Noninvasive multi-parameter patient monitor
First Claim
1. A method comprising:
- processing one or more signals with one or more signal processors, said signals responsive to attenuation of light by body tissue of a monitored patient;
noninvasively, electronically determining measured values of oxygen saturation and arterial carbon monoxide saturation, based at least in part on the processed one or more signals;
providing a first oxygen saturation threshold for the oxygen saturation based at least in part on at least one measured value of the arterial carbon monoxide saturation satisfying an arterial carbon monoxide saturation threshold;
providing a second oxygen saturation threshold for the oxygen saturation based at least in part on the at least one measured value of the arterial carbon monoxide saturation not satisfying the arterial carbon monoxide saturation threshold; and
activating a caregiver alert associated with a display based at least in part on at least one measured value of the oxygen saturation satisfying at least one of the first oxygen saturation threshold or the second oxygen saturation threshold.
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Accused Products
Abstract
Embodiments of the present disclosure include a handheld multi-parameter patient monitor capable of determining multiple physiological parameters from the output of a light sensitive detector capable of detecting light attenuated by body tissue. For example, in an embodiment, the monitor is capable of advantageously and accurately displaying one or more of pulse rate, plethysmograph data, perfusion quality, signal confidence, and values of blood constituents in body tissue, including for example, arterial carbon monoxide saturation (“HbCO”), methemoglobin saturation (“HbMet”), total hemoglobin (“Hbt”), arterial oxygen saturation (“SpO2”), fractional arterial oxygen saturation (“SpaO2”), or the like. In an embodiment, the monitor displays a line associated with a patient wellness level.
1429 Citations
19 Claims
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1. A method comprising:
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processing one or more signals with one or more signal processors, said signals responsive to attenuation of light by body tissue of a monitored patient; noninvasively, electronically determining measured values of oxygen saturation and arterial carbon monoxide saturation, based at least in part on the processed one or more signals; providing a first oxygen saturation threshold for the oxygen saturation based at least in part on at least one measured value of the arterial carbon monoxide saturation satisfying an arterial carbon monoxide saturation threshold; providing a second oxygen saturation threshold for the oxygen saturation based at least in part on the at least one measured value of the arterial carbon monoxide saturation not satisfying the arterial carbon monoxide saturation threshold; and activating a caregiver alert associated with a display based at least in part on at least one measured value of the oxygen saturation satisfying at least one of the first oxygen saturation threshold or the second oxygen saturation threshold. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A patient monitor, comprising:
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a sensor port configured to receive one or more signals from a sensor, wherein the signals are responsive to attenuation of light by body tissue of a monitored patient; and a processor in communication with the sensor port and configured to; noninvasively, electronically determine measured values of oxygen saturation and arterial carbon monoxide saturation using the one or more signals received from the sensor; provide a first oxygen saturation threshold for the oxygen saturation based at least in part on at least one measured value of the arterial carbon monoxide saturation satisfying an arterial carbon monoxide saturation threshold; provide a second oxygen saturation threshold for the oxygen saturation based at least in part on the at least one measured value of the arterial carbon monoxide saturation not satisfying the arterial carbon monoxide saturation threshold; and activate a caregiver alert associated with a display based at least in part on at least one measured value of the oxygen saturation satisfying at least one of the first oxygen saturation threshold or the second oxygen saturation threshold. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method comprising:
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noninvasively, electronically determining measured values of oxygen saturation and arterial carbon monoxide saturation, wherein the determining is performed by processing one or more signals with one or more signal processors, said signals responsive to attenuation of light by body tissue of a monitored patient; providing a first oxygen saturation threshold for the oxygen saturation based at least in part on at least one measured value of the arterial carbon monoxide saturation satisfying an arterial carbon monoxide saturation threshold; providing a second oxygen saturation threshold for the oxygen saturation based at least in part on the at least one measured value of the arterial carbon monoxide saturation not satisfying the arterial carbon monoxide saturation threshold; and activating a caregiver alert associated with a display based at least in part on at least one measured value of the oxygen saturation satisfying at least one of the first oxygen saturation threshold or the second oxygen saturation threshold. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification