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Combined acetabulum file

An acetabular file and combined technology, which is applied in medical science, surgery, etc., can solve the problems of blunt cutting edge, easy deformation, rough forming surface, etc., achieve high cutting force, reduce cutting force, and improve stability Effect

Pending Publication Date: 2017-06-20
WUHAN YIJIABAO BIOMATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the application number is CN201520489206.5, and the Chinese utility model patent named acetabular file discloses a kind of acetabular file punched by a hemispherical shell. The cutting edge is uneven, and the shape of the file is not a regular hemisphere. Surface, molding surface is relatively rough
In addition, the edge of this file is very thin, low rigidity, easy to deform, and the cutting edge will become dull after a few uses
Acetabular reamers can only be scrapped after the cutting edge becomes dull, neither durable nor economical

Method used

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Examples

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings. The accompanying drawings are for illustrative purposes only and should not be construed as limiting the patent.

[0015] In order to describe the present invention more concisely, some components that are known to those skilled in the art but not related to the main content of the present invention will be omitted in the drawings or descriptions. In addition, for the convenience of expression, some parts in the drawings will be omitted, enlarged or reduced, but it does not represent the size or overall structure of the actual product.

[0016] Implementation example:

[0017] Such as figure 1 As shown, a combined acetabular reamer includes a hemispherical tool holder 1 and three pairs of cutting blades 2, and the acetabular reamer takes the axis of the hemispherical shell as the axis of rotation. A total of 6 chip flutes are evenly and symmetrically distributed, and ...

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PUM

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Abstract

The invention relates to the technical field of surgery department medical instruments, and discloses a combined acetabulum file. The combined acetabulum file comprises a hemisphere tool rest and detachable blades, the axis of a hemisphere is adopted as the rotating axis of the acetabulum file, 2-5 pairs of cutting blades are mounted on the hemisphere face of the hemisphere, each pair of cutting blades are symmetrically arranged relative to the rotating axis, each cutting edge is divided into 3-6 sections by small gaps on the cutting edge, and the adjacent blades are spirally distributed along the hemisphere face. The cutting edges of the acetabulum file are not likely to be abraded and can be repeatedly used, after the blades are abraded, the blades can be replaced, and the cutting effect is good.

Description

technical field [0001] The invention relates to the technical field of surgical medical instruments, and more particularly relates to hip joint replacement surgical instruments. Background technique [0002] An acetabular reamer is a surgical instrument widely used in hip replacement surgery. Most of the current acetabular reamers are thin-plate punched mesh structures. For example, the application number is CN201520489206.5, and the Chinese utility model patent named acetabular file discloses a kind of acetabular file punched by a hemispherical shell. The cutting edge is uneven, and the shape of the file is not a regular hemisphere. Surface, molding surface is relatively rough. In addition, the cutting edge of this file is very thin, has low stiffness, is prone to deformation, and the cutting edge will become dull after a few uses. After the cutting edge becomes dull, the acetabular reamer can only be scrapped, which is neither durable nor economical. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/16
CPCA61B17/1659A61B17/1666A61B2017/564
Inventor 倪小兵唐小雄
Owner WUHAN YIJIABAO BIOMATERIAL CO LTD
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