Polyacrylamide hydrogel as a soft tissue filler endoprosthesis
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United States of America Patent
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May 3, 2011
Grant Date -
Oct 17, 2002
app pub date -
Aug 27, 2001
filing date -
Aug 25, 2000
priority date (Note) -
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Abstract
A hydrogel is obtained by combining acrylamide and methylene bis-acrylamide, radical initiation and washing with pyrogen-free water or saline solution to give less than 3.5% by weight polyacrylamide, based on the total weight of the hydrogel. The hydrogel may be used as a soft tissue filler endoprosthesis. Also disclosed is a method of filling a soft tissue in a mammal using the endoprosthesis, and a prosthetic device comprising the polyacrylamide hydrogel.
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