Pulse and confidence indicator displayed proximate plethysmograph
First Claim
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1. A method of indicating pulse occurrences and signal quality in an electronic patient monitor when a displayed plethysmograph alone may not be a sufficient visual indicator, the method comprising:
- detecting at a patient'"'"'s skin light attenuated by pulsing blood of the patient;
receiving a sensor output signal indicative of said detected light;
determining with a signal processor plethysmographic data responsive to said sensor output signal;
determining with said signal processor a measurement of confidence that displayed data accurately reflects physiological parameters occurring in said patient;
displaying said plethysmographic data on a display of a patient monitoring device at a time substantially proximate said detecting;
displaying at a time of said displaying said plethysmographic data, a visual pulse indicator in proximity to said plethysmographic data to indicate to a caregiver which of said displayed plethysmographic data corresponds to an occurrence of a pulse of said patient; and
modifying said visual pulse indicator, said modification responsive to said measurement of confidence.
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Abstract
According to some embodiments of the present invention, a display is used to show an indication of the signal'"'"'s quality. This indication of the signal'"'"'s quality may be provided in a number of ways, including audibly or visually.
590 Citations
16 Claims
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1. A method of indicating pulse occurrences and signal quality in an electronic patient monitor when a displayed plethysmograph alone may not be a sufficient visual indicator, the method comprising:
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detecting at a patient'"'"'s skin light attenuated by pulsing blood of the patient; receiving a sensor output signal indicative of said detected light; determining with a signal processor plethysmographic data responsive to said sensor output signal; determining with said signal processor a measurement of confidence that displayed data accurately reflects physiological parameters occurring in said patient; displaying said plethysmographic data on a display of a patient monitoring device at a time substantially proximate said detecting; displaying at a time of said displaying said plethysmographic data, a visual pulse indicator in proximity to said plethysmographic data to indicate to a caregiver which of said displayed plethysmographic data corresponds to an occurrence of a pulse of said patient; and modifying said visual pulse indicator, said modification responsive to said measurement of confidence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electronic patient monitoring system including a patient monitor having a signal processor, said patient monitor communicating with a noninvasive optical sensor and a display device, said display device responsive to measurements and calculation made by said signal processor, said patient monitor configured to indicate pulse occurrences and signal quality when a displayed plethysmograph alone may not be a sufficient visual indicator, the monitor comprising:
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a sensor including a detector detecting light at a patient'"'"'s skin attenuated by pulsing blood of the patient and outputting a sensor output signal responsive to said detected light; a sensor signal input receiving said sensor output signal; a signal processor receiving said sensor output signal, determining plethysmographic data responsive to said sensor output signal near a time said sensor outputs said sensor output signal, determining a measurement of confidence that displayed data accurately reflects physiological parameters occurring in said patient; and a display device displaying said plethysmographic data, displaying a modified visual pulse indicator in proximity to said plethysmographic data to indicate to a caregiver which of said displayed plethysmographic data corresponds to an occurrence of a pulse of said patient, said modification to said visual pulse indicator being responsive to said measurement of confidence. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification