Patents by Inventor BRANDON TYLER KEIL

BRANDON TYLER KEIL 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).

  • Publication number: 20210283409
    Abstract: Improved devices, circuits and methods of operation in implantable stimulus systems. An implantable defibrillator may comprise a charging circuit using a transformer to store and build up energy on an HV capacitor or capacitor stack, with the HV capacitor in turn coupled to an H-bridge output circuit having low and high sides for issuing therapy. In the output current path, a current controlling circuitry is placed between the H-bridge and ground, allowing the greater flexibility in the selection of switching devices, and drivers for such devices, in the H-bridge circuit and/or enabling circuits between the H-bridge and the HV capacitor or other therapy circuit.
    Type: Application
    Filed: March 12, 2021
    Publication date: September 16, 2021
    Applicant: CARDIAC PACEMAKERS, INC.
    Inventors: BRANDON TYLER KEIL, PAUL JOHN MCNAMEE, WILLIAM J. LINDER
  • Publication number: 20210252299
    Abstract: Improved devices, circuits and methods of operation in implantable stimulus systems. An implantable defibrillator may comprise an H-bridge output circuit having low and high sides, with a current controlling circuit coupled to the high side of the H-bridge output circuit and a current monitoring circuit coupled to the low side of the H-bridge output circuit. A bootstrap design or a DC isolating circuit or circuit element may be used in the current controlling circuit.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 19, 2021
    Applicant: CARDIAC PACEMAKERS, INC.
    Inventor: BRANDON TYLER KEIL
  • Publication number: 20210257849
    Abstract: Improved devices, circuits and methods of operation in implantable stimulus systems. An implantable defibrillator may comprise a charging circuit using a transformer to store and build up energy on an HV capacitor or capacitor stack, with the HV capacitor in turn coupled to an H-bridge output circuit having low and high sides for issuing therapy. A current monitoring circuitry is provided on the low side of the H-Bridge and used to form a feedback loop to control current into a transformer that converts battery voltage to a signal that charges the HV capacitor to control current through the H-bridge.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 19, 2021
    Applicant: CARDIAC PACEMAKERS, INC.
    Inventors: BRANDON TYLER KEIL, WILLIAM J. LINDER, KEITH R. MAILE
  • Publication number: 20210252296
    Abstract: Improved devices, circuits and methods of operation in implantable stimulus systems. An implantable defibrillator may comprise an H-bridge output circuit having low and high sides, with a current controlling circuit coupled to the high side of the H-bridge output circuit and a current monitoring circuit coupled to the low side of the H-bridge output circuit. Alternate current paths to the output of the H-bridge, or to the H-Bridge itself, are used for delivering different therapies to the patient.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 19, 2021
    Applicant: CARDIAC PACEMAKERS, INC.
    Inventors: BRANDON TYLER KEIL, WILLIAM J. LINDER, KEITH R. MAILE