TestReport: Measurement of expired volume

CohenLabPrinceton / pvp

Raspberry pi code for controlling the rapid-deploy critical care ventilator

GNU General Public License v3.0

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TestReport: Measurement of expired volume #104

Closed CohenLabPrinceton closed 3 years ago

CohenLabPrinceton commented 4 years ago

[ ] If VENTILATORY SUPPORT EQUIPMENT is equipped with MONITORING EQUIPMENT for indicating the volume expired through the PATIENT‐CONNECTION PORT, the accuracy shall be disclosed in the instructions for use.

We need to quantify the tidal volume accuracy. @SophieDvali ?

juliennelachance commented 4 years ago

This is a good question for Sophie- who has the D-Lite data.

SophieDvali commented 4 years ago

I can calculate this using the flow data from the mfc. This is asking for just the error in the flow right since the tidal volume is just flow times the expiration time?

SophieDvali commented 4 years ago

When calculating just the error in the flow (from the dlite) I get a fractional error of around 5% which is reasonable and also consistent with what Philippe gets for the physics flow sensor. However, if I use error prop to get the error in the VT it becomes much higher (like 70%). I feel like there might be something wrong here.