Patents by Inventor Mark T. Marshall

Mark T. Marshall 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: 7064270
    Abstract: An implantable component including a feedthrough assembly and a method for forming the feedthrough assembly wherein a coating forming a fluid barrier over an insulator, an insulator-to-terminal pin interface and an insulator-to-ferrule interface is incorporated.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: June 20, 2006
    Assignee: Medtronic, Inc.
    Inventors: Mark T. Marshall, James R. Svensk, Kenneth E. Cobian, Richard D. Ries
  • Patent number: 6951664
    Abstract: An implantable component including a feedthrough assembly and a method for forming the feedthrough assembly wherein a coating forming a fluid barrier over an insulator, an insulator-to-terminal pin interface and an insulator-to-ferrule interface is incorporated.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: October 4, 2005
    Assignee: Medtronic, Inc.
    Inventors: Mark T. Marshall, James R. Svensk, Kenneth E. Cobian, Richard D. Ries
  • Patent number: 6903268
    Abstract: An implantable component including a feedthrough assembly and a method for forming the feedthrough assembly wherein a coating forming a fluid barrier over an insulator, an insulator-to-terminal pin interface and an insulator-to-ferrule interface is incorporated.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: June 7, 2005
    Assignee: Medtronic, Inc.
    Inventors: Mark T. Marshall, James R. Svensk, Kenneth E. Cobian, Richard D. Ries
  • Publication number: 20040230275
    Abstract: A medical electrical lead includes a first low voltage electrode adapted for intimate contact with tissue at an implant site, in order to provide pacing stimulation, and a second low voltage electrode positioned in proximity to the first electrode, isolated from the first electrode and adapted to function in conjunction with the first electrode to provide bipolar sensing of near-field signals. A porous layer is formed over the second electrode; the porous layer allows conduction therethrough while preventing contact between the second electrode and tissue in proximity to the implant site.
    Type: Application
    Filed: May 15, 2003
    Publication date: November 18, 2004
    Inventors: Mark T. Marshall, Teresa A. Whitman, Eduardo N. Warman, Jeffrey M. Gillberg, Matthew D. Bonner, Mark L. Brown
  • Publication number: 20040230276
    Abstract: An implantable electrical medical system comprises a low voltage cathode electrode assembly, including a cathode surface adapted for intimate contact with electrically active tissue, and a low voltage anode electrode assembly, including an anode surface and a porous layer extending over the anode surface. The cathode surface and the anode surface function as a bipolar pair for pacing and the porous layer extending over the anode surface allows conduction therethrough and prevents the anode surface from contacting the electrically active tissue in order to prevent anodal stimulation.
    Type: Application
    Filed: July 29, 2003
    Publication date: November 18, 2004
    Inventors: Mark T. Marshall, Teresa A. Whitman, Eduardo N. Warman, Jeffrey M. Gillberg, Matthew D. Bonner, Mark L. Brown
  • Patent number: 6478777
    Abstract: An introducer that includes a tubular outer sheath having proximal and distal ends, a tubular inner sheath having proximal and distal ends, rotatably mounted within the outer sheath, and a knob, positioned at the proximal end of the inner sheath, so that the inner sheath is rotatable through the knob. A gripping mechanism is coupled to the distal end of the inner sheath and rotatable with the inner sheath to compressively engage a distal portion of a lead or catheter extending through the inner sheath in response to the rotation of the inner sheath through the knob.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: November 12, 2002
    Assignee: Medtronic, Inc.
    Inventors: Jordon D. Honeck, Mark T. Marshall
  • Patent number: 6256542
    Abstract: A medical electrical lead with a tip-ring assembly optimized to resist damage during extraction. The lead includes an elongated plastic tube and at least two elongated conductors mounted in the plastic tube. A tip-ring assembly is mounted to the distal end of the tube, the tip-ring assembly including a ring electrode coupled to one of the conductors, a tip electrode located distal to the ring electrode and coupled to another of the conductors and two molded plastic components separately fabricated of a plastic harder than the plastic tube, adhered to one another and together defining a circumferential groove in which the ring electrode is located and mechanically coupled to the tip electrode. The tip electrode may be provided with a proximally extending electrode shank covered by a tine sleeve which is fabricated of a plastic softer than the molded plastic components and is adhered to more distally located molded plastic component.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: July 3, 2001
    Assignee: Medtronic, Inc.
    Inventors: Mark T. Marshall, Bret R. Shoberg, Clare E. Padgett, Timothy G. Laske, Steven L. Waldhauser, Mark T. Stewart, Catherine E. Taylor, Kenneth W. Keeney
  • Patent number: 6066166
    Abstract: An implantable cardioversion/defibrillation lead having an elongated insulative lead body carrying a tip electrode located at its distal end and a cardioversion/defibrillation electrode located on the lead body, proximal to the tip electrode. An elongated conductor coupled to the tip electrode extends proximally within the lead body. At the proximal end of the lead body is a first connector assembly carrying a first connector and a second connector assembly carrying a second connector. An elongated, stranded or cabled conductor is coupled to the cardioversion/defibrillation electrode and to the second connector and extends uninterrupted therebetween. A cylindrical transition member is coupled to the first connector by means of a coiled conductor. A press-fit sleeve having a longitudinal lumen extending therethrough compresses the stranded or conductor between the press-fit sleeve and the transition member to provide electrical interconnection between the stranded or cabled conductor and the transition member.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: May 23, 2000
    Assignee: Medtronic, Inc.
    Inventors: Thomas C. Bischoff, Mark T. Marshall, James J. Snyder, Sandra F. Viktora
  • Patent number: 6052625
    Abstract: A medical electrical lead with a tip-ring assembly optimized to resist damage during extraction. The lead includes an elongated plastic tube and at least two elongated conductors mounted in the plastic tube. A tip-ring assembly is mounted to the distal end of the tube, the tip-ring assembly including a ring electrode coupled to one of the conductors, a tip electrode located distal to the ring electrode and coupled to another of the conductors and two molded plastic components separately fabricated of a plastic harder than the plastic tube, adhered to one another and together defining a circumferential groove in which the ring electrode is located and mechanically coupled to the tip electrode. The tip electrode may be provided with a proximally extending electrode shank covered by a tine sleeve which is fabricated of a plastic softer than the molded plastic components and is adhered to more distally located molded plastic component.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: April 18, 2000
    Assignee: Medtronic, Inc.
    Inventor: Mark T. Marshall