Patent Application
20230022656
The present invention relates to a device for mobilizing the human osteo-musculotendinous system.
The field of the invention is more particularly, but non-limitatively, that of devices for treating or diagnosing piriformis syndrome.
Piriformis syndrome is generally the result of a compression of the sciatic nerve or an irritation of the sciatic nerve by the piriformis muscle, and leads to pain felt in the buttock and sometimes to sciatica.
Piriformis syndrome is common and affects several populations: sportspeople, in particular high-level sportspeople, pregnant women or overweight people and lastly a final category of people of varied profiles and having various levels of activity, in particular certain professional categories at risk because of their work postures.
In order to ease or treat it, the following can currently be considered:
Different manipulations of the osteo-musculotendinous system are known which make it possible to diagnose piriformis syndrome and/or to stretch the piriformis and/or to ease piriformis syndrome, such as the “FAIR” method. This consists of bringing the leg into hip flexion, then adduction, concluding with an internal rotation. The aim of this sequence of actions is to stretch the piriformis in a certain way, thus generally leading to a sensory feedback of pain in the patient having piriformis syndrome.
Solutions that can make it easier to carry out the procedures described above are known, such as the Piri-Stretcher®, a solution that makes it possible to mobilize the knee (and the leg) with a handle that is attached to it.
The purpose of the present invention is to propose a device making it possible to mobilize the human osteo-musculotendinous system, preferably in a way that is suitable for piriformis syndrome, and:
This objective is achieved with a device for mobilizing the human osteo-musculotendinous system comprising:
The direction of the mobilizing force is preferably contained in a mobilizing force exertion plane.
The device according to the invention preferably moreover comprises means arranged to constrain, during the increase in the mobilizing force by the force-increasing means, the relative movement of the kneepad with respect to the bearing surface according to a constrained course.
The means arranged to constrain the relative movement of the knee with respect to the bearing surface are preferably arranged to keep the position of the mobilizing force exertion plane fixed during the increase in the mobilizing force.
The means arranged to constrain the relative movement of the knee with respect to the bearing surface can be arranged to keep the direction of the mobilizing force fixed during the increase in the mobilizing force.
The means for increasing the mobilizing force can comprise:
The means for increasing the mobilizing force can be arranged to increase this mobilizing force while decreasing a distance between the kneepad and the bearing surface.
The means for increasing the mobilizing force can be arranged to increase this mobilizing force while increasing a distance between the kneepad and a plane tangential to the bearing surface.
The device according to the invention can comprise at least one linking element connecting:
The at least one linking element can comprise at least one strap or a rod.
The device according to the invention can comprise at least one restoring means that is elastic (in extension and/or in compression) along the at least one linking element, said restoring means having a given rigidity along the mechanical link connecting the kneepad to the bearing surface.
The device according to the invention can comprise means for replacing the at least one restoring means from different restoring means with different rigidity and/or means for varying the rigidity of the at least one restoring means.
The device according to the invention can comprise, on the bearing surface or on an element attached to the bearing surface, a pivot pin of the kneepad, the at least one linking element connecting the pivot pin of the kneepad to the kneepad and being arranged to pivot about the pivot pin, causing the kneepad to pivot about the pivot pin.
The device according to the invention can comprise a mark or a stop arranged to make it possible to position the user's pelvis offset with respect to the pivot pin.
The means for increasing the mobilizing force can be arranged to increase this mobilizing force by pivoting the kneepad about the pivot pin such that the pivot pin of the kneepad is offset with respect to the pivot point of the knee with respect to the pelvis.
The at least one linking element can comprise an inextensible and/or incompressible rod attached to the kneepad, the means for increasing the mobilizing force being arranged to increase this mobilizing force by pivoting the inextensible and/or incompressible rod about the pivot pin.
The at least one linking element can comprise two straps connecting two sides of the kneepad to two anchoring points arranged along the pivot pin, the means for increasing the mobilizing force being arranged to increase this mobilizing force by pivoting the straps about the pivot pin.
The device according to the invention can comprise means arranged to modify a lever arm applied to the kneepad during its rotation about the pivot pin.
The means for increasing the mobilizing force can comprise means for shortening the at least one linking element.
The bearing surface preferably forms part of the device according to the invention and comprises:
The kneepad can comprise:
The kneepad can form part of a set of two attached kneepads.
The device according to the invention can comprise a system for measuring the value of the mobilizing force.
The device according to the invention can comprise an information means (by display, or sound, etc.) that informs the user of the value of the mobilizing force achieved.
The device according to the invention can comprise a means of capping the mobilizing force applied, in particular for the purposes of making it safe to use.
The kneepad and/or the bearing surface can comprise at least one restoring means that is elastic (in extension and/or in compression), said restoring means having a given rigidity arranged to have an influence on the mobilizing force exerted from the kneepad towards the bearing surface.
Other advantages and features of the invention will become apparent on reading the detailed description of embodiments and implementations which are in no way limitative, and from the following attached drawings:
As these embodiments are in no way limitative, variants of the invention can be considered in particular comprising only a selection of the characteristics described or illustrated hereinafter, in isolation from the other characteristics described or illustrated (even if this selection is isolated within a phrase containing these other characteristics), if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention with respect to the state of the prior art. This selection comprises at least one, preferably functional, characteristic without structural details, and/or with only a part of the structural details if this part alone is sufficient to confer a technical advantage or to differentiate the invention with respect to the state of the prior art.
In all of the following embodiments of the device 100, the device 100 for mobilizing (by compressing the knee) the osteo-musculotendinous system of a human user comprises:
The mobilizing force is therefore a force compressing the knee, preferably so as to generate a compression of the pelvis.
The force exertion plane 4 is preferably perpendicular to the bearing surface 5 as illustrated for the embodiments of all of the following figures.
The surface 5 is preferably flat.
The device 100 moreover comprises means 6 for increasing (preferably gradually or continuously) the mobilizing force, preferably from a zero or low initial value (typically the weight of the kneepad 2, the presence of other elements the weight of which rests on the user's knee 3, or a certain preliminary tension due in particular to the initial placement of the device). This preliminary tension can, for certain designs, include a specific pre-tension action of the device of the order of from 10 to 300 N in order that the kneepad is best positioned and in order that the placement of the mobilizing force is more effective. This pre-tension is produced for example manually by activating the pawl of each regulating rack of the best mode or placing a component for generally adjusting the length of the straps in the designs in
The device 100 moreover comprises means 7 arranged to constrain, during the increase in the mobilizing force by the force-increasing means 6, the relative movement of the kneepad 2 with respect to the bearing surface according to a course constrained by the means 7.
The position of the mobilizing force exertion plane 4 can vary during the constrained course.
The surface 5 is a limited area intended to receive the user's pelvis.
In all of the following embodiments, the relative movement of the kneepad 2 with respect to the bearing surface 5 will be illustrated by a movement of the kneepad 2. Each of these embodiments can be modified by reversing or varying the mobility of the kneepad 2 and the surface 5 such that the kneepad 2 and/or the surface 5 is mobile.
The surface 5 forms part of the device 100, for example in the form:
In a variant, the surface 5 does not form part of the device 100, and the device 100 comprises fastening means (for example a system of jaws) arranged to fasten the device 100 to the surface 5.
By “cover” is meant that the kneepad 2 is arranged (at least during the exertion of a mobilizing force beyond a certain threshold, typically of kg) to mould (by deformation of the kneepad or not) to the shape of a knee 3 (typically according to a radius of curvature of at least 3 cm), so as to prevent the knee from slipping laterally (i.e. perpendicularly to the direction of the mobilizing force) out of the kneepad 2 when the kneepad 2 is in contact with and covers the knee 3.
