All-organic high molecular material ankle joint prosthesis

An organic polymer and ankle joint technology, applied in ankle joints, prostheses, joint implants, etc., can solve problems such as reduced gait efficiency, resurgence of interest in ankle joint replacement, and degeneration of adjacent joints, so as to reduce stress shielding problems, reduce wear problems, reduce the effect of metal corrosion

Inactive Publication Date: 2015-11-11
SUZHOU SINOMED BIOMATERIALS CO LTD
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Problems solved by technology

While fusion remains the "gold standard" for the treatment of end-stage ankle arthritis, degeneration o

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  • All-organic high molecular material ankle joint prosthesis

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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] Such as figure 1 As shown, a kind of all-organic polymer material ankle joint prosthesis provided by the present invention comprises tibial support prosthesis 1, tibial pad 2 and ankle prosthesis 3, tibial support prosthesis 1 is connected with tibial pad 2, tibial pad 2 Connected with the ankle prosthesis 3, both the tibial tray prosthesis 1 and the ankle prosthesis 3 are made of polyether ether ketone (PEEK) or its derivatives; the tibial pad 2 is made of ultra-high molecular weight polyethylene (UHMWPE).

[0031] refer again figure 1 , as shown in the figure, the tibial support prosthes...

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Abstract

The invention relates to an all-organic high molecular material ankle joint prosthesis which comprises a tibia support prosthesis, a tibia pad and an anklebone prosthesis. The tibia support prosthesis is connected with the tibia pad, the tibia pad is connected with the anklebone prosthesis, and the tibia support prosthesis and the anklebone prosthesis are both formed by poly(ether ether ketone) (PEEK) or derivatives of the poly(ether ether ketone) (PEEK); the tibia pad is formed by ultra-high molecular weight polyethylene (UHMWPE). According to the all-organic high molecular material ankle joint prosthesis, inner plant parts are composed of high molecular materials, and therefore the problems of metal corrosion and the allergy and toxicity which are possibly caused by metal are solved; the elasticity modulus of the PEEK materials is matched with that of the natural bones, and therefore stress shieding problem is solved; the abrasion of the prosthesis on the sliding friction surface of the cartilago articularis is reduced.

Description

technical field [0001] The invention relates to a medical rehabilitation device, more specifically, to an ankle joint prosthesis made of all organic polymer materials. Background technique [0002] Total ankle arthroplasty and both hip and knee joints are used to relieve pain and preserve natural ankle motion in patients with osteoarthritis (YuJJ, Sheskier S. Totalankle replacement--evolution of the technology and future applications. BullHospJtDis(2013). 2014; 72(1): 120-8). However, total ankle arthroplasty is far less mature than the treatment of the hip or knee. Hip and knee replacements have been developed to provide long-term pain relief and improved function, but neither ankle fusion nor ankle replacement have long-term good results. Early ankle arthroplasty with highly constrained cemented prostheses was discontinued due to unacceptably high failure rates and complications. While fusion remains the "gold standard" for the treatment of end-stage ankle arthritis, de...

Claims

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Application Information

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IPC IPC(8): A61F2/42A61L27/16A61L27/18
CPCA61F2/42
Inventor 朱健徐龙伟
Owner SUZHOU SINOMED BIOMATERIALS CO LTD
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