DK2381809T3

DK2381809T3 - Orthopaedic module

Info

Publication number: DK2381809T3
Application number: DK10704385.3T
Authority: DK
Inventors: Emmanuel Contal
Original assignee: Podo Concept
Priority date: 2009-01-19
Filing date: 2010-01-19
Publication date: 2015-05-11
Also published as: FR2941135A1; ES2537231T3; PL2381809T3; WO2010081974A1; EP2381809A1; TN2011000348A1; BRPI1007055A2; EP2381809B1; PT2381809E; FR2941135B1

Description

ORTHOPAEDIC MODULE Field of the invention

The present invention concerns a module intended for producing podiatric or comfort orthoses, in particular orthopaedic soles.

Prior art

Orthopaedic soles or plantar orthoses are used as a support for the foot in a shoe. They are removable, being placed inside a town or sports shoe. Orthopaedic soles are generally intended to compensate for deformation of the sole of the foot, to dampen shocks when walking and running, taking the load off bearing areas subjected to very high stresses, or even ensuring comfort while preventing the appearance of pain relating to the shape of the shoe.

Orthopaedic soles or orthoses must be adapted to the anatomy of the foot. They may be of the mechanical type, being produced by an assembly of elements of different heights, from materials of different densities, or may be produced by moulding based on thermoformable elements.

Thus the document FR 2 782 613 in the name of the Applicant is known in the prior art, describing an orthopaedic module produced from thermoformable materials. The module comprises a base intended to come into contact with the insole of the shoe, a rigid or semi-rigid shell intended to confer support on the orthopaedic sole and a top lining intended to isolate the foot from the shell. The support shell comprises a rear contour situated in the vicinity of the contour of the base and a front contour having a cutout in the form of a V, the arms of the V extending as far as the base of the end metatarsals. This solution certainly provides a difference in tarsal/metatarsal density with the effect of improved stability of the foot but, through its mechanical features, which are due to the material and thickness thereof, it does not provide sufficient holding and support of the arch of the foot. It should be noted that the thickness of this shell has been limited in order to avoid sensations of discomfort due to the contact of the tangential edges thereof with the foot of the user. A solution was proposed in the catalogue for this year from the company Coblentz, where a module is observed produced in accordance with the aforementioned document but which comprises an additional reinforcement arranged solely at the arch of the foot. Certainly providing better support of the arch, this solution has limitations with regard to the stability of the foot. This is because twisting in a vertical plane about the longitudinal axis of the foot may arise while walking.

The document WO 2005/058085 is also known, which describes an individualised sole with a multilayer structure comprising, starting from the top: a first layer of fabric, a second layer made from a damping material, a third layer made from a non-woven material, a fourth layer made from resin extending from the heel as far as the toes, and a fifth resin layer situated in the area of the heel and provided with a cushion made from a shock-absorbing material. The sole thus produced certainly provides better support of the heel but in return it leads to an insufficient support of the arch, firstly because the fourth layer of resin has a convexshaped contour without any possibility of lateral support of the foot and secondly because the fifth resin layer surrounds the calcaneum. Moreover, this sole is liable to cause discomfort when the toes flex, since the fourth resin layer is extended as far as them. Another drawback is increased difficulty during the fashioning of such a resin sole, since this material cannot be subjected to finishing work by sanding. The addition of a supplementary layer enabling it to be fashioned would lead to the obtaining of an excessively thick sole and would limit use thereof.

Subject matter of the invention

The aim of the present invention is to remedy the aforementioned drawbacks and to propose an orthopaedic module of the type that can be used for obtaining, by thermoforming, an orthopaedic sole that is able to provide good support of the arch and at the same time to stabilise the foot when the wearer of said sole moves.

Another aim of the invention is to propose an orthopaedic module able to provide good holding of the foot and at the same time good comfort during walking or running, or even to ease certain painful pressures while being of reduced bulk.

Another aim of the invention is to propose an orthopaedic module able to provide good holding of the foot with good pressure distribution, while being able to be produced easily by thermoforming in order to be able to simplify the process of producing a sole including it, avoiding passing through tedious re-working or fashioning operations, with a lower manufacturing cost.

