Closure devices, related delivery methods, and related methods of use
A device for sealing a patent foramen ovale (PFO) in the heart is provided. The device includes a left atrial anchor adapted to be placed in a left atrium of the heart, a right atrial anchor adapted to be placed in a right atrium of the heart, and an elongate member adapted to extend through the passageway and connect the left and right atrial anchors. The right atrial anchor preferably includes a plurality of arms and a cover attached to the arms. The left atrial anchor preferably also includes a plurality of arms and preferably does not include a cover. Preferably, the elongate member has a first end fixedly connected to the left atrial anchor and a portion, proximal to the first end, passing through the right atrial anchor. Preferably, the elongate member is flexible.
1 - 90 . (canceled)
91 . A system for sealing a passage in a heart, the system comprising:
a delivery catheter capable of extending to a position near the passage;
a closure device capable of sealing the passage, the device including a first anchor adapted to be placed proximate a first end of the passage, a second anchor adapted to be placed proximate a second end of the passage, and a flexible elongate member adapted to extend through the passage and connect the first and second anchors; and
a cutting tool capable of extending over the flexible elongate member to a position near the second anchor.
92 . The system of claim 91 , wherein the cutting tool includes a guide member for guiding the flexible elongate member.
93 . The system of claim 92 , wherein the guide member includes a distal opening through which the flexible elongate member enters the cutting tool and a lateral opening through which the flexible elongate member exits the cutting tool.
94 . The system of claim 92 , wherein the cutting tool further includes a cutting element disposed around the guide member.
95 . The system of claim 94 , wherein the cutting element is movable relative to the guide member to cut the flexible elongate member as it exits the guide member through a lateral opening of the guide member.
96 . The system of claim 91 , further comprising a guide catheter capable of extending to a position near the passage.
97 . The system of claim 91 , further comprising a loading tube.
98 . The system of claim 97 , wherein the closure device is positionable within the loading tube in a collapsed state.
99 . The system of claim 91 , wherein the second anchor includes a plurality of second loop structures.
100 - 108 . (canceled)
109 . The system of claim 94 , wherein the cutting element is formed of stainless steel.
110 . The system of claim 94 , wherein the cutting element includes a sharpened distal edge.
111 . The system of claim 94 , wherein the cutting tool includes a handle mechanism configured to move the cutting element relative to the guide member.
112 . The system of claim 111 , wherein the handle mechanism is configured to rotate the cutting element.
113 . The system of claim 111 , wherein the handle mechanism is configured to advance the cutting element distally.