Support device for adapting the position of at least one segment of a limb of a user

Abstract

The invention relates to a support device for adapting the position of at least one segment of a limb, characterized in that it comprises at least two cushions (1, 2), each cushion (1, 2) comprising a body (1a, 2a) and having an upper face (FS1, FS2), a lower face (FI1, FI2) and a peripheral edge, the cushions being assembled in pairs by a connecting means (3) forming a hinge configured to allow the change-over from a first position, called a folded position, in which the upper face (FS1, FS2) or lower face (FI1, FI2) of a first of the cushions (1, 2) of the pair at least partially overlies the upper face (FS1, FS2) or lower face (FI1, FI2), respectively, of a second of the cushions (1, 2) of the pair, to a second position, called an unfolded position, in which the faces (FS1, FS2, FI1, FI2) of the cushions (1, 2) of the pair are not facing each other.

Description

[0001] Description

[0002] Title: Support device for the positional adaptation of at least one segment of a user's limb

[0003] technical field

[0004] The present invention falls within the field of ergonomic pillows or cushions.

[0005] More specifically, the invention falls within the field of modular equipment, such as cushions or pillows, designed to promote the comfort of a user regardless of the body position adopted and to relieve joint and muscle tension resulting from professional activities or activities of daily life.

[0006] The invention relates to a support device for the positional adaptation of at least one segment of a limb of the user. In particular, it allows for the control of the mechanical positional angles responsible for pain in the affected limb segment or limb.

[0007] From a biological point of view, a limb is understood to mean each of the four mobile and articulated appendages, linked to the trunk and arranged in symmetrical pairs, and whose main function is either grasping in the case of the arms, or locomotion in the case of the legs.

[0008] The term "upper limb" also refers to each of the two articulated appendages attached to the upper part of the user's trunk via the shoulder girdle. The upper limb is made up of four segments: the shoulder, the arm, the forearm, and the hand.

[0009] Finally, the term lower limb refers to each of the two articulated appendages attached to the lower part of the user's trunk via the pelvic girdle. The lower limb comprises four segments: hip, thigh, leg, and foot.

[0010] The present invention has applications in many fields such as improving individual well-being, relaxation, post-operative recovery, and recovery after sports.

[0011] State of the art

[0012] Nowadays, musculoskeletal disorders and limb injuries, particularly those related to accidents, work-related activities, aging, or sports, are increasingly common. For example, shoulder pain affects 7 to 35% of adults and has several major identified causes, including adhesive capsulitis, osteoarthritis, fractures, and rotator cuff tears.

[0013] This results in significant pain for the individual, leading to major sleep disruption that considerably impacts their abilities during waking hours, causing difficulties with recovery and concentration. This disruption can also lead to mood disorders, potentially progressing to anxiety and depression.

[0014] To improve a user's positional comfort and sleep, many devices are known, such as cervical pillows, nursing pillows, or pre-shaped pillows designed for the lying position.

[0015] However, when dealing with existing pain in a limb, a user wishing to implement these solutions must either repurpose them or accept a predefined posture that is not easily adaptable to their body shape. For example, cervical pillows are initially designed to address pain in the user's neck and aim to improve the positioning and alignment of the cervical spine, not a specific limb or segment. Nursing pillows, on the other hand, have a more adaptable structure but are usually uniform in size and quite bulky. Finally, pre-shaped pillows, designed to conform to a specific area of ​​the body or limb, are most often intended for use while lying down. Their standardized shape does not allow for adjustable use at any time, nor is it optimal for daytime use.

[0016] Summary of the invention

[0017] The invention aims to improve the situation described above.

[0018] The invention aims to remedy the drawbacks of the prior art, by offering a device adaptable to the different morphologies and ages of users, regardless of the time or posture adopted.

[0019] The comfortable positioning of the limb provided by the device is therefore of great interest in improving these situations, with an objective of relaxation and release, promoting a faster and qualitative recovery.

[0020] Furthermore, the proposed support device is universal in that it allows for adjustment to the natural anatomical angles of the user's upper limbs. In addition, it can be used in any body position: lying down, sitting, or otherwise, and guarantees adaptation to the user's anatomy and body shape.

[0021] Also, if the origin of the pain is located in the neck region, the device contributes to an even greater reduction in joint and muscle tension compared to isolated cervical care and helps to improve symptoms radiating towards the shoulder.

[0022] Thus, the object of the present invention relates to a support device for a positional adaptation of at least one segment of a user's limb.

