Patent ID: 7500957
Filing Date: 2009-03-10
Classification: A61F

Abstract:
1. A dynamic brace comprising: an upper and a lower brace arm; at least one strap securing said brace arms to a leg; a central joint pivotally connecting said brace arms to allow said brace arms to pivot from a flexed to an extended position; a medial/lateral joint in each brace arm proximate to said central joint; two cams disposed between said medial/lateral joints, each said cam having first and second ends, an arcuate cam surface at said first end proximate to one of said medial/lateral joints, and a contact surface at said second end; said cams positioned so there is a distance between said cam surface and said medial/lateral joint; a stop block proximate to said medial/lateral joint in each brace arm and opposite from said arcuate cam surface, said stop block adapted to contact and slide along a segment of said cam surface, as said brace arms pivot from said flexed to said extended position; wherein each said cam surface is shaped such that as said stop block slides along said segment of said cam surface, said brace arm is dynamically inclined an amount toward said leg; wherein the length of said segment determines said amount said brace arms are dynamically inclined; an adjustment wheel disposed between said contact surfaces of said cams, said wheel adapted to equally adjust said distance of said cams from said medial/lateral joints; wherein said stop blocks slides along a longer segment of said cam surfaces when said cams are closer to said medial/lateral joints.