利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.012 秒)

    Impedance feedback monitor for electrosurgical instrument
    3.
    发明公开
    Impedance feedback monitor for electrosurgical instrument 失效
    电外科仪器的阻抗反馈监视器

    公开(公告)号：EP0717967A3

    公开(公告)日：1996-08-14

    申请号：EP95309351.5

    申请日：1995-12-21

    申请人： ETHICON ENDO-SURGERY, INC.

    发明人： Williamson, Warren P. ,  Yates, David C.

    IPC分类号： A61B17/39 ,  A61B17/072

    CPC分类号： A61B18/1447 ,  A61B17/07207 ,  A61B17/115 ,  A61B17/32 ,  A61B18/1206 ,  A61B18/1402 ,  A61B18/1442 ,  A61B2017/07214 ,  A61B2017/07228 ,  A61B2018/00642 ,  A61B2018/00672 ,  A61B2018/00684 ,  A61B2018/00702 ,  A61B2018/00875 ,  A61B2018/1273 ,  A61B2018/1861 ,  A61B2090/032

    摘要： Query electrodes are provided for monitoring the electrical impedance of tissue as it is treated with electrosurgical energy. In one embodiment, based on a predicted model of tissue impedance and a number of initial impedance readings, the impedance at which tissue treatment is completed is predicted. More particularly, a minimum impedance level is measured and a function of the minimum impedance is used to determine impedance at which coagulation is completed. A control device is provided for bringing the output of the generator within an optimum range based on a system load curve. In one embodiment the impedance monitoring device is used in conjunction with a bipolar electrosurgicalinstrument. Preferably, the instrument comprises electrically opposite therapeutic electrodes, each located on one or more tissue engaging surfaces for engaging tissue to be treated, and electrically opposite query electrodes, located on one or more tissue engaging surfaces. The therapeutic electrodes provide therapeutic energy to the tissue while the query electrodes provide a lower voltage electrical sensing energy for the purpose of measuring tissue impedance at various stages, e.g. before, during, or after tissue treatment.

    摘要翻译： 查询电极用于监测组织用电外科能量处理时的电阻抗。 在一个实施例中，基于组织阻抗的预测模型和多个初始阻抗读数，预测组织治疗完成时的阻抗。 更具体地，测量最小阻抗水平并且使用最小阻抗的函数来确定凝结完成时的阻抗。 提供了一种控制装置，用于根据系统负载曲线使发电机的输出处于最佳范围内。 在一个实施例中，阻抗监测装置与双极电外科手术器械结合使用。 优选地，器械包括电相对的治疗电极，每个治疗电极位于用于接合待治疗组织的一个或多个组织接合表面上，以及位于一个或多个组织接合表面上的电相对查询电极。 治疗电极向组织提供治疗能量，同时查询电极提供较低电压的电感应能量用于测量各个阶段的组织阻抗，例如， 组织治疗之前，期间或之后。

    Improved electrosurgical hemostatic device including an anvil
    5.
    发明公开
    Improved electrosurgical hemostatic device including an anvil 失效
    Elektrochirurgische，blutstillende，einen Amboss aufweisende Vorrichtung

    公开(公告)号：EP0878169A1

    公开(公告)日：1998-11-18

    申请号：EP98303755.7

    申请日：1998-05-13

    申请人： ETHICON ENDO-SURGERY, INC.

    发明人： Yates, David C. ,  Voegele, James W. ,  Kuhns, Jesse ,  Nalagatla, Anil ,  Williamson, Warren P. ,  Powell, Darrel M.

    IPC分类号： A61B17/39 ,  A61B17/072

    CPC分类号： A61B18/1206 ,  A61B17/07207 ,  A61B17/115 ,  A61B17/1155 ,  A61B17/32 ,  A61B18/1402 ,  A61B18/1447 ,  A61B2017/07264 ,  A61B2018/00666 ,  A61B2018/00875 ,  A61B2090/032

    摘要： An electrosurgical instrument is provided for cauterization and/or welding of tissue of varying impedance, thickness and vascularity especially in the performance of endoscopic procedures. The instrument compresses the tissue between one pole of a bipolar energy source located on one interfacing surface, and a second interfacing surface applying pressure in a predetermined range wherein one of the interfacing surfaces is positioned on an anvil with a specified preload and spring rate. A second pole is located one of the two interfacing surfaces. In a preferred embodiment, the second pole is located on the same interfacing surface as the first pole and an insulator electrically isolates the two poles. A preferred application of the invention is in a cutting instrument wherein a hemostatic line is formed along a cut line using RF energy.

