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).
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Patent number: 11904175Abstract: 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: GrantFiled: February 23, 2023Date of Patent: February 20, 2024Assignee: Medtronic, Inc.Inventors: Jeffrey J. Louwagie, Richard W. Swenson, Joel Hoepner, David J. DeSmet
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Publication number: 20230191139Abstract: 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: ApplicationFiled: February 23, 2023Publication date: June 22, 2023Inventors: Jeffrey J. Louwagie, Richard W. Swenson, Joel Hoepner, David J. DeSmet
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Publication number: 20220347485Abstract: 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: ApplicationFiled: July 14, 2022Publication date: November 3, 2022Inventors: 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
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Patent number: 11413466Abstract: 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: GrantFiled: April 6, 2020Date of Patent: August 16, 2022Assignee: 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
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Publication number: 20210196961Abstract: 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: ApplicationFiled: November 13, 2020Publication date: July 1, 2021Inventors: Jeffrey J. Louwagie, Joseph J. Viavattine, Richard W. Swenson, Jason P. Weiand
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Publication number: 20200360702Abstract: 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: ApplicationFiled: March 4, 2020Publication date: November 19, 2020Inventors: Jeffrey J. Louwagie, Richard W. Swenson, Joel Hoepner, David J. DeSmet
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Publication number: 20200330774Abstract: 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: ApplicationFiled: April 6, 2020Publication date: October 22, 2020Inventors: 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
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Patent number: 9061373Abstract: 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: GrantFiled: May 22, 2012Date of Patent: June 23, 2015Assignee: Medtronic, Inc.Inventors: Pankaj Mohan, David J. Buendorf, Jeffrey J. Louwagie
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Publication number: 20130136979Abstract: 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: ApplicationFiled: May 22, 2012Publication date: May 30, 2013Applicant: MEDTRONIC, INC.Inventors: Pankaj Mohan, David J. Buendorf, Jeffrey J. Louwagie
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Patent number: 8179663Abstract: 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: GrantFiled: May 5, 2008Date of Patent: May 15, 2012Assignee: Medtronic, Inc.Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland
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Patent number: 8040659Abstract: 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: GrantFiled: May 27, 2010Date of Patent: October 18, 2011Assignee: Medtronic, Inc.Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland
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Publication number: 20100304213Abstract: 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: ApplicationFiled: November 18, 2009Publication date: December 2, 2010Applicant: MEDTRONIC, INC.Inventors: Stephanie Breimon, Stephen Daniel Arco, Bernard Frank Heller, JR., Pankaj Mohan, Walter C. Sunderland, Paul M. Boucher, Jeffrey J. Louwagie
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Publication number: 20100232089Abstract: 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: ApplicationFiled: May 27, 2010Publication date: September 16, 2010Applicant: Medtronic, Inc.Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland
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Patent number: 7733631Abstract: 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: GrantFiled: October 31, 2005Date of Patent: June 8, 2010Assignee: Medtronic, Inc.Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland
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Publication number: 20080304209Abstract: 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: ApplicationFiled: May 5, 2008Publication date: December 11, 2008Inventors: Leo J. Brabeck, Jeffrey D. Chaput, Thomas M. Henderson, Thomas W. Kanitz, Jeffrey J. Louwagie, Christian S. Nielsen, Walter C. Sunderland