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Detachable acetabulum file

An acetabular file and a pair of technology, applied in medical science, surgery, etc., can solve the problems of increasing production costs, high requirements for grinding machines, and low processing efficiency, and achieve the effects of improving production efficiency, reducing processing costs, and simple processing

Pending Publication Date: 2018-03-13
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method not only has high requirements on the grinding machine, but also has very low processing efficiency, which greatly increases the production cost.
In addition, once the blade of the acetabular reamer is worn out, the entire acetabular reamer has to be replaced, which is costly

Method used

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  • Detachable acetabulum file
  • Detachable acetabulum file
  • Detachable acetabulum file

Examples

Experimental program
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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0024] Such as Figure 1-Figure 3 As shown, a detachable acetabular file includes a hemispherical hollow tool holder 1 and a knife holder 2, the knife holder 2 is sleeved on the outside of the knife holder 1, and the knife holder 1 is provided with a plurality of rows A chip flute 3; a pair of main blades 4 are symmetrically arranged on the tool rest 2, and at least a pair of sub-blade 5 are also symmetrically arranged on the tool rest 2, and the main blade 4 is connected to the end of the sub-blade 5 adjacent to the rear, and The adjacent blades are hollowed out to form a partially hollowed out hemispherical shell. The main blade 4 and the sub-blade 5 are respectively provided with a main blade 6 and a sub-blade 7 along the radial surface of th...

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Abstract

The invention relates to a detachable acetabulum file. The detachable acetabulum file comprises a hemispherical and internally hollowed-out cutter base and a cutter holder, and the cutter base is sleeved with the cutter holder and provided with a plurality of chip discharge grooves; a pair of main blades are symmetrically arranged on the cutter holder, at least one pair of sub-blades are symmetrically arranged on the cutter holder, the main blades are connected with the tail ends of the adjacent sub-blades at the rear portions of the main blades, the space between the adjacent blades are hollowed out and forms a partial hollowed-out hemispherical shell shape, main blade edges and sub-blade edges are formed in the radial surfaces of the front ends of the main blades and the sub-blades respectively, the end portions of the main blades intersect with one another to form junction parts and end-portion blade edges, and the chip discharge grooves in the cutter holder correspond to the main blades and the sub-blades in a one-to-one mode respectively. According to the detachable acetabulum file, an original integrated acetabulum file is improved into the cutter holder with the cutting function and the spherical cutter base for reinforcing the cutter holder and collecting and containing chips, through bolt fixation, the cutter holder can be detached and replaced, and the height of the cutting edges determines the filing diameter of the acetabulum file.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a detachable acetabular file. Background technique [0002] The acetabular reamer is an essential surgical tool for dealing with the acetabular socket in hip replacement surgery. The main cutting objects are acetabular cartilage and a small amount of subchondral bone. During the operation, the size of the acetabulum was estimated based on the X-ray of the patient, and an acetabular reamer with a blade diameter 4 mm smaller than the size of the acetabulum was selected for acetabular reconstruction. Through the low-speed movement of the dry cutting teeth on the surface of the acetabular reamer under certain pressure conditions, the necrotic tissue at the patient's hip joint is removed, and the top tooth blade cuts two different tissues of the acetabular cartilage and subchondral bone at the same time. Starting with a small acetabular reamer, the diameter of the cutter body was inc...

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 王成勇刘志华江文涛陈志桦张月
Owner GUANGDONG UNIV OF TECH
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