| 摘要 |
PCT No. PCT/SE91/00446 Sec. 371 Date Jan. 7, 1993 Sec. 102(e) Date Jan. 7, 1993 PCT Filed Jun. 20, 1991 PCT Pub. No. WO91/19467 PCT Pub. Date Dec. 26, 1991.An artificial leg has a femoral member (1); a lower-leg member (2) articulated to the femoral member about a knee joint axis (3') and adapted for connection to a prosthetic foot; and a hydraulic device (4) for controlling the knee joint functions of the artificial leg. The hydraulic device comprises a cylinder member (4a) which is articulated to the lower-leg member, and a piston rod (4b) which is articulated to the femoral member. The hydraulic device (4) is operated by an operating rod (11). The lower-leg member consists of an upper part (2a) which is articulated to the femoral member (1) and supports the hydraulic device (4) whose cylinder member (4a) is articulated to the upper part, and a lower part (2b) which is adapted for connection to the prosthetic foot and to which the operating rod (11) is connected. The upper part (2a) is articulated to the lower part (2b) about a pivot pin (13) located in front of the knee joint axis (3') to which it is parallel, to be pivoted relative to the lower member. Thus, the upper part (2a) is pivotable between a rear position in which the operating rod (11) acts upon the hydraulic device (4) for locking the pivotal movement of the upper part (2a) about the knee joint axis (3'), and a frontal position in which the operating rod (11) acts upon the hydraulic device (4) to release the locking.
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