Surgery – Truss – Perineal
Patent
1990-11-30
1992-09-22
Apley, Richard J.
Surgery
Truss
Perineal
482 79, 128 25R, A61H 102
Patent
active
051488000
DESCRIPTION:
BRIEF SUMMARY
The invention relates to the technical domain of articulatory mobilization, with a view to the orthopaedic correction of the foot in the new-born baby and the child.
The apparatus makes it possible to mobilize a foot or the two feet, simultaneously, in the three perpendicular planes in space.
The definition of the movements of the body and of those of the foot is conventionally effected with respect to three perpendicular planes in space, which are illustrated in FIG. 1. It is question of:
These three planes determine three axes of mobilization A--A', B--B- and C--C' which may be related to the articulations of the foot, as is known in FIG. 2.
Axis A--A' is that of the dorsal flexion-plantar flexion of the foot, as schematically shown in FIG. 3. The flexion is called dorsal when the dorsal face of the foot approaches the anterior face of the leg. The flexion is called plantar when the dorsal face of the foot moves away from the anterior face of the leg. The foot is then called in equinus.
Axis B--B' is that of the supination-pronation or varus-valgus, as shown in FIG. 4. The foot is called in varus or supination when the sole of the foot faces the median axis of the body. The foot is called in valgus or pronation when the sole of the foot faces laterally.
Axis C--C' is that of abduction-adduction, illustrated in FIG. 5. The foot is called in adduction when its antero-posterior longitudinal axis is directed towards the median axis of the body. The foot is called in abduction when its longitudinal axis moves away from the median plane of the body.
Anatomical malformations of the foot are frequently encountered, particularly talipes equinus, i.e. naturally adopting a position in adduction, in varus and in equinus. Such combined malformations are, in 50% of the cases, bilateral. It is considered that such malformations may be corrected, at least partly, by continuous passive articulatory mobilization.
PRIOR ART
A so-called mechano-therapy apparatus is known which allows active or active-passive mobilization of the foot in the three perpendicular axes in space. This so-called Franco apparatus does not come within the framework of the continuous passive articulatory mobilization.
Apparatus for positioning the foot with a view to orthopaedic correction are known. Such apparatus do not come within the scope of continuous passive articulatory mobilization either.
Apparatus for continuous passive mobilization of the foot are also known. Such so-called Mobilimb apparatus, marketed by the firm TORONTO MEDICAL Co., mobilize the foot only in dorsal flexion-plantar flexion.
Finally, Patent Application FR 88-09701 discloses an apparatus for continuous passive mobilization of the foot on the three axes A--A', B--B' and C--C' This apparatus makes it possible to mobilize only one foot at a time. Simultaneous treatment, symmetrical or not, of the two feet is therefore excluded.
The second drawback presented by this apparatus resides in the fact that, the second foot not being connected during the correction phase of the first, the child conserves the possibility of effecting movements of rotation or creep which risk cancelling the desired orthopaedic correction.
The object of the invention is to overcome the above drawbacks by proposing a novel apparatus designed to fill in the gaps of the existing apparatus and to allow, on the contrary, the mobilization equally well of one foot or of the two feet simultaneously.
One of the objects of the present invention is to offer a mobilization apparatus making it possible, in the case of one foot having to be mobilized, to conserve the other foot connected to the apparatus, whatever the movements of the child, and enabling the lower limbs to be placed in a symmetrical position allowing a correcting mobilization.
The apparatus according to the invention is, in addition, designed so that it may either be placed on a base or be suspended. In the latter case, the child may effect active movements of flexion-extension of the lower limbs, which allows his/her muscular system to be maintai
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"Bowen Fractive Appliances" Advertisement; Journal of Bone & Joint Surgery, vol. 46-A, #3, Apr. 1964.
Apley Richard J.
Dvorak Linda C. M.
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