Patent ID: 6846330

Claim:
A process for producing an artificial dura mater having a three-layer structure comprising: (a) preparing an artificial dura mater sheet by: (i) dissolving a lactide/ε-caprolactone copolymer in a solvent to form a solution wherein the molar ratio of the copolymer is from about 40/60 to about 60/40; (ii) filtering the solution; (ii) casting the solution; (iv) air-drying the solution to remove the solvent; and (v) vacuum-drying the solution to remove the solvent, wherein an artificial dura mater sheet is formed; (b) repeating (a) to form two more artificial dura mater sheets; (c) placing a reinforcement of a biodegradable and bioabsorbable synthetic polymer different from the copolymer of (a) (i) between the artificial dura mater sheets produced in (a) and (b) to form a sandwich; and (d) vacuum pressing the sandwich to integrally mold the artificial dura mater sheets the reinforcement, wherein an artificial dura mater is produced.