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Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature

A knee joint and joint technology, applied in the field of orthopedic prosthesis for knee joint replacement surgery, can solve problems such as loss of joint stability, abnormal movement of the knee joint, and accelerated wear and tear

Active Publication Date: 2010-03-31
DEPUY PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This irrational forward translation can lead to loss of joint stability, accelerated wear, abnormal knee kinematics, and / or cause the patient to experience a feeling of instability during some activities

Method used

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  • Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature
  • Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature
  • Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature

Examples

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Embodiment Construction

[0041] [0040] While the concepts disclosed herein allow for numerous modifications and alternative forms, particular embodiments thereof are shown by way of example in the drawings and will be described in detail herein. It should be understood, however, that there is no intention to limit the concepts disclosed herein to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, analogs, alternatives falling within the limits defined by the appended claims. within the spirit and scope of the present invention.

[0042] [0041] Terms used throughout this disclosure to denote anatomical references, such as: anterior, posterior, medial, lateral, superior, inferior, etc., will refer to both the orthopedic implant described herein and the patient's natural anatomy. These terms have all known meanings in the fields of anatomy and orthopedics. These anatomically related terms used in the specification and claims are considered to be consistent ...

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PUM

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Abstract

An orthopaedic knee prosthesis includes a tibial bearing and a femoral component configured to articulate with the tibial bearing. The femoral component includes a posterior cam configured to contact a spine of the tibial bearing and a condyle surface curved in the sagittal plane. The radius of curvature of the condyle surface decreases gradually between early-flexion and mid-flexion. The radius of curvature of the condyle surface may be increased during mid-flexion.

Description

[0001] Cross References to Related US Patent Applications [0002] [0001] Cross reference: the serial number is XX / XXX, XXX, titled "Orthopedic Femoral Component Having Controlled Condylar Curvature" ("Orthopedic Femoral Component Having Controlled Condylar Curvature"), published by John L.Williams et al. in June 2008 U.S. utility patent application filed on the 30th; the serial number is XX / XXX,XXX, and the title is "Posterior Cruciate-Retaining Orthopedic Knee Prosthesis Having Controlled Condylar Curvature" , a U.S. utility patent application filed on June 30, 2008 by Christel M. Wagner; serial number XX / XXX, XXX, titled "Posterior Stabilized Orthopedic Prosthesis" ("Posterior Stabilized Orthopedic Prosthesis"), by U.S. Utility Patent Application filed June 30, 2008 by Joseph G. Wyss; and Serial No. XX / XXX,XXX, entitled "Orthopedic Knee Prosthesis Having Controlled Condylar" Curvature"), U.S. Provisional Patent Application filed June 30, 2008 by Joseph G. Wyss, each of which...

Claims

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Application Information

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IPC IPC(8): A61F2/38
CPCA61F2310/00179A61F2/3868A61F2/3886A61F2230/0006A61F2220/0033A61F2/3859A61F2002/30116A61F2002/30332A61F2310/00023A61F2310/00029
Inventor J·G·威斯C·M·沃纳D·索科洛夫J·S·李J·L·威廉斯S·T·戈马J·M·阿马科斯特
Owner DEPUY PROD INC