Surgery – Truss – Pad
Patent
1990-01-10
1991-05-14
Burr, Edgar S.
Surgery
Truss
Pad
36 43, A61F 514, A43B 1338
Patent
active
050147064
ABSTRACT:
An orthotic insole has an outline resembling that of a foot. The portions of the insole corresponding to the calcaneus, first metatarsal head, fifth metatarsal head and toes consist of elastically deformable material having a relatively low first hardness. The portion of the insole corresponding to the lateral longitudinal arch consists of elastically deformable material having a second hardness greater than the first hardness. Alternatively, such portion is provided with a cavity at the underside thereof. The portion of the insole corresponding to the medial longitudinal arch is formed with a recess which receives an elastically deformable, interchangeable, wedge-like supporting member. The portion of the insole which corresponds to the area extending back from the metatarsal arch between the lateral and medial longitudinal arches consists of elastically deformable material having a third hardness greater than the first and second hardnesses. The wedge-like supporting member has a hardness which can be greater than, equal to or less than the third hardness but exceeds the first hardness.
REFERENCES:
patent: 2863231 (1958-12-01), Jones
patent: 3275002 (1966-09-01), Scholl
patent: 3903621 (1975-09-01), Dubner
patent: 4408402 (1983-10-01), Looney
patent: 4633877 (1987-01-01), Pendergast
patent: 4841648 (1989-06-01), Shaffer et al.
Burr Edgar S.
C. Nicolai GmbH & Co. KG
Cohen Moshe I.
Kontler Peter K.
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