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The goal of the project is to design a new light source used in Otolaryngological procedures to view vocal cord motion to aid in the repair of damaged vocal cords. The light source is a strobe light and uses the basic principle of sampling frequency to view vocal cord vibration. The concept of sampling is very well demonstrated by measuring angular speed of a rotating wheel in a dark room with a stroboscope. A rotating wheel, for example, will be sampled (seen) when the strobe light fires. If the strobe firing (or blinking) frequency is the same as the wheel's rotational frequency, the wheel will be seen at exactly the same position, and it will appear that the wheel is stationary, does not rotate at all. If the strobe firing frequency is adjusted slightly from the wheel's rotational frequency, the wheel will be seen as rotating in slow motion. This concept is applied to view vocal cord motion in slow motion to assess damage. The light source currently used is large, immobile, and loud. The new light source should be smaller, portable, and produce significantly less noise while retaining other important properties such as high lumination, low temperature, and adjustable frequency.
Courtesy www.kayelemetrics.com
Team Members:
Kevin Kinney and Nick Anders - Leader
Eric Miller and Stacey Hoebel - BSAC
Erik Birkeneder and Patrick Hill- Communications
Christopher Valley and Paul Heideman- BWIGAdvisor:
Clients:
Doug Montequin
Clinical Instructor/Research Scientist
Dept of Surgery, Division of Otolaryngology
Medical School
University of Wisconsin
MONTE@surgery.wisc.eduDiane Bless, Ph.D.
Dept of Surgery, Division of Otolaryngology
Medical School
and Dept. of Communicative Disorders
University of Wisconsin
bless@surgery.wisc.edu
Thursday, December 12, 2002::
The LED strobing light source prototype is completed as is the final design report and presentation. All testing is finished and the group is ready to present the prototype tomorrow.
Summary:
- Prototype and testing completed
- Final Design Report completed
- Poster presentation completed
- Group is ready to present
| Date | Goals |
| 11/19/02 | Obtain LED's from BME office |
| 11/20/02 | Test LED's in 555 timer circuit and match light output with current stroboscope |
| 11/20/02 | Obtain easily variable resistor for frequency adjustment |
| 11/21/02 - 11/25/02 | Finalize LED and circuitry for prototype |
| 11/26/02 - 11/29/02 | Design and build enclosure for light, circuitry, and attachment to endoscope. |
| 11/30/02 | Finalize prototype |
| 11/30/02 - 12/02/02 | Test prototype (varying frequency, strobe brightness, etc.) |
| 12/13/02 | Poster presentation and Final Design Report |
Progress Report #7 (11/12/02)
Progress Report #8 (11/19/02)
Progress Report #9 (11/26/02)
Progress Report #10 (12/03/02)
Final Poster Presentation (.ppt, 27.4 MB) - 12/12/02
Final Design Report (.pdf) - 12/12/02
| Kevin Kinney and Nick Anders | |
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| Erik Birkeneder and Patrick Hill | |
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| Eric Miller and Stacey Hoebel | |
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| Chris Valley and Paul Heideman | |
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Nick Anders - nanders@wisc.edu
Erik Birkeneder - ejbirkeneder@wisc.edu
Paul Heideman - ppheideman@students.wisc.edu
Patrick Hill - patrickhill@wisc.edu
Stacey Hoebel - sjhoebel@students.wisc.edu
Kevin Kinney - krkinney@students.wisc.edu
Eric Miller - ejmiller2@students.wisc.edu
Chris Valley - ccvalley@wisc.edu
