Patents by Inventor Mark A. Davison

Mark A. Davison 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).

  • Publication number: 20220168039
    Abstract: The disclosure provides a method of manufacturing a flexible circuit electrode assembly and an apparatus manufactured by said method. According to the method, an electrically conductive sheet is laminated to an electrically insulative sheet. An electrode is formed on the electrically conductive sheet. An electrically insulative layer is formed on a tissue contacting surface of the electrode. The individual electrodes are separated from the laminated electrically insulative sheet and the electrically conductive sheet. In another method, a flexible circuit is vacuum formed to create a desired profile. The vacuum formed flexible circuit is trimmed. The trimmed vacuum formed flexible circuit is attached to a jaw member of a clamp jaw assembly.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 2, 2022
    Inventors: Barry C. Worrell, David C. Yates, Joseph D. Dennis, Mark A. Davison, Geoffrey S. Strobl
  • Patent number: 11344362
    Abstract: Aspects of the present disclosure are presented for a medical instrument configured to adjust the power level for sealing procedures to account for changes in tissue impedance levels over time. In some aspects, a medical instrument may be configured to apply power according to a power algorithm to seal tissue by applying a gradually lower amount of power over to time as the tissue impedance level begins to rise out of the “bathtub region,” which is the time period during energy application where the tissue impedance is low enough for electrosurgical energy to be effective for sealing tissue. In some aspects, the power is then cut once the tissue impedance level exceeds the “bathtub region.” By gradually reducing the power, a balance is achieved between still applying an effective level of power for sealing and prolonging the time in which the tissue impedance remains in the “bathtub region.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 31, 2022
    Assignee: Cilag GmbH International
    Inventors: David C. Yates, Amy M. Krumm, Mark A. Davison
  • Patent number: 11337747
    Abstract: A system for use with a surgical instrument includes an end effector, a memory circuit to store computer-executable instructions, and a processor. The end effector comprises a cutting member and a load cell sensor configured to sense a measure of force used to advance the cutting member through captured tissue. The processor is configured to execute the computer-executable instructions to initiate a first treatment cycle, access the measure of force used during the first treatment cycle to advance the cutting member through the captured tissue, determine that the measure of force exceeds a predetermined threshold, and generate an alert to a user of the surgical instrument based on the determination that a value of the measure of force exceeds the predetermined threshold. The predetermined threshold is based on an accumulation of biological material on the cutting member and a normal operational parameter of the first treatment cycle.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: May 24, 2022
    Assignee: Cilag GmbH International
    Inventors: Aaron C. Voegele, Phillip H. Clauda, Kevin L. Houser, Robert A. Kemerling, Mark A. Davison, Gregory A. Trees
  • Patent number: 11278346
    Abstract: A surgical instrument is disclosed. The surgical instrument includes a circuit configured to deliver RF energy to a cartridge disposed in an end effector configured to receive the cartridge, a closure mechanism configured to transition the end effector between an open position and a closed position, a display, and a control circuit operably coupled to the display. The control circuit configured to determine an amount of RF energy delivered to a tissue through the cartridge, display the amount of RF energy on the display, determine a position of the closure mechanism, and display the position of the closure mechanism on the display.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: March 22, 2022
    Assignee: Cilag GmbH International
    Inventors: Jeffrey D. Messerly, David C. Yates, Mark A. Davison, Jason L. Harris, Frederick E. Shelton, IV
  • Publication number: 20220039858
    Abstract: An apparatus includes a body, a shaft assembly, and an end effector. The end effector includes an ultrasonic blade and a clamp arm assembly. The ultrasonic blade is in acoustic communication with an acoustic waveguide of the shaft assembly. The clamp arm assembly is pivotable toward and away from the ultrasonic blade. The clamp arm assembly includes a clamp pad and an electrode. The clamp pad is configured to compress tissue against the ultrasonic blade. The clamp pad has a proximal end, a distal end, and a pair of lateral sides extending from the proximal end to the distal end. The electrode is operable to apply RF energy to tissue. The electrode extends along both lateral sides of the clamp pad. The electrode further extends around the distal end of the clamp pad.
    Type: Application
    Filed: August 24, 2021
    Publication date: February 10, 2022
    Inventors: Gregory W. Johnson, Jason R. Lesko, Frederick L. Estera, Amy M. Krumm, Catherine A. Corbett, William B. Weisenburgh, II, Barry C. Worrell, Mark A. Davison, Chad P. Boudreaux, John A. Hibner, Joseph Isosaki, Shan Wan, Candice Otrembiak, Eitan T. Wiener, Jeffrey D. Messerly, Matthew C. Miller
  • Publication number: 20220039861
    Abstract: An end effector of an instrument is positioned in a patient. An ultrasonic blade of the end effector is positioned against tissue in the patient. The ultrasonic blade is activated to vibrate ultrasonically while the ultrasonic blade is positioned against tissue. At least one electrode of the end effector is positioned against tissue in the patient. The at least one electrode is activated to apply RF electrosurgical energy to tissue against which the at least one electrode is positioned against tissue.
    Type: Application
    Filed: August 24, 2021
    Publication date: February 10, 2022
    Inventors: Gregory W. Johnson, Jason R. Lesko, Frederick L. Estera, Amy M. Krumm, Catherine A. Corbett, William B. Weisenburgh, II, Barry C. Worrell, Mark A. Davison, Chad P. Boudreaux, John A. Hibner, Nathan Cummings, Ellen Burkart, William D. Dannaher, Christina M. Hough, Joseph Isosaki, Craig N. Faller, Shan Wan, Adam N. Brown, Candice Otrembiak, Eitan T. Wiener, Jeffrey D. Messerly, Kai Chen, Matthew C. Miller, William E. Clem
  • Publication number: 20220008120
    Abstract: An apparatus includes a shaft assembly and an end effector, which includes first and second jaws pivotably coupled together. The first jaw includes a first jaw body and a first electrode surface. The second jaw includes a second jaw body and an electrode assembly, which includes a distal end pivotably supported by the distal end of the second jaw body. The electrode assembly further includes a second electrode surface positioned to face the first electrode surface when the first and second jaws are placed in a closed configuration. The first and second electrode surfaces are operable to apply RF energy to tissue. The electrode assembly further includes at least one compressible member interposed between the second electrode surface and the second jaw body. The at least one compressible is being configured to urge a proximal region of the second electrode surface toward a corresponding region of the first electrode surface.
    Type: Application
    Filed: July 9, 2021
    Publication date: January 13, 2022
    Inventors: Chad P. Boudreaux, Barry C. Worrell, Mark A. Davison
  • Patent number: 11202670
    Abstract: The disclosure provides a method of manufacturing a flexible circuit electrode assembly and an apparatus manufactured by said method. According to the method, an electrically conductive sheet is laminated to an electrically insulative sheet. An electrode is formed on the electrically conductive sheet. An electrically insulative layer is formed on a tissue contacting surface of the electrode. The individual electrodes are separated from the laminated electrically insulative sheet and the electrically conductive sheet. In another method, a flexible circuit is vacuum formed to create a desired profile. The vacuum formed flexible circuit is trimmed. The trimmed vacuum formed flexible circuit is attached to a jaw member of a clamp jaw assembly.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: December 21, 2021
    Assignee: Cilag GmbH International
    Inventors: Barry C. Worrell, David C. Yates, Joseph D. Dennis, Mark A. Davison
  • Patent number: 11160604
    Abstract: An electrosurgical device is disclosed. The electrosurgical device includes a cartridge configured to be disposed within an elongate channel of an end effector. The cartridge includes an electrode having a plurality of electrode portions disposed along a longitudinal axis of the cartridge. The electrode is configured to electrically couple to a generator. Each electrode portion of the plurality of electrode portions is configured to deliver an amount of energy to a tissue placed proximate thereto. An amount of energy delivered by a first electrode portion of the plurality of electrode portions differs from an amount of energy delivered by a second electrode portion of the plurality of electrode portions.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: November 2, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, David C. Yates, Mark A. Davison, Jason L. Harris
  • Patent number: 11141231
    Abstract: A method includes advancing an end effector of a surgical tool to a surgical site, setting a desired force vector to be assumed on the end effector during actuation of the end effector, engaging tissue at the surgical site with the end effector and calculating a force vector assumed on the end effector, and maneuvering the end effector to obtain the desired force vector.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 12, 2021
    Assignee: Cilag GmbH International
    Inventors: Mark D. Overmyer, Sol A. Posada, Joshua D. Young, Mark A. Davison, Christopher A. Denzinger
  • Patent number: 11129666
    Abstract: Disclosed is an apparatus and modular surgical system that allows for a user of modular surgical instruments to manipulate an end effector directly from the instrumentation contained in the handle assembly. A nozzle assembly that is detachable from a handle assembly may include an onboard circuitry board that allows for the RF generator to attach directly to the nozzle assembly and supply RF energy to the end effector, while also interfacing with a microprocessor of the handle assembly. In some aspects, the unique circuitry of the nozzle assembly also allows for shaft rotation while still supplying proper energy and functionality to the end effector.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: September 28, 2021
    Assignee: Cilag GmbH International
    Inventors: Jeffrey D. Messerly, David C. Yates, Mark A. Davison, Jason L. Harris, Frederick E. Shelton, IV
  • Patent number: 11077729
    Abstract: A vehicle system comprises a hitch ball mounted on a vehicle and a controller configured to identify a coupler position of a trailer. The controller is further configured to control motion of the vehicle aligning the hitch ball with the coupler position and monitor a height of the coupler relative to the hitch ball. In response to the coupler height being less than a height of the hitch ball, the controller is configured to stop the motion of the vehicle.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: August 3, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Chen Zhang, Mark Davison, Yu Ling
  • Patent number: 11079187
    Abstract: The present disclosure relates to a modular heat exchange tower that has a plurality of air inlet modules each having stanchion disposed therein. The modular heat exchange tower also includes a series of heat exchange modules positioned above the air inlet modules along with a series of plenum modules position above the heat exchange modules.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 3, 2021
    Assignee: SPX Cooling Technologies, Inc.
