Devices and methods for left atrial appendage closure
First Claim
1. A method of closing a left atrial appendage comprising:
- advancing a snare loop assembly to the left atrial appendage, the snare loop assembly comprising a snare loop and suture loop releasably coupled to the snare loop;
partially closing the snare loop assembly around the left atrial appendage;
ablating the left atrial appendage for a first period of time after partially closing the snare loop assembly;
further closing the snare loop assembly around the left atrial appendage to close the left atrial appendage;
ablating the left atrial appendage for a second period of time after further closing the snare loop assembly; and
releasing the suture loop from the snare loop assembly.
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Accused Products
Abstract
Described here are devices, systems, and methods for closing the left atrial appendage. The methods described here utilize a closure device for closing the left atrial appendage and guides or expandable elements with ablation or abrading elements to ablate or abrade the left atrial appendage. In general, these methods include positioning a balloon at least partially within the atrial appendage, positioning a closure assembly of a closure device around an exterior of the atrial appendage, inflating the balloon, partially closing the closure assembly, ablating the interior tissue of the atrial appendage with the inflated balloon, removing the balloon from the atrial appendage, and closing the atrial appendage with the closure assembly.
466 Citations
21 Claims
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1. A method of closing a left atrial appendage comprising:
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advancing a snare loop assembly to the left atrial appendage, the snare loop assembly comprising a snare loop and suture loop releasably coupled to the snare loop; partially closing the snare loop assembly around the left atrial appendage; ablating the left atrial appendage for a first period of time after partially closing the snare loop assembly; further closing the snare loop assembly around the left atrial appendage to close the left atrial appendage; ablating the left atrial appendage for a second period of time after further closing the snare loop assembly; and releasing the suture loop from the snare loop assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of ablating a left atrial appendage comprising:
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advancing a snare loop assembly around the left atrial appendage, the snare loop assembly comprising an ablation loop and a suture loop releasably coupled thereto; closing the snare loop assembly around the left atrial appendage; ablating the left atrial appendage with the ablation loop for a first period of time; adjusting at least a portion of the snare loop assembly around the left atrial appendage; and ablating the left atrial appendage with the ablation loop for a second period of time after adjusting at least a portion of the snare loop assembly. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification