Patents by Inventor Randy S. Roles

Randy S. Roles 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: 9560787
    Abstract: Devices, systems, and techniques for managing heat generated in coils for wireless energy transmission are disclosed. Inductive coupling between two coils (e.g., a primary coil and a secondary coil) may be used to recharge the power source of an implantable medical device. A phase change material may be thermally coupled to the primary coil to absorb heat generated during the inductive coupling and reduce temperature increases of the primary coil. In one example, the phase change material may be configured to absorb heat from an energy transfer coil. A housing may be configured to contain the phase change material and a coupling mechanism may be configured to removably attach the housing to the energy transfer coil.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: January 31, 2017
    Assignee: Medtronic, Inc.
    Inventors: Todd A. Kallmyer, John E. Kast, David P. Olson, Randy S. Roles, Venkat R. Gaddam
  • Publication number: 20160331978
    Abstract: An implantable medical device (IMD) has a housing enclosing an electronic circuit. The housing includes a first housing portion, a second housing portion and a joint coupling the first housing portion to the second housing portion. A polymer seal is positioned in the joint in various embodiments. Other embodiments of an IMD housing are disclosed.
    Type: Application
    Filed: July 25, 2016
    Publication date: November 17, 2016
    Inventors: Brad C. Tischendorf, John E. Kast, Thomas P. Miltich, Gordon O. Munns, Randy S. Roles, Craig L. Schmidt, Joseph J. Viavattine, Christian S. Nielsen, Prabhakar A. Tamirisa, Anthony M. Chasensky, Markus W. Reiterer, Chris J. Paidosh, Reginald D. Robinson, Bernard Q. Li, Erik R. Scott, Phillip C. Falkner, Xuan K. Wei, Eric H. Bonde
  • Patent number: 9398901
    Abstract: An implantable medical device (IMD) has a housing enclosing an electronic circuit. The housing includes a first housing portion, a second housing portion and a joint coupling the first housing portion to the second housing portion. A polymer enclosure member surrounds the joint and circumscribes the housing in various embodiments. Other embodiments of an IMD housing are disclosed.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: July 26, 2016
    Assignee: Medtronic, Inc.
    Inventors: Brad C. Tischendorf, John E. Kast, Thomas P. Miltich, Gordon O. Munns, Randy S. Roles, Craig L. Schmidt, Joseph J. Viavattine, Christian S. Nielsen, Prabhakar A. Tamirisa, Anthony M. Chasensky, Markus W. Reiterer, Chris J. Paidosh, Reginald D. Robinson, Bernard Q. Li, Erik R. Scott, Phillip C. Falkner, Xuan K. Wei, Eric H. Bonde
  • Publication number: 20160129267
    Abstract: Medical devices include deformable structures that contact a lead upon being compressed. A grip that a clinician may grasp and manipulate is engaged with a nose structure of a header block of the medical device, and manipulation of the grip causes compression of the deformable structure to ultimately create fixation of the lead within the header block.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 12, 2016
    Inventors: Andrew J. Thom, Rajesh V. Iyer, Darren A. Janzig, Randy S. Roles
  • Publication number: 20160121125
    Abstract: An implantable medical device (IMD) has a housing enclosing an electronic circuit. The housing includes a shield member defining a first portion of an interior cavity of the implantable medical device and a skirted feedthrough assembly. The feedthrough assembly includes a shield extender having a top face and a sidewall that extends from the top face so that the top face and the sidewall are a single continuous component. At least one feedthrough aperture extends through the top face.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 5, 2016
    Inventors: John E. Kast, Linda M. Johnson-Morke, Chris J. Paidosh, Randy S. Roles
  • Patent number: 9242108
    Abstract: 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: Grant
    Filed: July 30, 2010
    Date of Patent: January 26, 2016
    Assignee: Medtronic, Inc.