These aims were achieved with an orthopaedic module for producing by thermoforming orthopaedic soles comprising a multilayer complex associating in the following order, in independent form or in a pre-glued form: - a first rigid or semi-rigid shell, intended to confer support for the orthopaedic sole; - said first shell having a V-shaped anterior cut-out, wherein the end of the internal arm is situated in the vicinity of the first metatarsal collar, the end of the external arm is situated in the vicinity of the fifth metatarsal collar, and the posterior edge is substantially situated in the vicinity of the posterior centre of the middle metatarsals, - a top lining, in the form of a full sole or cut with an anterior edge situated substantially at the anterior limit of the anterior heel, and intended to isolate the foot from the shell, characterised in that said module comprises at least a second rigid or semi-rigid shell intended to confer support on the orthopaedic sole, having a contour with a shape substantially identical to that of the first but having dimensions less than the first and being adjacent to said first shell.

The orthopaedic module of the invention comprises a multilayer complex, including a rigid or semi-rigid shell which, through its form and dimensions, provides a first support for the arch of the foot, as well as a top covering for protecting the foot with respect to said shell. This multilayer complex is intended to produce an orthopaedic sole through a thermoforming process, where the generic term orthopaedic sole is used to indicate a plantar orthosis or a comfort sole.

According to the invention, a second rigid or semirigid shell is added adjacent to said first shell. A second shell disposed adjacent to the first means that said second shell bears against said first shell, being able to be arranged on top of or underneath the latter. This makes it possible to adjust the mechanical strength and flexibility of the whole, the values of these parameters being determined by the characteristics of the material of the shell and the thickness thereof.

In a variant, several such rigid or semi-rigid shells can be added to the structure of the module so as to adapt the module to the shoe size, to the weight of the wearer thereof, or even to the physical activity being carried out. The different shells may have variable thicknesses, which makes it possible to increase the combinations and thus obtain a larger range of rigidity values. When several shells are added against each other to the structure of the sole, their forms and dimensions are chosen so that the contours of the various successive shells are recessed with respect to each other progressively.

More particularly, such a module makes it possible to better stabilise the rear of the foot, while offering effective assistance and guidance in walking, from the leading phase thereof. This is because the two rigid or semi-rigid shells have a clearly determined contour meaning that the force at the foot as the step progresses is transmitted, between the heel and the anterior part of the foot, by the assembly formed by these support shells. Thus the foot is well held as soon as it bears on the ground at the exterior of the heel, and then during tilting towards the fifth metatarsal, transferring the force along the external edges of the reinforcing shells, a force that is then tilted towards the first metatarsal, then towards the first toe, along the edge of the V- shaped anterior cutout, with a simultaneous bearing on the internal edge of the heel.

In addition, because the contour of the second shell is recessed with respect to the contour of the first, the height of the rigid edges is reduced, which enables the sole obtained after thermoforming of such a module to have less rigidity at its tangential edges (edges that bear tangentially against the lateral walls of a shoe will be understood). This firstly facilitates moulding and secondly confers more comfort during walking and at the same time sufficient support for the foot in the common area of superimposition of two shells.

Advantageously, the module of the invention comprises a lower base, complete or cut out, and in this alternative the anterior edge of which is situated in the vicinity of the anterior limit of the anterior heel, intended to come into contact with the insole of the shoe able to receive the orthopaedic sole, said lower base being disposed in the vicinity of said first rigid or semi-rigid shell.

Said second shell can then be arranged so as to bear directly or indirectly on said lower base, according to the type of sole. Thus, for so-called "comfort" soles, it is preferred to arrange the shell with the largest dimensions, or said first shell, directly on the lower base, between the latter and said second shell. In the case of so-called "orthopaedic" soles, it is preferred to arrange the shell with the largest dimensions, or said first shell, against said second shell, which for its part then bears directly on said lower base.

