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Physiological trend monitor

  • US 7,880,606 B2
  • Filed: 02/12/2008
  • Issued: 02/01/2011
  • Est. Priority Date: 01/24/2002
  • Status: Expired due to Term
First Claim
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1. A physiological trend monitoring method comprising:

  • transmitting light having multiple wavelengths into a patient tissue site;

    generating a sensor signal responsive to the light after attenuation by pulsatile arterial blood flow within the tissue site;

    detecting a blood parameter trend according to the sensor signal; and

    generating an alarm according to the blood parameter trend.

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