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Microprocessors in intensive care medicine

D R Westenskow, R J Bowman, K B Ohlson

    Medical Instrumentation
    |November 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

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    Microprocessors enhance intensive care instrumentation by enabling automatic feedback control for mechanical ventilation and fluid infusion. These systems improve patient resuscitation and metabolic monitoring through advanced control and intelligent features.

    Area of Science:

    • Biomedical Engineering
    • Critical Care Medicine
    • Computer Science

    Background:

    • Intensive care units (ICUs) require sophisticated instrumentation for patient monitoring and treatment.
    • Traditional instrumentation often lacks advanced control capabilities, limiting precision and responsiveness.

    Purpose of the Study:

    • To present specific applications of microprocessors in intensive care instrumentation.
    • To demonstrate the expansion of instrumentation capabilities and implementation of feedback control.

    Main Methods:

    • Utilizing microprocessor technology for automatic feedback control of mechanical ventilation based on respiratory gas analysis.
    • Implementing closed-loop microprocessor control for intravenous fluid infusion to achieve targeted urine output in burn patients.

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  • Employing microprocessors for indirect calorimetry to measure metabolic rate and control measurement instrumentation.

    • Main Results:

    • Successful application of microprocessors in controlling mechanical ventilation using end-tidal carbon dioxide, oxygen consumption, and carbon dioxide production.
    • Demonstrated effective closed-loop fluid infusion control for burn patient resuscitation.
    • Enabled accurate metabolic rate measurement and instrumentation control via indirect calorimetry.

    Conclusions:

    • Microprocessor technology significantly expands the capabilities of intensive care instrumentation.
    • Feedback control systems implemented with microprocessors enhance precision in critical care applications.
    • Advanced features like user guidance, automatic calibration, self-diagnostics, and intelligent alarms improve system reliability and usability.