Methods and systems for cardiac valve delivery
First Claim
Patent Images
1. A delivery system comprising:
- an elongated, rigid, rod-shaped support structure;
a balloon delivery member coupled to the support structure at a distal portion of the support structure;
a valve replacement detachably positioned about the balloon delivery member and structured to be collapsed to temporarily reduce a valve diameter, said valve replacement comprising a pliant prosthetic valve having an inlet end, an outlet end, a plurality of leaflet portions and a plurality of commissural tabs positioned at the outlet end and integrally formed with said leaflet portions; and
a collapsible stent positioned about an exterior of the valve, the collapsible stent having a circular inflow rim and a circular outflow rim connected by a plurality of longitudinal support posts, said commissural tabs operably coupled to said longitudinal support posts,wherein said rigid support structure is configured to transmit longitudinal and rotational motion along its length without twisting or bending along its length,wherein the balloon delivery member comprises a perfusion tube connecting a distal end and a proximal end of the balloon delivery member and structured to allow blood flow through the balloon delivery member, andwherein the rigid support structure terminates between a proximal end of a balloon of the balloon delivery member and a distal end of the balloon of the balloon delivery member.
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Abstract
The present invention provides systems and methods for the repair, removal, and/or replacement of heart valves. The methods comprise introducing a delivery system into the heart, wherein a prosthesis is disposed on the delivery member attached to the delivery system, advancing the prosthesis to the target site, and disengaging the prosthesis from the delivery member at the target site for implantation. The present invention also provides implant systems for delivering a prosthesis to a target site in or near the heart. In one embodiment of the present invention, the implant system comprises a delivery system, an access system, and a prosthesis.
84 Citations
26 Claims
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1. A delivery system comprising:
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an elongated, rigid, rod-shaped support structure; a balloon delivery member coupled to the support structure at a distal portion of the support structure; a valve replacement detachably positioned about the balloon delivery member and structured to be collapsed to temporarily reduce a valve diameter, said valve replacement comprising a pliant prosthetic valve having an inlet end, an outlet end, a plurality of leaflet portions and a plurality of commissural tabs positioned at the outlet end and integrally formed with said leaflet portions; and a collapsible stent positioned about an exterior of the valve, the collapsible stent having a circular inflow rim and a circular outflow rim connected by a plurality of longitudinal support posts, said commissural tabs operably coupled to said longitudinal support posts, wherein said rigid support structure is configured to transmit longitudinal and rotational motion along its length without twisting or bending along its length, wherein the balloon delivery member comprises a perfusion tube connecting a distal end and a proximal end of the balloon delivery member and structured to allow blood flow through the balloon delivery member, and wherein the rigid support structure terminates between a proximal end of a balloon of the balloon delivery member and a distal end of the balloon of the balloon delivery member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A delivery system comprising:
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an elongated, rigid, rod-shaped support structure having a proximal end and a distal end; a balloon delivery member positioned about the support structure at a distal portion of the support structure; a valve replacement detachably positioned about the balloon delivery member and structured to be collapsed to temporarily reduce a valve diameter; and a collapsible stent positioned about an exterior of the valve, the collapsible stent having a circular inflow rim and a circular outflow rim connected by a plurality of longitudinal support posts, wherein the proximal and distal ends of the support structure maintain longitudinal and rotational position and orientation with respect to each other, wherein the balloon delivery member comprises a perfusion tube connecting a distal end and a proximal end of the balloon delivery member and structured to allow blood flow through the balloon delivery member, and wherein the support structure terminates between a proximal end of a balloon of the balloon delivery member and a distal end of the balloon of the balloon delivery member. - View Dependent Claims (24)
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25. A scapus delivery system comprising:
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an elongated, rigid scapus; a balloon delivery member positioned about the scapus; a heart valve replacement detachably positioned about the balloon delivery member and structured to be collapsed to temporarily reduce a valve diameter; and a collapsible stent positioned about an exterior of the valve, the collapsible stent having a circular inflow nm and a circular outflow rim connected by a plurality of longitudinal support posts, wherein said rigid scapus is structured to precisely longitudinally and rotationally position said valve replacement in an aorta transapically, wherein the scapus is configured to resist bending and torsion, wherein the balloon delivery member comprises a perfusion tube connecting a distal end and a proximal end of the balloon delivery member and structured to allow blood flow through the balloon delivery member, and wherein the scapus terminates between a proximal end of a balloon of the balloon delivery member and a distal end of the balloon of the balloon delivery member.
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26. The delivery system of dam 25, wherein the scapus provides rigid support between a proximal portion of the scapus and a distal portion of the scapus located in the heart during a beating heart procedure.
Specification