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US 9,789,223 B2Granted
Polyurethanes for osteoimplants
AssigneeWarsaw Orthopedic, Inc.
InventorsDavid Knaack, John Winterbottom, David R. Kaes, Todd M. Boyce, Lawrence A. Shimp
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Abstract
Biological-based polyurethanes and methods of making the same. The polyurethanes are formed by reacting a biodegradable polyisocyanate (such as lysine diisocyanate) with an optionally hydroxylated biomolecule to form polyurethane. The polymers formed may be combined with ceramic and/or bone particles to form a composite, which may be used as an osteoimplant.
Claims20
A biodegradable polyurethane composite, comprising:
- a polyurethane matrix formed by reaction of a polyisocyanate with an optionally hydroxylated biomolecule to form a biodegradable polyurethane polymer;
- and a reinforcement embedded in the matrix, wherein the reinforcement comprises a material selected from the group consisting of bone and bone substitutes.
Dependencies are inferred from the claim text.