Electric handle for hair follicle extraction

Abstract

The invention relates to the technical field of shell surgical instruments, in particular to an electric handle for hair follicle extraction. The structure of the bearing main connecting rod and the structure of the bearing outer sleeve are improved, particularly, the annular blocking piece formed by the annular convex edge and the annular column structure is arranged on the bearing main connecting rod, and the blocking groove formed by the circular groove and the annular groove structure is formed in the bearing outer sleeve, so that on one hand, the structure is convenient to assemble, and in the assembling state, the bearing outer sleeve is not damaged; the annular blocking piece is in clearance fit with the blocking groove, the bearing main connecting rod and the bearing outer sleeve are connected only through the bearing, friction between the annular blocking piece and the blocking groove is avoided, and therefore the stability of power transmission is guaranteed, power loss is reduced, and on the basis, blood can be prevented from splashing into the bearing body when the hair follicle extraction needle works; pollution and corrosion of the bearing assembly are effectively avoided, and the bearing assembly is kept to work normally for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical instruments, and in particular to an electric handle for hair follicle extraction. Background Art

[0002] In a hair transplantation operation, a follicle extractor is required to extract healthy hair follicles of the patient so as to transplant them to the part requiring transplantation. In the existing follicle extractor structure, the electric handle for follicle extraction is a key component for the user to hold and extract hair follicles. Referring to a new type of hair transplantation handle disclosed in a Chinese patent with the authorization announcement number CN216221602U, the structural principle is that a motor drives a main connecting rod of the bearing to rotate, thereby rotating a hair follicle extraction needle connected to a clamp at the end of the main connecting rod of the bearing, and drilling the tissue around the hair follicle to achieve the purpose of hair follicle extraction.

[0003] In the above patent scheme, the main connecting rod of the bearing needs to be rotatably connected to the bearing sleeve through multiple bearings, and the bearing sleeve needs to be connected to the front shell. During the hair follicle extraction, the main connecting rod of the bearing, the locking cap, the hair follicle extraction needle and other structures all rotate at high speed. In order to ensure the smooth rotation of the main connecting rod of the bearing, there cannot be a sealed connection between the main connecting rod of the bearing and the bearing sleeve. A gap must exist to ensure the high-speed and stable rotation of the main connecting rod of the bearing. During the hair follicle extraction process, when the hair follicle extraction needle contacts the skin tissue, it will cause the tissue blood and flesh to splash at high speed under the action of centrifugation. Part of the blood and flesh will enter the bearing from the gap between the front shell and the main connecting rod of the bearing, causing contamination and corrosion of the bearing assembly, affecting the normal operation of the bearing, and once the blood and flesh enter the position of the bearing assembly, it is extremely difficult to clean. Therefore, the service life of the existing hair follicle extraction electric handle is usually not high. Summary of the invention

[0004] The technical problem to be solved by the present invention is: to improve the structure of the electric handle for hair follicle extraction, so as to prevent blood and flesh from splashing into the interior of the bearing assembly during operation, effectively prevent contamination and corrosion of the bearing assembly, and keep the bearing assembly working normally for a long time.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The hair follicle extraction electric handle comprises a bearing main connecting rod, a bearing body and a bearing jacket;

[0007] The bearing main connecting rod is provided with a bearing connecting column, an annular blocking member and a clamping member in sequence along the X direction;

[0008] The bearing connecting column is used for sleeve connection with the bearing body, the annular barrier comprises an annular convex edge and an annular column extending in the opposite direction of the annular convex edge to the X direction, and the clamping member is used for clamping the hair follicle extraction needle;

[0009] The X-direction reverse end of the bearing sleeve is provided with a bearing connection groove, and the X-direction end of the bearing sleeve is provided with a blocking groove, and the blocking groove includes a circular groove and an annular groove extending in the X-direction reverse end of the circular groove;

[0010] In the assembled state, the bearing body is connected between the bearing connecting column and the bearing connecting groove, and the annular blocking piece and the blocking groove are clearance-matched.

[0011] Furthermore, the above-mentioned hair follicle extraction electric handle structure also includes a shell, and the shell is connected to the outside of the bearing sleeve.

[0012] Furthermore, in the above-mentioned hair follicle extraction electric handle structure, the shell includes a rear shell and a front shell arranged in sequence along the X direction, the rear shell is provided with a first internal thread, the front shell is provided with a second internal thread, the outer side of the bearing sleeve is provided with a first external thread and a second external thread, the bearing sleeve is connected to the first internal thread of the rear shell through the first external thread, and the bearing sleeve is connected to the second internal thread of the front shell through the second external thread.

