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Acetabular bone file with rotating shaft positioning function

A technology of acetabular rasping and rotating shaft, applied in the field of medical devices, can solve the problem of difficulty in coaxial burring, etc., and achieve the effect of improving curative effect

Inactive Publication Date: 2014-04-30
王禹基 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Hip replacement requires the use of acetabular reamers to grind the acetabular cartilage for acetabular preparation. Generally, starting with the smallest acetabular reamer, the reamer is progressively reamed every 2 mm. Problems often arise: ideal acetabular preparation requires each time the reamer is replaced. After filing, the axis of rotation coincides with the last time. Generally, it is based on the operator’s experience to achieve coaxial grinding as much as possible, so it is difficult to achieve true coaxial grinding.

Method used

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  • Acetabular bone file with rotating shaft positioning function
  • Acetabular bone file with rotating shaft positioning function

Examples

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Embodiment Construction

[0012] Such as figure 1 , 2 As shown, an acetabular file with positioning of the rotating shaft includes an acetabular file 1, a support frame 2 and a rotating shaft 3. The acetabular file 1 is a hemispherical cover with several holes 11 arranged on the side of the hole 11. There is a cutting edge 12, and the support frame 2 is fixed on the bottom of the acetabular file 1, which is a common acetabular file.

[0013] The acetabular file of the present invention is combined with the rotating shaft, and a short rod matching the hole drilled under the guidance of the rotating shaft is added to the center of the top of the ordinary acetabular file 1, that is, the rotating shaft 3, which can make the file rotate coaxially every time. . The top of the rotating shaft 3 is preferably hemispherical, which can facilitate the centering and rotation of the entire acetabular file. The cutting edge 12 can be an ordinary cutting edge, or preferably serrated. The serrated shape can improve ...

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Abstract

The invention relates to the technical field of medical instruments, in particular to an acetabular bone file with a rotating shaft positioning function. The acetabular bone file comprises an acetabular bone file body, a supporting rack and a rotating shaft, wherein the acetabular bone file body is a semi-spherical cover; a plurality of holes are formed in the acetabular bone file body; a cutting edge is arranged on the side of each hole; the supporting rack is fixed on the bottom of the acetabular bone file body; and the rotating shaft is fixed on the top of the acetabular bone file body. The acetabular bone file is used with a rotating axis positioner; the existing acetabular bone filing mode can be changed; and a curative effect is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an acetabular rasp with rotation axis positioning. Background technique [0002] Hip replacement requires the use of acetabular reamers to grind the acetabular cartilage for acetabular preparation. Generally, starting with the smallest acetabular reamer, the reamer is progressively reamed every 2 mm. Problems often arise: ideal acetabular preparation requires each time the reamer is replaced. After filing, the axis of rotation coincides with the last time. Generally, according to the operator’s experience, the coaxial filing is achieved as much as possible, so it is difficult to achieve true coaxial filing. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides an acetabular rasp with rotation axis positioning. [0004] The technical solution adopted by the present invention to solve its technical p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/16
CPCA61B17/1666
Inventor 王禹基徐南伟郑栋
Owner 王禹基
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