Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Polymerizing – cross-linking – or curing
Reexamination Certificate
2010-01-20
2011-10-18
Del Sole, Joseph S. (Department: 1743)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Polymerizing, cross-linking, or curing
C264S488000, C264S235000, C264S346000, C623S022150, C623S022170, C623S022210
Reexamination Certificate
active
08038927
ABSTRACT:
The present invention relates to methods for making oxidation resistant medical devices that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and materials used therein.
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Muratoglu Orhun K.
Spiegelberg Stephen H.
Cambridge Polymer Group, Inc.
Del Sole Joseph S.
Kennedy Timothy
Perkins Coie LLP
The General Hosital Corporation
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