METHOD FOR MEASURING PATIENT POSTURE AND VITAL SIGNS

  • US 20100298655A1
  • Filed: 05/20/2009
  • Published: 11/25/2010
  • Est. Priority Date: 05/20/2009
  • Status: Active Grant
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First Claim
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1. A method for monitoring vital signs and posture of a patient, the method comprising the following steps:

  • (a) detecting a first time-dependent physiological waveform indicative of one or more contractile properties of the patient'"'"'s heart with a first sensor comprising a first detector configured to be worn on the patient'"'"'s body;

    (b) detecting a second time-dependent physiological waveform indicative of one or more contractile properties of the patient'"'"'s heart with a second sensor comprising a second detector configured to be worn on the patient'"'"'s body;

    (c) detecting a set of time-dependent motion waveforms with at least one motion-detecting sensor positioned on the patient'"'"'s torso, wherein the one motion-detecting sensor detects a set of motion waveforms indicative of motion of the patient'"'"'s torso;

    (d) processing the first and second time-dependent physiological waveforms to determine at least one vital sign from the patient;

    (e) analyzing at least a portion of the set of time-dependent motion waveforms, or a mathematical derivative thereof, to determine a vector corresponding to motion of the patient'"'"'s torso;

    (f) comparing the vector to a coordinate space representative of how the motion-detecting sensor is oriented on the patient to determine a posture parameter; and

    (g) comparing the posture parameter to a threshold value to estimate the patient'"'"'s posture.

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