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;
pushing a medical device having tines through a lumen of the catheter;
anchoring the medical device within the left atrial appendage;
deploying a tissue growth member of the medical device by exposing the tissue growth member from the catheter so that, as the tissue growth member is exposed, the tissue growth member self-expands to a deployed position, the medical device including threads being directly rotatably coupled to a threaded pusher member; and
maintaining the 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 threaded 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.
184 Citations
16 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; pushing a medical device having tines through a lumen of the catheter; anchoring the medical device within the left atrial appendage; deploying a tissue growth member of the medical device by exposing the tissue growth member from the catheter so that, as the tissue growth member is exposed, the tissue growth member self-expands to a deployed position, the medical device including threads being directly rotatably coupled to a threaded pusher member; and maintaining the 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 threaded pusher member relative to the tissue growth member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for modifying a left atrial appendage, comprising:
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positioning a sheath adjacent the left atrial appendage; pushing a medical device having tines through a lumen of the sheath; anchoring the medical device to the left atrial appendage with the tines; deploying a tissue growth member of the medical device by exposing the tissue growth member from the catheter so that, as the tissue growth member is exposed, the tissue growth member self-expands to a deployed position; and disengaging a threaded pusher member from threads of the medical device upon collapsing multiple fingers of a locking element directly dependent upon proximally displacing the threaded pusher member relative to the tissue growth member. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification