3D printing femoral condyle anatomy bionic type semi-knee-joint prosthesis

A knee joint prosthesis, printing stock technology, applied in 3D printing, knee joint, elbow joint and other directions, can solve the problems of high economic cost, multiple operations, large trauma area of ​​patients, etc., achieve high stability, increase compression force effect

Pending Publication Date: 2021-08-27
WEST CHINA PRECISION MEDICINE IND TECH INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Revision surgery will face problems such as multiple operations, high economic costs, and large trauma area for patients

Method used

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  • 3D printing femoral condyle anatomy bionic type semi-knee-joint prosthesis
  • 3D printing femoral condyle anatomy bionic type semi-knee-joint prosthesis
  • 3D printing femoral condyle anatomy bionic type semi-knee-joint prosthesis

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Embodiment Construction

[0024] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0025] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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Abstract

The invention discloses a 3D printing femoral condyle anatomy bionic type semi-knee-joint prosthesis which comprises a distal femur prosthesis, an artificial ligament and a ligament locking plate, wherein the artificial ligament comprises an anterior cruciate ligament, a posterior cruciate ligament, a medial collateral ligament and an lateral collateral ligament; two through holes are formed in the distal femur prosthesis for enabling the anterior cruciate ligament and the posterior cruciate ligament to penetrate through and be fixed on the distal femur prosthesis; the distal femur prosthesis is further provided with a ligament fixing groove and a ligament locking plate fixing groove; the ligament locking plate fixing groove and the ligament fixing groove are arranged in a crossed mode; and the ligament locking plate presses the artificial ligament and is fixed into the ligament locking plate fixing groove. According to the 3D printing femoral condyle anatomy bionic type semi-knee-joint prosthesis, the unipolar design is adopted, the tibia side epiphysis is reserved as much as possible, and the tibia bone growth function can be guaranteed while the knee joint movement function is reconstructed; by reasonably fixing the ligament, the distal femur prosthesis can rotate back and forth relative to the tibial plateau, and the knee joint is allowed to bend and stretch.

Description

technical field [0001] The invention relates to the field of artificial prosthesis replacement, in particular to a 3D printed femoral condyle anatomical bionic half knee joint prosthesis. Background technique [0002] The distal femur is the most common site of osteosarcoma and other malignant bone tumors. Surgical resection of such tumors will lead to distal femur defects, accumulating knee joints and causing knee joint dysfunction. Osteosarcoma most often occurs in young people under the age of 20, especially children. The epiphysis of this group has not yet healed or has not fully healed, and the bones are still in the growth and development stage. Currently, hinged tumor knee replacement is the most commonly used surgical reconstruction. The hinged tumor-type knee joint prosthesis needs to be resected at the same time as the distal femur to place the prosthetic components, which leads to the involvement of the proximal tibial epiphysis, which affects the growth of the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38
CPCA61F2/3836A61F2/3859A61F2002/30985
Inventor 闵理卢敏勋张瑀琦
Owner WEST CHINA PRECISION MEDICINE IND TECH INST
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