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: 10966747
    Abstract: A surgical control system is disclosed including a controller, a feedback device operably coupled to the controller, and a user interface operably coupled to the controller. The user interface is configured to provide an input to the controller. The controller is configured to provide a control signal to a robotic surgical system to control a function of the robotic surgical system, receive a feedback signal from the robotic surgical system, and provide the feedback signal to the feedback device. The feedback device is configured to provide feedback associated with the robotic surgical system to a user in response to the feedback signal.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 6, 2021
    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
  • Publication number: 20200383722
    Abstract: An electrosurgical device comprises a body, an end effector, a cutting member, and a shaft. The end effector includes a pair of jaws that are operable to deliver RF energy to tissue that is clamped between the jaws. The cutting member is operable to sever tissue that is clamped between the jaws. The shaft extends between the body and the end effector. 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. Some versions include a rotation section that is distal to the articulation section. The rotation section is operable to rotate the end effector relative to the articulation section.
    Type: Application
    Filed: May 15, 2020
    Publication date: December 10, 2020
    Inventors: Barry C. Worrell, David K. Norvell, Charles J. Scheib, Frederick E. Shelton, IV, Geoffrey S. Strobl, Jeffrey S. Swayze, Gregory A. Trees, Jason E. Zerkle, Kevin M. Montgomery
  • Patent number: 10856934
    Abstract: An end effector includes a grasping portion that includes a first jaw member having a first electrode, a second jaw member having a second electrode, a first electrically conductive member located either on the first jaw member or the second jaw member, and a gap setting portion having a second electrically conductive member located at the distal end of either the first jaw member or the second jaw member. The electrically insulative member is sized and configured to engage tissue and the second electrically conductive member sized and configured to define a minimum distance between the first and second electrodes.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: December 8, 2020
    Assignee: ETHICON LLC
    Inventors: Gregory A. Trees, Megan A. Broderick, Frederick E. Shelton, IV, Chad P. Boudreaux, John M. Sarley, David C. Yates
  • Publication number: 20200360045
    Abstract: A surgical apparatus includes a body assembly, a shaft, an acoustic waveguide, an articulation section, an end effector, and a rigidizing member. The shaft extends distally from the body assembly and defines a longitudinal axis. The acoustic waveguide includes a flexible portion. The articulation section is coupled with the shaft. A portion of the articulation section encompasses the flexible portion of the waveguide. The articulation section includes a first member and a second member. The second member is longitudinally translatable relative to the first member. The end effector includes an ultrasonic blade in acoustic communication with the waveguide. The rigidizing member is configured to selectively engage at least a portion of the articulation section to thereby selectively provide rigidity to the articulation section.
    Type: Application
    Filed: June 2, 2020
    Publication date: November 19, 2020
    Inventors: William B. Weisenburgh, II, Barry C. Worrell, Jeffrey D. Messerly, Kristen L. D'Uva, Craig N. Faller, John B. Schulte, Kristen G. Denzinger, Joseph E. Hollo, Jason R. Sullivan, Brian D. Black, Frederick L. Estera, David A. Monroe, Stephen M. Leuck, Tylor C. Muhlenkamp, Gregory A. Trees, Gregory W. Johnson, Foster B. Stulen
  • Patent number: 10779876
