Medical device for modification of left atrial appendage and related systems and methods
AssigneeCoherex Medical, Inc.
InventorsScott D. Miles, Brian K. Whisenant, Daryl R. Edmiston, Clark C. Davis
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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.
Claims16
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 from the catheter, the medical device rotatably coupled to a threaded pusher member;
- 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 threaded pusher member relative to the tissue growth member.
A method for modifying a left atrial appendage, comprising:
- 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 from the sheath;
- and
- disengaging a threaded pusher member from 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.
Dependencies are inferred from the claim text.