公开(公告)号：EP2124843A1

公开(公告)日：2009-12-02

申请号：EP07848527.3

申请日：2007-12-14

申请人： CHAS. A. BLATCHFORD & SONS LIMITED

发明人： MOSER, David ,  ABIMOSLEH, Fadi ,  ZAHEDI, Mir Saeed ,  HARRIS, Graham ,  LANG, Stephen Terry ,  SYKES, Andrew

IPC分类号： A61F2/66 ,  A61F2/68

CPC分类号： A61F2/6607 ,  A61F2/68 ,  A61F2002/30359 ,  A61F2002/5003 ,  A61F2002/5006 ,  A61F2002/5033 ,  A61F2002/5043 ,  A61F2002/6621 ,  A61F2002/6642 ,  A61F2002/6657 ,  A61F2002/6854 ,  A61F2002/705 ,  A61F2002/707 ,  A61F2002/74 ,  A61F2002/745 ,  A61F2002/748 ,  A61F2220/0033

摘要： A self-aligning prosthetic foot and ankle assembly has an ankle unit (16) pivotally mounting a foot component (10). The ankle unit contains an hydraulic piston and cylinder assembly having a piston (28) which is linearly movable within a cylinder (26). The axis of the cylinder is coincident with a shin axis defined by a shin connection interface (20) on the ankle unit. Bypass passages (36) containing damping resistance control valves provide continuous hydraulic damping of dorsi and plantar ankle flexion, the unit being such that, over the major part of the range of damped movement, there is no resilient biasing in either the dorsi or the plantar direction. This confers a number of advantages, including stabilisation of standing, balance control, and improved stair-walking and ramp-walking.

摘要翻译： 自对准假脚和脚踝组件具有枢转地安装脚部件的脚踝单元。 脚踝单元包括液压活塞和气缸组件，其具有在气缸内可直线移动的活塞。 圆柱体的轴线与由踝单元上的胫骨连接界面限定的胫骨轴线重合。 包含阻尼阻力控制阀的旁路通道提供背部和足底踝屈曲的连续液压阻尼，该单元使得在阻尼运动范围的主要部分，在背侧或足底方向上不存在弹性偏置。 这具有许多优点，包括稳定站立，平衡控制，以及改进的楼梯步行和斜坡行走。