| 摘要 |
A method and apparatus for non-invasively determining a blood oxygen saturation level within a subject's tissue is provided. A spectrophotometric sensor is operable to transmit light into the subject's tissue, and to sense the light. The method comprises the steps of: sensing the subject's tissue using the sensor, and producing signal data from sensing the subject's tissue; processing the signal data, including accounting for specific physical characteristics of the particular subject's tissue being sensed; calibrating the sensor with signal data generated from sensing the particular subject's tissue; and determining the blood oxygen saturation level within the subject's tissue using the calibrated sensor. The sensor that has been calibrated in a "subject dependent" manner is able to provide a more accurate assessment of the subject's blood oxygen saturation level within the tissue. |
