Method and system for closing left atrial appendage
First Claim
1. A method for resizing a left atrium appendage comprising,inserting a locating wire from a right atrium, across an atrial septum, across a left atrium, and into a left atrial appendage (LAA) chamber,advancing the locating wire through a tissue wall at a first location inside the LAA chamber,subsequently, implanting a first tissue anchor at the first location by advancing the first tissue anchor along the locating wire and into the tissue wall at the first location,subsequently, and independently of advancing the locating wire through the tissue wall at the first location, advancing the locating wire through the tissue wall at a second location inside the LAA chamber,subsequently, implanting a second tissue anchor at the second location by advancing the second tissue anchor along the locating wire and into the tissue wall at the second location, andsubsequently, pulling the first and second tissue anchors toward each other so that the first and second locations of the LAA chamber are pulled together.
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Accused Products
Abstract
The present teachings provide methods for resizing, reducing, and closing left atrial appendage. Specifically, a percutaneous trans-septal access is first established from outside the body to a patient'"'"'s LAA. At least two tissue anchors are then implanted inside the LAA chamber and along the tissue wall. At least one anchor is implanted near the opening of the LAA camber. Both tissue anchors are pulled together so that the wall of the LAA chamber collapse. The LAA chamber is therefore resized, reduced, and/or closed off completely. This closure method and system could be used alone in closing LAA chamber. This closure method and system could also be used in addition to other treatment mechanisms, such as filling the LAA chamber with space-filling material, then closing off its opening.
842 Citations
17 Claims
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1. A method for resizing a left atrium appendage comprising,
inserting a locating wire from a right atrium, across an atrial septum, across a left atrium, and into a left atrial appendage (LAA) chamber, advancing the locating wire through a tissue wall at a first location inside the LAA chamber, subsequently, implanting a first tissue anchor at the first location by advancing the first tissue anchor along the locating wire and into the tissue wall at the first location, subsequently, and independently of advancing the locating wire through the tissue wall at the first location, advancing the locating wire through the tissue wall at a second location inside the LAA chamber, subsequently, implanting a second tissue anchor at the second location by advancing the second tissue anchor along the locating wire and into the tissue wall at the second location, and subsequently, pulling the first and second tissue anchors toward each other so that the first and second locations of the LAA chamber are pulled together.
Specification