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Device for measuring soft tissue interface pressures.

J C Barbenel1, S Sockalingham

  • 1Bioengineering Unit, University of Strathclyde, Wolfson Centre, Glasgow, UK.

Journal of Biomedical Engineering
|November 1, 1990
PubMed
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A new, low-cost pressure sensing device offers high accuracy and continuous electrical output. This robust and reliable sensor is suitable for clinical applications, demonstrating satisfactory performance in studies.

Area of Science:

  • Biomedical Engineering
  • Medical Devices
  • Sensor Technology

Background:

  • Accurate pressure monitoring is crucial in various medical applications.
  • Existing pressure sensing devices can be costly or lack flexibility.
  • A need exists for a reliable, cost-effective, and adaptable pressure sensor.

Purpose of the Study:

  • To describe the construction and performance of a novel, low-cost pressure sensing device.
  • To evaluate the accuracy, linearity, and reliability of the developed sensor.
  • To assess the suitability of the device for clinical use.

Main Methods:

  • Construction of a pressure sensing device using a commercially available piezo-resistive transducer, an electropneumatic sensor capsule, and a 1m tube.
  • The transducer provides a voltage output proportional to applied pressure.

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  • The device incorporates temperature compensation and a flexible sensor cell.

    • Main Results:

    • The developed pressure sensing device exhibits high accuracy, good linearity, and negligible hysteresis.
    • The device is temperature compensated and cost-effective.
    • The sensor demonstrated robust and reliable performance in laboratory and clinical studies.

    Conclusions:

    • The described pressure sensing device is a simple, low-cost, and high-accuracy solution.
    • Its flexibility and continuous electrical output make it suitable for various medical applications.
    • The device's proven reliability in clinical studies supports its potential for widespread adoption.