FR2877834A1 - Orthosis for correcting inborn talipes equinovarus, has central hinge connected to lateral hinges that are integrated to corresponding supports permitting fixation of sandals receiving foot of child, in determined angular position - Google Patents

Abstract

The orthosis has a central hinge (4) connected to lateral hinges (18, 32) by corresponding connecting rods (11, 12, 16, 17) which freely rotate around corresponding fixation axles. The hinges (18, 32) are integrated to respective supports (28, 42) permitting fixation of corresponding sandals (2, 3) receiving the foot of a child (E), in a determined angular position. Each hinge has plates connected by a flexible and elastic connection.

Description

ORTHOPEDIC APPARATUS

FOOT-BOT CORRECTION

  The present invention relates to an orthopedic device for the correction of congenital equine varus clubfoot, known under the name of splints of Denis BROWNE.

  French patent FR 1405926 discloses an orthopedic device for correcting the club foot comprising two flat rods of equal length joined to one another and whose one end has a flat surface perpendicular to the plane of the stems. .

  The two rods are assembled and immobilized, after adjustment in a given angular position, by means of a screw passing through both surfaces and a clamping nut.

  At the free end of the first and second flat rods is respectively fixed a so-called conventional splint and a so-called correction splint connected to the corresponding rod by a threaded shaft and a clamping nut.

  The so-called conventional splint has only an angular adjustment around the threaded axis relative to the first flat shaft of the orthopedic correction device.

  The so-called correction splint includes a rear portion, which is angularly adjustable about the threaded axis allowing its attachment to the second flat shank, and a front portion angularly adjustable relative to said rear portion around an arcuate sector. circle.

  Note that the splints rotate only in planes that are parallel to those containing the flat rods after angular adjustment of the latter.

  The purpose of the orthopedic apparatus according to the present invention is to allow all degrees of freedom, except rotations, when correcting a club's clubfoot.

  The orthopedic device for correcting a clubfoot of a child according to the present invention comprises a first central hinge connected to two other lateral hinges by means of connecting rods which are respectively free to rotate about fixing axes, said second and third lateral hinges being each secured to a support for fixing in a given angular position of a sandal for receiving the corresponding foot of the child.

  The orthopedic apparatus according to the present invention comprises hinges which each consist of two plates interconnected by a flexible and elastic connection.

  The orthopedic device according to the present invention comprises a central hinge of which each plate is pierced with through holes which are traversed by fixing pins cooperating respectively with the first end of a connecting rod.

  The orthopedic apparatus according to the present invention comprises a second and third lateral hinge of which one of the plates is pierced with through holes which are traversed by fixing pins cooperating respectively with the second end of each connecting rod so that said connecting rods. link allow on the one hand to connect the central and lateral hinges together and on the other hand to position the plates of each hinge in parallel planes during the rotation of said connecting rods around the axes.

  The orthopedic device according to the present invention comprises a second and third lateral hinge whose other plate is pierced with through holes which are traversed by fixing pins for the immobilization of a support extending in the extension of said platen. .

  The orthopedic device according to the present invention comprises a second and third lateral hinge, each support of which is pierced on the one hand with a first hole and on the other hand with two rows of holes respectively arranged in an arc of a circle of different radius r and r 'and whose center of each ray is marked by the first hole.

  The orthopedic device according to the present invention comprises at least one sandal comprising a thick sole.

  The orthopedic apparatus according to the present invention comprises, on each support of the second and third lateral hinges, a sandal which is fixed on the one hand by a first self-tapping screw passing through the first hole to anchor in the sole at of the heel of the child's foot and secondly by two other self-tapping screws, passing through a hole of each row disposed in an arc, after the adjustment of the external rotation of the child's foot relative to the support, to anchor in the sole at the forefoot of the child's foot.

  The following description with reference to the accompanying drawings, given by way of non-limiting example, will provide a better understanding of the invention, the characteristics that it presents and the advantages that it is likely to provide: Figure 1 is a view in perspective from below illustrating the orthopedic apparatus according to the present invention.

  Figure 2 is a perspective view from above showing the orthopedic apparatus in a different use position.

  Figure 3 is a side perspective view showing the orthopedic apparatus 50 in another position of use.

  Figures 4 to 6 are perspective views showing the orthopedic device attached to the feet of a child for rehabilitation.

  FIGS. 1 to 3 show an orthopedic device 1 allowing correction of the club foot by allowing all degrees of freedom, except for rotations, when the latter is fixed via sandals 2, 3 at the feet of a child E. The orthopedic device 1 consists of a first central hinge 4 formed of two plates 5, 6 interconnected by a flexible and elastic connection 7 allowing, according to the position of the orthopedic device 1, a controlled pivoting of the hinge 4.

  The central hinge 4 is provided to bend in opposite directions but with different degrees of freedom depending on the direction of rotation.

  The plate 5 of the central hinge 4 is pierced with through holes 8, at least two of which are traversed by fixing pins 9, 10, cooperating respectively with the first end of a connecting rod 11, 12.

