Segmented Orthosis with Hinged Plates for Lower Limb Contracture Treatment

The orthosis is divided into multiple independent sections including toe sections, metatarsal sections, midfoot sections, and ankle sections. Each section can move independently through hinges and pivots, allowing the device to maintain alignment stability while providing flexibility for natural foot movement during walking.

The orthosis transitions from a static rigid structure to a dynamic articulated structure with multiple movable joints. The hinges at the metatarsal-midfoot interface and the pivot at the ankle allow dynamic adaptation to walking motions, improving both comfort and functional flexibility while maintaining corrective alignment.

The device replaces complete immobilization with controlled dynamic stability. The articulated structure with hinges and pivots allows necessary movements for walking while maintaining corrective positioning, significantly improving comfort and willingness to use the device long-term.

Different sections of the orthosis have different degrees of freedom and mobility. The toe sections allow independent movement, the midfoot section provides structural support, and the ankle section allows controlled rotation. This localized differentiation of rigidity and flexibility improves comfort while maintaining necessary stability.

The orthosis enables continuous passive and active movement through its articulated design. As the user walks, the hinges and pivots facilitate natural foot and ankle motions, preventing fluid stagnation and maintaining joint flexibility while gradually correcting alignment through repeated movement cycles.

The device provides continuous corrective action during walking rather than requiring stationary bracing. The alignment correction occurs continuously through the repetitive motion of walking, which simultaneously prevents harmful effects like fluid stagnation and joint stiffness.

The orthosis uses a segmented modular design with standardizable components such as hinges, pivots, and adjustable straps. This segmentation allows for effective treatment through precise positioning while reducing overall complexity by breaking down the device into manageable, potentially pre-fabricated modules.

The articulated structure with hinges and pivots serves multiple functions: it provides alignment correction, enables natural walking motion, allows adjustment for different foot types, and facilitates both passive and active movement. This multi-functionality reduces the need for multiple separate devices, simplifying the overall treatment system.