Tricuspid regurgitation control devices for orthogonal transcatheter heart valve prosthesis
The invention relates to a heart valve regurgitation drum and optional closure disk and/or tubular stent to manage and provide levels of intentional regurgitation within an orthogonally delivered transcatheter prosthetic heart valve having a first inner flow control component/valve, a second inner regurgitation control component, and an outer annular support frame having compressible wire cells that facilitate folding flat along the z-axis and compressing the valve vertically along the y-axis, or orthogonally to the central axis of the flow control component, allowing a very large diameter valve to be delivered and deployed to the tricuspid valve from the inferior vena cava or superior vena cava, or trans-atrially to the mitral valve, the valve having a height of about 5-60 mm and a diameter of about 25-80 mm, without requiring an oversized diameter catheter and without requiring delivery and deployment from a catheter at an acute angle of approach.
1. An orthogonally-deliverable prosthetic heart valve, the prosthetic valve comprising:
an outer frame defining a central channel that extends along a central axis of the outer frame, the outer frame forming a plurality of compressible wire cells having an orientation and cell geometry that allows compression of the outer frame in an axial direction parallel to the central axis, the outer frame further forming a pair of hinge points that allow folding of the outer frame along a long-axis that extends through the hinge points;
a flow control component disposed within the central channel and coupled to the outer frame, the flow control component having an inner frame and a set of leaflets coupled to the inner frame, the flow control component configured to permit blood flow in a first direction through an inflow end of the prosthetic valve to an outflow end of the prosthetic valve and to block blood flow in a second direction, opposite the first direction; and
a regurgitation control component disposed within the central channel and coupled to a drum that is attached to a top edge of the outer frame to cover a portion of the central channel adjacent to and outside of the inner frame of the flow control component, the regurgitation control component configured to selectively permit a controlled regurgitation in the second direction,
the prosthetic valve configured to be folded along the long-axis and compressed along the central axis to place the prosthetic valve in a compressed configuration for orthogonal delivery via a delivery catheter, the long-axis being substantially parallel to a length-wise axis of the delivery catheter when the prosthetic valve is disposed therein, the prosthetic valve configured to transition to an expanded configuration when the prosthetic valve is released from the delivery catheter.
2. The prosthetic valve of claim 1 , wherein the flow control component is elastically deformable from a cylindrical configuration to a flattened configuration when the prosthetic valve is placed in the compressed configuration.
3. The prosthetic valve of claim 1 , wherein the central axis is a first central axis extending through the outer frame, the flow control component being disposed within the central channel and coupled to the outer frame such that a second central axis extending through the flow control component is offset from the first central axis.
4. The prosthetic valve of claim 1 , wherein the central axis is a first central axis extending through the outer frame, the regurgitation control component is disposed within the central channel and coupled to the drum such that a second central axis extending through the regurgitation control component is offset from the first central axis.
5. The prosthetic valve of claim 1 , wherein the inner frame of the flow control component is a first inner frame, and
the regurgitation control component includes a second inner frame, a tissue cover attached to the second inner frame, and a flow modifier mounted to the tissue cover.
6. The prosthetic valve of claim 5 , wherein the flow modifier is at least one of a channel, a tubular stent, or an occluder.
7. The prosthetic valve of claim 5 , wherein the regurgitation control component includes at least one radio-opaque marker.
8. The prosthetic valve of claim 1 , wherein the regurgitation control component includes a tissue cover selectively coupled to the drum, the tissue cover defining an aperture configured to permit the controlled regurgitation in the second direction through the aperture.
9. The prosthetic valve of claim 8 , wherein a size of the aperture is based at least in part on a desired grade of regurgitation through the regurgitation control component, the grade of regurgitation being between 0.5 and 2.0.
10. The prosthetic valve of claim 8 , wherein the tissue cover includes a reinforcement ring circumscribing the aperture.
11. The prosthetic valve of claim 10 , wherein the reinforcement ring is configured to reinforce the regurgitation control component to limit tearing associated with the aperture.
12. The prosthetic valve of claim 10 , wherein the regurgitation control component includes at least one radio-opaque marker mounted on the reinforcement ring.
13. The prosthetic valve of claim 1 , wherein the regurgitation control component includes a plurality of leaflets configured to permit the controlled regurgitation through the regurgitation control component in the second direction and to block blood flow through the regurgitation control component in the first direction.
14. The prosthetic valve of claim 13 , further comprising:
a tissue cover selectively coupled to the drum to prevent the controlled regurgitation through the regurgitation control component in the second direction.
15. The prosthetic valve of claim 1 , wherein the regurgitation control component is a first regurgitation control component, the prosthetic valve further comprising:
a second regurgitation control component coupled to the drum, the second regurgitation control component configured to selectively permit a controlled regurgitation in the second direction.
16. The prosthetic valve of claim 15 , wherein at least the first regurgitation control component includes a plurality of leaflets configured to permit the controlled regurgitation through the regurgitation control component in the second direction and to block blood flow through the regurgitation control component in the first direction.
17. The prosthetic valve of claim 15 , wherein the second regurgitation control component defines an aperture configured to permit the regurgitation blood flow through the second regurgitation control component in the second direction, the prosthetic valve further comprising:
a tissue cover configured to prevent the controlled regurgitation blood flow through the second regurgitation control component in the second direction when coupled to the drum.
18. The prosthetic valve of claim 17 , wherein the tissue cover is configured to be perforated to allow the controlled regurgitation through the second regurgitation control component.