1
Edward A Haluska, Stephen J Whistler, Ross G Baker Jr, Richard V Calfee: Implantable cardiac stimulator for detection and treatment of ventricular arrhythmias. Intermedics, Russell J Egan, Donald R Greene, May 16, 1989: US04830006 (502 worldwide citation)

An implantable cardiac stimulator integrates the functions of bradycardia and anti-tachycardia pacing-type therapies, and cardioversion and defibrillation shock-type therapies. The stimulator is programmable to provide a multiplicity of hierarchical detection algorithms and therapeutic modalities to ...


2
Ross G Baker Jr, Stephen J Whistler, Raymond E Ideker, Richard V Calfee, Edward A Haluska: Biphasic waveforms for defibrillation. Intermedics, Russell J Egan, Donald R Greene, April 18, 1989: US04821723 (315 worldwide citation)

In a method and apparatus for defibrillating a heart in fibrillation, the onset of fibrillation of the heart is detected, and a biphasic waveform having only a first phase and a second phase is applied to the fibrillating heart. Each phase of the waveform is characterized by a predetermined time dur ...


3
Ross G Baker Jr, Richard V Calfee, Edward A Haluska, Stephen J Whistler: Implantable cardiac stimulator with automatic gain control and bandpass filtering in feedback loop. Intermedics, John R Merkling, November 14, 1989: US04880004 (134 worldwide citation)

An implantable cardiac stimulator for detecting and treating cardiac arrhythmias includes a sense amplifier responsive to sensed cardiac signals for detecting and distinguishing normal and abnormal cardiac activity within the sensed signals. The sense amplifier includes an automatic gain control amp ...