Apparatus and method for the ligation of tissue
First Claim
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1. A method for closing a left atrial appendage of a patient'"'"'s heart, comprising:
- advancing a first guide member transeptally into the left atrial appendage, wherein the first guide member has a first alignment element for coupling with a counterpart alignment element on a second guide member, the first alignment element located at a distal end of the first guide member;
advancing a second guide member from the outside of the patient'"'"'s heart into a pericardial space of the patient, wherein the second guide member has a second alignment element located at a distal end thereof;
aligning the first and second alignment elements, such that the alignment members couple;
advancing a ligating element over the left atrial appendage, wherein the ligating element is advanced with respect to the second guide member; and
closing the left atrial appendage using the ligating element.
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Abstract
A novel catheter-based system which ligates the left atrial appendage (LAA) on the outside of the heart, preferably using a combination of catheters and/or instruments, e.g., a guide catheter positioned inside the left atrial appendage which may assist in locating the left atrial appendage and/or assist in the optimal placement of a ligature on the outside of the appendage, and a ligating catheter and/or instrument outside the heart in the pericardial space to set a ligating element at the neck of the left atrial appendage.
294 Citations
15 Claims
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1. A method for closing a left atrial appendage of a patient'"'"'s heart, comprising:
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advancing a first guide member transeptally into the left atrial appendage, wherein the first guide member has a first alignment element for coupling with a counterpart alignment element on a second guide member, the first alignment element located at a distal end of the first guide member; advancing a second guide member from the outside of the patient'"'"'s heart into a pericardial space of the patient, wherein the second guide member has a second alignment element located at a distal end thereof; aligning the first and second alignment elements, such that the alignment members couple; advancing a ligating element over the left atrial appendage, wherein the ligating element is advanced with respect to the second guide member; and closing the left atrial appendage using the ligating element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification