1
Tibor A Nappholz, William N Hursta, Albert K Dawson, Bruce M Steinhaus: Implantable ambulatory electrocardiogram monitor. Telectronics Pacing Systems, Gottlieb Rackman & Reisman, May 19, 1992: US05113869 (752 worldwide citation)

An implanted programmable ambulatory electrocardiography (AECG) patient monitoring device that senses and analyzes electrocardiographic signals from at least one subcutaneous precordial sensor chronically and frequently to detect electrocardiogram and physiological signal characteristics predictive ...


2
Tibor A Nappholz, Albert K Dawson, Richard M T Lu, Bruce M Steinhaus: Apparatus and method for detecting abnormal cardiac rhythms using evoked potential measurements in an arrhythmia control system. Telectronics Pacing Systems, Gottlieb Rackman & Reisman, February 9, 1993: US05184615 (199 worldwide citation)

In an implantable antiarryhythmia pacemaker, an automatic cardiac arrhythmia detection and classification monitoring apparatus and method for measuring stimulated intracardiac electrogram potentials, deriving therefrom a paced depolarization integral (PDI), analyzing time-based changes in the PDI, d ...


3
Tibor A Nappholz, Saul E Greenhut, Albert K Dawson: Implantable cardiac stimulating apparatus and method employing detection of P-waves from signals sensed in the ventricle. Telectronics Pacing Systems, Gottlieb Rackman and Reisman, May 17, 1994: US05312445 (125 worldwide citation)

A P-wave detector in a single chamber ventricular cardiac pacemaker, which is adapted to perform VDD pacing, senses natural atrial activity in the form of P-waves from a standard lead implanted in the ventricle of the heart. The P-wave detector is electrically coupled to a ventricular sensing lead a ...


4
Albert K Dawson, Tibor Nappholz: Pacemaker and method having optimized A-V delay by using the evoked depolarization potential as an indicia of cardiac output. Pacesetter, Gottlieb Rackman & Reisman, July 1, 1997: US05643327 (54 worldwide citation)

The cardiac output of a paced heart is optimized by measuring a parameter indicative of the volume of blood in a heart chamber as a function of a pacing parameter. The pacing parameter is adjusted so that the heart pumps the maximum volume at different rates for hearts with debilitating pathologies. ...