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    Lower limb prosthesis with means for restricting dorsi-flexion
    1.
    发明授权
    Lower limb prosthesis with means for restricting dorsi-flexion 失效
    下肢假体具有限制背屈的手段

    公开(公告)号：US5112356A

    公开(公告)日：1992-05-12

    申请号：US661440

    申请日：1991-02-25

    Applicant: Graham J. Harris ,  Victor J. Woolnough

    Inventor： Graham J. Harris ,  Victor J. Woolnough

    IPC: A61F2/00 ,  A61F2/50 ,  A61F2/66 ,  A61F2/76

    CPC classification number: A61F2/76 ,  A61F2/66 ,  A61F2/6607 ,  A61F2002/30434 ,  A61F2002/30443 ,  A61F2002/30494 ,  A61F2002/5007 ,  A61F2002/5018 ,  A61F2002/503 ,  A61F2002/5055 ,  A61F2002/6614 ,  A61F2002/6671 ,  A61F2220/0025 ,  A61F2220/0041

    Abstract: In a lower limb prosthesis an energy storing foot is combined with a resilient ankle joint which is arranged to allow planatar flexion but substantially to prevent dorsiflexion. The ankle joint comprises a ball and socket joint, the socket of which is extended downwardly on the anterior, medial and lateral sides to for a skirt positioned so as to compress a resilient ring encircling a ball member of the ball and socket joint. Metal plates are embedded in the anterior part of the ring to prevent significant dorsiflexion. The foot has a keel having a lower spring portion connected at its posterior end as a cantilever to an upper ankle mounting portion. These two portions may be formed as a single carbon fibre reinforced plastics moulding or individually as part of a two-piece keel with the ankle mounting portion rigid and the spring portion as simple fibre-reinforced strip. The resilience of the foot is adjustable by means of a displaceable resilient buffer element mounted ahead of the ankle centre as a coarse adjustment device and/or by means of a transversely extending support bar which can be moved longitudinally behind the ankle centre by rotating an adjusting screw. The screw passes through an aperture in the keel and is accessible at the rear of the heel.

    Abstract translation: 在下肢假体中，能量储存脚与弹性脚踝关节组合，弹性脚踝关节被布置成允许屈曲，同时基本上防止背屈。 踝关节包括球窝接头，其插座在前内侧和外侧向下延伸以用于裙部，该裙部定位成压缩围绕球窝接头的球形构件的弹性环。 金属板嵌入环的前部，以防止显着的背屈。 脚具有龙骨，其下弹簧部分在其后端连接到上踝安装部分的悬臂。 这两个部分可以形成为单个碳纤维增强塑料模制件或单独地形成为两件式龙骨的一部分，其中脚踝安装部分刚性并且弹簧部分是简单的纤维增强条。 脚的弹性可通过安装在踝中心前方的可位移的弹性缓冲元件作为粗略调节装置和/或通过横向延伸的支撑杆来调节，该支撑杆可以通过旋转调节器 拧。 螺丝穿过龙骨中的孔，并且可以在后跟的后部进入。

    Multi-bar linkage knee with fixed rotation axis
    2.
    发明授权
    Multi-bar linkage knee with fixed rotation axis 失效
    多杆联动膝固定旋转轴

    公开(公告)号：US4215442A

    公开(公告)日：1980-08-05

    申请号：US946371

    申请日：1978-09-27

    Applicant: Brian G. Blatchford ,  Victor J. Woolnough

    Inventor： Brian G. Blatchford ,  Victor J. Woolnough

    IPC: A61F2/50 ,  A61F2/64 ,  A61F1/04 ,  A61F1/08

    CPC classification number: A61F2/644 ,  A61F2002/5073

    Abstract: An artificial leg employs a knee mechanism having a multi-bar linkage (1, 3, 4, 7, 9, 12). The leg is intended for patients having a disarticulated knee amputation or an above-knee amputation with a long thigh stump, the mechanism being situated in the upper part of the calf. The geometry of the linkage is such that the mechanism has a fixed or virtually fixed axis of rotation (16) which is projected outside the confines of the mechanism into the space occupied by the end portion of the stump. Since the mechanism is uniaxial and internal, a relatively good external appearance can be obtained.

    Abstract translation: 人造腿采用具有多杆连杆（1,3,4,7,9,12）的膝盖机构。 该腿适用于具有脱膝关节截肢或具有长大腿残端的膝盖截肢的患者，该机构位于小腿上部。 连杆的几何形状使得该机构具有固定的或实质上固定的旋转轴线（16），该旋转轴线（16）突出到机构的边界外部到由树桩的端部占据的空间中。 由于机构是单轴的和内部的，所以可以获得相对良好的外观。

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