Stent having discontinuous coating in the form of coating islands

US6805709B1 · kind B1 · utility

Assignee

• Biotronik Mess -und Therapiegeraede GmbH & Co. Ingenieurbuero Berlin · DE

Inventors

• Max Schaldach · Erlangen, DE
• Curt Kranz · Berlin, DE

Key dates

• Filing date: Oct 24, 2000
• Grant date: Oct 19, 2004
• Expiry date: Oct 24, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L2400/18
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A stent has a surface with an irregular coating formed on that surface. The irregular coating provides coating islands, especially coating islands that are substantially round. In some embodiments, the coating islands are arranged at a greater spacing in regions involving a greater degree of local stretching of the stent surface upon stretching of the stent than in regions involving a lesser degree of local stretching of the stent surface. In other embodiments, the coating islands are smaller in regions involving a greater degree of local stretching of the stent surface upon stretching of the stent than in regions involving a lesser degree of local stretching of the stent surface.