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    • 85. 发明申请
    • SURGICAL INSTRUMENT
    • 手术器械
    • US20120179064A1
    • 2012-07-12
    • US13262124
    • 2010-03-31
    • Richard Mark ScottStephen Addison Hall
    • Richard Mark ScottStephen Addison Hall
    • A61B10/02
    • A61B10/0266A61B10/0291A61B10/06A61B2010/0208A61B2017/2927A61B2017/32004
    • A surgical instrument (10) for removing a sample (50, 82) from a body of tissue (80) comprises a support structure (30) and a knife (32) arranged to cut into the body of tissue (80). The knife (32) has at least a first blade (36a), a second blade (36b) and a third blade (36c), and each blade has two cutting edges (42a, 44a; 42b, 44b; 42c, 44c) defining an apex. The knife (32) is movable between a first configuration in which the blades (36a, 36b, 36c) are substantially aligned along the longitudinal axis (X) of the support structure (30), and a second configuration in which the blades (36a, 36b, 36c) define the walls of a pyramidal enclosure for containing the sample (50, 82). In one embodiment, the instrument (10) further comprises a biasing member (52a, 52b, 52c) arranged to urge each blade (36a, 36b, 36c) towards the central axis (X) of the support structure (30). In another embodiment, the instrument (10) further comprises a plunger (72) disposed in, and being axially movable in a longitudinal direction along, the support structure (30). The plunger (72) is arranged to move the knife (32) between the first configuration and the second configuration.
    • 用于从组织体(80)移除样品(50,82)的外科器械(10)包括支撑结构(30)和布置成切入组织体(80)的刀(32)。 刀具(32)具有至少第一刀片(36a),第二刀片(36b)和第三刀片(36c),并且每个刀片具有两个切割边缘(42a,44a; 42b,44b; 42c,44c) 一个顶点 所述刀(32)可在其中所述刀片(36a,36b,36c)沿着所述支撑结构(30)的纵向轴线(X)基本上对准的第一构造和第二构造(第二构造,其中所述刀片 ,36b,36c)限定用于容纳样品(50,82)的金字塔形外壳的壁。 在一个实施例中,仪器(10)还包括偏置构件(52a,52b,52c),该偏置构件(52a,52b,52c)朝着支撑结构(30)的中心轴线(X)推动每个叶片(36a,36b,36c)。 在另一个实施例中,仪器(10)还包括柱塞(72),该柱塞(72)沿着支撑结构(30)沿着纵向方向设置并且可轴向移动。 柱塞72设置成在第一配置和第二配置之间移动刀具32。