Patents by Inventor Stephen M. Leuck

Stephen M. Leuck 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: 10736649
    Abstract: Disclosed is an ultrasonic surgical instrument comprising a transducer base plate, first and second piezoelectric elements positioned on opposite faces of the transducer base plate. The transducer base plate is coupled to a waveguide. The waveguide is electrically coupled to the first and second piezoelectric elements by a conductive adhesive. The first and second piezoelectric elements are electrically coupled to an ultrasonic signal generator through an electrode. A thermal conductor conducts thermal energy away from the first and second piezoelectric elements. Also disclosed is a method of fabricating such an ultrasonic surgical instrument.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 11, 2020
    Assignee: Ethicon LLC
    Inventors: Jeffrey D. Messerly, Craig T. Davis, Mark E. Tebbe, Brian D. Black, Stephen M. Leuck, Eric M. Roberson, John E. Brady, Amrita S. Sawhney, Shan Wan, Ion V Nicolaescu, James M. Wilson, Amelia A. Pierce
  • Publication number: 20200222142
    Abstract: A surgical instrument includes a body, an ultrasonic transducer assembly, and a transducer lock having a lock member configured to move between unlocked and locked positions. The transducer assembly is rotatably mounted along a longitudinal axis within the body such that the transducer assembly is configured to selectively rotate about the longitudinal axis. With the lock member in the unlocked position, the transducer assembly is configured to be selectively rotated about the longitudinal axis relative to the body. With the lock member in the locked position, the transducer lock is configured to seize the transducer assembly and inhibit rotation relative to the housing for coupling with an acoustic waveguide. The surgical instrument may also include an integral torque wrench for coupling the acoustic waveguide with a predetermined torque and an integral torque indictor for signaling to a user that the acoustic waveguide is coupled with the predetermined torque.
    Type: Application
    Filed: February 3, 2020
    Publication date: July 16, 2020
    Inventors: Eric Roberson, William D. Danaher, Stephen M. Leuck, Fajian Zhang, Cody R. Jackson
  • Publication number: 20200170665
    Abstract: An ultrasonic instrument includes a housing, an ultrasonic transducer support by the housing, and an integrated usage indicator. The housing is configured to removably connect to a shaft assembly. The ultrasonic transducer is configured to be acoustically connected to a waveguide and operated a predetermined number of use cycles. The integrated usage indicator is operatively connected to the housing and includes a used state indicator. The used state indicator is configured to indicate to a clinician in a used state when the ultrasonic transducer has been operated at least the predetermined number of use cycles for limiting usage of the ultrasonic transducer to the predetermined number of use cycles.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 4, 2020
    Inventors: Ryan M. Asher, Brian D. Black, Chad P. Boudreaux, Nathan Cummings, William D. Dannaher, Craig T. Davis, Glenn W. Ellison, Frederick L. Estera, Jacob S. Gee, Geni Giannotti, Timothy S. Holland, Kevin L. Houser, Gregory W. Johnson, Amy M. Krumm, Jason R. Lesko, Stephen M. Leuck, Ion V. Nicolaescu, Candice Otrembiak, Amelia A. Pierce, Eric Roberson, Shan Wan
  • Patent number: 10646300
    Abstract: A surgical instrument includes a body, an ultrasonic transducer assembly, and a transducer lock having a lock member configured to move between unlocked and locked positions. The transducer assembly is rotatably mounted along a longitudinal axis within the body such that the transducer assembly is configured to selectively rotate about the longitudinal axis. With the lock member in the unlocked position, the transducer assembly is configured to be selectively rotated about the longitudinal axis relative to the body. With the lock member in the locked position, the transducer lock is configured to seize the transducer assembly and inhibit rotation relative to the housing for coupling with an acoustic waveguide. The surgical instrument may also include an integral torque wrench for coupling the acoustic waveguide with a predetermined torque and an integral torque indictor for signaling to a user that the acoustic waveguide is coupled with the predetermined torque.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 12, 2020
    Assignee: Ethicon LLC
    Inventors: Eric Roberson, William D. Dannaher, Stephen M. Leuck, Fajian Zhang, Cody Jackson
  • Publication number: 20200138472
    Abstract: An apparatus includes a body, a shaft assembly, an end effector portion, a data storage component, a reader, and a use control. The shaft assembly extends distally from the body and includes a support portion. The end effector portion is configured to selectively couple with the support portion of the shaft assembly. The data storage component is associated with the end effector portion and contains data uniquely associated with the end effector portion. The reader is adapted to read the data from the data storage component. The use control is adapted to enable operation of the end effector portion if the data meets at least one usage parameter.
    Type: Application
    Filed: October 25, 2019
    Publication date: May 7, 2020
    Inventors: Sean P. Conlon, Jeffrey A. Bullock, Eric Roberson, Jeffrey L. Aldridge, Stephen M. Leuck
  • Patent number: 10603129
    Abstract: A surgical instrument includes an instrument body, an ultrasonic transducer assembly, and a slip lock having an arrester. The transducer assembly is rotatably mounted along a longitudinal axis within the body such that the transducer assembly is configured to selectively rotate. The arrester is configured to move relative to the ultrasonic transducer assembly between an engaged position and a disengaged position and has a catch portion and a deflectable portion. The catch portion is configured to seize the transducer assembly and selectively inhibit rotation for rotatably coupling with the acoustic waveguide up to a predetermined torque. The deflectable portion is configured to deflect relative to the transducer assembly upon receiving a torque greater than the predetermined torque. Accordingly, the catch portion releases the transducer assembly to slip relative to the catch portion for limiting coupling of the transducer assembly with the acoustic waveguide to the predetermined torque.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: March 31, 2020
    Assignee: Ethicon LLC
    Inventors: Eric Roberson, Stephen M. Leuck, William D. Dannaher
  • Patent number: 10561436
    Abstract: An ultrasonic instrument includes a housing, an ultrasonic transducer support by the housing, and an integrated usage indicator. The housing is configured to removably connect to a shaft assembly. The ultrasonic transducer is configured to be acoustically connected to a waveguide and operated a predetermined number of use cycles. The integrated usage indicator is operatively connected to the housing and includes a used state indicator. The used state indicator is configured to indicate to a clinician in a used state when the ultrasonic transducer has been operated at least the predetermined number of use cycles for limiting usage of the ultrasonic transducer to the predetermined number of use cycles.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: February 18, 2020
    Assignee: Ethicon LLC
    Inventors: Ryan M. Asher, Brian D. Black, Chad P. Boudreaux, Nathan Cummings, William D. Dannaher, Craig T. Davis, Glenn W. Ellison, Frederick L. Estera, Jacob S. Gee, Geni Giannotti, Timothy S. Holland, Kevin L. Houser, Gregory W. Johnson, Amy M. Krumm, Jason R. Lesko, Stephen M. Leuck, Ion V. Nicolaescu, Candice Otrembiak, Amelia A. Pierce, Eric Roberson, Shan Wan
  • Publication number: 20190350615
    Abstract: An ultrasonic surgical device is disclosed including a surgical tool including a proximal transducer mounting portion defining a surface, a distal end effector end, and a waveguide disposed therebetween, the waveguide extending along a longitudinal axis. The ultrasonic surgical device further includes a transducer is in mechanical communication with the surface of the transducer mounting portion. The transducer is configured to operate in a D31 mode with respect to the longitudinal axis of the waveguide.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventors: Jeffrey D. Messerly, Brian D. Black, William A. Olson, Foster B. Stulen, Frederick Estera, William E. Clem, Jerome R. Morgan, Jeffrey L. Aldridge, Stephen M. Leuck, Kevin L. Houser
  • Publication number: 20190314054
    Abstract: An ultrasonic surgical instrument and method of assembly with a predetermined alignment includes first and second modular assemblies and an electrical lockout. The first modular assembly includes at least a portion of an end effector configured to manipulate a tissue. The second modular assembly includes a transducer power circuit and an activation switch electrically connected to the transducer power circuit. The electrical lockout is electrically connected to the transducer power circuit and configured to inhibit the activation switch from powering the ultrasonic transducer with the first and second modular assemblies misaligned from the predetermined alignment such that the first and second modular assemblies are in a locked-out state. The electrical lockout is further configured to allow the activation switch to power the ultrasonic transducer with the first and second modular assemblies in the predetermined alignment such that the first and second modular assemblies are in an operational state.