Even if this is not necessarily illustrated for each of the embodiments illustrated in all of the figures, the kneepad 2 and/or the bearing surface 5 can comprise at least one restoring means 111 that is elastic (in extension and/or in compression).
Each restoring means 111 has a given rigidity arranged to have an influence on the mobilizing force exerted from the kneepad 2 towards the bearing surface 5. For example, the surface 5 can be a mattress filled with springs, and/or the kneepad 2 can be made of elastic material and/or equipped with springs.
For this design, a design with a single restoring means 111 will be described here, more particularly for a design of the type in
Here, the elongation of 20 mm corresponds to an applied force of: (F°+(R*20))=290 N
The elongation of 50 mm corresponds to an applied force of: (F°+(R*50))=346 N, which is greater but remains a very reasonable force in the sense that it presents little risk to the patient.
With this equipment, a usage with quite a small elongation of the extensible linking element is frequently noted. The patients stop their muscle stretches when the elongation has reached a value of between 10 mm and 15 mm.
The elongation of 10 mm corresponds to a force applied for the spring of: (F°+(R*10))=1358 N, which already corresponds to a pressure assessed to be high.
The elongation of 15 mm corresponds to a force applied for the spring of: F°+(R*15))=1637 N.
The first assembly can be considered as being well suited to the frailest patients and the second can be considered as being well suited to patients in very good physical shape, but it should be understood that the most important thing is the range of pressure applied to the knee, which is typically from 300 N to 1600 N.
The restoring means 111 therefore typically has a rigidity greater than 0.5 N/mm and/or smaller than 70 N/mm.
By an element that is “elastic in extension” is preferably meant in the present description an element which lengthens by more than 1% (preferably by more than 10%) of its initial length when it is subjected to a traction of 100 kg parallel to its length (which is preferably parallel to the mobilizing force).
By an element that is “elastic in compression” or “compressible” element is preferably meant in the present description an element which shortens by more than 1% (preferably by more than 10%) of its initial length when it is subjected to a compression of 100 kg parallel to its length (which is preferably parallel to the mobilizing force).
By an “inextensible” element is preferably meant in the present description an element which does not lengthen by more than 1% of its initial length when it is subjected to a traction of 100 kg parallel to its length (which is preferably parallel to the mobilizing force).
By an “incompressible” element is preferably meant in the present description an element which does not shorten by more than 1% of its initial length when it is subjected to a compression of 100 kg parallel to its length (which is preferably parallel to the mobilizing force).
In the particular case in
This at least one linking element 9 typically comprises at least one strap or a rod. Even if this is not necessarily illustrated, in the majority of the designs and in particular in each of the embodiments in
As described for the means 111, each restoring means 11 therefore typically has a rigidity greater than 0.5 N/mm and/or smaller than 70 N/mm.
These means 11 have the effect of creating progressiveness, which provides ease of use and safety while in particular avoiding increases that are too abrupt and/or increases with excessively high values of the mobilizing force exerted by the kneepad 2 on the knee 3.
These means 11 can act as a means of capping the mobilizing force applied, in particular for the purposes of making the use of the device 100 safe during self-use. For example, with the previously described assembly with the coefficient of rigidity of the single spring equal to 1.84 N/mm, it is difficult to achieve forces of more than 50 Kg because this would require an extension of the spring no longer of 50 mm but of 130 mm, which is not very likely or can easily be avoided by the user and the practitioner.
The device 100 then preferably comprises means for replacing 13 the at least one restoring means 11 from different restoring means 11 with different rigidity and/or elasticity (for adapting this safety to different profiles or different morphologies of user); and/or means 14 for varying the rigidity of the at least one restoring means 11.
Each linking element 9 is:
With reference to
In the embodiments in
If the mobilizing force is not perpendicular to the surface 5, the user will feel a component of the force applied, parallel to the surface 5. This can create bodily discomfort through the tension that it causes and, if the component parallel to the surface 5 is large, this can result in a displacement of the patient's body by sliding on the surface 5, unless a wedging system is provided in order to prevent this phenomenon. The device according to the invention therefore preferably comprises such a wedging means arranged to block a sliding of the pelvis on the surface 5. This point is true if the mobilizing force is in the sagittal plane and this remains true if the mobilizing force is not in the sagittal plane.
If the mobilizing force does not have the axis of the femur as its direction, the user will feel a component of the force applied which induces a movement of the femur lifting or lowering the knee. The patient may possibly resist this force by activating the muscles of their leg, but this is unfavourable for the stretching sought, which requires the patient to relax the muscles. This point is true if the mobilizing force is in the sagittal plane and this remains true if the mobilizing force is not in the sagittal plane.
The “median plane” of the user is the plane that separates the left half of the user's body from the right half, and is preferably substantially a plane of symmetry of this body (when the latter is stretched out with the arms along the body). It is one of the innumerable “sagittal planes”, which are all parallel to the median plane.
The means 6 for increasing the mobilizing force are arranged to increase this mobilizing force while reducing a distance between the kneepad 2 and the bearing surface 5.
The means 7 arranged to constrain the relative movement of the kneepad 2 with respect to the bearing surface 5 according to a constrained course are arranged to constrain the relative movement of the kneepad 2 with respect to the bearing surface 5 according to a translational movement of the kneepad 2 in the direction of the surface 5.
The plane 4 is parallel to the plane of
With reference to
A reinforcement 24 is arranged to immobilize their pelvis against the surface 5.
The bearing surface 5 forms part of the device 100 and comprises a backrest of a chair or an armchair.
The means 7 comprise a pivot joint that allows only one rotation of the kneepad 2 parallel to the plane 4, which remains fixed.
A mechanism (not illustrated), for example comprising joints or deformable parallelograms between the pivot joint 7 and the kneepad 2, can moreover constrain the movement of the kneepad 2 perpendicular to the surface 5. In a variant, however, the force exertion direction is not strictly constant, but still remains substantially perpendicular to the surface 5 within a few degrees, typically plus or minus 15 degrees.
With reference to
The means 6 for increasing the mobilizing force comprise a restoring means, such as a spring, exerting a restoring force from the kneepad 2 towards the bearing surface 5, and gripping means (such as a lever or a handle) which are attached to the kneepad 2 and on which the user can push manually when their pelvis is on the bearing surface 5, so as to manually compensate for this restoring force. By pushing less and less or by pulling, the mobilizing force increases.
This restoring means (typically of the spring type) forms the linking element 9 connecting:
With reference to
The effect can be reduced by a mechanical system of the lever arm type (for example if the practitioner applies a weight smaller than the mobilizing force to be exerted).
The device 100 preferably comprises means (for example of the rack and/or pawl type) for accumulating the desired mobilizing force by applying successive efforts which mount up, in order to allow a progressiveness for dosing out the effort well.
The bearing surface 5 forms part of the device 100 and comprises a table, or a bed.
The means 7 comprise a guide 27 arranged to guide a movement of a part 25 connecting the kneepad 2 to the step 26. For example, this guide 27 is a hollow tube extending perpendicularly to the surface 5, and the linking part connecting the kneepad 2 to the step 26 is a sliding pin inside the hollow tube 27 perpendicular to the surface 5.
The device 100 can comprise at least one restoring means 11 (not illustrated) that is elastic (in extension and/or in compression, at least in extension) along the linking part 25, said restoring means 11 having a given rigidity or elasticity along the mechanical link 25 connecting the kneepad 2 to the step 26.
Each restoring means 11 has a rigidity of typical value.
