Patents by Inventor David E. Manahan

David E. Manahan 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).

  • Controlling effects caused by exposure of an implantable medical device to a disruptive energy field
    Patent number: 8761886
    Abstract: Techniques are described for controlling effects caused when an implantable medical device (IMD) is subject to a disruptive energy field. The IMD may include an implantable lead that includes one or more electrodes. The IMD may further include a first component having a parasitic inductance. The IMD may further include a second component having a reactance. In some examples, the reactance of the second component may be selected based on the parasitic inductance of the first component such that an amount of energy reflected along the lead in response to energy produced by an electromagnetic energy source is below a selected threshold. In additional examples, the parasitic inductance of the first component and the reactance of the second component are configured such that an amount of energy reflected along the lead in response to a frequency of electromagnetic energy is below a selected threshold.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: June 24, 2014
    Assignee: Medtronic, Inc.
    Inventors: Christopher C. Stancer, Piotr J. Przybyszewski, Sandy K. Wixon, Joel Peltier, Sung-Min Park, David E. Manahan, Jonathan Edmonson, Ben W. Herberg
  • Controlling effects caused by exposure of an implantable medical device to a disruptive energy field
    Patent number: 8494649
    Abstract: Techniques are described for controlling effects caused when an implantable medical device (IMD) is subject to a disruptive energy field. The IMD may include an implantable lead that includes one or more electrodes. The IMD may further include a first component having a parasitic inductance. The IMD may further include a second component having a reactance. In some examples, the reactance of the second component may be selected based on the parasitic inductance of the first component such that an amount of energy reflected along the lead in response to energy produced by an electromagnetic energy source is below a selected threshold. In additional examples, the parasitic inductance of the first component and the reactance of the second component are configured such that an amount of energy reflected along the lead in response to a frequency of electromagnetic energy is below a selected threshold.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: July 23, 2013
    Assignee: Medtronic, Inc.
    Inventors: Christopher C. Stancer, Piotr J. Przybyszewski, Sandy K. Wixon, Joel Peltier, Sung-Min Park, David E. Manahan, Jonathan Edmonson, Ben W. Herberg
  • Isolation circuitry and method for gradient field safety in an implantable medical device
    Patent number: 8050763
    Abstract: An implantable medical device is provided for isolating an elongated medical lead from internal device circuitry in the presence of a gradient magnetic or electrical field. The device includes an isolation circuit adapted to operatively connect an internal circuit to the medical lead in a first operative state and to electrically isolate the medical lead from the internal circuit in a second operative state.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: November 1, 2011
    Assignee: Medtronic, Inc.
    Inventors: Lonny V. Cabelka, David E. Manahan, Forrest C. M. Pape, John D. Wahlstrand
  • CONTROLLING EFFECTS CAUSED BY EXPOSURE OF AN IMPLANTABLE MEDICAL DEVICE TO A DISRUPTIVE ENERGY FIELD
    Publication number: 20110106218
    Abstract: Techniques are described for controlling effects caused when an implantable medical device (IMD) is subject to a disruptive energy field. The IMD may include an implantable lead that includes one or more electrodes. The IMD may further include a first component having a parasitic inductance. The IMD may further include a second component having a reactance. In some examples, the reactance of the second component may be selected based on the parasitic inductance of the first component such that an amount of energy reflected along the lead in response to energy produced by an electromagnetic energy source is below a selected threshold. In additional examples, the parasitic inductance of the first component and the reactance of the second component are configured such that an amount of energy reflected along the lead in response to a frequency of electromagnetic energy is below a selected threshold.
    Type: Application
    Filed: June 30, 2010
    Publication date: May 5, 2011
    Applicant: Medtronic, Inc.
    Inventors: Christopher C. Stancer, Piotr J. Przybyszewski, Sandy K. Wixon, Joel Peltier, Sung-Min Park, David E. Manahan, Jonathan Edmonson, Ben W. Herberg
  • CONTROLLING EFFECTS CAUSED BY EXPOSURE OF AN IMPLANTABLE MEDICAL DEVICE TO A DISRUPTIVE ENERGY FIELD
    Publication number: 20110106217
    Abstract: Techniques are described for controlling effects caused when an implantable medical device (IMD) is subject to a disruptive energy field. The IMD may include an implantable lead that includes one or more electrodes. The IMD may further include a first component having a parasitic inductance. The IMD may further include a second component having a reactance. In some examples, the reactance of the second component may be selected based on the parasitic inductance of the first component such that an amount of energy reflected along the lead in response to energy produced by an electromagnetic energy source is below a selected threshold. In additional examples, the parasitic inductance of the first component and the reactance of the second component are configured such that an amount of energy reflected along the lead in response to a frequency of electromagnetic energy is below a selected threshold.
    Type: Application
    Filed: June 30, 2010
    Publication date: May 5, 2011
    Applicant: Medtronic, Inc.
    Inventors: Christopher C. Stancer, Piotr J. Przybyszewski, Sandy K. Wixon, Joel Peltier, Sung-Min Park, David E. Manahan, Jonathan Edmonson, Ben W. Herberg
  • ISOLATION CIRCUITRY AND METHOD FOR GRADIENT FIELD SAFETY IN AN IMPLANTABLE MEDICAL DEVICE
    Publication number: 20100198309
    Abstract: An implantable medical device is provided for isolating an elongated medical lead from internal device circuitry in the presence of a gradient magnetic or electrical field. The device includes an isolation circuit adapted to operatively connect an internal circuit to the medical lead in a first operative state and to electrically isolate the medical lead from the internal circuit in a second operative state.
    Type: Application
    Filed: April 13, 2010
    Publication date: August 5, 2010
    Inventors: Lonny V. Cabelka, David E. Manahan, Forrest C.M. Pape, John D. Wahlstrand
  • Isolation circuitry and method for gradient field safety in an implantable medical device
    Patent number: 7729770
    Abstract: An implantable medical device is provided for isolating an elongated medical lead from internal device circuitry in the presence of a gradient magnetic or electrical field. The device includes an isolation circuit adapted to operatively connect an internal circuit to the medical lead in a first operative state and to electrically isolate the medical lead from the internal circuit in a second operative state.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: June 1, 2010
    Assignee: Medtronic, Inc.
    Inventors: Lonny V. Cabelka, David E. Manahan, Forrest C. M. Pape, John D. Wahlstrand