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Patient monitoring device with multiple sensors

  • US 7,606,606 B2
  • Filed: 12/27/2006
  • Issued: 10/20/2009
  • Est. Priority Date: 12/27/2005
  • Status: Active Grant
First Claim
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1. A measurement method for a measurement device configured to determine the attenuation of light in at least one subject, the method comprising:

  • connecting the measurement device operably to a plurality of sensors, each sensor comprising at least one emitter element for emitting radiation and a sensor-specific detector element for receiving the radiation, whereby the measurement device is operably connected to a plurality of sensor-specific detector elements;

    generating a repeating drive pulse sequence containing drive pulses for the emitter elements of the plurality of sensors;

    supplying the drive pulses of the drive pulse sequence to corresponding emitter elements;

    employing a parallel connection of the plurality of sensor-specific detector elements to produce a sequence of reception pulses at a terminal pair common to the sensor-specific detector elements; and

    receiving the sequence of reception pulses at the measurement device.

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