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Device for customized 3D printing of ankle joints

A technology of 3D printing and ankle printing, which is applied in 3D printing, ankle joints, joint implants, etc., can solve problems such as replacement, repair, and maintenance of motion stability, and achieve stable motion, strong stability, and easy disassembly and assembly Effect

Active Publication Date: 2021-01-01
SHANDONG WEIGAO ORTHOPEDIC DEVICE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing ankle joint products cannot achieve the effect of replacement, repair, and maintenance of motion stability for serious defects in the geometric shape of the ankle joint, severe osteoporosis, osteonecrosis, unstable or missing ligaments, large backbones, and joint defects.

Method used

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  • Device for customized 3D printing of ankle joints
  • Device for customized 3D printing of ankle joints
  • Device for customized 3D printing of ankle joints

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Effect test

Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0029] like Figure 1-6 In the shown embodiment, a custom-made 3D printed ankle joint device includes a distal tibial diaphysis prosthesis 1, a distal tibial inferior articular surface 2, a joint slide 3, and a talus superior articular surface 4 arranged in sequence from top to bottom. and talus prosthesis 5, wherein:

[0030] The distal tibial diaphysis prosthesis 1 is made of titanium alloy powder material and is designed according to the patient's own defect and anatomical structure, including a medullary needle 101 arranged in sequence from top to bottom, a 3D printed tibial porous structure 102, a tibial diaphysis 103. The first dovetail groove structure 10...

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Abstract

The present invention relates to the technical field of medical prosthesis devices and particularly to a device for customized 3D printing of ankle joints. The device for the customized 3D printing ofthe ankle joints comprises a tibia far-end backbone prosthesis, a tibia far-end lower joint surface, a joint slideway, a talus upper joint surface and a talus prosthesis which are sequentially arranged from top to bottom. The device repairs a movement function of the ankle joints after losses of large-section tibia, ankle joint talus and ligaments, and is designed according to an anatomical structure design of a patient, a movement rotation center and a natural bone movement center are consistent as much as possible, a position of a movement contact surface and a position of a natural bone contact surface are consistent as much as possible, all the components are convenient to disassemble and assemble and high in stability after being installed, and the device guarantees that the ankle joints move stably and do not disengage.

Description

technical field [0001] The invention relates to the technical field of medical prosthesis devices, in particular to a customized 3D printed ankle joint device. Background technique [0002] The ankle joint is composed of the articular surfaces of the lower ends of the tibia and fibula and the trochlea of ​​the talus, also known as the talus calf joint. The articular surface of the inferior tibia and the articular surface of the medial and medial malleolus form the joint fossa, which accommodates the trochlea of ​​the talus. The talus, the largest irregular bone in the ankle, lies within the ankle cavity and is critical to ankle function and biomechanics. The entire ankle joint also needs to rely on ligaments to achieve joint movement stability. [0003] Currently, ankle fusion or artificial ankle replacement can be performed for diseases caused by traumatic arthritis, osteoarthritis, and rheumatoid arthritis. Ankle defects result in loss of articular surfaces and only art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/42A61F2/30
CPCA61F2/4202A61F2/30771A61F2/30942A61F2002/30329A61F2002/30784A61F2002/30985A61F2002/4207A61F2002/4205Y02P10/25
Inventor 陈成鲁成林刘柏村孙军伟黄文祥
Owner SHANDONG WEIGAO ORTHOPEDIC DEVICE COMPANY
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