UNIT OF MAIN INSOLE FOR CHILDREN'S PROPHYLACTIC FOOTWEAR Russian patent published in 2010 - IPC A61F5/14 A43B17/00 A43B17/14 A43B17/16 

FIELD: personal use articles.

SUBSTANCE: invention relates to footwear industry and orthopaedic devices, namely, to design of main insole unit, and may be used in production of footwear and prosthetic-orthopaedic items. Unit of the main insole for children's prophylactic footwear includes upper and lower layers. Upper layer consists of foamed thermoplastic material shaped in process of wearing - copolymer of ethylene and vinyl acetate with density of 0.35-0.40 g/cm³ and Shore hardness of 40-50 c.u. The lower layer is made from dense cardboard. The upper layer is made with hollow in heel part under calcanean tuber in section 0.18 D, and in waist area - with even arrangement of internal and external arches with highest point in area of calcaneocuboid joint in section 0.36 D.

EFFECT: invention provides for proper setting of foot, helps to turn front edge of calcaneus in sagittal plane and thus creates conditions for formation of its arches, providing for prophylactics of static deformations of feet in children.

6 dwg