[0023] Advantageously, the support device according to the present invention comprises at least two cushions, each cushion comprising a body and having an upper face, an lower face and a peripheral edge.

[0024] Each cushion thus has faces that can be in contact with the user's body and support the limb segment or limb in question, and is associated with at least one other adjacent cushion by a hinged connecting means.

[0025] Advantageously, the cushions are assembled in pairs by a hinged connecting means, configured to allow passage from a first position called folded to a second position called unfolded.

[0026] In the first so-called folded position, the upper face, respectively lower face, of one of the cushions of the pair is at least partially superimposed with the upper face, respectively lower face, of a second of the cushions of said pair.

[0027] In the second position, known as the unfolded position, the faces of the cushions in the pair are not opposite each other.

[0028] Thanks to this arrangement, we obtain a device in which the cushions can be folded into multiple configurations and in multiple locations.

[0029] This allows the user to relieve pain in multiple ways, the location or intensity of which may change, both during daytime and nighttime periods, whether related to inadequate positioning, an illness or trauma to the limb segment or limb.

[0030] These modular cushions thus allow support for the arm, forearm and hand.

[0031] Limb segments or members can also be supported symmetrically, for example in the case of upper limbs.

[0032] The proposed support device can therefore address one or more problems, simultaneously or over the course of the user's life, and is easier to use compared to equipment specifically designed for the painful area, which has little adaptability and often requires complex handling.

[0033] Preferably, the support device includes three cushions.

[0034] Preferably, the support device includes two cushions.

[0035] In other embodiments, the device may also include a cover with as many compartments as there are cushions. Such a cover can, for example, facilitate cleaning or allow the device to be personalized, for instance, by altering the user's tactile perception.

[0036] Advantageously, in this embodiment each compartment is provided with an opening leading to a housing space for an associated cushion body.

[0037] When the compartment receives the body, the compartment presents the upper surface, the lower surface, and the peripheral edge. In other words, each compartment receiving a body becomes itself a cushion presenting these surfaces and edge.

[0038] Optionally, the opening can be fitted with a closure system, for example a flap, buttons or a zipper.

[0039] In an embodiment where the cushions are assembled together without a cover, the body of the cushion has the upper face, the lower face and the peripheral edge.

[0040] As we saw previously, in order to finely adjust the positioning angles of the limb segments, the cushions are assembled in pairs by a hinged connecting mechanism. This allows the user to choose between a folded position of the cushions, in which they are at least partially overlapped, and an unfolded position in which, for example, only one cushion can be used per limb segment.

[0041] The user can thus create a modular thickness that can be positioned laterally and / or supported by him / her and increase or decrease, according to the need, the moment and the posture taken, the angles of retropulsion, antepulsion and rotation for the upper limb.

[0042] Advantageously, the hinged connecting means has at least one through-hole. This hole can, for example, allow a strap from another device worn by the user, such as a removable shoulder support brace, to be passed through.

[0043] Of course, all combinations are possible regarding the number, size, and thickness of the cushions, as well as the choice between using identical or different cushions. More specifically, one or more cushions located under the arm allow adjustment of the angle α between the arm and the user's torso, which corresponds to the angle of retropulsion or antepulsion of the shoulder joint, while one or more cushions located under the forearm allow adjustment of the angle P between the forearm and the torso, which corresponds to the angle of rotation of the shoulder joint.

[0044] Antepulsion refers to the raising of the arm forward, while retropulsion moves the arm backward. In the case of the upper limb, slight retropulsion corresponds to the usual position of the arm of a person lying naturally without using a support device.

[0045] Preferably, the joining means for assembling the cushions comprises a spacer strip extending along at least a portion of the peripheral edge of each of said two cushions assembled in pairs.

[0046] Even more preferably, the spacer strip has no padding. Indeed, the spacer strip is not intended to support a section or a limb of the user, but allows significant flexibility for the device without creating excess thickness that could hinder the adjustment of positional angles.

[0047] In its most common variants, the cushions of the device are substantially rectangular or square, the peripheral edge comprising two lateral edges and two outer edges, while the spacing band extends along at least a portion of the lateral edges.

[0048] However, the cushions can take any shape suitable for the intended application, such as a round shape or with specific edge cutouts.

[0049] Advantageously, each spacing strip between two assembled cushions can have a different width than the other strip(s) provided.

[0050] Preferably, the spacing strip has a width of 20% to 75% of the cumulative thickness of the cushions connected to it, allowing it to play a hinge role without restricting the overlapping of said cushions while maintaining their solidarity.

