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Manufacturing method of replica artificial joint spacer

A technology of artificial joints and manufacturing methods, applied in joint implants, joint implants, medical science, etc., can solve problems such as patients' inability to obtain joint functions, limit clinical applications, and affect surgical effects, etc., and achieve economical and cost-effective preparation methods Ease of operation, shortened operation time, and the effect of preventing contracture

Active Publication Date: 2017-03-01
上海龙慧医疗科技有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

At present, the spacer implanted in the operation is made by hand, and its shape and size are quite different from the normal artificial joint prosthesis, so that the postoperative patients cannot obtain relatively normal joint function, which affects the effect of the operation
Moreover, the existing mechanically processed commercial artificial joint spacers are expensive, have no metal materials to enhance strength, and have defects such as non-adjustable sizes, which limit clinical applications.

Method used

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  • Manufacturing method of replica artificial joint spacer

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Effect test

Embodiment 1

[0023] refer to figure 1 As shown, this embodiment is a box-type container for making a replica artificial joint spacer, including two completely symmetrical half-boxes 1, which are connected by two hinges 2 between the two half-boxes 1, in the box-type The top of the container offers a circular hole 3, that is, the tops of the two half-boxes 1 are respectively semicircular holes, which just become full circles after closing. Curing agent 4 is laid inside the box body, and artificial joint prosthesis 5 is placed inside the box body. After the box-type container is closed, the internal total size is greater than the size of the artificial joint prosthesis 5 to be selected, that is, the length direction of the inner space of the box-type container and the width direction are larger than the size of the artificial joint prosthesis 5 .

[0024] The manufacturing steps of using the above-mentioned box-type container to make a replica artificial joint spacer are as follows:

[002...

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Abstract

The invention provides a manufacturing method for a duplicate artificial joint spacer. The manufacturing method includes the following steps that 1, a curing agent is laid in a container, an artificial joint prosthesis is wrapped by the curing agent in the container to manufacture a female die for the artificial joint prosthesis; 2, a hardening agent is injected into the female die to manufacture the duplicate artificial joint spacer. A metal bar or block can be placed in the female die in advance to improve the strength of the spacer. The spacer consistent with the artificial joint prosthesis to be used in size and appearance can be manufactured accurately within short time, so that the operation time is shortened, the action effect of the spacer is improved, and the manufacturing method is economical, simple and convenient. By means of the planted joint type spacer, a patient can obtain part of normal joint functions after an operation, and the postoperation satisfaction degree is improved. Soft tissue contracture is effectively prevented, which lays the foundation for reoperation.

Description

technical field [0001] The invention relates to a manufacturing method of a replica artificial joint spacer capable of accurately replicating artificial joint prostheses. Background technique [0002] As one of the most effective means of treating end-stage joint diseases, artificial joint replacement has been used more and more, but artificial joint infection is a serious complication, which requires surgery to remove the prosthesis and put in antibiotic-containing bone cement to make it The spacer in order to treat the infection and prevent soft tissue contracture, after the infection is controlled, it is beneficial to re-implant the new artificial joint prosthesis. At present, the spacer implanted in the operation is hand-kneaded, and its shape and size are quite different from the normal artificial joint prosthesis, so that the postoperative patients cannot obtain relatively normal joint function, which affects the effect of the operation. Moreover, the existing mechani...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/30
CPCA61F2/30A61F2002/30001
Inventor 张海宁
Owner 上海龙慧医疗科技有限公司
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