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    • 10. 发明申请
    • Laparoscopic Bipolar Electrosurgical Instrument
    • 腹腔镜双极电外科仪器
    • US20080215051A1
    • 2008-09-04
    • US12056488
    • 2008-03-27
    • Steven P. BuysseKate R. LawesDale F. SchmaltzMichael J. LandsS. Wade LukianowKristin D. JohnsonGary M. CoutureLap P. Nguyen
    • Steven P. BuysseKate R. LawesDale F. SchmaltzMichael J. LandsS. Wade LukianowKristin D. JohnsonGary M. CoutureLap P. Nguyen
    • A61B18/14
    • A61B18/1445
    • A laparoscopic bipolar electrosurgical instrument for sealing tissue includes a handle having an elongated tube affixed thereto. The tube includes first and second jaw members having electrically conductive sealing surfaces attached to a distal end thereof which are movable from a first position for approximating tissue to a second position for grasping tissue therebetween. The handle includes a fixed handle and a handle which is movable relative to the fixed handle to effect movement of the jaw members from the first position to the second position for grasping tissue. The jaw members connect to a source of electrosurgical energy such that the opposable sealing surfaces are capable of conducting electrosurgical energy through tissue held therebetween. A stop is included for maintaining a minimum separation distance between opposing sealing surfaces. A ratchet is also included to maintain a closure force in the range of about 7 kg/cm2 to about 13 kg/cm2 between opposing sealing surfaces.
    • 用于密封组织的腹腔镜双极电外科器械包括具有固定到其上的细长管的手柄。 管包括第一和第二钳口构件,其具有附接到其远端的导电密封表面,其可从用于近似组织的第一位置移动到用于抓握其间的组织的第二位置。 手柄包括固定手柄和手柄,该手柄可相对于固定手柄移动,以实现卡爪构件从第一位置到第二位置的移动,从而抓住组织。 钳口构件连接到电外科能量源,使得相对的密封表面能够通过保持在其间的组织进行电外科能量。 包括一个止动件,用于保持相对的密封表面之间的最小间隔距离。 还包括棘轮以在相对的密封表面之间保持约7kg / cm 2至约13kg / cm 2的范围内的闭合力。