Patents by Inventor Randal T. Byrum

Randal T. Byrum 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: 11529164
    Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The end effector comprises an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade includes a recess region having a plurality of recesses. The recess region is tapered such that the cross-sectional area of the recess region decreases along the length of the recess region. The ultrasonic blade is also curved such that a central longitudinal axis of the ultrasonic blade extends along a curved path. A reference circuit is used to account for voltage drops of unknown values during operation of the surgical apparatus.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: December 20, 2022
    Assignee: Cilag GmbH International
    Inventors: Foster B. Stulen, John B. Schulte, Jeffrey L. Aldridge, Jeffery T. Kirk, Randal T. Byrum, Douglas J. Turner, John M. Sarley, David A. Witt, William A. Olson, Kyle P. Moore
  • Publication number: 20210346048
    Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The body comprises a pivotal trigger. The shaft couples the end effector and the body together. The end effector comprises a clamp arm and an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade is operable to deliver ultrasonic vibrations to tissue. Pivotal movement of the trigger causes movement of the clamp arm. The trigger includes a compliant feature configured to limit the amount of force delivered to tissue by the clamp arm. The flexible feature may comprise a flexible band, living hinge, a series of living hinges, or a flexible tab.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 11, 2021
    Inventors: Craig N. Faller, Ryan M. Asher, John B. Schulte, Randal T. Byrum, Jose D. Vasquez, Thomas C. Gallmeyer, Benjamin M. Boyd, Amy L. Marcotte, Jacob S. Gee, Jonathan T. Batross, Jeffrey D. Messerly
  • Patent number: 11103270
    Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The body comprises a pivotal trigger. The shaft couples the end effector and the body together. The end effector comprises a clamp arm and an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade is operable to deliver ultrasonic vibrations to tissue. Pivotal movement of the trigger causes movement of the clamp arm. The trigger includes a compliant feature configured to limit the amount of force delivered to tissue by the clamp arm. The flexible feature may comprise a flexible band, living hinge, a series of living hinges, or a flexible tab.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: August 31, 2021
    Assignee: Cilag GmbH International
    Inventors: Craig N. Faller, Ryan M. Asher, John B. Schulte, Randal T. Byrum, Jose D. Vasquez, Thomas C. Gallmeyer, Benjamin M. Boyd, Amy L. Marcotte, Jacob S. Gee, Jonathan T. Batross, Jeffrey D. Messerly
  • Patent number: 10575836
    Abstract: An apparatus for operating on tissue includes a body assembly, a shaft assembly, an acoustic waveguide, an articulation section, an articulation control assembly, an end effector, and an articulation lock. A portion of the articulation section encompasses a flexible portion of the waveguide. The articulation includes a first member and a second member that is longitudinally translatable relative to the first member. The articulation control assembly is configured to move relative to the shaft assembly in order to longitudinally translate the second member relative to the first member. The end effector includes an ultrasonic blade in acoustic communication with the waveguide. The articulation lock is configured to prevent movement of the articulation control assembly relative to the shaft assembly.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: March 3, 2020
    Assignee: Ethicon LLC
    Inventors: John A. Hibner, Randal T. Byrum, Karalyn R. Tellio, David C. Groene, Benjamin D. Dickerson
  • Publication number: 20190247082
    Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The end effector comprises an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade includes a recess region having a plurality of recesses. The recess region is tapered such that the cross-sectional area of the recess region decreases along the length of the recess region. The ultrasonic blade is also curved such that a central longitudinal axis of the ultrasonic blade extends along a curved path. A reference circuit is used to account for voltage drops of unknown values during operation of the surgical apparatus.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 15, 2019
    Inventors: Foster B. Stulen, John B. Schulte, Jeffrey L. Aldridge, Jeffery T. Kirk, Randal T. Byrum, Douglas J. Turner, John M. Sarley, David A. Witt, William A. Olson, Kyle P. Moore
  • Patent number: 10238416
    Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The end effector comprises an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade includes a recess region having a plurality of recesses. The recess region is tapered such that the cross-sectional area of the recess region decreases along the length of the recess region. The ultrasonic blade is also curved such that a central longitudinal axis of the ultrasonic blade extends along a curved path. A reference circuit is used to account for voltage drops of unknown values during operation of the surgical apparatus.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: March 26, 2019
    Assignee: Ethicon LLC
    Inventors: Foster B. Stulen, John B. Schulte, Jeffrey L. Aldridge, Jeffery T. Kirk, Randal T. Byrum, Douglas J. Turner, John M. Sarley, David A. Witt, William A. Olson, Kyle P. Moore
  • Patent number: 9943325
    Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The body comprises a pivotal trigger. The shaft couples the end effector and the body together. The end effector comprises a clamp arm and an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade is operable to deliver ultrasonic vibrations to tissue. Pivotal movement of the trigger causes movement of the clamp arm. The trigger includes a compliant feature configured to limit the amount of force delivered to tissue by the clamp arm. The flexible feature may comprise a flexible band, living hinge, a series of living hinges, or a flexible tab.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: April 17, 2018
    Assignee: Ethicon LLC
    Inventors: Craig N. Faller, Ryan M. Asher, John B. Schulte, Randal T. Byrum, Jose D. Vasquez, Thomas C. Gallmeyer, Benjamin M. Boyd, Amy L. Marcotte, Jacob S. Gee, Jonathan T. Batross
  • Publication number: 20170281220
    Abstract: An apparatus for operating on tissue includes a body assembly, a shaft assembly, an acoustic waveguide, an articulation section, an articulation control assembly, an end effector, and an articulation lock. A portion of the articulation section encompasses a flexible portion of the waveguide. The articulation includes a first member and a second member that is longitudinally translatable relative to the first member. The articulation control assembly is configured to move relative to the shaft assembly in order to longitudinally translate the second member relative to the first member. The end effector includes an ultrasonic blade in acoustic communication with the waveguide. The articulation lock is configured to prevent movement of the articulation control assembly relative to the shaft assembly.
    Type: Application
    Filed: April 4, 2016
    Publication date: October 5, 2017
    Inventors: John A. Hibner, Randal T. Byrum, Karalyn R. Tellio, David C. Groene, Benjamin D. Dickerson
  • Patent number: 9750629
    Abstract: An apparatus for regulating the functioning of a patient's organ or duct includes an elongated member having a first end and a second end. A fastener is disposed on the first end of the elongated member. The fastener is configured to engage the second end of the elongated member so that the elongated member forms a loop around the organ or duct. A tension element is disposed for movement within the elongated member. A drive element is associated with and engages the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct. A tension release mechanism is associated with the tension element.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: September 5, 2017
    Assignee: ETHICON ENDO-SURGERY, INC.
    Inventors: Daniel F. Dlugos, Jr., Randal T. Byrum, Toralf Bork, Rocco Crivelli, Dean L. Garner, Alec J. Ginggen, Geoffrey C. Hueil, Donna L. Korvick, David T. Krumanaker, Amy L. Marcotte, Jeffrey D. Messerly, Kyle P. Moore, Daniel J. Mumaw, Anil K. Nalagatla, Mark S. Ortiz, Frederick E. Shelton, IV, Bret W. Smith, Jeffrey S. Swayze, Patrick J. Swindon, Richard W. Timm, Eric W. Thompson, Lauren S. Weaner
  • Patent number: 9649214
    Abstract: An apparatus for regulating the functioning of a patient's organ or duct. The apparatus includes an elongated member having first end and second ends. A fastener is disposed on the first end of the elongated member. The fastener is configured to engage the second end of the elongated member so that the elongated member forms a ring around the organ or duct. A tension element is slidably disposed within the elongated member. A drive element is associated with and engaging the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct. An antenna/controller pod is releasably coupled to the elongated member for control of the drive element.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: May 16, 2017
    Assignee: ETHICON ENDO-SURGERY, INC.
    Inventors: Randal T. Byrum, Sean P. Conlon, Alec J. Ginggen, Bret W. Smith, Dean L. Garner, Daniel F. Dlugos, Jr.
  • Patent number: 9125552
    Abstract: A module for attachment to a medical instrument to scan the anatomy with a beam of radiation. The module comprising a housing suitable for insertion in the anatomy that includes a window and a fastener to attach the housing to a medical instrument, an oscillating reflector within the housing that directs a beam of radiation onto the anatomy, and a collector to receive radiation returned from the anatomy.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: September 8, 2015
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Robert J. Dunki-Jacobs, Randal T. Byrum, Jane A. Sheetz, Sean P. Conlon, David C. Youmans, Robert M. Trusty, Kurt R. Bally, Gary L. Long, Paul G. Ritchie, Michael S. Cropper, Thomas W. Huitema, Bradley E. White
  • Publication number: 20150148831
    Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The body comprises a pivotal trigger. The shaft couples the end effector and the body together. The end effector comprises a clamp arm and an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade is operable to deliver ultrasonic vibrations to tissue. Pivotal movement of the trigger causes movement of the clamp arm. The trigger includes a compliant feature configured to limit the amount of force delivered to tissue by the clamp arm. The flexible feature may comprise a flexible band, living hinge, a series of living hinges, or a flexible tab.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 28, 2015
    Inventors: Craig N. Faller, Ryan M. Asher, John B. Schulte, Randal T. Byrum, Jose D. Vasquez, Thomas C. Gallmeyer, Benjamin M. Boyd, Amy L. Marcotte, Jacob S. Gee, Jonathan T. Batross, Jeffrey D. Messerly
  • Patent number: 8870742
    Abstract: An implantable restriction device can be configured to provide a restriction in a patient, for example as a function of the pressure of fluid. The implantable restriction device can include one or more sensors configured to sense a variety of parameters, such as pressure of the fluid within the implantable restriction device, pulse width, pulse amplitude, pulse count, pulse duration, or frequency, electrical characteristics, or other parameters. Data obtained by the one or more sensors (for example, the data representing pressure, pulse characteristics, and so on) may be communicated to a device located external to the patient, such as a data logger, using telemetry coils or other communicators. The data logger may store the data, and may communicate the data to a remote location via a network such as the Internet. A docking station may be provided to couple the data logger to a network and/or to recharge a cell in the data logger.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: October 28, 2014
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Daniel F. Dlugos, Jr., Peter Brockmeier, Matthew A. Berger, Randal T. Byrum, Kevin R. Doll, Gaspar M. Gayoso, Dustin R. Jensen, David T. Krumanaker, Amy L. Marcotte, Mark S. Ortiz, David N. Plescia, David C. Yates
  • Patent number: 8864717
    Abstract: A self attaching injection port has integral moveable fasteners which are moveable from a undeployed state to a deployed state engaging tissue. The fasteners may be disposed radially or tangentially, and rotated to pierce the fascia. The fasteners may be rigid or elastically deformable.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: October 21, 2014
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Sean P. Conlon, Richard P. Nuchols, John V. Hunt, Randal T. Byrum, Dale R. Schulze
  • Patent number: 8834498
    Abstract: A method and devices for accomplishing the successful anastomosis of two hollow organ structures are disclosed. The method includes bringing the structures together, applying at least one fastener to hold the structures together and form a connection site, and applying, as alternatives or in conjunction, an adhesive, a wrap and/or a buttress about the connection site. Various examples of fasteners, fastener appliers, adhesives, adhesive initiators and buttress rings also are disclosed.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: September 16, 2014
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Randal T. Byrum, Robert P. Gill, William D. Kelly, Ronald J. Kolata, Mark S. Ortiz, Frederick E. Shelton, IV, Douglas J. Turner, James W. Voegele
  • Patent number: 8764713
    Abstract: A method of repositioning an injection port comprises positioning the injection port at a first location in a patient's body and extending fasteners of the injection port to substantially secure the injection port at the first location. The fasteners are then retracted to substantially unsecure the injection port from the first location in the patient's body. The injection port is then moved to a second location in the patient's body. The fasteners are then re-extended to substantially secure the injection port at the second location in the patient's body. The injection port includes a port body. The fasteners are integral with the port body. The fasteners may be selectively extended and retracted relative to the port body. For instance, the fasteners may be pivoted relative to the port body to transition between extended and retracted positions. The extension and retraction of fasteners may be provided through a port applier.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: July 1, 2014
