Exoskeleton and mounting arrangement

A mobility aid for use by a user having a lower body amputation site, the mobility aid including:

• a lower body exoskeleton being a free-standing electromechanical skeletal structure configured to be worn externally by the user and configurable to be fully supportive of the user, including:
• a pelvic support structure;
• a first leg and a second leg, each of the first and second legs movably coupled to the pelvic support structure, wherein at least the first and second legs are selectively actuable to move the lower body exoskeleton relative to a surface on which the mobility aid is positioned, wherein at least one of the first leg or the second leg includes a first guide that includes one or more rails;
• a carrier selectively positionable with respect to the lower body exoskeleton and, which in use, supports the user at or about an amputation site, wherein the first guide is adapted to receive and retain the carrier;
• and
• a harness system configured to, when in use, secure the user to the lower body exoskeleton;
• wherein the carrier includes:
• a first carriage portion configured to slidingly interface with the one or more rails of the first guide such that the carrier is slidable along the first guide and such that the carrier can be selectively positionable and releasably secured along the first guide in a first direction in a sagittal plane;
• a second carriage portion configured to be mounted to the first carriage portion and being laterally translatable on the first carriage portion, the second carriage portion including a second guide;
• and
• a third carriage portion slidingly receivable by the second guide, the third carriage portion being selectively positionable in a second direction in the sagittal plane, said second direction being perpendicular to the first direction, thereby the carrier being selectively positionable in at least two perpendicular axes in the sagittal plane.