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US 6,553,241 B2Granted
Oximeter sensor with digital memory encoding sensor expiration data
AssigneeMallinckrodt Inc.
InventorsPaul D. Mannheimer, Michael E. Fein, Adnan Merchant
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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 sensor expiration data to provide enhanced capabilities for the oximeter sensor. In addition to providing unique data to store in such a memory, the invention describes unique uses of sensor expiration data stored in such a memory.
Claims16
An oximeter sensor comprising:
- a light emitting element;
- a light detecting element;
- and
- a memory device for storing digital data comprising expiration data relating to the oximeter sensor,
- wherein an oximeter monitor coupled to said oximeter sensor briefly drives a high current through said light emitting element to disable said light emitting element after an expiration date stored in the memory device.
2 more elements
A method for storing data in an oximeter sensor, the method comprising
- emitting light from a light emitting element;
- detecting light from the light emitting element using a photodetector;
- storing digitally encoded data in a memory in the sensor, the digitally encoded data comprising expiration data relating to the oximeter sensor;
- and
- driving a high current through said light emitting element to disable said light emitting element after an expiration date stored in the memory.
2 more elements
Dependencies are inferred from the claim text.