Intravenous metering device

Details Intravenous metering device Intravenous metering device

A - Human Necessities

61

M

128/91

A61M 5/14 (2006.01) A61M 5/142 (2006.01)

Patent

CA 1168538

S P E C I F I C A T I O N INTRAVENOUS METERING DEVICE ABSTRACT A device for precise metering of liquids for intravenous delivery to a patient and its method of use, the device including a pumping chamber with a reciprocable diaphragm positioned therein. The device also includes valves positioned at the pumping chamber inlet and outlet, the valve at the pumping chamber inlet being operated independently of the pressure within the pumping chamber. The device also includes a gas retention chamber having an upper portion providing for the forma- tion of the gas-liquid interface and a lower portion from which liquid free of gas bubbles may be removed.

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