Patents by Inventor Ion V. Nicolaescu

Ion V. Nicolaescu 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
  • Patent number: 10709470
    Abstract: An ultrasonic surgical instrument includes a body, an ultrasonic transducer rotatably supported within the body and having a threaded distal end, a shaft extending from the body, a waveguide extending through the shaft and having a threaded proximal end configured to threadedly engage the threaded distal end to define a threaded coupling, and an end effector at a distal end of the shaft. An integrated torque wrench mechanism is arranged within the body and includes a first torque wrench member rotationally coupled with a proximal end of the transducer, and a second torque wrench member arranged proximally of the first torque wrench member. The torque wrench members are configured to selectively couple together and frictionally engage one another to facilitate application of a predetermined maximum torque to the threaded coupling. The torque wrench members are configured to automatically decouple upon application of the predetermined maximum torque to the threaded coupling.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: July 14, 2020
    Assignee: Ethicon LLC
    Inventors: Mark E. Tebbe, Ion V. Nicolaescu, Tony C. Siebel, Chad P. Boudreaux
  • 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: 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: 10507035
    Abstract: An instrument includes an ultrasonic blade, a first fluid port in communication with the distal opening of the ultrasonic blade, a clamp arm, an irrigation member positioned adjacent to the distal end of the ultrasonic blade, and a second fluid port in communication with the irrigation member. 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 clamp arm is pivotable toward and away from the ultrasonic blade.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: December 17, 2019
    Assignee: Ethicon LLC
    Inventors: Chad P. Boudreaux, Jeffrey D. Messerly, Ion V. Nicolaescu, Foster B. Stulen, Charles J. Scheib, Mary E. Mootoo, Matthew C. Miller
  • 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: 20190201041
    Abstract: Various systems and methods for controlling the activation of energy surgical instruments are disclosed. An advance energy surgical instrument, such an electrosurgical instrument or an ultrasonic surgical instrument, can include one or more sensor assemblies for detecting the state or position of the end effector, arm, or other components of the surgical instrument. A control circuit can be configured to control the activation of the surgical instrument according to the state or position of the components of the surgical instrument.
    Type: Application
    Filed: August 28, 2018
    Publication date: July 4, 2019
    Inventors: Cory G. Kimball, Ion V. Nicolaescu, Andrew W. Carroll, David C. Yates, Daniel W. Price, William B. Weisenburgh, II, Jeffrey L. Aldridge, Monica Louise Zeckel Rivard, Heather N. Doak, Mary E. Mootoo, Eric M. Roberson
  • Publication number: 20190059928
    Abstract: An apparatus includes a body, a shaft assembly, an end effector, a first acoustic sensor, and a processor. The shaft assembly extends distally from the body. The end effector is located at the distal end of the shaft assembly. The end effector is operable to apply energy to tissue and thereby change a state of the tissue. The first acoustic sensor is configured to pick up sound emitted by tissue. The processor is in communication with the first acoustic sensor. The processor is configured to provide an automated response in response to a signal from the first acoustic sensor indicating a change in the state of the tissue.
    Type: Application
    Filed: August 31, 2017
    Publication date: February 28, 2019
    Inventors: Ion V. Nicolaescu, David C. Yates
  • Publication number: 20190029707
    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: July 31, 2017
    Publication date: January 31, 2019
    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, Foster B. Stulen, Shan Wan
  • Publication number: 20190008546
    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: Application
    Filed: July 10, 2017
    Publication date: January 10, 2019
    Inventors: Rafael J. Ruiz Ortiz, Craig T. Davis, Stephen M. Leuck, Benjamin M. Boyd, Muluken B. Terefe, Joseph Dennis, Joseph E. Hollo, Nathan Cummings, Ion V. Nicolaescu, Mark E. Tebbe, Tony C. Siebel, Joseph Isosaki, Frederick L. Estera, Ellen Burkart, John E. Brady, Bryce L. Heitman, Cory G. Kimball
  • Publication number: 20190008547
    Abstract: An ultrasonic surgical instrument includes a body, an ultrasonic transducer rotatably supported within the body and having a threaded distal end, a shaft extending from the body, a waveguide extending through the shaft and having a threaded proximal end configured to threadedly engage the threaded distal end to define a threaded coupling, and an end effector at a distal end of the shaft. An integrated torque wrench mechanism is arranged within the body and includes a first torque wrench member rotationally coupled with a proximal end of the transducer, and a second torque wrench member arranged proximally of the first torque wrench member. The torque wrench members are configured to selectively couple together and frictionally engage one another to facilitate application of a predetermined maximum torque to the threaded coupling. The torque wrench members are configured to automatically decouple upon application of the predetermined maximum torque to the threaded coupling.
    Type: Application
    Filed: July 10, 2017
    Publication date: January 10, 2019
    Inventors: Mark E. Tebbe, Ion V. Nicolaescu, Tony C. Siebel, Chad P. Boudreaux
  • 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
  • Publication number: 20180132888
    Abstract: A surgical instrument, has an end effector that includes an ultrasonic blade, and a clamp arm that moves relative to the ultrasonic blade from an opened position toward an intermediate position and a closed position. The clamp arm is offset from the ultrasonic blade to define a predetermined gap in the intermediate position between the opened position and the closed position. A clamp arm actuator connects to the clamp arm and moves from an opened configuration to a closed configuration to direct the clamp arm from the opened position toward the intermediate position and the closed position. A spacer connects with the clamp arm to inhibit movement of the clamp arm from the intermediate position toward the closed position for maintaining the predetermined gap between the clamp arm and the ultrasonic blade.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 17, 2018
    Inventors: Ryan M. Asher, Brian D. Black, John E. Brady, Joseph Dennis, Geni M. Giannotti, Bryce L. Heitman, Timothy S. Holland, Joseph E. Hollo, Andrew Kolpitcke, Amy M. Krumm, Jason R. Lesko, Matthew C. Miller, David A. Monroe, Ion V. Nicolaescu, Rafael J. Ruiz Ortiz, Matthew S. Schneider, Richard C. Smith, Shawn C. Snyder, Sarah A. Worthington, Monica L. Zeckel, Fajian Zhang
  • Publication number: 20180055532
    Abstract: Various ultrasonic surgical instruments are disclosed. At least one disclosed surgical instrument includes a waveguide including a blade and a transducer base plate. The transducer base plate coupled to the waveguide to define a joint at an interface between the waveguide and the transducer base plate. The transducer base plate including first and second sides defining corresponding first and second flat faces configured to receive first and second piezoelectric elements. The first and second piezoelectric elements are configured to operate in a D31 mode.
    Type: Application
    Filed: August 17, 2017
    Publication date: March 1, 2018
    Inventors: Jeffrey D. Messerly, Brian D. Black, Frederick Estera, Jason R. Lesko, Benjamin M. Boyd, Kevin M. Fiebig, Chad P. Boudreaux, Grace E. Waters, Kristen G. Denzinger, Amy M. Krumm, Amelia Pierce, Chad E. Eckert, Joseph D. Dennis, Ion V. Nicolaescu, Monica L. Zeckel, William A. Olson, Patrick J. Scoggins, Larry A. Pummill, JR., John S. Frazier, William A. Crawford, Brian J. Hemmelgarn, Eric Stout, Benjamin D. Dickerson
  • Publication number: 20180056095
    Abstract: Various ultrasonic instruments are disclosed. The ultrasonic instruments include an ultrasonic waveguide acoustically coupled to an ultrasonic transducer. Several techniques for acoustically coupling the ultrasonic transducer to the ultrasonic waveguide are disclosed.
    Type: Application
    Filed: August 17, 2017
    Publication date: March 1, 2018
    Inventors: Jeffrey D. Messerly, Benjamin D. Dickerson, Rafael J. Ruiz Ortiz, Ryan M. Asher, Joseph D. Dennis, Brian D. Black, Craig T. Davis, Mark E. Tebbe, Ion V. Nicolaescu, Frederick Estera, William A. Olson, Amelia Pierce, James Wilson, William D. Dannaher, Fajian Zhang, Foster B. Stulen
  • Publication number: 20180055531
    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: Application
    Filed: August 17, 2017
    Publication date: March 1, 2018
    Inventors: Jeffrey D. Messerly, Craig T. Davis, Mark E. Tebbe, Brian D. Black, Stephen M. Leuck, Eric M. Roberson, John Brady, Amrita S. Sawhney, Shan Wan, Ion V. Nicolaescu, James Wilson, Amelia Pierce
  • Publication number: 20170105752
    Abstract: An instrument includes an ultrasonic blade, a first fluid port in communication with the distal opening of the ultrasonic blade, a clamp arm, an irrigation member positioned adjacent to the distal end of the ultrasonic blade, and a second fluid port in communication with the irrigation member. 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 clamp arm is pivotable toward and away from the ultrasonic blade.
    Type: Application
    Filed: October 4, 2016
    Publication date: April 20, 2017
    Inventors: Chad P. Boudreaux, Jeffrey D. Messerly, Ion V. Nicolaescu, Foster B. Stulen, Charles J. Scheib, Mary E. Mootoo, Matthew C. Miller
  • Patent number: 9038456
    Abstract: A gravity gradiometer having at least three differential accelerometers with a low response to linear accelerations and at least six angular accelerometers that give it the capability of measuring angular rates by integrating the angular accelerations. Both types of accelerometers are based on a compliant mechanism with very low and adjustable stiffness that is achieved by using flexures under compressive load that contribute a negative stiffness to the total elastic response of the mechanism. Both types of accelerometers are operated in a servo-compensation feedback mode so that at no time is the mechanism far from its equilibrium position.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: May 26, 2015
    Assignee: SRC, Inc.
    Inventors: Marcello M. DiStasio, Ion V. Nicolaescu
  • Publication number: 20140000362
    Abstract: A gravity gradiometer having at least three differential accelerometers with a low response to linear accelerations and at least six angular accelerometers that give it the capability of measuring angular rates by integrating the angular accelerations. Both types of accelerometers are based on a compliant mechanism with very low and adjustable stiffness that is achieved by using flexures under compressive load that contribute a negative stiffness to the total elastic response of the mechanism. Both types of accelerometers are operated in a servo-compensation feedback mode so that at no time is the mechanism far from its equilibrium position.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 2, 2014
    Applicant: SRC, INC.
    Inventors: Marcello M. DiStasio, Ion V. Nicolaescu
  • Patent number: 8184359
    Abstract: A laser projector display module for a handheld device may include an electronics module, a miniaturized light source module electrically connected with the electronics module, a scanner module electrically connected with the electronics module, and an optical assembly configured to direct light from the light source onto the scanner module. The scanner module and the light source module may abut the electronics module.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: May 22, 2012
    Assignee: Motorola Mobility, Inc.
    Inventors: William F. Hoffman, Tomasz L. Klosowiak, Lawrence E. Lach, Junhua Liu, Ion V. Nicolaescu, Min-Xian M. Zhang