Calibrated optical oximeter probe
DCFirst Claim
1. An oximeter probe system comprising:
- a first light emitting means emitting light having a first known wavelength value;
means for sensing the light emitted by said first light emitting means;
means for detachably wiring the probe to the oximeter and for providing communication of electrical signals between the probe and the oximeter;
encoding means for providing signals to the oximeter which are indicative of the known wavelength of said first light emitting means; and
decoding means responsive to said encoded signals for selecting appropriate calibration coefficients for use in calculating oxygen saturation based upon the known wavelength of said first light emitting means.
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Abstract
A 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.
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Citations
7 Claims
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1. An oximeter probe system comprising:
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a first light emitting means emitting light having a first known wavelength value; means for sensing the light emitted by said first light emitting means; means for detachably wiring the probe to the oximeter and for providing communication of electrical signals between the probe and the oximeter; encoding means for providing signals to the oximeter which are indicative of the known wavelength of said first light emitting means; and decoding means responsive to said encoded signals for selecting appropriate calibration coefficients for use in calculating oxygen saturation based upon the known wavelength of said first light emitting means. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification