The aperture ratio, %

0 5 10 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

1.15cP 0 0 0 0 0 0.07 0.66 1.41 2.18 2.84 3.65 4.31 4.74 5.06 5.32 5.51 5.64 5.76 5.84 5.82

2.29cP 0 0 0 0 0 0.07 0.62 1.30 2.09 2.79 3.52 4.06 4.51 4.76 5.01 5.19 5.34 5.46 5.47 5.50

Supplementary 1 Venous flow rate: valve opening and flow rate change

1