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Joshua Uth, Randal T. Byrum, Sean P. Conlon
  • Patent number: 8758303
    Abstract: An injection port system comprises an injection port and an applier. The port comprises a body and a plurality of fasteners. The fasteners are integral with the body and are movable from a non-deployed position to a deployed position. The applier comprises a port engagement portion and an actuator. The port engagement portion is configured to selectively engage the port body to selectively retain the port relative to the applier. The actuator is operable to move the fasteners to the deployed position. The applier is also configured to disengage the port engagement portion from the port body to release the port from the applier when the actuator moves the fasteners to the deployed position. The actuator may release the port from the applier by moving a resilient member away from the port body as the actuator also moves the fasteners from the non-deployed position to the deployed position.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: June 24, 2014
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Joshua Uth, Randal T. Byrum, Sean P. Conlon
  • Patent number: 8727964
    Abstract: An apparatus for regulating the functioning of a patient's organ or duct includes an elongated member having a first end and a second end. The elongated member has a compressible ventral surface and a substantially rigid dorsal periphery, wherein the elongated member includes a fluid bladder positioned along the ventral surface. A fastener is disposed on the first end of the elongated member. The fastener is configured to engage the second end of the elongated member so that the elongated member forms a loop around the organ or duct. A tension element is disposed for movement within the elongated member. A drive element is associated with and engages the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct. Alternate embodiments are also disclosed.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: May 20, 2014
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Daniel F. Dlugos, Jr., Thomas E. Adams, Randal T. Byrum, Sean P. Conlon, Rocco Crivelli, Dean L. Garner, Alec J. Ginggen, Wells D. Haberstich, Geoffrey C. Hueil, Donna L. Korvick, David T. Krumanaker, Timothy P. Lessek, Amy L. Marcotte, Jeffrey D. Messerly, Kyle P. Moore, Daniel J. Mumaw, Anil K. Nalagatla, Mark S. Ortiz, Frederick E. Shelton, IV, Bret W. Smith, Jeffrey S. Swayze, Patrick J. Swindon, Eric W. Thompson, Mark Tsonton, Lauren S. Weaner, Christopher W. Widenhouse, Scott A. Woodruff
  • Patent number: 8715243
    Abstract: An injection port applier is configured to engage an injection port that has integral fasteners that are movable from a non-deployed position to a deployed position. The applier comprises a shaft, a port engagement portion, and a handle. The port engagement portion is includes a fastener deployment member that is operable to move the fasteners to the deployed position. The handle comprises a first handle portion and a second handle portion. The second handle portion is movable distally relative to the first handle portion in order to actuate the fastener deployment member, to thereby move the fasteners to the deployed position. An elongate actuating member couples the second handle portion with the fastener deployment member. One part of the elongate actuating member translates longitudinally in response to the second handle being moved distally; while another part of the elongate actuating member rotates in response to the first portion translating.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: May 6, 2014
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Joshua R. Uth, Randal T. Byrum, Sean P. Conlon
  • Patent number: 8672830
    Abstract: An apparatus for regulating the functioning of a patient's organ or duct includes an elongated member having a first end and a second end. A fastener is disposed on the first end of the elongated member. The fastener is configured to engage the second end of the elongated member so that the elongated member forms a loop around the organ or duct. A tension element is disposed for movement within the elongated member. A drive element is associated with and engaging the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct. A release mechanism is provided for the tension element.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 18, 2014
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Daniel F. Dlugos, Jr., Thomas E. Adams, Randal T. Byrum, Toralf Bork, Christine H. Chen, Sean P. Conlon, Rocco Crivelli, Dean L. Garner, Alec J. Ginggen, David T. Krumanaker, Amy L. Marcotte, Anil K. Nalagatla, Bret W. Smith, Jeffrey S. Swayze, Richard W. Timm