Patents by Inventor Chris A. Bonnerup

Chris A. Bonnerup has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8145303
    Abstract: Methods and apparatus for treating fibrillation utilize biphasic waveforms. A cardiac stimulator includes a defibrillation circuit that uses a pulse width modulated capacitive discharge to generate various biphasic waveforms, one or more of which may be delivered to the heart to treat the fibrillation.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: March 27, 2012
    Assignee: Intermedics Inc.
    Inventors: Leo Rubin, Chris A. Bonnerup, Edward A. Schroeppel
  • Publication number: 20110144706
    Abstract: Methods and apparatus for treating fibrillation utilize biphasic waveforms. A cardiac stimulator includes a defibrillation circuit that uses a pulse width modulated capacitive discharge to generate various biphasic waveforms, one or more of which may be delivered to the heart to treat the fibrillation.
    Type: Application
    Filed: February 17, 2011
    Publication date: June 16, 2011
    Inventors: Leo Rubin, Chris A. Bonnerup, Edward A. Schroeppel
  • Patent number: 7899530
    Abstract: Methods and apparatus for treating fibrillation utilize biphasic waveforms. A cardiac stimulator includes a defibrillation circuit that uses a pulse width modulated capacitive discharge to generate various biphasic waveforms, one or more of which may be delivered to the heart to treat the fibrillation.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: March 1, 2011
    Assignee: Intermedics Inc.
    Inventors: Leo Rubin, Chris A. Bonnerup, Edward A. Schroeppel
  • Publication number: 20040186521
    Abstract: Methods and apparatus for treating fibrillation utilize biphasic waveforms. A cardiac stimulator includes a defibrillation circuit that uses a pulse width modulated capacitive discharge to generate various biphasic waveforms, one or more of which may be delivered to the heart to treat the fibrillation.
    Type: Application
    Filed: March 26, 2004
    Publication date: September 23, 2004
    Applicant: Intermedics Inc.
    Inventors: Leo Rubin, Chris A. Bonnerup, Edward A. Schroeppel
  • Patent number: 5782879
    Abstract: An implantable cardiac stimulator delivers a first electrical shock via implantable stimulating electrodes at a time when there is substantially no flow of blood. At least one of the stimulating electrodes is disposed in a blood flow path of the cardiovascular system. The first shock is of insufficient energy level to cause defibrillation. An electrical potential is measured as a function of time between the blood-contacting electrode and a reference electrode following delivery of the first shock to obtain a first potential equilibration function under no-flow conditions. A second therapeutic electrical shock, of sufficient energy level to effect defibrillation, is delivered via the stimulating electrodes. A second potential equilibration function is measured following delivery of the second shock. The first and second potential equilibration functions are compared, and if the two functions are sufficiently different in morphology, it is determined that blood is flowing.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 21, 1998
    Assignee: Sulzer Intermedics Inc.
    Inventors: John P. Rosborough, M. Zafar A. Munshi, Chris A. Bonnerup
  • Patent number: 5683443
    Abstract: The invention relates to an improved stimulation electrode for cardiac pacing and defibrillating, methods of manufacturing same, and methods of using same. Specifically, the electrodes of the invention by virtue of the methods of manufacturing and using, demonstrate improved capabilities of stimulating and sensing neuromuscular tissues. The electrodes have enhanced electrically-accessible surface areas which are coated with oxides of valve metals.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: November 4, 1997
    Assignee: Intermedics, Inc.
    Inventors: M. Zafar A. Munshi, Chris A. Bonnerup, John P. Rosborough
  • Patent number: 5654030
    Abstract: The invention relates to methods of making an improved stimulation electrode for cardiac pacing and defibrillating. Specifically, the electrodes of the invention by virtue of the methods of manufacturing and using, demonstrate improved capabilities of stimulating and sensing neuromuscular tissues. The electrodes have enhanced electrically-accessible surface areas which are coated with oxides of valve and noble metals.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: August 5, 1997
    Assignee: Intermedics, Inc.
    Inventors: M. Zafar A. Munshi, Chris A. Bonnerup