Skip to main content

Table 3 Maximum pressure drop, flow rates and end-tidal volumes achieved using fixed 3D-printed flow restrictors in the inspiratory circuit

From: A computational fluid dynamics assessment of 3D printed ventilator splitters and restrictors for differential multi-patient ventilation

Restrictor diameter D [mm]

2.0

3.0

4.0

None

 Peak pressure drop

15.22

11.21

7.40

0.11

 (Simulated) [cmH2O]

    

 Peak flow rate

6.6

14.0

20.4

30.4

 (Simulated) [L ·min-1]

    

End tidal volume [mL]

    

 Healthy lung, restricted port

    

 C = 0.1 L ·cmH2O-1

123

245

362

503

 Stiff lung, unrestricted port

    

 C = 0.2 L ·cmH2O-1

448

450

450

454