Pressure-Regulated Ventilator Splitting (PReVentS): A COVID-19 Response Paradigm from Yale University

Micha Sam Brickman Raredon; Clark Fisher; Paul Heerdt; Ranjit Deshpande; Steven Nivison; Elaine Fajardo; Shamsuddin Akhtar; Thomas Raredon; Laura E. Niklason

is the (which was not peer-reviewed) The copyright holder for this preprint . pressure-gated inline valves, derived from PEEP valves for bag-valve-mask assemblies, are in the two-patient circuit. Two inspiratory valves control PIP to the two patients. Two expiratory valves control PEEP to the two patients. A "Bias Flow" circuit provides a bypass flow path parallel to the two patient paths to prevent automated ventilator alarming due to high circuit resistance, an artifact which is intrinsic to the placing of in-line pressuregated valves. It should be noted that this bypass circumvents a set of alarms which clinicians may be used to relying on during patient care (see below). . CC-BY-NC-ND 4.0 International license It is made available under a author/funder, who has granted medRxiv a license to display the preprint in perpetuity.