[0051] Preferably, a spacing strip has a width between 15 mm and 300 mm.

[0052] Advantageously, in order to obtain, on the one hand, sufficient volume and / or thickness in the cushions for adjusting the positioning angles of the limb segments and, on the other hand, a weight that does not hinder the user, the body of the cushions is made or filled with a material having a density between 1 and 30 kg / m³ 3 To ensure both comfort and sufficient support for the limb segment or limb, the cushion body is advantageously made or filled with a material having a Young's modulus between 0.01 GPa and 30 GPa. Those skilled in the art know how to select the most suitable Young's modulus from the range described above, based on the user's morphology and, in particular, their weight.

[0053] The use of materials such as: memory foam, mobile particles, fibers, wadding, is conceivable.

[0054] Each cushion can be filled with a material suited to the limb segment or limb being supported. Thus, in some variations, the use of cushions with the same Young's modulus will be desirable, while in other variations, and depending on the user's needs, the cushions used may have different Young's moduli. The same applies to the materials used.

[0055] Preferably, the body of the cushions is filled with particles that move relative to each other. The use of particles has the advantage of ensuring a perfect adaptation to the user's morphology, since the filling can move inside the cushion and conform as closely as possible to the limb segment or the supported limb.

[0056] Even more preferentially, the body of the cushions is filled with mobile particles having a Young's modulus between 0.2 GPa and 30 GPa.

[0057] In order to ensure satisfactory particle mobility, the body of the cushions preferably has a filling of between 50% and 90% by volume, especially when the body and / or the cover is made of non-elastic material, such as cotton or linen.

[0058] Even more preferentially the mobile particles are spherical balls, this allows a fluid movement of the lining and guarantees an adaptation to the anatomy and morphology as well as a pleasant sensation for the user.

[0059] When the body of the cushions and the cover are made of a material with elasticity, such as cotton-elastane, the cushions have a filling of between 90% and 100% by volume.

[0060] Preferably, the particles are chosen from a group consisting of: expanded polystyrene, ecographite, cork,

[0061] Preferably, the particles have a size, in their largest dimension, between 0.2 mm and 6 mm.

[0062] To ensure consistent and reliable support, the support device advantageously includes at least one initial attachment, known as a positioning attachment, fixed to one side of at least one of the cushions. This attachment is configured to maintain at least one segment of the limb in contact with that side, thus preventing any unexpected movement that could alter the chosen positional angle, particularly during sleep. This positioning attachment may, for example, include a hook-and-loop fastener area onto which a wrist strap, itself made of hook-and-loop material and positioned on the user's limb, can be removably and adjustablely attached.

[0063] Finally, in order to ensure support, the support device includes at least one second attachment, called a safety attachment, fixed to one of the faces of at least one of the cushions and configured to hold said at least one cushion to the user's body.

[0064] Preferably, said securing attachment is fixed on a face opposite to that receiving at least one first positioning attachment.

[0065] The said safety attachment may, for example, include a self-gripping area on which a strap, itself made of self-gripping material and placed on the user's body, can be positioned in a removable and adjustable manner.

[0066] Thus, for example, to secure the support device to the user's trunk, a hook-and-loop fastener can be used, wrapping around the trunk and attaching reversibly to a hook-and-loop area on one side of at least one cushion of the device. The trunk, device, and upper limb are then held securely together.

[0067] Thus, through the multiplicity of possible conformations and dimensions, the proposed support device can allow a user of any age, from children to seniors, to increase well-being and recovery efficiency following any event, such as an accident, an operation or a sporting activity, which has caused discomfort or pain.

[0068] Figures

[0069] Other features and advantages of the present invention will become apparent from the description below, with reference to the attached Figures 1 to 16, which illustrate some embodiments without being limiting in any way and on which:

[0070] [Fig- 1]

[0071] Figure 1 represents the device in its first embodiment according to the invention, seen from the front, where the cushions are assembled by the hinged connecting means;

[0072] [Fig- 2]

[0073] Figure 2 represents the cover, front view, provided in the second embodiment of the invention, in which the compartments are assembled by the hinged connecting means;

[0074] [Fig- 3]

[0075] Figure 3 shows the device in its second embodiment, seen from the front, in which the housing spaces for the cover are fitted with the associated cushions; [Fig- 4]

[0076] Figure 4 represents the device in its second embodiment, seen in cross-section, in an unfolded position where the spacing strip of width D is fully extended;

[0077] [Fig- 5]

