Alexis C M Renirie, Vincent J A Schouten: System and method for respiration-modulated pacing. Medtronic, Thomas F Woods, Harold Patton, Michael J Jaro, October 31, 2000: US06141590 (215 worldwide citation)

A system and method of providing for cardiac pacing which incorporates modulation of the pacing rate in order to minimize variations in ventricular power output, e.g., variation related to patient respiratory phases. In a preferred embodiment, pacing rate is increased during inspiration relative to ...

Andrew P Kramer, Jeffrey E Stahmann, Rene H Wentkowski, Kenneth L Baker, Jesse W Hartley, David B Krig: System providing ventricular pacing and biventricular coordination. Cardiac Pacemakers, Schwegman Lundberg Woessner & Kluth P A, June 25, 2002: US06411848 (211 worldwide citation)

A cardiac rhythm management system includes techniques for computing an indicated pacing interval, AV delay, or other timing interval. In one embodiment, a variable indicated pacing interval is computed based at least in part on an underlying intrinsic heart rate. The indicated pacing interval is us ...

Andrew P Kramer, Veerichetty Kadhiresan, Jiang Ding, Lawrence Baumann, Scott Vanderlinde: Automatic selection from multiple cardiac optimization protocols. Cardiac Pacemakers, Schwegman Lundberg Woessner & Kluth P A, July 22, 2003: US06597951 (204 worldwide citation)

A method and system for setting the operating parameters of a cardiac rhythm management device in which a plurality of parameter optimization algorithms are available. A measured feature of an electrophysiological signal such as QRS width has been shown to be useful in selecting among certain parame ...

Patrick Schauerte, Max Schaldach: Device for regulating heart rate and heart pumping force. Biotronik Mess und Therapiegeraete & Co Ingenieurbuero Berlin, Stephen L Grant, Hahn Loeser &plus Parks, February 10, 2004: US06690971 (203 worldwide citation)

A device for the therapy of supraventricular and ventricular bradycardial and tachycardial disrhythmias and/or for influencing the heart pumping force, including:

Donald N Jensen, Linda L Ruetz, Catherine R Condie, Yong Kyun Cho, Ulla Strobel, Scott Davie: Method and apparatus for monitoring heart rate and abnormal respiration. Medtronic, Girma Wolde Michael, Michael C Soldner, Paul H McDowall, June 22, 2004: US06752765 (194 worldwide citation)

An implantable device having enhanced capabilities for monitoring a patient's heart rate and respiration trends over extended periods of time is disclosed. The information collected by the implantable device may be stored and telemetered to an associated external device such as a device program ...

Yong Kyun Cho, Donald N Jensen, Luc R Mongeon: Method for providing a therapy to a patient involving modifying the therapy after detecting an onset of sleep in the patient, and implantable medical device embodying same. Medtronic, Girma Wolde Michael, Michael C Seldner, May 4, 2004: US06731984 (194 worldwide citation)

An implantable medical device system is described including an implantable medical device for implantation in a patient. One embodiment of the implantable medical device includes a therapy component for providing a therapy to the patient, a minute ventilation (MV) sensing circuit producing MV values ...

Edward A Schroeppel, David Prutchi, Andre G Routh: Implantable medical device responsive to heart rate variability analysis. Sulzer Intermedics, John R Merkling, May 12, 1998: US05749900 (194 worldwide citation)

A method and apparatus for evaluating heart rate variability of the heart of a person in order to forecast a cardiac event. A cardiac stimulator receives heart beat signals from the heart and determines a measurement of heart rate variability based on statistical data derived from the heart beat sig ...

Rodney W Salo, Brian D Pederson: Biomedical method and apparatus for controlling the administration of therapy to a patient in response to changes in physiological demand. Cardiac Pacemakers, Haugen and Nikolai, March 2, 1993: US05190035 (193 worldwide citation)

A biomedical apparatus capable of sensing changes in the heart's ventricular volume or stroke volume and then changing the operating performance of the device in a fashion as a function of stroke volume. A relatively low frequency signal (under 5 KHz) is applied between spaced electrodes disposed in ...

Kenneth A Collins, Philip J Maker: Implantable automatic and haemodynamically responsive cardioverting/defibrillating pacemaker with means for minimizing bradycardia support pacing voltages. Telectronics Pacing Systems, Gottlieb Rackman & Reisman, April 21, 1992: US05105810 (187 worldwide citation)

An implantable, battery-operated cardioverting/defibrillating pacemaker device with the ability to sense and respond to haemodynamic compromise is described. The ventricular pressure (VP) and electrical activity of the heart are sensed via one or more transvenous or epicardial devices. The filtered ...

Jonas Andersson, Johan Lidman, Carolina Bigert: Respirator rate/respiration depth detector and device for monitoring respiratory activity employing same. Pacesetter, Hill & Simpson, May 16, 2000: US06064910 (186 worldwide citation)

A device for determining the respiration rate and/or respiration depth of a patient includes a sensor for sensing heart sounds and an analyzer for analyzing the variation of the amplitude of the sensed heart sounds to determine the respiration rate and/or respiration depth from this amplitude variat ...