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Measured vital signs

 
 

 
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Easily attached to the patient with a medical grade adhesive

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EASY TO PLACE

Easily attached to the patient with a medical grade adhesive

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SINGLE USE

The sensor is disposable and can safely be thrown away after use

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3 DAY BATTERY LIFE

A single sensor is capable of capturing vital signs for up to 3 days

 

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The underlying technology

The Evo sensor is based on noninvasive photoplethysmography (PPG) technology. In the simplest terms, it can be described as shining light into the skin and measuring the amount of light scattered by blood flow. The response gives us a peak into the dynamic processes that are constantly taking place inside the body.

By shining light from a single wavelength, you'll be able to measure vital signs like heart rate and heart rate variability (HRV). But there is more information available, for example can oxygen saturation (SpO2) be determined from the ration between red and infrared (IR) light. The Evo sensor is for this reason based on specific wavelengths in the spectrum of red and IR.

PPG measurements are based on very small changes in the returned signal, approximately 1% of the signal contains the interesting detailes. Because of this, PPG data can often be corrupted by motion artefacts. The Evo sensor uses modern signal processing combined with a precise accelerometer to detect and  drastically reduced the impact of motion.