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).

  • Patent number: 11406382
    Abstract: A surgical stapling assembly is disclosed. The surgical stapling assembly comprises a stapling instrument configured to receive a staple cartridge therein. The stapling instrument comprises a first jaw, a second jaw movable relative to the first jaw, a firing member configured to push a sled to deploy staples, and a lockout configured to prevent the firing member from advancing distally when the staple cartridge is not properly seated within the stapling instrument and when the sled of the staple cartridge is not in an unfired position, wherein a lockout key of the staple cartridge defeats a first stage of the lockout when the staple cartridge is fully seated in the stapling instrument, and wherein the sled defeats a second stage of the lockout when the sled is in the unfired position and the staple cartridge is fully seated in the stapling instrument.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: August 9, 2022
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Jason L. Harris, Chad P. Boudreaux, Gregory J. Bakos
  • Patent number: 11399855
    Abstract: In various embodiments, a surgical instrument is disclosed. The surgical instrument comprises a handle assembly having a closure trigger, a closure actuator coupled to the closure trigger at a first pivot, and a closure spring. The closure actuator moves proximally on a longitudinal axis in response to actuation of the closure trigger. The closure spring applies a force vector to the closure spring tangential to the longitudinal axis. A shaft assembly is coupled to the handle assembly. An end effector is coupled to a distal end of the shaft assembly. The end effector comprises a jaw assembly comprising a first jaw member and a second jaw member. The first jaw member is pivotally moveable with respect to the second jaw member. At least one of the first and second jaw members are operatively coupled to the closure actuator.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: August 2, 2022
    Assignee: Cilag GmbH International
    Inventors: Chad P. Boudreaux, Catherine A. Corbett, Gregory A. Trees, Scott R. Bingham
  • Publication number: 20220225992
    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: March 30, 2022
    Publication date: July 21, 2022
    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: 20220202439
    Abstract: A surgical apparatus includes a body, an ultrasonic transducer, a shaft, an acoustic waveguide, an articulation section, an end effector, and a restricting member. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The acoustic waveguide is coupled with the transducer. The articulation section is operable to flex to thereby deflect the end effector from a longitudinal axis defined by the shaft. The restricting member is operable to restrict lateral deflection of the end effector. The restricting member is further operable to cooperate with a translating member to rigidize the articulation section when the end effector is aligned with the longitudinal axis. Such rigidization includes removing any “play” or other small movement that might otherwise be provided by the articulation section due to manufacturing tolerances and/or looseness between parts.
    Type: Application
    Filed: January 27, 2022
    Publication date: June 30, 2022
    Inventor: Chad P. Boudreaux
  • Publication number: 20220202514
    Abstract: A surgical tool configured to receive rotary inputs from a robotic surgical system. The surgical tool comprises a distal end effector comprising jaws for clamping tissue therebetween, an intermediate shaft portion coupled to the distal end effector, and a proximal housing coupled to the intermediate shaft portion. The proximal housing comprises an arrangement of rotary drives comprising a first rotary drive. The first rotary drive comprises an input shaft configured to receive a rotary input from the robotic surgical system, a transition nut slidably positioned on the input shaft, and an output gear. The first rotary drive further comprises a high-speed gear configured to selectively drive the output gear, a high-torque gear configured to selectively drive the output gear, and a spring arrangement configured to bias the transition nut along the input shaft from a high-speed operating state to a high-torque operating state upon obtaining a threshold torque.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Inventor: Chad P. Boudreaux
  • Patent number: 11369377
    Abstract: A surgical stapling assembly is disclosed that comprises a retainer that is configured to be removably mounted to a staple cartridge that is configured to be operably seated in a stapling device. The retainer comprises an authentication key that is configured to defeat a first firing member lockout provided the stapling device. The stapling device further comprises a second lockout that is configured to prevent the firing member of the device from advancing through a staple firing stroke when a spent staple cartridge is seated in said stapling device.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: June 28, 2022
    Assignee: Cilag GmbH International
    Inventors: Chad P. Boudreaux, Gregory J. Bakos, Richard W. Timm
  • Patent number: 11357503
    Abstract: A retainer for use with a staple cartridge that is configured for use with a surgical stapling device is disclosed. The retainer comprises a retainer body that is configured to be received on the staple cartridge. A plurality of retention features protrude from the retainer body for releasable engagement with the staple cartridge to form a cartridge assembly. The retainer further comprises an authentication key that is configured to defeat a lockout in the surgical stapling device when the cartridge assembly is seated therein. At least one of the retention features is configured to be removed from the retainer body after the retainer has been removed from the staple cartridge.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: June 14, 2022
