Patent ID: 8708939

Claim:
An orthosis for supination and/or pronation of a forearm of a wearer, the orthosis comprising: a base; an upper arm support coupled to the base and configured to secure an upper arm of the wearer; a rotation assembly coupled to the base and including an output member rotatable relative to the base within a rotational plane; a forearm support member coupled to the output member of the rotation assembly, wherein the forearm support member has a contour sized to receive a thumb of the wearer and positioned such that the forearm support is configured to substantially align a styloid process of the wearer with the rotation& plane of the rotation assembly; and wherein the rotational plane of the rotation assembly bisects a central axis, of the rotation assembly, at a point proximate said output member such that the rotational plane of the rotation assembly passes perpendicularly through said output member relative to said central axis.