Accession Number:

AD0630166

Title:

EXPERIMENTAL DETERMINATION OF PRESSURE-FLOW CHARACTERISTICS OF ARMY MEMBRANE OXYGENATOR, PROTOTYPES I AND II,

Descriptive Note:

Corporate Author:

HARRY DIAMOND LABS WASHINGTON D C

Personal Author(s):

Report Date:

1966-01-01

Pagination or Media Count:

29.0

Abstract:

An analysis was made of the pressure-flow characteristics of prototypes I and II of the Army membrane oxygenator. This oxygenator was designed with the objective of extending the period of oxygenation from 2 or 3 hours, the present maximum use period for existing oxygenators, to many hours. In this analysis, water was substituted for blood and air for oxygen. This analysis considered only the effects on the water flow of the length of the flow path and of the input water pressure, and the effects on the water flow of the pressure, the frequency of pulsation, and the flow of the air. Test results indicated that, for a given test condition, an increase in the oscillation frequency of the flowing gas slightly decreases the flow rate of water, at least over the frequency range of 60 to 100 cpm counter gas flow produces a significantly higher resistance to water flow than co-current flow the flow rate of water is proportional to the pressure presented to the blood inlet of the oxygenator an increase in the pressure of the flowing gas causes a decrease in the output flow of water and a longer flow path has a higher resistance to flow than a shorter path. Author

Subject Categories:

  • Medical Facilities, Equipment and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE