A - Human Necessities – 43 – B
Patent
A - Human Necessities
43
B
36/18
A43B 7/28 (2006.01)
Patent
CA 1048779
ABSTRACT The invention relates to a device for correcting the posture of a human foot. Unlike custom-made devices, which are made by a specialist to conform to the patient's foot, the device of the invention may be mass- produced and sold in standard sizes. The device is adapted for placement upon or within a foot-supporting insole structure and comprises an elongated substantially rectangular pad having a first area of substantially uniform thickness and a second area of a relatively greater thickness. A rearward end region of the pad is part of said first area of substantially uniform thickness and is adapted to support a medial inner one third of the calcaneous bone of the foot. A forward end region containing said second area of re- latively greater thickness is adapted to support the surgical neck region of the first metatarsal bone of the foot. The thickness of said first area is such that the calcaneous bone is tilted at an angle of between 2 1/2° and 8 1/4° with respect to the major plane of the insole structure and the forward region of the foot containing the surgical neck regions of the metatarsal bones is tilted through an additional 1 1/2° to 6 1/2°. Preferably, the thickness of said first area is sufficient to tilt the calcaneous bone through an angle of 4 1/2° and the thickness of said second area is sufficient to tilt the forward region of the foot through an additional 2 1/2°.
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