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: 10661088
    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: Grant
    Filed: March 30, 2018
    Date of Patent: May 26, 2020
    Assignee: MEDTRONIC, INC.
    Inventors: John E. Kast, Linda M. Johnson-Morke, Chris J. Paidosh, Randy S. Roles
  • Publication number: 20200155853
    Abstract: A lead connector assembly includes a lead receptacle, a sleeve, and a handle for coupling to a medical lead. The lead receptacle has an inner surface and an opening configured to receive the lead. The sleeve is deflectable by the inner surface of the lead receptacle. The sleeve has a distal end portion defining a first outer diameter to engage the lead in a locked position and a second outer diameter greater than the first diameter in an unlocked position. The handle is coupled to the lead receptacle and a proximal end portion of the sleeve to move the sleeve axially in both directions along the longitudinal axis relative to the lead receptacle. The lead connector assembly retains the lead in the locked position. The lead receptacle is couplable to a medical device housing.
    Type: Application
    Filed: March 14, 2018
    Publication date: May 21, 2020
    Inventors: Rajesh V. Iyer, Randy S. Roles, Erik R. Scott, Andrew J. Thom
  • Publication number: 20190336752
    Abstract: In some examples, a fixation device includes a flexible band with a first base portion, a second base portion, and a connecting strap connecting the first base portion to the second base portion, the connecting strap configured to retain a medical device to an anatomical structure of a patient, wherein the flexible band is constructed of a first material. The fixation device may further include a plurality of inserts, each insert of the plurality of inserts defining an inner channel and constructed of a second material more rigid than the first material of the flexible band, wherein a first insert of the plurality of inserts is at least partially within the first base portion, and wherein a second insert of the plurality of inserts is at least partially within the second base portion.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 7, 2019
    Inventors: Ryan T. Bauer, Phillip C. Falkner, Randy S. Roles, Elizabeth Kregel
  • Publication number: 20190328403
    Abstract: This disclosure is directed to systems and methods that facilitate the removal of tissue for implantation of an implantable medical device into bone or other substantially rigid tissue of a patient. An example system may include a shroud for a bone drill, the shroud including a housing extending along an axis and defining an inner surface around the axis. The inner surface may terminate at an edge of the housing and defining a cavity. The cavity may be configured to receive a drill bit having a shank and a primary cutting surface extending substantially parallel to the axis. The shroud also may include a collar coupled to the housing and configured to engage a distal portion of the bone drill.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 31, 2019
    Inventors: Ryan T. Bauer, Phillip C. Falkner, Randy S. Roles, Victoria Holderby, Rebecca A Miron, Greg J. Doyle, S. Shane Dexter
  • Publication number: 20190314635
    Abstract: Medical devices include fixation structures that include retained portions that provide medical lead fixation within the medical devices. Lead extensions include fixation structures that include retained portions that provide medical lead fixation within the lead extensions. A grip that a clinician may grasp and manipulate is engaged with a nose structure of a header block of the medical device or a connector block of a lead extension and manipulation of the grip causes compression of a deformable structure to ultimately create fixation of the lead or lead extension within the header block or the lead within the extension connector block. The deformable structure may be the retained portion of the fixation structure or alternatively may be separate from the fixation structure.
    Type: Application
    Filed: October 19, 2017
    Publication date: October 17, 2019
    Inventors: Rajesh V. Iyer, Kunal J. Paralikar, Randy S. Roles
  • Publication number: 20190290911
    Abstract: In some examples, an implantable medical device (IMD) including a hermetically sealed housing that is configured to enclose internal components. The internal components may include stimulation circuitry, processing circuitry configured to control the stimulation circuitry to deliver electrical stimulation using one or more leads received by the housing, telemetry circuitry, and a rechargeable power source. The IMD may also include a coil configured to at least one of receive energy to recharge the rechargeable power source or receive and/or transmit signals for wireless telemetry with another device, wherein the implantable medical device is configured to mount to a cranium of a patient, and wherein the coil is coiled about an axis that is approximately orthogonal to a major surface of the IMD.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 26, 2019
    Inventors: Nicholas R. Whitehead, Venkat R. Gaddam, Erik R. Scott, Randy S. Roles, Don A. Rutledge
  • Publication number: 20190183472
    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: February 21, 2019
    Publication date: June 20, 2019
    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
  • Patent number: 10322288
    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: Grant
    Filed: October 28, 2011
    Date of Patent: June 18, 2019
    Assignee: Medtronic, Inc.
    Inventors: Todd A. Kallmyer, John E. Kast, David P. Olson, Randy S. Roles, Venkat R. Gaddam
  • Publication number: 20190126028
    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: December 26, 2018
    Publication date: May 2, 2019
    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: 10258789
    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: Grant
    Filed: December 6, 2013
    Date of Patent: April 16, 2019
    Assignee: 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
  • Patent number: 10238880
    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: Grant
    Filed: November 12, 2015
    Date of Patent: March 26, 2019
    Assignee: Medtronic, Inc.
    Inventors: Andrew J. Thom, Rajesh V. Iyer, Darren A. Janzig, Randy S. Roles
  • Publication number: 20190060656
    Abstract: An implantable medical device (IMD) includes a housing that is configured to enclose internal components including at least a processor and a power source. The housing defines two major surfaces that are generally parallel to each other and one or more channels that are each configured to receive a lead and electrically couple the respective lead to the internal components, where each of the channels extend substantially straight in to the housing along an axis generally parallel to the two major surfaces. The housing may be configured to be mounted to a cranium of a patient such that at least one of the two major surfaces approximates a curvature of the cranium. The IMD may include one or more funneling walls that define a rounded and smooth transition from a sidewall of the housing to a surface that defines one or more mouths to the channels.
    Type: Application
    Filed: August 28, 2018
    Publication date: February 28, 2019
    Inventors: Erik R. Scott, Darren A. Janzig, John E. Kast, Randy S. Roles, Don A. Rutledge, Nicholas R. Whitehead, Phillip C. Falkner, Venkat R. Gaddam, Connor T. Gunsbury
  • Patent number: 10201335
    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: Grant
    Filed: July 25, 2016
    Date of Patent: February 12, 2019
    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
  • Patent number: 10045764
    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: Grant
    Filed: October 25, 2017
    Date of Patent: August 14, 2018
    Assignee: 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: 20180221669
    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: March 30, 2018
    Publication date: August 9, 2018
    Inventors: John E. Kast, Linda M. Johnson-Morke, Chris J. Paidosh, Randy S. Roles
  • Publication number: 20180168564
    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: February 20, 2018
    Publication date: June 21, 2018
    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
  • Patent number: 9956420
    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: Grant
    Filed: April 3, 2017
    Date of Patent: May 1, 2018
    Assignee: MEDTRONIC, INC.
    Inventors: John E. Kast, Linda M. Johnson-Morke, Chris J. Paidosh, Randy S. Roles
  • Patent number: 9931107
    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: Grant
    Filed: December 6, 2013
    Date of Patent: April 3, 2018
    Assignee: 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: 20180055500
    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: October 25, 2017
    Publication date: March 1, 2018
    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
  • Patent number: 9826963
    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: Grant
    Filed: December 6, 2013
    Date of Patent: November 28, 2017
    Assignee: 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