Faculty Advisor

Mendelson, Yitzhak


We present a project that focused on creating a wearable medical device that uses pho- toplethysmography and pulse oximetry technology. The pulse oximeter sensor holder was designed to be mounted on the chest using adhesive tape and a threaded holder that the cover turns into to increase pressure on the sensor. Our holder can apply a pressure range of 0-51 mmHg. The range for greatest PPG amplitudes from the chest is 10-30 mmHg. The reflectance type pulse oximeter housed in the holder was able to read pulse rate to within approximately ±1.35 BPM compared to the EKG heart rate signal. Industry standards for finger pulse oximeters read pulse rate with ±3 BPM accuracy. The device was not tested for oxygen saturation due to time constraints and IRB approved testing.


Worcester Polytechnic Institute

Date Accepted

April 2017


Biomedical Engineering

Project Type

Major Qualifying Project



Advisor Department

Biomedical Engineering