    Assignee: Cilag GmbH International
    Inventors: Gregory J. Bakos, Chad P. Boudreaux, Richard W. Timm, Jason L. Harris, Frederick E. Shelton, IV
  • Publication number: 20220167983
    Abstract: A surgical instrument is disclosed herein. The surgical instrument includes a handheld device and an adapter assembly. The handheld device includes a first drive assembly and a power source. The adapter assembly includes an outer housing that defines an internal cavity configured to accommodate a handheld device. The adapter assembly is configured to establish a sterile barrier around the handheld device. The surgical instrument includes an energy management system configured to extract energy dissipated by the handheld device from the internal cavity without disrupting the sterile barrier. In some aspects, the surgical instrument further includes a plurality of interchangeable end effectors and the adapter assembly includes a drive interface assembly.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 2, 2022
    Inventors: Frederick E. Shelton, IV, Kevin M. Fiebig, Demetrius N. Harris, Patrick G. McElhaney, JR., Jesse Luo, Chad P. Boudreaux
  • Patent number: 11337746
    Abstract: An ultrasonic device may include an electromechanical ultrasonic system defined by a predetermined resonant frequency, the electromechanical ultrasonic system including an ultrasonic transducer coupled to an ultrasonic blade. A method of controlling energy delivered to the ultrasonic device may include determining an impedance of the ultrasonic transducer during a transection process, analyzing the impedance of the ultrasonic transducer, profiling the ultrasonic blade based on the impedance, and adjusting a power delivered to the transducer during the transection process based on the profile of the blade. The method may further include pulsing, the power delivered to the ultrasonic transducer, determining changes in tissue characteristics of tissue located in an end effector, wherein the changes in tissue characteristics is determined between pulses, and adjusting power delivered to the ultrasonic transducer based on the tissue changes throughout the transection.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: May 24, 2022
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11331088
    Abstract: Various exemplary methods and devices for auto return of articulated end effectors are provided. In general, a surgical device can include an end effector configured to articulate. The device can include an actuator configured to be actuated to move the end effector from an articulated position to an unarticulated position. In at least some embodiments, the actuator can also be configured to be actuated to move the end effector from the unarticulated position to the articulated position. In at least some embodiments, the device can include the actuator and include another actuator configured to rotate the end effector about a longitudinal axis of an elongate shaft having the end effector at a distal end thereof. In at least some embodiments, the device can include the actuator and include another actuator configured to articulate the end effector from the unarticulated position to the articulated position.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 17, 2022
    Assignee: CILAG GMBH INTERNATIONAL
    Inventor: Chad P. Boudreaux
  • Patent number: 11331100
    Abstract: A retainer system for use with staple cartridges configured for use with a surgical stapling device is disclosed. The retainer comprises a retainer body that is configured to be attached to the staple cartridge by retention features. The system includes a tool that moves the retention features between a first state wherein the retention features prevent the retainer from being attached to the staple cartridge to a second state where the retainer may be coupled to the staple cartridge by the retention features.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: May 17, 2022
    Assignee: Cilag GmbH International
    Inventors: Chad P. Boudreaux, Gregory J. Bakos, Frederick E. Shelton, IV
  • Patent number: 11317915
    Abstract: A stapling system that comprises a retainer for use with staple cartridges that are configured for use with multiple surgical stapling devices that comprise different lockout arrangements is disclosed. The retainer is configured to be releasably attached to a staple cartridge to form a cartridge assembly. The retainer comprises an authentication key that is configured to defeat a lockout arrangement in any one of the surgical stapling devices in which the cartridge assembly is seated.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: May 3, 2022
    Assignee: Cilag GmbH International
    Inventors: Chad P. Boudreaux, Gregory J. Bakos, Richard W. Timm
  • Patent number: 11311326
    Abstract: An electrosurgical instrument is disclosed including an end effector, a shaft assembly, and a link. The end effector includes a first jaw rotatable relative to a second jaw between an open position and a closed position. The shaft assembly includes an outer tube, a jaw tube disposed within the outer tube, an actuation band operably coupled to the jaw tube. The jaw tube is configured to move within the outer tube between a proximal end and a distal end. The link includes a first end and a second end. The first end of the link is pivotably coupled to the actuation band. The second end of the link is pivotably coupled to the first jaw. The jaw tube is configured to rotate the first jaw towards the closed position based on movement of the jaw tube towards the proximal end.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: April 26, 2022
