Abstract:
A stented valve including a stent structure including a generally tubular body portion that has a first end and a second end, wherein an area adjacent the first end has a first stiffness, an area adjacent the second end has a second stiffness, and a central region between the areas at the first and second ends has a third stiffness that is less than the stiffness adjacent the first and second ends, wherein the stent structure can be reconfigured in its central area to match a curved patient anatomical region. The stented valve further includes a valve structure attached within the generally tubular portion.
Abstract:
A prosthetic valve (40) including a body (42), a first leaflet (44), and a second leaflet (46). The first leaflet extends across and is coupled to the body. The first leaflet is cut from a first porcine aortic valve and defines a first inner surface (94). The second leaflet extends across and is coupled to the body opposite the first leaflet. The second leaflet is cut from a second porcine aortic valve and defines a second inner surface (114).
Abstract:
A surgical sutureless valve (40) that is attached to a stent frame (50) for delivery to a location in a patient using percutaneous implantation devices and methods.
Abstract:
A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods.
Abstract:
A stent frame (10) including an annular portion (12) having first and second ends, a central longitudinal axis, and a wire portion with at least two extending posts (18) the wire portion having a generally sinusoidal series of peaks and valleys between each of the at least two extending posts; an atrial portion (14) extending from the first end of the annular portion, wherein the atrial portion includes a plurality of flares (20) that extend radially outward relative to the longitudinal axis of the annular portion; and a ventricular portion (16) extending from the second end of the annular portion, wherein the ventricular portion includes at least one flare (24) that extends radially outward relative to the longitudinal axis of the annular portion.
Abstract:
A supported bioprosthetic heart valve is provided. The valve includes a stent (16) and a biological valve member (18). The stent has an annular frame defined by a support rail. The support rail (36) is formed to define a triad of axially-projecting circumferentially-spaced commissure posts (38, 40, 42), each post having an inverted U-shaped configuration and a pair of legs. Each of the pair of legs has an upper end and a lower end. The lower end of each leg merges smoothly with the lower end of a leg of an adjacent commissure post. A sleeve (48) having an inflow end (50) and an outflow end is fitted around the annular frame. The biological valve member is defined by a tubular wall (20) and three leaflets, the three leaflets being attached to the tubular wall and axially converging along three commissures. The biological valve member has a shape which fits the contour of the support rail and is disposed under the support rail. The biological valve member is sutured to the support rail and the outflow end of the sleeve. The bioprosthetic valve member also includes a suturing cuff (46) which is not rigidly attached to the support rail allowing the valve to expand and contract in the lateral direction. The suturing cuff is formed by wrapping the inflow end of the sleeve around a ring-shaped cushion and suturing the sleeve to itself encapsulating thus the ring-shaped cushion. An inflow support ring (47) may also be provided within the suturing cuff for added lateral support.
Abstract:
A stented valve including a stent structure (10) including a generally tubular body portion having a first end, a second end, an interior area, a longitudinal axis, and a plurality of vertical wires (12) extending generally parallel to the longitudinal axis around a periphery of the body portion, wherein the plurality of vertical wires includes multiple commissure wires (16) and at least one structural wire positioned between adjacent commissure wires, and a plurality of V-shaped wire structures (18,20,22) having a first end, a second end, and a peak between the first and second ends, wherein a first end of each V-shaped structure extends from a first vertical wire and a second end of each V-shaped structure extends from a second vertical wire that is adjacent to the first vertical wire, wherein each V-shaped structure is oriented so that its peak is facing in the same direction relative to the first and second ends of the body portion, and a valve structure including a plurality of leaflets attached to the stent structure within the tubular body portion.
Abstract:
A stented valve including a stent structure including a generally tubular body portion that has a first end and a second end, wherein an area adjacent the first end has a first stiffness, an area adjacent the second end has a second stiffness, and a central region between the areas at the first and second ends has a third stiffness that is less than the stiffness adjacent the first and second ends, wherein the stent structure can be reconfigured in its central area to match a curved patient anatomical region. The stented valve further includes a valve structure attached within the generally tubular portion.