Transcatheter heart prosthesis

Patent metadata

Field	Value
Publication number	US-2025114191-A1
Application number	US-202318729930-A
Country	US
Kind code	A1
Filing date	Jan 26, 2023
Priority date	Jan 27, 2022
Publication date	Apr 10, 2025
Grant date	—

Abstract

A transcatheter valve prosthesis includes a frame and a prosthetic valve coupled to the frame. In a radially compressed configuration, the frame is a single layer tube. In a radially expanded configuration, the frame comprises an outer structure and an inner structure, wherein the prosthetic valve attached to the inner structure, and wherein the outer structure surrounds the inner structure and is spaced from the inner structure by a gap.

First claim

1 . A transcatheter heart valve prosthesis comprising:
a frame having a central longitudinal axis, the frame including an inflow portion, an outflow portion, and a plurality of commissure bars extending from the outflow portion towards the inflow portion; and a prosthetic valve operatively connected to the plurality of commissure bars, wherein: in a radially compressed configuration, each of the plurality of commissure bars is disposed within a respective opening of a plurality of openings in the frame, and the inflow portion, the outflow portion, and the plurality of commissure bars are spaced a first distance from a central longitudinal axis of the frame; and in a radially expanded configuration, the inflow portion is spaced a second distance from the central longitudinal axis greater than the first distance, and the plurality of commissure bars are spaced a third distance from the central longitudinal axis of the frame less than the second distance.

2 . The transcatheter heart valve prosthesis of claim 1 , wherein the plurality of commissure bars extends substantially parallel to the central longitudinal axis.

3 . The transcatheter heart valve prosthesis of claim 1 , wherein each commissure bar includes a distal portion and a proximal portion, wherein the prosthetic valve is operably coupled to the distal portion, and wherein the proximal portion in the radially compressed configuration includes a first strut and a second strut separated by a slot.

4 . The transcatheter heart valve prosthesis of claim 3 , wherein in the radially expanded configuration, the first strut and the second strut extend circumferentially in opposite directions from the distal portion of the commissure bar.

5 . The transcatheter heart valve prosthesis of claim 1 , wherein in the radially expanded configuration, the outflow portion is spaced the third distance from the central longitudinal axis.

6 . The transcatheter heart valve prosthesis of claim 1 , wherein the plurality of commissure bars comprises three commissure bars.

7 . The transcatheter heart valve prosthesis of claim 1 , wherein the prosthetic valve comprises a plurality of leaflets.

8 . The transcatheter heart valve prosthesis of claim 5 , wherein respective commissures of the plurality of leaflets are coupled to respective commissure bars of the frame.

9 . The transcatheter heart valve prosthesis of claim 5 , wherein the third distance is greater than the first distance.

10 . The transcatheter heart valve prosthesis of claim 5 , further comprising a transition portion coupling the inflow portion to the outflow portion, wherein in the radially compressed configuration the transition portion is spaced the first distance from the central longitudinal axis, and in the radially expanded configuration, the transition portion tapers from the second distance from the central longitudinal axis to the third distance from the longitudinal axis.

11 . The transcatheter heart valve prosthesis of claim 1 , further comprising connectors coupling the commissure bars to the inflow portion.

12 . The transcatheter heart valve prosthesis of claim 11 , wherein the connectors include an undulation region.

13 . The transcatheter heart valve prosthesis of claim 1 , wherein each commissure bar includes holes and/or longitudinal slots.

14 . The transcatheter heart valve prosthesis of claim 1 , further comprising cleats extending radially outwardly and proximally from the inflow portion.

15 . A transcatheter heart valve prosthesis comprising:
a frame having a central longitudinal axis, the frame a plurality of inner axial struts, a plurality of outer axial struts, and a plurality of connectors coupling the inner axial struts to the outer axial struts; and a prosthetic valve operatively connected at least some of the inner axial struts; wherein: in a radially compressed configuration, the plurality of inner axial struts, the plurality of outer axial struts, and the connectors are spaced a first distance from the central longitudinal axis, and in a radially expanded configuration, the plurality of outer axial struts are spaced a second distance from the central longitudinal axis greater than the first distance, and the plurality of inner axial struts are spaced a third distance from the central longitudinal axis smaller than the second distance.

16 . The transcatheter heart valve prosthesis of claim 15 , wherein the frame further comprises an inflow portion coupled to the plurality outer axial struts, wherein in the radially compressed configuration, the inflow portion is spaced the first distance from the central longitudinal axis, and wherein in the radially expanded configuration, the inflow portion is spaced the second distance from the central longitudinal axis.

17 . The transcatheter heart valve prosthesis of claim 15 , wherein the frame further comprises an outflow portion coupled to the plurality inner axial struts, wherein in the radially compressed configuration, the outflow portion is spaced the first distance from the central longitudinal axis, and wherein in the radially expanded configuration, the outflow portion is spaced the third distance from the central longitudinal axis.

18 . The transcatheter heart valve prosthesis of claim 16 , wherein the inflow portion comprises a plurality of generally diamond shaped cells.

19 . A transcatheter heart valve prosthesis comprising:
a frame including a central longitudinal axis; and a prosthetic valve coupled to the frame, wherein: in a radially expanded configuration, the frame comprises an outer structure and an inner structure, wherein the prosthetic valve is attached to the inner structure, and wherein the outer structure surrounds the inner structure and is spaced from the inner structure by a gap, and in a radially compressed configuration, the outer structure and the inner structure are spaced about the same distance from the central longitudinal axis such that the gap disappears.

20 . The transcatheter heart valve prosthesis of claim 19 , wherein in the radially compressed configuration, the frame is a single layer tube.

Assignees

• Medtronic Inc

Inventors

• Margolis Daniel
• Goshgarian Justin
• Goreham-Voss Curtis

Classifications

• A61F2250/0037

  differing in height or in length · CPC title

• A61F2/2418 Primary

  Scaffolds therefor, e.g. support stents · CPC title