Radiation and melt treated ultra high molecular weight...

Details Radiation and melt treated ultra high molecular weight... Radiation and melt treated ultra high molecular weight...

2004-07-29

2010-12-28

Berman, Susan W (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

Reexamination Certificate

active

07858671

ABSTRACT:
A medical prosthesis for use within the body which is formed of radiation treated ultra high molecular weight polyethylene having substantially no detectable free radicals, is described. Preferred prostheses exhibit reduced production of particles from the prosthesis during wear of the prosthesis, and are substantially oxidation resistant. Methods of manufacture of such devices and material used therein are also provided.

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