Methods and apparatus for stenting comprising enhanced embolic protection, coupled with improved protection against restenosis and thrombus formation

US6755856B2 · kind B2 · utility

Assignee

• Abbott Laboratories Vascular Enterprises Limited · IE

Inventors

• Joost J. Fierens · Dworp, BE
• Silvio Schaffner · Basadingen, CH
• Marc Gianotti · Wiesendangen, CH
• Gerd Seibold · Herrenberg, DE
• Randolf von Oepen · Los Altos, US

Key dates

• Filing date: Sep 28, 2001
• Grant date: Jun 29, 2004
• Expiry date: Jun 12, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2220/005
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Apparatus and methods for stenting are provided comprising a stent attached to a porous biocompatible material that is permeable to endothelial cell ingrowth, but impermeable to release of emboli of predetermined size. Preferred stent designs are provided, as well as preferred manufacturing techniques. Apparatus and methods are also provided for use at a vessel branching. Moreover, embodiments of the present invention may comprise a coating configured for localized delivery of therapeutic agents. Embodiments of the present invention are expected to provide enhanced embolic protection, improved force distribution, and improved recrossability, while reducing a risk of restenosis and thrombus formation.