| US 7,491,215 B2 | ||
| Filter element for embolic protection device | ||
| David Vale, Dublin (Ireland); and Eamon Brady, Elphin (Ireland) | ||
| Assigned to Salviac Limited, Dublin (Ireland) | ||
| Filed on Nov. 06, 2001, as Appl. No. 9/985,820. | ||
| Application 09/985820 is a continuation of application No. PCT/IE00/00053, filed on May 08, 2000. | ||
| Claims priority of application No. PCT/IE99/00033 (WO), filed on May 07, 1999; and application No. PCT/IE99/00036 (WO), filed on May 07, 1999. | ||
| Prior Publication US 2002/0107541 A1, Aug. 08, 2002 | ||
| Int. Cl. A61M 29/00 (2006.01) | ||
| U.S. Cl. 606—200 | 11 Claims |
| 1. A collapsible filter element for a transcatheter embolic protection device, the filter element comprising:
a collapsible filter body which is movable between a collapsed stored position for movement through a vascular system and
an expanded position for extension across a blood vessel such that blood passing through the blood vessel is delivered through
the filter element;
a proximal inlet portion of the filter body having one or more inlet openings sized to allow blood and embolic material to
enter the filter body;
a distal outlet portion of the filter body having a plurality of outlet openings sized to allow through-passage of blood,
but to retain embolic material within the filter body; and
a filter support frame for supporting the filter body in the expanded position extended across a blood vessel;
the filter body having laminated regions comprising at least two layers extending along the length of at least two of the
regions and wherein the regions comprise varying hardness or stiffness along the length between the two regions resulting
from different thickness or materials of the laminated regions.
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