Fluid supply controlling/monitoring device for drug infusion system

PURPOSE: To provide an electromechanical system for infusing drugs continuously into a patient's body by constituting a device to be used along with a disposable fluid channel with a sterilizing cassette including a multi-channel pumping element and a sensor-interface incorporated. CONSTITUTION: The device comprises a fluid supply monitoring/controlling device driving means 14, a monitoring means 16, and a controlling means 18. The driving means 14 functions to supply a fluid to a patient and drives one or a plurality of pumps accommodated in a cassette 12 with a disposable fluid channel. An output of a cassette sensor in the cassette 12 is sent to a monutoring means 16 via a connecting path 19. Information from the driving sensor in the driving means 14 is transmitted to the monitoring mean 16 via a connecting path 20. Position feedback information is sent to a contralling means 18 from the driving means 14 via a connecting means 22. The controlling means 18 operates a driving means according to various commands on the input line 24. COPYRIGHT: (C)1989,JPO