| 摘要 |
Valve devices for replacement of mitral valves while preserving valvular and subvalvular mitral valve apparatus. The valve device may be configured as a double orifice valve replacement device, and may include an anchoring and manifold assembly coupleable to a delivery catheter. The assembly may include means for anchoring the device to the mitral valve or to a fixation device already attached to the mitral valve. A peripheral ring anchoring system secured to the assembly may include at least one expandable anchoring ring that is expandable within an orifice of the mitral valve so as to surround the orifice perimeter. A helical suture may be helically disposable about the ring, securing the ring to adjacent leaflet tissue. A trap door valve including a trap door body that seals against the anchoring ring during systole and unseals during the diastolic portion of the cardiac cycle may be provided. |
