Piezoelectric-Based Monitoring of Restless Legs Syndrome (RLS)
Restless Legs Syndrome (RLS) is a very common disease that affects millions of people each year; however, there is not an effective way to monitor it. By creating a device that is strapped to an individual’s leg, RLS can be easily monitored. This device measures the amount of vibration a person gives off while uncontrollably shaking their leg. A piezoelectric cantilever beam was selected to monitor these vibrations and a protective housing was designed to comfortably fit around a human leg. The device was fabricated using 3D printing techniques and was tested by machine to ensure its operation. A variable speed Scotch Yoke apparatus with a displacement of 10 mm which oscillates at different rates was used for testing the device. By wiring the developed sensor, and a reference accelerometer to a Data Acquisition Card, comparisons were made between the true movement and the measured voltage of the sensor. The piezoelectric cantilever beam was then strapped on a volunteer to attempt to replicate the results. The experimental results showed a consistent frequency output with the reference one and can be used as a reference for monitoring restless legs syndrome.
KeywordsPiezoelectric Restless legs syndrome (RLS) Piezoelectric monitoring 3D printing Biomedical engineering Data Acquisition Card (DAQ Card)
We thank Thomas Kunkel for assistance in 3D printing of the prototype housing.