A design with two linking elements 9, each equipped with an identical restoring means 11, in particular adapted to
The first assembly can be considered as being well suited to the frailest patients and the second can be considered as being well suited to patients in very good physical shape, but it should be understood that the most important thing is the range of pressure applied to the knee, which can typically be from 300 N to 1600 N. It is one thing to choose the spring characteristics, but it is the manner of using them that creates the pressure. For example, a very frail person can use the second device with the spring with a rigidity of 27.9 N/m and in a posture that avoids creating a significant elongation, and can thus be subjected to only a pressure of 300 or 400 N.
As a further illustration, a spring that is a little more rigid than in the second assembly proposed can be chosen for the population of patients in good physical shape:
With this equipment, a patient using the course up to an elongation of 5 mm will apply (for the two springs) a force equal to 2*(F°+(R*5))=1338 N and a patient using the course up to an elongation of 10 mm will apply (for the two springs) a force of: 2*(F°+(K*10))=1656 N.
It can be seen that the force values obtained here are quite similar to the forces obtained for the previous pair of springs. The course of applying pressure that is a little smaller has simply compensated for the use of a spring that is a little more rigid.
Finally, it is recalled that the use of such restoring means 11 is optional and that a direct application of tension to the knee is possible, supposing that the user knows how to dose out the pressure.
Each restoring means 11 therefore typically has a rigidity greater than 0.5 N/mm and/or smaller than 70 N/mm.
The device 100 can comprise means (not illustrated) for replacing the at least one restoring means 11 from different restoring means with different rigidity and/or means (not illustrated) for varying the rigidity of the at least one restoring means 11, applying the same principle as the thirteenth, fourteenth, fifteenth or sixteenth embodiment described below. This can comprise for example a set of several interchangeable springs and/or a spring with adjustable force.
With reference to
The device 100 comprises at least one linking element 9 connecting:
The at least one linking element 9 comprises at least one strap, preferably two straps or even four straps, connecting the kneepad 2 or an element attached to the kneepad 2 to the surface 5 or to an element attached to the bearing surface 5. These two or four straps are respectively hooked up to two opposite sides of the kneepad 2 (one strap on each side of the kneepad 2, or a pair of straps on each side, i.e. on the right side or on the left side of the user with respect to their median plane).
The means 6 for increasing the mobilizing force comprise means 12 for shortening at least one of the linking elements 9 or each linking element 9, more precisely means 12 for shortening at least one of the straps or each strap. These means 12 typically comprise a winder (for example a manual winder, typically with a crank) for each strap or common to several straps.
In the case in
The two straps or the two pairs of straps are arranged to pull to the right and to the left, respectively, of a sagittal plane of the user whose knee 3 is covered by the kneepad 2 (this sagittal plane passing through the kneepad 2).
The means 7 comprise the two straps or two pairs of straps, which are arranged in order to pull, in a balanced manner, to the right and to the left of the kneepad 2, so as to keep the mobilizing force inside the fixed plane 4 parallel to the median plane of the user.
In a preferred case with four straps (not illustrated), each pair of straps to the right or to the left, respectively, of a sagittal plane of the user (this sagittal plane passing through the kneepad 2) comprises two straps which are arranged in order to pull, in a balanced manner, forwards and backwards parallel to this sagittal plane of the user.
It is noted that the use of four straps makes it possible to drive the kneepad according to a constrained course without ever obliging the patient to muscularly hold their posture, even if the direction of the force is not in the axis of the femur.
With reference to
The means 6 for increasing the mobilizing force comprise:
The means 7 comprise a guide, for example a rectilinear slide (preferably arranged on the sliding surface) and arranged to constrain the movement of the kneepad 2 parallel to the plane 4 according to a preferably rectilinear course.
With reference to
In this eighth embodiment, only one strap 9 is equipped with a winder 12, the other strap 9 is equipped with a spring 11. These two straps are attached to and continue on from each other, such that the winder has a simultaneous effect on the two straps in order to pull, in a balanced manner, to the right and to the left of the kneepad 2, so as to keep the mobilizing force inside the fixed plane 4 parallel to the user's median plane.
