Medical device for modification of left atrial appendage and related systems and methods
First Claim
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1. A method for modifying a left atrial appendage, comprising:
- positioning a catheter adjacent the left atrial appendage;
anchoring a tether within the left atrial appendage;
sliding at least one tissue growth member over the tether with a pusher member having threads such that the pusher member is rotatably coupled to a hub of the tissue growth member;
deploying the at least one tissue growth member within the left atrial appendage; and
maintaining the at least one tissue growth member in the left atrial appendage with a locking element, the locking element including multiple fingers that collapse directly dependent upon proximally moving the pusher member relative to the tissue growth member.
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Abstract
A medical device, system and method for modifying a left atrial appendage (“LAA”). The medical device system includes a tether anchored within the LAA and one or more tissue growth members or occluders configured to be slid over the tether and lodged within the LAA. With this arrangement, a physician may close-off the LAA with a selective number of tissue growth members to meet the varying LAA sizes as determined from imaging information while conducting the procedure.
172 Citations
20 Claims
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1. A method for modifying a left atrial appendage, comprising:
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positioning a catheter adjacent the left atrial appendage; anchoring a tether within the left atrial appendage; sliding at least one tissue growth member over the tether with a pusher member having threads such that the pusher member is rotatably coupled to a hub of the tissue growth member; deploying the at least one tissue growth member within the left atrial appendage; and maintaining the at least one tissue growth member in the left atrial appendage with a locking element, the locking element including multiple fingers that collapse directly dependent upon proximally moving the pusher member relative to the tissue growth member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for modifying a left atrial appendage, comprising:
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positioning a catheter adjacent the left atrial appendage; pushing a medical device having tines through a lumen of the catheter; anchoring the medical device to the left atrial appendage with the tines; deploying a tissue growth member of the medical device from the catheter with a pusher member having threads rotatably coupled to the medical device; collapsing multiple fingers of a locking element directly dependent upon proximally displacing the pusher member relative to the tissue growth member; and disengaging the pusher member from the medical device. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification