Implantable prosthetic valve assembly and method for making the same
First Claim
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1. A percutaneous prosthetic heart valve assembly having enhanced rigidity, comprising:
- a frame that is radially compressible to a compressed state for percutaneous delivery of the valve assembly and radially expandable to an expanded state for operation of the valve assembly, the frame comprising first and second frame portions connected end-to-end, each frame portion comprising a plurality of circumferential struts, each strut formed with multiple bends, the bends of the first frame portion having angles that are less than the angles of the bends of the second frame portion when the frame is in the expanded state; and
a valve member having a base portion attached to the second frame portion and commissure tabs attached to the first and second frame portions;
wherein the frame has a partially collapsed state in which the first frame portion is frusto-conical and the second frame portion is substantially cylindrical, and wherein the frame is substantially cylindrical in the expanded state.
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Abstract
An implantable prosthetic valve assembly having a frame comprising a first frame portion and a second frame portion connected end-to-end exhibits enhanced rigidity. Each frame portion includes a plurality of circumferential struts formed with multiple bends, with the bends of the first frame portion having angles that are less than the bends of the second frame portion. Some embodiments of the frame have a semi-collapsed state in which the first frame portion is frustoconical and the second frame portion is generally cylindrical. A valve member is attached to the first frame portion.
219 Citations
17 Claims
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1. A percutaneous prosthetic heart valve assembly having enhanced rigidity, comprising:
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a frame that is radially compressible to a compressed state for percutaneous delivery of the valve assembly and radially expandable to an expanded state for operation of the valve assembly, the frame comprising first and second frame portions connected end-to-end, each frame portion comprising a plurality of circumferential struts, each strut formed with multiple bends, the bends of the first frame portion having angles that are less than the angles of the bends of the second frame portion when the frame is in the expanded state; and a valve member having a base portion attached to the second frame portion and commissure tabs attached to the first and second frame portions; wherein the frame has a partially collapsed state in which the first frame portion is frusto-conical and the second frame portion is substantially cylindrical, and wherein the frame is substantially cylindrical in the expanded state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A prosthetic heart valve assembly comprising:
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a frame that is radially compressible to a compressed state for percutaneous delivery of the valve assembly and radially expandable to an expanded state for operation of the valve assembly, the frame comprising first and second frame portions connected end-to-end, the first frame portion comprising a circumferentially extending band of ring-shaped cells, each cell comprising a first arcuate strut member and a second arcuate strut member intersecting at an upper and a lower junction point, the second frame portion comprising a plurality of circumferential struts, each strut formed with multiple bends, wherein the frame has a partially collapsed state in which the first frame portion is frusto-conical and the second frame portion is substantially cylindrical, and wherein the frame is substantially cylindrical in the expanded state; and a valve member connected to the first frame portion, the valve member comprising a tricuspid leaflet valve. - View Dependent Claims (17)
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Specification