Patents by Inventor Jeffrey J. Louwagie

Jeffrey J. Louwagie 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: 11904175
    Abstract: A battery configured to support a relatively high rate of energy discharge relative to its capacity for energy intensive therapy delivery. The battery includes a feedthrough insulator cap disposed within the interior of the battery on at least a portion of a ferrule, at least a portion of an insulator, and at least a portion of a pin, which define a feedthrough extending through an enclosure of the battery; a first electrode disposed within the enclosure and electrically coupled to the pin; a second electrode disposed within the enclosure and separated a distance from the first electrode; and an electrolyte disposed between the first electrode and the second electrode. During operation of the battery, the feedthrough insulator cap reduces dendrite formation on at least a portion of the ferrule, the pin, or both.
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: February 20, 2024
    Assignee: Medtronic, Inc.
    Inventors: Jeffrey J. Louwagie, Richard W. Swenson, Joel Hoepner, David J. DeSmet
  • Publication number: 20230191139
    Abstract: A battery configured to support a relatively high rate of energy discharge relative to its capacity for energy intensive therapy delivery. The battery includes a feedthrough insulator cap disposed within the interior of the battery on at least a portion of a ferrule, at least a portion of an insulator, and at least a portion of a pin, which define a feedthrough extending through an enclosure of the battery; a first electrode disposed within the enclosure and electrically coupled to the pin; a second electrode disposed within the enclosure and separated a distance from the first electrode; and an electrolyte disposed between the first electrode and the second electrode. During operation of the battery, the feedthrough insulator cap reduces dendrite formation on at least a portion of the ferrule, the pin, or both.
    Type: Application
    Filed: February 23, 2023
    Publication date: June 22, 2023
    Inventors: Jeffrey J. Louwagie, Richard W. Swenson, Joel Hoepner, David J. DeSmet
  • Publication number: 20220347485
    Abstract: In some examples, a battery assembly for an implantable medical device. The battery assembly may include an electrode stack comprising a plurality of electrode plates, wherein the plurality of electrode plates comprises a first electrode plate including a first tab extending from the first electrode plate and a second electrode plate including a second tab extending from the second electrode plate; a spacer between the first tab and the second tab; and a rivet extending through the first tab, second tab, and spacer, wherein the rivet is configured to mechanically attach the first tab, second tab, and spacer to each other.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 3, 2022
    Inventors: Jeffrey J. Louwagie, Paul B. Aamodt, Vincent Brama, Nicholas H. Finstrom, Michael B. Hintz, Vadim A. Yakovlev, Kevin D. O'Connell, Richard W. Swenson, Brian P. Schmidt, Joseph J. Viavattine, Puqiang Zhang, Hailiang Zhao, Chao Hu
  • Patent number: 11413466
    Abstract: In some examples, a battery assembly for an implantable medical device. The battery assembly may include an electrode stack comprising a plurality of electrode plates, wherein the plurality of electrode plates comprises a first electrode plate including a first tab extending from the first electrode plate and a second electrode plate including a second tab extending from the second electrode plate; a spacer between the first tab and the second tab; and a rivet extending through the first tab, second tab, and spacer, wherein the rivet is configured to mechanically attach the first tab, second tab, and spacer to each other.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: August 16, 2022
    Assignee: Medtronic, Inc.
    Inventors: Jeffrey J. Louwagie, Paul B. Aamodt, Vincent Brama, Nicholas H. Finstrom, Michael B. Hintz, Vadim A. Yakovlev, Kevin D. O'Connell, Richard W. Swenson, Brian P. Schmidt, Joseph J. Viavattine, Puqiang Zhang, Hailiang Zhao, Chao Hu
  • Publication number: 20210196961
    Abstract: In some examples, a battery assembly for an implantable medical device. The assembly includes a housing, an electrode stack comprising a plurality of electrode plates disposed inside the housing, and an intermediate member configured to align the electrode stack at a fixed position within the housing, the intermediate member comprising a plurality of side walls, and at least one protrusion disposed on an exterior surface of the side walls, wherein the at least one protrusion is in thermal contact with an interior surface of the housing.
    Type: Application
    Filed: November 13, 2020
    Publication date: July 1, 2021
    Inventors: Jeffrey J. Louwagie, Joseph J. Viavattine, Richard W. Swenson, Jason P. Weiand
  • Publication number: 20200360702
    Abstract: A battery configured to support a relatively high rate of energy discharge relative to its capacity for energy intensive therapy delivery. The battery includes a feedthrough insulator cap disposed within the interior of the battery on at least a portion of a ferrule, at least a portion of an insulator, and at least a portion of a pin, which define a feedthrough extending through an enclosure of the battery; a first electrode disposed within the enclosure and electrically coupled to the pin; a second electrode disposed within the enclosure and separated a distance from the first electrode; and an electrolyte disposed between the first electrode and the second electrode. During operation of the battery, the feedthrough insulator cap reduces dendrite formation on at least a portion of the ferrule, the pin, or both.
