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Method and apparatus for predicting a need for a blood transfusion

  • US 10,258,292 B2
  • Filed: 08/12/2014
  • Issued: 04/16/2019
  • Est. Priority Date: 08/12/2013
  • Status: Active Grant
First Claim
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1. A method comprising:

  • obtaining, on a processor, first data that indicates values for one or more parameters of a characteristic of a continuous photoplethysmographic (PPG) waveform collected during a time interval of a treatment of a patient;

    applying, on the processor, coefficients to the values for the one or more parameters;

    determining, on the processor, second data that indicates a prediction that the patient will require a blood transfusion during a time range within a time period from 15 minutes to 24 hours after the time interval of the treatment based on applying the coefficients to the values for the one or more parameters; and

    ordering one or more blood units for a medical facility based on the prediction so that the patient receives a transfusion of the one or more blood units during the time range at the medical facility;

    wherein the prediction is based on the time range and wherein the coefficients to determine the prediction based on the time range are in a range from −

    100 to 35.

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