Parameter compensated pulse oximeter
AssigneeMasimo Corporation
InventorsMassl E. Kiani, Mohamed Diab, Ammar Al-Ali, Walter M. Weber
Life of this patent
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Abstract
A monitor has a primary input responsive to a first property of a tissue site. An uncompensated measurement is determinable from the primary input. A parameter input is responsive to a second property associated with the tissue site, where the first property is dependent upon the second property. The monitor also has a compensation relationship of the primary input, the parameter input and a compensated measurement. A processor is configured to output a compensated measurement from the primary input and the parameter input utilizing the compensation relationship, where the compensated measurement more accurately represents the first property than the uncompensated measurement.
Claims19
A method of monitoring a blood constituent value comprising the steps of:
- determining a relationship between a blood constituent value, a biological property and a compensated measurement of said blood constituent value;
- reading a primary input in communication with a first device responsive to said blood constituent value;
- reading a parameter input in communication with a second device responsive to said biological property;
- wherein said first device comprises an optical device and said second device comprises a non-optical device;
- processing said primary input and said parameter input according to said relationship to as to determine said compensated measurement of said blood constituent value;
- and
- causing an output indicative of said compensated measurement of said blood constituent value to be displayed.
A monitor comprising:
- a first input means in communication with a first device for determining blood constituent values;
- a second input means in communication with a second device for determining biological property values;
- wherein said first device comprises an optical device and said second device comprises a non-optical device;
- a compensation means for determining a relationship between compensated measurement values of said blood constituent, said blood constituent values and said biological property values;
- and
- a processor means for deriving a compensated measurement of said blood constituent values from said first input means, said second input means and said compensation means.
A monitor for compensating a first physiological property using a second physiological property, the monitor comprising:
- a primary input in communication with a first device configured to measure a first physiological property;
- a parameter input in communication with a second device and configured to measure a second physiological property;
- and
- a processor configured to determine a compensated measurement of said first physiological property from said primary input and said parameter input utilizing a compensation relationship between said primary input and said parameter input;
- wherein said first device comprises an optical device and said second device comprises a non-optical device.
A monitor for compensating a first physiological property using a second physiological property, the monitor comprising:
- a primary input in communication with a first device configured to measure a first physiological property;
- a parameter input in communication with a second device and configured to measure a second physiological property;
- and
- a processor configured to determine a compensated measurement of said first physiological property from said primary input and said parameter input utilizing a compensation relationship between said primary input and said parameter input;
- wherein said second physiological property comprises pH.
A monitor for compensating a first physiological property using a second physiological property, the monitor comprising:
- a primary input in communication with a first device and responsive to a first physiological property;
- a parameter input in communication with a second device and responsive to a second physiological property;
- and
- a processor configured to output a compensated measurement of the first physiological property from said primary input and said parameter input utilizing a compensation relationship between said primary input and said parameter input;
- wherein said second physiological property comprises Hct.
Dependencies are inferred from the claim text.