| 主权项 |
1. A knee orthosis comprising:
an upper part and a second lower part, said parts each being provided with at least one attachment means which links support components and is suitable for fixing said parts respectively to a thigh and to a leg of a lower limb of a person presenting an abnormal initial lateral deviation, and with a circular general shape that is adaptable respectively to said thigh and to said leg and with the same axis respectively (X1) and (X2) as those, and such that they thus follow the movement of this thigh and of this leg, said two parts being connected via bi-centric articulation means which are intended to be positioned laterally on each side of the knee and are designed to allow the upper part and lower part to each pivot about a common axis between the ends of the support components thereof and an intermediate component forming a connection rod of the corresponding articulation means wherein the orthosis has a cable linking the common axis, between the connection rod of the articulation means, corresponding to the side of the orthosis opposite the initial deviation (γ), and the upper part of the orthosis, to the distal end of an arm forming one of the support components of the lower part of the orthosis and arranged in a direction almost parallel to the axis (X2) thereof, the length of the cable being determined such that it exerts a given traction on the attachment points of its two ends when the upper part and lower part are pivoted in relation to each other in the sense of tending toward the alignment of their axes (X1, X2) and, on the contrary, is untensioned when the upper part and lower part are pivoted in the opposite sense. |
