Cruze Distribution, LLC — Department of Defense SBIR Phase I: AF211-CSO1

Description

Methods of reducing and treating knee injuries have changed with the development and improvement of knee braces over time. A significant problem, yet to be addressed in the current design of knee braces, are the number of people that experience performance limitations while braced. Most knee brace frames incorporate standard bilateral, polycentric hinges which provide a stabilizing force to the flexion and extension of the knee.  While this method attempts to mimic the joint’s natural movement, it falls short in allowing the knee the ability to internally and externally rotate.  During the last 30° of extension, the tibia or femur must externally or internally rotate, approximately 10°. While this rotation may seem small, it remains essential for healthy motion of the knee and maximal performance.  Rotation must occur to achieve full flexion and extension. If the tibia or femur is held in a fixed position, this can alter the mechanics of the knee and lead to an increased chance of injury. By eliminating the joint’s ability to rotate, the brace begins to fight against the joint’s true motion, decreasing the ability of the athlete to move with fluidity and increasing the risk of brace migration and injury.  Military personnel have suggested that the current knee braces are bulky and difficult to wear underneath their uniform and lead to a loss of performance. This technology seeks to significantly reduce migration, increase comfort, provide customizable sizing, and ultimately allow for optimal performance.