Journal: Royal Society Open Science

Article Title: A simulated single ventilator/dual patient ventilation strategy for acute respiratory distress syndrome during the COVID-19 pandemic

doi: 10.1098/rsos.200585

Figure Lengend Snippet: Circuit diagram for the standard splitter. The control module contains a pulse-wave generator with a period appropriate to the respiration rate. It delivers three square signals to control the inspiration, expiration and voltage to the circuit. The R ETT resistors correspond to the endotracheal tubing. R Ex and R Ix correspond to the inflow and outflow tubing resistance. The patient module consists of a resistor (R Lx ) to model upper airway resistance, and a capacitor C Lx , to model the compliance of the lungs and chest wall. Grey boxes outline the splitter (i) and patient submodule (ii). The text ‘sensor’ on the patient blocks indicate that the respective signals are connected to appropriate Simscape sensor blocks, namely current and voltage sensors, to allow for these signals to be logged during simulation.

Article Snippet: We implemented the simulations using MathWork's Simscape (Simulink v4.8) Foundational Blocks and the tests were run via Matlab R2020a scripts and functions.

Techniques: Control