FR3034008A1 - ORTHOPEDIC SEAT - Google Patents

Abstract

The present invention relates to an orthopedic seat of the type comprising a seat (3), a backrest (5) pivotally mounted on said seat (3), means for attaching the patient to said seat, first wedging means (500) capable of to maintain the trunk of the patient in a determined position, second securing means (310, 320) able to maintain the hips and thighs of the patient in a determined position, said first and second setting means (500; 310) being adjustable and lockable in position. Typically, according to the invention, said first wedging means comprise a wedging element (500) which is slidably mounted on each of the sides of said backrest (5) along an axis parallel to the width of said backrest (5).

Description

TECHNICAL FIELD The present invention relates to an orthopedic seat ART PRIOR ART EP2832336 A1 discloses an orthopedic seat which comprises a seat, a backrest pivotally mounted on said seat and adjustable in position according to the depth of the seat and the first and second means of wedging which respectively lock in position the torso and pelvis of the patient. These wedging means are adjustable in position which allows to adapt the width of the seat to the corpulence of the patient.

The first wedging means comprise two lateral wedges, each being fixed to the backrest by a plate and fastening means which cooperate with at least two slots in the folder. It has been found that the width adjustment of the first wedging means was tedious; on the one hand it is necessary to use tools for fixing the plates, on the other hand, the seat being covered with a cover it is necessary to remove the latter to access the turntables and backrest. The second setting means being fixed on the seat in the same way, they have the same disadvantages. Moreover, it has been found that the width adjustment is not only useful on an ad hoc basis, to adapt the size of the seat according to the growth of the patient, when the latter is a child. It is also useful in everyday life, to adapt the width of the seat according to the clothing of the patient. In fact, winter clothes such as jackets or anoraks can be bulky. If the width of the seat is not suitable, the patient can not be properly dressed. In practice, the width of the seat is adapted so that the patient can wear a warm clothing but neglects to reduce the width of the seat when removing the garment, the setting being too long and tedious. It follows that the patient is no longer properly maintained in the seat which harms his treatment.

OBJECT OF THE INVENTION A first object of the present invention is to provide an orthopedic seat that solves all or part of the technical problems related to the aforementioned prior art.

Another object of the invention is to provide an orthopedic seat which allows the back of the patient to be wedged efficiently, quickly and without effort, in particular in a standing position. SUMMARY OF THE INVENTION The present invention proposes a seat orthopedic device comprising a seat, a backrest pivotally mounted on said seat, means for attaching the patient to said seat, first wedging means adapted to hold the trunk of the patient in a determined position, second wedging means able to hold the hips and the thighs of the patient in a determined position, said first and second wedging means being adjustable and lockable in position. According to the invention, typically, said first wedging means comprise a wedging element which is slidably mounted on each of the sides of said backrest along an axis parallel to the width of said backrest.

The sliding arrangement makes it easy to adjust the position of the first blocking means without moving the patient and without disassembling a seat element. The adjustment can also be finer than that of the seat of the prior art. The backrest may comprise an opening and the seat may comprise a back support element which has a bearing face disposed in said opening, said support element is mounted adjustable in position according to the height of said backrest and / or according to the depth of said seat and / or in that the angle formed between said bearing face and the plane of said backrest is adjustable and said support element of the back is adapted to be locked in position.

The presence of this support element makes it possible to correctly position the patient according to the depth of the seat, whether in a sitting or semi-standing position. It increases the comfort of the seat while improving the maintenance of the patient, especially at the level of his back and more particularly his lumbar. If the patient is equipped with a rigid support corset, the support element, by its adjustable position, can bear against the surface of the corset and maintain the patient. This bearing element possibly in cooperation with the cushion cushioning described later, allows to adjust the depth of the seat without having to mount the sliding backrest on the seat. The seat of the invention is thus easier to manufacture than that of the prior art. Advantageously, the seat has a curved rear portion which extends in said opening substantially parallel to said folder. This bent up portion of the backrest improves the patient's posture, especially when opening up to the edge of the seat. Advantageously, said second wedging means comprise on each side of said seat at least one wedging element slidably mounted along an axis parallel to the width of said seat. This slidably mounted member also makes it easy and quick to adjust the position of the second staging means without moving the patient. The seat may, for example, have on each side, two wedging elements, one disposed at the patient's pelvis the other, closer to the front edge of the seat, disposed at the thighs of the patient; each of the two wedging elements being slidably mounted, adjustable in position according to the width of the seat and able to be locked in position independently of the other element, it is easy to position and wedge the patient on the seat, the wedging of the thighs being dissociated from that of the pelvis. Advantageously, said wedging elements of said first wedging means 20 and / or said wedging elements of said second wedging means are also slidably mounted respectively in a direction substantially perpendicular to said back and in a direction substantially perpendicular to said seat. We can thus adapt the seat according to the size of the patient and its template.

The second wedging means may comprise a cushioning cushion, mounted substantially in the middle of the front edge of said seat, sliding according to the depth of said seat, and adapted to be locked in position. This cushion allows itself or possibly in cooperation with said support element of the aforementioned back to wedge the patient according to the depth of the seat. The cushioning cushion can be slidably mounted on the end of an arm whose one end is fixed to said seat.

The means for mounting and locking in position of the various elements are not limited according to the invention. Thus, the elements can be slidably mounted and locked in position by specific locking means, such as stops or the like.

Advantageously, said wedging element of said first wedging means and / or of said second wedging means and / or said wedging cushion cooperates with a threaded rod which can be rotated by means of a thumbwheel. The rotation of the threaded rod causes the element to be translated in the desired direction as the user / patient turns the wheel. The threaded rod and the wheel simultaneously make it possible to modify the position and to lock in position the element / cushion considered without the use of specific external locking means. The user can therefore adjust and lock in position in a single action that is to turn the wheel. Depending on the pitch of the threaded rod, it is possible to obtain a very fine adjustment of the position of the different wedging elements and / or the cushion. The seat thus obtained is robust; the locking in position is effective and the absence of separate blocking means avoids any risk of loss of the latter and thus makes the seat of the invention particularly convenient. The seat may further comprise a substantially vertical support on the end of which said seat is mounted, including pivoting. The seat can be pivotally mounted on the support around a vertical axis passing through the support and parallel to the latter. It can also be rotated at a horizontal axis, the front and back of the seat can be raised or lowered to the ground. It can also be pivotally mounted according to the two aforementioned axes. The support is not limited according to the invention; it advantageously comprises wheels for its displacement. It may comprise two parallel and substantially horizontal spars when said support is placed on the ground and at least one reinforcing element which connects said spars.

Such a support has proved to be strong and resistant to twisting, in particular. According to one embodiment, which makes it possible to move the patient from a sitting position to a semi-upright position, as described in document EP2832336 A1, said seat and said backrest can be adapted to be locked in a semi conformation. -debout wherein said seat is inclined in the direction of its front edge ° and said backrest forms with said seat an angle substantially greater than 90 ° and said seat may further comprise means forming a knee-support which are shaped and 5 arranged to receive the knees of a patient sitting on said seat, when the latter is in semi-standing conformation. BRIEF DESCRIPTION OF THE FIGURES The present invention will be better understood on reading the following description of a detailed exemplary embodiment, presented by way of nonlimiting example and which refers to the appended figures, provided by way of non-limiting example. limiting, among which: FIG. 1 is a perspective view of a particular embodiment of the seat of the invention; FIG. 2 is a side perspective view of the seat 15 shown in FIG. 1; and FIG. 3 is a perspective view from above of a particular embodiment of the back support member of the seat shown in FIGS. 1 and 2. DETAILED DESCRIPTION OF THE INVENTION Referring to FIGS. 1 and 2, the particular embodiment represented here of the seat of the invention comprises a support 1 equipped with wheels placed on the ground S, a seat 3, a backrest 5 rotatably mounted on the seat 3 and means forming a wedge 7. The means of attachment of the patient to the seat are not shown for the sake of simplification; they may be formed of a belt attached to the seat or a harness which also makes it possible to attach the bust of the patient. The support 1 comprises a vertical tube 11; the seat 3 is pivotally mounted at the end of a tube (not referenced) which slides in the tube 11 above. An adjustment knob 13 makes it possible to adjust the height of the seat 3 30 by sliding the two aforesaid tubes and locking them in position. As shown in FIG. 2, the seat is pivotally mounted on the tube 11; it can thus rotate about a vertical axis, parallel to the tube 11 and be locked in position about this axis; it can also pivot about 3034008 6 of a horizontal axis X parallel to the width of the seat 3. The seat 3 can thus be inclined, the front edge towards the ground S, or the rear edge towards the ground S and locked in the chosen position. Blocking means (not visible) allow to fix the seat position 3 relative to each of the aforementioned axes 5. As shown in FIG. 1, the support 1 also comprises two uprights 15 which are parallel and horizontal. These two uprights 15 are equipped with the aforementioned wheels. A reinforcing bar 17, horizontal, connects the two uprights 15 and supports the tube 11. The reinforcing bar 17 and the uprights 15 ensure good stability of the support 1 on the ground S and strengthen its resistance to torsion. As shown in FIG. 1, the seat 3 comprises a seat plate 31 which is rotatably mounted at the end of the tube 11. The rotational position of the seat plate 31 can be blocked. The seat plate 31 supports a seat cushion 300, made of foam. The seat cushion 300 is integral with the seat plate 31. It has two curved rear portions 301 separated by a slot 303. The seat cushion 300 has a front edge 305 which forms a point protruding beyond the edge before 311 of the base plate 31.

