Stents, Valved-Stents, and Methods and Systems for Delivery Thereof
6 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of the present disclosure are directed to stents, valved-stents, (e.g., single-stent-valves and double stent/valved-stent systems) and associated methods and systems for their delivery via minimally-invasive surgery. The stent component comprises a first stent section (102) a second stent section (104) a third stent section (106) and a fourth stent section (108).
-
Citations
88 Claims
-
1-58. -58. (canceled)
-
59. An aortic replacement valve for use within a human body comprising:
-
a stent component comprising a first end and a second end, wherein the first end is the proximal end of the replacement valve for positioning within or adjacent the ventricle of the heart of the human body and the second end is the distal end for positioning within or adjacent the aorta of the human body, the stent component further comprising a plurality of sections including; a first stent section defining an at least partly conical body, wherein the first stent section defines the proximal end of the stent component; a second stent section in communication with the first stent section and defining an at least partly conical body, wherein the conical body of the first stent section slopes outwardly in the direction of the first end, and wherein the conical body of the second stent section slopes outwardly in the direction of the second end; a distal stent section defining an at least partly conical body, wherein the distal stent section defines the second end and includes a plurality of stabilization arches projecting distally to stabilize the aortic replacement valve within the aorta. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
-
-
74. A method for replacing an aortic valve within a human body, the method comprising:
-
covering a stent-valve with a sheath in order to maintain the stent-valve in a collapsed configuration; inserting the stent-valve still in the collapsed configuration into the human body via direct access through a wall of the heart; partially expanding the stent-valve by sliding the sheath towards the left ventricle of the heart, wherein said sliding of the sheath towards the left ventricle causes expansion of a distal end of the stent-valve while the proximal end of the stent-valve remains constrained by the sheath; and further sliding the sheath towards the left ventricle of the heart in order to substantially release the entire stent-valve such that the stent-valve is allowed to expand to an expanded configuration. - View Dependent Claims (75)
-
-
76. A method for cardiac valve replacement comprising:
-
releasing a distal end of a stent-valve from a sheath, wherein the distal end comprising a radiopaque marker; rotating the stent-valve, if necessary, to orient the stent-valve appropriately with respect to the coronary arteries; releasing arches of the stent-valve from the sheath, in order to cause the arches to contact the aorta; releasing a first conical crown of the stent-valve from the sheath, in order to cause the first conical crown to contact native valve leaflets; and releasing a second crown of the stent-valve from the sheath, in order to cause the second crown to contact an annulus/inflow tract, wherein the second crown comprises the proximal section of the stent-valve and said releasing of the second crown comprises fully releasing the stent-valve from the sheath.
-
-
77. A method for cardiac valve replacement comprising:
-
releasing a distal end of a valved-stent from a sheath, wherein the distal end comprises a radiopaque marker and a plurality of arches; rotating the valved-stent, if necessary, to orient the stent-valve appropriately with respect to the coronary arteries; releasing the arches of the valved-stent from the sheath, in order to cause the arches to contact an area above a native valve; releasing a first conical crown portion of the valved-stent from the sheath, in order to cause the first conical crown to contact the native valve leaflets; and releasing a second crown portion of the valved-stent from the sheath, in order to cause the second crown to contact an annulus/inflow tract of the native valve, wherein the second crown is the proximal section of the stent-valve and said releasing the second crown comprises fully releasing the stent-valve from the sheath.
-
-
78. A method for replacing a worn or diseased valve comprising:
-
implanting a replacement valve by direct access through a wall of the heart, wherein the replacement valve comprises; a valve component; and a stent component to which the valve component is affixed thereto, the stent component comprising; a longitudinal axis; a first section including a substantially conical shape having a narrow end, a broad end and a predetermined first height; and a second section including a substantially conical shape having a narrow end, a broad end and a predetermined second height; wherein; a center of each of the first section and the second section are arranged to align substantially with the longitudinal axis; the narrow ends of the first section and second section are arranged to meet forming an annular groove to receive the annulus of worn or diseased cardiac valve at an implantation site of the heart, the first height of the first section is greater than the second height of the second section; and positioning the replacement valve so that the annular groove receives the annulus of the worn or diseased cardiac valve.
-
-
79. A method of implanting a replacement valve into a heart of a mammal comprising:
-
delivering a replacement valve to an implantation site of the heart of the mammal, wherein; the implantation site comprises a release location and a final location; and the release location is spaced apart from the final location in a blood upflow direction; and releasing the replacement valve at the release location;
wherein;the replacement valve slides into the final location upon at least one beat of the heart subsequent to the replacement valve being released at the release location.
-
-
80. A method of implanting a replacement valve into a heart of a mammal comprising:
-
delivering a replacement valve to an implantation site of the heart of the mammal, wherein; the implantation site comprises a release location and a final location; and the release location is spaced apart from the final location; and releasing the replacement valve at the release location;
wherein;the replacement valve slides into the final location upon at least one beat of the heart subsequent to the replacement valve being released at the release location. - View Dependent Claims (81)
-
-
82. A method implanting a replacement valve into a heart of a mammal comprising:
-
delivering a replacement valve to an implantation site of the heart of the mammal, wherein; the implantation site comprises a release location and a final location; and the release location is spaced apart from the final location at a predetermined distance in a blood upflow direction; and releasing the replacement valve at the release location;
wherein;the replacement valve slides into the final location upon at least one beat of the heart subsequent to the replacement valve being released at the release location. - View Dependent Claims (83, 84, 85, 86, 87, 88)
-
Specification