OrSense is a medical device company that develops and commercializes noninvasive monitoring technologies for continuous and spot measurements of hemoglobin, oxygen saturation, glucose, and other blood parameters.

The companys patented SpectOLight technology, known as occlusion spectroscopy, uses a non-invasive optical measurement platform combined with a finger-attached, ring-shaped sensor probe.

The pressure applied by the sensor temporarily occludes the blood flow in the finger, creating new blood dynamics that generate a unique, strong optical signal, yielding a high signal-to-noise ratio that is wholly blood specific.

Analysis of the signal provides the sensitivity necessary to measure hemoglobin, pulse rate, oxymetry (even under severe low perfusion levels), and other analyte concentrations.