×

Interactive portable defibrillator including ECG detection circuit

  • US 4,619,265 A
  • Filed: 09/16/1985
  • Issued: 10/28/1986
  • Est. Priority Date: 03/08/1984
  • Status: Expired due to Term
First Claim
Patent Images

1. A device for monitoring the electrical activity of a patient'"'"'s heart, comprising:

  • sensor means including a pair of electrodes attachable to a patient, ECG detection means connectable to the electrodes for producing an electrocardiogram signal, and motion detection means connectable to the electrodes, the motion detection means comprising means for sensing the impedance between the electrodes and for producing a motion signal indicative of the degree of variation of said impedance over time, including variation not synchronized with the electrocardiogram signal; and

    processing means including means for analyzing the electrocardiogram signal to detect an abnormal heart rhythm, and means for producing an indication that the electrocardiogram signal may be invalid if the motion signal indicates excessive motion on the part of the patient.

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