The backrest 5 has an opening extending from its lower edge, adjacent to the seat plate 31, to more than half the height of the seat 5. The opening 5 is surrounded by vertical portions of the seat. backrest 5. The backrest 5 is also covered with foam. The backrest 5 comprises first wedging means which comprise lateral backrest blocks 500. The lateral backrest blocks 500 extend in a vertical plane and perpendicular to the backrest 5, in the direction of the front edge of the seat 3. Both sides of the backrest 5 are each equipped with a backrest lateral block 500. Each backrest lateral block 500 is mounted at the end of a tube 501 which slides in a tube 502 (visible in FIG. mounted on the rear face of the backrest 5 by means of a mechanism not shown, activated by the wheel 503. The mechanism activatable by the wheel 503 comprises a threaded rod which is rotated by the wheel 503. The rotation of the threaded rod The wheel 503 therefore makes it possible at the same time to modify the length of the portion of the tube 501 housed in the tube 502 (see Fig. 2) and to lock the 501 in position in the tube 502. (see Fig. 2) set derr the folder 5, above the opening in the latter. The lateral shims of the backrest 500 can thus be more or less spaced apart on either side of the backrest 5 and locked in position by means of the knobs 503. The adjustment of each of the shims 500 is independent. The width adjustment of the first wedging means is therefore very easy and fast; it does not require removing the foam from the backrest 5 or removing the patient from the seat.

As shown in FIG. 1, the seat also comprises a support element of the back 510 which has a bearing surface 511 facing the seat 3. This bearing element 510 is mounted on the base plate 31; the position of the support element of the back 510 can be adjusted and locked according to the height of the backrest 5, and in a direction parallel to the depth of the seat 3. The support face 511 can also be more or less inclined towards the seat 3 or towards the top of the backrest 5. An embodiment of the support element of the back 510 will be more fully described with reference to FIG. 3. With reference to Figs. 1 and 2, the seat comprises second locking means 20 which block in position the thighs and hips of the patient. These second wedging means comprise two lateral seat wedges 310. Each lateral seat wedge 310 extends in a vertical plane and parallel to the depth of the seat 3. The lateral seat wedges 310 are each mounted to the end of a tube 313 which slides in another tube 25 (not visible), itself fixed on the base plate 31 and parallel to the front edge 311 of the latter. This tube not visible in the figures is covered by the seat cushion 300. A wheel 315 allows via a mechanism similar to that described with reference to the lateral backrest blocks 500, to slide the tube 313 in the other aforementioned tube. Each lateral seat cushion 310 may therefore be more or less spaced apart from the seat 3 by translation; each shim 310 is also locked in the chosen position which can only be modified by actuating the wheel 315. The adjustment and blocking in position is thus carried out in a single movement without requiring the use of other means of rotation. blocking. The adjustment of each lateral block 310 is independent of the other. As shown in FIG. 1 and in FIG. 2, the outer face of the seat block 310 is equipped with a fixing tube of a shelf 317 (not shown). According to a variant not shown, the backing blocks 500 are also adjustable and lockable in position according to the height of the backrest 5. According to a variant that can be combined with that mentioned above, the seat blocks 310 are adjustable and lockable in position according to a vertical axis, perpendicular to the tube 313. As shown in FIGS. 1 and 2, the second wedging means also comprise a substantially triangular cushion cushion 320 which is mounted substantially in the middle of the front edge 311 of the base plate 31. This cushion cushion 320 is able to come between the patient's legs and improves the timing of the hips and thighs of the latter due to its cooperation with the seating blocks 310. In the embodiment shown here, the cushioning cushion 320 is mounted at the end of an arm 322. The arm 322 has an end fixed to the front edge 311 of the seat plate 31 and a horizontal portion on which the cushioning cushion 320 is slidably mounted and able to be locked in position. A wheel 325 makes it possible to slide the cushion cushion 320 horizontally; the cushion cushion 320 can be moved in translation only by rotation of the wheel 325; it is thus locked in position and can ensure its stall function.

