The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2003
Filed:
Oct. 23, 1997
Brian L. Bates, Bloomington, IN (US);
Neal E. Fearnot, West Lafayette, IN (US);
Thomas G. Kozma, West Lafayette, IN (US);
Thomas A. Osborne, Bloomington, IN (US);
Anthony O. Ragheb, West Lafayette, IN (US);
Joseph W. Roberts, St. Paul, MN (US);
William D. Voorhees, III, West Lafayette, IN (US);
Other;
Abstract
A silver implantable medical device includes a structure adapted for introduction into the vascular system, esophagus, trachea, colon, biliary tract, or urinary tract; at least one layer of a bioactive material posited on one surface of structure ; and at least one porous layer posited over the bioactive material layer posited on one surface of structure and the bioactive-material-free surface. Also included is a layer or impregnation of silver . Preferably, the structure is a coronary stent. The porous layer is comprised of a polymer applied preferably by vapor or plasma deposition and provides a controlled release of the bioactive material. It is particularly preferred that the polymer is a polyamide, parylene or a parylene derivative, which is deposited without solvents, heat or catalysts, merely by condensation of a monomer vapor. Silver is included as a base material, coating or included in a carrier, drug, medicament material utilized with the implantable stent.