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A compound medical knife

A compound and medical technology, applied in the field of medical devices, can solve the problems of easy passivation of the blade and low efficiency, and achieve the effects of prolonging blade damage, improving safety performance and improving efficiency.

Inactive Publication Date: 2019-06-04
王雯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the reamer in this patent can reduce the wound area, it is only suitable for the part that has been perforated, that is to say, it is only suitable for reaming.
In addition, the efficiency of the reamer is low during use, and the blade is prone to defects such as passivation

Method used

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  • A compound medical knife
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Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: as figure 1 As shown, a compound medical knife is mainly used in spinal surgery or other orthopedic surgery. The composite medical tool of this embodiment includes a clamping part 1, a cutting part 2 and a grinding part 3, one end of the clamping part is connected to the driving mechanism, and the other end of the clamping part is connected to the end of the cutting part, so The other end of the cutting part is connected with the grinding part.

[0025] Wherein, the cutting portion is in the shape of a triangular prism, and three sides of the triangular prism are provided with cutting edges 21 along the axial direction, which are respectively a first cutting edge 21a, a second cutting edge 21b and a third cutting edge 21c.

[0026] Wherein, the three sides of the triangular prism can be directly processed into a cutting edge, so that the cutting edge and the triangular prism are integrated, and of course the cutting edge and the triangular prism can be se...

Embodiment 2

[0032] Embodiment 2: as figure 1 As shown, a compound medical knife is mainly used in spinal surgery or other orthopedic surgery. The composite medical tool of this embodiment includes a clamping part 1, a cutting part 2 and a grinding part 3, one end of the clamping part is connected to the driving mechanism, and the other end of the clamping part is connected to the end of the cutting part, so The other end of the cutting part is connected with the grinding part.

[0033] Wherein, the cutting portion is in the shape of a triangular prism, and three sides of the triangular prism are provided with cutting edges 21 along the axial direction, which are respectively a first cutting edge 21a, a second cutting edge 21b and a third cutting edge 21c. The triangular prism is a triangular prism formed by equilateral triangles, that is to say, the cross section of the triangular prism is an equilateral triangle.

[0034] Wherein, the three sides of the triangular prism can be directly...

Embodiment 3

[0043] Embodiment 3: as figure 1 As shown, a compound medical knife is mainly used in spinal surgery or other orthopedic surgery. The composite medical tool of this embodiment includes a clamping part 1, a cutting part 2 and a grinding part 3, one end of the clamping part is connected to the driving mechanism, and the other end of the clamping part is connected to the end of the cutting part, so The other end of the cutting part is connected with the grinding part.

[0044] Wherein, the cutting part is in the shape of a triangular prism, and three sides of the triangular prism are provided with cutting edges along the axial direction, which are respectively a first cutting edge, a second cutting edge and a third cutting edge.

[0045] Wherein, the three sides of the triangular prism can be directly processed into a cutting edge, so that the cutting edge and the triangular prism are integrated, and of course the cutting edge and the triangular prism can be set as separate bodi...

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Abstract

The invention discloses a composite medical tool which is characterized in that it comprises a clamping part, a cutting part and a grinding part. One end of the clamping part is connected with a driving mechanism, the other end of the clamping part is connected with an end of the cutting part, and the other end of the cutting part is connected with the grinding part. Wherein the cutting portion isa Mitsubishi column, and the three sides of the triangular prism are provided with cutting edges along the axial direction, which are a first cutting edge, a second cutting edge and a third cutting edge respectively; the grinding part is arranged at the end of the cutting part, and the bottom surface of the grinding part is in an inscribed circle shape matched with the top surface of the cuttingpart, and the top surface of the cutting part is in an arc shape. The cutting tool of the invention can improve the efficiency.

Description

Technical field: [0001] The invention relates to a medical device, in particular to a composite medical knife. Background technique: [0002] At present, in spinal surgery or other orthopedic surgery, it is often necessary to cut the vertebrae or other bones, and the cut parts are processed and then installed back to their original positions. Existing tools for cutting vertebrae or other bones mainly use medical drills. Although this method is feasible, the cutting surface is relatively large due to the use of drills, resulting in more bone loss. [0003] Disclosed in the Chinese patent CN102871701B is called the invention patent of " medical compound operation drill bit ". The surgical drill bit is a rod-shaped body, one end of the rod-shaped body is a spherical drill bit, and the other end of the rod-shaped body is a connecting handle. The spherical drill bit is provided with two different types of cutting edges, and the two different types of cutting edges are respective...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/16
CPCA61B17/1659
Inventor 王雯
Owner 王雯
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