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:
Oct. 12, 2010
Filed:
Oct. 30, 2007
Eric P. Berg, Grapevine, TX (US);
Ronald J. Tuch, Plymouth, MN (US);
Michael Dror, Herzliya, IL;
Rodney G. Wolff, Minnetonka Beach, MN (US);
Eric P. Berg, Grapevine, TX (US);
Ronald J. Tuch, Plymouth, MN (US);
Michael Dror, Herzliya, IL;
Rodney G. Wolff, Minnetonka Beach, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A method for making an intravascular stent by applying to the body of a stent a solution which includes a solvent, a polymer dissolved in the solvent and a therapeutic substance dispersed in the solvent and then evaporating the solvent. The inclusion of a polymer in intimate contact with a drug on the stent allows the drug to be retained on the stent during expansion of the stent and also controls the administration of drug following implantation. The adhesion of the coating and the rate at which the drug is delivered can be controlled by the selection of an appropriate bioabsorbable or biostable polymer and the ratio of drug to polymer in the solution. By this method, drugs such as dexamethasone can be applied to a stent, retained on a stent during expansion of the stent and elute at a controlled rate.