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Related Experiment Videos

The Extensometer. Potential applications in anaesthesia and intensive care.

J R Brimacombe1, A G MacFie, A McCrirrick

  • 1Department of Anaesthetics, Royal Perth Hospital, Western Australia.

Anaesthesia
|September 1, 1991
PubMed
Summary

A novel Extensometer device accurately measures length changes on curved surfaces. This innovation offers significant potential for respiratory monitoring and ventilatory pattern analysis in clinical settings.

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Area of Science:

  • Biomedical Engineering
  • Medical Devices
  • Respiratory Physiology

Background:

  • Accurate measurement of chest and abdominal wall motion is crucial for respiratory monitoring.
  • Existing methods may have limitations in continuous, rapid, or convex surface measurements.
  • The need for advanced instrumentation in anesthesia and intensive care settings is ongoing.

Purpose of the Study:

  • To introduce and describe the principles of a new Extensometer device.
  • To evaluate the performance and clinical utility of the Extensometer.
  • To explore the potential applications of the Extensometer in respiratory monitoring.

Main Methods:

  • Laboratory testing to assess the linearity and response rate of the Extensometer.
  • Clinical assessment in anesthetized patients to quantify chest and abdominal wall movement.

Related Experiment Videos

  • Evaluation of the device's capability for continuous length measurement over convex surfaces.

    • Main Results:

    • The Extensometer demonstrated a linear response in laboratory tests.
    • The device successfully quantified abdominal and chest wall movements in anesthetized patients.
    • The Extensometer exhibits a rapid response rate suitable for dynamic measurements.

    Conclusions:

    • The Extensometer is a promising new tool for continuous, accurate length measurement on convex surfaces.
    • Its rapid response and accuracy make it valuable for research and clinical applications, especially in respiratory monitoring.
    • Potential applications include ventilatory pattern analysis and enhanced patient monitoring during anesthesia and intensive care.