Vascular flow management

Abstract

Implant devices are provided for restoring compliance characteristics to blood vessels. An exemplary implant device includes an outer tubular frame having a diameter than varies along a longitudinal axis and a radially expandable tube disposed within the frame. Further disclosed are implant devices including a frame having an axially convex form that expands in diameter moving from first and second axial ends of the frame to a medial portion of the frame, and a cylindrical toroidal balloon member comprising one or more gas-filled chambers disposed at least partially within the frame. Further disclosed are implant devices including a tubular frame comprising a first axial segment and a second axial segment, a radially expandable tube disposed within the first axial segment of the frame, and a one-way valve disposed within the second axial segment of the frame.

Dependencies are inferred from the claim text.