Valve leaflet resection device
AssigneeMedtronic, Inc.
InventorsMatthew Genovese, Jonathan Primeaux, William Chang
Life of this patent
Estimating the term…
Abstract
A valve leaflet resection device includes a catheter (110), an electrode assembly (140) slidably disposed within the catheter and deployable from the catheter and configured to remove a portion of a leaflet of a heart valve, a leaflet retainer (130) slidably disposed within the catheter and deployable from the catheter, the leaflet retainer configured to grasp a leaflet of a heart valve, and a capture basket (120) configured to capture a resected portion of the leaflet of the heart valve upon retraction of the leaflet retainer.
Claims20
A valve leaflet resection device comprising:
- a catheter;
- an electrode assembly slidably disposed within the catheter and deployable from the catheter and configured to remove a portion of a leaflet of a heart valve, wherein the electrode assembly comprises a shape set wire including a first arm and a second arm, wherein the first arm and second arm include a straightened configuration wherein the first arm and the second arm are adjacent to each other and a splayed configuration wherein the first arm and the second arm are separated from each other, each of the first arm and the second arm including an electrode configured to resect a portion of the leaflet to be resected in the splayed configuration, wherein the shape set wire is shape set to the splayed configuration;
- a leaflet retainer slidably disposed within the catheter and deployable from the catheter, the leaflet retainer configured to grasp a leaflet of a heart valve;
- and
- a capture basket configured to capture a resected portion of the leaflet of the heart valve upon retraction of the leaflet retainer.
A valve leaflet resection device comprising:
- a catheter;
- an electrode assembly slidably disposed within the catheter and deployable from the catheter and configured to remove a portion of a leaflet of a heart valve;
- a leaflet retainer slidably disposed within the catheter and deployable from the catheter, the leaflet retainer configured to grasp a leaflet of a heart valve, the leaflet retainer comprises a wire including a hook at a distal end thereof, wherein the wire is shape set to form the hook as the wire is distally advanced out of the catheter, wherein the leaflet retainer further includes an electrode at the distal end thereof configured to pierce the leaflet to be resected;
- and
- a capture basket configured to capture a resected portion of the leaflet of the heart valve upon retraction of the leaflet retainer.
A method of resecting a portion of a leaflet comprising:
- advancing a leaflet resection device to a first side of a leaflet to be resected, the leaflet to be resected being a native leaflet or a leaflet of an implanted heart valve prosthesis;
- advancing an electrode assembly of the leaflet resection device through the leaflet such that at least a portion of the electrode assembly is disposed on a second side of the leaflet to be resected;
- grasping the leaflet to be resected with a leaflet retainer of the leaflet resection device;
- activating the electrode assembly to remove a portion of the leaflet to be resected while the leaflet retainer is grasping the portion of the leaflet to be resected;
- and
- retracting the leaflet retainer with the portion of the resected leaflet into a leaflet capture basket.
Dependencies are inferred from the claim text.