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    • 3. 发明申请
    • ENDOSCOPIC SURGICAL INSTRUMENT
    • 内窥镜手术器械
    • WO1995034259A1
    • 1995-12-21
    • PCT/US1995009152
    • 1995-06-12
    • DESAI, Ashvin, H.
    • A61F05/48
    • A61B18/1477A61B17/3498A61B18/1402A61B18/1442A61B18/1482A61B18/149A61B2017/00026A61B2018/0091A61B2018/00916A61B2018/00982A61B2018/1253A61B2018/126A61B2218/002A61B2218/007A61M1/0062A61M1/0064A61N5/0601A61N5/062
    • An endoscopic surgical instrument (201) includes a housing (210), a single access conduit (212) formed in the housing (210), an irrigation port, and an evacuation port, each port being connected through independent valves to the single access conduit (212). The single access conduit (212) has a first end and a second end which is terminated in an aperture formed in the housing (210). A closure is provided for the aperture. A viewing device, such as an endoscope, is insertable through the aperture and the single access conduit (212), and is extended slightly beyond the first end. An electrode assembly (202) having two or more retractable RF electrodes spaced a predetermined distance and angle apart, is also insertable through the aperture and the single access conduit (212), and is extendable beyond the first end. Each RF electrode is in electrical communication with a means for supplying RF energy and for continuously measuring impedance across the electrodes.
    • 内窥镜手术器械(201)包括壳体(210),形成在壳体(210)中的单个进入管道(212),冲洗口和排气口,每个端口通过独立的阀连接到单个进入导管 (212)。 单个进入管道(212)具有第一端和第二端,其终止于形成在壳体(210)中的孔中。 为孔径提供闭合件。 诸如内窥镜的观察装置可以通过孔和单个进入导管(212)插入,并且稍微延伸超过第一端。 具有间隔预定距离和角度分开的两个或更多个可伸缩RF电极的电极组件(202)也可插入穿过孔和单个通路导管(212),并且可延伸超过第一端。 每个RF电极与用于提供RF能量的装置电连通并且用于连续测量电极两端的阻抗。