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    Leaky-wave antennas for medical applications
    172.
    发明授权
    Leaky-wave antennas for medical applications 有权
    用于医疗应用的漏波天线

    公开(公告)号：US08968292B2

    公开(公告)日：2015-03-03

    申请号：US14192142

    申请日：2014-02-27

    Applicant: Covidien LP

    Inventor： Francesca Rossetto ,  Joseph D. Brannan ,  Joseph A. Paulus ,  Christopher A. Deborski

    IPC: A61B18/04 ,  A61B18/18 ,  H01Q1/27 ,  H01Q13/20 ,  H04B5/00

    CPC classification number: A61B18/1815 ,  A61B18/18 ,  A61B2018/1823 ,  A61B2018/1838 ,  H01Q1/273 ,  H01Q13/203 ,  H04B5/0018

    Abstract: A device for directing energy to a target volume of tissue includes an inner conductor having a length and an outer conductor coaxially surrounding the inner conductor along the length. The outer conductor has a proximal portion and a distal portion. The distal portion of the outer conductor is provided with a number of apertures N defined therein for radiating energy, where N is an integer greater than 1, each aperture having a size and extending at an angle relative to a longitudinal axis of the outer conductor. At least one of the size and the angle of each aperture is varied in relation to the other apertures N−1 such that the energy radiated along the distal portion is substantially uniform.

    Abstract translation: 用于将能量引导到组织的目标体积的装置包括具有长度的内部导体和沿着长度同心围绕内部导体的外部导体。 外导体具有近端部分和远端部分。 外部导体的远端部分设置有限定在其中的若干孔N，用于辐射能量，其中N是大于1的整数，每个孔具有尺寸并且相对于外部导体的纵向轴线以一定角度延伸。 每个孔的尺寸和角度中的至少一个相对于另一个孔N-1变化，使得沿着远端部分辐射的能量基本上是均匀的。

    System and method for monitoring ablation size
    173.
    发明授权
    System and method for monitoring ablation size 有权
    用于监测消融尺寸的系统和方法

    公开(公告)号：US08894641B2

    公开(公告)日：2014-11-25

    申请号：US14064846

    申请日：2013-10-28

    Applicant: Covidien LP

    Inventor： Joseph D. Brannan

    IPC: A61B18/18 ,  A61B18/12 ,  A61B18/00 ,  A61N5/04

    CPC classification number: A61B18/18 ,  A61B18/1206 ,  A61B18/1815 ,  A61B2018/00023 ,  A61B2018/00684 ,  A61B2018/00702 ,  A61B2018/00875 ,  A61N5/045

    Abstract: A system for monitoring ablation size is provided and includes a power source including a microprocessor for executing at least one control algorithm. A microwave antenna is configured to deliver microwave energy from the power source to tissue to form an ablation zone. An ablation zone control module is in operative communication with memory associated with the power source. The memory includes one or more data look-up tables including one or more electrical parameter associated with the microwave antenna. The one or more electrical parameters corresponding to an ablation zone having a radius. The one or more electrical parameters include a threshold value, wherein when the threshold value is met the power source is adjusted to form an ablation zone of suitable proportion.

    Abstract translation: 提供了一种用于监测消融尺寸的系统，并且包括用于执行至少一个控制算法的微处理器的电源。 微波天线被配置为将微波能量从电源传送到组织以形成消融区域。 消融区域控制模块与与电源相关联的存储器操作性地通信。 存储器包括一个或多个数据查找表，其包括与微波天线相关联的一个或多个电参数。 对应于具有半径的消融区域的一个或多个电参数。 一个或多个电参数包括阈值，其中当满足阈值时，调整电源以形成适当比例的消融区域。

    STEP-DOWN COAXIAL MICROWAVE ABLATION APPLICATORS AND METHODS FOR MANUFACTURING SAME
    174.
    发明申请
    STEP-DOWN COAXIAL MICROWAVE ABLATION APPLICATORS AND METHODS FOR MANUFACTURING SAME 有权

    公开(公告)号：US20140290830A1

    公开(公告)日：2014-10-02

    申请号：US14228775

    申请日：2014-03-28

    Applicant: Covidien LP

    Inventor： Joseph D. Brannan

    IPC: A61B18/18 ,  B32B37/02

    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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