Patent ID: 8262594

Claim:
A device to protect a body part from overextension, comprising: at least one reinforcement spine comprising a first end, a second end, a front side and a back side, wherein the at least one reinforcement spine can flex forwardly toward the front side in response to a bending load free of substantial resistance, wherein the at least one reinforcement spine does not impair a flexing of the body part forwardly, the at least one reinforcement spine being substantially inflexible rearwardly toward the back side, substantially beyond an unflexed position, to oppose an overextension force; and a plate comprising an upper surface and a lower surface, wherein the front side of the second end of the at least one reinforcement spine slidably engages the upper surface of the plate, whereby the overextension force exerted on the at least one reinforcement spine is transferred to the plate, wherein the front side of the second end of the at least one reinforcement spine slides along a path relative to the upper surface of the plate when the overextension force exerted on the at least one reinforcement spine is transferred to the plate.