Modular valve prosthesis, delivery system, and method of delivering and deploying a modular valve prosthesis

Patent metadata

Field	Value
Publication number	US-11786371-B2
Application number	US-202016783944-A
Country	US
Kind code	B2
Filing date	Feb 6, 2020
Priority date	Jun 20, 2016
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A modular valve prosthesis includes an inflow stent, a valve component including a valve stent and a prosthetic valve, and an outflow stent. In a radially compressed delivery configuration, an inflow end of the valve stent is separated from an outflow end of the inflow stent and an outflow end of the valve stent is separated from an inflow end of the outflow stent. In a radially expanded deployed configuration, the inflow end of the valve stent is in contact with the outflow end of the inflow stent and the outflow end of the valve stent is in contact with the inflow end of the outflow stent. A delivery system includes a capsule including first, second and third sections and flexible first and second bands between respective sections. The modules of the modular valve prosthesis are aligned with the sections and gaps between the modules are aligned with the bands.

First claim

What is claimed is:

1. A modular valve prosthesis comprising:
an inflow stent having an inflow end and an outflow end;
a valve component including a valve stent and a prosthetic valve coupled to the valve stent such that the prosthetic valve is disposed in an interior lumen of the valve stent, the valve stent having an inflow end and an outflow end, wherein the inflow end of the valve stent faces the outflow end of the inflow stent;
an outflow stent having an inflow end and an outflow end, wherein the inflow end of the outflow stent faces the outflow end of the valve stent; and
a plurality of elongated members extending longitudinally through the inflow stent, the valve stent, and the outflow stent in a delivery configuration,
wherein in the delivery configuration, the inflow end of the valve stent is not in contact with the outflow end of the inflow stent and the outflow end of the valve stent is not in contact with the inflow end of the outflow stent,
wherein in a radially expanded deployed configuration, the inflow end of the valve stent is in contact with the outflow end of the inflow stent and the outflow end of the valve stent is in contact with the inflow end of the outflow stent, and
wherein the plurality of elongated members are configured to be maintained taut during deployment of the modular valve prosthesis as the valve stent is brought into contact with the inflow stent and the outflow stent is brought into contact with the valve stent.

2. The modular valve prosthesis of claim 1 , wherein the plurality of elongated members are sutures.

3. The modular valve prosthesis of claim 1 , wherein the inflow end of the valve stent includes a flange that contacts a corresponding flange of the inflow stent in the radially expanded deployed configuration.

4. The modular valve prosthesis of claim 3 , wherein the outflow end of the valve stent includes a flange that contacts a corresponding flange of the outflow stent in the radially expanded deployed configuration.

5. The modular valve prosthesis of claim 4 , wherein the flanges comprise a first material selected from the group consisting of silicone, fabric, polyester, rubber based materials, tissue/pericardium, and a foam/open cell structure, and wherein the valve stent, the inflow stent, and the outflow stent comprise a second material different than the first material.

6. The modular valve prosthesis of claim 1 , further comprising a locking mechanism disposed between the inflow stent and the valve stent such that when the outflow end of the inflow stent is in contact with the inflow end of the valve stent in the radially expanded deployed configuration, the locking mechanism locks the inflow stent and the valve stent together.

7. A modular valve prosthesis comprising:
an inflow stent having an inflow end and an outflow end;
a valve component including a valve stent and a prosthetic valve coupled to the valve stent such that the prosthetic valve is disposed in an interior lumen of the valve stent, the valve stent having an inflow end and an outflow end, wherein the inflow end of the valve stent faces the outflow end of the inflow stent;
an outflow stent having an inflow end and an outflow end, wherein the inflow end of the outflow stent faces the outflow end of the valve stent;
a first locking mechanism coupling the inflow stent to the valve stent, wherein the first locking mechanism includes a first lock loop extending radially with respect to a central longitudinal axis of the modular valve prosthesis and a first lock portion; and
a second locking mechanism coupling the inflow stent to the valve stent, wherein the second locking mechanism includes a second lock loop extending radially with respect to the central longitudinal axis of the modular valve prosthesis and a second lock portion,
wherein in a radially compressed delivery configuration, the first lock portion is longitudinally separated from the first lock loop and the second lock portion is longitudinally separated from the second lock loop, and
wherein in a radially expanded deployed configuration, the first lock portion is disposed through the first lock loop and interlocked therewith, and the second lock portion is disposed through the second lock loop and interlocked therewith.

8. The modular valve prosthesis of claim 7 , wherein the first lock portion comprises a first leg and a second leg extending generally longitudinally and parallel to each other, the first leg comprising a first shoulder and the second leg comprising a second shoulder, wherein the first leg and the second leg are configured to compress towards each other to pass through the first lock loop and then separate such that the first shoulder and the second shoulder interlock the first lock portion with the first lock loop.

9. The modular valve prosthesis of claim 8 , wherein the second lock portion comprises a third leg and a fourth leg extending generally parallel to each other, the third leg comprising a third shoulder and the fourth leg comprising a fourth shoulder, wherein the third leg and the fourth leg are configured to compress towards each other to pass through the second lock loop and then separate such that the third shoulder and the fourth shoulder interlock the second lock portion with the second lock loop.

10. The modular valve prosthesis of claim 7 , wherein the first lock loop and the second lock loop each extend radially inward towards the central longitudinal axis.

11. The modular valve prosthesis of claim 7 , wherein the first lock loop and the second lock loop each extend radially outward away from the central longitudinal axis.

12. The modular valve prosthesis of claim 7 , wherein the first lock portion comprises a first ring having a first bulge portion, wherein the first bulge portion is configured to compress to pass through the first lock loop and then expand such that the first bulge portion interlocks the first lock portion with the first lock loop.

13. The modular valve prosthesis of claim 12 , wherein the second lock portion comprises a second ring having a second bulge portion, wherein the second bulge portion is configured to compress to pass through the second lock loop and then expand such that the second bulge portion interlocks the second lock portion with the second lock loop.

Assignees

• Medtronic Vascular Inc

Inventors

• Bell Rodney
• Costello Declan
• Duffy Niall
• Harewood Frank

Classifications

• A61F2/2436 Primary

  Deployment by retracting a sheath · CPC title

• A61F2/2412

  with soft flexible valve members, e.g. tissue valves shaped like natural valves · CPC title

• A61F2/2418

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

• A61F2/852

  Two or more distinct overlapping stents · CPC title

• A61F2250/006

  modular · CPC title