Patent ID: 9017364
Filing Date: 2015-04-28
Classification: A61B,A61F

Abstract:
1. An intravascular filter, comprising: a proximal sheath; a proximal shaft extending through the proximal sheath; an expandable proximal filter carried by the proximal shaft and collapsed within the proximal sheath; an articulable distal sheath extending through the proximal shaft, the articulable distal sheath having an articulation zone comprising a pull wire, wherein proximal retraction of the pull wire causes the articulation zone to articulate; an elongate, flexible tubular body, having a proximal end and a distal end, and a guidewire lumen extending therethrough, the elongate flexible tubular body extending through the articulable sheath; a filter frame comprising a loop and a strut; the loop residing in a plane that intersects the tubular body at a non normal angle, and the strut connecting the loop to the tubular body; a filter membrane extending from the loop in a distal direction to a point of attachment to the tubular body; and a flex zone on the tubular body positioned proximal to the filter frame and distal to the expandable proximal filter, the flex zone having a different flexibility than proximal and distal adjacent portions of the tubular body and wherein the guidewire lumen extends through the flex zone.