CPC A61F 2/2418 (2013.01) [A61F 2/2433 (2013.01); A61F 2220/0008 (2013.01)] | 28 Claims |
1. A prosthetic heart valve device, comprising:
an inner frame having a meshed cylindrical structure which is radially deformable and opposite inflow and outflow ends, an interior of the inner frame being an axially-through blood flow passage, the inner frame having relative compressed and expanded configurations;
leaflets connected to the inner frame and cooperating with each other to control opening and closing of the blood flow passage; and
a positioner arranged in a circumferential direction of the inner frame, the positioner comprising a fixed end connected to the inner frame and a free end extending towards the inflow end, the positioner being configured to be switchable among the following configurations:
a loaded configuration, wherein the inner frame is in the compressed configuration, and the fixed end and the free end of the positioner contact or are adjacent to the inner frame in a radial direction of the inner frame;
a transition configuration, wherein inner frame is in the compressed configuration, while the free end of the positioner extends from a peripheral region of the inner frame, with a first receiving space defined between the free end of the positioner and an outer wall of the inner frame for allowing entry of a native leaflet; and
a released configuration, wherein the inner frame is in the expanded configuration, with a second receiving space defined between the free end of the positioner and the outer wall of the inner frame for clipping the native leaflet, wherein the prosthetic heart valve device is a prosthetic aortic valve device, wherein the outflow end of the inner frame is flared in the expanded configuration, and wherein a flared angle of the outflow end of the inner frame relative to an axial direction of the inner frame is defined as P4, wherein 0 degrees <P4≤45 degrees.
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