Device and methods for preventing formation of thrombi in the left atrial appendage
First Claim
1. A device for promoting drainage of the vascular flow from the left atrial appendage of a heart, the left atrial appendage having an internal wall, said device comprising:
- a liner having a proximal end and a distal end, the liner adapted to be positioned adjacent to a plurality of surfaces of the interior wall of the left atrial appendage such that the liner smoothes the plurality of surfaces of the interior wall; and
an anchor component attached to at least a portion of the liner, the anchor component adapted for securing at least a portion of the device within the left atrial appendage.
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Accused Products
Abstract
The embodiments of the present invention provide a device that modifies the left atrial appendage (LAA) to reduce the likelihood of thrombus formation therein. The device includes a liner that reduces the volume of the LAA and remodels the interior geometry and surfaces of the LAA thereby minimizing the crenellations in the LAA that impede blood flow. According to some embodiments, the device further includes an anchor component. The anchor component helps to expand the liner upon deployment of the device in-vivo and further prevents dislodgement and migration of the device, by ensuring the device is properly seated and completely sealed against the walls and ostium of the LAA.
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Citations
43 Claims
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1. A device for promoting drainage of the vascular flow from the left atrial appendage of a heart, the left atrial appendage having an internal wall, said device comprising:
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a liner having a proximal end and a distal end, the liner adapted to be positioned adjacent to a plurality of surfaces of the interior wall of the left atrial appendage such that the liner smoothes the plurality of surfaces of the interior wall; and
an anchor component attached to at least a portion of the liner, the anchor component adapted for securing at least a portion of the device within the left atrial appendage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for enhancing vascular flow within the left atrial appendage of a heart, said method comprising the steps of:
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positioning a device to prevent formation of thrombi through a catheter system in a proximal end of the left atrial appendage, the proximal end having an ostium, the device having a liner and an anchor component;
expanding the liner of the device in the left atrial appendage (LAA) by using the expandable anchor component wherein the liner extends from the proximal end of the LAA to a distal end of the LAA; and
remodeling a plurality of internal surfaces of the internal wall of the LAA using the liner thereby reducing the volume of the LAA and minimizing a plurality of crenellations in the LAA to enhance vascular flow within the LAA. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for manufacturing a device for preventing formation of thrombi in an anatomical appendage, said method comprising the steps of:
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providing a liner having a proximal end and a distal end; and
affixing an anchor component to at least a portion of the proximal end of the liner. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method for deploying in-vivo a device for minimizing the formation of thrombi in a left atrial appendage (LAA) of a heart, the method comprising the steps of:
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inserting a catheter into the right atrium of the heart through a lumen of the body for delivering the device, the catheter including a delivery system;
puncturing the septal tissue and placing a guidewire through the septal puncture and into the left atrium;
positioning a dilator over the guidewire through the catheter, advancing the dilator and catheter through the septal puncture until they reach an ostium of the LAA;
removing the dilator and guidewire;
inserting the device having a liner and anchor component, the device inserted in a collapsed form into the catheter; and
deploying the device into the ostium of the LAA. - View Dependent Claims (40, 41, 42, 43)
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Specification