    Inventors: Eric Rasmussen, Mark Davison, Dustin Jenkins, John Dalton
  • Patent number: 11058477
    Abstract: A control circuit for a surgical instrument includes a shaft control segment, a first electrical conductor configured to conduct a first electrical signal between the shaft control segment and a releasable surgical instrument cartridge, an electrosurgical energy control segment, a second electrical conductor configured to conduct a second electrical signal between the electrosurgical energy control segment and the releasable surgical instrument cartridge, and a connector electrically coupled to the electrosurgical energy control segment and configured to receive electrosurgical generator energy from an electrosurgical generator. The electrosurgical energy control segment is configured to detect a connection of the electrosurgical generator to the connector and to electrically isolate the shaft control segment from the electrosurgical generator energy when the electrosurgical energy control segment detects the connection of the electrosurgical generator to the connector.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: July 13, 2021
    Assignee: Cilag GmbH International
    Inventors: Jeffrey D. Messerly, David C. Yates, Jason L. Harris, Frederick E. Shelton, IV, Mark A. Davison
  • Patent number: 11033344
    Abstract: A method includes advancing an end effector of a surgical tool to a surgical site, the surgical tool being pivotably mounted to a robotic arm at a tool driver, engaging tissue at the surgical site with the end effector, calculating a force vector assumed on the end effector by engaging the tissue, optimizing the force vector to obtain an optimized force vector, and actuating the end effector after applying the optimized force vector on the end effector.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: June 15, 2021
    Inventors: Mark D. Overmyer, Sol A. Posada, Joshua D. Young, Mark A. Davison, Christopher A. Denzinger
  • Publication number: 20210129357
    Abstract: A surgical instrument and method of operating same includes an end effector and a shaft assembly. The shaft assembly has proximal and distal shaft portions respectively extending along proximal and distal axes, a first elongate member, and an articulation section. The articulation section extends between the proximal and distal shaft portions and is configured to articulate about a first articulation axis and about a second articulation axis to thereby respectively deflect the end effector along a first plane and a second plane. The articulation section has a first lumen radially offset from the proximal and distal axes that longitudinally intersects the first and second articulation axes. The first lumen movably supports the first elongate member such that the radial spacing of the first elongate member is maintained relative to the proximal and distal axes at each of the first and second articulation axes during deflection of the end effector.
    Type: Application
    Filed: September 23, 2020
    Publication date: May 6, 2021
    Inventors: Mark A. Davison, Jason A. Hill, William G. Saulenas, Christopher W. Birri, Thomas J. Erb
  • Publication number: 20210068891
    Abstract: The present disclosure provides a surgical instrument that includes an end effector having a first jaw, a second jaw that is movable relative to the first jaw, and at least one electrode in the first jaw. The surgical instrument also includes a control circuit configured to provide electrosurgical energy to the at least one electrode and a electrical conductor electrically connected between the end effector and the control circuit. The control circuit includes a shaft control segment and an electrosurgical energy control segment. The shaft control segment is configured to provide a control signal for operating the end effector to the end effector through the electrical conductor. The electrosurgical energy control segment is configured to provide the electrosurgical energy to the at least one electrode through the electrical conductor.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 11, 2021
    Inventors: Jeffrey D. Messerly, David C. Yates, Jason L. Harris, Frederick E. Shelton, IV, Mark A. Davison
  • Patent number: 10888369
    Abstract: The present disclosure provides a surgical instrument that includes an end effector having a first jaw, a second jaw that is movable relative to the first jaw, and at least one electrode in the first jaw. The surgical instrument also includes a control circuit configured to provide electrosurgical energy to the at least one electrode and a electrical conductor electrically connected between the end effector and the control circuit. The control circuit includes a shaft control segment and an electrosurgical energy control segment. The shaft control segment is configured to provide a control signal for operating the end effector to the end effector through the electrical conductor. The electrosurgical energy control segment is configured to provide the electrosurgical energy to the at least one electrode through the electrical conductor.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 12, 2021
    Assignee: Ethicon LLC
    Inventors: Jeffrey D. Messerly, David C. Yates, Jason L. Harris, Frederick E. Shelton, IV, Mark A. Davison
  • Patent number: D906355
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: December 29, 2020
    Assignee: Ethicon LLC
    Inventors: Jeffrey D. Messerly, David C. Yates, Jason L. Harris, Frederick E. Shelton, IV, Mark A. Davison
  • Patent number: D908216
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 19, 2021
    Assignee: Ethicon LLC
    Inventors: Jeffrey D. Messerly, David C. Yates, Jason L. Harris, Frederick E. Shelton, IV, Mark A. Davison