Patent ID: 8128653

Claim:
A method for closing an aperture in a vessel wall, the aperture having an external opening in an external region of the vessel wall and an internal opening in an internal region of the vessel wall, the method comprising: providing a delivery tube having a longitudinal axis, a distal opening and a pusher slidable therein; providing a closure device having an elongated member having a longitudinal axis and at least two legs proximal of the elongated member, the elongated member and the at least two legs positioned inside the delivery tube so the longitudinal axis of the elongated member is more aligned with the longitudinal axis of the delivery tube than in a placement position and a longitudinal axis of the at least two legs is more aligned with a longitudinal axis of the delivery tube than in a placement position, the elongated member having a length and a width, the length exceeding the width; inserting the delivery tube through the aperture into the vessel so the distal opening of the delivery tube is within the vessel; moving the pusher to advance the elongated member through the distal opening of the delivery tube into the vessel; retracting the delivery tube to pivot the elongated member to a transverse position against the internal opening of the aperture, the elongated member having a dimension at least substantially equal to a dimension of the internal opening of the aperture to prevent egress of fluid through the aperture; and retracting the delivery tube further to release the at least two legs outside the vessel to engage tissue outside the vessel as the legs curve in opposing directions to extend distally toward the elongated member.