1
John G Keimel: Apparatus and method for treating a tachyarrhythmia. Medtronic, Harold R Patton, Reed A Duthler, February 23, 1993: US05188105 (215 worldwide citation)

An implantable cardioverter/defibrillator capable of detecting fibrillation and other tachyarrhythmias and of generating high energy cardioversion and defibrillation pulses. The device delivers cardioversion pulses and defibrillation pulses synchronized to heart rhythm, wherever possible. Delivery o ...


2
Walter H Olson: Apparatus and method for treating a tachyarrhythmia. Medtronic, Reed A Duthler, Harold R Patton, October 17, 1995: US05458619 (33 worldwide citation)

An antitachyarrhythmia device employing a tachycardia termination methodology in which antitachycardia pacing and cardioversion pulse therapies are combined. After detection of an arrhythmia which would normally result in delivery of a cardioversion or defibrillation pulse, the device begins to char ...


3
Xusheng Zhang: Method and apparatus for verifying discriminating of tachycardia events in a medical device having dual sensing vectors. Medtronic, April 4, 2017: US09610025 (1 worldwide citation)

A method and medical device for detecting a cardiac event that includes sensing cardiac signals from a plurality of electrodes, sensing a plurality of beats in response to the sensed cardiac signals, identifying each beat of the plurality of beats as one of a normal beat and a not normal beat, deter ...


4
Xusheng Zhang: Method and apparatus for beat acquisition during template generation in a medical device having dual sensing vectors. Medtronic, February 7, 2017: US09561005 (1 worldwide citation)

Techniques are described for generating beat templates and utilizing those beat templates to detect a cardiac event, e.g., a tachyarrhythmia. In particular, example methods and devices for acquiring qualified beats for template generation are described. Additionally, techniques are described for sel ...


5
Xusheng Zhang: Method and apparatus for discriminating tachycardia events in a medical device using two sensing vectors. Medtronic, November 7, 2017: US09808640

A method and medical device for detecting a cardiac event that includes sensing cardiac signals from a plurality of electrodes forming a first sensing vector sensing a first interval of the cardiac signal during a predetermined time period and a second sensing vector simultaneously sensing a second ...


6
Saul E Greenhut, Robert W Stadler, Xusheng Zhang: Method and apparatus for adjusting a blanking period for selecting a sensing vector configuration in a medical device. Medtronic, October 24, 2017: US09795312

A method and medical device for determining sensing vectors that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a plurality of sensing vectors, setting a blanking period and a blanking period adjustment window for the plurality of sensing vectors ...


7
Randolph E Crutchfield, Mark R Boone, Lonny V Cabelka, John T Meador: Multi-primary transformer charging circuits for implantable medical devices. Medtronic, May 9, 2017: US09643025

An implantable medical device includes a low-power circuit and a multi-cell power source. The cells of the power source are coupled to a transformer in a parallel configuration. The transformer includes multiple secondary windings and each of the windings is coupled to a capacitor that stores energy ...


8
Mark R Boone, Randolph E Crutchfield, Lonny V Cabelka, Kevin P Kuehn, John T Meador: Multiple transformer charging circuits for implantable medical devices. Medtronic, August 8, 2017: US09724528

An implantable medical device includes a low-power circuit, a high-power circuit, and a dual-cell power source. The power source is coupled to a dual-transformer such that each cell is connected to only one of the transformers. Each transformer includes multiple windings and each of the windings is ...


9
John D Norton, Andrew J Ries, Randolph E Crutchfield: Implantable medical device having isolated multi-cell power sources. Medtronic, September 5, 2017: US09750950

Implantable medical device systems of the present disclosure may include a subcutaneous implantable cardioverter defibrillator (SICD) that is powered by a multi-cell power source that is connected to a transformer and power conversion circuitry to charge one or more relatively small, but powerful, h ...


10
Lonny V Cabelka, Mark R Boone, Randolph E Crutchfield, Kevin P Kuehn, John T Meador, John D Norton, Craig L Schmidt: Implantable medical devices having multi-cell power sources. Medtronic, January 9, 2018: US09861827

An implantable medical device includes a low-power circuit and a multi-cell power source. The cells of the power source are coupled in a parallel configuration. The implantable medical device includes both a low power circuit that is selectively coupled between the first and second cells and a high ...