Tidal Volume Delivery From ICU Ventilators at BTPS Conditions: A Bench Study

DuChateau, Paul; Guérin, Claude

doi:10.4187/respcare.01915

Cited by 8 publications

(2 citation statements)

References 9 publications

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“…The filter reduces the concentration of released air contaminants in the environment and thus, the overall infection risk for the medical staff. As a patient model, we use an artificial lung (Test Lung 190, Maquet) that has a reported compliance and linear resistance value of 16 and 20 , respectively 37 .…”

Section: Methodsmentioning

confidence: 99%

Repurposing CPAP machines as stripped-down ventilators

Nguyen

Kesper

Kräling

et al. 2021

Sci Rep

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The worldwide shortage of medical-grade ventilators is a well-known issue, that has become one of the central topics during the COVID-19 pandemic. Given that these machines are expensive and have long lead times, one approach is to vacate them for patients in critical conditions while patients with mild to moderate symptoms are treated with stripped-down ventilators. We propose a mass-producible solution that can create such ventilators with minimum effort. The central part is a module that can be attached to CPAP machines and repurpose them as low-pressure ventilators. Here, we describe the concept and first measurements which underline the potential of our solution. Our approach may serve as a starting point for open-access ventilator technologies.

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Section: Methodsmentioning

confidence: 99%

Repurposing CPAP machines as stripped-down ventilators

Nguyen

Kesper

Kräling

et al. 2021

Sci Rep

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“…Besides applying an algorithmic correction, another solution is to have heated flow sensors. Multiple ventilators [ 7 ] have heated flow sensors, but most of them only at the expiratory limb and not at the inspiratory limb. However, heated flow sensors [ 8 ] also have technical issues [ 9 ].…”

Section: Tidal Volume In Pediatric Ventilation: Technical Challenges and Clinical Consequencesmentioning

confidence: 99%

Tidal Volume in Pediatric Ventilation: Do You Get What You See?

Koomen

Nijman

Nieuwenstein

et al. 2021

JCM

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Mechanical ventilators are increasingly evolving into computer-driven devices. These technical advancements have impact on clinical decisions in pediatric intensive care units (PICUs). A good understanding of the design of mechanical ventilators can improve clinical care. Tidal volume (TV) is one of the corner stones of ventilation: multiple technical factors influence the TV and, thus, influence clinical decision making. Ventilator manufacturers make various design choices regarding the phase, site and conditions of TV measurement as well as algorithmic processing choices. Such choice may impact the measurement and subsequent display of TV. A software change of the TV measuring algorithm of the SERVO-i® (Getinge, Solna, Sweden) at the PICU of the University Medical Centre Utrecht was studied in a prospective cohort. It showed, as example, a clinically significant impact of 8% difference in reported TV. Design choices in both the hardware and software of mechanical ventilators can have a clinically relevant impact on the measurement of tidal volume. In our search for the optimal TV for lung-protective ventilation, such choices should be taken into account.

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