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
Kenneth A Collins: Antiarrhythmia pacer using antiarrhythmia pacing and autonomic nerve stimulation therapy. Telectronics Pacing Systems, Gottlieb Rackman & Reisman, April 20, 1993: US05203326 (546 worldwide citation)

An antiarrhythmia pacemaker detects the occurrence of an abnormal condition of a patient's heart and, in response, delivers an antiarrhythmia therapy to the patient which includes two components, electrical stimulation of the heart and electrical stimulation of nerves or ganglia in the autonomic ner ...


3
Norma L Gilli: Apparatus and method employing plural electrode configurations for cardioversion of atrial fibrillation in an arrhythmia control system. Telectronics Pacing Systems, Gottlieb Rackman & Reisman, May 11, 1993: US05209229 (443 worldwide citation)

An implantable device and a method for the automatic detection of atrial arrhythmias and for providing low energy atrial cardioversion therapy for such arrhythmias, with minimal tissue damage and power drain, is disclosed. The device is capable of being incorporated within, and is disclosed as part ...


4
Steven M Weiss: Apparatus and method for generation of varying waveforms in arrhythmia control system. Telectronics Pacing Systems, Gottlieb Rackman & Reisman, February 9, 1993: US05184616 (244 worldwide citation)

An implantable device and method for providing anti-arrhythmia therapy to, and including arrhythmia in, a patient's inadequately functioning heart are disclosed. A pacemaker, defibrillator and microprocessor are utilized in conjuction with an electrode lead system adapted to be connected to the hear ...


5
Branko Breyer, Ivo Cikes: Ultrasonically marked cardiac catheters. Telectronics, Gottlieb Rackman & Reisman, October 6, 1987: US04697595 (240 worldwide citation)

The hollow cylindrical wall of the catheter is composed of flexible, electrically insulating, ultrasonically transparent material. Embedded therein are spaced tubular-shaped ultrasonic piezoelectric transducers which substantially surround the lumen. The transducers receive signals from the imaging ...


6
Tibor A Nappholz, Mark Lubin, Harry L Valenta Jr: Metabolic-demand pacemaker and method of using the same to determine minute volume. Telectronics, Gottlieb Rackman & Reisman, October 27, 1987: US04702253 (225 worldwide citation)

A metabolic-demand pacemaker in which the standby rate is a function of minute volume. Electrodes are placed in a blood vessel in the vicinity of the patient's pleural cavity, a known current field is established in the blood, and the impedance in the field is measured. The impedance is a function o ...


7
James A Nolan, Bruce M Steinhaus, Tibor A Nappholz: Leadless implantable sensor assembly and a cardiac emergency warning alarm. Telectronics Pacing Systems, Gottlieb Rackman & Reisman, April 11, 1995: US05404877 (223 worldwide citation)

A leadless implantable cardiac arrhythmia alarm is disclosed which continuously assesses a patient's heart function to discriminate between normal and abnormal heart functioning and, upon detecting an abnormal condition, generates a patient-warning signal. The alarm is capable of sensing impedance m ...


8
Bruce M Steinhaus, Randy T Wells: Detection of cardiac arrhythmias using correlation of a cardiac electrical signals and temporal data compression. Telectronics Pacing Systems, Gottlieb Rackman & Rackman, June 8, 1993: US05217021 (221 worldwide citation)

A method and apparatus for detecting cardiac arrhythmias in a patient's heart is disclosed. The monitoring method and apparatus sense cardiac electrical signals when the heart is functioning in a known cardiac state, then characterize this known cardiac state by storing a temporally compressed templ ...


9
Tibor A Nappholz, Harry L Valenta Jr, Steven M Maas, Ken Koestner: Method and apparatus for chronically monitoring the hemodynamic state of a patient using doppler ultrasound. Telectronics Pacing Systems, Gottlieb Rackman & Reisman, February 23, 1993: US05188106 (212 worldwide citation)

A hemodynamic control apparatus and method for regulating blood flow within the cardiovascular system in a closed-loop control system using ultrasound measurement techniques to determine a hemodynamic status of the patient and to derive a control parameter for modulating the hemodynamics of the syst ...


10
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 ...