Embolic protection devices

US7217255B2 · kind B2 · utility

Assignee

• Advanced Cardiovascular Systems, Inc. · US

Inventors

• William J. Boyle · Fallbrook, US
• Andy Edward Denison · Temecula, US
• Benjamin C. Huter · Murrieta, US
• Scott J. Huter · Temecula, US
• Richard S. Stack · Chapel Hill, US
• Kent C. B. Stalker · San Marcos, US
• Christopher J. Tarapata · Santa Clara, US
• John D. Whitfield · Temecula, US

Key dates

• Filing date: Mar 10, 2003
• Grant date: May 15, 2007
• Expiry date: Mar 13, 2023

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2230/008
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guide wire and is deployed within the patient's vasculature as the guide wire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guide wire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and …