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US 6,387,407 B1Granted
Topical drug preparations
AssigneeL.A.M. Pharmaceutical Corp.
InventorsAlan Drizen, Peter Rothbart, Gary M. Nath
Life of this patent
Estimating the term…
Abstract
Topical gelled compositions comprising an optional drug dispersed within a polymer matrix, methods of producing the same and treatments with the complex.
Claims6
A process for the use of a composition as a medical device, for drug delivery, the application of a diagnostic agent, or the prevention of post operative adhesions, said process comprises topically administering to a mammal an aqueous based gelled composition containing a polymer matrix composed of a negatively charged polymer material blended with a nonionic polymer;
- wherein the negatively charged polymer material is hyaluronate sodium salt;
- and
- wherein the hyaluronate sodium salt has a weight average molecular weight from about 650,000 to about 800,000, a sulphated ash content below about 15%, a protein content below about 5% and purity of at least 98%.
Dependencies are inferred from the claim text.