Blood transfusion apparatus

Details Blood transfusion apparatus Blood transfusion apparatus

1974-11-25

1976-11-09

Truluck, Dalton L.

Surgery

Respiratory method or device

Ozone or ion generation

128DIG12, 222 63, 417 43, 417477, A61M 500, F04B 4308

Patent

active

039904440

ABSTRACT:
This invention relates to a device adapted to be attached to a conventional transfusion tube of a blood-transfusion apparatus, said device permitting the drop-by-drop regulation and control of the flow-rate and comprising a mechanical pump comprising a plurality of rollers rotatably mounted around the periphery of a disc rotatably mounted within a casing chamber, said chamber having the same diameter as the envelope defined by said rollers, said casing having an opening therein and comprising a slidable member in said opening adapted to be biased by resilient means against said rollers, thus permitting the interposition between said slidable member and said rollers of transfusion tubes of different diameters. An air-bubble detector is provided which stops the pump if an air bubble is present in the transfusion tube, and the failure of any electrical or mechanical member actuates an optical and acoustic alarm signal.

REFERENCES:
patent: 1988337 (1935-01-01), Santiago et al.
patent: 2434802 (1948-01-01), Jacobs
patent: 2483924 (1949-10-01), Moulinier
patent: 3163176 (1964-12-01), Darling
patent: 3366071 (1968-01-01), Dutler
patent: 3425415 (1969-02-01), Gordon et al.
patent: 3736930 (1973-06-01), Georgi
patent: 3812482 (1974-05-01), Clark

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