    摘要翻译： 提供了一种电外科手术器械，用于灼烧和/或焊接不同阻抗，厚度和血管的组织，特别是在内镜手术的执行过程中。 该仪器压缩位于一个界面表面上的双极能量源的一极之间的组织和在预定范围内施加压力的第二接口表面，其中一个接口表面以特定的预载和弹簧刚度位于砧座上。 第二个极点位于两个接口表面之一。 在优选实施例中，第二极位于与第一极相同的接口表面上，并且绝缘体电隔离两极。 本发明的优选应用在切割仪器中，其中使用RF能量沿着切割线形成止血线。

    Impedance feedback monitor for electrosurgical instrument
    8.
    发明公开
    Impedance feedback monitor for electrosurgical instrument 失效
    仪器仪表（Impedanzrückkopplungsüberwacherfürelektrochirurgisches Instrument）

    公开(公告)号：EP0717967A2

    公开(公告)日：1996-06-26

    申请号：EP95309351.5

    申请日：1995-12-21

    申请人： ETHICON ENDO-SURGERY, INC.

    发明人： Williamson, Warren P. ,  Yates, David C.

    IPC分类号： A61B17/39 ,  A61B17/072

    CPC分类号： A61B18/1447 ,  A61B17/07207 ,  A61B17/115 ,  A61B17/32 ,  A61B18/1206 ,  A61B18/1402 ,  A61B18/1442 ,  A61B2017/07214 ,  A61B2017/07228 ,  A61B2018/00642 ,  A61B2018/00672 ,  A61B2018/00684 ,  A61B2018/00702 ,  A61B2018/00875 ,  A61B2018/1273 ,  A61B2018/1861 ,  A61B2090/032

    摘要： Query electrodes are provided for monitoring the electrical impedance of tissue as it is treated with electrosurgical energy. In one embodiment, based on a predicted model of tissue impedance and a number of initial impedance readings, the impedance at which tissue treatment is completed is predicted. More particularly, a minimum impedance level is measured and a function of the minimum impedance is used to determine impedance at which coagulation is completed. A control device is provided for bringing the output of the generator within an optimum range based on a system load curve. In one embodiment the impedance monitoring device is used in conjunction with a bipolar electrosurgicalinstrument. Preferably, the instrument comprises electrically opposite therapeutic electrodes, each located on one or more tissue engaging surfaces for engaging tissue to be treated, and electrically opposite query electrodes, located on one or more tissue engaging surfaces. The therapeutic electrodes provide therapeutic energy to the tissue while the query electrodes provide a lower voltage electrical sensing energy for the purpose of measuring tissue impedance at various stages, e.g. before, during, or after tissue treatment.

    摘要翻译： 提供查询电极，用于监测组织的电阻抗，因为它被电外科能量治疗。 在一个实施例中，基于组织阻抗和初始阻抗读数的预测模型，预测组织处理完成的阻抗。 更具体地，测量最小阻抗水平，并且使用最小阻抗的函数来确定凝结完成的阻抗。 提供了一种控制装置，用于基于系统负载曲线使发电机的输出达到最佳范围。 在一个实施例中，阻抗监测装置与双极电外科仪器结合使用。 优选地，该仪器包括电对立的治疗电极，每个电极位于一个或多个组织接合表面上，用于接合待治疗的组织，以及位于一个或多个组织接合表面上的电气相对的查询电极。 治疗电极为组织提供治疗能量，而查询电极提供较低电压的电感测能量，以便在各个阶段例如测量组织阻抗。 组织治疗之前，期间或之后。