Surgery – Diagnostic testing – Measuring or detecting nonradioactive constituent of body...
Reexamination Certificate
2008-05-20
2008-05-20
Winakur, Eric (Department: 3768)
Surgery
Diagnostic testing
Measuring or detecting nonradioactive constituent of body...
C600S323000
Reexamination Certificate
active
11341421
ABSTRACT:
In order to measure a transit time of oxygen in blood, at least one sensor is attached to at least one prescribed position on a subject. The sensor is adapted to detect a light absorption of arterial blood at the prescribed position. An oxygen saturation of the arterial blood at the prescribed position is calculated based on the detected light absorption. An amount of oxygen inspired into the subject is varied at a reference time point. A change in the calculated oxygen saturation at the prescribed position is detected. A time period from the reference time point to a time point at which the oxygen saturation changes is measured.
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Kobayashi Naoki
Kubota Hiroshi
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