex block extending radially along the needle rod.

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