Patent ID: 8262689
Filing Date: 2012-09-11
Classification: A61F

Abstract:
1. An embolic filtering device used to capture embolic debris in a body vessel, the device comprising: a guide wire; a proximal strut assembly including a plurality of struts adapted to move between an unexpanded position and an expanded position and a deployment ring attached to the struts; a distal strut assembly including a deployment ring movable between an unexpanded position and an expanded position; a bending region disposed between and connecting the proximal strut assembly and the distal strut assembly, wherein each of the proximal strut assembly, distal strut assembly and bending region has a particular bending stiffness, the bending region having the lowest bending stiffness and a nominal longitudinal length capable of expanding or contracting when the basket is in the expanded position and each of the deployment rings of the proximal strut assembly and distal strut assembly has an undulating pattern of peaks and valleys, the bending region including a plurality of interconnecting links attached to the peaks of the deployment rings to connect the proximal strut assembly with the distal strut assembly; and a filtering element having a proximal end with a proximal edge forming a proximal inlet opening and a plurality of distal outlet openings, the outlet openings allowing the body fluid to flow through the filtering element but retaining embolic debris within the filtering element, the proximal inlet opening being larger than the outlet openings, the proximal edge of the filtering element being attached directly to the distal strut assembly.