Orthosis Comprising a Mechanical Hip Link with Three Degrees of Freedom

An orthosis comprising:

• a mechanical hip link connecting a hip structure configured to be positioned facing a hip of a user;
• and
• a leg structure configured to receive a leg of the user,
• wherein the mechanical hip link comprises a frontal pivot link configured to allow rotation movement of the leg structure relative to the hip structure about a frontal pivot axis of the orthosis, a sagittal pivot link configured to allow rotation movement of the leg structure relative to the hip structure about a sagittal pivot axis of the orthosis and a transverse pivot link configured to allow rotation movement of the leg structure relative to the hip structure about a transverse pivot axis of the orthosis;
• wherein the sagittal pivot axis and the frontal pivot axis are concurrent;
• and
• wherein the transverse pivot link is composed of a plurality of pivot links connected two by two by connecting rods so as to form a virtual pivot link so that the transverse pivot axis intersects a volume delimited by the sagittal plane, by a plane normal to the frontal pivot axis and comprises the sagittal pivot axis, by the hip structure and by the leg structure.