    Type: Application
    Filed: April 12, 2018
    Publication date: October 17, 2019
    Inventors: Ryan M. Asher, Brian D. Black, John E. Brady, Alexander R. Cuti, Demetrius N. Harris, Carl J. Draginoff, JR., Ellen Burkart, Geni M. Giannotti, Andrew Kolpitcke, Amy M. Krumm, Matthew T. Kuhn, Stephen M. Leuck, Cameron D. McLain, Ion V. Nicolaescu, Candice Otrembiak, Amrita S. Sawhney, Aaron C. Voegele, Grace E. Waters, Fajian Zhang
  • Publication number: 20190314056
    Abstract: An ultrasonic surgical instrument that includes a handle assembly including at least one user input feature; an ultrasonic transducer supported by the handle assembly, a shaft assembly configured to removably couple with the handle assembly, and a mechanical lockout assembly. The shaft assembly includes a distal end portion. The shaft assembly further includes an end effector extending distally from the distal end portion, and an ultrasonic waveguide configured to be acoustically coupled with the ultrasonic transducer. The mechanical lockout assembly is configured to move between at least an unlocked configuration and a locked configuration. In the locked configuration, the handle assembly and the shaft assembly are only partially coupled together physically preventing the user from activating the instrument using the user input feature.
    Type: Application
    Filed: April 12, 2018
    Publication date: October 17, 2019
    Inventors: John E. Brady, Alexander R. Cuti, Kevin M. Fiebig, Ellen Burkart, Demetrius N. Harris, Andrew Kolpitcke, Amy M. Krumm, Matthew T. Kuhn, Jason R. Lesko, Stephen M. Leuck, Guion Y. Lucas, Andrew S. Meyers, Candice Otrembiak, Grace E. Waters
  • Publication number: 20190314055
    Abstract: An ultrasonic surgical instrument includes a first modular assembly including at least one operator input feature an ultrasonic transducer supported by the first modular assembly, and a second modular assembly configured to be removably coupled with the first modular assembly. The second modular assembly includes at least a portion of an end effector extending distally from a distal end portion of the second modular assembly. The instrument includes a mechanical lockout assembly configured to switch between at least an unlocked configuration and a locked configuration. In the locked configuration, the first modular assembly and the second modular assembly are partially coupled together such that the operator is physically prevented from activating the instrument using the operator input feature. In the unlocked configuration, the first modular assembly and the second modular assembly are completely coupled together and the operator is able to activate the instrument using the operator input feature.
    Type: Application
    Filed: April 12, 2018
    Publication date: October 17, 2019
    Inventors: John E. Brady, Alexander R. Cuti, Kevin M. Fiebig, Ellen Burkart, Demetrius N. Harris, Andrew Kolpitcke, Amy M. Krumm, Matthew T. Kuhn, Jason R. Lesko, Stephen M. Leuck, Guion Y. Lucas, Cameron D. McLain, Andrew S. Meyers, Candice Otrembiak, Grace E. Waters
  • Patent number: 10420580
    Abstract: Disclosed is an ultrasonic medical device that may include a surgical tool having a proximal end, an end effector, and a waveguide between them, a first transducer in mechanical communication with a first face of the surgical tool, and a second transducer in mechanical communication with an opposing face of the surgical tool, opposite the first transducer. The first transducer and the second transducer are configured to operate in a D31 mode with respect to the waveguide of the surgical tool. Another aspect comprises a method of fabricating the ultrasonic medical device, in which the surgical tool is machined from a portion of a flat metal stock so that the surgical tool has a longitudinal axis oriented at an angle with respect to a grain direction of the flat metal stock thereby optimizing an operational characteristic of the surgical tool.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: September 24, 2019
    Assignee: Ethicon LLC
    Inventors: Jeffrey D. Messerly, Brian D. Black, William A. Olson, Foster B. Stulen, Frederick Estera, William E. Clem, Jerome R. Morgan, Jeffrey L. Aldridge, Stephen M. Leuck, Kevin L. Houser
  • 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: 20190274717
    Abstract: A generator, ultrasonic device, and method for controlling a temperature of an ultrasonic blade are disclosed. A control circuit coupled to a memory determines an actual resonant frequency of an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade by an ultrasonic waveguide. The actual resonant frequency is correlated to an actual temperature of the ultrasonic blade. The control circuit retrieves from the memory a reference resonant frequency of the ultrasonic electromechanical system. The reference resonant frequency is correlated to a reference temperature of the ultrasonic blade. The control circuit then infers the temperature of the ultrasonic blade based on the difference between the actual resonant frequency and the reference resonant frequency.
