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Plethysmograph pulse recognition processor

  • US 20060206021A1
  • Filed: 05/03/2006
  • Published: 09/14/2006
  • Est. Priority Date: 12/30/1998
  • Status: Active Grant
First Claim
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1. A patient monitor comprising:

  • an input which receives a sensor signal indicative of light attenuated by body tissue; and

    a processor which applies a plurality of first rules to identify potential pulses from within said sensor signal or from within signals derived from said sensor signal, the processor also applying a second plurality of rules to identify acceptable pulses from within said potential pulses, wherein said plurality of said second rules comprise at least one signal modeling rule more complex than said plurality of first rules.

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