CRISIS ventilator: A 3D printed option for ventilator surge in mass respiratory pandemics - 20/06/22
, Alex Brito b , Xiao-Yue Han a , Evan Fontaine b, Whitney Menzel b , Dennis Child c , Michelle Kenny d , Stephanie Nonas e , Albert Chi b Abstract |
Background |
The COVID-19 pandemic revealed flaws in the stockpiling and distribution of ventilators. In this study, we assessed the durability, sterilizability, and performance of a 3D-printed ventilator.
Methods |
SLS-printed devices were dropped from 1.83 m and autoclaved before evaluation on a COVID-19 simulated patient. The respiratory performance of an extrusion-printed device was studied using a variable compliance model. Ranges of sustainable respiratory rates were evaluated as a function of tidal volume.
Results |
Autoclaving and dropping the device did not negatively impact minute ventilation or PIP for sustained ventilation. Equivalence was significant across all measures except for comparing the autoclaved and dropped with p = 0.06. Extrusion produced ventilators achieved minute ventilation ranging from 4.1 to 12.2 L/min for all simulated compliances; there was an inverse correlation between tidal volume and respiratory rate.
Conclusion |
The CRISIS ventilator is a durable, sterilizable, and reusable 3D-printed ventilator using off-the-shelf materials which could be employed variety of adult lung diseases. Further in-vivo testing is needed.
Le texte complet de cet article est disponible en PDF.Highlights |
• | 3D printed devices enable hospitals to produce just-in-time equipment. |
• | The durable open-access CRISIS ventilator can be printed and sterilized for immediate use. |
• | The CRISIS ventilator can achieve 4–12 L minute ventilation in a variety of disease states. |
• | This work studies a non-FDA approved medical device. |
Keywords : Additive manufacturing, Ventilator, Pandemic
Plan
Vol 224 - N° 1PB
P. 569-575 - juillet 2022 Retour au numéro
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