Pulse oximetry data confidence indicator
First Claim
Patent Images
1. A method of providing a caregiver with a visual evaluation tool helpful in determining an indication of signal quality, the method comprising:
- acquiring a physiological signal from a physiological sensor capable of detecting light attenuated by body tissue carrying blood;
measuring a signal quality of said physiological signal;
generating a trace indicative of a physiological parameter and responsive to said physiological signal on a display; and
varying a color of said trace so as to indicate said signal quality of the physiological signal.
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Reexamination
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Abstract
According to some embodiments of the present invention, a display is used to show a signal from a physiological sensor as well as an indication of the signal'"'"'s quality. While this indication of the signal'"'"'s quality may be provided in a number of ways, it is preferably provided by changing a color on the display.
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Citations
24 Claims
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1. A method of providing a caregiver with a visual evaluation tool helpful in determining an indication of signal quality, the method comprising:
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acquiring a physiological signal from a physiological sensor capable of detecting light attenuated by body tissue carrying blood; measuring a signal quality of said physiological signal; generating a trace indicative of a physiological parameter and responsive to said physiological signal on a display; and varying a color of said trace so as to indicate said signal quality of the physiological signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of providing a caregiver with a visual evaluation tool helpful in determining an indication of signal quality, the method comprising:
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acquiring a signal from a physiological sensor capable of detecting light attenuated by body tissue carrying blood; measuring a signal quality of said signal; generating a trace responsive to said signal on a display; varying a color of said trace so as to indicate said signal quality; generating an audible alert in response to the signal quality, wherein the step of generating an audible alert further comprises varying a volume of the audible alert in response to the signal quality, and wherein the step of varying the volume of the audible alert further comprises raising the volume of the audible alert as the signal quality becomes more positive and lowering the volume of the audible alert as the signal quality becomes less positive.
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11. A method of altering display elements indicative of one or more parameters monitored by a patient monitoring device, the method comprising:
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acquiring a physiological signal from a physiological sensor; generating display elements, including a plethysmograph trace, in response to said physiological signal; calculating a signal quality of said physiological signal; and altering a color of at least the plethysmograph trace in response to the signal quality. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A physiological monitoring device that provides a visual indication of signal quality, the device comprising:
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a light sensitive detector capable of detecting light attenuated by body tissue carrying blood; a display capable of providing a trace indicative of a physiological parameter; and a microprocessor configured to receive a physiological signal from the light sensitive detector and generate the trace on the display in response to said physiological signal, said microprocessor also configured to measure a signal quality of the physiological signal and vary a color of the trace so as to indicate the signal quality. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification