Patents by Inventor Chad P. Boudreaux

Chad P. Boudreaux 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: 20210212691
    Abstract: In one general aspect, various embodiments of the present invention can include a motorized surgical cutting and fastening instrument having a drive shaft, a motor selectively engageable with the drive shaft, and a manual return mechanism configured to operably disengage the motor from the drive shaft and retract the drive shaft. In at least one embodiment, a surgeon, or other operator of the surgical instrument, can utilize the manual return mechanism to retract the drive shaft after it has been advanced, especially when the motor, or a power source supplying the motor, has failed or is otherwise unable to provide a force sufficient to retract the drive shaft.
    Type: Application
    Filed: January 21, 2021
    Publication date: July 15, 2021
    Inventors: Bret W. Smith, Daniel J. Abbott, Richard F. Schwemberger, Frederick E. Shelton, IV, Chad P. Boudreaux, Brett E. Swensgard, Ryan J. Laurent
  • Publication number: 20210196334
    Abstract: Disclosed is a surgical instrument with an end-effector adapted and configured to deliver a plurality of energy modalities to tissue at a distal end thereof. The energy modalities may be applied simultaneously, independently, or sequentially. A generator is electrically coupled to the surgical instrument and is configured to supply a plurality of energy modalities to the end-effector. In one aspect, the generator is configured to supply electrosurgical energy (e.g., monopolar or bipolar radio frequency (RF) energy) and ultrasonic energy to the end-effector to allow the end-effector to interact with the tissue. The energy modalities may be supplied to the end-effector by a single generator or multiple generators.
    Type: Application
    Filed: May 29, 2020
    Publication date: July 1, 2021
    Inventors: John M. Sarley, Chad P. Boudreaux, Tyler N. Brehm, Ellen E. Burkart, Jeffrey D. Messerly, Craig N. Faller, Robert S. Bishop, Michael A. Keenan, William A. Olson, Richard W. Flaker, Frederick E. Shelton, IV, Frederick L. Estera, Bruce Brunson, JR., Guion Y. Lucas, Demetrius N. Harris, Stephen M. Leuck, Nina Mastroianni, John E. Brady, Wei Guo, Geoffrey S. Strobl, Joseph S. Salguero, Lauren M. Valente, Joseph H. Kemper
  • Publication number: 20210196351
    Abstract: An end-effector is disclosed. The end-effector includes a clamp arm and an ultrasonic blade configured to acoustically couple to an ultrasonic transducer and electrically couple to a pole of an electrical generator. The clamp arm includes a clamp jaw, a clamp arm pad, and a cantilever electrode that is free to deflect. The cantilever electrode is configured to electrically couple to an opposite pole of the electrical generator. Also disclosed are configurations where the clamp arm includes a peripheral cantilever electrode and a clamp arm pad extending beyond the electrode, a floating cantilever electrode and a resilient clamp arm pad, an interlocked cantilever electrode plate and a clamp arm pad configured to receive the plate, a laterally deflectable cantilever electrode and a clamp arm pad extending beyond the electrode, and a flexible cantilever electrode and a clamp arm pad extending beyond the electrode.
