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:
Feb. 23, 1999
Filed:
Feb. 24, 1997
Anthony O Ragheb, West Lafayette, IN (US);
Brian L Bates, Bloomington, IN (US);
Neal E Fearnot, West Lafayette, IN (US);
Thomas A Osborne, Bloomington, IN (US);
Thomas G Kozma, West Lafayette, IN (US);
Joseph W Roberts, Minneapolis, MN (US);
William D Voorhees, III, West Lafayette, IN (US);
Cook Incorporated, Bloomington, IN (US);
MED Institute, Inc., West Lafayette, IN (US);
Abstract
A silver implantable medical device 29 includes a structure 12 adapted for introduction into the vascular system, esophagus, trachea, colon, biliary tract, or urinary tract; at least one layer 18 of a bioactive material posited on one surface of structure 12; and at least one porous layer 20 posited over the bioactive material layer 18 posited on one surface of structure (12) and the bioactive-material-free surface. Also included is a layer or impregnation of silver 45. Preferably, the structure 12 is a coronary stent. The porous layer 20 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, medicant material utilized with the implantable stent.