Patent ID: 9089402
Filing Date: 2015-07-28
Classification: A61F,A61H

Abstract:
1. An orthotic joint comprising: (a) an upper plate; (b) a lower plate; (c) a cover plate; (d) back plate; (e) a first link; (f) a second link; (g) a coil spring that is situated between the lower plate and first link, wherein the coil spring comprises a first end, and wherein as the joint is flexed, the first end of the coil spring travels along a first arcuate edge of the first link; and (h) an extension stop that is situated adjacent to the first link; wherein a first pin pivotally connects the first link to the upper plate, and a second pin pivotally connects the first link to the back plate; wherein a third pin pivotally connects the second link to the upper plate, and a fourth pin pivotally connects the second link to the back plate; and wherein the upper plate is attached to an upper leg brace, the lower plate is attached to a lower leg brace, the upper leg brace is attached to at thigh support, and the lower brace as attached to a calf support; further comprising a cable with a first end and a second end, wherein the cable is secured to the upper and lower leg braces, and wherein the first end of the cable is attached to a first cable clevis, and the second end of the cable is attached to a second cable clevis; wherein the second link comprises a first end portion and a second end portion, and wherein the first cable clevis is pivotally attached to the second link such that when the cable is pulled downward, the first end portion of the second link rotates downward, and the second end portion of the second link rotates outward; wherein when the second end portion of the second link rotates outward, the upper plate moves in an outward direction; wherein the first link comprises a lint end portion and a second end portion, and when the upper plate moves in an outward direction, the first end portion of the first link rotates upward, and the second end portion of the first link rotates downward; wherein the second cable clevis is pivotally attached to a stirrup; and wherein the stirrup is attached to a foot support and an ankle bracket.