Boots – shoes – and leggings – Boots and shoes – Shoe for cast on foot
Patent
1983-06-08
1985-10-15
Schroeder, Werner H.
Boots, shoes, and leggings
Boots and shoes
Shoe for cast on foot
36 81, 36 115, 128 835, 128 83, A61F 500, A43B 2100
Patent
active
045465576
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a shoe, more especially used as a post-operative shoe by convalescent patients who have undergone a surgical operation on the fore-foot (front part of the foot or metatarsus).
It is known that surgical operations on the fore-foot, which represent more than 75% of the operations carried out by foot surgeons, compel the patients not to put their weight on the operated fore-foot, at least during the first month of convalescence. On the other hand, the back part of the foot which is not painful may serve perfectly well as support point. All persons stricken with any affection of the fore-foot, not necessarily following a surgical operation, are moreover faced with this problem.
To resolve it, several possibilities are offered. One of them consists in not using the operated foot or the foot suffering from an affection at all and in walking with the help of sticks or crutches while putting one's weight on the other foot. Needless to say, this way of walking is very constraining and uncomfortable.
A second possibility consists quite simply in walking on the heel of the operated foot or the foot suffering from an affection, possibly by means of a molded plaster. In this case also, the walking position is very uncomfortable and may cause a lack of balance particularly with older people.
The difficulty of moving is aggravated when the surgical operation or the affection involves both feet.
The present invention proposes remedying these drawbacks and for this it provides a shoe, and more especially, a post-operative shoe which is characterized in that it comprises an upper open at the front, this upper being formed of two quarters for wrapping round the back part of the patient's foot and an inner sole resting on a sole substantially higher at the front than at the rear and this for example by about 1.5 cm.
With the particular structure of the upper of this shoe, the fore-foot extends completely outside the shoe which, because of the form of the sole, thicker at the front, holds the foot slightly sloping. Consequently, the operated forefoot or foot suffering from an infection is not subjected to any stress or strain caused by the shoe and, moreover, cannot come to bear on the ground during walking.
The front part of the sole may be shaped like a shock-absorbing wedge directed towards the front of the shoe. With this arrangement, the seating and the flexibility of the shoe is increased which confers on the patient a good balance while walking.
According to an important feature of the invention, the sole is compressible and has a degree of compressibility increasing from the rear to the front of the sole.
To this end, the sole comprises a hard pad on which the inner sole of the upper rests, the remaining part of the sole being made from an homogeneous compressible material, such as a synthetic cellular foam, latex or rubber.
Preferably, the pad and the compressible part of the sole are integrally molded. Furthermore, the sole carries on its walking surface a protection plate made of a hard material.
Because of the variable compressibility of sole 4, sudden stopping of the support of the rear part of the foot at the level of the front part of the shoe is avoided, which considerably improves the comfort of the patient when walking. Furthermore, the pad serves as an anti-shock protection for the foot.
According to another important feature of the invention, a base is placed between the sole and the inner sole of the upper, this base extending beyond the front edge of this latter by a flexible downwardly curved tongue, which stops along a curve corresponding to the Lisfranc interline of the patient's foot. This tongue allows partial folding of the foot during walking while leaving the metatarsian structure free.
Advantageously, the quarters of the upper are made from strong cloth and are of sufficient height to wrap round the rear part of the patient's foot to above the peroneo-tibial malleoli. The upper thus holds the patient's foot perfectly in position to participate efficiently in the s
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patent: 2509821 (1950-05-01), Holstrom
patent: 2725648 (1955-12-01), Kirk et al.
patent: 3421517 (1969-01-01), Sabel
patent: 3584402 (1971-06-01), Silverman
patent: 3905135 (1975-09-01), Debusk
patent: 4178703 (1979-12-01), Pols
patent: 4446856 (1984-05-01), Jordan
Barouk Louis S.
Mayzaud Maurice P.
Etablissements Mayzaud Maurice
Meyers Steven N.
Schroeder Werner H.
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