    Type: Application
    Filed: March 4, 2020
    Publication date: November 19, 2020
    Inventors: Jeffrey J. Louwagie, Richard W. Swenson, Joel Hoepner, David J. DeSmet
  • Publication number: 20200330774
    Abstract: In some examples, a battery assembly for an implantable medical device. The battery assembly may include an electrode stack comprising a plurality of electrode plates, wherein the plurality of electrode plates comprises a first electrode plate including a first tab extending from the first electrode plate and a second electrode plate including a second tab extending from the second electrode plate; a spacer between the first tab and the second tab; and a rivet extending through the first tab, second tab, and spacer, wherein the rivet is configured to mechanically attach the first tab, second tab, and spacer to each other.
    Type: Application
    Filed: April 6, 2020
    Publication date: October 22, 2020
    Inventors: Jeffrey J. Louwagie, Paul B. Aamodt, Vincent Brama, Nicholas H. Finstrom, Michael B. Hintz, Vadim A. Yakovlev, Kevin D. O'Connell, Richard W. Swenson, Brian P. Schmidt, Joseph J. Viavattine, Puqiang Zhang, Hailiang Zhao, Chao Hu
  • Patent number: 9061373
    Abstract: A component of an implantable medical device may include a first member, a second member, and a composite seam weld formed between the first member and the second member. In some examples, the composite seam weld includes a continuous wave (CW)-welded portion formed using CW welding and a pulse-welded portion formed using pulsed welding. A first end of the pulse-welded portion may partially overlap a first end of the CW-welded portion and may be offset from the first end of the CW-welded portion in a direction substantially perpendicular to a longitudinal orientation of the first end of the CW-welded portion. Techniques for forming composite seam welds are also described.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: June 23, 2015
    Assignee: Medtronic, Inc.
    Inventors: Pankaj Mohan, David J. Buendorf, Jeffrey J. Louwagie
  • Publication number: 20130136979
    Abstract: A component of an implantable medical device may include a first member, a second member, and a composite seam weld formed between the first member and the second member. In some examples, the composite seam weld includes a continuous wave (CW)-welded portion formed using CW welding and a pulse-welded portion formed using pulsed welding. A first end of the pulse-welded portion may partially overlap a first end of the CW-welded portion and may be offset from the first end of the CW-welded portion in a direction substantially perpendicular to a longitudinal orientation of the first end of the CW-welded portion. Techniques for forming composite seam welds are also described.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 30, 2013
    Applicant: MEDTRONIC, INC.
    Inventors: Pankaj Mohan, David J. Buendorf, Jeffrey J. Louwagie
  • Patent number: 8179663
    Abstract: A capacitor is presented that includes a housing, an electrode assembly, a liner, and a fill port. The liner is located between the housing and the electrode assembly. The liner includes a recessed portion. A fill port extends through the housing across from the recessed portion in the liner. A gap is formed between the recessed portion and the fill port.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: May 15, 2012
    Assignee: Medtronic, Inc.
    Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland
  • Patent number: 8040659
    Abstract: A capacitor is presented that includes a housing, an electrode stack, a liner, and a fill port. The liner is located between the housing and the electrode stack. The liner includes a recessed portion. A fill port extends through the housing across from the recessed portion in the liner. A gap is formed between the recessed portion and the fill port.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: October 18, 2011
    Assignee: Medtronic, Inc.
    Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland
  • Publication number: 20100304213
    Abstract: A method of manufacturing an energy storage device for a medical device includes enclosing a cell assembly in a case. The case includes a filling aperture. The filling aperture includes an inner surface that is integral to the case so as to be monolithic. The case is free of a separate fill port tube. Moreover, the method includes introducing an electrolyte into the case through the filling aperture and hermetically sealing the filling aperture to form a first seal of the filling aperture that is free of a filler material. The method additionally includes hermetically sealing the sealing member to the case to form a second seal of the filling aperture.
    Type: Application
    Filed: November 18, 2009
    Publication date: December 2, 2010
    Applicant: MEDTRONIC, INC.
    Inventors: Stephanie Breimon, Stephen Daniel Arco, Bernard Frank Heller, JR., Pankaj Mohan, Walter C. Sunderland, Paul M. Boucher, Jeffrey J. Louwagie
  • Publication number: 20100232089
    Abstract: A capacitor is presented that includes a housing, an electrode stack, a liner, and a fill port. The liner is located between the housing and the electrode stack. The liner includes a recessed portion. A fill port extends through the housing across from the recessed portion in the liner. A gap is formed between the recessed portion and the fill port.
    Type: Application
    Filed: May 27, 2010
    Publication date: September 16, 2010
    Applicant: Medtronic, Inc.
    Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland
  • Patent number: 7733631
    Abstract: A capacitor is presented that includes a housing, an electrode stack, a liner, and a fill port. The liner is located between the housing and the electrode stack. The liner includes a recessed portion. A fill port extends through the housing across from the recessed portion in the liner. A gap is formed between the recessed portion and the fill port.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: June 8, 2010
    Assignee: Medtronic, Inc.
    Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland
  • Publication number: 20080304209
    Abstract: A capacitor is presented that includes a housing, an electrode assembly, a liner, and a fill port. The liner is located between the housing and the electrode assembly. The liner includes a recessed portion. A fill port extends through the housing across from the recessed portion in the liner. A gap is formed between the recessed portion and the fill port.
    Type: Application
    Filed: May 5, 2008
    Publication date: December 11, 2008
    Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland