Collapsible-Expandable Prosthetic Heart Valves With Structures for Clamping Native Tissue
AssigneeSt. Jude Medical, Inc.
InventorPeter N. Braido
Life of this patent
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Abstract
A prosthetic heart valve is designed to be circumferentially collapsible for less invasive delivery into the patient. At the implant site the valve re-expands to a larger circumferential size, i.e., the size that it has for operation as a replacement for one of the patient's native heart valves. The valve includes structures that, at the implant site, extend radially outwardly to engage tissue structures above and below the native heart valve annulus. These radially outwardly extending structures clamp the native tissue between them and thereby help to anchor the prosthetic valve at the desired location in the patient.
Claims24
A prosthetic heart valve, comprising:
- a stent extending in a longitudinal direction between an inflow end and an outflow end, the stent having an expanded condition and a collapsed condition, the stent including a plurality of struts defining a plurality of open areas of the stent;
- a plurality of commissure members at spaced positions around a circumference of the stent, the stent including open areas between adjacent ones of the commissure members that are larger than the open areas in other portions of the stent;
- a plurality of valve leaflets supported by the stent;
- and
- a cuff connected to the stent adjacent the inflow end.
A prosthetic heart valve, comprising:
- a stent extending in a longitudinal direction between an inflow end and an outflow end, the stent having an expanded condition and a collapsed condition, the stent including a plurality of struts that, in the expanded condition, define a plurality of open areas of the stent;
- a plurality of commissure members at spaced positions around a circumference of the stent, each of the commissure members being spaced a first distance from the inflow end of the stent in the expanded condition;
- the stent including enlarged open areas spaced around the circumference of the stent at the first distance from the inflow end of the stent, the enlarged open areas in the expanded condition being larger than the open areas in other portions of the stent;
- a plurality of valve leaflets supported by the stent;
- and
- a cuff connected to the stent adjacent the inflow end.
Dependencies are inferred from the claim text.