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Computer-controlled mechanical lung model for application in pulmonary function studies

A F Verbraak1, J E Beneken, J M Bogaard

  • 1Department of Pulmonary Diseases, University Hospital Dijkzigt, Rotterdam, The Netherlands.

Medical & Biological Engineering & Computing
|November 1, 1995
PubMed
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A novel computer-controlled mechanical lung model simulates breathing patterns and impaired pulmonary mechanics. This device aids in testing lung function equipment and validating computer programs for respiratory research.

Area of Science:

  • Biomedical Engineering
  • Respiratory Physiology

Background:

  • Accurate simulation of lung mechanics is crucial for developing and validating respiratory equipment.
  • Existing models may lack the flexibility to simulate a wide range of pulmonary conditions.

Purpose of the Study:

  • To develop and describe a computer-controlled mechanical lung model.
  • To demonstrate its utility in testing lung function equipment and simulating impaired pulmonary mechanics.

Main Methods:

  • A mechanical lung model constructed with bellows, a pipe system, and a servo-controlled motor.
  • Computer control allows simulation of diverse breathing patterns and airway resistances.
  • Inclusion of a compressible element (CE) to mimic interstitial space properties.

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Main Results:

  • The model successfully simulates a wide range of breathing patterns.
  • Variable airway resistance and lung compliance can be programmed.
  • Automated measurement sequences can be executed without technician intervention.

Conclusions:

  • The developed mechanical lung model offers a versatile platform for respiratory research.
  • It enables accurate testing of lung function equipment and validation of computational models.
  • This system facilitates the simulation of various pulmonary conditions and mechanics.