Improved extraction head

Abstract

The utility model discloses an improved extraction head which comprises a connecting rod and an extraction part extending along the connecting rod, the extraction part comprises a flow guide section, a resistance section and a cutting section, the resistance section is located between the cutting section and the flow guide section, the cutting section comprises an extraction section and a positioning section, the flow guide section is provided with a horizontal through hole and a vertical through hole, the horizontal through hole is communicated with the vertical through hole, and the positioning section is communicated with the extraction section. The resistance section and the cutting section are of hollow structures, the positioning section comprises a plurality of positioning teeth, cutting edges are formed on the side faces of the positioning teeth, by arranging the positioning section, the tips of the positioning teeth make stable contact with the epidermis, slipping in the cutting process is prevented, and by arranging the resistance part, the length, stretching into the skin, of the extraction head is basically fixed and controllable.

Description

Technical Field

[0001] The utility model relates to a hair planting device, in particular to an improved extraction head. Background Art

[0002] Hair transplantation is a surgical procedure for treating hair loss based on scientific theories. This head plastic surgery mainly uses autologous hair follicle transplantation technology for head beauty. It can not only be used to treat hair loss, but also to partially or completely regenerate eyebrows, eyelashes, beards, pubic hair and armpit hair. In the process of hair transplantation, hair extraction is an important link. In the prior art, hair extraction is usually performed by trephine. However, trephine extraction has the following problems:

[0003] 1. The usual extraction head is flat, which may cause slippage when cutting tissue. The end of the trephine is not visible after it enters the skin. If it is inserted too deep, it will cause unnecessary damage to human tissue. If it is inserted too shallowly, it may not be able to effectively extract hair. Utility Model Content

[0004] The present application provides an improved extraction head, which provides a positioning section so that the tip of the positioning tooth can stably contact the epidermis to prevent slipping during the cutting process, and provides a resistance part so that the length of the extraction head extending into the skin is basically fixed and controllable.

[0005] An improved extraction head comprises a connecting rod and an extraction portion extending along the connecting rod, the extraction portion comprises a guide section, a resistance section and a cutting section, the resistance section is located between the cutting section and the guide section, the cutting section comprises an extraction section and a positioning section, the guide section is provided with a horizontal through hole and a vertical through hole, the horizontal through hole is connected to the vertical through hole, the resistance section and the cutting section are hollow structures, the positioning section comprises a plurality of positioning teeth, and the sides of the positioning teeth form a blade.

[0006] Furthermore, the positioning teeth are distributed circumferentially.

[0007] Furthermore, the number of the positioning gears is four, six, eight or ten.

[0008] Furthermore, the connecting rod and the extraction part are made of metal.

[0009] Furthermore, the cross-sectional size of the resistance section is larger than that of the extraction section.

[0010] The technical solution of the utility model has the following technical effects.

[0011] Since the positioning section at the end is a positioning tooth, and the side of the positioning tooth forms a blade, when extracting hair, the tip of the positioning tooth contacts the scalp, which has a better positioning effect than the end of the flat structure. It can effectively prevent slipping and scratching of tissues during operation.

[0012] The size of the stepped resistance section is larger than that of the cutting section, so the resistance section has greater resistance when entering the skin, preventing the extraction head from entering too deeply and causing internal tissue damage, while reminding the doctor to retrieve the drill. During the hair extraction process, the generated blood enters the vertical through hole 212 along the hollow structure of the cutting section 23 and the resistance section 22, and then flows out through the horizontal through hole 211, effectively preventing blood blockage from affecting hair extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural diagram of embodiment 1.

[0015] Figure 2 It is a schematic cross-sectional structure diagram of the first embodiment.

[0016] Figure 3 This is an enlarged view of the end of the extraction part of Example 1.

[0017] Connecting rod 1 , extraction part 2 , guide section 21 , resistance section 22 , cutting section 23 , extraction section 231 , positioning section 232 , horizontal through hole 211 , vertical through hole 212 , positioning teeth 233 , blade 234 . DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] An improved extraction head comprises a connecting rod 1 and an extraction part 2 extending along the connecting rod 1. The connecting rod 1 and the extraction part 2 are integrally formed of metal material, which is convenient for manufacturing and reduces costs.

[0020] The connecting rod 1 can be connected to a driving device, and when the driving device drives the connecting rod 1 to rotate, the extraction part 2 moves with the connecting rod 1. The extraction part 2 includes a guide section 21, a resistance section 22 and a cutting section 23, wherein the resistance section is located between the cutting section 23 and the guide section 21, and the cutting section 23 includes an extraction section 231 and a positioning section 232.

[0021] The guide section 21 is provided with a horizontal through hole 211 and a vertical through hole 212, and the horizontal through hole 211 is connected with the vertical through hole 212. The resistance section 22 and the cutting section 23 are hollow structures, so that the liquid in the cutting section 23 can flow out from the horizontal through hole 211 after passing through the resistance section 22 and the vertical through hole 212. The positioning section 232 is located below the extraction section 231, and the positioning section 232 includes a plurality of positioning teeth 233, and the positioning teeth 233 are circumferentially distributed. In this embodiment, the number of positioning teeth is 4. According to actual needs, the positioning teeth 233 can also be set to six, eight or ten, etc., and the side of the positioning teeth forms a blade 234. When the connecting rod 1 rotates, the positioning teeth 233 are driven to rotate for effective cutting.

[0022] When extracting hair, insert the hair shaft into the hollow part of the cutting section 23 and gradually approach the skin. The tip of the positioning tooth 233 contacts the scalp. Since the tip of the positioning tooth 233 is easier to penetrate the surface of the scalp, it has a better positioning effect than the end of the planar structure. When the connecting rod 1 rotates to drive the positioning tooth 233 to rotate, the positioning tooth 233 cuts around the hair follicle. With only a little external force, the positioning tooth 233 can move into the scalp, and the cutting section 23 also wants to move into the scalp. As the cutting section 23 gradually extends, the resistance section 22 contacts the dermis. Since the step-shaped resistance section 22 is larger than the cutting section 23, the resistance section 22 has a greater resistance to entering the skin, preventing the extraction head from extending too deep to cause internal tissue damage, and reminding the doctor to recover the drill. During the hair extraction process, the blood generated enters the vertical through hole 212 along the hollow structure of the cutting section 23 and the resistance section 22, and then flows out through the horizontal through hole 211, effectively preventing blood blockage from affecting hair extraction.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved extraction head, characterized in that: It includes a connecting rod and an extraction section extending along the connecting rod, the extraction section includes a guide section, a resistance section and a cutting section, the resistance section is located between the cutting section and the guide section, the cutting section includes an extraction section and a positioning section, the guide section is provided with a horizontal through hole and a vertical through hole, the horizontal through hole is connected with the vertical through hole, the resistance section and the cutting section are hollow structures, the positioning section includes a plurality of positioning teeth, and the sides of the positioning teeth form a blade.

2. The improved extraction head according to claim 1, characterized in that: The positioning teeth are distributed circumferentially.

3. The improved extraction head according to claim 1, characterized in that: The number of the positioning gears is four, six, eight or ten.

4. The improved extraction head according to claim 1, characterized in that: The connecting rod and the extraction part are made of metal material.

5. The improved extraction head according to claim 1, characterized in that: The cross-sectional dimension of the resistance section is larger than that of the extraction section.

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