Devices, systems, and methods for closing the left atrial appendage
First Claim
1. A device for closing the left atrial appendage comprising:
- an elongate body having a proximal end and a distal end;
a closure element comprising a loop defining a continuous aperture therethrough, the closure element at least partially housed within the elongate body and comprising a first end fixed relative to the elongate body and a second end moveable relative to the elongate body to change the size of the aperture;
a suture loop, the suture loop at least partially housed within the elongate body; and
a retention member, wherein the retention member is configured to releasably couple the closure element and the suture loop, wherein the retention member comprises first and second coextensive lumens, wherein the closure element is housed within the first lumen and the suture loop is housed within the second lumen.
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Accused Products
Abstract
Described here are devices, systems and methods for closing the left atrial appendage. Some of the methods described here utilize one or more guide members having alignment members to aid in positioning of a closure device. In general, these methods include advancing a first guide having a first alignment member into the left atrial appendage, advancing a second guide, having a second alignment member, into the pericardial space, aligning the first and second alignment members, advancing a left atrial appendage closure device into the pericardial space and adjacent to the left atrial appendage, and closing the left atrial appendage with the closure device. In these variations, the closure device typically has an elongate body having a proximal end and a distal end, and a closure element at least partially housed within the elongate body. The closure element comprises a loop defining a continuous aperture.
371 Citations
41 Claims
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1. A device for closing the left atrial appendage comprising:
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an elongate body having a proximal end and a distal end; a closure element comprising a loop defining a continuous aperture therethrough, the closure element at least partially housed within the elongate body and comprising a first end fixed relative to the elongate body and a second end moveable relative to the elongate body to change the size of the aperture; a suture loop, the suture loop at least partially housed within the elongate body; and a retention member, wherein the retention member is configured to releasably couple the closure element and the suture loop, wherein the retention member comprises first and second coextensive lumens, wherein the closure element is housed within the first lumen and the suture loop is housed within the second lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for closing a left atrial appendage comprising:
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a first guide having a size and length adapted for accessing the left atrial appendage through the vasculature, wherein the first guide comprises a first alignment member; a second guide having a size and length adapted for accessing the pericardial space from a subthoracic region, wherein the second guide comprises a second alignment member; and a closure device comprising an elongate body having a proximal end and a distal end, a closure element housed at least partially therein, wherein the closure element comprises a loop defining a continuous aperture therethrough, a first end fixed relative to the elongate body and a second end moveable relative to the elongate body to change the size of the aperture, a suture loop at least partially housed in the elongate body, and a retention member configured to releasably couple the suture loop and the closure element, wherein the retention member comprises first and second coextensive lumens, wherein the closure element is housed within the first lumen and the suture loop is housed within the second lumen. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification