Primary animal experiment to test the feasibility of a novel Y-Z magnetic hepatic portal blocking band

Figure 1  Physical image of the Y-Z magnetic hepatic portal blocking band.

Figure 2  The magnetic force-displacement curve.

Figure 3  Schematic diagram of the occlusion pressure of the Y-Z magnetic hepatic portal blocking band on gas.

Figure 4 Intraoperative procedure of hepatic portal blood flow occlusion. A and B: Hepatic portal blood flow occlusion was performed using the Y-Z magnetic hepatic portal blocking band; C and D: Hepatic portal blood flow occlusion was performed using the modified T tube.