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Pulse and confidence indicator displayed proximate plethysmograph

  • US 9,636,055 B2
  • Filed: 10/24/2011
  • Issued: 05/02/2017
  • Est. Priority Date: 01/07/1999
  • Status: Expired due to Fees
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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