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    Adjustable tuning of a dielectrically loaded loop antenna
    1.
    发明授权
    Adjustable tuning of a dielectrically loaded loop antenna 有权
    介质加载的环形天线的可调节调谐

    公开(公告)号：US09549778B2

    公开(公告)日：2017-01-24

    申请号：US14281344

    申请日：2014-05-19

    Applicant: COVIDIEN LP

    Inventor： Brian Shiu ,  Kenlyn S. Bonn ,  Mani N. Prakash ,  Tao Nguyen

    IPC: A61B18/18 ,  H01Q9/04 ,  H01Q9/16

    CPC classification number: A61B18/1815 ,  A61B2018/1838 ,  A61B2018/1861 ,  H01Q1/44 ,  H01Q9/04 ,  H01Q9/0485 ,  H01Q9/16

    Abstract: A microwave antenna assembly is disclosed. The antenna assembly includes an elongated member defining a longitudinal axis and having proximal and distal ends. The antenna assembly also includes an outer conductor and an inner conductor each disposed within the elongated member and extending along the longitudinal axis. A portion of the inner conductor is deployable relative to the outer conductor such that the antenna assembly may transition from a first configuration to a second configuration. The antenna assembly also includes an expandable sheath at least partially disposed about a distal portion of the inner conductor and defining at one or more lumens configured to couple to a supply of dielectric material used to regulate the expansion of the expandable sheath.

    Abstract translation: 公开了一种微波天线组件。 天线组件包括限定纵向轴线并具有近端和远端的细长构件。 天线组件还包括外部导体和内部导体，每个外部导体和内部导体设置在细长构件内并且沿着纵向轴线延伸。 内部导体的一部分可相对于外部导体展开，使得天线组件可以从第一配置转变到第二配置。 天线组件还包括至少部分地设置在内部导体的远端部分周围的可扩张护套，并且限定在一个或多个内腔，其被配置为耦合到用于调节可扩张护套的膨胀的电介质材料供应。

    Microwave antenna guide assembly
    4.
    发明授权
    Microwave antenna guide assembly 有权

    公开(公告)号：US10143520B2

    公开(公告)日：2018-12-04

    申请号：US14924038

    申请日：2015-10-27

    Applicant: COVIDIEN LP

    Inventor： Mani N. Prakash ,  Francesca Rossetto ,  Steven Kim ,  Brian Shiu ,  Thomas J. Fogarty ,  Sascha Zarins

    IPC: A61B18/18 ,  A61B90/00 ,  A61B18/14 ,  A61B19/00 ,  A61B18/00

    Abstract: An antenna guide assembly including a guide body having a proximal end defining at least one proximal entry, a distal end defining at least one distal port, and at least one guide passage extending between the proximal and distal ends. The at least one guide passage is configured to receive at least a portion of an antenna therethrough via the at least one proximal entry such that a distal portion of the antenna extends through and distally from the at least one distal port for insertion into tissue. A locking assembly disposed at the distal end of the guide body is configured to receive the distal portion of the antenna therethrough. The locking assembly is configured to selectively engage the distal portion of the antenna to prevent translation of the antenna within the at least one guide passage.

    Microwave antenna having a reactively-loaded loop configuration
    6.
    发明授权
    Microwave antenna having a reactively-loaded loop configuration 有权
    具有反应负载环路结构的微波天线

    公开(公告)号：US09375276B2

    公开(公告)日：2016-06-28

    申请号：US14189769

    申请日：2014-02-25

    Applicant: COVIDIEN LP

    Inventor： Brian Shiu ,  Joseph D. Brannan ,  Mani N. Prakash

    IPC: A61B18/18 ,  A61B18/00

    CPC classification number: A61B18/1815 ,  A61B2018/00023 ,  A61B2018/00077 ,  A61B2018/0013 ,  A61B2018/00577 ,  A61B2018/1823 ,  A61B2018/1838 ,  A61B2018/1846 ,  A61B2018/1869

    Abstract: A microwave ablation system is provided. The microwave ablation system includes a power source. A microwave antenna is adapted to connect to the power source via a coaxial cable feed including an inner conductor defining a portion of a radiating section of the microwave antenna, an outer conductor and dielectric shielding. The inner conductor loops back around and toward the outer conductor of the coaxial cable feed such that a distal end of the inner conductor is operably disposed adjacent the dielectric shielding. The inner conductor includes one or more reactive components disposed thereon forming a reactively-loaded loop configuration configured to maximize delivery of microwave energy from the power source to tissue such that a desired effect to tissue is achieved.

    Abstract translation: 提供微波消融系统。 微波消融系统包括电源。 微波天线适于经由包括限定微波天线的辐射部分的一部分的内导体，外导体和电介质屏蔽的同轴电缆馈电连接到电源。 内部导体环绕并且朝着同轴电缆馈送器的外部导体回缩，使得内部导体的远端可操作地设置在电介质屏蔽附近。 内部导体包括设置在其上的一个或多个反应性部件，形成反应负载的环形结构，其配置为最大限度地将微波能量从电源传递到组织，从而实现对组织的期望效果。

    Energy delivery conduits for use with electrosurgical devices
    7.
    发明授权
    Energy delivery conduits for use with electrosurgical devices 有权

    公开(公告)号：US10271903B2

    公开(公告)日：2019-04-30

    申请号：US15798910

    申请日：2017-10-31

    Applicant: COVIDIEN LP

    Inventor： Francesca Rossetto ,  Mani N. Prakash ,  Brian Shiu

    IPC: A61B18/14 ,  A61B18/18 ,  H02G3/04 ,  A61B18/00

    Abstract: A conduit assembly for transmitting energy between an electrosurgical energy generator and an energy delivering device comprises a first cable sub-assembly including a cable having a flexibility and an energy attenuation; a second cable sub-assembly including a cable having a flexibility and an energy attenuation; wherein the flexibility of the cable of the first cable sub-assembly is less than the flexibility of the cable of the second cable sub-assembly; and wherein the energy attenuation of the cable of the first cable sub-assembly is less than the energy attenuation of the cable of the second cable sub-assembly.

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