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Esophageal strictures form in the esophagus from built up scar tissue caused by stomach acid entering the esophagus. A previous group designed a device that can measure both the volume of the esophagus at the stricture and the tissue compliance. The device must now be refined to make it viable for use in a hospital setting. This includes modifying a syringe gun to fit two syringes, measuring the accuracy of the pressure sensors, and continued testing. Simplicity, cost, and patient concern must be taken into account. The end goal is to have a completed device and apply for a patent for the device.
At the end of the semester, we have achieved some testing data that show positive results for the future. Using mock esophagi to test the device, which consists of a blood pressure sensor and a linear potentiomter, we were able to generate multiple compliance curves, including one in which a perforation can be seen. From this, future testing and the addition of an alarm can be implemented to allow this device to be used clinically.
| Week | Reporting Period Beginning | Activities |
|---|---|---|
| 1 | January 25 | Team Roles, Gave new members background on the project. |
| 2 | February 1 | Client Meeting |
| 3 | February 8 | Received the new sensor, Worked on our circuit |
| 4 | February 15 | Made latex esophagi for testing, continued to work on troubleshooting our pressure sensor |
| 5 | February 22 | Meeting with Amit Nimunkar, Brainstormed ideas for Midsemester presentation |
| 6 | February 29 | Observed endoscopies performed by our client, contacted pressure sensor company about our troubles with the sensor |
| 7 | March 7 | Midsemester Presentation, Midsemester Paper |
| 8 | March 14 | Contacted pressure sensor company, received adhesive |
| 9 | March 21 | Spring Break |
| 10 | March 28 | Continued talking with pressure sensor company, developed metal junction idea, installed LabVIEW drivers |
| 11 | April 4 | Researched new sensor, obtained metal junction for sensor |
| 12 | April 11 | Began using blood pressure sensor, A/D converter troubleshooting |
| 13 | April 18 | Testing, Blood pressure sensor amplification circuit, LabVIEW circuit |
| 14 | April 25 | Testing, Poster presentation |
| 15 | May 2 | Final meeting with client and advisor, final paper |
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PDS (Feb 15 2008, 25 kb) |
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Midsemester Presentation (Mar 6 2008, 2447 kb) |
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Midsemester Report (Mar 12 2008, 143 kb) |
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Final Poster Presentation (May 2 2008, 6700 kb) |
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Final Paper (May 12 2008, 359 kb) |
