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Signalprocessing in transmission pulse hemometry.

A Sánchez1, O Abdallah, J Schöchlin

  • 1FZI Forschungszentrum Informatik, Karlsruhe, Germany.

Biomedizinische Technik. Biomedical Engineering
|December 6, 2002
PubMed
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This study presents a novel non-invasive pulse oximeter. It accurately measures total hemoglobin concentration and fractional oxygen saturation, improving upon existing devices.

Area of Science:

  • Biomedical Engineering
  • Physiological Measurement

Background:

  • Adequate oxygen supply is crucial for human function.
  • Commercial pulse oximeters measure functional oxygen saturation but exclude MetHb and COHb.
  • Total hemoglobin concentration is typically measured invasively.

Purpose of the Study:

  • To develop a non-invasive pulse oximeter.
  • To determine total hemoglobin concentration photometrically.
  • To measure fractional oxygen saturation and pulse rate accurately.

Main Methods:

  • Utilized the Lambert-Beer law to process transmitted light signals.
  • Developed a photometric method for determining total hemoglobin concentration.
  • Integrated pulse rate measurement.

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Main Results:

  • Successfully developed a non-invasive pulse oximeter.
  • Enabled photometric determination of total hemoglobin concentration.
  • Accurate measurement of fractional oxygen saturation and pulse rate.

Conclusions:

  • The developed pulse oximeter offers a non-invasive alternative for assessing oxygen saturation.
  • This device provides a more comprehensive assessment by including total hemoglobin concentration.
  • Potential for improved patient monitoring and diagnostics.