Methods and systems for cardiac valve delivery
First Claim
1. A balloon expandable, stented valve replacement scapus delivery system comprising:
- an elongated, substantially rigid scapus;
a balloon delivery member positioned about the distal end of the scapus;
a valve replacement detachably positioned about the balloon delivery member and capable of being collapsed so as to temporarily reduce the valve diameter by up to 90%; and
a collapsible stent positioned about the 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.
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Accused Products
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.
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Citations
52 Claims
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1. A balloon expandable, stented valve replacement scapus delivery system comprising:
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an elongated, substantially rigid scapus;
a balloon delivery member positioned about the distal end of the scapus;
a valve replacement detachably positioned about the balloon delivery member and capable of being collapsed so as to temporarily reduce the valve diameter by up to 90%; and
a collapsible stent positioned about the 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A balloon expandable, stented valve replacement scapus delivery system comprising:
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an elongated, substantially rigid scapus;
a valve replacement detachably positioned about the balloon delivery member and capable of being collapsed so as to temporarily reduce the valve diameter by up to 90%; and
a collapsible stent positioned about the 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. a first inflatable balloon delivery member positioned about the scapus at the distal end of the stented valve replacement, the first inflatable balloon delivery member, when inflated, having a larger diameter than the stented valve in order to prevent migration of the stented valve; and
a second inflatable balloon delivery member positioned about the scapus at the proximal end of the stented valve replacement, the second inflatable balloon delivery member, when inflated, having a larger diameter than the stented valve replacement in order to further prevent migration of the stented valve. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A stented valve replacement delivery member comprising:
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a balloon delivery member comprising a middle section and a proximal and distal end, wherein the cross-sectional areas of the distal and proximal ends of the inflated balloon are larger than the cross-sectional areas of the middle section of the inflated balloon; and
a valve replacement detachably positioned about the middle of the balloon delivery member and capable of being collapsed so as to temporarily reduce the valve diameter by up to 90%; and
a collapsible stent positioned about the 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. - View Dependent Claims (20)
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21. An intra-vascular embolic protection system consisting of a distal and proximal end, so as to operate, when expanded, as a temporary valve and prevent flush back of blood, embolic material and other debris comprising:
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a compressible frame located at the proximal end of the intra-vascular embolic protection system that makes a seal with the surrounding vasculature;
a first compressible porous bag, having an open filter mouth at its proximal end and connected to the compressible frame, and whose distal end is open; and
a second compressible porous bag enveloping the first compressible porous bag, having an open filter mouth at its proximal end and connected to the compressible frame, and whose distal end is open. - View Dependent Claims (22, 23, 24)
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25. A foldable, stented valve replacement scapus delivery system comprising:
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an elongated, substantially rigid scapus;
a valve replacement detachably positioned about the scapus and capable of being folded so as to temporarily reduce the valve diameter by up to 50%; and
a foldable stent positioned about the exterior of the valve, the foldable stent having a circular inflow rim and a circular outflow rim connected by a plurality of longitudinal support posts, the foldable stent being constructed of a memory shaped alloy. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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32. A foldable, stented valve replacement scapus delivery system comprising:
- an elongated, substantially rigid scapus;
a valve replacement detachably positioned about the scapus and capable of being folded so as to temporarily reduce the valve diameter by up to 50%; and
a foldable stent positioned about the exterior of the heart valve, the foldable stent having a circular inflow rim and a circular outflow rim connected by a plurality of longitudinal support posts, the foldable stent being constructed of a memory shaped alloy;
a first inflatable balloon delivery member positioned about the scapus at the distal end of the foldable, stented valve replacement, the first inflatable balloon delivery member, when inflated, having a larger diameter than the foldable, stented valve in order to prevent migration of the foldable stented valve; and
a second inflatable balloon delivery member positioned about the scapus at the proximal end of the foldable, stented valve replacement, the second inflatable balloon delivery member, when inflated, having a larger diameter than the foldable, stented valve replacement in order to further prevent migration of the foldable stented valve. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
- an elongated, substantially rigid scapus;
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42. A foldable, stented valve replacement scapus delivery system comprising:
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an elongated, substantially rigid scapus;
a valve replacement detachably positioned about the scapus and capable of being folded so as to temporarily reduce the valve diameter by up to 50%; and
a foldable stent positioned about the exterior of the heart valve, the foldable stent having a circular inflow rim and a circular outflow rim connected by a plurality of longitudinal support posts, the foldable stent being constructed of a memory shaped alloy capable of changing from a malleable martensite phase to a memorized austentite phase at an Af temperature between about 0°
C. and about 30°
C. such that the stent is capable of being folded in the martensite phase so as to temporarily reduce its diameter by up to 50%; and
a compressible distal embolic protection filter detachably positioned about the scapus, the distal embolic protection filter being formed of one or more truncated porous bags, having an open filter mouth located adjacent the distal end of foldable, stented valve so as to operate, when expanded, as a temporary valve and prevent flush back of blood, embolic material and other debris. - View Dependent Claims (43, 44)
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45. A foldable, stented valve replacement scapus delivery system comprising:
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an elongated substantially rigid scapus;
a valve replacement detachably positioned about the scapus and capable of being folded so as to temporarily reduce its diameter by up to 50%; and
a foldable stent positioned about the exterior of the heart valve, the foldable stent having a circular inflow rim and a circular outflow rim connected by a plurality of longitudinal commissural support posts, the foldable stent being constructed of a memory shaped alloy capable of changing from a malleable martensite phase to a memorized austentite phase at an Af temperature between about 0°
C. and about 30°
C. such that the stent is capable of being folded in the martensite phase so as to temporarily reduce its diameter by up to 50%, wherein the foldable stent inflow rims are adapted to align with the inflow rim of a previously implanted heart valve prosthesis. - View Dependent Claims (46, 47, 48)
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49. A foldable, stented valve replacement scapus delivery system comprising:
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an elongated, substantially rigid scapus;
a valve replacement detachably positioned about the scapus and capable of being folded so as to temporarily reduce the valve diameter by up to 50%; and
a foldable stent positioned about the exterior of the heart valve, the foldable stent having a circular inflow rim and a circular outflow rim connected by a plurality of longitudinal commissural support posts, the foldable stent being constructed of a memory shaped alloy capable of changing from a malleable martensite phase to a memorized austentite phase at an Af temperature between about 0°
C. and about 30°
C. such that the stent is capable of being folded in the martensite phase so as to temporarily reduce its diameter by up to 50%, wherein the foldable stent longitudinal commissural support posts are adapted to align with the commissural posts of a previously implanted heart valve prosthesis. - View Dependent Claims (50, 51, 52)
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Specification