ANSWERS: 1
  • Bio engineers Takuo Aoyagi and Michio Kishi invented the pulse oximeter machine in early 1970.. They developed the same concept independent of each others work. The pulse oximeter monitors blood oxygen levels of the hemoglobin. A sensor is put on a fingertip or other body part to take the readings

    Source:

    Oximetry

    UMTB

    Boston globe

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