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    • 4. 发明公开
    • Apparatus and method for determining the tension on a ligament graft
    • Vorrichtung und Verfahren zur Bestimmung der Spannung eines Ligamenttransplantats。
    • EP0379789A1
    • 1990-08-01
    • EP89311966.9
    • 1989-11-20
    • SMITH & NEPHEW RICHARDS, INC.
    • McLeod, WilliamWisnewski, PaulEvans, DavidGosney, Mark
    • A61F2/08
    • A61F2/0805A61B90/06
    • An instrument for determining the variation in tension of a ligament graft extending between first and second proposed fixation sites positioned on first and second articulated bones, respectively, comprises a yoke (16) which carries a device for securing the yoke to one of the first and second bones. A yoke plate (18) is rotatable carried by the yoke. A main housing (60) is adapted for connection to the yoke plate. A sled (78) is slidably carried by the main housing. The sled is adapted for connection to the ligament graft. A mechanism (85, 91) is provided for adjusting the position of the sled relative to the housing so as to place a desired degree of tension on the ligament graft. A transducer (87) is associated with the mechanism for adjusting for determining changes in tension, if any, from the desired degree of tension as the first and second bones are moved relative to one another.
    • 用于确定在分别位于第一和第二铰接骨头上的第一和第二被提出的固定位置之间延伸的韧带移植物的张力变化的仪器包括轭架(16),该轭架承载用于将轭固定到第一和第二关节骨架 第二骨头 轭架(18)可由轭架转动。 主壳体(60)适于连接到轭板。 滑板(78)由主壳体可滑动地承载。 雪橇适用于连接韧带移植物。 提供了一种机构(85,91),用于调节滑板相对于壳体的位置,以便在韧带移植物上放置期望的张力。 传感器(87)与用于调节的机构相关联,用于当第一和第二骨骼相对于彼此移动时,确定来自所需张力的张力的变化(如果有的话)。