Biodegradable polymeric film
AssigneeOsteoBiologics, Inc.
InventorsNeil C. Leatherbury, Kristine Kieswetter, Michael A. Slivka, Gabriele Niederauer
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Abstract
This invention provides biodegradable, biocompatible polymeric films having uniform selected thicknesses between about 60 micrometers and about 5 mm useful in the manufacture of therapeutic implants for insertion into a patient's body. The films may be shaped to cover implants made of other materials to improve their biocompatibility. The films may be coated with or incorporate bioactive agents. They may have differing properties, e.g., porosity, thickness, and degradation rate, in different areas.
Claims13
A therapeutic device comprising an implant which is at least partially covered with a biodegradable, biocompatible polymeric film which has a uniform selected thickness between about 75 micrometers and about 125 micrometers, and said film is capable of completely degrading in vivo in no more than about four months.
A therapeutic device comprising an implant which is at least partially covered, as a surface covering, with a biodegradable, biocompatible polymeric film made of a material selected from the group consisting of polylactic acid, polyglycolic acid, enantiomers thereof, copolymers thereof, and mixtures thereof, having more than one zone, said film having a uniform thickness between about 60 micrometers and about 5 mm in each said zone, and having differing properties selected from the group consisting of degradation time, porosity and thickness in different zones.
Dependencies are inferred from the claim text.