Thus, in a preferred embodiment of the invention, the orthopaedic module for the production by thermoforming of orthopaedic soles, comprises a multilayer complex associating in order, in independent form or in pre-glued form: - a lower base, complete or cut out, and in this alternative the anterior edge of which is situated in the vicinity of the anterior limit of the anterior heel, intended to come into contact with the insole of the shoe able to receive the orthopaedic sole; - a first rigid or semi-rigid shell, intended to confer support on the orthopaedic sole; - said first shell having a V-shaped anterior cutout, wherein the end of the internal arm is situated in the vicinity of the first metatarsal collar, the end of the external arm is situated in the vicinity of the fifth metatarsal collar and the posterior edge of which is substantially situated in the vicinity of the posterior centre of the middle metatarsals, - an upper lining, in the form of a complete or cutout sole with an anterior edge situated substantially at the anterior limit of the anterior heel, and intended to isolate the foot from the shell, and, more particularly according to the invention, at least one second rigid or semi-rigid shell intended to confer support on the orthopaedic sole, having a contour with a form substantially identical to that of the first, but having dimensions less than the first and being disposed adjacent to said first shell, above or below the latter.

Such a lower base advantageously supplements the module of the invention, the rigid or semi-rigid shells being sandwiched between said lower base and said upper lining. Such a base then facilitates the work of fashioning the module of the invention, in particular during finishing work by sanding of the base. The lower base also makes it possible to be able to add to the module of the invention other supplementary elements underneath the base, for example elements for stabilising the foot, these elements then being able to be glued hot, while preventing the temperature from damaging said rigid or semi-rigid shells. In addition, said lower base can itself constitute a comfort support, both on the surfaces supporting the front of the foot but also at the retrocapital region, opposite the V-shaped cutout in said rigid or semi-rigid shells.

Preferably, the edge of said second shell is recessed with respect to the edge of the first shell by a distance equal to or greater than the thickness of said second shell over its periphery.

It was found, during tests carried out, that, for values of said recess greater than or equal to the thickness of said second shell, the edge of the first shell managed to flex sufficiently moving away from the internal wall of the shoe in contact with the foot, thus ensuring good comfort for the foot during walking, over the entire periphery of these support shells. By way of example, for support shell thicknesses of between 0.5 and 3 mm, the values of this recess are preferably between 0.5 and 7 mm. The values of said recess may be different over the periphery, for example in order to be able to adapt the contour according to the sensitivity of the bearing areas .

Advantageously, the second posterior edge of the V-shaped anterior cut-out in said second shell is situated so as to be more recessed than the rest of its contour with respect to the corresponding parts of the contour of the first shell.

Thus a more recessed placement of the posterior edge of the V-shaped cut-out of the second shell makes it possible to reduce the thickness of the support material to be thermoformed, in order better to be able to conform it according to specific reliefs, such as a middle retrocapital element or a retrocapital bar.

Preferably, the second posterior edge of the anterior cutout in said second shell is situated recessed by a distance of between 5 and 15 mm, preferably 10 mm, with respect to the posterior edge of the V-shaped anterior cutout in said first shell.

Thus such a recess value makes it possible to deform the module according to the shape and dimensions of a retrocapital element disposed in the bottom of a negative matrix. This recess then makes it possible to insert such an element as from the level of approximately a posterior third of the middle metatarsals, in order to be able to cover the usual range of shoe sizes.

Advantageously, at least one of said first shell or second shell comprises a recess at the area of the heel in order to receive calcanean plantar tuberosities. Such a recess can confer more flexibility on the bearing area of the heel, and can be left free of any filling or can be filled in, partly or entirely, by a material having properties different from those of the material constituting the support shells.

Preferably, said first shell comprises a first recess at the area of the heel and said second shell comprises a second recess at the heel and the contours of said recesses are superimposed but with offset edges. In this way more comfort is obtained at the seating of the heel during use and also during moulding.

Advantageously, the contour of said second recess has the same shape but dimensions less than the contour of said recess. Preferably, said recesses are filled in at least partly by a cushion made from shock damping or absorbing material.

