Patents by Inventor Gregory A. Trees

Gregory A. Trees 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: 10357311
    Abstract: A surgical instrument includes a body, an elongate shaft extending distally from the body, an end effector disposed at a distal end of the elongate shaft, and a firing beam. The end effector has a first jaw and a second jaw. The first jaw is pivotable toward and away from the second jaw to capture tissue. The end effector further comprises at least one electrode. The at least one electrode is operable to apply RF energy to tissue captured between the first jaw and the second jaw.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: July 23, 2019
    Assignee: Ethicon LLC
    Inventors: Susan Arshonsky, Catherine A. Corbett, Megan A. Broderick, Geoffrey S. Strobl, Gregory A. Trees
  • Publication number: 20190209201
    Abstract: Various embodiments described herein are directed to surgical instruments with visual feedback. In one embodiment, a surgical instrument with visual feedback comprises an end effector. The end effector has a first jaw member and a second jaw member. At least one sensor is coupled to the end effector. The at least one sensor is configured convert at least one state of the end effector to a feedback signal. The feedback signal is corresponding to the at least one state of the end effector. The feedback signal may be transmitted to a display to render a visual representation of the at least one state of the end effector. The surgical instrument may further comprise an instrument mounting portion to mount to a robotic surgical system. The instrument mounting portion comprises an interface to mechanically and electrically interface to the surgical instrument.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 11, 2019
    Inventors: Chad P. Boudreaux, Gregory W. Johnson, Kristen T. Shoger, Nicholas G. Molitor, Randolph C. Stewart, Gregory A. Trees, David K. Norvell, Michael J. Andreyko, Shawn C. Snyder, Jonathan T. Batross, Megan A. O'Connor
  • Publication number: 20190201073
    Abstract: Various aspects of a generator, ultrasonic device, and method for estimating a state of an end effector of an ultrasonic device are disclosed. The ultrasonic device includes an electromechanical ultrasonic system defined by a predetermined resonant frequency, including an ultrasonic transducer coupled to an ultrasonic blade. A control circuit measures a complex impedance of an ultrasonic transducer, wherein the complex impedance is defined as Z g ? ( t ) = V g ? ( t ) I g ? ( t ) . The control circuit receives a complex impedance measurement data point and compares the complex impedance measurement data point to a data point in a reference complex impedance characteristic pattern. The control circuit then classifies the complex impedance measurement data point based on a result of the comparison analysis and assigns a state or condition of the end effector based on the result of the comparison analysis.
    Type: Application
    Filed: August 28, 2018
    Publication date: July 4, 2019
    Inventors: Cameron R. Nott, Foster B. Stulen, Fergus P. Quigley, John E. Brady, Gregory A. Trees, Amrita Singh Sawhney, Rafael J. Ruiz Ortiz, Patrick J. Scoggins, Kristen G. Denzinger, Craig N. Faller, Madeleine C. Jayme, Alexander R. Cuti, Matthew S. Schneider, Chad P. Boudreaux, Brian D. Black, Maxwell Rockman, Gregory D. Bishop, Frederick E. Shelton, IV, David C. Yates
  • Publication number: 20190201046
    Abstract: A method for controlling an operation of an ultrasonic blade of an ultrasonic electromechanical system is disclosed. The method includes providing an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade via an ultrasonic waveguide; applying, by an energy source, a power level to the ultrasonic transducer; determining, by a control circuit coupled to a memory, a mechanical property of the ultrasonic electromechanical system; comparing, by the control circuit, the mechanical property with a reference mechanical property stored in the memory; and adjusting, by the control circuit, the power level applied to the ultrasonic transducer based on the comparison of the mechanical property with the reference mechanical property.
    Type: Application
    Filed: December 4, 2018
    Publication date: July 4, 2019
    Inventors: Frederick E. Shelton, IV, David C. Yates, Jason L. Harris, Kevin L. Houser, Foster B. Stulen, John E. Brady, Gregory A. Trees, Patrick J. Scoggins, Madeleine C. Jayme, Kristen G. Denzinger, Cameron R. Nott, Craig N. Faller, Amrita S. Sawhney, Eric M. Roberson, Stephen M. Leuck, Brian D. Black, Jeffrey D. Messerly, Fergus P. Quigley, Tamara Widenhouse
  • Publication number: 20190201038
    Abstract: Various systems and methods for determining the composition of tissue via an ultrasonic surgical instrument are disclosed. A control circuit can be configured to monitor the change in resonant frequency of an ultrasonic electromechanical system of the ultrasonic surgical instrument as the ultrasonic blade oscillates against a tissue and determine the composition of the tissue accordingly. In some aspects, the control circuit can be configured to modify the operation of the ultrasonic electromechanical system or other operational parameters of the ultrasonic surgical instrument according to the detected tissue composition.
