Intravenous metering device

Details Intravenous metering device Intravenous metering device

1982-02-19

1984-06-12

Truluck, Dalton L.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604123, 417443, 128DIG12, A61M 500

Patent

active

044539320

ABSTRACT:
A device for precise metering of liquids for intravenous delivery to a patient, the device including a pumping chamber with a reciprocable diaphragm positioned therein. The device also includes check valves positioned at the pumping chamber inlet and outlet, and a gas retention chamber located upstream of the pumping chamber and having an upper portion providing for the formation of a gas-liquid interface and a lower portion from which liquid free of gas bubbles may be removed and directed into the pumping chamber.

REFERENCES:
patent: 3559644 (1971-02-01), Stoft et al.
patent: 3874826 (1975-04-01), Lundquist
patent: 4030495 (1977-06-01), Virag
patent: 4140118 (1979-02-01), Jassawalla
patent: 4142524 (1979-03-01), Jassawalla et al.
patent: 4336800 (1982-06-01), Pastrone
Abbott/Shaw Life Care Pump.RTM. Model 11/D, No. 7011, Published 7/78.

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