Calibrated optical oximeter probe
Patent 4621643 Issued on November 11, 1986. Estimated Expiration Date: 
February 5, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 5, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2706927 3638640 3704706 3720199 3819276 3833864 3847483 3880006 3910701 Photoelectric oximeter InventorsAssigneeApplicationNo. 06/827478 filed on 02/05/1986US Classes:600/331, Calibrated250/252.1, CALIBRATION OR STANDARDIZATION METHODS356/41, Oximeters600/479Cardiovascular testingExaminersPrimary: Howell, Kyle L.Assistant: Hanley, John C. International ClassesA61B 5/00 (20060101)G01N 21/31 (20060101) AbstractA probe apparatus for use with an optical oximeter is disclosed. A pair of light emitting diodes emit light of known narrow wavelengths through an appendage of a patient onto a photosensor. A resistor of coded known resistance is used to enable the oximeter to calculate the co-efficient of extinction of the wavelengths of the LEDs. The resistor, LEDs and photosensor are mounted on self-attaching hook and eye tape for mounting the probe onto the appendage of the patient. The probe is detachably wired to the oximeter, rendering the probe completely disposable. The oximeter is programmed at the factory to calculate the co-efficients of extinction of any LEDs which may be encountered in a series of disposable probes. From the co-efficients of extinction, the pulse rate and degree of arterial oxygen saturation is computed and displayed by the oximeter.Other References
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