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- Title
A Simple Ventilator Designed To Be Used in Shortage Crises: Construction and Verification Testing.
- Authors
Akerib, Daniel S.; Ames, Andrew; Breidenbach, Martin; Bressack, Michael; Breur, Pieter A.; Charles, Eric; Gaba, David M.; Herbst, Ryan; Ignarra, Christina M.; Luitz, Steffen; Miller, Eric H.; Mong, Brian; Shutt, Tom A.; Wittgen, Matthias
- Abstract
Background: The COVID-19 pandemic has demonstrated the possibility of severe ventilator shortages in the near future. Objective: We aimed to develop an acute shortage ventilator. Methods: The ventilator was designed to mechanically compress a self-inflating bag resuscitator, using a modified ventilator patient circuit, which is controlled by a microcontroller and an optional laptop. It was designed to operate in both volume-controlled mode and pressure-controlled assist modes. We tested the ventilator in 4 modes using an artificial lung while measuring the volume, flow, and pressure delivered over time by the ventilator. Results: The ventilator was successful in reaching the desired tidal volume and respiratory rates specified in national emergency use resuscitator system guidelines. The ventilator responded to simulated spontaneous breathing. Conclusions: The key design goals were achieved. We developed a simple device with high performance for short-term use, made primarily from common hospital parts and generally available nonmedical components to avoid any compatibility or safety issues with the patient, and at low cost, with a unit cost per ventilator is less than $400 US excluding the patient circuit parts, that can be easily manufactured.
- Subjects
COVID-19 pandemic; MECHANICAL ventilators; MICROCONTROLLERS; INTENSIVE care units; MEDICAL equipment
- Publication
JMIR Biomedical Engineering, 2021, Vol 6, Issue 3, p1
- ISSN
2561-3278
- Publication type
Article
- DOI
10.2196/26047