Design method and device for bone cement spacer female mould

A technology of bone cement and spacer, which is used in medical science, prosthesis, joint implants, etc., can solve the problems of low precision, prolonged hemostasis time, and fast hardening speed of bone cement.
CN106214291AInactive Publication Date: 2016-12-14GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2016-12-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a design method and device for a bone cement spacer female mould. The design method for the bone cement spacer female mould includes: establishing a primary three-dimensional CAD model of a joint prosthesis according to acquired point cloud data of the joint prosthesis of a patient; obtaining a three-dimensional CAD model of the joint prosthesis according to the measured actual size of a joint of the patient; defining a joint surface of a relevant die of the three-dimensional CAD model of the joint prosthesis according to analysis on a connection manner and a working process of the three-dimensional CAD model of the joint prosthesis, and establishing a primary bone cement spacer female mould; and editing the primary bone cement spacer female mould to obtain the bone cement spacer female mould according to the characteristics of bone cement. The design method and device can quickly produce a high-precision high-matching-degree bone cement spacer female mould.
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Description

technical field

[0001] The invention relates to the technical field of artificial joint prosthesis design, in particular to a reverse engineering-based design method and device for a bone cement spacer female mold. Background technique

[0002] An artificial joint prosthesis is an implant that is widely used in the joints of the human body such as hips, knees, shoulders and ankles. At present, the artificial joint prosthesis in my country is mainly imported from abroad. Since these prostheses are designed according to foreign anatomical standards, they may not match the shape and size of the articular surface of Chinese people. At the same time, for some metal, ceramic and other prostheses, some patients will have a strong rejection reaction, and it is difficult for patients with relatively serious tissue infection to apply such prostheses. After artificial joint replacement surgery, there will be a problem of postoperative infection. To treat postoperative infection, bone ...

Claims

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