Patent ID: 6537296
Filing Date: 2003-03-25
Classification: A61B,A61F

Abstract:
A filter device for capturing embolic material in a blood vessel comprising:a guide wire having a proximal end, a distal end and a stop near said distal end; an expandable frame of frame struts having a closed, radially compact form and an open, radially expanded form, said frame of frame struts in said radially expanded form forming a pair of facing frustoconical frame structures, said expandable frame adapted to be movably mounted on and travel on said guide wire; a filter material attached to one of said pair of frustoconical frame structures; and said expandable frame being adapted to be freely movable over said guide wire, both rotatably and longitudinally except distally beyond said stop; and an actuator sleeve adapted to run over said guide wire, said actuator sleeve enabling longitudinal compression of said expandable frame and frame struts thereby causing said frame to radially expand and deploy said filter material, and said actuator sleeve including mains for temporarily latching said sleeve and expandable frame in one of a compressed state and a filter deployed state.