Retaining mechanisms for prosthetic valves
First Claim
1. A prosthetic valve delivery system having a distal end and an opposite, proximal end, wherein the distal end of the delivery system is capable of being advanced into a patient'"'"'s heart during a deliver procedure while the proximal end of the delivery system is disposed outside of the patient'"'"'s heart, comprising:
- one or more prosthetic valve delivery catheters;
one or more support stent delivery catheters at least partially positioned in an interior of the one or more prosthetic valve delivery catheters;
an expandable support stent having a plurality of retaining arms at a distal end of the support stent, the plurality of retaining arms being releasably coupled to the one or more support stent delivery catheters at the distal end of the support stent, wherein the distal end of the support stent is directed toward the distal end of the delivery system; and
an expandable prosthetic valve releasably coupled to the one or more prosthetic valve delivery catheters, the prosthetic valve being oriented when releasably coupled to the delivery system to replace an aortic valve when the distal end of the delivery system is delivered through a puncture in a left ventricle,wherein the support stent is configured such that retracting the support stent proximally relative to an elongated nose cone of the delivery system causes the support stent to expand into an expanded state.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein are representative embodiments of methods, apparatus, and systems used to deliver a prosthetic heart valve to a deficient valve. In one embodiment, for instance, a support structure and an expandable prosthetic valve are advanced through the aortic arch of a patient using a delivery system. The support structure is delivered to a position on or adjacent to the surface of the outflow side of the aortic valve (the support structure defining a support-structure interior). The expandable prosthetic valve is delivered into the aortic valve and into the support-structure interior. The expandable prosthetic heart valve is expanded while the expandable prosthetic heart valve is in the support-structure interior and while the support structure is at the position on or adjacent to the surface of the outflow side of the aortic valve, thereby causing one or more native leaflets of the aortic valve to be frictionally secured between the support structure and the expanded prosthetic heart valve.
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Citations
20 Claims
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1. A prosthetic valve delivery system having a distal end and an opposite, proximal end, wherein the distal end of the delivery system is capable of being advanced into a patient'"'"'s heart during a deliver procedure while the proximal end of the delivery system is disposed outside of the patient'"'"'s heart, comprising:
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one or more prosthetic valve delivery catheters; one or more support stent delivery catheters at least partially positioned in an interior of the one or more prosthetic valve delivery catheters; an expandable support stent having a plurality of retaining arms at a distal end of the support stent, the plurality of retaining arms being releasably coupled to the one or more support stent delivery catheters at the distal end of the support stent, wherein the distal end of the support stent is directed toward the distal end of the delivery system; and an expandable prosthetic valve releasably coupled to the one or more prosthetic valve delivery catheters, the prosthetic valve being oriented when releasably coupled to the delivery system to replace an aortic valve when the distal end of the delivery system is delivered through a puncture in a left ventricle, wherein the support stent is configured such that retracting the support stent proximally relative to an elongated nose cone of the delivery system causes the support stent to expand into an expanded state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A prosthetic valve delivery system having a distal end and an opposite, proximal end, wherein the distal end of the delivery system is capable of being advanced into a patient'"'"'s heart during a deliver procedure while the proximal end of the delivery system is disposed outside of the patient'"'"'s heart, comprising:
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one or more prosthetic valve delivery catheters; one or more support stent delivery catheters at least partially positioned in an interior of the one or more prosthetic valve delivery catheters, wherein the one or more support stent delivery catheters comprise; a stent delivery inner fork catheter; and a stent delivery outer fork catheter at least partially positioned in an interior of the stent delivery inner fork catheter; an expandable support stent having a plurality of retaining arms at a distal end of the support stent, the plurality of retaining arms being releasably coupled to the one or more support stent delivery catheters at the distal end of the support stent, wherein the distal end of the support stent is directed toward the distal end of the delivery system; and an expandable prosthetic valve releasably coupled to the one or more prosthetic valve delivery catheters, the prosthetic valve being oriented when releasably coupled to the delivery system to replace an aortic valve when the distal end of the delivery system is delivered through a puncture in a left ventricle, wherein the stent delivery inner fork catheter and the stent delivery outer fork catheter of the one or more support stent delivery catheters are configured such that distal advancement of the stent delivery inner fork catheter relative to the stent delivery outer fork catheter causes the support stent to be released from the one or more support stent delivery catheters. - View Dependent Claims (13, 14, 15, 16)
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17. A prosthetic valve delivery system having a distal end and an opposite, proximal end, wherein the distal end of the delivery system is capable of being advanced into a patient'"'"'s heart during a deliver procedure while the proximal end of the delivery system is disposed outside of the patient'"'"'s heart, comprising:
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one or more prosthetic valve delivery catheters; one or more support stent delivery catheters at least partially positioned in an interior of the one or more prosthetic valve delivery catheters, wherein the one or more support stent delivery catheters comprise; a stent delivery inner fork catheter, the stent delivery inner fork catheter having a distal end with an inner fork portion that comprises a plurality of flexible inner prongs; and a stent delivery outer fork catheter at least partially positioned in an interior of the stent delivery inner fork catheter, the stent delivery outer fork catheter having a distal end with an outer fork portion that comprises a plurality of flexible outer prongs originating outward of the flexible inner prongs; an expandable support stent having a plurality of retaining arms at a distal end of the support stent, the plurality of retaining arms being releasably coupled to corresponding ones of the outer prongs of the outer fork portion of the one or more support stent delivery catheters and corresponding ones of the inner prongs of the inner fork portion of the one or more support stent delivery catheters at the distal end of the support stent, wherein the distal end of the support stent is directed toward the distal end of the delivery system; and an expandable prosthetic valve releasably coupled to the one or more prosthetic valve delivery catheters, the prosthetic valve being oriented when releasably coupled to the delivery system to replace an aortic valve when the distal end of the delivery system is delivered through a puncture in a left ventricle. - View Dependent Claims (18, 19, 20)
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Specification