| 摘要 |
A protective device for a joint, particularly for a knee, comprising a first frame to which a second frame is articulated by means of a pair of hinges that during use are arranged proximate to the two sides of the joint, the hinges being constituted by a first base and a second base, which are associated respectively with the first and second frames and are rotatably connected to each other by means of a first arm and a second arm, which are mutually crossed. The ends of the first arm are rotatably associated with the first and second bases, both by means of substantially hemispherical mutual engagement surfaces; one end of the second arm is associated rotatably with the first base by means of a substantially hemispherical mutual engagement surface and the other end of the second arm is associated with the second base by means of a substantially flat mutual engagement surface.
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