[0078] Figure 5 represents the device in its second embodiment, seen in cross-section, in a folded position where the cushions are fully overlapped; [Fig- 6]

[0079] Figure 6 shows the device in its second embodiment, seen in cross-section, in a first folded position where the cushions are partially overlapped; [Fig. 7]

[0080] Figure 7 shows the device in its second embodiment, seen in cross-section, in a second folded position where the cushions are partially overlapped; [Fig. 8]

[0081] Figure 8 represents a user lying on their back, in the anatomical position known as supine decubitus, whose arm naturally presents a retropulsion angle of the shoulder joint;

[0082] [Fig. 9]

[0083] Figure 9 represents a user lying on their back, in the anatomical position known as supine decubitus, using the support device which, by using the thinnest cushion under the arm, cancels the retropulsion angle of the shoulder joint;

[0084] [Fig. 10]

[0085] Figure 10 represents a user lying on their back, in the anatomical position known as supine decubitus, using the support device which, by using the thickest cushion under the arm, allows for an antepulsion angle of the shoulder joint;

[0086] [Fig. H]

[0087] Figure 11 depicts a seated user with the thicker cushion positioned under the arm and forearm, while the hand rests on the thinner cushion; [Fig. 12]

[0088] Figure 12 represents a user lying on their back, in the anatomical position known as supine decubitus, using the support device which, by using the thickest cushion under the arm and the thinnest cushion under the forearm, allows for a small angle of rotation of the shoulder joint;

[0089] [Fig. 13]

[0090] Figure 13 represents a user lying on their back, in the anatomical position known as supine decubitus, using the support device which, by using the thinnest cushion under the arm and the thickest cushion under the forearm, allows a large angle of rotation of the shoulder joint;

[0091] [Fig. 14]

[0092] Figure 14 represents a user lying on their back, in the anatomical position known as supine decubitus, using the support device in its embodiment employing three cushions;

[0093] [Fig. 15]

[0094] Figure 15 represents a user lying on their side, in the anatomical position known as laterocubitus, whose arm naturally presents a large angle of horizontal adduction of the shoulder joint;

[0095] [Fig. 16]

[0096] Figure 16 represents a user lying on their side, in the so-called lateral cubitus anatomical position, using the support device which, by using two partially overlapping cushions, reduces the horizontal adduction angle of the shoulder joint;

[0097] [Fig. 17]

[0098] Figure 17 depicts a user lying on their back, in the anatomical position known as supine decubitus, using the support device in conjunction with positioning straps; [Fig. 18]

[0099] Figure 18 depicts a user in a semi-seated position with their arm resting on the thickest cushion of the support device;

[0100] [Fig. 19]

[0101] Figure 19 depicts a user equipped with both a splint and a support device according to the invention.

[0102] Detailed description

[0103] Different embodiments of the support device according to the invention are shown below in Figures 1 to 19. The support device is illustrated in Figure 1 in a first embodiment without a cover, viewed from the front, where a thin cushion 1 and a thicker cushion 2 are joined by a hinged connecting means 3. In the configuration shown, cushion 1 and cushion 2 are substantially rectangular or square, such that cushion 1 has a peripheral edge comprising two lateral edges 11 and two outer edges 12, while cushion 2 has a peripheral edge comprising two lateral edges 21 and two outer edges 22. Finally, the spacer strip 3a extends along the lateral edges 11 and 21 of each of cushions 1 and 2 so as to join them.In a second embodiment of the invention, the support device is fitted with a cover as shown in the front view of Figure 2, in which the compartments 4 are assembled by means of the hinged connecting means 3. This allows, for example, for greater versatility in the materials, textures, or mechanical characteristics of the device, or, as mentioned previously, facilitates maintenance.

[0104] The cover advantageously comprises as many compartments 4 as there are cushions 1 and 2 required. Thus, in the variant shown in Figures 3 and 4, respectively front view and cross-sectional view, the cover has two compartments 4, each fitted with a substantially rectangular or square cushion 1 or 2. Therefore, the compartment 4 that receives the body 1a or 2a of a cushion 1 or 2 has the upper face FS1, FS2, the lower face FI2, and the respective peripheral edge of said body 1a or 2a of cushion 1 or 2. Thus, the compartments 4 shown in Figure 4 have the lateral edges 11, the outer edges 12, the lateral edges 21, and the outer edges 22 of the respective bodies 1a or 2a of cushions 1 or 2. Also, in the variant illustrated in Figure 3, the connecting means 3 consists of a hinged spacer strip 3a having a through hole 5.This opening can, for example, allow a strap of another device worn by the user, such as a removable shoulder support brace, to be slipped through.

