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Our task is to create a device that detects and measures the vasoconstriction phase in sleep apnea, which is a function of pulse transit time. The device will be a software program capable of detecting and measuring changes in pulse transit using an ECG signal and Pulse oximeter signal. The device will interface the current system in use called made by Flaga (Medcare). This algorithm which we develope will be used in sleep studies and should reject incorrect information due to motion artifact.
Below is a picture of the team.
We have met with Steve Weber who is the technical consultant for the sleep lab. He was able to give a good idea of the interface for the Flaga system and a better idea of our task. Our next step is to contact Flaga to get information on the .epf format of the files and exporting data in real time.
| Week | Reporting Period Beginning | Activities |
|---|---|---|
| 1 | September 8 | Independent research; Set up a meeting time with client, Dr. Green |
| 2 | September 15 | Met with Dr. Green; Independent research, PDS, and reading of suggested materials |
| 3 | September 22 | Met with Steve Weber to recieve technical information on Flaga system and system data |
| 4 | September 29 | Met with client(Dr. Green); Talk about alternative designs; contact Flaga |
| 5 | October 6 | Spoke with technical support to access feasbility of real data capture |
| 6 | October 13 | Complete detailed design specification, possible work on prototype, work on midsemester presentation, |
| 7 | October 20 | Worked on integrating edf data with matlab, designated positions, worked on hardware options |
| 8 | October 27 | worked on ecg and pusle oximeter circuits. Worked on MatLab code and real time solution |
| 9 | November 3 | worked on ecg and pusle oximeter circuits. Worked on MatLab code and real time solution |
| 10 | November 10 | met with DR. chris green and displayed our current system and received feedback |
| 11 | November 17 | wrote software code to display PTT to user, worked on DAQ interface |
| 12 | November 24 | circuit testing and troubleshooting, Interface programing in Labview |
| 13 | December 1 | worked on presentation slides along with finshing the Labview interface |
| 14 | December 8 | |
| 15 | December 15 |
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PDS version 1.0 (Sep 23 2005, 23 kb) |
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EDF File (Sep 28 2005, 21535 kb) |
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Mid Semester Presentation (Oct 14 2005, 2361 kb) |
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EDF File #1 (Nov 8 2005, 16189 kb) |
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EDF File#2 (Nov 8 2005, 14785 kb) |
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ECG EBM file (Nov 8 2005, 9831 kb) |
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Photoplethysmogram EBM file (Nov 8 2005, 4929 kb) |
