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    • 34. 发明申请
    • ELECTROSURGICAL INSTRUMENT AND METHOD OF USE
    • 静电仪器及其使用方法
    • WO03061456A2
    • 2003-07-31
    • PCT/US0302131
    • 2003-01-22
    • SCIOGEN LLC
    • TRUCKAI CSABASHADDUCK JOHN HBAKER JAMES A
    • A61B18/12A61B20060101A61B1/00A61B18/04A61B18/14A61B18/18A61B
    • A61B18/1442A61B2018/00077A61B2018/00083A61B2018/00125A61B2018/00148A61B2018/0063
    • An electrosurgical medical device and method for creating thermal welds in engaged tissue. In one embodiment, at least one jaw of the instrument defines a tissue engagement plane carrying a conductive-resistive matrix of a conductively-doped non-conductive elastomer. The engagement surface portions thus can be described as a positive temperature coefficient material that has a unique selected decreased electrical conductance at each selected increased temperature thereof over a targeted treatment range. The conductive-resistive matrix can be engineered to bracket a targeted thermal treatment range, for example about 60 oC. to 80 oC., at which tissue welding can be accomplished. In one mode of operation, the engagement plane will automatically modulate and spatially localize ohmic heating within the engaged tissue from Rf energy application-across micron-scale portions of the engagement surface. In another mode of operation, a conductive-resistive matrix can induce a "wave" of Rf energy density to sweep across the tissue to thereby weld tissue.
    • 一种用于在接合组织中产生热焊缝的电外科医疗装置和方法。 在一个实施例中,仪器的至少一个钳口限定了携带导电掺杂非导电弹性体的导电电阻矩阵的组织接合平面。 因此,接合表面部分可以描述为正温度系数材料,其在目标处理范围内在其每个选定的升高温度下具有唯一选择的降低的电导率。 导电电阻矩阵可以被设计成支架于目标热处理范围,例如约60℃。 至80℃,可以进行组织焊接。 在一种操作模式中,接合平面将自动地调节并且在接合表面的微米级部分上从Rf能量施加 - 自动地调节所接合组织内的欧姆加热。 在另一种操作模式中,导电电阻矩阵可以引起Rf能量密度的“波”,从而扫过组织从而焊接组织。
    • 35. 发明申请
    • INVASIVE THERAPEUTIC PROBE
    • 入侵治疗方案
    • WO2003047043A1
    • 2003-06-05
    • PCT/US2002/037534
    • 2002-11-22
    • MEDLENNIUM TECHNOLOGIES, INC.
    • MAHON, JohnRHEINISH, ScottSHISHEGAR, AhmadCHIU, John
    • H01R12/20
    • A61B18/18A61B18/1815A61B2018/00083A61B2018/00148A61B2018/00577A61B2018/00702A61B2018/00791A61B2018/183
    • An invasive therapeutic probe assembly and related methods for application of RF energy to a volume of body tissue are provided. The probe assembly includes an RF source configured to provide an RF energy having selected characteristics, a probe having a probe shaft and an antenna (18) positioned therein, and a feed line (20) for providing conductivity from the RF source to the antenna (18) probe. The probe assembly is adapted to generate a zone of therapeutic effectiveness having a selected geometry and volume. The related method includes positioning the probe in a selected location with reference to a target tissue, initiating an electromagnetic field from the antenna (18) having a selected geometry, and producing a zone of therapeutic effectiveness having a selected geometry and volume. The producing step preferably includes, taking periodic temperature measurements from sensors positioned at a selected location, and manipulating the selected characteristics of the RF energy to include duration and/or power level.
    • 提供侵入式治疗探针组件以及将RF能量应用于体积组织的相关方法。 探针组件包括被配置为提供具有所选特征的RF能量的RF源,具有探针轴和位于其中的天线(18)的探针和用于提供从RF源到天线的导电性的馈电线(20) 18)探针。 探针组件适于产生具有所选几何和体积的治疗有效性区域。 相关方法包括将探针定位在参考目标组织的选定位置,从具有所选几何形状的天线(18)启动电磁场,并产生具有所选几何和体积的治疗有效性区域。 生产步骤优选地包括从定位在所选位置的传感器进行周期性温度测量,以及操纵所选择的RF能量特征以包括持续时间和/或功率水平。