Digital impedance-method pulmonary circulation haemodynamics monitor

The utility model provides a digital impedance-method pulmonary circulation haemodynamics monitor, which comprises a signal acquisition module, an analog/digital (A/D) conversion module, and a microcomputer system, wherein the output end of the signal acquisition module is connected with the input end of the A/D conversion module; the output end of the A/D conversion module is connected with the input end of the microcomputer system; and the signal acquisition module comprises an electrocardiograph acquisition circuit, a cardiac sound acquisition circuit and a pulmonary impedance acquisition circuit. The monitor has the advantages that: an impedance technology is adopted, the haemodynamics change of pulmonary circulation in each cardiac cycle is measured, and the technology is digitalized, intelligentized and humanized.