Assessing cardiovascular function using an optical sensor

  • US 9,848,780 B1
  • Filed: 04/08/2015
  • Issued: 12/26/2017
  • Est. Priority Date: 04/08/2015
  • Status: Active Grant
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First Claim
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1. A method comprising:

  • receiving, by a computing device and from one or more optical sensors operatively coupled to the computing device, multiple images captured external to a patient by the one or more optical sensors over millisecond-range or faster timeframes, the multiple images recording a color or displacement corresponding to an organ or structure of the patient;

    calculating at least one of a change in size, a change in volume, or a change in location of the organ or structure of the patient by;

    analyzing the multiple images to determine the color or displacement corresponding to the organ or structure in different said images;

    correlating the determined color or displacement with associated times of the different said images; and

    comparing the determined color or displacement associated with different said times to determine at least one of a maximum, minimum, or median of the determined color or displacement across the multiple images;

    determining, based on the calculated at least one change in size, volume, or location, at least one measurement indicative of cardiac function of the patient; and

    displaying a user interface to present the at least one measurement.

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