Novel ascites hepatic-vein bypass anti-thrombus stent device with controllable one-way valve

The invention discloses an ascites hepatic-vein bypass anti-thrombus stent device with a controllable one-way valve. The device includes a puncture retracting outfit for creating a bypass channel, a main channel stent and a retractable anti-backflow one-way valve stent. According to the device, a hepatic vein is punctured from a jugular vein to an abdominal cavity through the puncture outfit to create the bypass channel, the main channel stent is placed in the bypass channel, the smoothness of the channel is maintained, and the retractable anti-backflow one-way valve stent is placed into the main channel stent to create an anti-flowback one-way channel to facilitate bypass of liquid in the abdominal cavity into the hepatic vein, and meanwhile blood in the hepatic vein does not flow back into the abdominal cavity. Once thrombus is formed in the main channel stent, the anti-backflow one-way valve stent can be taken out again for replacement. The surfaces and inner surfaces of the main channel stent and retracta