×

REFRESHED CRT DISPLAY WITH ECG

  • US 3,793,626 A
  • Filed: 09/30/1971
  • Issued: 02/19/1974
  • Est. Priority Date: 09/30/1971
  • Status: Expired due to Term
First Claim
Patent Images

1. A device for analysis and display of electrocardiogram (ECG) signals which comprises:

  • a. means to provide an ECG signal;

    b. a real time memory which includes;

    1. means to receive the ECG signal and convert the signal to digitized form;

    2. means to store the digitized signal for a first predetermined time which corresponds to the time required for the digitized signal to enter, be recycled, and discarded;

    c. means in communication with the real time memory to display continuously the digitized signal in the real time memory in analoG form on a medium;

    d. means to analyze the ECG signal to determine if the signal falls within at least one predetermined limit, which limit corresponds to a rate value which describes an alarm condition and means to provide an alarm signal of the limit is violated;

    e. an alarm memory which includes;

    1. means to receive the ECG signal in digitized form;

    2. means to store the digitized signal for a second predetermined time, which corresponds to the time required for the digitized signal to enter, be recycled, and discarded from the alarm memory; and

    3. means responsive to the presence of the alarm signal to lock in place and prevent the discard of the digitized signal stored in the alarm memory; and

    f. means in communication with the alarm memory to display in analog form the digitized signal locked in the alarm memory on a medium.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×