It would certainly have been possible to produce a second recess having a length of the periphery greater than that of the first recess, to enable an absorbing material with a greater thickness to be inserted. It is however preferred to produce a second recess the periphery of which has a length less than that of the first recess since this helps to hold the insert inside the module and ensures better fixing during thermoforming.

In a variant embodiment of the invention, a third recess is cut in the base so as to be coaxial between the two previous ones and to also have an offset from the edges of its periphery that follows the offset of the edges of the first two recesses. This makes it possible to fill in the three recesses with a damping material and to make it appear through the base for more comfort at the bearing of the heel, while improving the stability of the calcaneum after moulding of the module.

Advantageously, the module of the invention comprises an element produced from a fabric of the loop-and-hook type arranged so that it projects at the bottom face of said base. Preferably said element is an insert disposed in a recess in the base, said recess being produced at the heel.

Thus such an element made from the fabric of the loop-and-hook type, which is of the Velcro® fabric type, preferably secured to the damping element, comprises hooks directed downwards in the direction of the sole of the shoe and provision is made for cooperating with a complementary element produced from a fabric of the same type the loops of which are directed upwards in the direction of the hooks on the first. This affords stable and effective fixing of the sole obtained from such a module, in particular in the case of open shoes.

Preferably, said first shell is completed, beyond the V-shaped cutout in its anterior edge, by an anterior base produced from a material with a different hardness and having a posterior edge complementary to said cutout. This makes it possible to associate a material with a different density with an existing base and thus to accentuate the front/rear differentiation in terms of mechanical characteristics of the whole of the module.

Advantageously, at least one of said first shell or second shell comprises a first slot situated substantially at the middle part of its external edge and a second slot situated substantially at the middle part of its internal edge.

These slots, situated in front of the heel on the first support shell and/or on the second support shell, are arranged on either side of the longitudinal axis of the foot, respectively on the internal edge and on the external edge thereof, to afford better flexibility in twisting of the rear of the foot with respect to the front of the foot, while keeping good plantar support. The articular axes concerned are known by the names "Lisfranc" and "Chopart" and enable the foot to perform twisting movements on a longitudinal axis, which affords good adaptation of the foot to the relief of the terrain, in particular on uneven ground. In addition, these slots or cut-outs improve the adaptability of the moulded sole to the more or less wide contour of a shoe.

Preferably, the module of the invention has, at its external edge, a concavity situated substantially opposite the styloid apophysis, this concavity being associated with a projection situated just at the rear, so as to confer greater stability on the rear of the foot. Such a stability of the foot, in particular of the calcaneum, is thus obtained by moving up the seating of the sole then formed in the shoe.

The subject matter of the invention is also achieved with an orthopaedic sole comprising a module of the invention.

Description of the figures

Figures la to If are schematic representations in plan of the different base elements forming part of the module of the invention.

Figure 2 is an exploded view of the module of the invention.

Figures 3a to 3d are schematic representations in plan showing the different phases of assembly of the module of the invention;

Figure 4 is a view in transverse section of a variant embodiment of the module of the invention.

Figures 5a and 5b are plan views of two elements of the module of the invention according to another variant embodiment of the invention.