[0013] Furthermore, in the above-mentioned hair follicle extraction electric handle structure, the annular barrier and the bearing connecting column are an integrally formed structure.

[0014] Furthermore, in the above-mentioned hair follicle extraction electric handle structure, when in the assembled state, a plurality of bearing bodies of the same specification are connected between the bearing connecting column and the bearing connecting groove.

[0015] Furthermore, in the above-mentioned hair follicle extraction electric handle structure, two adjacent bearing bodies are abutted against each other via an isolation sleeve.

[0016] Furthermore, in the above-mentioned hair follicle extraction electric handle structure, a plurality of bearing bodies are directly in contact with each other.

[0017] Furthermore, in the above-mentioned hair follicle extraction electric handle structure, the circular ring column is located at the extension of the circular ring convex edge, and the circular ring groove is located at the extension of the circular groove.

[0018] The beneficial effects of the present invention are: improving the structure of the bearing main connecting rod and the bearing outer sleeve, especially providing an annular barrier formed by a circular ring convex edge and a circular ring column structure on the bearing main connecting rod, and providing a barrier groove formed by a circular groove and a circular ring groove structure on the bearing outer sleeve. On the one hand, this structure facilitates assembly. In the assembled state, the annular barrier and the barrier groove are clearance-matched, and the bearing main connecting rod and the bearing outer sleeve are only connected by the bearing, thereby avoiding friction between the annular barrier and the barrier groove, thereby ensuring the stability of power transmission and reducing power loss. On this basis, it can prevent blood and flesh from splashing into the bearing body when the hair follicle extraction needle is working, effectively avoiding pollution and corrosion of the bearing assembly, and maintaining the normal operation of the bearing assembly for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural cross-sectional view of a hair follicle extraction electric handle according to a specific embodiment of the present invention;

[0020] Description of labels:

[0021] 1. bearing main connecting rod; 11. bearing connecting column; 12. annular barrier; 121. annular convex edge; 122. annular column; 13. clamping member;

[0022] 2. Bearing body;

[0023] 3. Bearing sleeve; 31. Bearing connection groove; 32. Blocking groove; 321. Circular groove; 322. Circular ring groove; 33. First external thread; 34. Second external thread;

[0024] 4. outer shell; 41. rear shell; 411. first internal thread; 42. front shell; 421. second internal thread;

[0025] 5. Hair follicle extraction needle. DETAILED DESCRIPTION

[0026] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0027] Please refer to Figure 1 , a specific embodiment of the present invention relates to a hair follicle extraction electric handle, including a bearing main connecting rod 1, a bearing body 2 and a bearing sleeve 3;

[0028] The bearing main connecting rod 1 is provided with a bearing connecting column 11, an annular blocking member 12 and a clamping member 13 in sequence along the X direction;

[0029] The bearing connecting column 11 is used for sleeve connection with the bearing body 2, the annular barrier 12 includes an annular convex edge 121 and an annular column 122 extending from the annular convex edge 121 in the opposite direction of the X direction, and the clamping member 13 is used for clamping the hair follicle extraction needle 5;

[0030] The X-direction opposite end of the bearing sleeve 3 is provided with a bearing connection groove 31, and the X-direction end of the bearing sleeve 3 is provided with a blocking groove 32, and the blocking groove 32 includes a circular groove 321 and an annular groove 322 extending from the circular groove 321 to the X-direction opposite end;

[0031] In the assembled state, the bearing body 2 is connected between the bearing connecting column 11 and the bearing connecting groove 31 , and the annular blocking member 12 and the blocking groove 32 are clearance-fitted.

[0032] In the above embodiment, on the one hand, it is convenient to assemble. In the assembled state, the annular barrier 12 and the barrier groove 32 are clearance-matched, and the bearing main connecting rod 1 and the bearing sleeve 3 are connected only by the bearing, thereby avoiding friction between the annular barrier 12 and the barrier groove 32, thereby ensuring the stability of power transmission and reducing power loss. On this basis, it can prevent blood and flesh from splashing into the bearing body 2 when the hair follicle extraction needle 5 is working.

[0033] As a preferred embodiment, it further includes a housing 4 , which is connected to the outside of the bearing sleeve 3 .

[0034] As a preferred embodiment, the outer shell 4 includes a rear shell 41 and a front shell 42 arranged in sequence along the X direction, the rear shell 41 is provided with a first internal thread 411, the front shell 42 is provided with a second internal thread 421, the outer side of the bearing sleeve 3 is provided with a first external thread 33 and a second external thread 34, the bearing sleeve 3 is connected to the first internal thread 411 of the rear shell 41 through the first external thread 33, and the bearing sleeve 3 is connected to the second internal thread 421 of the front shell 42 through the second external thread 34.

