Multicentric knee cage

A knee cage for supporting the knee comprising, in combination, a flexible cover having upper, lower and lateral edges and inner and outer surfaces, said cover including lateral portions, cover securing means mounted upon said cover adapted to secure said cover about the wearer's knee, loop means defined on said cover outer surface, hinge means defined upon said cover lateral portions upon said outer surface, said hinge means each comprising a pair of substantially rigid elongated elements having substantially flat inner ends, hook means defined upon said elements releasable affixing said elements to said outer surface loop means for selective positioning upon said cover lateral portions, and bearing plate means affixed to one of said element's inner ends pivotally interconnecting associated elements in a floating pivot multicentric manner.

A multicentric hinge for knee orthosis appliances comprising, in combination, first and second elongated substantially rigid elements each having a substantially flat inner end, a bearing plate affixed to said first element inner end is spaced parallel relationship thereto, said second element inner end being closely slidably supported between said first element inner end and said bearing plate whereby said second element is pivotally interconnected to said first element, a pair of spaced projections defined upon the inner end of said first element, a cavity defined upon the inner end of said second element, said projections extending within said cavity, and abutment surfaces defined within said cavity engageable by said projections limiting the extent of pivoting between said first and second elements.