Patent ID: 9700331
Date: 2017-07-11
CPC Classifications: A61B,A61F

Claim:
1. An embolic obstruction retrieval device comprising; an elongate self-expandable member having a radially expanded configuration and a radially unexpanded configuration, the expandable member comprising a plurality of generally longitudinal undulating elements with adjacent undulating elements being interconnected in a manner to form a plurality of diagonally disposed cell structures, the expandable member having a proximal antenna and a cylindrical main body portion, the cell structures in the cylindrical main body portion extending circumferentially around a longitudinal axis of the expandable member, the cell structures in the cylindrical main body portion comprising proximal and distal flexure elements that are interconnected by a pair of diagonally extending and circumferentially spaced-apart struts, each of the proximal and distal flexure elements having a first leg and a second leg that are joined at a connection point, at least some of the diagonally extending and circumferentially spaced-apart struts having one or more wires or ribbons wound thereabout so as to enhance the average deflection stiffness of all or a portion of the cylindrical main body portion when the self-expandable member is in the radially expanded configuration, the first legs of the proximal and distal flexure elements being free or substantially free of the wires or ribbons wound thereabout, the one or more wires or ribbons spanning diagonally across the connection points of the first and second legs.