Microprocessor-control of drug infusion for automatic blood-pressure control

Abstract: A microprocessor-controlled infusion pump is described for the automatic control of hypotension or antihypertensive treatment with sodium nitroprussid. The system requires the continuous monitoring of blood pressure as an input signal to the microprocessor, the latter regulating blood pressure to the desired level by stepwise changes in infusion rate. The infusion pump proved valuable for intensive care and neurosurgery under controlled hypotension.