[0105] Figure 19 illustrates such a combination of equipment, where the user wears a splint 7 in conjunction with a cushion 2 placed under the arm and connected by a spacer band 3a to a cushion 1 placed between the trunk and the forearm.

[0106] In both views of figures 3 and 4, the device is in an unfolded position in which the spacer strip 3a of width D is fully extended and in which the upper faces FS1, FS2, and lower faces Fil, FI2 of cushions 1 and 2 of the pair are not opposite each other.

[0107] Thanks to the linkage 3 which allows the transition from a folded position to an unfolded position and vice versa, the user can adapt the thickness of the device and its arrangement according to their needs by positioning the limb segment or the limb on the face(s) most suitable to obtain the desired effect: relaxation, pain relief, optimal elevation of the limb segment...

[0108] Figures 5 to 7 depict the device in its second embodiment, using the compartmentalized cover 4, shown in cross-section, in three examples of folded positions where the spacer strip 3a acts as a hinge so that the upper faces FS1, FS2, and the lower faces FI2, respectively, of the bodies 1a and 2a of cushions 1 and 2 are fully superimposed in Figure 5, or partially superimposed in Figures 6 and 7. Figures 8 to 10 show a user lying on their back in the anatomical supine position. When this user, as shown in Figure 8, is not using the device, the arm naturally presents an angle α between the arm and the trunk, corresponding to a retropulsion angle of the shoulder joint, here with a value of α0.

[0109] To relieve pain and reduce anterior shoulder tension caused by the retropulsion of the right upper limb, this user can, for example, choose to use the support device in one of its coverless variants and adjust the antepulsion angle to provide the best comfort. To this end, as illustrated in Figure 9, by using the thinner cushion 1 under the arm and the thicker cushion 2 under the forearm, they can choose to eliminate the angle α between the arm and the trunk. This neutral position is represented by an angle value αi. If this alternative proved not sufficiently satisfactory, it could, as illustrated in Figure 10, by using the thickest cushion 2 under the arm and the thinnest cushion 1 under the forearm, obtain a greater antepulsion angle of the shoulder joint, here with a value a2 greater than al.

[0110] The support device also allows for the adjustment of several positioning angles simultaneously.

[0111] Indeed, if the situation presented in Figure 10 allows obtaining the largest angle a, the same arrangement of cushions 1 and 2 simultaneously allows the user, as presented in Figure 12, by using the thickest cushion 2 under the arm and the thinnest cushion 1 under the forearm, to obtain a small angle of rotation of the shoulder joint, here with a value of pi.

[0112] Similarly, if the situation shown in Figure 9 allows for an angle of zero, this same arrangement of cushions 1 and 2 simultaneously allows the user, as shown in Figure 13, by using the thinner cushion 1 under the arm and the thicker cushion 2 under the forearm, to obtain a greater angle of rotation of the shoulder joint, here with a value of 02 greater than 1.

[0113] Of course, all cushion configurations are possible to optimize user comfort. Figure 14 shows the user in a configuration similar to that of Figures 10 and 12, where the support device now features three cushions: two identical cushions (cushions 2) of greater thickness under the arms, and a thinner cushion (cushion 1) under both forearms. This allows the device to address symmetrical issues affecting the limb segments or upper limbs.

[0114] Of course, by using a number of cushions and varying thicknesses, it is also possible to address asymmetrical problems.

[0115] To avoid any unexpected movement which would change the chosen positional angle, particularly during sleep, cushions 1 and / or 2 can be fitted, as illustrated in figure 17, with one or more position attachments 6, here in the form of gripping areas that can be attached to bracelets, the two cushions being joined by the connecting means 3a.

[0116] The device according to the invention is also versatile in its positions of use since a user in a seated position as shown in figure 11 can for example come to support several segments of his upper limb on the thicker cushion 2, here placed under the arm and forearm, while the hand rests on the thinner cushion 1, the two cushions being assembled by the connecting means 3a.

[0117] In the case of the semi-seated position illustrated in Figure 18, the user's head and neck rest on the thinner cushion 1 while the arm rests on the thicker cushion 2, the two cushions being joined by the connecting means 3a.

