1
Edwin G Duffin, David L Thompson, Steven D Goedeke, Gregory J Haubrich: World wide patient location and data telemetry system for implantable medical devices. Medtronic, Harold R Patton, Michael B Atlass, May 19, 1998: US05752976 (513 worldwide citation)

A system and method for communicating with a medical device implanted in an ambulatory patient and for locating the patient in order to selectively monitor device function, alter device operating parameters and modes and provide emergency assistance to and communications with a patient. The implante ...


2
Edwin G Duffin: Implantable monitor. Medtronic, Reed A Duthler, Harold R Patton, May 8, 2001: US06230059 (373 worldwide citation)

An implantable medical device (IMD) capable of monitoring physiologic data, distinguishing relatively noisy and noise free physiologic data, and recording noisy and relatively noise free segments of physiologic data in separate memory registers of a limited memory for retrieval and analysis at a lat ...


3
Edwin G Duffin: Method and apparatus for discriminating among normal and pathological tachyarrhythmias. Medtronic, Reed A Duthler, Harold R Patton, March 16, 1993: US05193550 (223 worldwide citation)

A method and apparatus for discriminating among the various normal and pathologic tachycardias. In response to the detection of tachycardia, far-field ventricular electrograms sensed using atrial electrodes and far-field atrial electrograms sensed using ventricular electrodes are analyzed in order t ...


4
William J Combs, Edwin G Duffin, T V Rao: Method and apparatus for treatment of atrial fibrillation. Medtronic, Reed A Duthler, Harold R Patton, October 7, 1997: US05674251 (144 worldwide citation)

A pacemaker system adapted to deliver pacing pulses in the presence of fibrillation. The pacing pulses are delivered via large surface area electrodes of the type normally used to accomplish defibrillation or cardioversion using high voltage pulses. An extended pulse train is delivered in order to g ...


5
Edwin G Duffin, David L Thompson, Steven D Goedeke, Gregory J Haubrich: World wide patient location and data telemetry system for implantable medical devices. Medtronic, Michael B Atlass, Harold R Patton, September 18, 2001: US06292698 (143 worldwide citation)

A system for communicating with a medical device implanted in an ambulatory patient and for locating the patient in order to selectively monitor device function, alter device operating parameters and modes and provide emergency assistance to and communications with a patient. The implanted device in ...


6
William J Combs, Edwin G Duffin, T V Rao: Method and apparatus for treatment of atrial fibrillation. Medtronic, Harold R Patton, Reed A Duthler, October 8, 1996: US05562708 (107 worldwide citation)

A pacemaker system adapted to deliver pacing pulses in the presence of fibrillation. The pacing pulses are delivered via large surface area electrodes of the type normally used to accomplish defibrillation or cardioversion using high voltage pulses. An extended pulse train is delivered in order to g ...


7
Bruce D Gunderson, Amisha S Patel, Chad A Bounds, Edwin G Duffin: Method and apparatus for identifying lead-related conditions using lead impedance measurements. Medtronic, Caroline F Barry, Girma Wolde Michael, May 16, 2006: US07047083 (97 worldwide citation)

A method and apparatus for automatically detecting and diagnosing lead-related conditions is provided. Specifically, relatively short-term and relatively long-term impedance parameters are determined for detecting an impedance trend indicative of a lead-related condition such as an open circuit, whi ...


8
Edwin G Duffin: Mode switching pacemaker. Medtronic, Reed A Duthler, Harold R Patton, July 28, 1992: US05133350 (95 worldwide citation)

A mode switching bradycardia pacemaker especially adapted for incorporation in an antitachyarrhythmia pacing and/or cardioversion/defibrillation system, provides AAI pacing in the absence of an intrinsic atrial rate exceeding the pacing lower rate and as long as the patient's heart is capable of nor ...


9
Edwin G Duffin Jr: Method and apparatus for wide area antitachycardia pacing. Medtronic, Reed A Duthler, Harold R Patton, September 14, 1993: US05243978 (47 worldwide citation)

A pacemaker system adapted to delivery pacing pulses in the presence of tachycardia or bradycardia. The pacing pulses are delivered via large surface area electrodes of the type normally used to accomplish defibrillation or cardioversion. Delivery of pacing pulses using the large surface area electr ...


10
Edwin G Duffin Jr, Warren S Watson, Karel F A A Smits: Switchable connector block for implantable defibrillator. Medtronic, Reed A Duthler, Harold R Patton, December 20, 1994: US05374279 (42 worldwide citation)

A medical electrical pulse generator having a switchable connector assembly. The connector assembly is provided with connector bores, each intended to receive a medical electrical lead or a sealing plug, if no lead is provided. Electrical connectors located within the bores are arranged such that in ...