  The connecting rods 11, 12 are retained on the hinge 4 while maintaining a certain freedom of movement with respect to the rotation of each connecting rod around the corresponding fastening axis 9, 10.

  In the same way, the plate 6 of the central hinge 4 is pierced with through holes 13, at least two of which are traversed by fixing pins 14, 15 cooperating respectively with the first end of a connecting rod 16, 17.

  The connecting rods 16, 17 are retained on the hinge 4 while maintaining a certain freedom of movement with respect to the rotation of each connecting rod about the corresponding fixing axis 14,15.

  The orthopedic device 1 comprises two other lateral hinges 18, 32 formed of two plates 19, 20 and 33, 34 interconnected by a flexible and elastic connection 21, 35 allowing, according to the position of the orthopedic device 1, a pivoting controlled from said hinge.

  The first plate 19 of the second lateral hinge 18 is pierced with through holes 22, at least two of which are traversed by fixing pins 23, 24 cooperating respectively with the second end of each connecting rod 11, 12.

  The connecting rods 11, 12 are retained on the second lateral hinge 18 45 while maintaining a certain freedom of movement with respect to the rotation of each connecting rod around the fastening axis 23, 24 corresponding.

  The link rods 11, 12 allow on the one hand to connect the central hinge 4 and the second lateral hinge 18 between them and on the other hand to position the plates 5 and 19 of said hinges 4 and 18 in parallel planes during the rotation said connecting rods around the fixing pins 9, 10 and 23, 24.

  Also, the rods 11, 12 are positioned in parallel planes making it possible to constitute, with the plates 5 and 19 of the hinges 4, 18, a deformable parallelogram during the setting in motion of the orthopedic apparatus 1.

  The other plate 20 of the second lateral hinge 18 is pierced with through holes 25, at least two of which are traversed by fixing pins 26, 27 for the immobilization of a support 28 extending in the extension of said platen. .

  The support 28 is pierced on the one hand with a first hole 29 and on the other with two rows of holes 30, 31 respectively arranged in an arc of a different radius r and r 'and whose center of each radius is located by the first hole 29.

  The first plate 33 of the third lateral hinge 32 is pierced with through holes 36, at least two of which are traversed by fixing pins 37, 38 cooperating respectively with the second end of each connecting rod 16, 17.

  The link rods 16, 17 are retained on the third lateral hinge 32 while maintaining a certain freedom of movement with respect to the rotation of each connecting rod around the corresponding fixing axis 37, 38.

  The connecting rods 16, 17 allow on the one hand to connect the central hinge 4 and the third lateral hinge 32 between them and on the other hand to position the plates 6 and 33 of said hinges 4 and 32 in parallel planes during rotation said connecting rods about the attachment axes 14, 15 and 37, 38.

  Also, the connecting rods 16, 17 are positioned in parallel planes making it possible to form, with the plates 6 and 33 of the hinges 4, 32, a deformable parallelogram during the setting in motion of the orthopedic device 1.

  The other plate 34 of the third lateral hinge 32 is pierced with through holes 39, at least two of which are traversed by fixing pins 40, 41 allowing the immobilization of a support 42 identical to that 28 and extending into the extension of said platen.

  The support 42 is pierced on the one hand with a first hole 43 and on the other hand with two rows of holes 44, 45 respectively arranged in an arc of different radius r and r 'and whose center of each radius is marked by the first hole 43.

  FIGS. 4 to 6 show the supports 28, 42 of the orthopedic device 1 which are designed to receive a sandal 2, 3 in which the foot of the corresponding child E is held.

  Each sandal 2, 3 is fixed on the support 28, 42 corresponding in a determined position and controlled according to the correction to be made to the foot of the child E. Each sandal 2, 3 comprises a thick sole 46 in which is screwed self-tapping screws 47 passing through the holes 29, 30, 31 and 43, 44, 45 of each support 28, 42.

  Fixing the first sandal 2 on the support 28 secured to the second lateral hinge 18 is obtained by a first screw 47 through the first hole 29 to be anchored in the sole 46 at the heel of the foot of the child E. Also, the attachment of the sandal 2 on the support 28 of the second lateral hinge 18 is completed by two other screws 47, passing through a hole 30, 31 of each row arranged in an arc of a circle, after the adjustment of the external rotation the foot of the child E with respect to the support 28, to be anchored in the sole 46 at the arch of the foot of the child E. In the same way the other sandal 3 is fixed on the support 42 of the third lateral hinge 32 by a first screw 47 passing through the first hole 43 to be anchored in the sole 46 at the heel of the foot of the child E. Also, the attachment of the sandal 3 on the support 42 of the third lateral hinge 32 is completed by two other screws 47, passing through a hole 44, 45 of each row arranged in an arc of a circle, after the adjustment of the external rotation of the foot of the child E relative to the support 42, to become anchored in the soleplate 46 at the arch of the foot of the child E. It is noted that the orthopedic apparatus 1 according to the present invention allows to connect the feet of a child E to allow the correction of one or both feet while allowing the child the opportunity to move the legs in movements that are controlled and limited in space.

  It can be seen that the orthopedic device 1 does not allow the child E to move his feet in rotation because the latter are held in the sandals 2, 3 integral with the supports 28, 42 of the second and third lateral hinges 18, 32 of said apparatus .

  It must also be understood that the foregoing description has been given by way of example only and that it in no way limits the scope of the invention from which it would not go out by replacing the details of embodiments described. by any other equivalent.

Claims (13)

  Orthopedic appliance for the correction of the clubfoot of a child E, characterized in that it comprises a first central hinge (4) connected to two other lateral hinges (18, 32) by means of connecting rods ( 11, 12; 16, 17) which are respectively free to rotate about fixing pins (9, 10, 14, 15; 23, 24, 26, 27), said second and third lateral hinges (18, 32) being secured each of a support (28, 42) for fixing in a specific angular position of a sandal (2, 3) for receiving the corresponding foot of the child E. 2. Orthopedic device according to claim 1, characterized in that each hinge (4, 18, 32) consists of two plates (5, 6; 19, 20; 33, 34) interconnected by a flexible and elastic connection ( 7; 21; 35).   3. Orthopedic device according to claim 2, characterized in that the plate (5) of the central hinge (4) is pierced with through holes (8) which are traversed by fixing pins (9, 10) cooperating respectively with the first end of a connecting rod (11, 12).   4. Orthopedic device according to claim 2, characterized in that the plate (6) of the central hinge (4) is pierced with through holes (13) which are traversed by fixing pins (14, 15) cooperating respectively with the first end of a connecting rod (16, 17).   5. Orthopedic device according to claim 2, characterized in that the first plate (19) of the second lateral hinge (18) is pierced with through holes (22) which are traversed by fixing pins (23, 24) respectively cooperating with the second end of each connecting rod (11, 12) so that said connecting rods (11, 12) allow on the one hand to connect the hinges (4, 18) between them and on the other hand to position the plates (5, 19) in parallel planes during the rotation of said rods about the attachment axes (9, 10 and 23, 24).   6. Orthopedic device according to claim 2, characterized in that the first plate (33) of the third lateral hinge (32) is pierced with through holes (36) which are traversed by fixing pins (37, 38) respectively cooperating with the second end of each connecting rod (16, 17) so that said connecting rods (16, 17) allow on the one hand to connect the hinges (4, 32) between them and on the other hand to position the plates (6, 33) in parallel planes during the rotation of said rods about the attachment axes (14, 15 and 37, 38).   Orthopedic device according to claim 2, characterized in that the other plate (20) of the second lateral hinge (18) is pierced with through-holes (25) which are traversed by fixing pins (26, 27) enabling immobilizing a support (28) extending in the extension of said platen.   8. Orthopedic device according to claim 2, characterized in that the other plate (34) of the third lateral hinge (32) is pierced with through holes (39) which are traversed by fixing pins (40, 41) allowing immobilizing a support (42) extending in the extension of said platen.   9. Orthopedic device according to claim 7, characterized in that the support (28) integral with the second lateral hinge (18) is pierced on the one hand with a first hole (29) and on the other hand with two rows of holes (30, 31) respectively disposed in an arc of different radius r and r 'and whose center of each spoke is marked by the first hole (29).   10.An orthopedic appliance according to claim 8, characterized in that the support (42) secured to the third lateral hinge (32) is pierced on the one hand with a first hole (43) and on the other hand with two rows of holes (44, 45) respectively disposed in an arc of different radius r and r 'and whose center of each ray is marked by the first hole (43).   11.An orthopedic appliance according to claim 1, characterized in that each sandal (2, 3) comprises a thick sole (46).   12.An orthopedic appliance according to any one of claims 1 to 11, characterized in that the fixing of the first sandal (2) on the support (28) of the second lateral hinge (18) is performed, on the one hand by a first self-tapping screw (47) passing through the first hole (29) to anchor in the sole (46) at the heel of the foot of the child E and secondly by two other self-tapping screws ( 47), passing through a hole (30, 31) of each row arranged in an arc of a circle, after the adjustment of the external rotation of the foot of the child E relative to the support (28), to anchor in the soleplate (46) at the foot arch of the child's foot E. 13.An orthopedic appliance according to any one of claims 1 to 11, characterized in that the fixing of the second sandal (3) on the support (42) of the third lateral hinge (32) is carried out on the one hand by a first self-tapping screw (47) passing through the first hole (43) to anchor in the sole (46) at the heel of the foot of the child E and secondly by two other self-tapping screws (47). ), through a hole (44, 45) of each row disposed in an arc, after the adjustment of the external rotation of the foot of the child E relative to the support (42), to come to anchor in the sole ( 46) at the foot arch of the child's foot E.