    Abstract: A medical instrument is disclosed. The medical instrument includes at least one electrical contact element, a battery, a radio frequency (RF) generation circuit coupled to and operated by the battery and operable to generate an RF drive signal and to provide the RF drive signal to the at least one electrical contact, and a battery discharge circuit coupled to the battery. A processor is coupled to the battery discharge circuit and a memory is coupled to the processor. The memory stores machine executable instructions that when executed cause the processor to monitor activation of the RF generation circuit and disable the RF generation circuit when the RF drive signal is fired a predetermined number of times. The medical instrument may include an activation switch and/or a disposal switch supported by the housing.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: September 22, 2020
    Assignee: Ethicon LLC
    Inventors: Gavin M. Monson, Gregory A. Trees, Gordon J. Leather, David J. Stocks, David A. Snowdon, John Hefin Bowen Evans, David I. Ruddenklau, Alan E. Green, Robin M. Lee, Paul C. Roberts, Paulo Alexandre da Torre Pinheiro, Clive Styler
  • Patent number: 10709495
    Abstract: Methods and devices are provided for retracting a cutting assembly in the event of a failure on a motorized electrosurgical device. A surgical device is provided that includes a handle portion with an elongate shaft extending distally therefrom. The elongate shaft has first and second jaws at a distal end, and the jaws are configured to engage tissue. The surgical device also has a cutting assembly configured to cut tissue engaged between the first and second jaws. A drive shaft extends from the handle of the surgical device through the elongate shaft and is coupled to the cutting assembly for moving the cutting assembly. The surgical device has a motorized gear assembly with at least one motor driven gear that is configured to move the drive shaft. The surgical device also has a bailout assembly that is configured to manually move the drive shaft.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: July 14, 2020
    Assignee: Ethicon LLC
    Inventors: Megan A. Broderick, Catherine A. Corbett, Kevin M. Fiebig, Eric N. Johnson, Richard L. Leimbach, David M. Locke, Gavin M. Monson, Rudolph H. Nobis, Mark D. Overmyer, Brett E. Swensgard, Gregory A. Trees, Aaron C. Voegele
  • Patent number: 10660696
    Abstract: An electrosurgical device comprises a body, an end effector, a cutting member, and a shaft. The end effector includes a pair of jaws that are operable to deliver RF energy to tissue that is clamped between the jaws. The cutting member is operable to sever tissue that is clamped between the jaws. The shaft extends between the body and the end effector. 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. Some versions include a rotation section that is distal to the articulation section. The rotation section is operable to rotate the end effector relative to the articulation section.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: May 26, 2020
    Assignee: Ethicon LLC
    Inventors: Barry C. Worrell, David K. Norvell, Charles J. Scheib, Frederick E. Shelton, IV, Geoffrey S. Strobl, Jeffrey S. Swayze, Gregory A. Trees, Jason E. Zerkle, Kevin M. Montgomery
  • Patent number: 10646270
    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: Grant
    Filed: December 2, 2016
    Date of Patent: May 12, 2020
    Assignee: Ethicon LLC
    Inventors: Barry Worrell, Gregory A. Trees, William Douglas Shaw, Jr., Kevin M. Montgomery
  • Patent number: 10646271
    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: Grant
    Filed: October 4, 2017
    Date of Patent: May 12, 2020
    Assignee: Ethicon LLC
    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
  • Publication number: 20200022724
    Abstract: Various embodiments of surgical robot control systems are disclosed. In one example embodiment, the surgical robot control system comprises a housing. A controller is located within the housing and is coupled to a socket. The socket receives a handheld surgical user interface therein to control a surgical instrument. The surgical instrument is connected to the surgical robot and comprises an end effector and a mechanical interface to manipulate the end effector. The mechanical interface is coupled to the controller. At least one sensor is coupled to the controller and the socket to convert movement of the handheld surgical user interface into electrical signals corresponding to the movement of the surgical instrument. At least one feedback device is coupled to the controller to provide feedback to a user. The feedback is associated with a predetermined function of the surgical instrument.
