22 March 2013 Photometric sensor system for a non-invasive real-time hemoglobin monitoring
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Hemoglobin (Hb) is an important component of red blood cells. The primary function of Hb is the transport of oxygen from the lungs to the tissue and carbon dioxide back to the lungs. The Hb concentration in human blood is an important parameter in evaluating the physiological status of an individual and an essential parameter in every blood count. Invasive methods are used to measure the Hb concentration, whereby blood is taken from the patient and subsequently analyzed. Apart from the discomfort of drawing blood samples, an added disadvantage of this method is the delay between the blood collection and its analysis, which does not allow real time patient monitoring in critical situations. A non-invasive method allows pain free continuous on-line patient monitoring with minimum risk of infection and facilitates real time data monitoring allowing immediate clinical reaction to the measured data.
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Ulrich Timm, Ulrich Timm, Jens Kraitl, Jens Kraitl, Kirstin Schnurstein, Kirstin Schnurstein, Hartmut Ewald, Hartmut Ewald, "Photometric sensor system for a non-invasive real-time hemoglobin monitoring ", Proc. SPIE 8572, Advanced Biomedical and Clinical Diagnostic Systems XI, 857204 (22 March 2013); doi: 10.1117/12.2001421; https://doi.org/10.1117/12.2001421

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