Prosthetic device for heart valve reinforcement and remodeling procedures
View Patent ↗A prosthetic heart valve reinforcement ring is disclosed, which includes a ring body sized and dimensioned to fit an annulus of a heart valve. The ring body has an inner surface. A plurality of suture engaging features is on the inner surface of the ring body. A method of reinforcing a heart valve is also disclosed. Sutures are provided around an annulus of a heart valve. The proper size of the heart valve is determined by inserting a prosthetic ring around the annulus of the heart valve. The fit of the prosthetic ring is tested by attaching the sutures to the suture engaging features of the prosthetic ring. The fit of the prosthetic ring is adjusted by manipulating the sutures about the suture engaging features. The sutures are tied, securing the prosthetic ring in place.
1. A prosthetic heart valve reinforcement ring, comprising a ring body sized and dimensioned to fit an annulus of a heart valve, the ring body having an outer surface and an opposing inner surface, a plurality of suture engaging features on the inner surface of the ring body; the suture engaging features comprising a plurality of grooves formed on the inner surface of the ring body; a plurality of suture tie-down hooks interleaved between the grooves wherein each hook is adjacent to two grooves; each hook having a hooked end projecting outwardly towards the outer surface and radially away from the inner surface of the ring body; an inner ring releasably attachable to an inner surface of the ring body, the inner ring configured and arranged to temporarily trap annular sutures between the ring body and the inner ring.
2. The prosthetic heart valve reinforcement ring of claim 1 , wherein the grooves have a rubber coating.
3. The prosthetic heart valve reinforcement ring of claim 1 , wherein the hooked end is formed by a recess within the ring body.
4. The prosthetic heart valve reinforcement ring of claim 1 , wherein the hooked end is formed by a projection from the ring body.
5. A method of reinforcing a heart valve, comprising:
providing sutures around an annulus of a heart valve;
inserting a prosthetic ring having a plurality of suture engaging features around the annulus of the heart valve, the prosthetic ring comprising a ring body having an outer surface and an opposing inner surface, a plurality of suture engaging features on the inner surface of the ring body, the suture engaging features comprising a plurality of grooves formed on the inner surface of the ring body; a plurality of suture tie-down hooks interleaved between the grooves wherein each hook is adjacent to two grooves, each hook having a hooked end projecting outwardly towards the outer surface and radially away from the inner surface of the ring body;
attaching the prosthetic ring to an inner ring, wherein the inner ring releasably engages an inner surface of the ring body, the inner ring configured and arranged to temporarily trap the sutures between the ring body and the inner ring.
6. The method of claim 5 , further comprising using a knot-tying device to tie the sutures.
7. The method of claim 5 , further comprising wrapping sutures on the prosthetic ring.
8. The method of claim 5 , further comprising tying the sutures to the annulus of the heart valve.
9. The method of claim 5 , further comprising removing the inner ring.
10. The method of claim 5 , further comprising tying the sutures to the hooks of the suture engaging features.
11. A prosthetic heart valve reinforcement ring, comprising a ring body sized and dimensioned to fit an annulus of a heart valve, the ring body having an outer surface and an opposing inner surface, a plurality of suture engaging features on the inner surface of the ring body; the suture engaging features comprising a plurality of grooves formed on the inner surface of the ring body; a plurality of suture tie-down hooks interleaved between the grooves wherein each hook is adjacent to two grooves; each hook having a hooked end projecting outwardly towards the outer surface and radially away from the inner surface of the ring body; the hooked end of each hook further being distinct from the adjacent two grooves; an inner ring releasably attachable to an inner surface of the ring body, the inner ring configured and arranged to temporarily trap annular sutures between the ring body and the inner ring.