Two kinds of large deflection plane folding hinges. named OSD-LEJ (outside-series-deployed lamina emergent joint) and IOSD-LEJ (inverted-outside-series-deployed lamina emergent joint). are designed with flexible segments arranged in series on the outside. taking into account the inverted design principle. https://www.roneverhart.com/Vive-Health-Dorsal-Night-Splint-Alleviates-Plantar-Fasciitis-Pain/