As shown in Figs. 1 and 2, the seat also comprises knee-forming means 7. These knee-forming means 7 comprise a rod 71, integral with the seat 3, in particular of the seat plate 31 and extending towards the seat. S floor, forming an angle substantially equal to 135 ° with the seat plate 31. A knee plate 73 is slidably mounted on the rod 71; it can be locked in position on the rod 71. The plate rests knees comprise two portions disposed on either side of the rod 71 on which the patient can come to bear his knees and shins.

According to a variant not shown, the inclination of the knee plate 73 relative to the rod 71 can be adjusted; the knee plate 73 can be locked in position according to the chosen inclination. With reference to FIG. 3, the backing member 510 will now be described in more detail. The support element 510 is pivotally mounted around two axes X1 and X2 parallel to each other and parallel to the width of the seat 3. In FIG. 3, the seat cushion 300 has been removed. The seat plate 31 is apparent. The backing element 510 which is a cushion is fixed on the base plate 31 by means of a tube 512 which slides in a tube 317 integral with the seat plate 31. The tube 31 is disposed at the level of the slot 303, when the seat cushion 300 is fixed on the seat plate 31. A threaded rod equipped with a knob 513 is used to lock the tube 512 in position in the tube 317. The Support element 510 can therefore be adjusted and locked in position according to the height of the backrest 5.

With reference to FIG. 3, the bearing element 510 is rotatably mounted about the axis X1 situated above the tube 317 by means of a hinge 516. A link 519 connects the hinge 516 to a second hinge 517 mounted on the hinge 517. The second articulation 517 The articulations 516 and 517 are each formed of two toothed elements 20 which cooperate with each other by interlocking, a threaded rod and a wheel which makes it possible to by its rotational movement around the threaded rod to come and press the two aforementioned tooth elements against each other which has the effect of blocking the rotation of the latter. The hinge 517 makes it possible to pivot the support element of the back 510 around the axis X1 and to lock it 25 in the chosen position. With reference to FIG. 3, the first hinge 516 makes it possible to rotate the end of the link 519 around the axis X2, which makes it possible to adjust the position of the support element of the back 510 in the opening of the backrest 5 according to the height of the latter. The hinge 516 also makes it possible to modify the position of the support element with respect to the depth of the seat 3, that is to say to move it more or less away from the opening of the backrest 5. towards the front edge of the seat 3. The second hinge 517 simply allows to modify the angle formed by the bearing surface 511 of the bearing element 510 with respect to the seat 3 and in particular to An example of use of the embodiment of the seat of the invention described here will now be described with reference to FIGS. 1 to 3.