    Inventors: Eric John Wengreen, Andrew J. Ries, David J. Saltzman, Randy S. Roles, Scott J. Robinson, David B. Engmark, John Eric Lovins
  • Patent number: 9216297
    Abstract: Techniques adapted for use with recharging a rechargeable power source of an implantable device. One aspect relates to providing a flexible primary coil that can be transcutaneously coupled to a secondary coil of the implantable device. Multiple adjacent turns of the coil are grouped via lacing to form bundles. The bundles have at least one dimension that is selected to be a same size as a predetermined thickness of the coil. In one embodiment, the dimension is a diameter of the bundle. In another embodiment, the dimension is at least one of a length or width of the bundle. Insulating overmolding may be provided over the coil. In one embodiment, the resulting antenna structure is bidirectional such that substantially the same performance characteristics are obtained during recharge regardless of which of two major surfaces of the antenna is placed in proximity to the patient.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: December 22, 2015
    Assignee: MEDTRONIC, INC.
    Inventors: John E. Kast, Randy S. Roles, Bruce D. Fishbeck, Thipphaphone Lougiu, Todd A. Kallmyer, Jay T. Eisch, David P. Olson, William C. Phillips, Matthew C. Lukasek, Lonnie B. Gades
  • Patent number: 9186513
    Abstract: An implantable cardiac monitoring device includes first and second arms, pivotably attached to one another; electronic circuitry and an associated power source of the device are hermetically sealed in a housing formed by one of the arms. A first electrode is carried by the first arm, a second electrode by the second arm, and a third electrode by one of the two arms. The device further includes a tether element, preferably a strut, pivotably attached between the arms and movable between a folded state and an expanded state. When the strut is in the folded state, the device, in a relatively compact form, can be inserted through a relatively small incision and into subcutaneous tissue, after which, the strut is moved to the expanded state where ends of the arms are spaced apart from one another and supported by the strut, and the three electrodes form dual sensing vectors.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: November 17, 2015
    Assignee: Medtronic, Inc.
    Inventors: Eric Wengreen, Randy S Roles, John E Lovins
  • Publication number: 20150073509
    Abstract: Devices, systems, and techniques for managing heat generated in coils for wireless energy transmission are disclosed. Inductive coupling between two coils (e.g., a primary coil and a secondary coil) may be used to recharge the power source of an implantable medical device. A phase change material may be thermally coupled to the primary coil to absorb heat generated during the inductive coupling and reduce temperature increases of the primary coil. In one example, the phase change material may be configured to absorb heat from an energy transfer coil. A housing may be configured to contain the phase change material and a coupling mechanism may be configured to removably attach the housing to the energy transfer coil.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventors: Todd A. Kallmyer, John E. Kast, David P. Olson, Randy S. Roles, Venkat R. Gaddam
  • Publication number: 20150030913
    Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a preferably planar, major bottom portion, an open top to receive the cover opposing the bottom portion, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device. The cover and the shallow case being substantially hermetically sealed by a laser weld technique and an insulator member disposed within the case to provide a barrier to incident laser radiation so that during welding radiation does not impinge upon radiation sensitive component(s) disposed within the case.
    Type: Application
    Filed: August 6, 2014
    Publication date: January 29, 2015
    Inventors: Paul B. Aamodt, Franise D. Bartley, Steven M. Bruesehoff, Kurt J. Casby, David P. Haas, Karl E. Hokanson, Thomas M. Nutzman, Andrew J. Ries, Scott J. Robinson, Randy S. Roles, Sonja K. Somdahl, Walter C. Sunderland, Jason T. Papenfuss, William J. Farrell, Kimberly A. Chaffin
  • Patent number: 8916290
    Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a preferably planar, major bottom portion, an open top to receive the cover opposing the bottom portion, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device. The cover and the shallow case being substantially hermetically sealed by a laser weld technique and an insulator member disposed within the case to provide a barrier to incident laser radiation so that during welding radiation does not impinge upon radiation sensitive component(s) disposed within the case.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: December 23, 2014
    Assignee: Medtronic, Inc.
