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    Ultrasonic transducer assembly for an ultrasonic surgical instrument
    1.
    发明授权
    Ultrasonic transducer assembly for an ultrasonic surgical instrument 有权

    公开(公告)号：US12004769B2

    公开(公告)日：2024-06-11

    申请号：US17313063

    申请日：2021-05-06

    Applicant: Covidien LP

    Inventor： Matthew S. Cowley ,  David J. Van Tol

    IPC: A61B17/32 ,  B06B1/06

    CPC classification number: A61B17/320092 ,  A61B2017/320071 ,  B06B1/0618

    Abstract: A ultrasonic transducer assembly of an ultrasonic surgical instrument includes a horn, a piezoelectric stack positioned proximally of the horn and defining a longitudinal opening extending therethrough, a proximal end mass positioned proximally of the piezoelectric stack and defining a longitudinal opening, and a rod secured to the horn and extending proximally from the horn through the longitudinal opening of the piezoelectric stack and the longitudinal opening of the proximal end mass. The rod is secured to the proximal end mass to pre-compress the piezoelectric stack between the horn and the proximal end mass.

    SURGICAL INSTRUMENTS INCORPORATING ULTRASONIC AND ELECTROSURGICAL FUNCTIONALITY
    4.
    发明公开
    SURGICAL INSTRUMENTS INCORPORATING ULTRASONIC AND ELECTROSURGICAL FUNCTIONALITY 审中-公开

    公开(公告)号：US20230200838A1

    公开(公告)日：2023-06-29

    申请号：US18114920

    申请日：2023-02-27

    Applicant: Covidien LP

    Inventor： Thomas W. Meiser ,  David J. Van Tol ,  Daniel A. Friedrichs ,  Rachael L. Kabala

    IPC: A61B17/32 ,  A61B18/14

    CPC classification number: A61B17/320092 ,  A61B18/1442 ,  A61B18/1445 ,  A61B2017/00411

    Abstract: A surgical instrument end effector assembly includes a first jaw member defining an insulative tissue-contacting surface and first and second electrically-conductive tissue-contacting surfaces disposed on either side of the insulative surface. A second jaw member of the end effector assembly includes an ultrasonic blade body positioned to oppose the insulative surface of the first jaw member, and first and second electrically-conductive tissue-contacting surfaces disposed on either side of the ultrasonic blade body and positioned to oppose the first and second electrically-conductive surfaces, respectively, of the first jaw member. The first jaw member is movable relative to the second jaw member between a spaced-apart position and an approximated position to grasp tissue therebetween. The first and second electrically-conductive surfaces of the second jaw member are movable, independent of the first jaw member, relative to the first jaw member and the ultrasonic blade body between a retracted position and an extended position.

    SURGICAL INSTRUMENTS AND METHODS INCORPORATING ULTRASONIC AND ELECTROSURGICAL FUNCTIONALITY
    5.
    发明申请
    SURGICAL INSTRUMENTS AND METHODS INCORPORATING ULTRASONIC AND ELECTROSURGICAL FUNCTIONALITY 有权

    公开(公告)号：US20230129956A1

    公开(公告)日：2023-04-27

    申请号：US17914300

    申请日：2021-03-11

    Applicant: Covidien LP

    Inventor： Michael B. Lyons ,  Thomas E. Drochner ,  David J. Van Tol ,  Devon E. Scott-Drechsel ,  James D. Allen, IV

    IPC: A61B18/14

    Abstract: A surgical instrument includes an ultrasonic transducer supported by a housing and an elongated assembly extending distally therefrom. The elongated assembly includes a jaw and a waveguide coupled to the transducer and defining a blade having upper and lower tissue-contacting surface and first and second lateral surfaces disposed therebetween that are coated with a material. The jaw is pivotable relative to the blade and includes a structural base having a backspan and first and second uprights extending from the backspan. The jaw further includes a jaw liner supported within the structural base and positioned to oppose the upper tissue-contacting surface with the first and second uprights disposed on either side of the blade. In an ultrasonic mode, ultrasonic energy produced by the transducer is transmitted along the waveguide to the blade. In an electrosurgical mode, electrosurgical energy is conducted between the blade and the first and second uprights.

    DEVICES, SYSTEMS, AND METHODS OF MANUFACTURING FLUID-COOLED ULTRASONIC SURGICAL INSTRUMENTS
    6.
    发明申请
    DEVICES, SYSTEMS, AND METHODS OF MANUFACTURING FLUID-COOLED ULTRASONIC SURGICAL INSTRUMENTS 有权

    公开(公告)号：US20220211408A1

    公开(公告)日：2022-07-07

    申请号：US17541951

    申请日：2021-12-03

    Applicant: Covidien LP

    Inventor： Matthew S. Cowley ,  David J. Van Tol ,  Michael B. Lyons

    IPC: A61B17/32

    Abstract: An ultrasonic surgical system includes a waveguide defining first and second longitudinal lumens extending through at least a portion of a length of the waveguide. A distal transverse lumen is defined within the waveguide transversely through at least a portion of the waveguide to intersect and interconnect the first and second longitudinal lumens. First and second proximal transverse lumens extend from first and second proximal transverse apertures within the waveguide transversely through portions of the waveguide to intersect the first and second longitudinal lumens, respectively. Inflow and outflow conduits are fluidly coupled with the first and second proximal transverse apertures, respectively, to enable the inflow of fluid into the first longitudinal lumen and the outflow of fluid from the second longitudinal lumen, respectively.

    Temperature estimation and tissue detection of an ultrasonic dissector from frequency response monitoring
    8.
    发明授权
    Temperature estimation and tissue detection of an ultrasonic dissector from frequency response monitoring 有权

    公开(公告)号：US11076880B2

    公开(公告)日：2021-08-03

    申请号：US13840267

    申请日：2013-03-15

    Applicant: Covidien LP

    Inventor： Anthony B. Ross ,  David J. Van Tol ,  David Price

    IPC: A61B17/32 ,  A61B17/00

    Abstract: An ultrasonic surgical apparatus including a first signal generator outputting a drive signal at a predetermined voltage and frequency, a first oscillating structure receiving the drive signal and oscillating at the frequency of the drive signal, and a bridge circuit, detecting the mechanical motion of the first oscillating structure and outputting a signal representative of the mechanical motion. The apparatus also includes a second oscillating structure integrally formed within a portion of the first oscillating structure, the second oscillating structure outputting an electrical signal, and a microcontroller receiving the signal output by the bridge circuit and output by the second oscillating structure, the microcontroller determining an instantaneous frequency at which the first oscillating structure is oscillating based on the received signal, comparing the electrical signal from the second oscillating structure with a known signal value and determining the temperature of the second oscillating structure based on a the comparison.

    JAW MEMBERS, END EFFECTOR ASSEMBLIES, AND ULTRASONIC SURGICAL INSTRUMENTS INCLUDING THE SAME
    9.
    发明申请
    JAW MEMBERS, END EFFECTOR ASSEMBLIES, AND ULTRASONIC SURGICAL INSTRUMENTS INCLUDING THE SAME 审中-公开

    公开(公告)号：US20200305925A1

    公开(公告)日：2020-10-01

    申请号：US16803043

    申请日：2020-02-27

    Applicant: Covidien LP

    Inventor： Kenneth E. Netzel ,  David J. Van Tol

    IPC: A61B17/32

    Abstract: A jaw member, end effector assembly including the jaw member and an ultrasonic blade, and an ultrasonic surgical instrument including the end effector assembly are provided. The jaw member includes a structural body and a jaw liner. The structural body includes a pair of proximal flanges and an elongated distal portion extending distally from the proximal flanges. The elongated distal portion includes spaced-apart side rails defining an elongated opening therebetween and interconnected at distal ends thereof via a distal cap. The jaw liner is engaged within the elongated opening and includes a base and first and second arms extending from the base. Each arm defines an inwardly-angled tissue contacting surface. The jaw liner defines a jaw liner compliance feature extending longitudinally therealong between the inwardly-angled tissue-contacting surfaces of the first and second arms to facilitate outward deflection of the first and second arms relative to one another.

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