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The technology platforms used to develop HTI's medical device products include optical metrology, and specifically, near infrared spectroscopy. Coupled with HTI's world leadership in precision engineering, these technologies provide a powerful foundation for innovation in health care.

Near Infrared Spectroscopy
Near infrared spectroscopy (NIRS) uses
specific, calibrated wavelengths of near infrared
light to noninvasively illuminate the tissue
below a sensor placed on the skin. (more)

The InSpectra StO2 Tissue Oxygenation Monitor works by sending light through the skin into underlying tissues and taking measurements of the light after it travels through the tissues. (more)
StO2: Tissue Oxygen Saturation
StO2 is the quantification of the ratio of oxygenated hemoglobin to total hemoglobin in the microcirculation of the volume of illuminated tissue, and is an absolute number. (more)

The InSpectra™ StO2 Tissue Oxygenation Monitor provides a direct, absolute measurement of hemoglobin oxygen saturation in tissue (StO2), providing trauma teams the ability to measure tissue oxygenation and monitor it during resuscitation. It is the only tissue oxygenation monitor designed for trauma environments. The InSpectra StO2 Tissue Oxygenation Monitor uses near infrared light to illuminate tissue, and then analyzes the returned light to produce a quantitative measurement of oxygen saturation in the tissue's microcirculation.

The StO2 Trauma Study researched the role that tissue oxygen saturation monitoring could play in hemorrhagic shock and resuscitation. Study results demonstrate that StO2 measurements less than 75% may indicate serious hypoperfusion in trauma patients and that StO2 functions as well as base deficit in indicating hypoperfusion in trauma patients.