Back to results
US 7,985,414 B2Granted
Polyurethanes for osteoimplants
AssigneeWarsaw Orthopedic, Inc.
InventorsDavid Knaack, John Winterbottom, David Kaes, Todd Boyce, Larry Shimp
Life of this patent
Estimating the term…
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.
Claims21
A composite comprising:
- a polyurethane polymer matrix;
- and
- particles embedded within the polyurethane polymer matrix,
- wherein the polyurethane has a structure that results from a reaction of a polyisocyanate with one or more of a polyol or a polyamine;
- and the particles comprise a tissue material, an inorganic material, a bone substitute material, or any combination thereof.
2 more elements
A method of making a composite, comprising a step of:
- reacting a polyisocyanate with one or more of a polyol or a polyamine in the presence of particles to form a polyurethane polymer matrix having the particles embedded therein,
- wherein the particles comprise a tissue material, an inorganic material, a bone substitute material, or any combination thereof.
Dependencies are inferred from the claim text.