With reference to
In this embodiment, each strap 9 is connected not to the surface 5, but to an element 16 attached to the surface 5 and arranged to shorten the length of each strap 9.
Each element 16 is arranged:
In this embodiment, as in other embodiments, the means for shortening at least one of the linking elements can be motorized.
With reference to
In this embodiment, the means 6 for increasing the mobilizing force comprise means for increasing a volume of an interface arranged inside the kneepad 2 and provided to be arranged between the kneepad 2 and the knee 3.
For this, the kneepad 2 comprises:
Part a) of
With reference to
In this embodiment, the means 6 for increasing the mobilizing force comprise means for increasing a volume of an interface arranged inside the kneepad 2 and provided to be arranged between the kneepad 2 and the knee 3.
For this, the kneepad 2 comprises:
Part a) of
With reference to
In this embodiment, the means 6 for increasing the mobilizing force comprise means for increasing a volume of an interface arranged on the bearing surface 5 and provided to be arranged between the bearing surface 5 and the pelvis.
For this, the device 100 comprises:
Part a) of
The different embodiments in
With reference to
In the embodiments in
The plane 4 is parallel to the plane of
The plane 4 is perpendicular to the surface 5.
The bearing surface 5 forms part of the device 100 and comprises a table, or a bed.
The mobilizing force has a direction parallel to a straight line perpendicular to the surface 5 plus or minus 30°.
The mobilizing force has a direction which forms an angle β with a straight line perpendicular to the surface 5 and passing through the axis 8 or 30, β being:
The value of this angle β decreases during the increase in the mobilizing force.
The value of this angle β:
The means 6 for increasing the mobilizing force are arranged to increase this mobilizing force:
By the distance 18 between the kneepad 2 and the bearing surface 5 or a plane tangential to the bearing surface 5 is meant the distance 18 of the shortest segment connecting a defined point of the kneepad 2 to the bearing surface 5 or to the plane tangential to the bearing surface 5, i.e. the distance along the vertical projection from this defined point of the kneepad 2 onto the bearing surface 5 or onto the plane tangential to the bearing surface 5.
The means 6 for increasing the mobilizing force are arranged to increase this mobilizing force while decreasing the angle β.
The means 7 arranged to constrain the relative movement of the kneepad 2 with respect to the bearing surface 5 according to a constrained course are arranged to constrain the relative movement of the kneepad 2 with respect to the bearing surface 5 according to a rotational movement of the kneepad 2 preferably about an axis of rotation 8 parallel to the surface 5.
The device 100 comprises at least one linking element 9 connecting:
The at least one linking element 9 comprises at least one strap or a rod.
The device 100 comprises, on the bearing surface 5 or on an element attached to the surface 5, a pivot pin 8 of the kneepad 2, the at least one linking element 9 connecting the pivot pin 8 to the kneepad 2 and being arranged to pivot about the pivot pin 8, causing the kneepad 2 to pivot about the pivot pin 8.
The pivot pin 8 can be a mechanical pivot or articulated link or a simple strap stapling point.
The device 100 comprises a mark or a stop 10 arranged to make it possible to position the user's pelvis offset with respect to the pivot pin 8.
The means 6 for increasing the mobilizing force are arranged to increase this mobilizing force by pivoting the kneepad 2 about the pivot pin 8 such that, in projection onto a plane tangential to the surface 5, the pivot pin 8 of the kneepad 2 is offset (typically by at least 5 cm) with respect to the pivot point of the knee 3 with respect to the pelvis.
With reference to
The means 6 for increasing the mobilizing force comprise the pivot pin 8 which, in projection onto a plane tangential to the surface 5 or in projection onto the surface 5 if this surface 5 is flat, is offset with respect to the pivot point 30 of the femur in the pelvis and/or of the knee 3 with respect to the pelvis, as explained previously. The means 6 for increasing the mobilizing force are arranged to increase this mobilizing force by pivoting the elements 9 (straps) about the pivot pin 8.
