Patent ID: 8109962

Claim:
A retrievable device for treatment of a stenotic lesion in a body vessel, the device comprising: a reticulation portion having an expanded state and a collapsed state, the reticulation portion including a plurality of struts connected together in a singly staggered configuration distally along a longitudinal axis to allow a pair of struts to singly fold distally along the longitudinal axis in the collapsed state, the plurality of struts being connected together at pivotal joints along the reticulation portion, each pivotal joint connecting a pair of struts, the reticulation portion including a proximal most pivotal joint, wherein the number of pivotal joints singly increases without doubly increasing distally along the longitudinal axis from the proximal most pivotal joint to a distal end of the reticulation portion, the plurality of struts of the reticulation portion being configured to fold along the longitudinal axis defining the collapsed state of the device for retrieval; wherein each joint is staggered such that each joint is disposed in a plane that is parallel to the longitudinal axis and in a plane that is perpendicular to the longitudinal axis such that each parallel plane does not overlap with another parallel plane and each perpendicular plane does not overlap with another perpendicular plane, an expandable body distally extending from the distal end of the reticulation portion along an outer diameter for treatment of the stenotic lesion, the expandable body being configured to expand in the open state and collapsed in the collapsed state of the reticulation portion for retrieval; and a retrieval stem extending proximally from the reticulation portion for retrieval of the device in the collapsed state.