Hydroswellable, segmented, aliphatic polyurethanes and polyurethane ureas
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United States of America Patent
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May 19, 2015
Grant Date -
Feb 13, 2014
app pub date -
Oct 21, 2013
filing date -
Feb 26, 2008
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Abstract
Hydroswellable, absorbable and non-absorbable, aliphatic, segmented polyurethanes and polyurethane-urea capable of swelling in the biological environment with associated increase in volume of at least 3 percent have more than one type of segments, including those derived from polyethylene glycol and the molecular chains are structurally tailored to allow the use of corresponding formulations and medical devices as carriers for bioactive agents, rheological modifiers of cyanoacrylate-based tissue adhesives, as protective devices for repairing defective or diseased components of articulating joints and their cartilage, and scaffolds for cartilage tissue engineering.
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