    Type: Application
    Filed: August 28, 2018
    Publication date: July 4, 2019
    Inventors: David C. Yates, Jason L. Harris, Frederick E. Shelton, IV, Kevin L. Houser, John E. Brady, Gregory A. Trees, Patrick J. Scoggins, Madeleine C. Jayme, Kristen G. Denzinger, Cameron R. Nott, Craig N. Faller, Amrita S. Sawhney, Eric M. Roberson, Stephen M. Leuck, Brian D. Black
  • Patent number: 10335183
    Abstract: A control system for a surgical robot is disclosed. The control system includes a controller, a sensor, a feedback device, a first socket, and a stand-alone input device. The handheld user interface may control a function of a robotic surgical system and is coupled to the sensor and the controller. The sensor is coupled to the controller. The feedback device is coupled to the controller and is configured to provide feedback associated with the robotic surgical system to a user. The controller is communicatively coupleable to the robotic surgical system and is configured to send robot control signals to the robotic surgical system, to receive feedback signals from the robotic surgical system, and to send feedback control signals to the feedback device to control the feedback provided to the user. The controller is configured to couple to a stand-alone input device through the first socket.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: July 2, 2019
    Assignee: Ethicon LLC
    Inventors: Barry C. Worrell, Geoffrey S. Strobl, Gregory A. Trees, Jonathan T. Batross, Nicholas G. Molitor, Kristen T. Shoger, David K. Norvell, Michael J. Andreyko, Gregory W. Johnson, Shawn C. Snyder
  • Patent number: 10335180
    Abstract: Surgical devices and methods are described herein that provide improved motor control and feedback, thereby combining advantages of manually-operated and powered surgical devices. In one embodiment, a surgical device includes a proximal handle portion that includes a motor, a distal end effector coupled to the handle portion, and a cutting element configured to cut tissue engaged by the end effector, wherein the motor is configured to supply power that moves the cutting element. The device also includes a motor control mechanism configured to cause the amount of the power to dynamically change in response to a manual user input when the cutting element is moving.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: July 2, 2019
    Assignee: Ethicon LLC
    Inventors: Eric N. Johnson, Kevin L. Houser, David C. Yates, Rudolph H. Nobis, Chad P. Boudreaux, Gregory A. Trees, Geoffrey S. Strobl, Gavin M. Monson
  • Publication number: 20190105067
    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: Application
    Filed: October 5, 2018
    Publication date: April 11, 2019
    Inventors: Chad P. Boudreaux, Catherine A. Corbett, Gregory A. Trees, Scott R. Bingham
  • Patent number: 10201365
    Abstract: Various embodiments described herein are directed to surgical instruments with visual feedback. In one embodiment, a surgical instrument with visual feedback comprises an end effector. The end effector has a first jaw member and a second jaw member. At least one sensor is coupled to the end effector. The at least one sensor is configured convert at least one state of the end effector to a feedback signal. The feedback signal is corresponding to the at least one state of the end effector. The feedback signal may be transmitted to a display to render a visual representation of the at least one state of the end effector. The surgical instrument may further comprise an instrument mounting portion to mount to a robotic surgical system. The instrument mounting portion comprises an interface to mechanically and electrically interface to the surgical instrument.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: February 12, 2019
    Assignee: Ethicon LLC
    Inventors: Chad P. Boudreaux, Gregory W. Johnson, Kristen T. Shoger, Nicholas G. Molitor, Randolph Stewart, Gregory A. Trees, David K. Norvell, Michael J. Andreyko, Shawn C. Snyder, Jonathan T. Batross, Megan A. O'Connor
  • Patent number: 10092310
    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: March 27, 2014
    Date of Patent: October 9, 2018
    Assignee: Ethicon LLC
    Inventors: Chad P. Boudreaux, Catherine A. Corbett, Gregory A. Trees, Scott R. Bingham
  • Publication number: 20180280076
    Abstract: Methods and devices for controlling motorized surgical devices are provided. In general, the methods and devices can allow a surgical device to grasp and cut tissue. In some embodiments, the device can include at least one sensor and a motor, and an output of the motor can be configured to be adjusted based at least in part on an output from the at least one sensor. The output of the motor can be configured to provide power for translation of a cutting element along an end effector of the device. Adjusting the motor's output can cause the cutting element to translate through the end effector at different speeds, thereby allowing the cutting element to cut through tissue being grasped by the end effector at different speeds.
