Joint arthroplasty devices having articulating members

A technology of movable connections and components, which is applied in the field of artificial implants, can solve problems such as surface adhesion, and achieve the effects of anti-aggression, high impact strength, and high biological stability

Inactive Publication Date: 2009-09-16
PIONEER SURGICAL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Also, in the case of load-bearing surfaces of the same polymer material, there are problems of surface adhesion at high loads (e.g. beyond the yield point of the polymer material), which leads to the use of articulating load-bearing components of different materials in artificial load-bearing joints, e.g. Metal pair UHMWPE in artificial intervertebral joints

Method used

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  • Joint arthroplasty devices having articulating members
  • Joint arthroplasty devices having articulating members
  • Joint arthroplasty devices having articulating members

Examples

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Embodiment Construction

[0114] now refer to Figures 1 to 16 , shows an embodiment of a prosthetic disc 300 in the form of a nucleus replacement device. The implant 300 has a body 301 formed from two parts including a lower part or shell 312 and an upper part or shell 314 having respective outer surfaces 320 for contacting adjacent vertebral endplates. , 322. Housings 312 and 314 are preferably both formed from a PEEK material such as virgin PEEK or CFR-PEEK. As such, the artificial intervertebral disc device 300 is characterized by high strength, stiffness, and toughness to provide suitable mechanical properties under severe conditions of intervertebral joints including lumbar and cervical intervertebral discs. The intervertebral disc device 300 may also be highly biocompatible. The PEEK material shells 312 and 314 are radiolucent and thus do not produce scatter or artifacts during examination of joint tissue and bone growth using imaging techniques such as X-ray, MRI and computed tomography. Im...

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Abstract

Articulating devices for replacing damaged or degenerated weight bearing joints are provided. The devices may have two or more surfaces that articulate against one another that are coated or fully formed of PEEK or similar materials to provide improved wear capabilities while maintaining sufficient strength to operate in a weight bearing capacity.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 60 / 825,865, filed September 15, 2006, and U.S. Provisional Application No. 60 / 916,734, filed May 8, 2007, and filed October 22, 2004 A continuation-in-part of U.S. Patent Application Serial No. 10 / 971,734, entitled "Artificial Disc Device," which is a U.S. patent filed on October 22, 2003, entitled "Artificial Disc Device" A continuation-in-part of application Serial No. 10 / 692,468, the contents of all of which are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates to artificial implants for the replacement of damaged or degenerated weight-bearing joints, and more particularly to multi-component implants which allow rotational and / or sliding articulation of the multiple components. Background technique [0004] Several types of joints exist in the human body. These joints can be divided into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
CPCA61F2/44A61F2002/30001
Inventor 鲍其滨提姆·布朗
Owner PIONEER SURGICAL TECH INC
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