    Inventors: Paul B. Aamodt, Franise D. Bartley, Steve M. Bruesehoff, Kurt J. Casby, David P. Haas, Karl E. Hokanson, Thomas M. Nutzman, Andrew J. Ries, Scott J. Robinson, Randy S. Roles, Sonja K. Somdahl, Walter C. Sunderland, Jason T. Papenfuss, William J. Farrell, Kimberly A. Chaffin
  • Patent number: 8887619
    Abstract: Devices, systems, and techniques for managing heat generated in coils for wireless energy transmission are disclosed. Inductive coupling between two coils (e.g., a primary coil and a secondary coil) may be used to recharge the power source of an implantable medical device. A phase change material may be thermally coupled to the primary coil to absorb heat generated during the inductive coupling and reduce temperature increases of the primary coil. In one example, the phase change material may be configured to absorb heat from an energy transfer coil. A housing may be configured to contain the phase change material and a coupling mechanism may be configured to removably attach the housing to the energy transfer coil.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: November 18, 2014
    Assignee: Medtronic, Inc.
    Inventors: Todd A. Kallmyer, John E. Kast, David P. Olson, Randy S. Roles, Venkat R. Gaddam
  • Publication number: 20140257072
    Abstract: An implantable cardiac monitoring device includes first and second arms, pivotably attached to one another; electronic circuitry and an associated power source of the device are hermetically sealed in a housing formed by one of the arms. A first electrode is carried by the first arm, a second electrode by the second arm, and a third electrode by one of the two arms. The device further includes a tether element, preferably a strut, pivotably attached between the arms and movable between a folded state and an expanded state. When the strut is in the folded state, the device, in a relatively compact form, can be inserted through a relatively small incision and into subcutaneous tissue, after which, the strut is moved to the expanded state where ends of the arms are spaced apart from one another and supported by the strut, and the three electrodes form dual sensing vectors.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Applicant: MEDTRONIC, INC.
    Inventors: Eric Wengreen, Randy S. Roles, John E. Lovins
  • Publication number: 20140163646
    Abstract: An implantable medical device (IMD) has a housing enclosing an electronic circuit. The housing includes a first housing portion, a second housing portion and a joint coupling the first housing portion to the second housing portion. A polymer enclosure member surrounds the joint and circumscribes the housing in various embodiments. Other embodiments of an IMD housing are disclosed.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: Medtronic, Inc.
    Inventors: Brad C. Tischendorf, John E. Kast, Thomas P. Miltich, Gordon O. Munns, Randy S. Roles, Craig L. Schmidt, Joseph J. Viavattine, Christian S. Nielsen, Prabhakar A. Tamirisa, Anthony M. Chasensky, Markus W. Reiterer, Chris J. Paidosh, Reginald D. Robinson, Bernard Q. Li, Erik R. Scott, Phillip C. Falkner, Xuan K. Wei, Eric H. Bonde
  • Publication number: 20140163644
    Abstract: An external medical device generates a drive signal inductively coupled to an implantable coil from an external coil. A regulator module coupled to the implantable coil generates an output signal in response to the inductively coupled signal and a feedback signal correlated to an amplitude of the inductively coupled signal. A signal generator receives the output signal for generating a therapeutic electrical stimulation signal. The control module adjusts the drive signal in response to the feedback signal to control the electrical stimulation signal.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: Medtronic, Inc.
    Inventors: Erik R. Scott, John E. Kast, Xuan K. Wei, Todd V. Smith, Joel A. Anderson, Forrest C.M. Pape, Duane L. Bourget, Timothy J. Denison, David A. Dinsmoor, Randy S. Roles, Stephen J. Roddy
  • Publication number: 20140163579
    Abstract: A medical device system for delivering a neuromodulation therapy includes a delivery tool for deploying an implantable medical device at a neuromodulation therapy site. The implantable medical device includes a housing, an electronic circuit within the housing, and an electrical lead comprising a lead body extending between a proximal end coupled to the housing and a distal end extending away from the housing and at least one electrode carried by the lead body. The delivery tool includes a first cavity for receiving the housing and a second cavity for receiving the lead. The first cavity and the second cavity are in direct communication for receiving and deploying the housing and the lead coupled to the housing concomitantly as a single unit.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: Medtronic, Inc.
