InSpectra™ StO2 Tissue Oxygenation Monitor


The non-invasive InSpectra™ StO2 System:

  • Provides continuous, real-time, and direct measurement of tissue oxygen saturation (StO2), which has proved to be as sensitive an indicator of perfusion status as lactate or base deficit.1
  • Is also portable, rugged and quick to apply — three essential qualities in the world of trauma.
  • Is designed to help your team avoid under- or over-resuscitation.


How the InSpectra™ StO2 System works.

  1. The InSpectra StO2 System illuminates tissue approximately 15mm below the sensor with four calibrated wavelengths of near infrared light.
  2. The returned light is analyzed to produce tissue oxygen saturation (StO2), a direct measurement of oxygen saturation in the microcirculation, where oxygen is exchanged with tissue.

Given the complexity of tissue and its many potential confounding factors, obtaining accurate, reproducible StO2 readings is challenging. The InSpectra StO2 System, with its patented algorithm, accounts for total hemoglobin differences between patients, as well as light-scattering variables such as fat and tissue density.

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Clinical evidence supports monitoring perfusion status with the InSpectra StO2 System.

In a 15-month study involving 383 patients at seven Level I trauma centers, the InSpectra StO2 System proved to function as well as base deficit in indicating hypoperfusion in trauma patients, with the added benefit of being noninvasive, continuous, real time and direct. The results of the minimum InSpectra StO2 reading within the first hour after ED arrival compared favorably for both the MODS and mortality outcomes when compared to maximum base deficit collected within the first hour.1




For further product information please visit: http://www.htibiomeasurement.com/

For trial enquiries: http://www.criticalassist.com.au/contact



1 Cohn SM, Nathens AB, Moore FA, Rhee P, Puyana JC, Moore EE, Beilman GJ. Tissue Oxygen Saturation Predicts the Development of Organ Dysfunction During Traumatic Shock Resuscitation. J Trauma. 2007:62(1):44-55.