Multi-wavelength incremental absorbence oximeter
Blood constituent measuring device and method
Multi-wavelength oximeter having a means for disregarding a poor signal Patent #: 4714341
ApplicationNo. 154929 filed on 02/11/1988
US Classes:356/41, Oximeters128/205.12, Means for removing substance from respiratory gas600/323Oxygen saturation, e.g., oximeter
ExaminersPrimary: McGraw, Vincent P.
Attorney, Agent or Firm
International ClassG01N 033/49
AbstractA pulse oximeter having a sensor responsive to light transmitted through an area of blood flow which is optically absorbed by hemoglobin for producing a pulsatile waveform indicating the current pulsatile component of blood flow. A process waveform is created for tracking the process of the oximeter during its determination of a maximum and a minimum value of the pulsatile waveform, which is used for calculating the saturation of oxygen.