Granted Patent B2

US 12,193,932 · App. 17/739,790 · Granted Jan 14, 2025

Inventors: Randy Matthew Lane (Langley, CA); Karen Tsoek-Ji Wong (Richmond, CA); Ian Fraser Kerr (Vancouver, CA); Mark Segal (Vancouver, CA)

Assignee: Neovasc Tiara Inc.

A61F2/2409A61F2/2412A61F2/2418A61F2/243A61F2/2436A61F2220/0033A61F2230/0034A61F2230/006A61F2230/0069

Abstract

Claims (24)

1. A method of anchoring a prosthesis to a native heart valve, said method comprising:

providing a prosthetic heart valve comprising an expandable anchor frame, the anchor frame having an upstream end and a downstream end, one or more commissure posts each having a free end and a fixed end coupled to the anchor frame, a plurality of prosthetic valve leaflets coupled to the anchor frame, an anterior anchoring tab coupled to the anchor frame, and a second anterior anchor tab coupled to the anchor frame, the method further comprising radially expanding the second anterior anchor tab from a collapsed configuration to an expanded configuration to engage the native heart valve;

radially expanding the anchor frame from a collapsed configuration to an expanded configuration to engage the native heart valve;

radially expanding the anterior anchoring tab outward from the anchor frame;

radially expanding the anterior anchoring tab away from a nested configuration wherein the anterior anchoring tab is nested within the commissure post in the collapsed configuration;

anchoring the prosthesis to the native heart valve by engaging the anterior anchoring tab against an anterior portion of the native heart valve; and

radially expanding the second anterior anchoring tab away from a nested configuration wherein the second anterior anchoring tab is nested within a second commissure post in the collapsed configuration, and wherein the second commissure post is coupled to the anchor frame.

2. The method of claim 1 , wherein the prosthetic heart valve is a prosthetic mitral valve.

3. The method of claim 1 , wherein the prosthetic valve comprises an anterior leaflet, the method further comprising spanning a width of a native anterior valve leaflet between two native fibrous trigones with the anterior leaflet.

4. The method of claim 3 , further comprising causing deflection of the anterior leaflet away from the left ventricular outflow tract (LVOT) thereby forming an unobstructed outflow path during systole.

5. The method of claim 1 , further comprising a posterior anchoring tab coupled to the anchor frame, the method further comprising radially expanding the posterior anchoring tab from a collapsed configuration to an expanded configuration to engage the native heart valve.

6. The method of claim 5 , further comprising radially expanding the posterior anchor tab away from a nested configuration wherein the posterior anchoring tab is nested within a third commissure post in the collapsed configuration, and wherein the third commissure post is coupled to the anchor frame.

7. A method of anchoring a prosthesis to a native heart valve, said method comprising:

providing a prosthetic heart valve comprising an expandable anchor frame, the anchor frame having an upstream end and a downstream end, one or more commissure posts each having a free end and a fixed end coupled to the anchor frame, a plurality of prosthetic valve leaflets coupled to the anchor frame, an anterior anchoring tab coupled to the anchor frame, and a posterior anchoring tab coupled to the anchor frame, the method further comprising radially expanding the posterior anchoring tab from a collapsed configuration to an expanded configuration to engage the native heart valve;

radially expanding the anchor frame from a collapsed configuration to an expanded configuration to engage the native heart valve;

radially expanding the anterior anchoring tab outward from the anchor frame;

radially expanding the anterior anchoring tab away from a nested configuration wherein the anterior anchoring tab is nested within the commissure post in the collapsed configuration;

anchoring the prosthesis to the native heart valve by engaging the anterior anchoring tab against an anterior portion of the native heart valve; and

radially expanding the posterior anchor tab away from a nested configuration wherein the posterior anchoring tab is nested within a third commissure post in the collapsed configuration, and wherein the third commissure post is coupled to the anchor frame.

8. The method of claim 7 , wherein the prosthetic heart valve is a prosthetic mitral valve.

9. The method of claim 7 , wherein the prosthetic valve comprises an anterior leaflet, the method further comprising spanning a width of a native anterior valve leaflet between two native fibrous trigones with the anterior leaflet.

10. The method of claim 9 , further comprising causing deflection of the anterior leaflet away from the left ventricular outflow tract (LVOT) thereby forming an unobstructed outflow path during systole.

11. The method of claim 7 , further comprising a second anterior anchor tab coupled to the anchor frame, the method further comprising radially expanding the second anterior anchor tab from a collapsed configuration to an expanded configuration to engage the native heart valve.

12. The method of claim 11 , further comprising radially expanding the second anterior anchoring tab away from a nested configuration wherein the second anterior anchoring tab is nested within a second commissure post in the collapsed configuration, and wherein the second commissure post is coupled to the anchor frame.

Assignments (1)

Continuity (4)

References Cited (400)