A method of reverse design and manufacturing of personalized total knee implant prosthesis

A technology for implanting prostheses and total knee joints. It is applied in the direction of joint implants, joint implants, knee joints, etc. It can solve the problems of patients' discomfort and symptoms, achieve dense solid tissues, shorten processing time, and simplify procedures. Effect

Active Publication Date: 2016-01-06
BEIJING NATON TECH GRP CO LTD +1
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and to provide a reverse design and manufacturing method of a personalized total knee implant prosthesis to solve the problem that the knee joint replacement prosthesis cannot achieve the best match to the knee joint structure of Chinese people. , It is easy to cause postoperative discomfort symptoms of patients

Method used

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  • A method of reverse design and manufacturing of personalized total knee implant prosthesis
  • A method of reverse design and manufacturing of personalized total knee implant prosthesis
  • A method of reverse design and manufacturing of personalized total knee implant prosthesis

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Embodiment

[0040] A personalized total knee implant reverse design and manufacturing method, which combines computer-aided design technology, 3D printing manufacturing technology and investment casting technology, breaks the production barriers of traditional mold standardization, and is expected to create a new flexible production line. Improve production efficiency and improve medical level.

[0041] like figure 1 As shown, the process flow of the conventional (osteoarthritis, rheumatoid) total knee replacement prosthesis manufacturing method for patients with total knee replacement of the present invention is:

[0042] (1) Based on the standard medical image CT / MRI scanning raw data of the knee bone, the medical image processing software Mimics is used to process image segmentation, editing, and 3D calculation to reconstruct a 3D digital stereo model of the whole knee bone, including the femur and tibia and the menisci, such as figure 2 , image 3 , Figure 4 As shown, its shape ...

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Abstract

The invention discloses a reverse design and manufacturing method of a personalized total knee joint implant prosthesis, which includes: (1) reconstructing a three-dimensional digital model of the knee joint bone based on the standard medical image CT / MRI scan raw data of the patient's knee joint; (2) Design the 3D CAD data model of the knee implant; (3) Process the above 3D CAD data model of the knee implant to obtain a multi-layer sliced ​​2D CAD data model of the knee implant ; (4) Import the multi-layer sliced ​​two-dimensional CAD data model file into the laser selective melting 3D printing device to obtain the knee joint implanted prosthesis wax model; (5) Obtain the cast of the knee joint implanted prosthesis. The present invention is designed according to the shape and structure of Chinese knee joints, combined with rapid prototyping technology to realize casting production and manufacturing, which can not only greatly improve production efficiency and reduce costs, but also improve the design of the implanted prosthesis at any time according to the doctor's treatment opinion, and realize customization Personalized design, personalized treatment.

Description

technical field [0001] The invention relates to rapid mold manufacturing of medically implanted knee joint prosthesis, in particular to a reverse design and manufacturing method of personalized total knee joint implanted prosthesis. Background technique [0002] Osteoarthritis and rheumatoid are common chronic joint diseases among middle-aged and elderly people. So far, total knee replacement surgery has become a relatively effective treatment. The replacement prosthesis used in total knee arthroplasty is a general-purpose product of standardized production. Most of them are manufactured by traditional production methods of CNC finishing. Due to the production equipment, not only the production cycle is long and the cost is high, but also it is difficult to achieve personalized surgery and customization. The highest treatment concept of prosthesis design and production; and the traditional mold manufacturing method also has the characteristics of poor processing flexibility....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/38
Inventor 杨永强宋长辉余家阔杨波张曼慧
Owner BEIJING NATON TECH GRP CO LTD
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