|size (curr.)||32471 kB|
|license||Creative Commons Attribution Share Alike 4.0 International|
splitvent - Designs and Tools to help multiply available Ventilators
This project includes designs for 3D-printed ventilator “Y” splitters, 3D printed flow restrictors, and Raspberry Pi software to monitor per-patient respiratory flow with a Sensirion SFM-3x00 series inline flow sensor
We are releasing our work early and often, and in a form that we hope interested individuals can reproduce.
Contributors to this project submit their work under a Creative Commons ShareAlike 4.0 license. See
LICENSE.md for more details
- 2020-03-29 7:30PM EST - Raspberry pi image now available for download
SplitVent Daily Update March 30 - Showcase improvements to the UI, a 3D printed cap to the flow sensor, revisions to valves including larger handles that make it easier to operate.
SplitVent System Description March 29 - Demonstrate how restricter valves and flow monitoring can allow quality vantilation to multiple patients with one ventilator.
3D Printing Models
Models have been printed with FDM printers using PLA or PETG.
TPU can be used for an o-ring.
Other materials such as Med610, Dental SG/LT, and Teeth A2 can be used and should be considered for sterilization purposes.
Models printed with FDM should use 10-20% infill with supports touching buildplate.
Fabricate a cable to connect to the sensor’s connector surface contact lands.
Connect your RPi to the Sensirion sensor as shown in the image below:
Install the SD card into the RPi
Plug in an HDMI monitor
Power on the RPi
Hit ctrl-c a few times to stop the console app
run “git pull” to get latest GUI changes
You’ll see a UI like this:
Thanks to the following contributors:
- Tobin Greensweig
- Nate Surls
- Paul Holland
- Timothy Nisi
- Paul Yearling
- Brian Overshiner
- Joe Koberg
- Dan Lash