COLLAPSIBLE AND RE-EXPANDABLE PROSTHETIC HEART VALVE CUFF DESIGNS AND COMPLEMENTARY TECHNOLOGICAL APPLICATIONS
2 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic heart valve is provided with a cuff having features which promote sealing with the native tissues even where the native tissues are irregular. The cuff may include a portion adapted to bear on the LVOT when the valve is implanted in a native aortic valve. The valve may include elements for biasing the cuff outwardly with respect to the stent body when the stent body is in an expanded condition. The cuff may have portions of different thickness distributed around the circumference of the valve in a pattern matching the shape of the opening defined by the native tissue. All or part of the cuff may be movable relative to the stent during implantation.
9 Citations
21 Claims
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1. (canceled)
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2. A method of implanting a prosthetic heart valve within a native valve annulus of a patient, the method comprising:
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introducing a delivery device to the native valve annulus, the delivery device housing a prosthetic heart valve in a collapsed condition and having an outer sheath surrounding the prosthetic heart valve, the prosthetic heart valve including a stent body, at least one valve element mounted within the stent body and operative to allow flow in an antegrade direction through the stent body but to substantially block flow in a retrograde direction through the stent body, and a cuff including a pocket having an outer side and an opening, the pocket being attached to the stent body; and withdrawing the sheath to deploy the prosthetic heart valve from the delivery device, whereupon the prosthetic heart valve can move from the collapsed condition to an expanded condition and a flow of blood around the prosthetic heart valve will bias the outer side of the pocket outwardly into engagement within the native valve annulus. - View Dependent Claims (3, 4, 5, 6, 7)
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8. A method of implanting a prosthetic heart valve within a native valve annulus of a patient, the method comprising:
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introducing a delivery device to the native valve annulus, the delivery device housing a prosthetic heart valve in a collapsed condition, the prosthetic heart valve including a stent body, a valve element mounted within the stent body and operative to allow flow in an antegrade direction through the stent body but to substantially block flow in a retrograde direction through the stent body, and a cuff connected to the stent body and including at least one pocket having an outer surface; and expanding the stent body within the native valve annulus, whereby a flow of blood around the stent body will fill the pocket with blood and bias the outer surface outwardly into engagement within the native valve annulus. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of implanting a prosthetic heart valve within a native valve annulus of a patient, the method comprising:
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introducing a delivery device to the native valve annulus, the delivery device housing a prosthetic heart valve in a collapsed condition, the prosthetic heart valve including a stent body, a valve element mounted within the stent body and operative to allow flow in an antegrade direction through the stent body but to substantially block flow in a retrograde direction through the stent body, and a cuff connected to the stent body and including a pocket and an outer surface; and expanding the stent body within the native valve annulus, whereby a flow of blood around the stent body will fill the cuff with blood and bias the outer surface outwardly into engagement within the native valve annulus. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification