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. 19, 2004
Filed:
Sep. 28, 2000
Steven Z. Wu, Santa Clara, CA (US);
Sameer Harish, Fremont, CA (US);
Deborra Sanders-Millare, San Jose, CA (US);
Judy A. Guruwaiya, San Jose, CA (US);
Daryush Mirzaee, Sunnyvale, CA (US);
Syed Hossainy, Fremont, CA (US);
Charlene Chen, Redondo Beach, CA (US);
Advanced Cardiovascular Systems, Inc., Santa Clara, CA (US);
Abstract
An implantable medical device, such as a stent or graft, having asperities on a designated region of its outer surface is disclosed. The asperities can serve to improve retention of one or more layers of a coating on the device and to increase the amount of coating that can be carried by the device. The asperities can be formed by using a stream of pressurized grit to roughen the surface. The asperities can also be formed by removing material from the outer surface, for example, by chemical etching with or without a patterned mask. Alternatively, the asperities can be formed by adding material to the outer surface, for example, by welding powder particles to the outer surface or sputtering.