Manual and automatic probe calibration

摘要

Embodiments of the present disclosure include an optical probe capable of communicating identification information to a patient monitor in addition to signals indicative of intensities of light after attenuation by body tissue. The identification information may indicate operating wavelengths of light sources, indicate a type of probe, such as, for example, that the probe is an adult probe, a pediatric probe, a neonatal probe, a disposable probe, a reusable probe, or the like. The information could also be utilized for security purposes, such as, for example, to ensure that the probe is configured properly for the oximeter, to indicate that the probe is from an authorized supplier, or the like.

主权项

1. In a pulse oximetry system which uses interchangeable sensors having a plurality of light emitting devices, a method of operating the sensor, the method comprising:
driving a first drive line of a sensor at a first voltage level in order to read, using a patient monitoring device, operating characteristics of the sensor coded on a semiconductor device housed in the sensor during an initialization period; driving the first drive line of the sensor at a second voltage level in order to drive light emitting devices of the sensors during a measurement period.