Patent ID: 8211165

Claim:
A device for implantation in a body vessel, the device having a lengthwise axis and comprising: a hub member; a plurality of flexible struts, each strut having a first end attached to the hub member and a second end, wherein the struts are spring-biased to diverge from the hub member; a frame member extending only partially along a circumference of the device about said lengthwise axis and at an angle with respect to said lengthwise axis from a first attachment point with a first of the plurality of struts to a second attachment point with a second of the plurality of struts, wherein the frame member contacts at least a third of the plurality of struts; and a leaflet having a perimeter, a first portion of the perimeter extending along and continuously attached to the frame member from the first attachment point to the second attachment point and a second portion of the perimeter free of contact with the frame member; wherein the leaflet is deformable between a first position allowing fluid flow in a first, antegrade direction and a second position restricting fluid flow in a second, retrograde direction.