OXIDATION RESISTANT HIGHLY-CROSSLINKED UHMWPE
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United States of America Patent
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Issued Date -
Jun 10, 2010
app pub date -
Mar 20, 2007
filing date -
Mar 20, 2007
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Abandoned
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Abstract
The present invention relates to highly cross-linked UHMWPE, which is possessed of an improved oxidation resistance, as well as a method for making the same. The UHMWPE material of the current invention is combined with an anti-oxidant compound or a free-radical scavenger prior to formation. Once the UHMWPE with the added material has been formed and treated with gamma or electron beam irradiation, it shows an improved wear resistance and also a good resistance to oxidation. Such a material, is particularly interesting for the field of making replacement joint implants.
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