Oximeter sensor with digital memory
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United States of America Patent
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Jul 29, 2003
Issued Date -
N/A
app pub date -
Aug 30, 2001
filing date -
Aug 31, 2000
priority date (Note) -
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Abstract
The present invention provides a memory chip for use in an oximeter sensor, or an associated adapter or connector circuit. The memory chip allows the storing of different data to provide enhanced capabilities for the oximeter sensor. In addition to providing unique data to store in such a memory, the present invention describes unique uses of data stored in such a memory. The data stored in the memory chip includes data that can be used by an oximeter to determine if the sensor is adequately attached to the patient, data that indicates sensor assembly characteristics that can be used to correct for variations in optical efficiency, data that can provide compensation for infrared wavelength shifts caused by optical fiber, data relating to additional LEDs in the sensor, data indicating the last time the sensor was moved or disconnected, and data indicating whether the sensor is isolated.
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