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The objective of this project, started by David Van Sickle in January 2009, is to develop an open source, low cost, and clinically functional spirometer that measures lung flows and volumes. We envision a first generation device that connects to a computer via a USB port and guides and coaches patients through the testing using digital audiovisual clips.
As the test is performed, a combination of client and server software would graphically display flow and volume data, monitor and evaluate the quality of the maneuver, and instruct the subject when his/her performance needs to be corrected. The software would also carry out some rudimentary analysis and interpretation using algorithms available from the American Thoracic Society.
The idea is to develop a tool that would be widely affordable and would standardize pulmonary function measurements by delivering the same instruction and coaching across sites for the first time.
Visit our Spring 2009 and Summer 2009 pages and openspirometry.org for details of previous accomplishments
Team members from left to right: Andrew Bremer, Jeremy Glynn, Jeremy Schaefer, Andrew Dias
Building new prototype, working on software to display data.
| Week | Reporting Period Beginning | Activities |
|---|---|---|
| 1 | September 4 | Assigned team roles, set up meeting with client |
| 2 | September 11 | Met with client, met with Amit Nimunkar, researched IDR procedure |
| 3 | September 18 | Tested new spirometer prototype, additional calculations, researched cordierite substrate for capillary system, chose EAGLE software to make PCB layout |
| 4 | September 25 | Obtained ceramic capillaries, PCB development, worked on getting Java data into Adobe AIR |
| 5 | October 2 | Attended Flash tutorial, worked on PIC microcontroller programming and getting Java data into AIR, cut cordierite sample |
| 6 | October 9 | Worked on midsemester presentations |
| 7 | October 16 | Completed PCB layouts, contacting Corning manufacturer, worked on Java/AIR communication |
| 8 | October 23 | Attended Actionscript tutorial, compiled PIC program that handles I2C protocol, developed abstract for 2010 ATS conference |
| 9 | October 30 | Revised design to eliminate FTDI chip, reducing complexity; received 1.5" cordierite capillaries |
| 10 | November 6 | Tested 1.5" cordierite which showed good pressure/flow linearity, PIC and Merapi work, began calibration calculations |
| 11 | November 13 | |
| 12 | November 20 | |
| 13 | November 27 | |
| 14 | December 4 | |
| 15 | December 11 |
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Product Design Specifications (Oct 20 2009, 117 kb) |
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Midsemester Presentation (Oct 20 2009, 745 kb) |
