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A novel mechanical lung model of pulmonary diseases to assist with teaching and training

BACKGROUND: A design concept of low-cost, simple, fully mechanical model of a mechanically ventilated, passively breathing lung is developed. An example model is built to simulate a patient under mechanical ventilation with accurate volumes and compliances, while connected directly to a ventilator....

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Detalles Bibliográficos
Autores principales: Chase, J Geoffrey, Yuta, Toshinori, Mulligan, Kerry J, Shaw, Geoffrey M, Horn, Beverley
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2006
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1564414/
https://www.ncbi.nlm.nih.gov/pubmed/16919173
http://dx.doi.org/10.1186/1471-2466-6-21
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author Chase, J Geoffrey
Yuta, Toshinori
Mulligan, Kerry J
Shaw, Geoffrey M
Horn, Beverley
author_facet Chase, J Geoffrey
Yuta, Toshinori
Mulligan, Kerry J
Shaw, Geoffrey M
Horn, Beverley
author_sort Chase, J Geoffrey
collection PubMed
description BACKGROUND: A design concept of low-cost, simple, fully mechanical model of a mechanically ventilated, passively breathing lung is developed. An example model is built to simulate a patient under mechanical ventilation with accurate volumes and compliances, while connected directly to a ventilator. METHODS: The lung is modelled with multiple units, represented by rubber bellows, with adjustable weights placed on bellows to simulate compartments of different superimposed pressure and compliance, as well as different levels of lung disease, such as Acute Respiratory Distress Syndrome (ARDS). The model was directly connected to a ventilator and the resulting pressure volume curves recorded. RESULTS: The model effectively captures the fundamental lung dynamics for a variety of conditions, and showed the effects of different ventilator settings. It was particularly effective at showing the impact of Positive End Expiratory Pressure (PEEP) therapy on lung recruitment to improve oxygenation, a particulary difficult dynamic to capture. CONCLUSION: Application of PEEP therapy is difficult to teach and demonstrate clearly. Therefore, the model provide opportunity to train, teach, and aid further understanding of lung mechanics and the treatment of lung diseases in critical care, such as ARDS and asthma. Finally, the model's pure mechanical nature and accurate lung volumes mean that all results are both clearly visible and thus intuitively simple to grasp.
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spelling pubmed-15644142006-09-14 A novel mechanical lung model of pulmonary diseases to assist with teaching and training Chase, J Geoffrey Yuta, Toshinori Mulligan, Kerry J Shaw, Geoffrey M Horn, Beverley BMC Pulm Med Technical Advance BACKGROUND: A design concept of low-cost, simple, fully mechanical model of a mechanically ventilated, passively breathing lung is developed. An example model is built to simulate a patient under mechanical ventilation with accurate volumes and compliances, while connected directly to a ventilator. METHODS: The lung is modelled with multiple units, represented by rubber bellows, with adjustable weights placed on bellows to simulate compartments of different superimposed pressure and compliance, as well as different levels of lung disease, such as Acute Respiratory Distress Syndrome (ARDS). The model was directly connected to a ventilator and the resulting pressure volume curves recorded. RESULTS: The model effectively captures the fundamental lung dynamics for a variety of conditions, and showed the effects of different ventilator settings. It was particularly effective at showing the impact of Positive End Expiratory Pressure (PEEP) therapy on lung recruitment to improve oxygenation, a particulary difficult dynamic to capture. CONCLUSION: Application of PEEP therapy is difficult to teach and demonstrate clearly. Therefore, the model provide opportunity to train, teach, and aid further understanding of lung mechanics and the treatment of lung diseases in critical care, such as ARDS and asthma. Finally, the model's pure mechanical nature and accurate lung volumes mean that all results are both clearly visible and thus intuitively simple to grasp. BioMed Central 2006-08-20 /pmc/articles/PMC1564414/ /pubmed/16919173 http://dx.doi.org/10.1186/1471-2466-6-21 Text en Copyright © 2006 Chase et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Technical Advance
Chase, J Geoffrey
Yuta, Toshinori
Mulligan, Kerry J
Shaw, Geoffrey M
Horn, Beverley
A novel mechanical lung model of pulmonary diseases to assist with teaching and training
title A novel mechanical lung model of pulmonary diseases to assist with teaching and training
title_full A novel mechanical lung model of pulmonary diseases to assist with teaching and training
title_fullStr A novel mechanical lung model of pulmonary diseases to assist with teaching and training
title_full_unstemmed A novel mechanical lung model of pulmonary diseases to assist with teaching and training
title_short A novel mechanical lung model of pulmonary diseases to assist with teaching and training
title_sort novel mechanical lung model of pulmonary diseases to assist with teaching and training
topic Technical Advance
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1564414/
https://www.ncbi.nlm.nih.gov/pubmed/16919173
http://dx.doi.org/10.1186/1471-2466-6-21
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