Patents by Inventor Frederick L. Estera

Frederick L. Estera 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: 11058472
    Abstract: A surgical instrument includes an ultrasonic transducer, a distally extending shaft, and an end effector at a distal end of the shaft. The end effector includes an ultrasonic blade and a clamp arm. The ultrasonic blade includes an upper treatment side, a lower treatment side, a first lateral side, and a second lateral side. The clamp arm is movable relative to the ultrasonic blade for clamping tissue therebetween, and it provides an RF electrode operable to seal tissue with RF energy. The RF electrode includes first and second electrode side portions. The first electrode side portion is spaced laterally outward from the first lateral side of the ultrasonic blade by a first lateral gap distance. The second electrode side portion spaced from the first electrode side portion and is spaced laterally outward from the second lateral side of the ultrasonic blade by a second lateral gap distance.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: July 13, 2021
    Assignee: Cilag GmbH International
    Inventors: Jason R. Lesko, Catherine A. Corbett, Craig T. Davis, Frederick L. Estera
  • Patent number: 11051866
    Abstract: A surgical instrument includes an ultrasonic transducer, a shaft extending distally along a shaft axis, a waveguide acoustically coupled with the ultrasonic transducer and extending distally through the shaft, and an end effector at a distal end of the shaft. The end effector includes an ultrasonic blade acoustically coupled with the waveguide. A nodal support element is arranged within a distal portion of the shaft and encircles the waveguide at a distal-most acoustic node of the waveguide. The nodal support element includes a support portion aligned with the distal-most acoustic node, and a sealing portion extending axially from the support portion. The support portion engages an inner surface of the shaft and is configured to support the waveguide in coaxial alignment with the shaft axis. The sealing portion sealingly engages the inner surface of the shaft and is configured to prevent proximal ingress of fluid through the shaft.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: July 6, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick L. Estera, Michael A. Keenan, Craig T. Davis, William B. Weisenburgh, II, Jason R. Lesko
  • 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: 20210196306
    Abstract: An end-effector and a surgical instrument including the end-effector are disclosed. The end-effector includes a clamp arm and an ultrasonic blade configured to acoustically couple to an ultrasonic transducer and to electrically couple to a pole of an electrical generator. The clamp arm incudes a clamp jaw, a cantilever electrode, and a clamp arm. The cantilever electrode is biased in a direction toward the clamp jaw and the clamp arm includes a retainer to oppose a biasing force and maintain the cantilever electrode in a substantially flat configuration relative to the ultrasonic blade. A skirt may be disposed around the clamp jaw. The clamp arm pad may include multiple support elements arranged in multiple rows to support the cantilever electrode.
    Type: Application
    Filed: May 29, 2020
    Publication date: July 1, 2021
    Inventors: Frederick L. Estera, Bruce Brunson, JR., Guion Y. Lucas, Demetrius N. Harris, Frederick E. Shelton, VI
  • Patent number: 11033316
    Abstract: A surgical instrument includes an ultrasonic transducer, a shaft defining a longitudinal axis, and an end effector at a distal end of the shaft. The end effector includes an ultrasonic blade driven by the ultrasonic transducer to treat tissue with ultrasonic energy. A tissue treatment portion of the ultrasonic blade includes a linear blade region extending parallel to the longitudinal axis, a curved blade region extending distally from the linear blade region along a curved path that deflects laterally from the longitudinal axis, an upper treatment side, a lower treatment side, a first lateral side having a first sweeping side surface, and a second lateral side having a second sweeping side surface. The sweeping side surfaces define respective first and second side edges of a transverse cross-section of the tissue treatment portion, and are configured such that the first and second side edges are parallel to one another.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: June 15, 2021
    Assignee: Cilag GmbH International
    Inventor: Frederick L. Estera
  • Publication number: 20210128191
    Abstract: Ultrasonic surgical instruments having angularly and/or linearly off-set blades are described. The angularly and/or linearly off-set blades may facilitate increased surgical site access, visibility, and manipulability.
    Type: Application
    Filed: November 19, 2020
    Publication date: May 6, 2021
    Inventors: Jeffrey D. Messerly, Cory G. Kimball, William E. Clem, Gregory W. Johnson, Frederick L. Estera, William B. Weisenburgh, II, Foster B. Stulen
  • Patent number: 10932803
    Abstract: A surgical apparatus comprises a body, a shaft assembly, a rotation input assembly, and an end effector. The shaft assembly defines a longitudinal axis and a first fluid passageway. The rotation input assembly is operable to rotate the shaft assembly about the longitudinal axis. The rotation input assembly defines a second fluid passageway. The second fluid passageway is in fluid communication with the first fluid passageway. The end effector is located at a distal end of the shaft assembly. The end effector comprises an ultrasonic blade. The end effector is in fluid communication with the first fluid passageway such that the end effector is configured to receive fluid communicated through the first and second fluid passageways.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: March 2, 2021
    Assignee: Ethicon LLC
    Inventors: Frederick L. Estera, Christopher Coyne, Joël Fontannaz, Lukas Glutz, Amir Feriani, Emmanuel Gremion, Mathew D. Clopp
  • Patent number: 10856897
    Abstract: A surgical apparatus comprises a body, a user input feature, a shaft assembly, an end effector, and a blade cooling system. The end effector comprises a clamp arm and an ultrasonic blade that may be coupled with an ultrasonic transducer. The clamp arm is configured to pivot toward and away from the ultrasonic blade. The cooling system is operable to deliver liquid coolant to the ultrasonic blade to thereby cool the ultrasonic blade. The user input feature is operable to both actuate the clamp arm and actuate the cooling system.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 8, 2020
    Assignee: Ethicon LLC
    Inventors: Michael J. Stokes, Ryan M. Asher, Charles J. Scheib, Rudolph H. Nobis, Frederick L. Estera, Benjamin D. Dickerson, Carl J. Draginoff, Jr., Jeffrey D. Messerly, David J. Cagle, Jacob S. Gee, William B. Weisenburgh, II, Omar E. Rios Perez, Chester O. Baxter, III, Benjamin M. Boyd, Rafael J. Ruiz Ortiz, Joël Fontannaz, Lukas Glutz, Amir Feriani, Emmanuel Gremion
  • 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: 10813662
    Abstract: An ultrasonic surgical instrument includes a body, a shaft, an ultrasonic transducer, a waveguide, and an end effector coupled to a distal end of the shaft. A rotation knob is rotatably coupled to the body and is configured to rotate the shaft, the waveguide, and the end effector together relative to the body. A torque transfer structure is positioned radially outwardly of and in direct contact with the waveguide at an acoustic node thereof. The torque transfer structure is rotationally fixed relative to the waveguide and is configured to rotationally couple the waveguide with the shaft and the rotation knob. The waveguide includes a first axial constraining feature defining a distally facing surface, and the torque transfer structure includes a second axial constraining feature defining a proximally facing surface configured to abut the distally facing surface to constrain the waveguide axially relative to the torque transfer structure and the body.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: October 27, 2020
    Assignee: Ethicon LLC
    Inventors: Rafael J. Ruiz Ortiz, Craig T. Davis, Stephen M. Leuck, Benjamin M. Boyd, Joseph Dennis, Joseph E. Hollo, Nathan Cummings, Ion V. Nicolaescu, Tony C. Siebel, Joseph Isosaki, Frederick L. Estera, John E. Brady, Bryce L. Heitman, Cory G. Kimball
  • Publication number: 20200330121
    Abstract: A surgical apparatus comprises a body, a user input feature, a shaft assembly, an end effector, and a blade cooling system. The end effector comprises a clamp arm and an ultrasonic blade that may be coupled with an ultrasonic transducer. The clamp arm is configured to pivot toward and away from the ultrasonic blade. The cooling system is operable to deliver liquid coolant to the ultrasonic blade to thereby cool the ultrasonic blade. The user input feature is operable to both actuate the clamp arm and actuate the cooling system.
    Type: Application
    Filed: June 2, 2020
    Publication date: October 22, 2020
    Inventors: Michael J. Stokes, Scott R. Bingham, Ryan M. Asher, Charles J. Scheib, Rudolph H. Nobis, Frederick L. Estera, Benjamin D. Dickerson, Carl J. Draginoff, Jeffrey D. Messerly, David J. Cagle, Jacob S. Gee, William B. Weisenburgh, II, Omar E. Rios Perez, Chester O. Baxter, III, Karalyn R. Tellio, Benjamin M. Boyd, Rafael J. Ruiz Ortiz, Joël Fontannaz, Lukas S. Glutz, Amir Feriani, Emmanuel Gremion
  • 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
  • Publication number: 20200078043
    Abstract: An ultrasonic instrument includes a body, a shaft assembly, and an end effector. The shaft assembly extends distally from the body. The shaft assembly includes an acoustic waveguide configured to acoustically couple with an ultrasonic transducer. The end effector includes an ultrasonic blade, a clamp arm and a clamp pad. The ultrasonic blade is in acoustic communication with the waveguide. The clamp arm is pivotally coupled with the shaft assembly. The clamp pad is configured to removably couple with the clamp arm while the clamp arm is pivotally coupled to the shaft assembly.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 12, 2020
    Inventors: Benjamin D. Dickerson, Steven P. Smolik, David J. Cagle, Jeffrey D. Messerly, Frederick L. Estera, Paul F. Riestenberg, Charles J. Scheib, Tylor C. Muhlenkamp, Kristen G. Denzinger, Ryan M. Asher
  • Publication number: 20200069325
    Abstract: An instrument includes an ultrasonic blade, a first fluid port, an irrigation member, a second fluid port, and a fluid communication assembly. The ultrasonic blade defines a distal opening. The ultrasonic blade is operable in a first mode to emulsify tissue that is distally positioned relative to the ultrasonic blade. The ultrasonic blade is further operable in a second mode to transect and seal tissue that is transversely positioned relative to the ultrasonic blade. The first fluid port is in communication with the distal opening of the ultrasonic blade. The irrigation member is positioned adjacent to the distal end of the ultrasonic blade. The second fluid port is in communication with the irrigation member. The fluid communication assembly is configured to couple the first fluid port with a fluid source, couple the first fluid port with a suction source, and couple the second fluid port with the fluid source.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 5, 2020
    Inventors: Foster B. Stulen, John A. Weed, III, Joseph Isosaki, Frederick L. Estera, Ryan M. Asher, Brian D. Black
  • 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
  • Patent number: 10507033
    Abstract: An ultrasonic instrument includes a body, a shaft assembly, and an end effector. The shaft assembly extends distally from the body. The shaft assembly includes an acoustic waveguide configured to acoustically couple with an ultrasonic transducer. The end effector includes an ultrasonic blade, a clamp arm and a clamp pad. The ultrasonic blade is in acoustic communication with the waveguide. The clamp arm is pivotally coupled with the shaft assembly. The clamp pad is configured to removably couple with the clamp arm while the clamp arm is pivotally coupled to the shaft assembly.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: December 17, 2019
    Assignee: Ethicon LLC
    Inventors: Benjamin D. Dickerson, Steven P. Smolik, David J. Cagle, Jeffrey D. Messerly, Frederick L. Estera, Paul F. Riestenberg, Charles J. Scheib, Tylor C. Muhlenkamp, Kristen G. Denzinger, Ryan M. Asher
  • Patent number: 10478211
    Abstract: An instrument includes an ultrasonic blade, a first fluid port, an irrigation member, a second fluid port, and a fluid communication assembly. The ultrasonic blade defines a distal opening. The ultrasonic blade is operable in a first mode to emulsify tissue that is distally positioned relative to the ultrasonic blade. The ultrasonic blade is further operable in a second mode to transect and seal tissue that is transversely positioned relative to the ultrasonic blade. The first fluid port is in communication with the distal opening of the ultrasonic blade. The irrigation member is positioned adjacent to the distal end of the ultrasonic blade. The second fluid port is in communication with the irrigation member. The fluid communication assembly is configured to couple the first fluid port with a fluid source, couple the first fluid port with a suction source, and couple the second fluid port with the fluid source.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 19, 2019
    Assignee: Ethicon LLC
    Inventors: Foster B. Stulen, John A. Weed, III, Joseph Isosaki, Frederick L. Estera, Ryan M. Asher, 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: 20190167295
    Abstract: A surgical apparatus comprises a body, a shaft assembly, a rotation input assembly, and an end effector. The shaft assembly defines a longitudinal axis and a first fluid passageway. The rotation input assembly is operable to rotate the shaft assembly about the longitudinal axis. The rotation input assembly defines a second fluid passageway. The second fluid passageway is in fluid communication with the first fluid passageway. The end effector is located at a distal end of the shaft assembly. The end effector comprises an ultrasonic blade. The end effector is in fluid communication with the first fluid passageway such that the end effector is configured to receive fluid communicated through the first and second fluid passageways.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 6, 2019
    Inventors: Frederick L. Estera, Christopher Coyne, Joël Fontannaz, Lukas Glutz, Amir Feriani, Emmanuel Gremion, Mathew D. Clopp
  • Patent number: 10258363
    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: Grant
    Filed: April 16, 2015
    Date of Patent: April 16, 2019
    Assignee: Ethicon LLC
    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. Pirozzi, 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