    Type: Application
    Filed: May 24, 2019
    Publication date: January 23, 2020
    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, Chad P. Boudreaux
  • Patent number: 10537382
    Abstract: Instruments and methods for providing selective surgical instrument trigger lockout are provided herein. In one embodiment, a surgical instrument can include a distal end effector, a proximal actuator portion, a first trigger, a second trigger, and a lock arm. The lock arm can be configured to move between a first position, in which it interferes with actuation of the first trigger, and a second position, in which it permits actuation of the first trigger. Further, actuation of the second trigger can be effective to move the lock arm from the first position to the second position. Actuation of the first trigger can therefore be prevented if the second trigger is not already actuated. Selective trigger lockout can be useful in a variety of instruments, including, for example, surgical instruments that grasp, seal, and transect tissue.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: January 21, 2020
    Assignee: Ethicon LLC
    Inventors: Chad P. Boudreaux, Gregory A. Trees, Geoffrey S. Strobl
  • Publication number: 20200015883
    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: Application
    Filed: July 9, 2019
    Publication date: January 16, 2020
    Inventors: Jonathan T. Batross, Gregory A. Trees, Foster B. Stulen, Randolph C. Stewart, Chad P. Boudreaux
  • Patent number: 10463421
    Abstract: A surgical instrument includes a handle assembly and an end effector. The handle assembly includes a trigger, a push plate coupled to the trigger, wherein actuation of the trigger rotates the push plate, a clamp plate operably coupled to the push plate, wherein actuation of the trigger to a first rotation rotates the clamp plate, and a firing plate operably coupled to the push plate, wherein actuation of the trigger between the first rotation and a second rotation rotates the firing plate. The end effector includes a jaw assembly which includes a first jaw member and a second jaw member, wherein rotation of the clamp plate transitions the jaw assembly between an open configuration and an approximated configuration by moving at least one of the first jaw member and the second jaw member relative to the other one of the first jaw member and the second jaw member.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: November 5, 2019
    Assignee: Ethicon LLC
    Inventors: Chad P. Boudreaux, John M. Sarley, Gregory A. Trees, Catherine A. Corbett
  • Publication number: 20190274749
    Abstract: An ultrasonic device may include an electromechanical ultrasonic system defined by a predetermined resonant frequency and include an ultrasonic transducer coupled to an ultrasonic blade. A method of delivering energy to the device may include applying energy to the blade at a first power level via the transducer coupled to the blade, measuring a complex impedance of the transducer, receiving a complex impedance feedback data point, comparing the complex impedance feedback data point to a reference complex impedance characteristic pattern, and determining that the blade is contacting a vessel based on the comparison. The method may also include disabling the power applied to the transducer and switching to a lower power level. The method may further include generating a warning that the blade is contacting a vessel, such as a light or a sound. An ultrasonic surgical instrument may effect the method.
    Type: Application
    Filed: September 27, 2018
    Publication date: September 12, 2019
    Inventors: John E. Brady, Gregory A. Trees
  • Publication number: 20190274706
    Abstract: Various aspects of a generator, ultrasonic device, and method for estimating and controlling a state of an end effector of an ultrasonic device are disclsoed. 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: September 27, 2018
    Publication date: September 12, 2019
    Inventors: Cameron R. Nott, Foster B. Stulen, Fergus P. Quigley, John E. Brady, Gregory A. Trees, Amrita S. Sawhney, 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 T. Rockman, Gregory D. Bishop, Eric M. Roberson, Stephen M. Leuck, James M. Wilson
  • Publication number: 20190274703
    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: Application
    Filed: May 23, 2019
    Publication date: September 12, 2019
    Inventors: Eric N. Johnson, Gregory A. Trees, Geoffrey S. Strobl
  • Patent number: 10398497
    Abstract: A surgical tool including a lockout mechanism is provided. The surgical tool may include an instrument mounting portion including a shaft assembly coupled to and extending distally from the instrument mounting portion and an end effector including a reciprocatable element coupled to a distal end of the shaft assembly. The surgical tool may further include an energy source configured to deliver energy to the end effector and an actuation mechanism configured to actuate the end effector. The actuation mechanism may be configured to reciprocate the reciprocatable element of the end effector. The lockout mechanism may be operably interfaced with the actuation mechanism to control reciprocating movement of the reciprocatable element.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: September 3, 2019
    Assignee: Ethicon LLC
    Inventors: Jonathan T. Batross, Gregory A. Trees, Foster B. Stulen, Randolph Stewart, Chad P. Boudreaux
  • 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
  • Patent number: D888951
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: June 30, 2020
    Assignee: ETHICON LLC
    Inventors: Ellen M. Renner, Geoffrey S. Strobl, Barry C. Worrell, Gregory A. Trees, Randolph C. Stewart