Footwear orthosis

Abstract

A footwear orthosis including a sole member having a tread surface and an inner surface, and a partly open upper member designed to be anchored to the sole member and arranged removably to secure a user's foot thereto, wherein the tread surface is substantially uninterruptedly flat and at least partly outwardly convex.

1 . A footwear orthosis including a sole member comprising a tread surface and an inner surface, and a partly open upper member designed to be anchored to said sole member and arranged removably to secure a user's foot thereto, wherein said tread surface is substantially uninterruptedly flat and at least partly outwardly convex:  
     
     
         2 . A footwear orthosis as claimed In  claim 1 , wherein said tread surface comprises at least one intermediate flat portion and at least one outwardly convex front and/or rear portion, whereby said tread surface can roll on the ground between a touch down position in which said rear portion comes into contact with the ground through out said intermediate portion, and a take off position at said front convex portion.  
     
     
         3 . A footwear orthosis as claimed in  claim 1 , further comprising an intermediate insole reinforcing member locatable on said inner surface of said sole member.  
     
     
         4 . A footwear orthosis as claimed in  claim 3 , wherein said intermediate insole comprises a lattice structure at the surface thereof designed to contact said inner surface of said sole member.  
     
     
         5 . A footwear orthosis as claimed in  claim 4 , wherein said intermediate insole is obtained by molding a relatively stiff or rigid material.  
     
     
         6 . A footwear orthosis as claimed in  claim 5 , wherein said intermediate insole is obtained by molding antibacterial acrylonitrile butadiene styrene.  
     
     
         7 . A footwear orthosis as claimed in  claim 1 , wherein said upper member comprises removable securing means to a user's foot.  
     
     
         8 . An insole element for a footwear orthosis comprising at least two portions mutually engageable in a puzzle-like manner.  
     
     
         9 . An insole element as claimed in  claim 8 , wherein each portion has a different density value.  
     
     
         10 . An insole element as claimed in  claim 8 , wherein each portion is made of suitable plastics material.  
     
     
         11 . A footwear orthosis as claimed in  claim 3 , wherein said intermediate insole comprises a relatively stiff or rigid material.  
     
     
         12 . A footwear orthosis as claimed in  claim 4 , wherein said intermediate insole comprises a relatively stiff or rigid material.  
     
     
         13 . A footwear orthosis as claimed in  claim 3  wherein the intermediate insole comprises antibacterial acrylonitrile butadiene styrene.  
     
     
         14 . A footwear orthosis as claimed in  claim 4  wherein the intermediate insole comprises antibacterial acrylonitrile butadiene styrene.  
     
     
         15 . A footwear orthosis as claimed in  claim 11  wherein the intermediate insole comprises antibacterial acrylonitrile butadiene styrene.  
     
     
         16 . A footwear orthosis as claimed in  claim 12  wherein the intermediate insole comprises antibacterial acrylonitrile butadiene styrene.