List of references

Detailed description of the invention

Figures la to If illustrate the main parts forming an orthopaedic module 1 intended to constitute, by thermoforming, an orthosis or orthopaedic or podiatric sole according to a prefered embodiment of the invention. This orthopaedic module is formed by the association, in the following order, of at least: a lower base 2 (Figure la), the form of which corresponds substantially to the contour of the shoe after thermoforming (initially the dimensions thereof being greater), with the exception of the anterior edge, optionally limited to the anterior area of the anterior heel (as shown by the broken line 27 in Figure la) , and produced from a polyurethane, polyethylene or EVA foam, and intended to come into contact with the insole of the shoe; - a first rigid or semi-rigid shell 11 (Figure lc) based on resin, heat-fusible or not, capable of flowing or not, for example a polyester or polyaramid resin, the contour of which corresponds also to that of the shoe, and the anterior edge 13 of which has a cutout in the shape of a rounded V, where the end 14 of the internal arm is close to the first metatarsal collar, the end 15 of the external arm is situated in the vicinity of the fifth metatarsal collar and the posterior edge 16 is substantially situated in the vicinity of the posterior centre of the middle metatarsals; this shell is intended to fulfil the function of reinforcement and support, in particular of the arch of the foot, to ensure correct and durable moulding of the orthopaedic sole, and to reinforce the orthopaedic corrections made; - a lining 21 (Figure If), the form of which corresponds substantially to the contour of the shoe after thermoforming (initially the dimensions thereof being greater) and also produced from polyurethane, polyethylene or EVA foam or from a synthetic material imitating leather, or leather or any natural or synthetic material tolerated by the plantar skin, intended to isolate the foot from the shell, but also to transfer the rigidity of the shell to the foot.

According to the invention, the orthopaedic module comprises a second rigid or semi-rigid shell 3 (Figure lb) intended to confer support on the orthopaedic sole, having a contour with a form substantially to that of the first but having dimensions less than the first and being situated, in a preferred embodiment of the invention and as illustrated in the figures, between the lower base 2 and said first shell 11. This second rigid or semi-rigid shell 3 is produced from resin, heat-fusing or not, capable of flowing or not, for example a polyester or polyaramid resin, the contour of which corresponds also to that of the shoe, where the anterior edge 5 has a cutout in the shape of a rounded V, the end 7 of the internal arm is in the vicinity of the first metatarsal collar, the end 6 of the external arm is situated in the vicinity of the fifth metatarsal collar, and the posterior edge 8 is situated substantially in the vicinity of the posterior centre of the middle metatarsals; this shell is intended to reinforce the function of reinforcement and support, in particular of the arch of the foot, to guide the foot during walking, while ensuring correct and durable moulding of the orthopaedic sole, and to reinforce the orthopaedic corrections made.

The first shell 11 also comprises a first recess 12 and the second shell 3 comprises a second recess 4, these recesses being produced at the area of the heel, in order to receive the calcanean plantar tuberosities. These recesses 4, 12 thus provided can be filled in by an insert of corresponding shape, in particular a cushion 20 (Figure Id) produced from a shock damping or absorbing material, for example produced from neoprene, PVC or polyurethane foam. This insert is glued to the lower base 2 or to the lining 21.

According to a variant of the invention, there is added to the first shell an anterior base 19 (Figure le) with a shape complementary, at its posterior edge, to the V-shaped cutout 13 of the shell 11, and the contour of which corresponds to that of the size of the shoe envisaged. It may nevertheless have a cut-out at its anterior edge corresponding to the anterior limit of the anterior heel. This anterior base 19 can be produced from a damping material or from polyurethane, polyethylene or EVA foam. This anterior base is intended to fulfil a function complementary to that of the lining and optionally to accentuate the front-rear differentiation in terms of mechanical characteristics of the sole or of the orthopaedic sole resulting from this module.

All these elements can be offered in independent form, the podiatrist superimposing on one another in the order lower base - shell - lining before proceeding with the thermoforming of the module thus made up. In another alternative, these elements are pre-glued and in fact constitute a single entity ready to be thermoformed. In yet another alternative, these elements are pre-glued and thermoformed. Whatever the solution adopted, the contours of these three elements must fit precisely.

According to an advantageous feature of the invention, and as more clearly visible in Figures 2 and 3b, the contour of the second shell 3 has a form substantially identical to that of the first shell 11 but has dimensions smaller than the first. Thus there exists an offset or recess between the contour of the second shell 11 and that of the first shell 3 over the entire periphery of the latter, including on that of its recess 4. This offset is intended to provide more comfort for the foot during moulding, and during use, the dimensions thereof being determined according to the thickness of the second shell 3. By way of example, for support shell thicknesses of between 0.5 and 3 mm, the values of this offset or recess are preferably between 0.5 and 7 mm over the entire periphery, except at the anterior edge 8 of the second shell, where this offset or recess is greater, this being between 5 and 15 mm, preferably around 10 mm, to make it possible to insert a middle retrocapital element at this point.

