Qingsheng Zhu, Julio C Spinelli, Gerrard M Carlson: Accelerometer-based heart sound detection for autocapture. Cardiac Pacemakers, C G Mersereau, Nikolai & Mersereau P A, November 18, 2003: US06650940 (122 worldwide citation)

An implantable cardiac rhythm management device capable of automatically detecting intrinsic and evoked response of a patient's heart. The device operates in an automatic capture verification mode, wherein a global accelerometer signal is utilized to identify heart sounds (S

Bruce H KenKnight, Geng Zhang, Qingsheng Zhu: Autocapture determination for an implantable cardioverter defibrillator. Cardiac Pacemakers, Nikolai Mersereau & Dietz P A, January 2, 2001: US06169921 (113 worldwide citation)

A cardiac pacing/defibrillation system that enhances the ability of a cardiac pacer to automatically detect whether a pacing stimulus results in heart capture or contraction. The cardiac pacing/defibrillation system includes a pacing circuit that attenuates polarization voltages or “afterpotential” ...

Avram Scheiner, William Hsu, David M Flynn, Qingsheng Zhu, John E Heil, Ronald W Heil Jr, Curtis C Lindstrom, Robert S Booker III, Yayun Lin, Peter T Kelley, Jay A Warren, Gerrard M Carlson, Carol Werlein, Aaron W Janke, Mary Lee Cole, Jeffrey T Bartig, Gary W Goebel, Douglas A Heitkamp, Randall M Peterfeso: Single pass lead system. Cardiac Pacemakers, Schwegman Lundberg Woessner & Kluth P A, April 3, 2001: US06212434 (108 worldwide citation)

A single-pass endocardial lead electrode adapted for implantation in, on or about the heart and for connection to a system for monitoring or stimulating cardiac activity includes a lead body which is adapted for implantation within a single chamber of the heart, or multiple chambers of the heart. Th ...

Jeffrey E Stahmann, Kent Lee, Jesse W Hartley, Quan Ni, John D Hatlestad, Qingsheng Zhu, Krzysztof Z Siejko: Patient monitoring, diagnosis, and/or therapy systems and methods. Cardiac Pacemakers, Hollingsworth & Funk, August 31, 2010: US07787946 (100 worldwide citation)

Systems and methods involve an implantable device configured to perform at least one cardiac-related function, a patient-external respiratory therapy device, and a communication channel configured to facilitate communication between the implantable device and the respiratory therapy device. The impl ...

Qingsheng Zhu, Michael Lyden, Scott Freeberg, Laura Mepham: Cardiac management device with capability of noise detection in automatic capture verification. Cardiac Pacemakers, C G Mersereau, Nikolai & Mersereau P A, January 7, 2003: US06505071 (96 worldwide citation)

An implantable cardiac rhythm management device operable in an autothreshold or autocapture verification mode, wherein the rhythm management device is capable of detecting noise that affects signal characteristics of a sensed intracardial evoked response electrogram signal. The device includes a noi ...

Qingsheng Zhu, Mark Gryzwa, Geng Zhang, Arthur Olive: Adaptive evoked response sensing for automatic capture verification. Cardiac Pacemakers, Nikolai Mersereau & Dietz P A, February 20, 2001: US06192275 (95 worldwide citation)

An implantable cardiac rhythm management device adapted to receive and digitize electrocardiogram signals from leads placed on or in the heart and capable of automatically adjusting an evoked response detection threshold dependent upon a modulation of the amplitude of the evoked response. Respiratio ...

Qingsheng Zhu, Jeffrey E Stahmann, John Hatlestad: Implantable cardiac disease management device with trigger-stored polysomnogram and phonocardiogram. Cardiac Pacemakers, Thomas J Nikolai, Nikolai & Mersereau P A, October 26, 2004: US06810287 (89 worldwide citation)

Currently, brady, tachy and CRT devices all provide stored electrograms that record ambulatory electrograms with programmable trigger mechanisms. The present invention comprises an implantable device with additional capability that can store polysomnograms and phonocardiograms. The polysomnograms ca ...

Imad Libbus, Qingsheng Zhu, Scott Vanderlinde, Andrew P Kramer, Ankur Garg, Kristofer J James: System to provide myocardial and neural stimulation. Cardiac Pacemakers, Schwegman Lundberg & Woessner P A, February 9, 2010: US07660628 (85 worldwide citation)

Various aspects provide an implantable device. In various embodiments, the device comprises at least one port, where each port is adapted to connect a lead with an electrode to the device. The device further includes a stimulation platform, including a sensing circuit connected to the at least one p ...

Geng Zhang, Qingsheng Zhu, Laura Mepham, Jesse W Hartley: Method and apparatus for adjusting the sensing threshold of a cardiac rhythm management device. Cardiac Pacemakers, Schwegman Lundberg Woessner & Kluth P A, July 9, 2002: US06418343 (82 worldwide citation)

A method and apparatus for automatically adjusting the sensing threshold of cardiac rhythm management devices. The invention is particularly suited for implementation in devices such as implantable cardiac pacemakers and implantable cardioverter/defibrillators. A method and apparatus are provided in ...

Qingsheng Zhu, Jungkuk Kim, Arthur Olive, Jan Pieter Heemels: Pseudo-fusion management during automatic capture verification. Cardiac Pacemakers, Nikolai Mersereau & Dietz P A, March 14, 2000: US06038474 (81 worldwide citation)

A method for reducing the affects of intrinsic detection latency in a cardiac rhythm management device, wherein said method is initiated immediately prior to delivering a stimulation pulse to the heart tissue. A coincidence of intrinsic and cardiac rhythm management initiated stimulus or the deliver ...