Delivery systems and methods of implantation for replacement prosthetic heart valves
First Claim
1. A method of delivering a replacement prosthetic valve to a previously implanted prosthetic valve comprising an inflow end and an outflow end, the method comprising:
- compressing a replacement prosthetic valve comprising an expandable stent within a first sheath of a delivery system, wherein the delivery system comprises a proximal end and a distal end;
advancing the distal end of the delivery system and compressed replacement prosthetic valve into a vessel of a patient and toward the outflow end of the previously implanted prosthetic valve until the compressed expandable stent has advanced through the previously implanted prosthetic valve and is positioned past the inflow end of the previously implanted prosthetic valve;
partially retracting a second sheath of the delivery system toward the proximal end of the delivery system until at least one petal of the delivery system extends from a first end of the second sheath, wherein the at least one petal extends radially relative to the sheath;
partially withdrawing the delivery system from the vessel of the patient until the at least one petal engages with the inflow end of the previously implanted prosthetic valve; and
retracting the first sheath of the delivery system toward the proximal end of the delivery system to expose the compressed stent and deploy the replacement prosthetic valve.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of delivering a replacement prosthetic valve to a previously implanted prosthetic valve including the steps of compressing a replacement prosthetic valve having an expandable stent within a sheath of a delivery system, wherein the delivery system comprises a proximal end, a distal end, and a centering structure positioned between the proximal and distal ends, advancing the delivery system and compressed replacement prosthetic valve into a vessel of a patient until the distal end of the delivery system is positioned adjacent to a second side of a previously implanted prosthetic valve, deploying the centering structure to radially reposition the distal end of the delivery system, further advancing the delivery system toward the previously implanted prosthetic valve, and deploying the replacement prosthetic valve
284 Citations
15 Claims
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1. A method of delivering a replacement prosthetic valve to a previously implanted prosthetic valve comprising an inflow end and an outflow end, the method comprising:
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compressing a replacement prosthetic valve comprising an expandable stent within a first sheath of a delivery system, wherein the delivery system comprises a proximal end and a distal end; advancing the distal end of the delivery system and compressed replacement prosthetic valve into a vessel of a patient and toward the outflow end of the previously implanted prosthetic valve until the compressed expandable stent has advanced through the previously implanted prosthetic valve and is positioned past the inflow end of the previously implanted prosthetic valve; partially retracting a second sheath of the delivery system toward the proximal end of the delivery system until at least one petal of the delivery system extends from a first end of the second sheath, wherein the at least one petal extends radially relative to the sheath; partially withdrawing the delivery system from the vessel of the patient until the at least one petal engages with the inflow end of the previously implanted prosthetic valve; and retracting the first sheath of the delivery system toward the proximal end of the delivery system to expose the compressed stent and deploy the replacement prosthetic valve. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of delivering a replacement prosthetic valve to a previously implanted prosthetic valve, the method comprising:
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compressing a replacement prosthetic valve comprising an expandable stent within a first sheath of a delivery system, wherein the delivery system comprises a proximal end and a distal end; advancing the delivery system and compressed replacement prosthetic valve into a vessel of a patient until the distal end of the delivery system is positioned adjacent to a second side of a previously implanted prosthetic valve; partially retracting a second sheath of the delivery system toward the proximal end of the delivery system until a distal portion of the expandable stent extends from a first end of the second sheath, wherein the extending distal portion of the delivery system extends radially relative to the second sheath; further advancing the delivery system toward the previously implanted prosthetic valve and engaging the extending distal portion of the delivery system with the second side of the previously implanted prosthetic valve; and retracting the first sheath of the delivery system toward the proximal end of the delivery system to expose the compressed stent and deploy the replacement prosthetic valve. - View Dependent Claims (9, 10, 11)
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12. A method of delivering a replacement prosthetic valve to a previously implanted prosthetic valve, the method comprising:
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compressing a replacement prosthetic valve comprising an expandable stent within a sheath of a delivery system, wherein the delivery system comprises a proximal end, a distal end, and a centering structure positioned between the proximal and distal ends, and wherein the valve is positioned distal to the centering structure; advancing the delivery system and compressed replacement prosthetic valve into a vessel of a patient until the distal end of the delivery system is positioned adjacent to a second side of a previously implanted prosthetic valve; deploying the centering structure to radially reposition the distal end of the delivery system; further advancing the delivery system toward the previously implanted prosthetic valve; and deploying the replacement prosthetic valve. - View Dependent Claims (13, 14, 15)
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Specification