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    Microwave tissue dissection and coagulation
    61.
    发明授权
    Microwave tissue dissection and coagulation 有权

    公开(公告)号：US10098697B2

    公开(公告)日：2018-10-16

    申请号：US14922811

    申请日：2015-10-26

    Applicant: COVIDIEN LP

    Inventor： Joseph D. Brannan

    IPC: A61B18/18 ,  A61B17/3211 ,  A61B18/00

    Abstract: A surgical instrument is configured to concurrently dissect and coagulate tissue. The surgical instrument includes a handle and a shaft extending distally from the handle. The shaft includes an outer hypotube, a lumen coaxially-disposed within the hypotube and extending beyond a distal end thereof, a coaxial feedline coaxially-disposed within the lumen, and having an inner conductor and an outer conductor disposed coaxially about the inner conductor, and a coolant tube coaxially-disposed between the lumen and the coaxial feedline to form an inflow conduit and an outflow conduit. The instrument further includes a dissecting head assembly coupled to a distal end of the shaft. The dissecting head assembly includes a dielectric core having a substantially planar radiating surface and at least one non-radiating surface, a reflective coating disposed on the at least one non-radiating surface of the dielectric core, and a blade extending from the radiating surface.

    Systems and methods for using a digital controller to adjust one or more operations of a microwave generator
    62.
    发明授权
    Systems and methods for using a digital controller to adjust one or more operations of a microwave generator 有权

    公开(公告)号：US10085801B2

    公开(公告)日：2018-10-02

    申请号：US14805084

    申请日：2015-07-21

    Applicant: COVIDIEN LP

    Inventor： Joseph D. Brannan

    IPC: A61B18/18 ,  A61B19/00 ,  A61B90/98 ,  A61B18/00 ,  A61B17/00

    Abstract: A surgical system is presented including a microwave generator having a resistive identification connector with a plurality of resistive channels, each resistive channel having a plurality of resistive values. The surgical system further includes a microwave applicator having a device identifier, the microwave applicator configured to be connected to the microwave generator via a reusable cable. The surgical system also includes a digital controller configured to be connected to the resistive identification connector of the microwave generator. The device identifier of the microwave applicator is relayed to the digital controller via a resistive channel of the plurality of resistive channels of the resistive identification connector to enable the digital controller to control the microwave applicator by adjusting at least one operation of the microwave generator. The microwave generator further includes at least one digital pass-through line to allow direct communication between the microwave applicator and the digital controller.

    Microwave antenna with cooled handle
    64.
    发明授权
    Microwave antenna with cooled handle 有权

    公开(公告)号：US10022186B2

    公开(公告)日：2018-07-17

    申请号：US15642071

    申请日：2017-07-05

    Applicant: COVIDIEN LP

    Inventor： Richard A. Willyard ,  Joseph D. Brannan

    IPC: A61B18/00 ,  A61B18/18 ,  H01Q9/16 ,  H01Q1/02

    Abstract: According to one aspect of the present disclosure, a microwave antenna assembly is disclosed. The antenna assembly includes a feedline having an inner conductor, an outer conductor and an inner insulator disposed therebetween and a radiating portion including a dipole antenna having a proximal portion and a distal portion. The antenna assembly also comprises a sheath disposed over the feedline and the radiating portion defining a chamber around the feedline and the radiating portion. The chamber is adapted to circulate coolant fluid therethrough. The antenna assembly further includes a connection hub having cable connector coupled to the feedline, an inlet fluid port and an outlet fluid port. The connection hub includes a bypass tube configured to provide for flow of the coolant fluid from the cable connector directly to the outlet fluid port.

    Microwave surface coagulator with retractable blade
    66.
    发明授权
    Microwave surface coagulator with retractable blade 有权

    公开(公告)号：US09861441B2

    公开(公告)日：2018-01-09

    申请号：US14690995

    申请日：2015-04-20

    Applicant: COVIDIEN LP

    Inventor： Joseph D. Brannan ,  Casey M. Ladtkow

    IPC: A61B18/18 ,  A61B17/3211 ,  A61B18/00

    CPC classification number: A61B18/1815 ,  A61B17/3211 ,  A61B2017/32113 ,  A61B2018/00023 ,  A61B2018/1861

    Abstract: An ablation instrument having an ergonomic handle that includes an actuator adapted to selectively extend and retract a blade that is pivotably mounted within an aperture assembly coupled to the housing by a shaft. The shaft extends distally from the handle and includes a coaxial feedline, a wire conduit disposed along a longitudinal axis of the shaft, and a pull wire disposed within the wire conduit and having a proximal and a distal end, wherein a proximal end of the pull wire is operably coupled to the actuator. The aperture assembly is coupled to a distal end of the shaft and includes a reflector having a closed upper portion, and an open lower portion from which the blade may be extended for use. Also disclosed is an ablation system that includes the above-described ablation instrument, a source of ablation energy, and optionally, a source of coolant for cooling the shaft and aperture assembly.

    Step-down coaxial microwave ablation applicators and methods for manufacturing same
    70.
    发明授权
    Step-down coaxial microwave ablation applicators and methods for manufacturing same 有权

    公开(公告)号：US09610122B2

    公开(公告)日：2017-04-04

    申请号：US14228775

    申请日：2014-03-28

    Applicant: Covidien LP

    Inventor： Joseph D. Brannan

    IPC: A61B18/18

    CPC classification number: A61B18/1815 ,  A61B2017/00526 ,  A61B2018/00577 ,  A61B2018/1892 ,  Y10T156/10

    Abstract: Microwave ablation applicators and methods for manufacturing the microwave ablation applicators are disclosed. A microwave ablation applicator includes a feed-line segment, a step-down segment, and a radiator base segment. The feed-line segment includes a first inner conductor, a first dielectric disposed on the first inner conductor, and a first outer conductor disposed on the first dielectric. The step-down segment includes a second inner conductor, a second dielectric disposed on the second inner conductor, and a second outer conductor disposed on the second dielectric. The radiator base segment includes a third inner conductor disposed on the third inner conductor, a third outer conductor disposed on the proximal end of the third dielectric so as to form a feed gap at a distal end of the radiator base segment, a balun dielectric disposed on the third outer conductor, and a balun outer conductor disposed on the balun dielectric.

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