1
Charles G Yerich, William J Combs, Karen J Kleckner, Eric J Panken, Richard S Schallhorn, John D Wahlstrand: Method and apparatus for rate-responsive cardiac pacing. Medtronic, Michael B Atlass, Harold R Patton, October 8, 1996: US05562711 (159 worldwide citation)

A body-implantable rate-responsive cardiac pacemaker is provided with circuitry for sensing a plurality of physiologic parameters known to be indicative of a patient's metabolic demand for increased cardiac output. In one embodiment, a rate-responsive pacemaker is provided with an activity sensor fo ...


2
Carleen J Juran, Karen J Kleckner, Charles G Yerich: Multi-site cardiac pacing system having trigger pace window. Medtronic, Michael C Soldner, Girma Wolde Michael, October 15, 2002: US06466820 (115 worldwide citation)

Multi-site cardiac pacing systems for providing pacing to multiple spaced apart sites of a patient's heart, including especially but not limited to sites in right heart chamber (RHC) and left heart chamber (LHC), in triggered pacing modes while avoiding inappropriate delivery of triggered pacin ...


3
Catherine R Condie, Daniel J Baxter, William J Combs, Daniel J Greeninger, Karen J Kleckner, H Toby Markowitz, John C Stroebel, John D Wahlstrand: Method and apparatus for automatic pacing threshold determination. Medtronic, Harold R Patton, Michael B Atlass, February 3, 1998: US05713933 (112 worldwide citation)

A method and apparatus for automatic determination of a pacemaker patient's pacing stimulation threshold. Circuitry is provided in a pacemaker for obtaining a signal reflecting cardiac impedance, which is known to reliably reflect certain aspects of cardiac function. Circuitry is also provided for m ...


4
David A Igel, H Toby Markowitz, Robert A Betzold, Karen J Kleckner, Jeremy A Schroetter: Regularization of ventricular rate during atrial tachyarrhythmia. Medtronic, Girma Wolde Michael, August 13, 2002: US06434424 (98 worldwide citation)

A pacing system provided with a mode switching feature and ventricular rate regularization (VRR) function adapted to stabilize or regularize ventricular heart rate during chronic or paroxysmal atrial tachyarrhythmia. In a preferred embodiment, the pacing system nominally operates in an atrial synchr ...


5
Karen J Kleckner, Carleen J Juran, Robert A Betzold, Thomas C Wendell, Charles G Yerich: Multi-site cardiac pacing system having conditional refractory period. Medtronic, Girma Wolde Michael, December 17, 2002: US06496730 (85 worldwide citation)

Multi-site cardiac pacing systems for providing pacing to multiple sites in a patient's heart, e.g., in a single heart chamber or in right and left heart chambers, while avoiding inappropriate responses to double sensing of an evoked depolarization conducted between the sites. A conditional ref ...


6
Donald R Merritt, Mukul Jain, James W Busacker, Kathleen U Crandall, Karen J Kleckner: System and method for determining remaining battery life for an implantable medical device. Medtronic, Girma Wolde Michael, Daniel G Chapik, December 30, 2003: US06671552 (69 worldwide citation)

A system and method for determining a remaining life estimate of the remaining battery life of a battery of an implantable medical device (IMD). The IMD battery preferably exhibits a highly reproducible monotonically decreasing discharge curve. The estimated remaining life estimates are derived by p ...


7
Raja N Ghanem, Robert W Stadler, Xusheng Zhang, Saul E Greenhut, Karen J Kleckner, Paul G Krause, Veerdhaval Mahajan: Method and apparatus for detecting arrhythmias in a medical device. Medtronic, Michael C Soldner, March 15, 2011: US07907993 (65 worldwide citation)

A method of detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes forming a first sensing vector and a second sensing vector, and determining first heart rate estimates associated with cardiac signals sensed from the first sensing vector a ...


8
Saul E Greenhut, Robert W Stadler, Karen J Kleckner: Method and apparatus for subcutaneous ECG vector acceptability and selection. Medtronic, Michael C Soldner, March 8, 2011: US07904153 (57 worldwide citation)

An implantable medical device system and associated method select subcutaneous sensing electrodes for use in monitoring the heart rhythm. A subset of multiple sensing vectors is selected from a number of electrodes positioned at a first subcutaneous location and one electrode positioned at a second ...


9
Purvee P Parikh, John C Stroebel, Todd J Sheldon, Karen J Kleckner: LV threshold measurement and capture management. Medtronic, Stephen W Bauer, March 23, 2010: US07684863 (37 worldwide citation)

The invention provides methods and apparatus for determining in a non-tracking pacing mode (e.g., DDI/R, VVI/R) whether a ventricular pacing stimulus is capturing a paced ventricle, including some or all of the following aspects. For example, increasing a ventricular pacing rate a nominal amount to ...


10
Raja N Ghanem, Robert W Stadler, Xusheng Zhang, Karen J Kleckner, Paul G Krause: Method and apparatus for detecting arrhythmias in a medical device. Medtronic, Michael C Soldner, August 3, 2010: US07769452 (35 worldwide citation)

A method of detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes forming a first sensing vector and a second sensing vector, determining whether the first sensing vector and the second sensing vector is corrupted by noise, and determining ...