    Type: Application
    Filed: September 27, 2018
    Publication date: September 12, 2019
    Inventors: Cameron R. Nott, Fergus P. Quigley, Amrita S. Sawhney, Stephen M. Leuck, Brian D. Black, Eric M. Roberson, Kristen G. Denzinger, Patrick J. Scoggins, Craig N. Faller, Madeleine C. Jayme, Jacob S. Gee
  • Publication number: 20190274705
    Abstract: A method of controlling the temperature of an ultrasonic blade includes applying a power level to an ultrasonic transducer to achieve a desired temperature at an ultrasonic blade coupled to the transducer via an ultrasonic waveguide, inferring a temperature of the blade based on a voltage Vg(t) signal and a current Ig(t) signal applied to the transducer, comparing the inferred temperature of the blade to a predetermined temperature; and adjusting the power level to the transducer based on the comparison. In some aspects, the method includes measuring a phase angle ? between the voltage Vg(t) and the current Ig(t) and inferring the temperature of the blade from the phase angle ?. In some aspects, the method includes measuring an impedance Zg(t) equal to a ratio of the voltage Vg(t) to the current Ig(t) and inferring the temperature of the blade from the impedance Zg(t).
    Type: Application
    Filed: September 27, 2018
    Publication date: September 12, 2019
    Inventors: Amrita S. Sawhney, Stephen M. Leuck, Brian D. Black, Eric M. Roberson
  • Publication number: 20190274707
    Abstract: An ultrasonic device may include an electromechanical ultrasonic system having a resonant frequency, the system including a transducer coupled to an ultrasonic blade. A method of driving the blade may include determining a tissue type contacting the blade, setting current delivered to the transducer to achieve a desired blade temperature, and setting a desired period during which the desired temperature is applied to the tissue. The tissue type may be determined by measuring an impedance of the transducer, comparing an impedance measurement data point to a reference data point, and classifying the impedance measurement data point based on a result of the comparison.
    Type: Application
    Filed: September 27, 2018
    Publication date: September 12, 2019
    Inventors: Amrita S. Sawhney, Eric M. Roberson, Stephen M. Leuck, Brian D. Black
  • Publication number: 20190216493
    Abstract: An apparatus comprises a body assembly, a shaft, an acoustic waveguide, an articulation section, an end effector, and an articulation drive assembly. The shaft extends distally from the body assembly and defines a longitudinal axis. The acoustic waveguide comprises 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 comprises a plurality of body portions aligned along the longitudinal axis and a flexible locking member. The flexible locking member is operable to secure the body portions in relation to each other and in relation to the shaft. The end effector comprises an ultrasonic blade in acoustic communication with the waveguide. The articulation drive assembly is operable to drive articulation of the articulation section to thereby deflect the end effector from the longitudinal axis.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 18, 2019
    Inventors: Barry C. Worrell, Benjamin J. Danziger, Benjamin D. Dickerson, Brian D. Black, Cara L. Shapiro, Charles J. Scheib, Craig N. Faller, Daniel J. Mumaw, David J. Cagle, David T. Martin, David A. Monroe, Disha V. Labhasetwar, Foster B. Stulen, Frederick L. Estera, Geoffrey S. Strobl, Gregory W. Johnson, Jacob S. Gee, Jason R. Sullivan, Jeffrey D. Messerly, Jeffrey S. Swayze, John A. Hibner, John B. Schulte, Joseph E. Hollo, Kristen G. Denzinger, Kristen L. D'Uva, Matthew C. Miller, Michael R. Lamping, Richard W. Timm, Rudolph H. Nobis, Ryan M. Asher, Stephen M. Leuck, Tylor C. Muhlenkamp, William B. Weisenburgh, II, William A. Olson
  • 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
  • Publication number: 20190201036
    Abstract: A generator, ultrasonic device, and method of determining a temperature of an ultrasonic blade are disclosed. A control circuit coupled to a memory determines an actual resonant frequency of an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade by an ultrasonic waveguide. The actual resonant frequency is correlated to an actual temperature of the ultrasonic blade. The control circuit retrieves from the memory a reference resonant frequency of the ultrasonic electromechanical system. The reference resonant frequency is correlated to a reference temperature of the ultrasonic blade. The control circuit then infers the temperature of the ultrasonic blade based on the difference between the actual resonant frequency and the reference resonant frequency.
    Type: Application
    Filed: August 28, 2018
    Publication date: July 4, 2019
    Inventors: Cameron R. Nott, Fergus P. Quigley, Amrita Singh Sawhney, Stephen M. Leuck, Brian D. Black, Eric M. Roberson, Patrick J. Scoggins, Craig N. Faller, Madeleine C. Jayme, Jacob S. Gee, 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