Normally-solid, bioabsorbable, hydrolyzable, polymeric reaction product
AssigneeAmerican Cyanamid Company
InventorsDonald James Casey, Martin Epstein
Life of this patent
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Abstract
A normally-solid, bioabsorbable, hydrolyzable, polymeric reaction product of (A) a polyglycolic acid composition and (B) a polyester of diglycolic acid and an unhindered glycol and to the process of preparing the same and the use of said polymeric reaction product as a sterile surgical element and as a device for the controlled continuous administration of a predetermined dosage of a drug to a living animal.
Claims13
A normally-solid, bioabsorbable, hydrolyzable, polymeric reaction product of (A) a polyglycolic acid composition and (B) a polyester of diglycolic acid and an unhindered glycol;
- wherein the amount of (B) used is between about 2% and 50%, by weight, based on the total weight of (A) and (B);
- wherein (A), before reaction with (B), has a molecular weight of at least 30,000 and (B), before reaction with (A), has a molecular weight sufficiently high so as to provide a polymeric material possessing self-supporting film-forming properties.
A polymer containing glycolic acid units and alkylene diglycolate units wherein the alkylene diglycolate units are present in an amount between about 2% and 50% of the total weight of polymer.
A normally-solid, bioabsorbable, hydrolyzable polymeric reaction product of (A) a polyglycolic acid composition and (B) a polyester of diglycolic acid and a glycol;
- wherein the amount of (B) used is between about 2% and 50%, by weight, based on the total weight of (A) and (B).
Dependencies are inferred from the claim text.