Current Directions in Biomedical Engineering (Sep 2017)

Non-invasive multi wavelengths sensorsystem for measuring carboxy-and methemoglobin

  • Gewiß Helge,
  • Timm Ulrich,
  • Kraitl Jens,
  • Brock Beate,
  • Ewald Hartmut

DOI
https://doi.org/10.1515/cdbme-2017-0092
Journal volume & issue
Vol. 3, no. 2
pp. 441 – 444

Abstract

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Standard pulse oximetry only measures the functional derivatives oxyhemoglobin (O2Hb) and deoxyhemoglobin (HHb) to calculate the arterial oxygenation. However, the two dysfunctional hemoglobin derivatives carboxyhemoglobin (COHb) and methemoglobin (MetHb) are of much interest. The gold standard detecting abnormal concentration of COHb or MetHb is the blood gas analysis (BGA). In this paper a non-invasive method for measuring these derivatives and a setup for validation is presented.

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