Automated didactic prototype of pulmonary ventilation exhibits a simulation of intrathoracic pressure variations during diaphragmatic function

Authors

DOI:

https://doi.org/10.11606/issn.1679-9836.v101i6e-196086

Keywords:

Prototype, Pulmonary, Ventilation, Thorax, Pressure

Abstract

The movement of air from the environment to the alveoli is a vital and complex phenomenon that occurs due to variations in intrathoracic and airway pressures in relation to the atmosphere. The construction of didactic prototypes can minimize the abstraction required in these in vivo phenomena. In this study, we automated a didactic prototype of pulmonary ventilation already described in literature to simulate and exhibit variations in intrathoracic pressure during diaphragmatic function. A pulmonary ventilation (PV) prototype was produced with recyclable materials, and automated by adapting a pressure sensor in the system to generate pressure curves as a function of time during the simulation of diaphragmatic function. The automated plunger’s downward traction induced by the servomotor (such as diaphragmatic) reduced the pressure inside the bottle (intrathoracic), and this variation can be observed graphically on a computer interface while the balloon was expanded, and atmospheric air invaded its interior. Conclusion: The incorporation of technology into a simple PV prototype allowed a safe and simulated demonstration of how the diaphragm induces the variation of the intrathoracic pressure in relation to the atmosphere concomitantly with the pulmonary deformation that occurs during inspiration and exhalation.

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Author Biographies

  • Raphael José Pereira, Federal University of Juiz de Fora, Center for Reproductive Biology - CRB, Laboratory of Immunopathology and Experimental Pathology

    Laboratory of Immunopathology and Experimental Pathology, Center for Reproductive Biology - CRB, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil

     

  • Vitor Mainenti Leal Lopes, Federal University of Juiz de Fora, Department of Production and Mechanical Engineering

    Department of Production and Mechanical Engineering. Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil

  • Rodrigo Hohl, Federal University of Juiz de Fora, Physiology Department

    Federal University of Juiz de Fora, Physiology Department, Juiz de Fora, Minas Gerais, Brazil

  • Carlos Alberto Mourão-Júnior, Federal University of Juiz de Fora, Physiology Department

    Federal University of Juiz de Fora, Physiology Department, Juiz de Fora, Minas Gerais, Brazil

  • Akinori Cardozo Nagato, Federal University of Juiz de Fora

    Physiology Department, Federal University of Juiz de Fora, Juiz de Fora, MG. Laboratory of Immunopathology and Experimental Pathology, Center for Reproductive Biology - CRB, Federal University of Juiz de Fora, MG.

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Published

2022-11-29

Issue

Vol. 101 No. 6 (2022)

Section

Artigos Originais/Originals Articles

License

Copyright (c) 2022 Raphael José Pereira, Vitor Mainenti Leal Lopes, Rodrigo Hohl, Carlos Alberto Mourão-Júnior, Akinori Cardozo Nagato

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This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

How to Cite

Pereira, R. J., Lopes, V. M. L., Hohl, R., Mourão-Júnior, C. A., & Nagato, A. C. (2022). Automated didactic prototype of pulmonary ventilation exhibits a simulation of intrathoracic pressure variations during diaphragmatic function. Revista De Medicina, 101(6), e-196086. https://doi.org/10.11606/issn.1679-9836.v101i6e-196086