Fig. 1

Vent-Lock ventilator multiplexing 1 + n(1) circuit and 3DP components. Our 1 + n(1) circuit proposes having a standard patient with minimal features, thus are ventilated per ventilator settings. Additional patients added to the circuit will be considered n(1), and will have variable flow and PEEP as controlled by circuit components. Please note that all patients, regardless of standard or variable, have one-way (check) valves and filters