Patient controlled medication infusion system

Details Patient controlled medication infusion system Patient controlled medication infusion system

1984-04-16

1985-11-05

Coven, Edward M.

Surgery

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

Treating material introduced into or removed from body...

604 67, 128DIG12, A61M 500

Patent

active

045511330

ABSTRACT:
A medication infusion system which includes an infusion line for introducing medication to a peripheral vein of a patient. The infusion system includes a pump for delivering the medication and a pressure transducer within the infusion line for converting sensed fluid pressure waves to electrical signals. An amplifier is provided within the system for increasing the strength of the electrical signal. A gain control amplifier is electrically connected within the system for maintaining the electrical signal at a predetermined amplitude regardless of input variations. A tracking filter is provided within the system to provide an electrical signal representative of the patient's respiration rate over a preselected full clinical respiration rate range. A microprocessor is provided within the system for deriving from the electrical signal a control signal for controlling the operation of the pump. The microprocessor includes the ability to determine the presence or absence of the electrical signal representative of the patient's respiration rate, a comparator for comparing the rate signal with a preselected respiration rate and a storage capability for storing the rates and preselected rate values. The system further includes a motor control for providing a signal to the pump for actuating the pump in preselected increments when directed by the microprocessor.

REFERENCES:
patent: 4231354 (1980-11-01), Kurtz et al.
patent: 4275727 (1981-06-01), Keeriszanto
patent: 4280494 (1981-07-01), Cosgrove et al.
patent: 4392849 (1983-07-01), Petre et al.
patent: 4409966 (1983-10-01), Lambecht et al.
patent: 4457751 (1984-07-01), Rodler
patent: 4475901 (1984-10-01), Kraegen et al.

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