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    • 8. 发明申请
    • A LOWER LIMB PROSTHESIS
    • 一个下限的PROSTHESIS
    • WO2014016583A2
    • 2014-01-30
    • PCT/GB2013/051963
    • 2013-07-23
    • BLATCHFORD PRODUCTS LIMITED
    • ZAHEDI, Mir SaeedHARRIS, GrahamLANG, Stephen TerryPAINTER, Robert Michael AndrewMOSER, David
    • A61F2/66A61F2/68
    • A61F2/70A61F2/60A61F2/64A61F2/6607A61F2/68A61F2002/5006A61F2002/5032A61F2002/5072A61F2002/5079A61F2002/607A61F2002/6678A61F2002/6818A61F2002/704A61F2002/741A61F2002/745A61F2002/748A61F2002/7615
    • A prosthetic ankle has an ankle joint body (10A) constituting a shin component and a foot component (12). The ankle joint body (10A) is pivotally connected to the foot component (12) by a first pivotal connection (14) defining a medial-lateral ankle joint flexion axis. The ankle joint body (10A) also forms the cylinder of an ankle joint piston and cylinder assembly with a superior-inferior central axis, the cylinder housing a piston (16) with upper and lower piston rods (16A, 16B). The lower piston rod (16B) is pivotally connected to the foot component (12) at a second pivotal connection (18). As the ankle joint body (10A) pivots about the ankle joint flexion axis, the piston (16) moves substantially linearly in the cylinder formed by the ankle joint body. The cylinder is divided into upper and lower chambers (20A, 20B). These chambers are linked by an hydraulic circuit (22) incorporating passages (22A, 22B) in the ankle joint body (10A), and an energy conversion device in the form of a slave piston and cylinder assembly (24) having a piston (24P) and piston rods (24R) which project beyond the cylinder (24C) of the assembly (24).
    • 假脚踝具有构成胫部件和脚部件(12)的踝关节体(10A)。 踝关节本体(10A)通过限定内侧踝关节屈曲轴的第一枢转连接(14)枢转地连接到脚部件(12)。 踝关节体(10A)还形成具有上下中心轴线的踝关节活塞和气缸组件的气缸,该气缸容纳具有上下活塞杆(16A,16B)的活塞(16)。 下活塞杆(16B)在第二枢转连接(18)处枢转地连接到脚部件(12)。 当踝关节本体(10A)围绕踝关节弯曲轴线转动时,活塞(16)在由踝关节体形成的圆柱体中基本上线性移动。 气缸被分成上部和下部腔室(20A,20B)。 这些腔室通过在踝关节体(10A)中包括通道(22A,22B)的液压回路(22)连接,并且具有从动活塞和气缸组件(24)形式的能量转换装置具有活塞(24P )和突出超过组件(24)的气缸(24C)的活塞杆(24R)。
    • 9. 发明申请
    • A LOWER LIMB PROSTHESIS
    • WO2013088142A9
    • 2013-06-20
    • PCT/GB2012/053106
    • 2012-12-12
    • BLATCHFORD PRODUCTS LIMITED
    • ZAHEDI, Mir SaeedSTECH, NadineMOSER, DavidSYKES, Andrew John
    • A61F2/68
    • A lower limb prosthesis comprises an attachment section (10), a shin section (12), a foot section (14), a knee joint (16) pivotally connecting the attachment section (10) and the shin section (12), and an ankle joint (22) pivotally connecting the shin section (12) and the foot section (14). The knee joint includes a dynamically adjustable knee flexion control device (18) for damping knee flexion. The prosthesis further comprises a plurality of sensors (52, 53, 54, 85, 87) each arranged to generate sensor signals indicative of at least one respective kinetic or kinematic parameter of locomotion or of walking environment, and an electronic control system (100) coupled to the sensors (52, 53, 54, 85, 87) and to the knee flexion control device (18) in order dynamically and automatically to modify the flexion control setting of the knee joint (16) in response to signals from the sensors. When the inclination sensor signals indicate descent of a downward incline, the damping resistance of the knee flexion control device (18) is set to a first level during a major part of the stance phase of the gait cycle and to a second, lower level during a major part of the swing phase of the gait cycle. During an interval including a latter part of the stance phase, the knee flexion control device (18) is adjusted so that the damping resistance to knee flexion is between the first and second levels.
    • 10. 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。