    Type: Application
    Filed: May 29, 2020
    Publication date: July 1, 2021
    Inventors: John M. Sarley, Chad P. Boudreaux, Tyler N. Brehm, Wei Guo, Ellen E. Burkart, Jeffrey D. Messerly, Craig N. Faller, Robert S. Bishop, Michael A. Keenan, William A. Olson, Richard W. Flaker, Frederick E. Shelton, IV
  • Patent number: 11045275
    Abstract: A surgical instrument includes a body, an ultrasonic blade, a clamp arm, and a resilient member. The body includes an electrical conductor and defines a longitudinal axis. The clamp arm is pivotably coupled with the body at a pivot assembly. The clamp arm is operable to compress tissue against the ultrasonic blade. The clamp arm includes an electrode operable to apply RF energy to tissue, wherein the clamp arm is configured to be loaded onto and removed from the body at the pivot assembly along a path that is transverse to the longitudinal axis defined by the body. The resilient member is located within the pivot assembly. The resilient member is configured to provide electrical continuity between the electrode of the clamp arm and the electrical conductor of the body.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: June 29, 2021
    Assignee: Cilag GmbH International
    Inventors: Chad P. Boudreaux, Phillip H. Clauda, John B. Schulte, William B. Weisenburgh, II, Timothy S. Holland, Ryan M. Asher, Tylor C. Muhlenkamp, Brian D. Black, Kristen G. Denzinger, Amy L. Benchek
  • Publication number: 20210186490
    Abstract: A staple cartridge comprising a cartridge body, staples removably stored in the cartridge body, and a sled configured to drive the staples out of the cartridge body is disclosed. In use, the staple cartridge is seatable in a jaw of a stapling instrument which is positioned opposite a movable jaw. The surgical instrument further comprises a closure lockout which prevents the movable jaw from being closed if the staple cartridge is not seated in the stapling instrument. The surgical instrument also comprises a firing lockout which prevents the stapling instrument from being fired if the sled is not in a proximal unfired position when the staple firing stroke is initiated.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 24, 2021
    Inventors: Frederick E. Shelton, IV, Jason L. Harris, Seth Daniel Holdmeyer, Chad P. Boudreaux, Richard W. Timm, Gregory J. Bakos
  • Publication number: 20210186492
    Abstract: A replaceable staple cartridge for use with a surgical instrument is disclosed. The replaceable staple cartridge comprises a cartridge body, staple cavities defined in the cartridge body, staples removably positioned in the staple cavities, and staple drivers configured to support the staples in the staple cavities. The staple drivers are movable between an unfired position and a fired position. The staple cartridge further comprises a wedge sled, wherein the wedge sled is configured to motivate the staple drivers from the unfired position toward the fired position, and driver retention members extending into the staple cavities. The driver retention members are configured to retain the staple drivers in the unfired position.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 24, 2021
    Inventors: Frederick E. Shelton, IV, Jason L. Harris, Chad P. Boudreaux, Chester O. Baxter, III
  • Publication number: 20210186495
    Abstract: Methods for operating a surgical instrument are disclosed. In various instances, the methods include preventing the operation of the surgical instrument in some capacity if an unspent staple cartridge is not seated in the surgical instrument. Moreover, in various instances, the methods include preventing the operation of the surgical instrument in some capacity if the surgical instrument cannot identify and/or authenticate the staple cartridge seated in the surgical instrument.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 24, 2021
    Inventors: Frederick E. Shelton, IV, Jason L. Harris, Seth D. Holdmeyer, Chad P. Boudreaux, Richard W. Timm, Gregory J. Bakos, Mark S. Zeiner
  • Publication number: 20210186502
    Abstract: A staple cartridge comprising a firing member and a sled releasably attachable to the firing member is disclosed.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 24, 2021
    Inventors: Frederick E. Shelton, IV, Jason L. Harris, Chad P. Boudreaux
  • Publication number: 20210186498
    Abstract: A surgical instrument comprising a first jaw, a second jaw rotatable relative to the first jaw, and a closure system for closing the second jaw is disclosed. The closure system comprises a multi-stage closure system. In at least one instance, the closure system comprises a first closure member which closes the second jaw quickly, but with low force, and a second closure member which closes the second jaw more slowly, but with a higher force.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 24, 2021
    Inventors: Chad P. Boudreaux, Frederick E. Shelton, IV, Chester O. Baxter, III, Michael J. Stokes, Jason L. Harris
  • Patent number: 11039877
