Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis
Reexamination Certificate
2005-06-14
2005-06-14
Seidleck, James J. (Department: 1711)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
C623S013120, C623S016110, C623S018110, C623S019110, C623S020140, C623S021150, C623S021120, C623S022110, C522S109000, C522S110000, C522S111000, C522S112000, C522S157000, C522S161000, C522S150000, C522S074000, C525S191000, C525S240000
Reexamination Certificate
active
06905511
ABSTRACT:
A prosthetic medical device exhibiting improved wear resistance is fabricated by irradiating at least one polyolefinic material in the presence of an inert atmosphere to yield a cross-linked irradiated polyolefinic material; blending at least one non-irradiated polyolefinic material with the at least one irradiated polyolefinic material, and forming the prosthetic medical device from the blended material. Selectively cross-linked polymeric compositions may be created by blending a specific amount of cross-linked resins with a specific amount of uncross-linked resins then cured into a polymeric matrix whereby the desired degree or percentage of overall cross-linking is obtained. The polymeric material may then be formed directly into a finished article by injection molding the polymeric material.
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Robert M. Streicher, Investigation on Sterilization and Modification of High Molecular Weight Polyethylenes by Ionizing Irradiation, 1/89Reprint from beta-gamma 1/89, pp. 34-43.
Essner Aaron
Wang Aiguo
Howmedica Oseonics Corp.
Lerner David Littenberg Krumholz & Mentlik LLP
McClendon Sanza L.
Seidleck James J.
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