Granted Patent B2

US 12,721,725 · App. 17/750,826 · Granted Sep 1, 2026

Inventors: Anatoly Dvorsky (Haifa, IL); David Maimon (Atlit, IL); Dikla Kersh (Karkur, IL); Gideon Sagi (Kfar Vradim, IL)

Assignee: Edwards Lifesciences Corporation

A61F2/2418A61F2220/0041A61F2220/0091A61F2230/0054A61F2230/0067A61F2250/001

Abstract

Claims (36)

1 . An implantable prosthetic device, comprising:

a frame that is radially expandable and compressible between a radially compressed configuration and a radially expanded configuration, the frame comprising a plurality of struts, each strut of the plurality of struts extending from a first end of the frame to an axially opposed second end of the frame and comprising a first portion extending from the first end to a deflection point and a second portion extending from the deflection point to the second end,

wherein each strut of the plurality of struts is curved helically with respect to a first, longitudinal axis of the frame;

wherein the first portion of each strut of the plurality of struts is curved in a first direction with respect to a first line parallel to a second axis that is perpendicular to the first, longitudinal axis of the frame;

wherein the second portion of each strut the plurality of struts is curved in a second direction with respect to a second line parallel to the second axis;

wherein each strut of the plurality of struts comprises a plurality of segments, and wherein each segment of the plurality of segments is curved;

wherein the plurality of struts comprises a first set of struts extending in a first direction and a second set of struts extending in a second direction, and wherein each strut of the first set of struts is connected to at least one strut of the second set of struts to form a plurality of cells; and

wherein the plurality of cells comprises a first row of cells adjacent a first end of the frame, and a second row of cells disposed between the first end and a second end of the frame, the first row of cells being smaller than the second row of cells.

2 . The implantable prosthetic device of claim 1 , wherein the first portion of the strut is convex with respect to an outflow end of the frame.

3 . The implantable prosthetic device of claim 1 , wherein the second portion of the strut is concave with respect to an outflow end of the frame.

4 . The implantable prosthetic device of claim 1 , wherein the first portion of the strut is positioned adjacent an inflow end of the frame and the second portion is positioned adjacent an outflow end of the frame.

5 . The implantable prosthetic device of claim 1 , wherein the first portion of the strut is positioned adjacent an outflow end of the frame and the second portion is positioned adjacent an inflow end of the frame.

6 . The implantable prosthetic device of claim 1 , wherein the first and second portions have equal lengths.

7 . The implantable prosthetic device of claim 1 , wherein the first portion has a first length and the second portion has a second length, and wherein the first length is greater than the second length.

8 . The implantable prosthetic device of claim 1 , wherein the first portion has a first length and the second portion has a second length, and wherein the second length is greater than the first length.

9 . The implantable prosthetic device of claim 1 , further comprising a third row of cells adjacent the second end of the frame, the third row of cells being smaller than the second row of cells.

10 . The implantable prosthetic device of claim 1 , wherein when the frame is in the radially expanded configuration the frame tapers from a first diameter at a first location on the frame to a second diameter at a second location on the frame axially spaced from the first location, the first diameter being greater than the second diameter.

11 . The implantable prosthetic device of claim 1 , wherein when the frame is in the radially expanded configuration the frame has a first diameter at a first location on the frame and a second diameter at a second location on the frame axially spaced from the first location, the first and second diameters being substantially equal such that the frame has a cylindrical shape.

12 . The implantable prosthetic device of claim 1 , further comprising a valve assembly comprising a plurality of leaflets mounted inside the frame.

13 . The implantable prosthetic device of claim 1 , wherein each strut of the plurality of struts comprises a plurality of strut segments, wherein the plurality of struts segments comprises a first strut segment, a second strut segment and a third strut segment, the first strut segment having a first length and positioned adjacent to the deflection point, the second strut segment having a second length and positioned adjacent to an inflow end of the frame, and the third strut segment having a third length and positioned adjacent and an outflow end of the frame, wherein the first length is greater than the second length and the third length.

14 . An implantable prosthetic device, comprising:

a frame that is radially expandable and compressible between a radially compressed configuration and a radially expanded configuration, the frame comprising a plurality of struts, each strut of the plurality of struts comprising a first portion and a second portion separated by a deflection point,

wherein each strut of the plurality of struts is curved helically with respect to a first, longitudinal axis of the frame;

wherein the first portion of each strut of the plurality of struts is curved in a first direction with respect to a first line parallel to a second axis that is perpendicular to the first, longitudinal axis of the frame;

wherein the second portion of each strut the plurality of struts is curved in a second direction with respect to a second line parallel to the second axis;

wherein each strut of the plurality of struts comprises a plurality of segments, and wherein each segment of the plurality of segments is curved;

wherein the plurality of struts comprises a first set of struts extending in a first direction and a second set of struts extending in a second direction, and wherein each strut of the first set of struts is connected to at least one strut of the second set of struts to form a plurality of cells; wherein the plurality of cells comprises a first row of cells adjacent a first end of the frame, and a second row of cells disposed between the first end and a second end of the frame, the first row of cells being smaller than the second row of cells; and

wherein the plurality of struts comprises a plurality of inner struts and a plurality of outer struts pivotably coupled to the inner struts at a plurality of pivot joints.

15 . The implantable prosthetic device of claim 14 , wherein each pivot joint of the plurality of pivot joints comprises a fastener extending through a first aperture of a first strut of the plurality of struts and a second aperture of a second strut of the plurality of struts.

16 . The implantable prosthetic device of claim 14 , wherein each pivot joint of the plurality of pivot joints comprises a protrusion formed on a first strut of the plurality of struts and a recess formed on a second strut of the plurality of struts, wherein the protrusion and the recess form a ball-and-socket type pivot joint.

17 . An implantable prosthetic device, comprising:

a frame that is radially expandable and compressible between a radially compressed configuration and a radially expanded configuration, the frame comprising a plurality of struts, each strut of the plurality of struts comprising a first portion and a second portion and is curved helically with respect to a first, longitudinal axis of the frame,

wherein the first portion of each strut of the plurality of struts is curved in a first direction with respect to a second axis that is perpendicular to the first, longitudinal axis of the frame, and the second portion of each strut the plurality of struts is curved in a second direction with respect to the second axis;

wherein the plurality of struts comprises a first set of struts extending in a first direction and a second set of struts extending in a second direction, and wherein each strut of the first set of struts is connected to at least one strut of the second set of struts to form a plurality of cells;

wherein the plurality of cells comprises a first row of cells adjacent a first end of the frame, and a second row of cells disposed between the first end and a second end of the frame, the first row of cells being smaller than the second row of cells; and

wherein the first portion of each strut extends from a first end of the frame to a deflection point and the second portion of each strut extends from the deflection point to a second end of the frame.

Assignments (1)

Continuity (4)

References Cited (391)