METHOD FOR CLOSURE AND ABLATION OF ATRIAL APPENDAGE
First Claim
1. A device for ligating a left atrial appendage, the device comprising:
- a first elongate body including a proximal portion and a thermally transmissive distal portion; and
a second elongate body having a proximal portion and a distal portion, the distal portion of the second elongate body being releasably engageable with the proximal portion of the second elongate body.
1 Assignment
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Accused Products
Abstract
A device, system, and method for ligating the left atrial appendage without creating pro-arrhythmic tissue. The device may generally include a snare including a thermally transmissive distal portion and a suture including a distal portion, both distal portions having a lasso-shaped configuration that may be positioned proximate the base of the left atrial appendage. Once the distal portions of the snare and the suture are tightened around the base of the left atrial appendage, the thermally transmissive distal portion of the snare may be activated to create an ablation lesion in adjacent left atrial appendage tissue. The lesion may be created with radiofrequency energy or through cryoablation by the circulation of refrigerant within the thermally transmissive distal portion of the snare.
146 Citations
22 Claims
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1. A device for ligating a left atrial appendage, the device comprising:
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a first elongate body including a proximal portion and a thermally transmissive distal portion; and a second elongate body having a proximal portion and a distal portion, the distal portion of the second elongate body being releasably engageable with the proximal portion of the second elongate body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for ligating a left atrial appendage, the system including:
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a ligation device including; a snare having an elongate body having a proximal portion and a thermally transmissive distal portion, the thermally transmissive distal portion having a lasso-shaped configuration defining a first diameter; and a suture having an elongate body having a proximal portion and a distal portion, the distal portion having a lasso-shaped configuration defining a second diameter; and a console in at least one of electrical communication and fluid communication with the thermally transmissive distal portion of the snare. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A method of ligating a left atrial appendage of a patient, the method comprising:
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adjusting a diameter of a lasso-shaped, thermally transmissive distal portion of a first medical device to a first diameter such that the distal portion of the first medical device is in contact with the left atrial appendage; adjusting a diameter of a lasso-shaped distal portion of a second medical device to a second diameter such that the distal portion of the second medical device is in contact with the left atrial appendage, the second diameter being approximately the same as the first diameter; and ablating a portion of the left atrial appendage proximate the distal portion of the second medical device with the distal portion of the first medical device. - View Dependent Claims (21, 22)
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Specification