[0118] It is well known that the semi-sitting position alone has an analgesic effect. It is used, among other things, in post-operative situations. Thus, this use of the semi-sitting support device addresses a frequent need for which few satisfactory solutions exist, for users who wish, for example, to relieve shoulder tension. Similarly, if the user wishes to lie on their side in the anatomical position known as lateral decubitus, the support device offers just as many advantages.Indeed, in this position and without such a support device the arm naturally presents a large horizontal adduction angle of the shoulder joint yO, as illustrated in figure 15, while in figure 16 we see for example that by using two identical but partially superimposed cushions 1, the user can considerably reduce said horizontal adduction angle here of value yl much lower than yO.

[0119] It is easily understood that this detailed description relates to particular examples of the realization and implementation of the present invention, but that in no way does this description have any limiting character to the object of the invention; on the contrary, its objective is to remove any possible imprecision or misinterpretation of the claims that follow.

[0120] Similarly, the reference symbols placed in parentheses in the following claims are in no way intended to be limiting; these symbols are solely intended to improve the intelligibility and understanding of the following claims and the scope of the protection sought.

Claims

[Demands] 1. A support device for positional adaptation of at least one segment of a limb, characterized in that it comprises at least two cushions (1, 2), each cushion (1, 2) comprising a body (1a, 2a) and having an upper face (FS1, FS2), a lower face (Fil, FI2), and a peripheral edge, the cushions being assembled in pairs by a hinged connecting means (3) configured to allow passage from a first position, referred to as the folded position, in which the upper face (FS1, FS2), respectively lower face (Fil, FI2), of one of the cushions (1, 2) of the pair is at least partially superimposed with the upper face (FS1, FS2), respectively lower face (Fil, FI2), of a second of the cushions (1, 2) of the pair, to a second position, referred to as the unfolded position, in which the faces (FS1, FS2, Fil, FI2) of the cushions (1, 2) of the pair are not in glance.

2. Device according to claim 1 characterized in that it comprises a cover having as many compartments (4) as cushions (1, 2), each compartment (4) being provided with an opening leading to a housing space for an associated cushion body (la, 2a), so that when the compartment (4) receives the body (la, 2a), the compartment (4) presents the upper face (FS1, FS2), the lower face (Fil, FI2) and the peripheral edge.

3. Device according to claim 1 characterized in that the body (la, 2a) has the upper face (FS1, FS2), the lower face (Fil, FI2) and the peripheral edge.

4. Device according to any one of claims 1 to 3 characterized in that the connecting means (3) comprises a spacing strip (3a) extending along at least a portion of the peripheral edge of each of the two cushions (1, 2).

5. Device according to any one of claims 1 to 3 characterized in that the connecting means (3) comprises at least one through orifice.

6. Device according to any one of claims 4 or 5 characterized in that the cushions (1, 2) are substantially rectangular or square, the peripheral edge comprising two lateral edges (11, 21) and two external edges (12, 22) and the spacing strip (3a) extends along at least a portion of the lateral edges (11, 21).

7. Device according to any one of claims 4 to 6 characterized in that the spacing strip (3a) has a width of 20% to 75% of the cumulative thickness of the cushions connected to it.

8. Device according to any one of the preceding claims characterized in that the body of the cushions (a1a, 2a) is made or filled with a material having a density between 1 and 30 kg / m³ 3 .

9. Device according to any one of the preceding claims characterized in that the body of the cushions (la, 2a) is made or lined with a material having a Young's modulus between 0.01 GPa and 30 GPa.

10. Device according to the preceding claim characterized in that the body of the cushions (la, 2a) is filled with mobile particles, preferably spherical balls.

11. Device according to the preceding claim characterized in that the body of the cushions (la, 2a) has a filling of between 50% and 90% by volume.

12. Device according to claim 10 in combination at least with claim 2 characterized in that the body of the cushions (la, 2a) has a filling of between 90% and 100% by volume, the body and the cover being made of an elastic material.

13. Device according to any one of claims 10 to 12 characterized in that the particles are chosen from a group consisting of: expanded polystyrene, ecographite, cork.

14. Device according to any one of claims 10 to 13 characterized in that the particles have a size between 0.2 mm and 6 mm.

15. Device according to any one of the preceding claims characterized in that it comprises at least one first attachment (6) fixed on one of the faces (FS1, FS2, Fil, FI2) of at least one of the cushions (1, 2), configured to hold at least one segment of the limb.

16. Device according to any one of the preceding claims characterized in that it comprises at least one second attachment fixed on one of the faces (FS1, FS2, Fil, FI2) of at least one of the cushions (1, 2), configured to hold said at least one cushion to the body of the user.

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