Transcatheter prosthetic heart valve delivery system with recapturing feature and method
First Claim
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1. A method of deploying a stented prosthetic heart valve to an implantation site, the method comprising:
- 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 delivery system;
delivering the prosthetic heart valve in the compressed arrangement through a bodily lumen of a 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 delivery sheath 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 sheath capsule by applying proximal forces to the inner shaft assembly such that the delivery sheath capsule 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 delivery sheath capsule; and
fully proximally retracting the delivery sheath capsule from the prosthetic heart valve such that the prosthetic heart valve self-deploys from the inner shaft assembly.
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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.
36 Citations
19 Claims
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1. 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 delivery system; delivering the prosthetic heart valve in the compressed arrangement through a bodily lumen of a 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 delivery sheath 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 sheath capsule by applying proximal forces to the inner shaft assembly such that the delivery sheath capsule 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 delivery sheath capsule; and fully proximally retracting the delivery sheath capsule from the prosthetic heart valve such that the prosthetic heart valve self-deploys from the inner shaft assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of deploying a stented prosthetic heart valve to an implantation site, the method comprising:
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loading a prosthetic heart valve into a delivery system, the delivery system including a delivery sheath assembly configured to be slidably disposed over an inner shaft assembly, a capsule of the delivery sheath assembly containing the prosthetic heart valve in a compressed state; delivering the prosthetic heart valve in the compressed state through a bodily lumen of a patient and to the implantation site via the delivery system; proximally operating a first actuator to retract the capsule of the delivery sheath assembly relative to the prosthetic heart valve to expose a distal end of the prosthetic heart valve, wherein the distal region self-expands; and proximally operating a second actuator to apply proximal forces on the inner shaft assembly of the delivery system and proximally advance the prosthetic heart valve relative to the delivery sheath assembly to cause the distal end of the prosthetic heart valve to transition toward the compressed state. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of deploying a stented prosthetic heart valve to an implantation site, the method comprising:
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loading a prosthetic heart valve into a delivery system including engaging the prosthetic heart valve with a coupling structure and compressively containing the prosthetic heart valve within a capsule; delivering the prosthetic heart valve in a compressed state through a bodily lumen of a patient and to the implantation site via the delivery system; at least partially deploying the prosthetic heart valve by proximally retracting the capsule 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 placement of the prosthetic heart valve; recapturing the prosthetic heart valve such that the prosthetic heart valve returns to the compressed state by proximally operating a first actuator away from a housing of the delivery system and distally operating a second actuator relative to the housing; repositioning the prosthetic heart valve at the implantation site; deploying the prosthetic heart valve at the implantation site by proximally retracting the capsule such that the prosthetic heart valve self-expands; and releasing the prosthetic heart valve from the delivery system. - View Dependent Claims (18, 19)
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Specification