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    • 2. 发明申请
    • LEG PROSTHESIS
    • WO2013017856A1
    • 2013-02-07
    • PCT/GB2012/051827
    • 2012-07-27
    • BLATCHFORD PRODUCTS LIMITEDZAHEDI, Mir SaeedHARRIS, GrahamMcCARTHY, Joseph
    • ZAHEDI, Mir SaeedHARRIS, GrahamMcCARTHY, Joseph
    • A61F2/60A61F2/64A61F2/66
    • A61F2/60A61F2/642A61F2002/502A61F2002/5055A61F2002/5079A61F2002/607A61F2002/608A61F2002/6664A61F2002/6671A61F2002/6678A61F2002/704A61F2002/74A61F2002/7625A61F2002/7635A61F2002/764
    • In a lower limb prosthesis (10) for a transfemoral amputee, the shin portion (12), ankle portion (14) and a forefoot part (17) of the foot portion (16) are formed as integral fibre - reinforced plastics leaf spring component. This integral component is adjustably mounted to a knee joint (22) which has a knee chassis (22A), a cradle (22B) pivotally connected to and depending from the knee chassis, and a flexion control unit (24) in the form of a piston and cylinder assembly interconnecting the knee chassis and the cradle. The shin portion has an elongate resilient section of constant cross - section which is oriented substantially vertically when the prosthesis is in a static standing position. The connection of this resilient section to the knee joint cradle and the arrangement of the cradle is such that the vertical distance between the knee axis of rotation and the location of the connection is less than 25% of the vertical distance between the knee axis and the lowest weight -bearing surface of the foot portion. This maximises the length of the resiliently deflectable part of the shin portion.
    • 在用于经股经截肢的下肢假体(10)中,脚部(16)的胫部(12),踝部(14)和前脚部(17)形成为整体纤维增强塑料片弹簧部件 。 该整体部件可调节地安装在膝关节(22)上,膝关节(22)具有膝盖底座(22A),枢转地连接到膝部底盘并从膝部底盘离开的支架(22B),以及弯曲控制单元(24) 活塞和气缸组件将膝盖底盘和支架互连。 该原始部分具有恒定横截面的细长的弹性部分,当假体处于静态立场时,其基本垂直地定向。 该弹性部分与膝关节支架的连接以及托架的布置使得膝盖旋转轴线与连接位置之间的垂直距离小于膝部轴线与膝盖轴线之间的垂直距离的25% 脚部最低重量表面。 这使得该原始部分的弹性偏转部分的长度最大化。
    • 7. 发明申请
    • ARTIFICIAL LEG
    • 人造专家
    • WO1994006374A1
    • 1994-03-31
    • PCT/GB1993001946
    • 1993-09-14
    • CHAS A BLATCHFORD & SONS LIMITEDHARRIS, Graham, James
    • CHAS A BLATCHFORD & SONS LIMITED
    • A61F02/64
    • A61F2/64A61F2002/5075A61F2002/5079A61F2002/74A61F2002/748
    • An artificial leg has knee stabilisation in the stance phase provided by a hydraulic piston and cylinder assembly (22) for resisting flexion at the knee. The resistance to flexion is controlled according to the axial load applied to the leg by means of a mechanism which allows movement of a knee axis (16) of rotation relative to a main shin component (20), the knee axis (16) being defined by a tubular shaft (14) mounted on a resilient arm (18). Movement of the knee axis (16) is detected by a rocking connector member (40) mounted on a knee chassis, one end of the connector member engaging a trigger element (36T) which remains stationary with the main shin component (20) and the other end engaging a control member (44R) on the piston and cylinder assembly (22) at a position adjacent its connection to the knee chassis. Application of an axial load results in the connector member (40) rocking about a rocking axis to move the control member (44R) which thereby increases resistance to flexion. In an alternative embodiment the resilient arm (18) is replaced by a pivoting link with an integral leaf spring.
    • 人造腿在由液压活塞和气缸组件(22)提供的姿态阶段中具有膝盖稳定性,用于抵抗膝盖处的屈曲。 根据通过允许膝部轴线(16)相对于主胫部件(20)的旋转运动的机构,根据施加到腿部的轴向载荷来控制抗屈曲性,所述膝部轴线(16)被限定 通过安装在弹性臂(18)上的管状轴(14)。 膝盖轴线(16)的移动由安装在膝盖底盘上的摇摆连接器构件(40)检测,连接器构件的一端接合与主声部件(20)保持静止的触发元件(36T) 另一端在邻近其与膝盖底盘的连接的位置处接合活塞和气缸组件(22)上的控制构件(44R)。 施加轴向载荷导致围绕摇摆轴摆动的连接器构件(40)移动控制构件(44R),从而增加抵抗屈曲力。 在替代实施例中,弹性臂(18)由具有整体板簧的枢转连杆代替。