Patent ID: 7947300
Filing Date: 2011-05-24
Classification: A61F,A61K,A61L

Abstract:
1. A resorbable thin membrane, comprising: an amorphous polymer comprising a resorbability greater than 6 months to 24 months and a viscosity property greater than about 1 g/dL to 3.5 g/dL; a first smooth surface, a second smooth surface, and a thickness extending between the first smooth surface and the second smooth surface; a glass transition temperature; a pre-stretch configuration corresponding to a prior state of the membrane in which the thickness was equal to a first thickness; a post-stretch configuration corresponding to a current state of the membrane in which the thickness is equal to a second thickness which is at least 5 times less than the first thickness, the post-stretch configuration corresponding to the membrane having been previously stretched at the glass transition temperature from the first thickness down to the second thickness; a propensity, as a consequence of the post-stretch configuration, of the membrane, when brought at a future time to the glass transition temperature, to return to the pre-stretch configuration during which action the thickness increases 5 times above that of the post-stretch configuration from the second thickness to the first thickness; and the membrane further possessing a characteristic of losing the propensity following the bringing of the membrane at the future time to the glass transition temperature while the membrane is in the post-stretch configuration.