Patents by Inventor Arpitha Ravishankar

Arpitha Ravishankar 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).

  • Multi-vector implantable cardioverter-defibrillator systems and methods with improved electrical symmetry
    Patent number: 11331507
    Abstract: Implantable cardioverter device (ICD) systems capable of delivering a multi-vector defibrillation shock, and methods for use therewith, are described herein. Such an ICD system can include a defibrillation charge capacitor, a charge circuit, first, second, and third electrodes, switches, a controller, and first, second and third filters. The defibrillation charge capacitor is coupled between a first voltage rail and a second voltage rail. The first filter is coupled between the first and second electrodes, and the second filter is coupled between the second and third electrodes, so that the first and second filters can shunt EMI signals. The third filter is coupled between the first and third electrodes and configured to provide for electrical symmetry when the first, second, and third electrodes are used to deliver a multi-vector defibrillation shock. Such filters, which can be implemented using capacitors, can be used to make the ICD system MRI compatible.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 17, 2022
    Assignee: Pacesetter, Inc.
    Inventors: Jeffery Crook, Eiji Shirai, Arpitha Ravishankar
  • MULTI-VECTOR IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR SYSTEMS AND METHODS WITH IMPROVED ELECTRICAL SYMMETRY
    Publication number: 20200306553
    Abstract: Implantable cardioverter device (ICD) systems capable of delivering a multi-vector defibrillation shock, and methods for use therewith, are described herein. Such an ICD system can include a defibrillation charge capacitor, a charge circuit, first, second, and third electrodes, switches, a controller, and first, second and third filters. The defibrillation charge capacitor is coupled between a first voltage rail and a second voltage rail. The first filter is coupled between the first and second electrodes, and the second filter is coupled between the second and third electrodes, so that the first and second filters can shunt EMI signals. The third filter is coupled between the first and third electrodes and configured to provide for electrical symmetry when the first, second, and third electrodes are used to deliver a multi-vector defibrillation shock. Such filters, which can be implemented using capacitors, can be used to make the ICD system MRI compatible.
    Type: Application
    Filed: October 25, 2019
    Publication date: October 1, 2020
    Applicant: Pacesetter, Inc.
    Inventors: Jeffery Crook, Eiji Shirai, Arpitha Ravishankar