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    • 10. 发明授权
    • Safety trocar with locking handles
    • 带锁柄的安全套管
    • US5356421A
    • 1994-10-18
    • US957673
    • 1992-10-07
    • Salvatore Castro
    • Salvatore Castro
    • A61B17/34A61M5/18
    • A61B17/3496A61B17/34
    • An apparatus is disclosed for automatically locking an obturator housing to a cannula housing of a trocar assembly when the obturator is advanced to a predetermined distal position. Two latch devices are mounted for pivotal movement within the obturator housing with each having at least one latch positioned at one end thereof. The pivoting latch devices are automatically pivoted into locked engagement with partial apertures or indentations in the cannula housing such that the obturator housing is secured to the cannula housing. Biasing springs are provided to automatically pivot the pivoting latch devices out of engagement with the cannula housing when the obturator is withdrawn to its proximal position.
    • 公开了一种用于当闭塞器前进到预定远端位置时将闭塞器壳体自动锁定到套管针组件的插管壳体的装置。 安装两个闩锁装置用于在闭塞器壳体内枢转运动,每个闩锁装置具有位于其一端的至少一个闩锁。 枢转闩锁装置自动地枢转到与插管壳体中的部分孔或凹陷部锁定接合,使得闭孔器壳体固定到套管壳体。 提供偏置弹簧以在闭塞器被拉出到其近端位置时自动枢转枢转闩锁装置脱离与套管壳体的接合。