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[Liquid ventilation--1]

R Nekvasil1, M Dressler, Z Vecera

  • 1II. dĕtská klinika, FDN J.G. Mendela, Brno.

Ceskoslovenska Pediatrie
|October 1, 1993
PubMed
Summary
This summary is machine-generated.

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This study details oxygen and carbon dioxide sorption in perfluorocarbon solutions. Optimal oxygen saturation occurs at 8°C, while carbon dioxide rapidly desorbs at 37°C, informing oxygenator design.

Area of Science:

  • Biomedical Engineering
  • Chemical Engineering

Context:

  • Perfluorocarbon solutions are utilized for gas transport in biomedical applications.
  • Understanding gas sorption and desorption kinetics is crucial for optimizing oxygenator performance.

Purpose:

  • To investigate the sorption and desorption characteristics of oxygen and carbon dioxide in a specific perfluorocarbon solution (RM 101).
  • To determine the optimal conditions for gas saturation and the kinetic parameters governing gas exchange.

Summary:

  • Maximal oxygen saturation of 77.3 vol.% was achieved at 8°C, decreasing to 67.6 vol.% at 37°C.
  • Oxygen saturation followed a seventh-order linear equation.
  • Carbon dioxide desorption was most rapid at 37°C, with the solution containing less than 2% CO2 after 13 minutes, compared to 25 vol.% at 8°C.

Related Experiment Videos

  • Carbon dioxide desorption kinetics followed a fifth-order linear equation.
  • Practical saturation time for oxygen is recommended not to exceed 15-20 minutes.

    • Impact:

    • The kinetic parameters are vital for designing efficient liquid membrane or bubble oxygenators.
    • A bubble oxygenator utilizing this solution achieved 1.9 times higher oxygen concentration than manufacturer specifications.