VALVED EMBOLIC PROTECTION FILTER

摘要

Embolic protection filters having means for retaining embolic debris captured therein are disclosed. An embolic protection filter (10) in accordance with the present invention may include a filter frame (12) disposable about a guidewire (14), a filter membrane (22) for filtering embolic debris, and a valve (30) configured to prevent the escape of filtered embolic debris. The valve may comprise a leaflet (34) valve having a plurality of leaflets configured to engage each other about a coaptive region (38).