Infusion and blood chemistry monitoring system

Details Infusion and blood chemistry monitoring system Infusion and blood chemistry monitoring system

1983-08-16

1986-03-04

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604 49, 604 52, A61B 500

Patent

active

045739684

ABSTRACT:
A patient infusion and blood chemistry monitoring system is provided for controlled fluid infusion with intermittent interruption for automated drawing of a patient blood sample into contact with one or more electrochemical sensors to obtain blood chemistry determinations, such as measurements of blood electrolytes and the like. The system comprises an infusion pump operated by a control unit to supply a selected fluid to the patient through an infusion line and catheter. The control unit intermittently halts and reverses operation of the infusion pump to draw a patient blood sample through the catheter into contact with the electrochemical sensors positioned along the infusion line within a compact cassette near the patient and then to reinfuse the blood sample into the patient upon resumption of normal infusion operation. The sensors provide electrical input signals representative of patient blood chemistry to an analyzer which alters the signals to an appropriate readable output.

REFERENCES:
patent: 2483924 (1949-10-01), Mouliner
patent: 3469577 (1969-09-01), Kater
patent: 3498899 (1970-03-01), Kater et al.
patent: 3910256 (1975-10-01), Clark et al.
patent: 3993049 (1976-11-01), Kater
patent: 4094822 (1978-06-01), Kater
patent: 4240438 (1980-12-01), Updike et al.
patent: 4340457 (1982-06-01), Kater
patent: 4411792 (1983-10-01), Babb

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