Construction for ultra-thin orthotic
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United States of America Patent
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Aug 15, 2000
Grant Date -
N/A
app pub date -
Mar 11, 1998
filing date -
Mar 11, 1998
priority date (Note) -
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Abstract
A thin orthotic insert having a rigid rearfoot plate and a flexible forefoot cushion which are joined together without requiring a separate top cover. A connection is formed by a slot at the forward edge of the plate which receives and holds the rearward edge of the cushion layer. The rearfoot plate may be formed as a laminated structure, with forward edges of the upper and lower laminate layers being separated to form the wall portions above and below the slot. To form the slot, a spacer is inserted between the edges of the layers and then withdrawn after molding/curing. Because the need for a top cushion is eliminated, very low thicknesses can be achieved, on the order of 1.5 mm. The device is particularly advantageous for use in women's high-heeled shoes, where interior volume is extremely limited.
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