    Type: Application
    Filed: April 27, 2018
    Publication date: October 4, 2018
    Inventors: Gregory A. Trees, Chad P. Boudreaux, Matthew C. Miller, Mark A. Davison, David C. Yates, John A. Hibner, Jill A. Inkrott-Smith
  • Publication number: 20180280075
    Abstract: An electrosurgical system includes an RF current generator, a handle body, and an end effector. The end effector may include a first and a second energy delivery surface. At least a portion of either first or second energy delivery surfaces, or both, may include one or more patterned coatings of an electrically non-conducting non-stick material. The material may be deposited on a surface of, within a depression in, or on features extending from the energy surfaces, or through an overmolding process. The patterned coating may be formed from a coating of the material from which portions have been removed. An energy delivery surface has a first area, and the patterned coating has a second area. A ratio of the second area to the first area may be less than or equal to about 0.9, less than or equal to about 0.7, or less than or equal to about 0.5.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 4, 2018
    Inventors: Cameron R. Nott, Gregory A. Trees
  • Publication number: 20180235691
    Abstract: A surgical system includes a module for compiling a plurality of operational parameters of the surgical system during a plurality of treatment cycles performed by the surgical system. The module includes a processor and a memory unit, the processor configured to store in the memory unit values of the plurality of operational parameters associated with each of the plurality of treatment cycles, wherein the processor is configured to identify a subset of the stored values of the plurality of operational parameters temporally proximate to an intervening event.
    Type: Application
    Filed: March 8, 2018
    Publication date: August 23, 2018
    Inventors: Aaron C. Voegele, Phillip H. Clauda, Kevin L. Houser, Robert A. Kemerling, Mark A. Davison, Foster B. Stulen, Gregory A. Trees
  • Publication number: 20180153573
    Abstract: Surgical instruments having articulating portions or joints are described herein. In one embodiment, a surgical instrument can include a distal end effector, a proximal actuating portion, and an articulating portion disposed between the end effector and the actuating portion. The articulating portion can include an inner component formed of a first material and an outer component formed of a second material, wherein a modulus of elasticity of the first material is higher than a modulus of elasticity of the second material. Such an instrument can be less complex and less expensive than known articulation mechanisms while providing similar capabilities.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 7, 2018
    Inventors: Barry Worrell, Gregory A. Trees, William Douglas Shaw, JR., Kevin M. Montgomery
  • Patent number: 9980769
    Abstract: Methods and devices for controlling motorized surgical devices are provided. In general, the methods and devices can allow a surgical device to grasp and cut tissue. In some embodiments, the device can include at least one sensor and a motor, and an output of the motor can be configured to be adjusted based at least in part on an output from the at least one sensor. The output of the motor can be configured to provide power for translation of a cutting element along an end effector of the device. Adjusting the motor's output can cause the cutting element to translate through the end effector at different speeds, thereby allowing the cutting element to cut through tissue being grasped by the end effector at different speeds.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: May 29, 2018
    Assignee: Ethicon LLC
    Inventors: Gregory A. Trees, Chad P. Boudreaux, Matthew C. Miller, Mark A. Davison, David C. Yates, John A. Hibner, Jill A. Inkrott-Smith
  • Publication number: 20180132887
    Abstract: A surgical instrument includes an ultrasonic waveguide extending through a body assembly. An ultrasonic blade connects to the ultrasonic waveguide. A clamp arm assembly of the surgical instrument is able to move from an opened position for receiving a tissue toward a closed position for clamping the tissue. The clamp arm assembly includes a clamp body and a clamp pad facing the ultrasonic blade. A clamp arm actuator of the surgical instrument is able to move from a first position toward a second position to direct the clamp arm assembly from the opened position toward the closed position. A modular coupling of the surgical instrument connects to the clamp pad such that at least the clamp pad can be disconnected relative to the ultrasonic blade for replacement thereof.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 17, 2018
