METERING DEVICE Russian patent published in 1996 - IPC

FIELD: medical equipment. SUBSTANCE: metering device has flexible vessel connected with pipeline for supply of metered liquid and pipeline for discharge of metered dose; electromagnetic valve installed on pipelines for their alternate shutoff and control unit connected with its output to electric input of valve. Introduced into metering device is means for detection of the preset level of measured liquid, whose output is connected with input of control unit and rigid measuring vessel accommodating flexible vessel. Rigid measuring vessel is filled up to mark of initial level with measured liquid. Measured liquid in the invention version is conducting. EFFECT: higher efficiency. 2 cl, 1 dwg