1
Daniel Felipe Ortega, Alberto German Giniger, Qingsheng Zhu, J Edward Shapland: Ventricular pacing. Action Medical, Crawford Maunu PLLC, March 31, 2009: US07512440 (26 worldwide citation)

A method and apparatus are disclosed for treating a condition of a patient's heart includes placing a first electrode and a second electrode in a right ventricle of the heart. A reference electrode is placed within the patient and internal or external to the heart. A pacing signal is generated inclu ...


2
Qingsheng Zhu, Daniel Felipe Ortega: Endocardial pacing devices and methods useful for resynchronization and defibrillation. Cardiac Pacemakers, Schwegman Lundberg & Woessner P A, August 23, 2011: US08005544 (22 worldwide citation)

Various methods and apparatus are implemented for modifying cardiac operation, for treating a condition of a patient's heart, and for monitoring cardiac operation. An electrode arrangement is used to capture the myocardium for re-synchronization of the left and right ventricles by providing first an ...


3
Qingsheng Zhu, Daniel Felipe Ortega: Endocardial pacing relating to conduction abnormalities. Cardiac Pacemakers, Schwegman Lundberg & Woessner P A, August 30, 2011: US08010192 (22 worldwide citation)

Various systems, methods and arrangements are implemented in connection with ventricular pacing. One such method relates to a method for use in connection with ventricular pacing of a left ventricle of a heart from a pacing lead located in the right ventricle. Ventricular function of the heart is se ...


4
Qingsheng Zhu, Daniel Felipe Ortega: Systems, devices and methods relating to endocardial pacing for resynchronization. Cardiac Pacemakers, Schwegman Lundberg & Woessner P A, September 6, 2011: US08014861 (21 worldwide citation)

Tools and methods are particularly suited for certain cardiac conditions advantaged by pacing of the right and left ventricles from a lead in the right ventricle, e.g., to facilitate mechanically and/or electrically synchronous contractions for resynchronization. Certain aspects involve pacing and/o ...


5
Qingsheng Zhu, Daniel Felipe Ortega: Circuit-based devices and methods for pulse control of endocardial pacing in cardiac rhythm management. Cardiac Pacemakers, Schwegman Lundberg & Woessner P A, November 1, 2011: US08050756 (20 worldwide citation)

Tools and methods are particularly suited for certain cardiac conditions involving use of a catheter for pacing of the right and left ventricles from a lead in the right ventricle, e.g., to facilitate mechanically and/or electrically synchronous contractions for resynchronization. Certain aspects in ...


6
Qingsheng Zhu, Daniel Felipe Ortega: Systems, devices and methods for monitoring efficiency of pacing. Cardiac Pacemakers, Schwegman Lundberg & Woessner P A, August 30, 2011: US08010191 (20 worldwide citation)

Various systems, methods, devices and arrangements are implemented for use in pacing of the heart. One implementation is directed to methods and systems for determining a pacing location in the right ventricle of a heart and near the His bundle. A pacing signal is delivered to the location in the ri ...


7
Qingsheng Zhu, Daniel Felipe Ortega, Julio Cesar Spinelli: Devices, methods, and systems including cardiac pacing. Cardiac Pacemakers, Schwegman Lundberg & Woessner P A, April 1, 2014: US08688234 (18 worldwide citation)

A pacing output circuit can be configured to generate a ventricular pacing signal configured to be delivered to an electrode near the His bundle in a right ventricle of a heart to pace the right and left ventricles and improve synchronization of at least one of the ventricles relative to intrinsic a ...


8
Qingsheng Zhu, Daniel Felipe Ortega, Julio C├ęsar Spinelli: Methods, devices and systems for single-chamber pacing using a dual-chamber pacing device. Cardiac Pacemakers, Schwegman Lundberg & Woessner P A, October 16, 2012: US08290586 (11 worldwide citation)

Various embodiments of the present invention are directed to systems, methods and devices for cardiac applications including those relating to pacing devices. One such device is directed to a cardiac rhythm therapy (CRT) device designed for dual chamber pacing using two pacing signals each having a ...


9
Qingsheng Zhu, Daniel Felipe Ortega: Devices and methods for steering electrical stimulation in cardiac rhythm management. Cardiac Pacemakers, Schwegman Lundberg & Woessner P A, December 4, 2012: US08326423 (11 worldwide citation)

Tools and methods are particularly suited for certain cardiac conditions involving use of a catheter for pacing of the right and left ventricles from a lead in the right ventricle, e.g., to facilitate mechanically and/or electrically synchronous contractions for resynchronization. Certain aspects in ...


10
Daniel Felipe Ortega, Alberto German Giniger: Methods for treating the physiological electric conduction of the heart. Cardiac Pacemakers, Schwegman Lundberg & QWoessner P A, April 23, 2013: US08428715 (10 worldwide citation)

Treating the physiological electric conduction of the heart includes methods that involve guiding an electrode to a location, near the His bundle of the heart, that is determined by pacing the heart and sensing signals in response thereto, and electrically bypassing a conduction abnormality of the h ...