| 摘要 |
An artificial heart valve and weaving method thereof are disclosed. The valve stent includes a tubular stent ( 10 ), valve leaflets ( 33 ), sealing membranes ( 351, 354 ), x-ray opaque markers ( 311, 312 ) and flexible connecting loops ( 41 ). The middle segment ( 15 ) of the net stent ( 10 ) is tubular or drum-shaped, or provided with radial protrusion structures ( 153 ), or provided with outer annular structures ( 155 ), or provided with outer free tongues ( 156 ), or provided with radial protrusion structures ( 153 ) and outer free tongues ( 156 ). The stent can be made by up and down interweaving the same one elastic metal wire, and also can be made by up and down interweaving different elastic metal wires. Moreover, the structure, shape and function of the valve stent are optimized; in radical compression, the valve can be transported to the right place with the help of interventional device; after expansion, fitted with figure of the vascular wall in the radical and axial direction, the artificial heart valve stent will not produce paravalvular leak; even more after implanting, the valve has a normal effect on prevent the slippage of artificial valve, which is caused by the blood reflux through the closed valve. |
