Bioerodable polymeric adhesives for tissue repair
AssigneeDePuy Orthopaedics, Inc.
InventorsDale R. Peterson, Z. David Deng, Todd P. Glancy
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AssigneeDePuy Orthopaedics, Inc.
InventorsDale R. Peterson, Z. David Deng, Todd P. Glancy
Estimating the term…
Improved matrices for tissue repair comprising a biocompatible, bioerodable polymer which has a water solubility of about 0.01 to about 500 mg/mL at about 25° C. and adhesive strength of about 600 to about 150,000 Pa; and pressure sensitive adhesives for tissue repair which have adhesive strength of about 600 to about 150,000 Pa. The matrix or adhesive can further comprise a filler or a bioactive agent, or both. The matrices and adhesives are tissue-adherent and dough-like so they can be molded to fit a repair site. When used for bone/implant fixation, or as a filler for bone or cartilage repair, gradual short-term bioerosion of the adhesive matrix allows it to be replaced with developing bone or cartilage tissue. When used for release of a bioactive agent, the agent can be mixed into the adhesive matrix well before the implantation procedure. After implantation, the bioactive agent is gradually released as the adhesive matrix biodegrades.
A pressure sensitive adhesive for tissue repair comprising an α-hydroxycarboxylic acid terpolymer that has an average molecular weight of 1,000 to 3,000, exhibits an adhesive strength of about 600 to about 150,000 Pa and has a water solubility of 0.01 to about 500 mg/ml at about 25° C., wherein the terpolymer is poly(lactide/glycolide/caprolactone) and comprises about 35-45% lactide, about 35-45% glycolide, and about 10 to about 30% caprolactone.
Dependencies are inferred from the claim text.