[0035] In the above implementation mode, refer to Figure 1 A circumferential portion is provided between the first external thread 33 and the second external thread 34 of the bearing sleeve 3, and the diameter of the circumferential portion is greater than the diameter of the first external thread 33, and the diameter of the circumferential portion is greater than the diameter of the second external thread 34. This structure allows the rear shell 41 to be threadedly connected from the rear end (X-direction reverse end) of the bearing sleeve 3, and the front shell 42 to be threadedly connected from the front end (X-direction end) of the bearing sleeve 3, so that as long as the front shell 42 is removed, the bearing connecting column 11 can be removed from the front end of the bearing sleeve 3 separately, and the removal process does not affect the position of the bearing body 2. As long as the rear shell 41 is removed, the bearing body 2 can be removed without removing the bearing connecting column 11. This structure is more convenient for local disassembly and assembly between the bearing sleeve 3, the outer shell 4, the bearing body 2 and the bearing connecting column 11.

[0036] As a preferred embodiment, the annular barrier 12 and the bearing connecting column 11 are an integrally formed structure, thereby improving the overall structural stability of the bearing connecting column 11 and further preventing blood and flesh from splashing into the bearing body 2 and causing contamination.

[0037] As a preferred embodiment, in the assembled state, a plurality of bearing bodies 2 of the same specification are connected between the bearing connecting column 11 and the bearing connecting groove 31 .

[0038] As an implementation mode, two adjacent bearing bodies 2 are abutted against each other via a spacer sleeve.

[0039] As another embodiment, refer to Figure 1 , multiple bearing bodies 2 directly abut against each other.

[0040] As a preferred embodiment, the annular column 122 is located at the extension of the annular convex edge 121 , and the annular groove 322 is located at the extension of the circular groove 321 .

[0041] In the above implementation mode, refer to Figure 1 The annular column 122 and the annular convex edge 121 are L-shaped in cross section. This structure is easier to process and shape, so that the gap between the annular barrier 12 and the bearing sleeve 3 presents a multi-level bend with a long distance, so that during operation, blood and flesh cannot enter the bearing body 2 through the gap between the annular barrier 12 and the bearing sleeve 3, further preventing blood and flesh from splashing into the bearing body 2 and causing contamination.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Electric handle for hair follicle extraction, characterized in that: It includes a bearing main connecting rod, a bearing body and a bearing sleeve; The bearing main connecting rod is provided with a bearing connecting column, an annular blocking member and a clamping member in sequence along the X direction; The bearing connecting column is used for sleeve connection with the bearing body, the annular barrier comprises an annular convex edge and an annular column extending in the opposite direction of the annular convex edge to the X direction, and the clamping member is used for clamping the hair follicle extraction needle; The X-direction reverse end of the bearing sleeve is provided with a bearing connection groove, and the X-direction end of the bearing sleeve is provided with a blocking groove, and the blocking groove includes a circular groove and an annular groove extending in the X-direction reverse end of the circular groove; In the assembled state, the bearing body is connected between the bearing connecting column and the bearing connecting groove, and the annular blocking piece and the blocking groove are clearance-matched.

2. The hair follicle extraction electric handle according to claim 1, characterized in that: The invention also comprises a housing connected to the outside of the bearing housing.

3. The hair follicle extraction electric handle according to claim 2, characterized in that: The outer shell includes a rear shell and a front shell arranged in sequence along the X direction, the rear shell is provided with a first internal thread, the front shell is provided with a second internal thread, the outer side of the bearing sleeve is provided with a first external thread and a second external thread, the bearing sleeve is connected to the first internal thread of the rear shell through the first external thread, and the bearing sleeve is connected to the second internal thread of the front shell through the second external thread.

4. The hair follicle extraction electric handle according to claim 1, characterized in that: The annular barrier and the bearing connecting column are an integrally formed structure.

5. The hair follicle extraction electric handle according to claim 1, characterized in that: In the assembled state, a plurality of bearing bodies of the same specification are connected between the bearing connecting column and the bearing connecting groove.

6. The electric handle for hair follicle extraction according to claim 5, characterized in that: Two adjacent bearing bodies are in contact with each other via a spacing sleeve.

7. The electric handle for hair follicle extraction according to claim 5, characterized in that: The plurality of bearing bodies directly abut against each other.

8. The hair follicle extraction electric handle according to claim 1, characterized in that: The circular annular column is located at the extension of the circular annular convex edge, and the circular annular groove is located at the extension of the circular groove.

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