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    Artificial leg
    3.
    发明授权
    Artificial leg 失效
    人造腿

    公开(公告)号：US4461045A

    公开(公告)日：1984-07-24

    申请号：US445747

    申请日：1982-11-30

    Applicant: John J. Shorter ,  Michael W. Brewer

    Inventor： John J. Shorter ,  Michael W. Brewer

    IPC: A61F2/00 ,  A61F2/30 ,  A61F2/40 ,  A61F2/46 ,  A61F2/50 ,  A61F2/60 ,  A61F2/66 ,  A61F1/04

    CPC classification number: A61F2/60 ,  A61F2/6607 ,  A61F2002/30377 ,  A61F2002/30434 ,  A61F2002/30494 ,  A61F2002/3051 ,  A61F2002/5003 ,  A61F2002/5009 ,  A61F2002/5018 ,  A61F2002/5083 ,  A61F2002/5098 ,  A61F2002/665 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2220/0041

    Abstract: An improved artificial leg has a ball and socket ankle joint (3) connecting a foot (2) to a shin member (1). The ankle joint comprises a two-part socket (5A, 5B) enclosing a part-spherical ball member (4) with an elastic sleeve (6) sandwiched between the socket and the ball member (4) to allow resilient flexion of the foot (2) relative to the shin member (1). In order to provide relatively more resistance to dorsi-flexion than to plantar-flexion, an elastic buffer in the form of a ring (11) is disposed around a coupling shank portion (4A) of the ball member (4) to engage a downwardly extending anterior skirt portion (12) of the socket. In the preferred embodiment of the invention the skirt portion (12) also extends around each side of the ring (11) to provide resistance to medial and lateral flexion.

    Abstract translation: 改进的人造腿具有将脚（2）连接到胫部构件（1）的球窝接头（3）。 脚踝关节包括一个两部分的插座（5A，5B），其包围一个部分球形的球形部件（4），弹性套筒（6）夹在插座和球形部件（4）之间，以允许脚的弹性弯曲 2）。 为了提供比脚底屈曲相对更大的抵抗背屈的能力，在球部件（4）的联轴器部分（4A）的周围设置环形（11）形式的弹性缓冲器，从而向下 延伸插座的前裙部（12）。 在本发明的优选实施例中，裙部（12）还围绕环（11）的每一侧延伸以提供抵抗内侧和侧向屈曲的阻力。

    Artificial ankle joint
    4.
    发明授权
    Artificial ankle joint 失效
    人造踝关节

    公开(公告)号：US4645508A

    公开(公告)日：1987-02-24

    申请号：US753639

    申请日：1985-07-10

    Applicant: John J. Shorter ,  Stanley T. Early

    Inventor： John J. Shorter ,  Stanley T. Early

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

    CPC classification number: A61F2/6607 ,  A61F2002/30497 ,  A61F2002/5096 ,  A61F2220/0025

    Abstract: An artificial ankle joint (FIG. 1) is of the kind which connects a shin member to a foot, by means of a ball and socket joint. The socket has adjacent main and subsidiary socket portions. The main socket portion has a first part, which engages the elastic covering of the ball, and a second part which extends down from the first part and receives within it the subsidiary socket portion. A circlip locks the parts together. The main socket portion includes an integral skirt which engages an annular elastic buffer which is mounted around the ball shank.

    Abstract translation: 人造踝关节（图1）是通过球窝接头连接胫部构件和脚部的那种。 插座具有相邻的主插座部分和辅助插座部分。 主插座部分具有接合球的弹性覆盖物的第一部分和从第一部分向下延伸并在其内容纳辅助插座部分的第二部分。 一个簧环将零件锁在一起。 主插座部分包括一整体裙部，该裙部与围绕球柄安装的环形弹性缓冲器接合。

    Artificial leg with hydraulic knee flexion resistance
    5.
    发明授权
    Artificial leg with hydraulic knee flexion resistance 失效
    人造腿具有液压膝盖屈曲抗力

    公开(公告)号：US5376137A

    公开(公告)日：1994-12-27

    申请号：US93797

    申请日：1993-07-19

    Applicant: John J. Shorter ,  Vic J. Woolnough ,  Peter D. Edwards

    Inventor： John J. Shorter ,  Vic J. Woolnough ,  Peter D. Edwards

    IPC: A61F2/50 ,  A61F2/64 ,  A61F2/68 ,  A61F2/74

    CPC classification number: A61F2/64 ,  A61F2/68 ,  A61F2002/5075 ,  A61F2002/745 ,  A61F2002/748

    Abstract: An artificial leg includes a knee mechanism having means for restricting knee flexing movement during the stance phase of the walking cycle. The restricting means includes a piston and cylinder assembly so coupled in the mechanism that the piston is movable in the cylinder with knee flexion and extension. The knee mechanism includes two chassis parts arranged to move relatively to each other when an axial load is applied to the limb. One end of the piston and cylinder assembly is connected to one of the chassis parts while the other chassis part engages a control member coupled to a valve inside the piston and cylinder assembly so that the valve is operated in response to relative load-dependent movements of the chassis parts in order to restrict the flow of fluid and thereby create resistance to knee flexion during the stance phase. The chassis parts are connected together by an anterior pivot joint and are resiliently moveable relative to each other according to applied load. The piston and cylinder assembly is also operable to resist movement during the swing phase of the walking cycle, and the interaction of the knee chassis parts with the control member is arranged so that movement of the member is reduced or does not occur at all for flexion angles greater than a predetermined value between 30.degree. and 40.degree..

    Abstract translation: 人造腿包括膝盖机构，其具有用于在行走周期的姿态阶段中限制膝部弯曲运动的装置。 限制装置包括活塞和气缸组件，该活塞和气缸组件联接在该机构中，使得活塞可在膝盖中弯曲和伸展时在气缸中移动。 膝盖机构包括当向肢体施加轴向负载时相对于彼此移动的两个底盘部件。 活塞和气缸组件的一端连接到一个底盘部件，而另一个底盘部件接合联接到活塞和气缸组件内的阀门的控制构件，使得阀门响应于相对负载依赖的运动而被操作 底盘部件以限制流体的流动，从而在姿态阶段产生对膝盖弯曲的抵抗力。 底盘部件通过前枢转接头连接在一起，并且可根据所施加的负载相对于彼此弹性移动。 活塞和气缸组件还可操作以抵抗在步行循环的摆动阶段期间的移动，并且膝部底盘部件与控制构件的相互作用被布置成使得构件的移动减少或完全不发生弯曲 角度大于30°至40°之间的预定值。

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