Patent ID: 8246649
Filing Date: 2012-08-21
Classification: A61F

Abstract:
1. A filter system for removal of embolic particles from a blood vessel of a subject, the embolic particles having a particle size, the system comprising: an elongate interventional vascular catheter having a lumen and a distal end, the distal end of the catheter configured to advance distally within the blood vessel; an intravascular filter having a small profile configuration and a large profile configuration, the filter comprising a plurality of filtration elements; the filter in the small profile configuration being advanceable from within the lumen of the catheter and configured to deploy within the blood vessel of the subject by expansion of the filter from the small profile configuration to the large profile configuration; the filter in the large profile configuration having a plurality of openings defined between adjacent filter elements, the openings oriented so that bloodflow along the blood vessel from upstream of the filter passes through the openings when the filter is deployed in the blood vessel, the openings being larger than the particle size; and means, connected to the plurality of filter elements, for applying an electrostatic charge to the filtration element when the filter is deployed within the blood vessel so that the embolic particles electrostatically adhere to said filtration elements such that a substantial number of the adhered embolic particles remain in contact with the filtration element so as to be removed from the subject by removal of said filter from the blood vessel of the subject.