Transcatheter Prosthetic Heart Valve Delivery System with Recapturing Feature and Method
First Claim
1. A delivery system for percutaneously deploying a stented prosthetic heart valve, the system comprising:
- an inner shaft assembly including an intermediate portion providing a coupling structure configured to selectively engage a prosthetic heart valve;
a delivery sheath capsule slidably disposed over the inner shaft assembly and configured to compressively contain a prosthetic heart valve engaged with the coupling structure; and
a handle coupled to the inner shaft assembly and the delivery sheath capsule, the handle maintaining a first actuator selectively applying forces to the distal sheath capsule and a second actuator selectively applying forces to the inner shaft assembly to retract the prosthetic heart valve and promote recapture of the prosthetic heart valve within the delivery system.
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Accused Products
Abstract
A delivery system for percutaneously deploying a prosthetic heart valve. The system includes an inner shaft assembly, a delivery sheath capsule and a handle maintaining a first actuator and a second actuator. The capsule is configured to compressively retain the prosthetic heart valve over the inner shaft assembly. The first actuator is operated to proximally retract the delivery sheath capsule and expose the prosthetic heart valve relative to the capsule. The second actuator is operated to proximally retract the prosthetic heart valve by transmitting forces to the inner shaft assembly.
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Citations
15 Claims
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1. A delivery system for percutaneously deploying a stented prosthetic heart valve, the system comprising:
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an inner shaft assembly including an intermediate portion providing a coupling structure configured to selectively engage a prosthetic heart valve; a delivery sheath capsule slidably disposed over the inner shaft assembly and configured to compressively contain a prosthetic heart valve engaged with the coupling structure; and a handle coupled to the inner shaft assembly and the delivery sheath capsule, the handle maintaining a first actuator selectively applying forces to the distal sheath capsule and a second actuator selectively applying forces to the inner shaft assembly to retract the prosthetic heart valve and promote recapture of the prosthetic heart valve within the delivery system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device for repairing a heart valve of a patient, the device comprising:
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a delivery system including; an inner shaft assembly including an intermediate portion providing a coupling structure, a delivery sheath capsule slidably disposed over the inner shaft assembly, a handle coupled to the inner shaft assembly, and the delivery sheath capsule, the handle maintaining a first actuator coupled to the delivery sheath capsule and a second actuator coupled to the inner shaft assembly; and a prosthetic heart valve having a frame and a valve structure attached to the frame and forming at least two valve leaflets, the prosthetic heart valve being self-expandable from a compressed arrangement to a natural arrangement; wherein the device is configured to be transitionable between; a loaded state in which the prosthetic heart valve engages the coupling structure and is compressively retained within the capsule portion, a partially deployed state in which the capsule is at least partially withdrawn from the prosthetic heart valve upon operation of the first actuator such that a distal region of the prosthetic heart valve is exposed relative to the capsule and self-expands, and a recapturing state in which the prosthetic heart valve is retracted into the delivery system upon operation of the second actuator to transmit proximal forces to the prosthetic heart valve. - View Dependent Claims (9, 10, 11)
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12. A method of deploying a stented prosthetic heart valve to an implantation site, the method comprising:
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receiving a delivery system loaded with a radially expandable prosthetic heart valve having a frame to which a valve structure is attached, the delivery system including a delivery sheath capsule containing the prosthetic heart valve in a compressed arrangement over an inner shaft assembly in a loaded state of the system; delivering the prosthetic heart valve in the compressed arrangement through a bodily lumen of the patient and to the implantation site via the delivery system in the loaded state; proximally retracting the delivery sheath capsule relative to the prosthetic heart valve such that a distal region of the prosthetic heart valve is exposed distal the capsule, wherein the distal region self-expands toward a deployed arrangement; evaluating a position of the prosthetic heart valve relative to the implantation site; proximally advancing the prosthetic heart valve relative to the delivery system by applying proximal forces to the inner shaft assembly such that the delivery system is arranged over the prosthetic heart valve to cause the distal region of the prosthetic heart valve to transition toward the collapsed arrangement within the capsule; and fully proximally retracting the recapture assembly from the prosthetic heart valve such that the prosthetic heart valve self-deploys from the inner shaft assembly. - View Dependent Claims (13, 14, 15)
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Specification