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Related Experiment Videos

Improvement of the magnetneumometer.

T Hirano1, H Mohri, K Ogawa

  • 1Nihonkohden Corporation, Tokyo, Japan.

Frontiers of Medical and Biological Engineering : the International Journal of the Japan Society of Medical Electronics and Biological Engineering
|January 1, 1991
PubMed
Summary

Researchers enhanced a magnetoneurometer for measuring rib cage and abdomen displacement during breathing. The improved device offers a wider measurement range and utilizes small, lightweight coils for enhanced respiratory monitoring.

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Area of Science:

  • Biomedical Engineering
  • Respiratory Physiology

Background:

  • Accurate measurement of respiratory motion is crucial for diagnosing and managing various pulmonary conditions.
  • Existing methods for measuring rib cage and abdomen displacement may have limitations in range or coil size.

Purpose of the Study:

  • To enhance the magnetoneurometer for extended measurement range.
  • To develop small-sized transmitting and receiving coils for improved application in respiratory monitoring.
  • To enable precise measurement of rib cage and abdomen displacement during breathing.

Main Methods:

  • Modification of the magnetoneurometer system.
  • Development and integration of miniaturized transmitting and receiving coils.
  • Testing and validation of the enhanced system for respiratory displacement measurements.

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Main Results:

  • Achieved an extended measurement range of 10-80 cm.
  • Reduced the noise level to less than 0.02 mm.
  • Successfully incorporated small and lightweight coils (30 x 16 x 3 mm, 4 g).

Conclusions:

  • The improved magnetoneurometer is suitable for measuring breathing-induced rib cage and abdomen displacement.
  • The miniaturized coils and extended range enhance the practicality and applicability of the device in respiratory studies.
  • This advancement facilitates more accurate and non-invasive respiratory motion analysis.