    Abstract: A surgical instrument includes an end effector, a handle assembly, and a latch assembly. The end effector includes a first jaw, a second jaw pivotably coupled with the first jaw, a knife, and an electrode assembly. The handle assembly includes a housing associated with the first jaw, and an arm associated with the second jaw. The arm can pivot the second jaw between an open position and a closed position. The latch assembly can transition between an unlatched configuration and a latched configuration. The latch assembly can prevent the arm from pivoting the second jaw from the closed position toward the open position in the latched configuration. The latch assembly can allow the arm to pivot the second jaw from the closed position toward the open position in the unlatched configuration.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 22, 2021
    Assignee: Cliag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11039848
    Abstract: A surgical instrument includes an end effector that has an ultrasonic blade and a clamp arm that is movable relative to the ultrasonic blade from an opened position toward a closed position. The ultrasonic blade and the clamp arm are able to receive tissue in the opened position, and the clamp arm is able to clamp tissue against the ultrasonic blade in the closed position. There is a first electrode connected with the clamp arm, and a second electrode associated with the ultrasonic blade. The electrodes are able to apply bipolar radiofrequency (RF) energy to tissue captured in the end effector. The instrument further has a first button for activating the ultrasonic blade to provide a cutting and sealing mode at the end effector. There is also a second button for activating the electrodes to provide a spot coagulation mode at the end effector.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: June 22, 2021
    Assignee: Cilag GmbH International
    Inventors: Ryan M. Asher, Chad P. Boudreaux, Kristen G. Denzinger, Cameron R. Nott, Eitan T. Wiener
  • Publication number: 20210177497
    Abstract: An apparatus includes a body, a shaft assembly, an end effector, and an articulation section. The articulation section is longitudinally interposed between a distal end of the shaft assembly and a proximal end of the end effector. The articulation section is configured to flex to thereby provide deflection of the end effector away from the longitudinal axis of the shaft assembly. The articulation section includes a first frame member, a second frame member, and a sleeve. The proximal end of the second frame member is proximal to the proximal end of the first frame member. The sleeve is disposed about the first and second frame members.
    Type: Application
    Filed: February 1, 2021
    Publication date: June 17, 2021
    Inventors: Candice Otrembiak, Chad P. Boudreaux, Barry C. Worrell, Nathan Cummings, Kris E. Kallenberger, Michael R. Lamping
  • Patent number: 11033293
    Abstract: Disclosed is a surgical instrument that includes a rotatable shaft having an articulation section and an ultrasonic waveguide disposed within the shaft. The ultrasonic waveguide is configured to articulate at the articulation section. The ultrasonic waveguide is disposed within the shaft. A rotatable clamp arm is located distal of the articulation section of the rotatable shaft. The rotatable clamp arm is configured to rotate independently of the rotatable shaft distal of the articulation section.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: June 15, 2021
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11033325
    Abstract: An end effector of an electrosurgical device may include one or more electrodes and a movable electrode scraper having a plurality of features in mechanical communication with a surface of the one or more electrodes and configured to move across the surface of the electrodes thereby removing biological debris adhering to the surface of the electrodes. The electrosurgical device may include a diverter in mechanical communication with the one or more electrodes. The scraper may also be configured to move across the surface of the diverter. The scraper may be operated by the action of an extendable mechanism in mechanical communication with a shaft of the electrosurgical device. An end effector of an electrosurgical device may include one or more electrodes and a movable electrode sleeve configured to movably cover the one or more electrodes.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: June 15, 2021
    Assignee: Cilag GmbH International
    Inventors: David C. Yates, David A. Witt, Frederick E. Shelton, IV, John A. Weed, III, Chad P. Boudreaux
  • Publication number: 20210169516
    Abstract: Various systems and methods for controlling an ultrasonic surgical instrument according to the location of tissue grasped within an end effector are disclosed. A control circuit can be configured to apply varying power levels, via a generator, to an ultrasonic transducer driving an ultrasonic electromechanical system to oscillate an ultrasonic blade. Further, the control circuit can measure impedances of the ultrasonic transducer corresponding to the varying power levels and determine a location of tissue positioned within the end effector according to a difference between the impedances of the ultrasonic transducer relative to a threshold.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 10, 2021
