Open Spirometry Network

Although our “cocktail straw” Fleisch spirometer was a large design advancement, the internal diameter of the straws was not small enough to achieve laminar flow through the capillaries. After some fluid mechanics calculations, we discovered that the inner diameter of the capillaries will have to be <1.2 mm to produce laminar flow through our spirometer.
We [...]

Please click the link to find our OpenSpirometry_software_specification.
We would like to send this document to a software developer who could help us begin to code it. This document is only the first draft, and any input would be appreciated and would result in better software being produced.  Please comment if you have any suggestions, or [...]

Design Updates

We revised our design from the Venturi design, and we now need to decide whether to build a Lilly or Fleisch type spirometer. Both are currently used in commercial models. We are examining the pros and cons of each design and hope to have a basic prototype of each built by the end of [...]

Spirometry is effort dependent and skills such as understanding, attention, coordination, and cooperation with the person administering the test are required for accurate measurements. To help instruct and coach kids during spirometry, incentive screens have been designed to visually motivate their best effort and to encourage consistency from one measurement to the next. Often they [...]

The BME students have been working hard for a little more than one month now and are making good progress. Last week, they began testing various differential pressure sensors in simple systems like the one you see here.
They’ve started preparing for their upcoming mid-semester presentation on the project which will take place Friday afternoon. I hope [...]