Actively controllable heart valve implant and method of controlling same

Patent metadata

Field	Value
Publication number	US-10226335-B2
Application number	US-201615189786-A
Country	US
Kind code	B2
Filing date	Jun 22, 2016
Priority date	Jun 22, 2015
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

A mitral valve implant includes a force-expanding mitral valve lattice having an interior orifice and a self-expanding valve trampoline attached at the interior orifice of the force-expanding mitral valve lattice. The mitral valve lattice is self-expandable to a first configuration and force expandable from the first configuration to a second configuration. The configurations can be circular or D-shaped. The mitral valve lattice comprises jack screws adjusting configurations of the mitral valve lattice. The valve trampoline has a cylindrical central region comprising valve leaflets. An outwardly flaring implant skirt is attached to the mitral valve lattice exterior. Wall-retaining wires are attached to the mitral valve lattice, are petal-shaped, and have a pre-set, radially outward, memory shape. The wires and skirt impart a force on a respective side of the native mitral valve when the mitral valve lattice is expanded within an annulus of the native mitral valve.

First claim

What is claimed is:

1. A mitral valve implant, comprising:
an expandable mitral valve lattice having an inflow end portion and an outflow end portion;
a self-expanding valve trampoline lattice attached to the outflow end portion of the mitral valve lattice;
a self-expanding skirt lattice attached to an exterior surface of the mitral valve lattice, wherein the skirt lattice is covered by a fluid-resistant material; and
a plurality of jack screws rotatably connected to the mitral valve lattice,
wherein the mitral valve lattice is configured to self-expand from a compressed configuration to a first expanded configuration, and
wherein the jack screws are configured to expand the mitral valve lattice from the first expanded configuration to a second expanded configuration, which is radially larger than the first expanded configuration.

2. The implant according to claim 1 , wherein the first expanded configuration is one of circular and D-shaped.

3. The implant according to claim 2 , wherein the second expanded configuration corresponds in shape to the one of circular and D-shaped first expanded configuration.

4. The implant according to claim 1 , wherein the jack screws are configured to compress the mitral valve lattice from the second expanded configuration to the first expanded configuration.

5. The implant according to claim 1 , wherein the mitral valve lattice is made of a shape memory material and is shape-set to the first expanded configuration.

6. The implant according to claim 1 , wherein the valve trampoline lattice has a cylindrical central region comprising valve leaflets.

7. The implant according to claim 6 , wherein the valve trampoline lattice comprises a D-shaped portion.

8. The implant according to claim 7 , wherein:
the valve leaflets have an inflow side; and
the D-shaped portion is located on an inflow side of the valve leaflets.

9. The implant according to claim 1 , wherein the skirt lattice has an outflow end portion that extends radially outwardly relative to the mitral valve lattice and has a first outer diameter, and wherein the first outer diameter of the skirt lattice is larger than a second outer diameter of the valve trampoline lattice.

10. The implant according to claim 9 , wherein the skirt lattice has an inflow end portion comprising wall-retaining wires extending radially outwardly relative to the mitral valve lattice, wherein the wall-retaining wires are shaped to be positioned on a side of the native mitral valve.

11. The implant according to claim 10 , wherein the wall-retaining wires are in the shape of petals and have a pre-set, radially outward, memory shape to impart a force on the side of the native mitral valve when the mitral valve lattice is expanded within an annulus of the native mitral valve.

12. The implant according to claim 11 , wherein:
the outflow end portion of the skirt lattice is shaped to be positioned on a ventricular side of the native mitral valve when the mitral valve lattice is expanded within the annulus of the native mitral valve; and
the wall-retaining wires of the skirt lattice are shaped to be positioned on an atrial side of the native mitral valve when the mitral valve lattice is expanded within the annulus of the native mitral valve.

13. The implant according to claim 1 , wherein the valve trampoline lattice has an inflow end portion attached to the outflow end portion of the mitral valve lattice, and wherein the skirt lattice has an outflow end portion that has a larger diameter than diameters of the inflow end portions of the mitral valve lattice and the valve trampoline lattice.

14. The implant according to claim 1 , wherein when the mitral valve lattice is in the second expanded configuration, an outflow end portion of the valve trampoline lattice is spaced radially inwardly from the outflow end of the mitral valve lattice.

Assignees

• Edwards Lifesciences Cardiaq Llc

Inventors

• Cartledge Richard
• Deville Derek Dee
• Smith Kevin W
• Greene James L
• Jimenez Jorge

Classifications

• A61F2220/0016

  with sharp anchoring protrusions, e.g. barbs, pins, spikes · CPC title

• A61F2250/001

  for adjusting a diameter · CPC title

• A61F2230/0006

  circular · CPC title

• A61F2230/0034

  D-shaped · CPC title

• A61F2250/0048

  differing in mechanical expandability, e.g. in mechanical, self- or balloon expandability · CPC title