    Inventors: Brad C. Tischendorf, Eric H. Bonde, Phillip C. Falkner, John E. Kast, Randy S. Roles, EriK R. Scott, Todd V. Smith, Xuan K. Wei, Anthony M. Chasensky, Michael J. Ebert, Shawn C. Kelley, Gabriela C. Molnar, Richard T. Stone
  • Publication number: 20140163580
    Abstract: A neuromodulation therapy is delivered via at least one electrode implanted subcutaneously and superficially to a fascia layer superficial to a nerve of a patient. In one example, an implantable medical device is deployed along a superficial surface of a deep fascia tissue layer superficial to a nerve of a patient. Electrical stimulation energy is delivered to the nerve through the deep fascia tissue layer via implantable medical device electrodes.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: Medtronic, Inc.
    Inventors: Brad C. Tischendorf, Eric H. Bonde, Phillip C. Falkner, John E. Kast, Randy S. Roles, Erik R. Scott, Todd V. Smith, Xuan K. Wei, Anthony M. Chasensky, Michael J. Ebert, Shawn C. Kelley, Gabriela C. Molnar, Richard T. Stone
  • Publication number: 20130266844
    Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a preferably planar, major bottom portion, an open top to receive the cover opposing the bottom portion, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device. The cover and the shallow case being substantially hermetically sealed by a laser weld technique and an insulator member disposed within the case to provide a barrier to incident laser radiation so that during welding radiation does not impinge upon radiation sensitive component(s) disposed within the case.
    Type: Application
    Filed: March 5, 2013
    Publication date: October 10, 2013
    Inventors: Paul B. Aamodt, Franise D. Bartley, Steve M. Bruesehoff, Kurt J. Casby, David P. Haas, Karl E. Hokanson, Thomas M. Nutzman, Andrew J. Ries, Scott J. Robinson, Randy S. Roles, Sonja K. Somdahl, Walter C. Sunderland, Jason T. Papenfuss, William J. Farrell, Kimberly A. Chaffin
  • Publication number: 20130106347
    Abstract: Devices, systems, and techniques for managing heat generated in coils for wireless energy transmission are disclosed. Inductive coupling between two coils may be used to recharge the power source of an implantable medical device. A phase change material may be thermally coupled to a flexible coil to absorb heat generated during the inductive coupling and reduce temperature increases of the flexible coil. The flexible coil may be configured to at least one of transmit energy to or receive energy from a second coil, and the phase change material may be configured to deform with the flexible coil and absorb heat from the flexible coil. The phase change material may be contained within thermally conductive tubes or channels configured in shapes that promote flexibility of the flexible coil.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 2, 2013
    Applicant: MEDTRONIC, INC.
    Inventors: Todd A. Kallmyer, John E. Kast, David P. Olson, Randy S. Roles, Venkat R. Gaddam
  • Publication number: 20130105115
    Abstract: Devices, systems, and techniques for managing heat generated in coils for wireless energy transmission are disclosed. Inductive coupling between two coils (e.g., a primary coil and a secondary coil) may be used to recharge the power source of an implantable medical device. A phase change material may be thermally coupled to the primary coil to absorb heat generated during the inductive coupling and reduce temperature increases of the primary coil. In one example, the phase change material may be configured to absorb heat from an energy transfer coil. A housing may be configured to contain the phase change material and a coupling mechanism may be configured to removably attach the housing to the energy transfer coil.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 2, 2013
    Applicant: Medtronic, Inc.
    Inventors: Todd A. Kallmyer, John E. Kast, David P. Olson, Randy S. Roles, Venkat R. Gaddam