METHODS, SYSTEMS, AND DEVICES FOR PROVIDING EMBOLIC PROTECTION AND REMOVING EMBOLIC MATERIAL

摘要

A filter device is adapted to function as a guidewire, an exchange guidewire, and provide embolic protection during a procedure. The filter device (10) includes a filter assembly (42) that is either integral with or coupled to a guide member (12). The filter assembly (42) includes a plurality of struts (52) that expand outwardly to deploy a filter (50) that collects or captures material flowing along the blood vessel within which the filter device (10) is deployed. The plurality of struts (52) is constrained by a restraining member or mechanism (24) that prevents the plurality of struts from expanding or extending outwardly to deploy the filter. Cooperating with the restraining member or mechanism is an actuating assembly (20) that is adapted to release the restraining member (24) or mechanism and enable the filter to be deployed from the guide member (12). A capture catheter (90) that cooperates with the filter device (10) and substantially surrounds the filter (50) during the removal of the filter device (10).