    Inventors: Kevin L. Houser, David C. Yates, Frederick E. Shelton, IV, Chad P. Boudreaux
  • Patent number: 11020170
    Abstract: A surgical instrument includes an end effector, a handle assembly, and a knife drive assembly. The end effector includes a pair of jaws, a knife, and an RF electrode assembly. The knife actuates between a pre-fired position and a fired position. An arm of the handle assembly is configured to pivot the second jaw between the open position and the closed position. The knife drive assembly includes an input assembly, a rotary assembly, and an output assembly. The input assembly travels a first proximal distance to rotate the rotary assembly. The rotary assembly rotates in response to travel of the input assembly along the first proximal distance to drive the output assembly a first distal distance to thereby actuate the knife from the pre-fired position toward the fired position. The first distal distance is greater than the first proximal distance.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 1, 2021
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11020169
    Abstract: A surgical instrument includes an end effector, a handle assembly, a knife drive assembly, and a lockout assembly. The end effector includes a pair of jaws, a knife, and an RF electrode. The handle assembly includes a housing associated with the first jaw, and an arm associated with the second jaw. The arm is pivotably coupled with the housing and pivots the second jaw between the open position and the closed position. The knife drive assembly includes a trigger slidably coupled with the housing, an actuating assembly, and a return assembly. The actuation assembly converts proximal translation of the trigger into distal actuation of the knife. The return assembly automatically actuates the knife from the fired position to the pre-fired position in response to the trigger reaching a predetermined proximal position. The lockout assembly prevents activation of the electrode and distal actuation of the knife while in the locked configuration.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 1, 2021
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11020200
    Abstract: A surgical instrument includes a body, an ultrasonic blade, a clamp arm assembly, and a detent assembly. The clamp arm assembly includes a clamp arm pivotably coupled with the body at a pivot assembly. The clamp arm is operable to compress tissue against the ultrasonic blade. The detent assembly is configured to provide tactile resistance to pivotal movement of the clamp arm relative to the body beyond a predefined pivot angle. The detent assembly is configured to permit pivotal movement of the clamp arm relative to the body beyond a predefined pivot angle upon application of a force sufficient to overcome the tactile resistance.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: June 1, 2021
    Assignee: Ethicon LLC
    Inventors: Chad P. Boudreaux, Monica L. Zeckel
  • Patent number: 11013511
    Abstract: A surgical system comprising a housing assembly, a shaft extending from the housing assembly, a closure system, an end effector extending from the shaft, and a rotation system is disclosed. The housing assembly comprises a motor. The end effector is configurable in an unclamped configuration and a clamped configuration. The end effector is moved into the clamped configuration by the closure system. The end effector comprises a staple cartridge and a firing member. The staple cartridge comprises a plurality staples. The firing member is configured to move through the staple cartridge and deploy the plurality of staples. The rotation system is configured to rotate the end effector about a rotation axis when the end effector is in the unclamped configuration and prevent the end effector from rotating about the rotation axis when the end effector is in the clamped configuration.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: May 25, 2021
    Assignee: Ethicon LLC
    Inventors: Zhifan F. Huang, Chad P. Boudreaux, Joseph C. Hueil, Dean B. Bruewer, David B. Smith
  • Patent number: 10993763
    Abstract: A surgical tool and control system therefor is provided. The surgical tool can include an instrument mount configured to engage with a robotic manipulator assembly, which can include a gear assembly configured to be actuated by the robotic manipulator assembly. The surgical tool can include an end effector coupled to the gear assembly, which is configured to be actuated by the gear assembly. The surgical tool can include a lockout configured to transition between a first state in which the lockout is physically engaged with the gear assembly to prevent a movement thereof and a second state in which the lockout is disengaged from the gear assembly. The surgical tool can include a control circuit configured to determine whether the end effector is in an energized state or a de-energized state and in the energized state, cause the lockout to transition between the first state and the second state.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: May 4, 2021
    Assignee: Ethicon LLC
    Inventors: Jonathan T. Batross, Gregory A. Trees, Foster B. Stulen, Randolph C. Stewart, Chad P. Boudreaux