Figures 3a to 3d represent different phases of production of a module of the invention from cut-out elements. Figure 3a illustrates the superimposition between the lower base 2 and the second shell 3, the latter being positioned following marks 26 in Figure la. Figure 3b illustrates a view from below of the first shell 11 assembled with the second shell 3, and Figure 3c a plan view of this assembly before being positioned on the lower base 2, as illustrated in Figure 3d, a positioning that takes place also by means of the marks 26 in Figure la.

According to another advantageous feature of the invention, the module thus formed has, at the external edge of the first shell 11, a concavity 17, and respectively at the external edge of the second shell 3 a concavity 9, both situated opposite the styloid apophysis, these concavities being associated, the first with a projection 18, and respectively the second with a projection 10, situated just to the rear with respect to these concavities, as can clearly be seen in Figures lb and lc. This confers greater stability on the rear of the foot and in particular the calcaneum, through the moving back of the seating of the sole then formed in the shoe.

Figure 4 illustrates a view in transverse section of a module according to a variant of the invention, the view being produced with a vertical plane containing the axis of the coaxial recesses 4 and 12. It will thus be noted that the contours of said recesses 4, 12 are superimposed but with offset edges so as to obtain more comfort at the seating of the heel in use and also during moulding. According to this variant, the contour of the second recess 4 has the same form as, but dimensions smaller than, the contour of the first recess 12 in order to afford a better holding in place and better bonding during the thermoforming of a cushion 20 produced from a shock damping or absorbing material that fills in said recesses .

Figure 5a illustrates a first shell 11 and Figure 5b illustrates a second shell 3 belonging to a module produced according to another variant embodiment of the invention. Thus the first shell 11 comprises a first slot 25 situated substantially in the middle part of its external edge and a second slot 24 situated substantially at the middle part of its internal edge and the second shell 3 comprises a first slot 23 situated substantially at the middle part of its external edge and a second slot 22 situated substantially at the middle part of its internal edge. The contour of the slots 22 and 23 is offset while being situated more recessed than that of the slots 24, respectively 25, in order to provide more comfort for the foot during moulding, and during use. These slots are situated in front of the heel on the first support shell 11 and on the second support shell 3 and are arranged on either side of the longitudinal axis of the foot to afford better flexibility in twisting of the rear of the foot with respect to the front of the foot, while keeping good plantar support.

Different combinations of material can be used in the context of the formation of this module, according to the required distribution of the rigidity characteristics of the shell.

The module thus obtained is then implemented by thermoforming, for example by moulding or directly on the foot. More precisely, the moulding can take place on a pattern tool; this will usually be the case with so-called "comfort" modules or soles, sold preformed. The moulding can also take place directly on the foot, usually in a shop or workshop; this will usually be the case with so-called "orthopaedic" sole modules in the narrow sense of the word, which must be adapted to the morphology (special or even pathological) of the foot.

This does not exclude the possibility of producing so-called "comfort" modules or soles directly moulded on the foot, in the shop.

Finishing and adaptation operations in the fitting can also be provided. Moreover, the module according to the invention also makes it possible to fit rigid or semi-rigid, or even flexible, orthopaedic correction elements the nature and location of which are determined by the podiatrist according to the pathologies encountered. Fitting these elements may take place in the following manner: the module previously being heated to a suitable temperature, depending on the nature of the material that makes it up, one or more recesses curved in shape are produced within the first shell 11 and/or the second shell 3 and are then filled in by a filling material of suitable hardness. These elements can also be attached, in particular by bonding on the entity formed by the lower base in the shell, the lining 21 then being glued to this assembly thus produced.

According to another variant of the invention, the shell is itself produced from a dual-component composite material, combining a resin and a foam, for example polyurethane, or even a high-density foam (EVA).

In the same way, the lower base 2 and the lining 21 may be composite, combining several foams of different densities, or even be produced from a shock absorbing material.

