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US 9,034,357 B2Granted
Anti-adhesion barrier
AssigneeCovidien LP
InventorJoshua B. Stopek
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to medical devices comprising at least a first film layer and at least a second gel layer and to methods for preparing such devices.
Claims13
An anti-adhesion device comprising:
- a composite of a first layer and a second layer, wherein the first layer comprises a film comprising a hydrophilic polymer and a water content less than 40% and the second layer comprises a gel comprising a hydrophilic polymer and a water content greater than 40%, wherein the film prevents adhesions and the gel promotes tissue growth.
A process for forming an anti-adhesion device comprising:
- polymerizing a first biodegradable monomer to form a first layer, swelling the first layer in a second biodegradable monomer, and polymerizing the swelling first layer in the second biodegradable monomer to form a composite, wherein the first layer comprises a film comprising a hydrophilic polymer and a water content less than 40% and the second layer comprises a gel comprising a hydrophilic polymer and a water content greater than 40%, wherein the film prevents adhesions and the gel promotes tissue growth.
A process for preventing the binding of tissue to tissue or of tissue to bone comprising:
- placing between two tissues or between tissue and bone a device comprising a composite of a first and second layer, wherein the first layer comprises a film comprising a hydrophilic polymer and a water content less than 40%, and the second layer comprises a gel comprising a hydrophilic polymer and a water content great than 40%, wherein the film prevents adhesions and the gel promotes tissue growth.
Dependencies are inferred from the claim text.