Anesthetic and respiratory gas measurements by infrared technology.

  • Sean D. Walker
  • Published 1989 in Biomedical instrumentation & technology


Infrared systems for measuring respiratory gas are accurate, stable, and reliable, and cover most respiratory gases. Their most serious limitations (requiring complementary analyzers) are their inabilities to measure O2 (to assure a safe inspired O2) and nitrogen (for clinical N2 washout and detection of air emboli). Properly designed IR systems can monitor… (More)


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