Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1994-11-30
1996-01-02
Sykes, Angela D.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 1368
Patent
active
054804132
ABSTRACT:
A pacemaker is provided in which ventricular rate instability is detected and automatically corrected by gradually increasing the ventricular pacing rate. Once the ventricle is stabilized, its pacing rate is gradually decreased as much as possible without losing ventricular stability. Ventricular instability can be a result of an atrial tachyrhythmia such as atrial fibrillation. Therefore, if the pacemaker is a dual chamber pacemaker, its operation is switched to a single chamber pacing mode thereby decoupling the ventricular pacing signals from the atrial pacing signals and atrial triggered ventricular pacing is inhibited until the atrial fibrillation terminates.
REFERENCES:
patent: 4998974 (1991-03-01), Aker
A Quantitative Model for the Ventricular Response During Atrial Fibrillation, Richard J. Cohen, Rronald D. Berger, Theodore E. Dushane, 1983 IEEE, pp. 796-781.
A New Pacing Method for Rapid Regularization and Rate Control in Atrial Fibrillation, Chu-Pak Lau, Wing-Hung Leung, Cheuk-Kit Wong, Yau Ting Tai and Chun-Ho Cheng; May, 1990; vol. 65, pp. 1198-1203.
Effect of Right Ventricular Pacing on Ventricular Rhythm During Atrial Fibrillation; Fred H. M. Wittkampf, Mike J. L. deJongste, Henk I. Lei, Frits L. Meijler; Mar., 1988; The American College of Cardiology, pp. 539-545.
Rate Stabilization by Right Ventricular Pacing in Patients with Atrial Fibrillation; F. H. M. Wittkampf and M. J. L. DeJongste; Nov.-Dec., 1986; PACE, vol. 9, pp. 1147-1153.
Dawson Albert
Greenhut Saul
Nappholz Tibor
Steinhaus Bruce
Huang Stephen
Sykes Angela D.
Telectronics Pacing Systems Inc.
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