Closely controllable intravenous injection system

Details Closely controllable intravenous injection system Closely controllable intravenous injection system

1980-09-12

1982-08-24

Truluck, Dalton L.

Surgery

Respiratory method or device

Ozone or ion generation

128DIG12, 417543, A61M 500

Patent

active

043455948

ABSTRACT:
An apparatus is provided for injecting fluid into a patient over an extended period of time, such as in intravenous feeding of a patient. The apparatus enables close control of injection quantity and rate while assuring an even flow into the patient. The apparatus utilizes relatively simple disposable parts. The apparatus includes an air-operated peristaltic pump which pumps a controlled amount of fluid in each cycle of operation, and a pressure moderator which receives the liquid pulses and supplies an even flow to the patient. The moderator includes a closed chamber, and a resilient tube connected to the pump and having slits that permit the escape of pumped liquid into the chamber. The peristaltic pump includes a flexible but nonresilient tube connected to the container, the nonelasticity assuring that the tube does not expand beyond a predetermined dimension when a vacuum is applied to it.

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Lancet, Aug. 3, 1963, p. 228.

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