×

Monitoring respiration based on plethysmographic heart rate signal

  • US 20030163054A1
  • Filed: 02/22/2002
  • Published: 08/28/2003
  • Est. Priority Date: 02/22/2002
  • Status: Active Grant
First Claim
Patent Images

1. A method for use in monitoring a patient, comprising the steps of:

  • obtaining a photoplethysmographic (“

    pleth”

    ) signal that is modulated based on interaction of a transmitted optical signal with a patient'"'"'s blood;

    first processing said pleth signal to obtain heart rate information regarding a heart rate of said patient; and

    second processing said heart rate information to obtain respiration information regarding respiration of said patient.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×