Transcatheter heart valve prosthesis assembled inside heart chambers or blood vessels
Some embodiments described herein include a heart valve replacement system that may be delivered to the targeted heart valve site via a delivery catheter. In some embodiments, the heart valve replacement system can assemble a valve device after the valve device is delivered to the heart. In some embodiments, heart valve replacement system includes two anterior flaps that are separate but overlap each other.
1. A prosthetic tricuspid valve having a deployed configuration comprising:
a main body comprising a framework of multiple cells and an occluder having valve leaflets arranged to allow flow through the main body from an inlet end to an outlet end;
a first anterior flap comprising one or more cells that are formed integrally with the framework of the main body and extending laterally from the outlet end of the main body, wherein the first anterior flap has a width that is greater than two or more cells of the multiple cells; and
a second anterior flap comprising one or more cells that are formed integrally with the framework of the main body and extending laterally from the outlet end of the main body in a same direction as the first anterior flap,
wherein portions of the first and second anterior flaps overlap each other while the prosthetic tricuspid valve is in the deployed configuration.
2. The prosthetic tricuspid valve of claim 1 , wherein the first anterior flap contacts a wall of a right ventricle when the prosthetic tricuspid valve is implanted in a native tricuspid valve.
3. The prosthetic tricuspid valve of claim 2 ; wherein the wall contacted by the first anterior flap comprises a wall of a right ventricular outflow tract.
4. The prosthetic tricuspid valve of claim 1 , further comprising a posterior flap extending laterally from the outlet end of the main body in an opposite direction as the first and second anterior flaps.
5. The prosthetic tricuspid valve of claim 4 , wherein the first and second anterior flaps extend farther laterally than the posterior flap.
6. The prosthetic tricuspid valve of claim 4 , wherein the first and second anterior flaps in combination are wider than the posterior flap.
7. The prosthetic tricuspid valve of claim 4 , wherein the first and second anterior flaps and the posterior flap are made of a single, unitary material that was cut and expanded.
8. The prosthetic tricuspid valve of claim 4 , wherein a distal tip portion of the posterior flap extends along an axis that is at a non-zero angle relative to a portion of the posterior flap that extends directly from the main body.
9. The prosthetic tricuspid valve of claim 1 , wherein the first and second anterior flaps are each arranged to extend into a right ventricular outflow tract when the prosthetic tricuspid valve is implanted in a native tricuspid valve.
10. The prosthetic tricuspid valve of claim 9 , wherein the first and second anterior flaps are also configured to occlude a portion of a native tricuspid valve opening.