System for sensing electrical depolarization wave signals and th

Details System for sensing electrical depolarization wave signals and th System for sensing electrical depolarization wave signals and th

1985-11-12

1988-07-05

Hindenburg, Max

Surgery

Truss

Pad

128419D, 128786, A61B 504

Patent

active

047547537

ABSTRACT:
Apparatus and method for sensing the probable onset of ventricular fibrillation or other harmful tachyarrhythmias and delivering electrical cardioverting stimulation pulses in response thereto. The sensing of the onset of the harmful tachyarrhythmia is accomplished using two different types of sensors. The first sensing technique utilizes an intracardiac ECG observed within three dimensional space. Directional changes of the current vector within the intracardiac ECG are used to predict the onset of harmful ventricular tachyarrhythmias. The second sensing technique employs a chemically sensitive semiconductor device which measures the level of ionic potassium found within the intracardiac blood. Rapid changes in ionic potassium level are used to predict the onset of detrimental ventricular tachyarrhythmias. An implantable device uses both types of sensors in a programmable fashion to deliver cardioverting electrical stimulation pulses based upon the predicted onset of ventricular fibrillation.

REFERENCES:
patent: 3548813 (1970-12-01), Berner
patent: 3710174 (1973-01-01), Cerniglia, Jr.
patent: 3815611 (1974-06-01), Denniston
patent: 3825015 (1974-07-01), Berkovits
patent: 3915174 (1975-10-01), Preston
patent: 3937226 (1976-02-01), Funke
patent: 3942536 (1976-03-01), Mirowski et al.
patent: 3983867 (1976-10-01), Case
patent: 4121575 (1978-10-01), Mills et al.
patent: 4172451 (1979-10-01), Kline
patent: 4216780 (1980-08-01), Rubel et al.
patent: 4224949 (1980-09-01), Scott et al.
patent: 4354497 (1982-10-01), Kahn
patent: 4365639 (1982-12-01), Goldreyer
Article entitled "Engineering Aspects of Implantable Cardiac Pacemakers", by P. Tarjan, published in Cardiac Pacing, P. Samet Editor, New York, 1973, pp. 47-71.
Article entitled "A Comparison of Unipolar and Bipolar Electrograms for Cardiac Pacemaker Sensing", by DeCaprio et al., published in Circulation, vol. 56, No. 5, Nov. 1977, pp. 750-755.
Abstract entitled "Proposed Cardiac Pacemaker System Combining Unipolar Stimulation with Bipolar Sensing", by Hurzeler et al., published in IEEE Transactions on Biomedical Engineering, vol. BME-26, No. 7, Jul. 1979, p. 440.
Article entitled "Conduction Cardiograph-Bundle of His Detector", published in IEEE Transactions on Biomedical Engineering, vol. BME-22, pp. 269-274, Jul. 1975.

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