US Patent Number
5515590
Publication Date
5-14-1996
Abstract
A method is provided for reducing the amount of wear particulates generated by a total joint orthopaedic implant. The implant consists of two matched articulating components. The method includes the steps of placing the total joint orthopaedic implant in a fluid bath and articulating the implant in the fluid bath for at least 1,000 cycles. The articulation may be performed in three stages. In the first, the implant is articulated under a load of substantially 0.1-500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. During a second stage the articulation takes place under a load of substantially 200-2,500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. In the third stage the articulation takes place under a load of substantially 2,500-10,000 Newtons at sliding speeds of 0.5-2.0 meters per second.
Assignees
University of Kentucky Research Foundation, Lexington, Ky.
Application Number
276,972
Filing Date
07/19/1994
Recommended Citation
Pienkowski, David A., "Method for Reducing the Generation of Wear Particulates from an Implant" (1996). Biomedical Engineering Faculty Patents. 3.
https://uknowledge.uky.edu/cbme_patents/3