The two straps are arranged to pull to the right and to the left, respectively, of the sagittal plane of the user whose knee 3 is covered by the kneepad 2 (this sagittal plane passing through the kneepad 2).
The means 7 comprise the two straps, which are arranged to pull, in a balanced manner, to the right and to the left of the kneepad 2, so as to keep the mobilizing force inside the fixed plane 4 parallel to the median plane of the user.
Part a) of
Part b) of
This rotation can be made to happen by an external practitioner (illustrated only in
The distance 18 in the case of part b) of
With reference to
Moreover, the device 100 comprises several positions 19 for fastening the elements 9 to the surface 5 or to an element attached to the bearing surface 5, making it possible to adjust different positions of the pin 8 according to the user's morphology.
The kneepad 2 is detachable thanks to elements 9 through connectors, for example through hooks.
With reference to
With reference to
Each restoring means 11 can be located along (
With reference to
With reference to
With reference to
The at least one linking element 9 comprises an inextensible and/or incompressible rod (of adjustable length) attached to the kneepad 2.
The means 6 for increasing the mobilizing force are arranged to increase this mobilizing force by pivoting the inextensible and/or incompressible rod 9 about the pivot pin 8.
The means 7 comprise the pin 8, which allows a rotation of the inextensible and/or incompressible rod 9 only parallel to the plane 4.
The restoring means 11 is incorporated inside the rod 9.
A button 23 makes it possible to release the length adjustment of the linking element 9 by sliding. Another spring 20 has been provided in order to compensate for the weight of the top part of the device during the adjustment to the extent that the user can apply it to the knee delicately in order to adapt it to different morphologies of users, before pressure is put on by rotation about the pin 8.
With reference to
With reference to
With reference to
With reference to
A button 23 (positioned on the kneepad 2) makes it possible to adjust the length of each strap 9 so as to adapt it to different user morphologies.
The device 100 comprises, preferably for each restoring means 11, means 14 for varying the rigidity of this restoring means 11. Typically, different eyebolts make it possible to define the useful length of the spring 11 (i.e. the number of useful turns of the spring 11) and therefore its rigidity.
With reference to
It can be seen that the device 100 of this embodiment comprises two elements 9.
Each element 9 is inextensible but compressible (for example through a rack system).
Each element 9, right or left respectively, can be connected in turn to the kneepad 2 so that the kneepad 2 is arranged to be applied to the knee, right or left respectively, of the user.
It can be seen that the device 100 of this embodiment comprises two orientable paddles 31, each paddle 31, right or left respectively, being arranged to form a support surface with adjustable inclination for the thigh, right or left respectively, of the user while maintaining the contact with this thigh during the rotation of the kneepad 2 about the pin 8.
In
In
In
With reference to
The means 6 for increasing the mobilizing force comprise a receiving surface attached to the kneepad 2 and forming a corner with the bearing surface 5.
The device 100 moreover comprises means for adjusting the distance between the kneepad 2 and the corner in order to adapt the device 100 to different morphologies of users.
This receiving surface forms the linking element 9 connecting:
The means 7 comprise the corner and the receiving surface of the kneepad 2, which make it possible, as the pelvis sinks into the corner, to keep the direction of the mobilizing force fixed.
The seventh embodiment of the device 100 in
With reference to
Of course, the invention is not limited to the examples that have just been described and numerous adjustments can be made to these examples without exceeding the scope of the invention.
Of course, the various characteristics, forms, variants and embodiments of the invention can be combined with one another in various combinations, provided that they are not incompatible or mutually exclusive. In particular, all the variants and embodiments described previously can be combined with each other.
For example, in variants which can be combined with each other from all of the previously described embodiments:
| Number | Date | Country | Kind |
|---|---|---|---|
| FR1915465 | Dec 2019 | FR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2020/086974 | 12/18/2020 | WO |
