Student name:
Omri Gino
Medical Engineering
Advisor name:
Dr. Zehava Blechman
Portable Non invasive Device for Measuring the
Peripheral Oxygenation Level (Part A)
The obtained signal’s
frequency is based on the
heart rate (~1 1.5 [Hz])
The sensor is sensitive to
changes in oxygenation levels
The measurements were taken from a point on the forehead,
above the eyebrows, which is an ideal location due
to its circulation stems from the internal carotid.
A dedicated circuit was built to activate the sensor,
processing the data and displaying the results.
An android application was developed to display the indication
of SpO
ranges, using traffic light: Green 95% 100%,
Yellow 90% 94%, Red <90% and vibration for risk values.
The signal quality was measured in comparison to the pulse
plethysmograph sensor (BIOPAC system) and tc pO
(PERIMED system).
The prototype that was built is proven to be reliable and sensitive for
changes in the oxygenation levels and allows monitoring of the changes
in heart rate as well as local peripheral vasomotion changes.
The android application has a potential to improve the medical care.
This innovative device has a potential to improve home care for patients
suffer from respiratory diseases who need frequent measurements of
oxygen saturation during wakefulness and sleep.
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