Patent ID: 7651529

Claim:
A system for reducing approximation of a plurality of wound edges of a stricture that affects a cross-sectional area of a lumen in a mammal, the system comprising: a body defining a passageway for fluid flow and positionable in the lumen; a separating device disposed relative to the body for adjusting the cross-sectional area of the lumen, the separating device including a first wing, a second wing, and at least one rib disposed on an inside surface of at least one of the first and second wing, the first wing being configured to rotate about a first axis in a first direction to move from a collapsed configuration to an expanded configuration, the second wing configured to rotate about a second axis in a second direction to move from a collapsed configuration to an expanded configuration, the first axis and the second axis being substantially parallel to the passageway, the first direction different from the second direction, and an actuating mechanism in communication with the at least one rib to adjust the amount of opening of the first wing or the second wing.