Transcatheter prosthetic heart valve delivery system with recapturing feature
First Claim
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1. A method of deploying a stented prosthetic heart valve to an implantation site, the method comprising the steps of;
- receiving a delivery system on which an expandable prosthetic heart valve is provided in a first compressed arrangement within a capsule of the delivery system;
wherein the delivery system further includes a recapture assembly that is longitudinally spaced apart from the prosthetic heart valve at a position proximal to the prosthetic heart valve when the prosthetic heart valve is in the first compressed arrangement;
wherein the recapture assembly includes a recapture frame and a sleeve;
further wherein the recapture frame includes a wire frame formed of a shape memory material;
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;
retracting the capsule to allow the prosthetic heart valve to partially expand at the implantation site; and
distally advancing the recapture assembly relative to the prosthetic heart valve such that the prosthetic heart valve transitions to a second compressed arrangement within the recapture assembly.
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Accused Products
Abstract
A delivery system for percutaneously deploying a stented prosthetic heart valve. The system includes a delivery capsule and a recapture assembly. The capsule is configured to compressively retain the prosthesis. The recapture assembly includes a frame and sleeve attached to the frame. The recapture assembly is transitionable from a compressed arrangement to an expanded arrangement with a distally increasing diameter.
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Citations
17 Claims
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1. A method of deploying a stented prosthetic heart valve to an implantation site, the method comprising the steps of;
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receiving a delivery system on which an expandable prosthetic heart valve is provided in a first compressed arrangement within a capsule of the delivery system;
wherein the delivery system further includes a recapture assembly that is longitudinally spaced apart from the prosthetic heart valve at a position proximal to the prosthetic heart valve when the prosthetic heart valve is in the first compressed arrangement;
wherein the recapture assembly includes a recapture frame and a sleeve;
further wherein the recapture frame includes a wire frame formed of a shape memory material;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; retracting the capsule to allow the prosthetic heart valve to partially expand at the implantation site; and distally advancing the recapture assembly relative to the prosthetic heart valve such that the prosthetic heart valve transitions to a second compressed arrangement within the recapture 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 the steps of:
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receiving a delivery system on which an expandable prosthetic heart valve is provided in a first compressed arrangement within a capsule of the delivery system;
wherein the delivery system further includes a recapture assembly that is longitudinally spaced apart from the prosthetic heart valve at a position proximal to the prosthetic heart valve when the prosthetic heart valve is in the first compressed arrangement;
wherein the recapture assembly includes a recapture frame and sleeve, further wherein the recapture frame forms a support structure defining an internal surface and wherein the sleeve is attached to the internal surface;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; retracting the capsule to allow the prosthetic heart valve to partially expand at the implantation site; and distally advancing the recapture assembly relative to the prosthetic heart valve such that the prosthetic heart valve transitions to a second compressed arrangement with the recapture assembly.
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11. 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 stent frame to which a valve structure is attached, the delivery system including a capsule containing the prosthetic heart valve in a compressed arrangement over an inner shaft assembly in a loaded state of the system, and a recapture assembly including a recapture frame and sleeve slidably disposed over the inner shaft assembly, the recapture assembly being longitudinally spaced from the prosthetic heart valve in the loaded state;
wherein the capsule is provided as part of a delivery sheath assembly further including a delivery sheath shaft, and further wherein the recapture assembly is slidably disposed between the delivery sheath assembly and the inner shaft assembly;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 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; distally advancing the recapture assembly relative to the prosthetic heart valve such that the recapture assembly is distal the capsule and expands to an expanded arrangement having a distally increasing diameter; distally advancing the recapture frame over the prosthetic heart valve; arranging the recapture assembly over the prosthetic heart valve to cause the distal region of the prosthetic heart valve to transition toward the collapsed arrangement within the recapture assembly; 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 (12, 13, 14)
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15. 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 stent frame to which a valve structure is attached, the delivery system including a capsule containing the prosthetic heart valve in a compressed arrangement over an inner shaft assembly in a loaded state of the system, and a recapture assembly including a recapture frame and sleeve slidably disposed over the inner shaft assembly, wherein the recapture frame includes a wire frame formed of a shape memory material;
the recapture assembly being longitudinally spaced from the prosthetic heart valve in the loaded state;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 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; distally advancing the recapture assembly relative to the prosthetic heart valve such that the recapture assembly is distal the capsule and expands to an expanded arrangement having a distally increasing diameter; distally advancing the recapture frame over the prosthetic heart valve; arranging the recapture assembly over the prosthetic heart valve to cause the distal region of the prosthetic heart valve to transition toward the collapsed arrangement within the recapture assembly;
wherein arranging the recapture sheath assembly over the prosthetic heart valve to recapture the prosthetic heart valve includes sliding the frame and sleeve over the prosthetic heart valve; andfully proximally retracting the recapture assembly from the prosthetic heart valve such that the prosthetic heart valve self-deploys from the inner shaft assembly.
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16. 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 stent frame to which a valve structure is attached, the delivery system including a capsule containing the prosthetic heart valve in a compressed arrangement over an inner shaft assembly in a loaded state of the system, and a recapture assembly including a recapture frame and sleeve slidably disposed over the inner shaft assembly, the recapture assembly being longitudinally spaced from the prosthetic heart valve in the loaded state;
wherein the recapture frame includes a wire frame formed of a shape memory material;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 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; distally advancing the recapture assembly relative to the prosthetic heart valve such that the recapture assembly is distal the capsule and expands to an expanded arrangement having a distally increasing diameter; distally advancing the recapture frame over the prosthetic heart valve; arranging the recapture assembly over the prosthetic heart valve to cause the distal region of the prosthetic heart valve to transition toward the collapsed arrangement within the recapture assembly; and fully proximally retracting the recapture assembly from the prosthetic heart valve such that the prosthetic heart valve self-deploys from the inner shaft.
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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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receiving a delivery system loaded with a radially expandable prosthetic heart valve having a stent frame to which a valve structure is attached, the delivery system including a capsule containing the prosthetic heart valve in a compressed arrangement over an inner shaft assembly in a loaded state of the system, and a recapture assembly including a recapture frame and sleeve slidably disposed over the inner shaft assembly, the recapture assembly being longitudinally spaced from the prosthetic heart valve in the loaded state;
wherein the recapture frame forms a support structure defining an internal surface and wherein the sleeve is attached to the internal surface;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 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; distally advancing the recapture assembly relative to the prosthetic heart valve such that the recapture assembly is distal the capsule and expands to an expanded arrangement having a distally increasing diameter; distally advancing the recapture frame over the prosthetic heart valve; arranging the recapture assembly over the prosthetic heart valve to cause the distal region of the prosthetic heart valve to transition toward the collapsed arrangement within the recapture assembly; 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.
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Specification