    Inventors: Ryan M. Asher, Gregory D. Bishop, Brian D. Black, Chad P. Boudreaux, David J. Cagle, William E. Clem, Joseph Dennis, Kristen G. Denzinger, Benjamin D. Dickerson, Kevin M. Fiebig, Ellen Gentry, Christina M. Hough, John V. Hunt, Cody R. Jackson, Cory G. Kimball, Jeffrey D. Messerly, Gabriel I. Myers, Ion V. Nicolaescu, William A. Olson, Candice Otrembiak, Foster B. Stulen, John K. Swain, Gregory A. Trees, John A. Weed, III, William B. Weisenburgh, II, Eitan T. Wiener, Barry C. Worrell, David C. Yates, Monica L. Zeckel
  • Patent number: 9918730
    Abstract: Methods and devices for controlling motorized surgical devices are provided. In general, the methods and devices can allow a surgical device to grasp and cut tissue. In some embodiments, the device can include at least one sensor and a motor, and an output of the motor can be configured to be adjusted based at least in part on an output from the at least one sensor. The output of the motor can be configured to provide power for translation of a cutting element along an end effector of the device. Adjusting the motor's output can cause the cutting element to translate through the end effector at different speeds, thereby allowing the cutting element to cut through tissue being grasped by the end effector at different speeds.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: March 20, 2018
    Assignee: Ethicon LLC
    Inventors: Gregory A. Trees, Chad P. Boudreaux, Matthew C. Miller, Mark A. Davison, David C. Yates, John A. Hibner
  • Patent number: 9913680
    Abstract: A surgical system includes a module for compiling a plurality of operational parameters of the surgical system during a plurality of treatment cycles performed by the surgical system. The module includes a processor and a memory unit, the processor configured to store in the memory unit values of the plurality of operational parameters associated with each of the plurality of treatment cycles, wherein the processor is configured to identify a subset of the stored values of the plurality of operational parameters temporally proximate to an intervening event.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: March 13, 2018
    Assignee: Ethicon LLC
    Inventors: Aaron C. Voegele, Kevin L. Houser, Robert A. Kemerling, Gregory A. Trees
  • Patent number: 9877720
    Abstract: An electrosurgical device includes a body, an end effector, a cutting member, and a shaft. The end effector comprises a pair of jaws and at least one electrode that is operable to deliver RF energy to tissue clamped between the jaws. The cutting member is operable to cut tissue clamped between the jaws. The shaft includes an articulation section that is operable to selectively position the end effector at non-parallel positions relative to the longitudinal axis of the shaft. The body includes a controller operable to selectively actuate the articulation section. The controller may include a rotary knob, a pivoting knob, or a pivoting fin, among other things. An electrical coupling may contact a conductive moving member along at least two axes. A resiliently biased lever may assist a trigger in returning from an actuated position to a home position.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: January 30, 2018
    Assignee: Ethicon LLC
    Inventors: Barry C. Worrell, Zhifan F. Huang, Jason R. Lesko, Matthew C. Miller, Geoffrey S. Strobl, Gregory A. Trees, Charles S. Black, William E. Clem, Emron Henry, Kevin M. Montgomery
  • Publication number: 20180021082
    Abstract: Methods and devices for controlling motorized surgical devices are provided. In general, the methods and devices can allow a surgical device to grasp and cut tissue. In some embodiments, the device's motor can begin providing power for grasping and/or cutting tissue in response to an output from the device's sensor, the device can adjust power provided by the motor based on whether the device is clamping tissue or is being fired, the device can adjust an amount of power provided by the motor based on an amount of user-applied force to the device's actuator and/or can control drive direction of the motor based on the amount of the force, the device can maintain a force applied to the device, the device can self-shift the motor, and/or the device can adjust an amount of power provided to the device's end effector based on a degree of the end effector's closure.
    Type: Application
    Filed: October 4, 2017
    Publication date: January 25, 2018
    Inventors: Gregory A. Trees, Eric N. Johnson, Chad P. Boudreaux, Robert Laird, Rudolph H. Nobis, Geoffrey S. Strobl, Jason R. Lesko, John A. Hibner, David C. Yates, David M. Locke, William B. Weisenburgh, II, Phillip Clauda