Orthosis for footwear with positional self-adjustment

Details Orthosis for footwear with positional self-adjustment Orthosis for footwear with positional self-adjustment

A - Human Necessities

61

F

A61F 5/14 (2006.01) A43B 7/22 (2006.01)

Patent

CA 2358669

The orthosis is formed of a monolithic semi-rigid resilient shell and is engaged inside a footwear to conformingly fit against the plantar portion of a person's foot, extending from the anterior metatarsal region to the heel portion. The rear end portion of the orthosis has inner and outer rearwardly-extending resiliently deformable arms defining a rearwardly-opened notch therebetween for partial engagement of the heel in the notch. Upwardly arcuate inner and outer flanges are provided respectively on the inner and outer arms, opposite the notch, for forming a cup-like seat for the heel. The front end portion of the orthosis engages the metatarsal plantar region of the foot, and has a sinuous front edge having five frontwardly-facing arcuate concavities each for registering engagement thereagainst of a corresponding one of the five metatarsal anterior portions of the user's foot. The combination of the independently deformable arms forming a cup-like seat with the front edge concavities allow stabilization and positional self-adjustment of the orthosis inside the footwear, to compensate accidental positional shifts of the orthosis in the footwear.

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