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1. 发明申请

WO2013088142A9 A LOWER LIMB PROSTHESIS 审中-公开
公开(公告)号：WO2013088142A9
公开(公告)日：2013-06-20
申请号：PCT/GB2012/053106
申请日：2012-12-12
申请人： BLATCHFORD PRODUCTS LIMITED
发明人： ZAHEDI, Mir Saeed , STECH, Nadine , MOSER, David , SYKES, Andrew John
IPC分类号： A61F2/68
摘要： 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.

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