The patient is installed on the seat of the invention. His back comes into contact with the backrest 5 (covered with a cushion) while his thighs and his pelvis come to bear on the seat 3 (also covered with a possibly removable cushion). The position of the backing wedges 500 and that of the seat blocks 310 is then adjusted by simply actuating the rollers 503 and 315. Simultaneously or consecutively, the cushion cushion 320 is positioned by actuating the wheel 325, between the legs of the patient. The position of the support element 310 is adjusted in height, in inclination and in depth relative to the seat 3, as explained with reference to FIG. 3, so that the bearing surface 311 of the back support member 310 15 bears, substantially at the lumbar level of the patient. The patient is attached to the seat if it is not already done. The spacing of the lateral backrest blocks 500 and the seat blocks 310 is quick to adjust simply by turning the aforementioned knobs. Blocking in position of the lateral shims 500 and 310 is also ensured without having to manipulate additional blocking means. For the transition to the semi-upright position, the backrest 5 is unlocked and pivoted so that it forms with the seat 3 an angle 13 substantially equal to 115 °. The seat 3 is then unlocked so that it can pivot on the support 1 about an axis parallel to its front edge 311. The rear edge of the seat 3 is lifted. The patient is attached to the seat. seat, it does not fall from the latter. The knee plate 73 is slid along the shaft 71 so as to place it against the knees of the patient. The position of the knee plate 73 is blocked and its inclination of the bearing face 233 is adjusted. When the knee plate 73 is in the desired position, it is locked in position. The patient is thus placed temporarily in a semi-upright position, which contributes to his treatment or at least maintenance of his physical condition, including the maintenance of his muscles.

3034008 11 To properly stall the back of the patient in a semi-upright position, it is still possible to adjust the position of the support element of the back 510.

Claims (11)

1. An orthopedic seat of the type comprising a seat (3), a backrest (5) pivotally mounted on said seat (3), means for attaching the patient to said seat, first wedging means (500) adapted to maintaining the trunk of the patient in a determined position, second securing means (310, 320) able to hold the hips and thighs of the patient in a determined position, said first and second setting means (500; 310) being adjustable and lockable in position, characterized in that said first wedging means comprise a wedging element (500) which is slidably mounted on each of the sides of said backrest (5) along an axis parallel to the width of said backrest (5). 2. Orthopedic seat according to claim 1, characterized in that said backrest (5) comprises an opening, in that it comprises a support element of the back (510) which has a bearing face (511) arranged in said opening and in that said support element (510) is mounted adjustable in position according to the height of said backrest (5) and / or according to the depth of said seat (3) and / or in that the angle formed between said bearing surface (511) and the plane of said backrest (5) is adjustable and in that said support element of the back (510) is adapted to be locked in position. 3. Orthopedic seat according to claim 2, characterized in that said seat (3) has a curved rear portion (301) which extends in said opening substantially parallel to said backrest (5). 4. Orthopedic seat according to any one of the preceding claims, characterized in that said second wedging means 25 comprise on each side of said seat at least one wedging element (310) slidably mounted along an axis parallel to the width of said sitting (3). An orthopedic seat according to any of the preceding claims, characterized in that said wedging members (500) of said first wedging means and / or said wedging members (310) of said second wedging means are also slidably mounted respectively in a direction substantially perpendicular to said backrest (5) and in a direction substantially perpendicular to said seat (3). 3034008 13 6. orthopedic seat according to any one of the preceding claims, characterized in that said second wedging means comprise a cushion cushion (520) mounted substantially in the middle of the front edge of said seat (3) and sliding according to the depth of said seat (3) 5 and in that said cushioning cushion (520) is adapted to be locked in position. 7. Orthopedic seat according to claim 6, characterized in that said cushioning cushion (520) is slidably mounted on the end of an arm (322), one end of which is fixed to said seat (3). 8. Orthopedic seat according to any one of the preceding claims, characterized in that said wedging element of said first wedging means (500) and / or said second wedging means (310) and / or said cushioning cushion (520). ) cooperates with a threaded rod adapted to be rotated by means of a wheel (503; 315; 325). 9. Orthopedic seat according to any one of the preceding claims, characterized in that it further comprises a support (1, 11) substantially vertical on the end of which said seat (3) is mounted, including pivoting. 10. Orthopedic seat according to claim 8, characterized in that said support (1) comprises two parallel longitudinal members (15) and substantially horizontal when said support (1) is placed on the ground (S) and at least one reinforcing element (17) which connects said longitudinal members (15). 11. orthopedic seat according to any one of the preceding claims, characterized in that said seat (3) and said backrest (5) are adapted to be locked in a semi-upright conformation in which said seat (3) is inclined in the direction of its front edge ° and said backrest (5) forms with said seat (3) an angle substantially greater than 90 ° in that it further comprises knee support means (7) which are shaped and arranged to receive the knees of a patient sitting on said seat, when the latter is in semi-standing conformation.