Importance

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Abstract

A system used in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region, which is capable of enabling an expandable cage assembly therein, adapted to filter the blood in a blood vessel, to be expandable, so as to capture any embolic material that may be created and released into the bloodstream during the interventional procedure. The system includes a catheter which is positionable in a blood vessel at the interventional procedure site. The system further includes an expandable cage assembly, which is expandable and which may be deployed in the blood vessel distal to the interventional procedure site, which includes a plurality of struts, adapted to be expandable from unexpanded condition thereof, wherein each of the plurality of struts includes an element for varying the stiffness along the length thereof, for enabling the expandable cage assembly to be expandable, portions thereof which are in contact in the unexpanded condition, wherein the expandable cage assembly is capable of expanding, while preventing the unexpanded in contact portions thereof from sticking together during expansion and deployment thereof.

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First Claim