The present application discloses a
dialysis device, a method for determining the coagulation status of a dialyzer, and a
monitoring system. The dialyzer coagulation status
monitoring system is applied to a dialyzer connected with a dialyzer circuit and a blood circuit, wherein the dialyzer circuit is provided with a dialyzer
inlet pressure sensor and a dialyzer outlet
pressure sensor, and the blood circuit is provided with a blood chamber
inlet pressure sensor and a blood chamber outlet
pressure sensor, and further includes a
control system, which is used to determine the coagulation status of a dialyzer according to the formula (P BI +P BO ) / 2‑(P DI +P DO ) / 2 calculates the
transmembrane pressure, P BI is the pressure at the blood chamber entrance, P BO is the pressure at the blood chamber outlet, P DI is the pressure at the dialysate inlet, P DO is the pressure at the dialysate outlet; the flux at different times is calculated based on the
transmembrane pressure, and the flux is equal to the
dehydration rate of the dialyzer divided by the
transmembrane pressure; it is also used to calculate the flux attenuation rate based on the flux at different times, and the flux attenuation rate = (1-flux at a certain moment / flux at the initial moment) × 100%.