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Fluid titration system

  • US 8,048,040 B2
  • Filed: 09/11/2008
  • Issued: 11/01/2011
  • Est. Priority Date: 09/13/2007
  • Status: Active Grant
First Claim
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1. A fluid titration system comprising:

  • an optical sensor that transmits multiple wavelengths of optical radiation into a tissue site of a person and detects the optical radiation after attenuation by pulsatile blood flowing within the tissue site so as to generate a sensor signal responsive to the detected optical radiation;

    a physiological monitor in electrical communications with the optical sensor, the physiological monitor configured to calculate a measure of plethysmograph variability (PV) from the sensor signal; and

    an infusion device that administers a liquid solution via an intravenous (IV) connection to the person in response to the measure of PV.

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