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
Timothy J Cox, John P Rosborough: Cardiac simulation system having multiple stimulators for anti-arrhythmia therapy. Intermedics, Schwegman Lundberg Woessner & Kluth P A, October 31, 2000: US06141588 (395 worldwide citation)

A medical system comprising a control device (referred to as a "planet") and a plurality of sensing and stimulating devices (referred to as "satellites") is disclosed. The satellites are relatively small devices that can be thoracoscopically attached to an exterior surface of the heart. The planet c ...


3
William L Winstrom: Apparatus for generating multiphasic defibrillation pulse waveform. Intermedics, Russell J Egan, January 31, 1989: US04800883 (369 worldwide citation)

An apparatus suitable for use in an implantable automatic defibrillation system for automatically generating a multiphasic defibrillation pulse waveform in response to sensed fibrillation has first and second series charge-storing capacitors having a common terminal and two other terminals each at d ...


4
Robert A DiDomenico: Positive pressure programmable infusion pump. Intermedics Infusaid, Sughrue Mion Zinn Macpeak & Seas, December 22, 1987: US04714462 (355 worldwide citation)

A positive pressure positive displacement implantable infusion pump. A positive pressure fluid reservoir maintains infusate for delivery by a positive pressure displacement pump. Infusate is drawn by the pump into a drug pressurant chamber. A check valve prevents backflow into the reservoir. The che ...


5
Mohammed Z Munshi, Ashok P Nedungadi: Rechargeable biomedical battery powered devices with recharging and control system therefor. Intermedics, John R Markling, May 2, 1995: US05411537 (343 worldwide citation)

An improved hermetically-sealed automatic implantable cardioverter-defibrillator (AICD) or any other bioimplantable device which may be operated on a single rechargeable cell, or a dual power source system, the rechargeable component being recharged by magnetic induction. Included in the implantable ...


6
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 ...


7
Patrick J Paul, David Prutchi: Electromagnetic noise detector for implantable medical devices. Intermedics, E Richard Zamecki, December 16, 1997: US05697958 (296 worldwide citation)

Disclosed are apparatus and method for detecting electromagnetic interference (EMI), or noise, that may disrupt the proper operation of medical devices implantable in patients, such as cardiac stimulators. Circuitry of the detector of the invention is independent of other circuitry of the medical de ...


8
Benjamin D Pless, Michael B Sweeney: Pacemaker for detecting and terminating a tachycardia. Intermedics, John R Merkling, November 14, 1989: US04880005 (288 worldwide citation)

A heart pacemaker detects pace-terminable tachycardia conditions in the atrium of the heart in accordance with selected high rate, rate stability, sudden onset and sustained high rate criteria. When a pace-terminable tachycardia is detected, programmed treatment modalities are applied to attempt to ...


9
Xintao Wang, Jennifer L Hay: Enhanced transcutaneous recharging system for battery powered implantable medical device. Sulzer Intermedics, John R Merkling, December 30, 1997: US05702431 (278 worldwide citation)

An improved transcutaneous energy transmission device is disclosed for charging rechargeable batteries in an implanted medical device and to minimize peak temperature rises in the implanted device. A current with a sinusoidal waveform is applied to a resonant circuit comprising a primary coil and a ...


10
James L Dale, Brian D Burkinshaw, Wayne Z Burkhead: Humeral osteotomy guide. Intermedics Orthopedics, John R Merkling, January 16, 1990: US04893619 (278 worldwide citation)

A device for guiding an osteotomy to be performed on the proximal end of a humerus that has a proximal sawguide alignable on a selected surface of the proximal end of the humerus for defining a saw line thereon; a radial arm connecting the sawguide to a distal mechanism for stably aligning the sawgu ...