Compact prosthetic heart valve device

Patent metadata

Field	Value
Publication number	US-12263084-B2
Application number	US-202217716699-A
Country	US
Kind code	B2
Filing date	Apr 8, 2022
Priority date	Apr 21, 2020
Publication date	Apr 1, 2025
Grant date	Apr 1, 2025

Abstract

The devices and methods of this disclosure relate to a heart valve prosthesis that is configured to be implanted within a native heart valve having a smaller perimeter annuli with a generally elliptical shape.

First claim

What is claimed is:

1. A heart valve prosthesis having a radially compressed state for delivery to a deployment site and a radially expanded, deployed state for deployment at the deployment site, comprising:
a valve support having a first segment and a second segment,
the first segment configured to support a prosthetic valve component therein and defining a first end of the valve support having a first outer diameter, and
the second segment defining a second end of the valve support having a second outer diameter that is greater than the first outer diameter; and

an anchor element that surrounds the valve support, the anchor element having a plurality of connectors that are angled inward toward the valve support and are attached to the valve support, wherein the anchor element is attached to the valve support in both the radially compressed state prior to delivery to the deployment site and the radially expanded, deployed state,
wherein the second end of the valve support having the second diameter is disposed radially within the anchor element,
wherein the first segment has a first end that defines the first end of the valve support and a second end that is adjacent a first end of the second segment, and
wherein the second segment is flared outwardly from the first end to a second end thereof, with the first end of the second segment having the first outer diameter such that the first segment is substantially cylindrical and the second end of the second segment, which defines the second end of the valve support, having the second outer diameter.

2. The heart valve prosthesis of claim 1 , wherein the anchor element includes a tissue fixation ring configured to engage heart tissue at or below a native annulus of the native heart valve.

3. The heart valve prosthesis of claim 2 , wherein the tissue fixation ring is at least partially deformable into a non-circular shape to adapt to a shape of the implantation site in the radially expanded, deployed state.

4. The heart valve prosthesis of claim 2 , wherein the plurality of connectors are angled inward from the tissue fixation ring.

5. The heart valve prosthesis of claim 1 , further comprising a prosthetic valve component disposed within the first segment of the valve support such that valve leaflets of the prosthetic valve component open into the second segment of the valve support during diastole.

6. The heart valve prosthesis of claim 1 , wherein the valve support and the anchor element comprise a frame of the heart valve prosthesis.

7. A heart valve prosthesis of claim 1 , wherein the heart valve prosthesis is configured for implantation within a native heart valve positioned between an atrium and a ventricle.

8. The heart valve prosthesis of claim 7 , wherein the anchor element further includes a tissue fixation ring coupled to the connectors, the connectors extend inward from the tissue fixation ring, wherein the tissue fixation ring has a cone height measured between a lower end of the tissue fixation ring and an end of the connectors opposite the fixation ring.

9. The heart valve prosthesis of claim 1 , wherein an end of the anchor element is attached to the second end of the valve support.

10. The heart valve prosthesis of claim 9 , wherein the second end of the valve support is a downstream end of the valve support, and wherein the end of the anchor element attached to the downstream end of the valve support is a downstream end of the anchor element.

11. The heart valve prosthesis of claim 1 , wherein:
the first segment of the valve support is an upstream segment of the valve support;
the second segment of the valve support is a downstream segment of the valve support;
the first end of the valve support is an inflow end of the valve support; and
the second end of the valve support is an outflow end of the valve support.

12. A heart valve prosthesis having a radially compressed state for delivery to a deployment site and a radially expanded, deployed state for deployment at the deployment site, comprising:
a valve support having an upstream segment and a downstream segment relative to blood flow through a native heart valve of a human heart,
the upstream segment configured to support a prosthetic valve component therein and defining an inflow end of the valve support-having a first outer diameter, and
the downstream segment defining an outflow end of the valve support having a second outer diameter that is greater than the first outer diameter; and

an anchor element that surrounds the valve support, the anchor element having a tissue fixation ring and a plurality of connectors that are angled inward from the tissue fixation ring toward the valve support and are attached to the valve support, wherein the anchor element is attached to the valve support in both the radially compressed state prior to delivery to the deployment site and the radially expanded, deployed state,
wherein the outflow end of the valve support having the second diameter is disposed radially within the anchor element,
wherein the heart valve prosthesis is configured for implantation within a native heart valve positioned between an atrium and a ventricle,
the tissue fixation ring has a cone height measured between a lower end of the tissue fixation ring and an outflow end of the connectors,
wherein the valve support and the anchor element together form a frame, wherein the cone height is shorter than a height of a remainder of the frame such that the remainder of the frame is configured to sit at or near a valve plane of an annulus of the native heart valve, thereby the entirety of the heart valve prosthesis in the radially expanded, deployed state is configured to sit upwardly toward the atrium to reduce or prevent obstruction of the ventricle.

13. A heart valve prosthesis having a radially compressed state for delivery to a deployment site and a radially expanded, deployed state for deployment at the deployment site, comprising:
a valve support having an upstream segment and a downstream segment relative to blood flow through a native heart valve of a human heart,
the upstream segment configured to support a prosthetic valve component therein and defining an inflow end of the valve support having a first outer diameter, and
the downstream segment defining an outflow end of the valve support having a second outer diameter that is greater than the first outer diameter; and

an anchor element that surrounds the valve support, the anchor element having a plurality of connectors that are angled inward toward the valve support and are attached to the valve support, wherein the anchor element is attached to the valve support in both the radially compressed state prior to delivery to the deployment site and the radially expanded, deployed state,
wherein the tissue fixation ring has a cone height measured between a lower end of the tissue fixation ring and an outflow end of the connectors,
wherein an overall height of the frame is 16.2 mm+/−0.5 mm and the cone height of the frame is 5.4 mm+/−0.5 mm.

Assignees

• Medtronic Inc

Inventors

• Mcveigh Cahal
• Dueri Jean-Pierre
• Darekar Yogesh A
• Nair Priya
• Rinne Finn O
• Hallak George N
• Mcintire Brenda L
• Howard Elliot J

Classifications

• A61F2230/0017

  Angular shapes · CPC title

• A61F2230/0008

  elliptical or oval · CPC title

• A61F2220/0008

  Fixation appliances for connecting prostheses to the body · CPC title

• A61F2210/0014

  using shape memory or superelastic materials, e.g. nitinol · CPC title

• A61F2/2409

  Support rings therefor, e.g. for connecting valves to tissue (annuloplasty rings A61F2/2442) · CPC title