Other variants and embodiments of the invention can be envisaged without departing from the scope of the claims thereof. Thus other forms of anterior cutouts in the shells 3 and 11 can be produced, in particular of the type described in the document FR 2 7 82 613 in the name of the Applicant. It is also possible to reverse the positioning of the lower and upper shells with respect to each other according to the type of sole, in particular "comfort" or "orthopaedic", that it is wished to obtain.

Claims

An orthopedic module (1) for the manufacture of orthopedic soles by thermoforming comprising a multi-layered complex which sequentially joins the following independently or in pre-pasted form: - a first rigid or semi-rigid shell (11) which is intended to provide support for the orthopedic sole; - the first shell (11) having a forward cut-out (13) in the V-shape, the end (14) of the inner leg being in the vicinity of the first middle foot neck where the end (15) of the outer leg is located near the fifth middle foot neck, and wherein the trailing edge (16) is substantially near the trailing middle of the middle middle foot, - an upper liner (21) in the form of a complete or cut sole with a leading edge substantially at the anterior border of the rear heel and intended to insulate the foot from the first shell (11), characterized in that it comprises at least one other rigid or semi-rigid shell (3) intended for to provide support for the orthopedic sole, and has an outline substantially identical to the outline of the first, but of a size smaller than the first, and adjacent to the first shell (11).

A module according to claim 1, characterized in that it comprises a lower complete or cut base (2), and in this alternative, the leading edge being in the vicinity of the boundary of the front heel which is intended to come in contact with the insole of the shoe, which can accommodate the orthopedic sole where the lower base (2) is positioned near the first rigid or semi-rigid shell (11).

Module according to one of claims 1 or 2, characterized in that the edge of the second shell (3) is further back than the edge of the first bowl (11) at its circumference with a distance equal to or greater than the thickness of the second shell (3).

Module according to claim 3, characterized in that the second rear edge (8) of the second front V-shaped cut-out (5) of the other is located further back than the rest of the circumference relative to the corresponding parts of the circumference of the the first bowl (11).

Module according to claim 4, characterized in that the second rear edge (8) of the second front cut-out (5) of the second shell (3) is further back with a distance between 5 and 15 mm, preferably 10 mm, relative to the rear edge (16) of the front V-shaped cutout (13) of the first bowl (11).

Module according to one of the preceding claims, characterized in that at least one of the first shell (11) or second shell (3) comprises a recess (4,12) at the heel region for accommodating the plantar calceneus tuberosities.

Module according to claim 6, characterized in that the first shell (11) comprises a first recess (12) at the region of the heel, and the first shell (3) comprises a second recess (4) at the heel, and the outline is arranged on top of each other, but with offset edges.

Module according to claim 7, characterized in that the outline of the second recess (4) has the same shape, but of smaller size at the outline of the first recess (12).

Module according to one of Claims 7 or 8, characterized in that the recesses (4,12) are filled at least partially by a small pad (20) in a shock-absorbing or absorbent material.

Module according to any one of the preceding claims, characterized in that it comprises an element made of a loop-hook type fabric arranged in such a way that it protrudes at the lower surface of the lower one. base (2).

The module according to claim 10, characterized in that the element is an insert placed in a recess of the base, the recess being formed at the heel.

Module according to one of the preceding claims, characterized in that the first one must be completed in addition to the front V-shaped cut (13) from its front edge with a front base (19) made of a material with too different hardness, and has a trailing edge that is complementary to the cut.

Module according to one of the preceding claims, characterized in that at least one of the first shell (11) or second shell (3) comprises a first slot (22, 24) which is substantially in the middle part of the outer edge, and another slot (23,25) substantially located in the middle portion of the inner edge.

Module according to one of the preceding claims, characterized in that it has at its outer edge a concavity (9,17) which is substantially opposite to the styloid process, wherein this concavity is connected to a projection (10, 18) located just behind, to provide greater stability to the hind foot.

Orthopedic sole, characterized in that it comprises a module according to one of the preceding claims.