What this is. The team's hemocompatibility draft names four things that hurt blood in a pump: high shear, stagnation, recirculation and flow separation (บริเวณ shear สูง, จุดเลือดนิ่ง, การไหลย้อนวน, การไหลแยกออกจากผิว). Each is set by a handful of numbers on the drawing.

How to read it. Move a lever; the section recolours by risk and the four tiles update. Click a zone or a tile for the number, the equation and the paper behind its threshold. Data holds the mechanism by lever matrix, the Mahidol comparison, what CFD adds, and the sources.

What it is not. Order estimates for ranking a change, not a CFD and not a device. Zone 1 uses the three published shear lines; zones 2 to 4 use this page's own bands, stated on each card.