Valve leaflet resection device
AssigneeMedtronic, Inc.
InventorsJonathan Primeaux, Matthew Genovese, William Chang
Life of this patent
Estimating the term…
Abstract
A leaflet resection device includes a first jaw, a second jaw pivotably connected to the first jaw, a first linkage assembly coupled to the first jaw, and a second linkage assembly coupled to the second jaw. The second linkage assembly includes a first resection blade and a second resection blade that are configured to cut a leaflet of a native heart valve or a previously implanted valve prosthesis along a curved path when the first and second linkage assemblies are actuated.
Claims20
A leaflet resection device having a central longitudinal axis, the leaflet resection device comprising:
- a first jaw, the first jaw including a distal end and a proximal end;
- a second jaw pivotably coupled to and opposing the first jaw, the second jaw including a distal end and a proximal end;
- a first linkage assembly coupled to the first jaw, the first linkage assembly including:
- a first arm having a first proximal arm, a first distal arm, and a first pivot point pivotably coupling the first proximal arm and the first distal arm;
- a second arm having a second proximal arm, a second distal arm, and a second pivot point pivotably coupling the second proximal arm and the second distal arm, wherein the first and second distal arms cross and are pivotably connected at a first distal pivot point distal of the first and second pivot points;
- a first resection blade coupled to a distal end of the first distal arm and extending towards the second jaw;
- and
- a second resection blade coupled to a distal end of the second distal arm and extending towards the second jaw;
- and
- an actuator coupled to the first linkage assembly;
- wherein in a delivery configuration, the first linkage assembly is elongated such that the first and second arms are disposed laterally within the first jaw, and when actuated by the actuator, the first arm pivots about the first pivot point and the first distal pivot point, and the second arm pivots about the second pivot point and the first distal pivot point such that the distal ends of the first and second distal arms move along a curved path proximally and outwardly relative to the central longitudinal axis of the leaflet resection device.
A leaflet resection device having a central longitudinal axis, the leaflet resection device comprising:
- a first jaw, the first jaw including a distal end and a proximal end;
- a second jaw pivotably coupled to and opposing the first jaw, the second jaw including a distal end and a proximal end;
- a first linkage assembly coupled to the first jaw, the first linkage assembly including:
- a first arm having a first proximal arm, a first distal arm, and a first pivot point pivotably coupling the first proximal arm and the first distal arm;
- a second arm having a second proximal arm, a second distal arm, and a second pivot point pivotably coupling the second proximal arm and the second distal arm, wherein the first and second distal arms cross and are pivotably connected at a first distal pivot point distal of the first and second pivot points;
- a first resection blade coupled to a distal end of the first distal arm and extending towards the second jaw;
- and
- a second resection blade coupled to a distal end of the second distal arm and extending towards the second jaw;
- and
- an actuator coupled to the first linkage assembly;
- wherein the first jaw and the second jaw are configured to grasp a leaflet, and
- wherein with the leaflet grasped in the first and second jaws, the actuator is configured to move the first linkage assembly such that the first and second resection blades move in a curved path to resect at least 50% of the leaflet.
Dependencies are inferred from the claim text.