Patents by Inventor David B. Engmark
David B. Engmark 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: 9675808Abstract: An implantable medical device includes a housing forming an internal cavity, the housing defining a profile with a height and a width and further defining a thickness perpendicular to its profile. The thickness of the housing is shorter than both the height and the width of the profile of the housing. The implantable medical device further includes at least one battery within the internal cavity, at least one capacitor adjacent the battery within the internal cavity, the capacitor and the battery being located along a common plane within the internal cavity, and circuitry within the internal cavity. The circuitry extends over both the battery and the capacitor within the internal cavity such that the circuitry is in a stacked arrangement relative to the battery and the capacitor.Type: GrantFiled: September 27, 2011Date of Patent: June 13, 2017Assignee: Medtronic, Inc.Inventors: David B. Engmark, Andrew J. Ries, Todd H. Schaefer
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Patent number: 9403022Abstract: An implantable medical device includes a housing; at least one module enclosed within the housing and configured to at least one of generate an electrical stimulation therapy for delivery to a patient or monitor a physiological parameter of the patient; one or more feedthroughs extending through the housing; a header assembly including one or more electrical connectors electrically coupled to the module via the feedthroughs; and a preformed gasket compressed between the housing and the header assembly forming a seal to electrically isolate the feedthroughs from an external environment.Type: GrantFiled: January 29, 2010Date of Patent: August 2, 2016Assignee: Medtronic, Inc.Inventors: Andrew J. Ries, David B. Engmark, John E. Kast, Jean-Francois Fischer
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Patent number: 9242108Abstract: Structures and methods relating to electrodes for incorporation into a feedthrough with a profile adapted for subcutaneous sensing of physiologic and cardiac signals. Electrode assemblies are adapted for integration with feedthroughs and provide reliable insulation from the implantable medical device housing. Various structures and manufacturing processes are implemented to provide a large sensing surface with a low profile. The subcutaneous sensing electrode assembly can provide a leadless sensing system and further enhances installation and follow-up procedures.Type: GrantFiled: July 30, 2010Date of Patent: January 26, 2016Assignee: Medtronic, Inc.Inventors: Eric John Wengreen, Andrew J. Ries, David J. Saltzman, Randy S. Roles, Scott J. Robinson, David B. Engmark, John Eric Lovins
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Patent number: 8473056Abstract: An implantable medical device (IMD) having a hermetic housing formed from a case and a cover each having an exterior surface and an interior surface. An IMD component is mounted to the interior surface of the cover and has an electrical contact. A hybrid circuit is assembled in the case. The IMD component electrical contact is electrically coupled to the to the hybrid circuit assembled in the case.Type: GrantFiled: April 25, 2008Date of Patent: June 25, 2013Assignee: Medtronic, Inc.Inventors: David B. Engmark, Gary M. Grose, Todd H. Schaefer, Thomas I. Ceballos, Andrew J. Ries
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Publication number: 20130079600Abstract: An implantable medical device includes a housing forming an internal cavity, the housing defining a profile with a height and a width and further defining a thickness perpendicular to its profile. The thickness of the housing is shorter than both the height and the width of the profile of the housing. The implantable medical device further includes at least one battery within the internal cavity, at least one capacitor adjacent the battery within the internal cavity, the capacitor and the battery being located along a common plane within the internal cavity, and circuitry within the internal cavity. The circuitry extends over both the battery and the capacitor within the internal cavity such that the circuitry is in a stacked arrangement relative to the battery and the capacitor.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Applicant: MEDTRONIC, INC.Inventors: David B. Engmark, Andrew J. Ries, Todd H. Schaefer
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Patent number: 8373075Abstract: A multilayered feedthrough for an implantable medical device includes a substrate having a first edge, a second edge, and a substrate length. A plurality of traces is formed on the substrate and extends along the substrate length. The plurality of traces extends to the first and second edges of the substrate. An insulator layer is formed on the substrate and the plurality of traces. A ground plane layer is formed on the insulator layer.Type: GrantFiled: October 29, 2009Date of Patent: February 12, 2013Assignee: Medtronic, Inc.Inventors: Gordon Orvis Munns, Greg Haubrich, David B. Engmark, Joyce Yamamoto, Simon Goldman, William Michael Brosnan, Brad Conrad Tischendorf, Andrew Jason Thom
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Patent number: 8295930Abstract: A medical device is electrically connected to a biological tissue for transmission of an electrical signal between the medical device and the biological tissue. The medical device includes a housing assembly and a control circuit assembly that controls the electrical signal. The control circuit assembly is enclosed within the housing assembly, and the control circuit assembly includes an electrically conductive terminal. The device further includes an electrical component at least partially enclosed within the housing assembly. The electrical component has a connecting member that electrically connects the electrical component to the control circuit assembly. The connecting member is resistance welded and bonded directly to the electrically conductive terminal of the control circuit assembly.Type: GrantFiled: September 30, 2009Date of Patent: October 23, 2012Assignee: Medtronic, Inc.Inventors: David B. Engmark, Doug Morelli, Hui Jin, David M. Johnson, Mathieu K. HoriƩ, Iryna Levina, Dominique Piguet
