Apparatus and method for the ligation of tissue
AssigneeSentreHEART, Inc.
InventorsJohn R. Liddicoat, William E. Cohn, Roger Laham
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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.
Claims18
A method for positioning a ligating device near a patient's heart comprising:
- advancing a first alignment element transeptally into a left atrial appendage;
- expanding an expandable element relative to the first alignment element;
- advancing a second alignment element into a pericardial space from outside a patient's heart;
- aligning the first and second alignment elements to assist in positioning the ligating device, wherein the ligating device comprises a ligating element that is releasably secured to a nitinol structure;
- and
- advancing the ligating element to the left atrial appendage.
Dependencies are inferred from the claim text.