Methods of improving the wear resistance of prosthetic medical devices
AssigneeHowmedica Osteonics Corp.
InventorsAiguo Wang, Aaron Paul Essner
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Abstract
Methods for fabricating prosthetic medical devices exhibiting improved wear resistance include selectively cross-linking polymeric resins then curing and shaping the polymer into a finished article. 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.
Claims42
A method of fabricating a bearing surface comprising:
- blending non-cross-linked polyolefinic material with cross-linked polyolefinic material;
- and
- forming the bearing surface from the blended material.
A method of fabricating a polyolefinic bearing surface comprising:
- cross-linking a polyolefinic material;
- blending the cross-linked polyolefinic material with non-cross-linked material;
- and
- forming the bearing surface from the blended material.
A method of fabricating a polyolefinic bearing surface comprising:
- providing polyolefinic material;
- cross-linking a portion of the polyolefinic material;
- blending the cross-linked polyolefinic material with the non-cross-linked polyolefinic material;
- and
- forming the bearing surface from the blended material.
Dependencies are inferred from the claim text.