Patents by Inventor Lon E. Smith

Lon E. Smith 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).

  • Medical leads with frequency independent magnetic resonance imaging protection
    Patent number: 8768486
    Abstract: A medical device having a frequency independent circuit that substantially reduces induced currents in a lead assembly and at a tissue interface. The frequency independent circuit configures an electrical path such that a stimulation pulse travels from the medical device to a selected tissue, and a current induced by an external changing electromagnetic signal is prevented from travelling the electrical path from the selected tissue to the medical device.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: July 1, 2014
    Assignee: Medtronic, Inc.
    Inventors: Robert W. Gray, Stuart G. MacDonald, Lon E. Smith, Jr.
  • Medical leads with frequency independent magnetic resonance imaging protection
    Patent number: 7865247
    Abstract: A medical device having a diode configuration in a lead assembly that substantially reduces induced currents in a lead assembly and at a tissue interface. The diodes configure an electrical path such that a stimulation pulse travels from the medical device to a selected tissue, and a current induced by an external changing electromagnetic signal is reduced and/or prevented from travelling the electrical path from the selected tissue to the medical device. The diodes may be at least partially contained in an electrode of the medical device.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: January 4, 2011
    Assignee: Medtronic, Inc.
    Inventors: Lon E. Smith, Jr., Stuart G. MacDonald, Robert W. Gray
  • MEDICAL LEADS WITH FREQUENCY INDEPENDENT MAGNETIC RESONANCE IMAGING PROTECTION
    Publication number: 20080154346
    Abstract: A medical device having a diode configuration in a lead assembly that substantially reduces induced currents in a lead assembly and at a tissue interface. The diodes configure an electrical path such that a stimulation pulse travels from the medical device to a selected tissue, and a current induced by an external changing electromagnetic signal is reduced and/or prevented from travelling the electrical path from the selected tissue to the medical device. The diodes may be at least partially contained in an electrode of the medical device.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 26, 2008
    Applicant: MEDTRONIC, INC.
    Inventors: Lon E. SMITH, Stuart G. MacDONALD, Robert W. GRAY
  • MEDICAL LEADS WITH FREQUENCY INDEPENDENT MAGNETIC RESONANCE IMAGING PROTECTION
    Publication number: 20080147154
    Abstract: A medical device having a frequency independent circuit that substantially reduces induced currents in a lead assembly and at a tissue interface. The frequency independent circuit configures an electrical path such that a stimulation pulse travels from the medical device to a selected tissue, and a current induced by an external changing electromagnetic signal is prevented from travelling the electrical path from the selected tissue to the medical device.
    Type: Application
    Filed: December 10, 2007
    Publication date: June 19, 2008
    Applicant: MEDTRONIC, INC.
    Inventors: Robert W. Gray, Stuart G. MacDonald, Lon E. Smith