Moment-introduced total joint replacement prosthesis

A prosthesis, prosthetic implant technology, applied in the field of natural biomechanical implanted prosthetic joints

Active Publication Date: 2018-09-07
DEPUY (IRELAND) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is controversy regarding the precise position of axial rotation (higher tibial insert versus lower relative tibial insert) in weight-bearing mobile TKA prostheses

Method used

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  • Moment-introduced total joint replacement prosthesis
  • Moment-introduced total joint replacement prosthesis
  • Moment-introduced total joint replacement prosthesis

Examples

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Embodiment Construction

[0061] Exemplary embodiments of the present invention are described and illustrated below so as to include methods of introducing moments in implanted prosthetic joints, and implantable prosthetic joints incorporating induced moments. Of course, it will be apparent to those skilled in the art that the preferred embodiments described below are exemplary in nature and modifications can be made without departing from the scope and spirit of the invention. However, for the sake of clarity and precision, the exemplary embodiments discussed below may include optional steps, methods and features that one of ordinary skill in the art would deem not necessary to fall within the scope of the invention.

[0062] The basic laws governing machinery come from Newton's laws: (A) Every object in a state of constant velocity tends to maintain that state of motion unless an external force is applied to it; (B) the object's mass m, its acceleration a and the applied The relationship between the ...

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Abstract

The invention relates to a moment-introduced whole-joint replacing prosthesis. A prosthesis shin insert comprises a shin disk insert, wherein the shin disk insert comprises a stabilizing pillar, and a center line of the stabilizing pillar shifts from at least one center line of the front-rear center line of the prosthesis shin disk insert and the inner-outer center line of the prosthesis shin disk insert. An axial rotating method comprises the step of shifting an axial rotating axis between a shin prosthesis and another shin prosthesis in at least one mode, namely, shifting the stabilizing pillar relative to a shin insert, thereby increasing the radius of a container on the inner side of the shin insert of the shin prostheses and increasing the adaptability between the container on the inner side of the shin insert and the internal condyle.

Description

[0001] This application is a divisional application of the Chinese invention patent application with the application number 200680054475.2, the application date of March 21, 2006, and the invention name "Total Joint Replacement Prosthesis Introducing Moment". technical field [0002] The present invention relates to implanted prosthetic devices, and more particularly to implanted prosthetic joints that mimic the natural biomechanics of natural mammalian joints. The present invention also includes a method of introducing a moment in an implanted prosthetic joint and an implanted prosthetic device incorporating the introduced moment. Background technique [0003] Previous studies have demonstrated that the amount of rotation that occurs in the knee during walking and highly flexed activities is significantly different in natural knees (with no prior surgery and no history of clinical deformity) and surgically modified knees such as those undergoing total knee arthroplasty (TKA)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/38
CPCA61F2/38A61F2002/30001
Inventor 理查德·D·科米斯泰克
Owner DEPUY (IRELAND) LTD
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