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Publication number: 20110190833Abstract: This disclosure includes an implantable medical device comprising: a housing; at least one module enclosed within the housing and configured to at least one of generate an electrical stimulation therapy for delivery to a patient or monitor a physiological parameter of the patient; one or more feedthroughs extending through the housing; a header assembly including one or more electrical connectors electrically coupled to the module via the feedthroughs; and a preformed gasket compressed between the housing and the header assembly forming a seal to electrically isolate the feedthroughs from an external environment.Type: ApplicationFiled: January 29, 2010Publication date: August 4, 2011Applicant: Medtronic, Inc.Inventors: Andrew J. Ries, David B. Engmark, John E. Kast, Jean-Francois Fischer
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Publication number: 20110102967Abstract: A multilayered feedthrough for an implantable medical device includes a substrate having a first edge, a second edge, and a substrate length. A plurality of traces is formed on the substrate and extends along the substrate length. The plurality of traces extends to the first and second edges of the substrate. An insulator layer is formed on the substrate and the plurality of traces. A ground plane layer is formed on the insulator layer.Type: ApplicationFiled: October 29, 2009Publication date: May 5, 2011Applicant: MEDTRONIC, INC.Inventors: Gordon Orvis Munns, Greg Haubrich, David B. Engmark, Joyce Yamamoto, Simon Goldman, William Michael Brosnan, Brad Conrad Tischendorf, Andrew Jason Thom
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Publication number: 20110077709Abstract: A medical device is electrically connected to a biological tissue for transmission of an electrical signal between the medical device and the biological tissue. The medical device includes a housing assembly and a control circuit assembly that controls the electrical signal. The control circuit assembly is enclosed within the housing assembly, and the control circuit assembly includes an electrically conductive terminal. The device further includes an electrical component at least partially enclosed within the housing assembly. The electrical component has a connecting member that electrically connects the electrical component to the control circuit assembly. The connecting member is resistance welded and bonded directly to the electrically conductive terminal of the control circuit assembly.Type: ApplicationFiled: September 30, 2009Publication date: March 31, 2011Applicant: MEDTRONIC, INC.Inventors: David B. Engmark, Doug Morelli, Hui Jin, David M. Johnson, Mathieu K. HoriƩ, Iryna Levina, Dominique Piguet
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Publication number: 20110029027Abstract: Structures and methods relating to electrodes for incorporation into a feedthrough with a profile adapted for subcutaneous sensing of physiologic and cardiac signals. Electrode assemblies are adapted for integration with feedthroughs and provide reliable insulation from the implantable medical device housing. Various structures and manufacturing processes are implemented to provide a large sensing surface with a low profile. The subcutaneous sensing electrode assembly can provide a leadless sensing system and further enhances installation and follow-up procedures.Type: ApplicationFiled: July 30, 2010Publication date: February 3, 2011Applicant: Medtronic, Inc.Inventors: Eric John Wengreen, Andrew J. Ries, David J. Saltzman, Randy S. Roles, Scott J. Robinson, David B. Engmark, John Eric Lovins
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Patent number: 7668597Abstract: A feedthrough array for use in an implantable medical device is provided including an insulator, a plurality of conductive feedthrough pins extending through the insulator, and a ferrule including a flange extending inwardly from a ferrule sidewall along at least a majority of a length of a first ferrule side. A capacitor is disposed over the insulator and conductively coupled to the ferrule flange.Type: GrantFiled: March 31, 2006Date of Patent: February 23, 2010Assignee: Medtronic, Inc.Inventors: David B. Engmark, Andrew J. Ries
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Publication number: 20090266573Abstract: An implantable medical device (IMD) having a hermetic housing formed from a case and a cover each having an exterior surface and an interior surface. An IMD component is mounted to the interior surface of the cover and has an electrical contact. A hybrid circuit is assembled in the case. The IMD component electrical contact is electrically coupled to the to the hybrid circuit assembled in the case.Type: ApplicationFiled: April 25, 2008Publication date: October 29, 2009Inventors: David B. Engmark, Gary M. Grose, Todd H. Schaefer, Thomas I. Ceballos, Andrew J. Ries
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Patent number: 7317946Abstract: A telemetry antenna for an implantable medical device includes one or more portions having a non-linear configuration. In some embodiments, the non-linear configuration provides an antenna having a greater antenna length than the linear lengthwise dimension of the antenna structure. In some embodiments, the non-linear configuration is a serpentine pattern.Type: GrantFiled: March 10, 2004Date of Patent: January 8, 2008Assignee: Medtronic, Inc.Inventors: Len D. Twetan, Piotr Przybyszewski, Garry L. Dublin, Gregory J. Haubrich, Andrina J. Hougham, Andrew J. Ries, David B. Engmark, Gary M. Grose
