Patent ID: 9277995
Filing Date: 2016-03-08
CPC Classification: A61F

Claim Text:
1. A device for treating heart failure of a patient, comprising: a stent for implantation in an inferior vena cava of the patient; at least one pressure control feature configured to prevent elevated blood pressure from damaging an organ or vessel, wherein the at least one pressure control feature is configured to allow blood flow in a first direction and to resist flow in a second direction opposite to the first direction blood flow in the first direction is allowed when a pressure on a first side of the device exceeds a pressure on a second side of the device by a first value; and at least one connector joining the at least one pressure control feature to said stent, wherein the stent comprises a pressure relief feature comprising a reversibly collapsible portion of the stent configured to reversibly collapse to permit blood to flow in the second direction and reduce pressure differential across the device when the pressure on the second side of the device exceeds the pressure on the first side of the device by a second value, the second value greater than the first value, and wherein the stent, not including the reversibly collapsible portion, is configured to maintain substantial circumferential contact with the inferior vena cava when the reversibly collapsible portion collapses.