Author: Andrew R Plummer; Jonathan l du Bois; Siu Man Lee; Patrick Magee; Jens Roesner; Harinderjit S Gill
Title: The BathRC model: a method to estimate flow restrictor size for dual ventilation of dissimilar patients Document date: 2020_4_17
ID: cnkldzw9_22
Snippet: This is a highly simplified model with four terms for single patient ventilation: linear resistance and compliance for ventilator tubing system, and linear resistance and compliance for the patient. Different parameters can be used for inspiration and expiration phases, so there up to eight parameters per patient. The benefit of the RC model is that simple calculations are possible on how patient R and C variation will affect tidal volume, and ho.....
Document: This is a highly simplified model with four terms for single patient ventilation: linear resistance and compliance for ventilator tubing system, and linear resistance and compliance for the patient. Different parameters can be used for inspiration and expiration phases, so there up to eight parameters per patient. The benefit of the RC model is that simple calculations are possible on how patient R and C variation will affect tidal volume, and how this might be corrected by adding a restrictor valve (or possibly other modifications). One scenario could be to calculate what inspiration restriction is required to operate with an increased ventilator pressure (necessitated by ventilator sharing) without increasing the patient's tidal volume undesirably.
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