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Patent number: 6931284Abstract: An implantable medical device that includes an enclosure, an electrical module for the desired stimulation, sensing and communications functions, a power source, an air-core antenna, and supporting structures therefore. The antenna includes a quarter-elliptical shape that maximizes the antenna area to facilitate transmission of electromagnetic waves through the enclosure. A support structure is provided so that the antenna, the module and the battery self-align with each other and the enclosure. The support structure contains contacts to facilitate electrical connection of the antenna to the module and positions the module so that contacts thereon are in close proximity in plan and elevation to external electrical feed-throughs in the housing and the antenna contacts on the support structure.Type: GrantFiled: October 25, 2002Date of Patent: August 16, 2005Assignee: Medtronic, Inc.Inventors: David B. Engmark, John E. Nicholson, Brian S. Child, David M. Reinker
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Publication number: 20040147974Abstract: In general, the invention is directed to an implantable medical device assembly having a more space-efficient housing and components, as well as processes for assembling the implantable medical device with reduced assembly cost and less complexity. The implantable medical device may incorporate a battery, capacitor, circuit assembly, feedthrough assembly, and interconnect assembly with respective electrical terminals. This configuration permits the use of automated electronic module assembly techniques such as parallel gap or ribbon bond welding to electrically connect the terminals. A feedthrough assembly may present a set of terminals adjacent a corresponding set of circuit terminals, also enabling the use of automated welding techniques.Type: ApplicationFiled: January 13, 2004Publication date: July 29, 2004Applicant: Medtronic, Inc.Inventors: David B. Engmark, Thomas Ceballos, Richard A. Bruchmann, Kevin K. Tidemand, George Patras, Todd Schaefer, Robert L. Olson
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Publication number: 20040082977Abstract: An implantable medical device that includes an enclosure, an electrical module for the desired stimulation, sensing and communications functions, a power source, an air-core antenna, and supporting structures therefore. The antenna includes a quarter-elliptical shape that maximizes the antenna area to facilitate transmission of electromagnetic waves through the enclosure. A support structure is provided so that the antenna, the module and the battery self-align with each other and the enclosure. The support structure contains contacts to facilitate electrical connection of the antenna to the module and positions the module so that contacts thereon are in close proximity in plan and elevation to external electrical feed-throughs in the housing and the antenna contacts on the support structure.Type: ApplicationFiled: October 25, 2002Publication date: April 29, 2004Inventors: David B. Engmark, John E. Nicholson, Brian S. Child, David M. Reinker
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Patent number: 6721602Abstract: In general, the invention is directed to an implantable medical device assembly having a more space-efficient housing and components, as well as processes for assembling the implantable medical device with reduced assembly cost and less complexity. The implantable medical device may incorporate a battery, capacitor, circuit assembly, feedthrough assembly, and interconnect assembly with respective electrical terminals. This configuration permits the use of automated electronic module assembly techniques such as parallel gap or ribbon bond welding to electrically connect the terminals. A feedthrough assembly may present a set of terminals adjacent a corresponding set of circuit terminals, also enabling the use of automated welding techniques.Type: GrantFiled: August 21, 2001Date of Patent: April 13, 2004Assignee: Medtronic, Inc.Inventors: David B. Engmark, Thomas Ceballos, Richard A. Bruchmann, Kevin K. Tidemand, George Patras, Todd Schaefer, Robert L. Olson
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Publication number: 20030040779Abstract: In general, the invention is directed to an implantable medical device assembly having a more space-efficient housing and components, as well as processes for assembling the implantable medical device with reduced assembly cost and less complexity. The implantable medical device may incorporate a battery, capacitor, circuit assembly, feedthrough assembly, and interconnect assembly with respective electrical terminals. This configuration permits the use of automated electronic module assembly techniques such as parallel gap or ribbon bond welding to electrically connect the terminals. A feedthrough assembly may present a set of terminals adjacent a corresponding set of circuit terminals, also enabling the use of automated welding techniques.Type: ApplicationFiled: August 21, 2001Publication date: February 27, 2003Applicant: Medtronic, Inc.Inventors: David B. Engmark, Thomas Ceballos, Richard A. Bruchmann, Kevin K. Tidemand, George Patras, Todd Schaefer, Robert L. Olson
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Patent number: 5870272Abstract: A capacitive filter feedthrough assembly and method of making the same are disclosed for shielding an implantable medical device such as pacemaker or defibrillator from electromagnetic interference or noise. A ferrule is adapted for mounting onto a conductive device housing by welding, soldering, brazing or gluing, and supports a terminal pin for feedthrough passage to a housing interior. A capacitive filter is mounted at the inboard side of a device housing, with capacitive filter electrode plate sets coupled respectively to the housing and the terminal pin by an electrically conductive combination of solder and brazing. In one embodiment of the invention, multiple capacitive filters are provided in an array within a common base structure, where each capacitive filter is associated with a respective terminal pin.Type: GrantFiled: May 6, 1997Date of Patent: February 9, 1999Assignee: Medtronic Inc.Inventors: Lynn M. Seifried, Joseph F. Lessar, William D. Wolf, Mary A. Fraley, Kevin K. Tidemand, David B. Engmark, Ronald F. Hoch, Craig L. Wiklund