Pacemaker monitoring recorder and malfunction analyzer

Details Pacemaker monitoring recorder and malfunction analyzer Pacemaker monitoring recorder and malfunction analyzer

1983-05-17

1985-08-06

Kamm, William E.

Surgery

Truss

Pad

128419PT, 128711, A61B 504

Patent

active

045329346

ABSTRACT:
A system for ambulatory monitoring and subsequent analysis and evaluation of pacemaker performance includes a recorder module which detects pacemaker spikes and in response to each spike generates a signal having a waveform compatible with commericially-available ambulatory ECG recorders, to permit ECG signals to be recorded in one channel of the recorder while simultaneously the pacemaker spike signals are recorded in another channel. The magnetic tape on which the signals are recorded is played back at 120 times the recording speed, typically, on a commercially-available playback analyzer which presents the pacemaker and ECG signals as separate outputs. The system further includes an analysis module connected to the playback unit and receiving from it the ECG signals and the pacemaker spike signals. The analysis module has counters which accumulate the number of paced beats and of fusion beats. The analysis module also includes circuits for sensing manifestations of pacemaker malfunction. When malfunction is sensed, the analysis module reduces the playback speed to facilitate study by an operator and activates a visual alarm. The conditions sensed include: failure-to-sense, failure-to-capture, and abnormal bradycardia.

REFERENCES:
patent: 3144019 (1964-08-01), Haber
patent: 3651280 (1972-03-01), Streckmann
patent: 3742938 (1973-07-01), Stern
patent: 3923041 (1975-12-01), Stasz
patent: 4006737 (1977-02-01), Cherry

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