Adjustable orthosis joint for the controlled movement and/or fixation of a hand, and orthosis having an orthosis joint of this kind

Adjustable orthesis joint (10) for the controlled movement and/or fixation of a hand of a patient, comprising at least

• a first pivot lever (15) for performing an extension and/or flexion movement of the hand;
• a second pivot lever (16), arranged pivotably on the first pivot lever (15), for performing an ulnar and/or radial deviation of the hand;
• the orthesis joint (10) comprises
• a fastening element (12) for pivotable fastening of the first pivot lever (15);
• a first, upper angle adjustment element (11), which during use is arranged in relation to the back of a hand above the fastening element (12), rotatably about a rotation axis (D1), on the fastening element (12);
• and
• a second, lower angle adjustment element (13), which during use is arranged in relation to the back of a hand below the fastening element (12), rotatably about the rotation axis (D1), on the fastening element (12);
• the first angle adjustment element (11) and the second angle adjustment element (13) each comprising at least one pivot limitation (111;
• 131), which limit the extension and/or flexion movement of the first pivot lever (15) in its range of movement.