Delivery system for aided replacment valve recapture and repositioning post-deployment
AssigneeEdwards Lifesciences Corporation
InventorsHarish Manickam Srinimukesh, Travis Zenyo Oba, David Robert Landon, Glen T. Rabito
Life of this patent
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Abstract
Disclosed herein are embodiments of a delivery system which can be used to recapture and/or reposition a replacement valve, such as a replacement mitral valve, after initial deployment of the valve. Embodiments of the disclosure can use the crimping/tensioning of sutures in order to re-crimp the replacement valve after release, though longitudinal or rotational forces.
Claims20
A delivery system for a replacement valve, the delivery system comprising:
- a tether configured to releasably hold a replacement valve;
- a torqueing manifold configured to retain a first end of the tether;
- and
- an engagement pin configured to move from a locked position to an unlocked position, the engagement pin configured to releasably retain a second end of the tether;
- wherein longitudinal translation of the engagement pin from the locked position to the unlocked position releases the second end of the tether and the replacement valve from the delivery system;
- and
- wherein rotational movement of the torqueing manifold with respect to the engagement pin is configured to crimp or uncrimp a portion of the replacement valve.
A delivery system for a replacement heart valve, the delivery system comprising:
- a plurality of tethers;
- a torqueing manifold located on a distal end of a manifold shaft, the torqueing manifold configured to retain a first end of each of the plurality of tethers;
- a plurality of engagement pins each configured to move from a locked position to an unlocked position, each of the plurality of engagement pins configured to releasably retain a second end of each of the plurality of tethers;
- and
- a replacement heart valve having a plurality of eyelets, each of the plurality of tethers extending through one of the plurality of eyelets;
- wherein translation of each of the plurality of engagement pins from the locked position to the unlocked position releases the second end of each of the plurality of tethers and the replacement heart valve from the delivery system.
A method of releasing a replacement valve from a delivery system, the method comprising:
- expanding the replacement valve from a compressed configuration to an expanded configuration, the replacement valve having a distal end and a proximal end, the replacement valve releasably attached to a manifold of the delivery system at a location distal to the replacement valve through at least one tether releasably retained on an engagement pin connected to the manifold in a locked position;
- rotating a manifold shaft located radially inwards of the replacement valve in a first direction with respect to a locking shaft, wherein the manifold shaft has the manifold on a distal end located distal to the replacement valve, wherein the at least one tether is connected to the manifold and the locking shaft, and wherein the manifold shaft is located within a lumen of the locking shaft, wherein the rotating the manifold shaft in the first direction loosens the at least one tether to uncrimp the distal end of the replacement valve;
- and
- proximally translating the engagement pin from the locked position to an unlocked position outside of the manifold, thereby releasing the at least one tether and the replacement valve.
Dependencies are inferred from the claim text.