Cardiac valve procedure methods and devices

A for cover of the vessel or the heart surgery's component, wherein the component at least one part is suitable for placing the blood vessel's moving path, wherein the part of the upstream side and other side, wherein the part comprises: a) are valve device, such that the back of the crust flow rate of blood vessel is greater than the backlash flow; b) and filter, limiting particle embolism is fixed, and allowed the blood stasis and connected to the there vessel, wherein the filter is disposed in says the part of the upstream, further provided with a valve device is disposed on says the part of the other, thus drew supporting the filter other surface for preventing to the fibre of valve device hanging sidewise.