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11298129
    Abstract: A method for operating a surgical stapling device that includes a lockout for preventing the surgical stapling device from operating is disclosed. The method includes installing a retainer on a staple cartridge to form a cartridge assembly. The method includes seating the cartridge assembly in the surgical stapling device to bring an authentication key on the retainer into actuation contact with the lockout to move the lockout out of a locked position to an unlocked position. The method further includes removing the retainer from the staple cartridge while retaining the lockout in the unlocked position.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 12, 2022
    Assignee: Cilag GmbH International
    Inventors: Gregory J. Bakos, Chad P. Boudreaux, Frederick E. Shelton, IV, Jason L. Harris, Richard W. Timm
  • Patent number: 11298130
    Abstract: A retainer for use with a staple cartridge that is configured for use with a stapling device is disclosed. The retainer comprises a retainer body that is configured to be removably coupled to the staple cartridge to form a cartridge assembly. The retainer further comprises an authentication key that is oriented in a first configuration to defeat a lockout in the surgical stapling device when the cartridge assembly is seated in the surgical stapling device. The authentication key is movable to a second configuration after the cartridge assembly is removed from the stapling device such that the authentication key is unable to return to the first configuration.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 12, 2022
    Assignee: Cilag GmbH International
    Inventors: Gregory J. Bakos, Chad P. Boudreaux, Chad E. Eckert, Morgan R. Hunter
  • Patent number: 11291444
    Abstract: A surgical stapling assembly is disclosed that comprises a retainer that is configured to be removably mounted to a staple cartridge that is configured to be operably seated in a stapling device. The retainer comprises an authentication key that is configured to defeat a first jaw lockout of the stapling device that is configured to prevent the jaws of the stapling device from closing. The stapling device further comprises a second lockout that is configured to prevent a firing member of the stapling device from advancing through a staple firing stroke when a spent staple cartridge is seated in one of the jaws.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 5, 2022
    Assignee: Cilag GmbH International
    Inventors: Chad P. Boudreaux, Gregory J. Bakos, Richard W. Timm, Jason L. Harris
  • Publication number: 20220079659
    Abstract: A surgical instrument includes an end effector, a handle assembly, and a knife drive assembly. The end effector includes a first jaw, a second jaw, a knife, and an electrode assembly. The handle assembly includes a housing, and an arm. The arm may pivot the second jaw between the open position and the closed position. The knife drive assembly includes an input assembly, and output assembly coupled with the knife, and a compound pulley assembly. The compound pulley assembly includes a pair of pulley wheels each having an input track, an output track, an input cable, and an output cable. The input assembly can drive the input cable a first proximal distance in order to rotate the pair of pulley wheels in a first angular direction, thereby driving the output cable a first distal direction to actuate the knife from the pre-fired position toward the fired position.
    Type: Application
    Filed: September 27, 2021
    Publication date: March 17, 2022
    Inventor: Chad P. Boudreaux
  • Publication number: 20220079591
    Abstract: A method for operating a surgical stapling device that includes a lockout for preventing the surgical stapling device from operating is disclosed. The method includes installing a retainer on a staple cartridge to form a cartridge assembly. The method includes seating the cartridge assembly in the surgical stapling device to bring an authentication key on the retainer into actuation contact with the lockout to move the lockout out of a locked position to an unlocked position. The method further includes removing the retainer from the staple cartridge while retaining the lockout in the unlocked position.
    Type: Application
    Filed: November 4, 2021
    Publication date: March 17, 2022
    Inventors: Gregory J. Bakos, Chad P. Boudreaux, Frederick E. Shelton, IV, Jason L. Harris, Richard W. Timm
  • Patent number: 11272953
    Abstract: A surgical apparatus includes a body, an ultrasonic transducer, a shaft, an acoustic waveguide, an articulation section, an end effector, and a restricting member. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The acoustic waveguide is coupled with the transducer. The articulation section is operable to flex to thereby deflect the end effector from a longitudinal axis defined by the shaft. The restricting member is operable to restrict lateral deflection of the end effector. The restricting member is further operable to cooperate with a translating member to rigidize the articulation section when the end effector is aligned with the longitudinal axis. Such rigidization includes removing any “play” or other small movement that might otherwise be provided by the articulation section due to manufacturing tolerances and/or looseness between parts.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: March 15, 2022
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: D952144
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 17, 2022
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux