EP2311421B1 - Delordosing device - Google Patents

Description

The invention relates to a delordosation device for users of a rehabilitation aid, in particular for the verticalization of a seat / upright trainer or a wheelchair, with a seat and support aids for the user, wherein the seat is pivotally mounted for verticalization.

Acetator devices are needed for a variety of purposes, such as seat / floor trainers or wheelchairs where a verticalization function is present. This is understood to mean a system which allows a user with movement restrictions to be transferred from a sitting position to a standing position. Typical movement restrictions of users of such a seat / upright trainer or a wheelchair can be based on all conceivable disease or disability forms. These include, for example, spasticity, paraplegia, apallic syndrome, weakening or loss of the musculo-skeletal system due to neurological disorders (MS, hemiplegia), as well as disability symptoms of pronounced contractures due to significant shortening of muscles and ligaments. For example, a therapeutic measure can be carried out with the aid of a seat / upright trainer. For this purpose, seat / standing trainers but also wheelchairs are known which have a seat on which the user can sit and is additionally fixable by suitable support aids. By pivoting the seat is achieved in this case that the user can be transferred to a standing position in order to eliminate by therapeutic measures, at least partially the movement restrictions or to treat them.

Vortikalieierungsvorrichtungen are known in wheelchairs, for example from the European patent EP 0 815 822 B1 , This wheelchair allows the wheelchair user to be brought in a nearly vertical position and to almost take the posture of a standing person. Especially for wheelchair users who have a limited or unrestricted upper limb musculoskeletal system, or all nonstandard individuals, it is extremely helpful if the posture taken by the verticalizer would correspond to a standing position of a non-restrained person. For this purpose, it is necessary to support the skeleton in its function so that this can take its maximum supporting and standing function according to his possibly limited ability. However, this always results in the problem that the endgradige, that is a corresponding anatomically possible range of motion corresponding hip extension from the musculoskeletal system of the wheelchair user is often not achieved. This is especially the case with spasticity of the hip flexor or poor posture of the pelvis. Endoscopic contracture of the hip, flexure of the hip or diplegics with impaired muscle function may complicate end-stage extension of the hips and cause hyperlordosis.

Sitting / standing trainers are used here as therapeutic measures in clinics and therapy facilities to motivate patients with reduced mobility to actively participate in life and avoid secondary illnesses due to prolonged sitting or lying down. Essentially, the sit / stand trainers are designed to protect patients from further spinal damage, while neurological patients can reestablish autonomous standing using the sit / stand trainer. For this purpose, it is possible with the help of a seat / stance trainers not only to learn the standing functions, but also to use the gained space in sufficient form. Sitting / standing trainers are therefore in the therapeutic area used in hospitals, in the private sector for self-therapy or integrative area and usually serve not only for a patient, but can, if necessary, be adapted again and again to different patients of different body size.

Seating surfaces for wheelchairs and seat / floor trainers with a pivotable mechanism are known from the prior art. In such an embodiment, the pelvis is pressed but only forward. As a result, the pre-tilted pelvis causes a hyperlordosis (strong S-shaped curvature, also known as a hollow back) of the spine during erection. A consequence of the hyperlodose is a strong compression in the facet joints of the lumbar spine with resulting back pain. In the long term, hypermobility and instability in these back joints can result in possible nerve restriction / entrapment. The ultimate goal of a verticalization must therefore be a physically favorable vortex support.

From the DE 38 15 435 A1 is a chair with a pivotable about a pivot axis forward seat known. To erect a person with restricted mobility, it is provided that the seat is pushed forward, in order then to be pivoted by appropriate aids about a pivot point. A movement restricted user of this piece of seating furniture would be transferred to a semi-reclining or kyphotic seating position by a forward sliding seat and the receding seatback before the uprighting operation begins by pivoting the seat without any benefit.

From the DE 10 2006 011 710 B3 is a wheelchair with a seat displacement known so that a restricted position can be erected in a horizontal or vertical position. This wheelchair in this case provides that a movement of the backrest relative to a fixed frame takes place, which has a pivot point for the seat. Here is provided that when folding down the backrest by a Kantelhebel this seat is raised simultaneously in the rear area to spend both the seat and the backrest in a nearly horizontally oriented position. Following this, it is possible to raise the base frame to a vertical position. Also in this case, the required movement for pelvic rotation is not performed.

From the EP 1 103 242 A2 is a chair known, which can be used to relocate a restricted position in a horizontal or vertical position. In both cases, it is provided that the seat is first moved in the direction of the backrest, before an increase in the seat takes place. As a result of this measure, the pelvis of the person with restricted mobility is put into a negative pelvic rotation, which prevents stretching when straightening up.

It is an object of the present invention to provide a further developed delordosation device which enables the users to carry out a verticalization without adverse consequences of the musculoskeletal system.

According to the invention is provided for solving the problem that for vertical first partial pivoting of the seat takes place before a shift of at least a portion of the seat relative to the original position of the backrest is carried out to the front. Further advantageous embodiments of the invention will become apparent from the dependent claims.

The delordation system according to the invention works with an additional movement acting directly on the shortened musculature, a pelvic rotation. The direct result of a pelvic rotation is an erection of the pelvis by a pelvis rotating force and causes an immediate deletion (Extension) of the spine and thus the discharge of the intervertebral discs. Until now, these effects could only be carried out in the context of a manual therapy, which accompanies the standing training in the sitting / standing coach physiotherapeutically. The detachable seating system according to the invention simulates the therapeutic movement sequence by displacing the seat during verticalization. The expansion pressure built up in a seat upholstery makes it possible here to pull the rear basin downwards over the central seat surface. The introduced force then achieves the erection of the pelvis via the hip joints with a significantly improved stretching effect on the muscles of the lower extremities. The pelvis is erected in a rotational movement.

In a first embodiment, it is provided that the seat is integrally formed and the entire seat is additionally slidably mounted. The seat can thus be raised with initiation of verticalization behind to achieve the desired standing position of the patient. By a displaceable storage, which can be performed, for example, manually but also supported by an electric motor, a rotational movement is exerted on the pelvis, which allows immediate delignification (extension) of the spine. Due to the pivoting and displacement of the seat surface of the pelvis, the rotational movement is thus forced kandal with increasing erection. As a result, the Vertlkalisierung is facilitated for the patient and does not cause by the rotational movement of the pelvis to a hyperlordosis. This particular advantage is already achieved by a first simple embodiment with a one-piece seat.

In a particular embodiment of the invention it is provided that the seat is formed at least two parts and a first seat part is pivotally mounted, while a second seat part is pivoted together with the first seat part and slidably mounted relative thereto.

Due to the two-part seat with a first seat part, which is pivotable and a second seat part, which is mounted pivotably and slidably, it is possible to ensure sufficient support and at the same time by a forced pelvic rotation to achieve verticalization through the seat and a Entlordosierung (Extension) of the spine and thus to achieve the relief of the intervertebral discs. As a result, the user or patient getting up in assisted form is facilitated by, for example, a sitting / standing coach or a wheelchair with verticalization function. For example, in strong muscular tension (flexor pains) or shortening of the muscular system, especially in the lower extremities, or a malposition of the pelvis forward, the seat according to the invention is extremely helpful when erecting.

In order to carry out a verticalization, it is provided here that the seat surface can be moved from a horizontal position into an approximately vertical position so that a defined seat depth is present for the user's or patient's pelvis during the movement and supported during the movement.

For this reason, it is particularly advantageous if the seat is made in two parts, wherein the pivoting and displacement of a part of the seat synchronized or preferably the displacement can be delayed. By the synchronized movement is hereby ensured that the desired pelvic rotation occurs at a certain time, initially pivoting takes place until the displacement of the second Sitztlächenteils causes the initiation of the pelvic rotation. Synchronized pivoting and shifting can likewise be coordinated with one another in terms of time or the shift can take place at different time-offset speeds.

In one embodiment, it is provided that the seat is designed at least two parts, wherein a dividing line can extend transversely to the sitting position. Thus, the seat consists of a front part seat surface and a rear part seat surface, wherein the rear part seat surface is slidably mounted relative to the front part seat surface. Thus, the advantages of the invention are achieved with such an embodiment, wherein the movement of the rear partial view area can be done either manually or optionally via a drive. A manual shift, for example, when used in a physiotherapeutic treatment helpful when a patient is still no endgrade stretching is possible and the Entlordosierung example to be used in a 50% erection.

In a particular embodiment, it is provided that the first seat surface part is U-shaped and has a front seating area for thigh guidance and two lateral seating surfaces for stabilizing the seating position and the second seat surface portion is formed as a central seating area, which between the two lateral seating surfaces of the first seat portion is slidably mounted.

By forming a first seat part in an example U-shaped form a stabilization of the seating position is achieved, while the desired movement of the pelvis is effected by the second sliding seat part. The U-shaped enclosure of the inner central seat part is in this case basically not arranged slidingly to ensure the correct position of the seat depth with a flat, pressure-relieving support of the thighs and the seat legs (tubes) in the sitting position. A good seating position is important because the user of the sit / stand trainer can only interrupt his standing workout with rest periods. For example, in a sitting / standing coach, the seating position will be much more often used than the standing position. By the aforementioned embodiment, for example Achieves an optimal pressure distribution in the region of the central seat part and at the same time causes a pelvic rotation during the verticalization.

For this purpose, it is provided that the second seat surface part relative to the first seat surface part performs a relative movement of 2 to 12, preferably 4 to 9 cm. This relative movement between the two seat parts is sufficient to cause the desired pelvic rotation during erection. To avoid bruising, at least a small gap of 2.5 cm remains between the seat parts during the displacement.

In order to ensure sufficient stability of the seat this is supported on frame members or structural parts of the seat / stander or for example a wheelchair, wherein, the sliding seat part is mounted on a slide, which is fixed to a frame member or structural part. The slide is in this case made extremely flat and is located below the seat, which can be excluded by appropriate stability of the slide tilting or bending under appropriate load. The sliding seat part can in this case be mounted manually, electromotively via, for example, a spindle drive or a hydraulic drive in the slide rail. A manual adjustment of the sliding seat part is the simplest embodiment, wherein by a therapist when erecting the patient, that is, the verticalization, the sliding seat part can be moved manually. In order to facilitate the movement of the sliding seat portion for the patient in the self-therapy, an electric motor drive, such as a spindle drive, or a hydraulic drive may be provided, which performs the displacement of the rear seat part either via a manual hand control or via a control device. By a spindle drive or hydraulic drive this is simultaneously ensured that the desired Position of the sliding seat part can be adjusted with millimeter precision. In this case, it is further possible that when initiating the verticalization function of the seat / upright trainer or the wheelchair, the rear sliding seat part either delayed or optionally synchronized with the pivoting of the front seat part performs the required movement for pelvic rotation.

Alternatively, there is the possibility that the sliding seat part is pressed by a gas spring, which is supported on the frame member or structural part, in a relation to the non-displaceable seat surface part remote position. That is, the gas spring would keep the sliding seat part always fixed in the direction of the backrest, however, to carry out the required sliding movement is further provided a webbing, which on the other hand on the frame member or structural part and the sliding seat part on the other hand can be fixed. The webbing serves to pull the slidable seat portion against the force of the gas spring toward the front seat portion. Due to the length of the webbing and the onset of verticalization, that is pivoting the entire seat, a movement of the seat is effected due to the mechanism used, the webbing pulls the sliding seat part forward toward the fixed seat part. For this purpose, alternatively, there is the possibility that the sliding seat part has a roller guide, which is pressed along a curved path in a verticalization of the seat against the force of the gas spring in the direction of the non-displaceable seat surface part. With the help of the roller guide and curved track a likewise arcuate movement of the seat surface is achieved, which in turn causes the rear sliding seat part moves toward the front fixed seat part against the force of the gas spring.

As far as a webbing is used to move the rear seat part, can be adjusted via a deflection of the webbing or a shortening of the strap, the timing of displacement of the rear seat part, in particular the possibility exists that by loosening the strap, the sliding seat part in the rear position remains and thus the Entlordosierung can be deactivated. When returning from the standing position in the sitting position, this ensures the gas spring for a return of the sliding seat part to its original position. This ensures that the user of the seat / stance trainer sits back in the position in which he originally started his stand-up training after his stand-up training. Thus, an exact, individually required by the doctor and therapist positioning as often as is repeatable.

The present invention is suitable for retrofitting into existing seat / floor trainers or wheelchairs. Normally, the seat consists of a fixed seat plate, which is integrated in the seat / upright trainer or wheelchair. The Entlordosierungsvorrichtung invention is subsequently integrated instead of the existing fixed seat plate or can be provided directly in a new construction of a seat / stance trainer or wheelchair.

The embodiments of the invention described here allow both the use of manually and hydraulically or electromechanically operated verticalization systems. In particular, a variant is conceivable that the displacement of the seat by electric motor or hydraulically provided by the user himself or can be adjusted depending on the vertical angle to his needs.

The basic structure of a typical sit-stand trainer consists of a headrest, a backrest, a stomach / Brustpelotte, an armrest and the seat and a Unterschenkelpelotte and a footrest. So that the user can take the sitting position, in this case are preferably the Abdominal and Brustpelotte and the lower leg support and the armrests designed to be pivotable. After reaching the sitting position, it is possible to adapt the abdominal pad, chest pad and lower leg pad to the size of the user. For the therapeutic exercises, the patient is transferred from a sitting position into a standing position, whereby, according to the invention, this process is facilitated or only made possible for the patient by a pelvic rotation. For this purpose, the seat is pivotally and partially displaceable formed in the Entlordosierungsvorrichtung invention, so that the pelvis of the user can perform a pelvic rotation.

The invention will be explained again with reference to the figures.

Fig. 1

in einer perspektivischen Seitenansicht einen Sitz-/Stehtrainer mit einer horizontal ausgerichteten Sitzfläche,

Fig. 2

in einer perspektivischen Seitenansicht den aus Figur 1 bekannten Sitz-/Stehtrainer mit einer vertikalen Ausrichtung der Sitzfläche,

Fig. 3

in einer Ausschnittvergrößerung die Sitzfläche des Sitz-/Stehtrainers,

Fig. 4

ein Piktogramm zur Erläuterung der Drehbewegung des Beckens und

Fig. 5

in einer perspektivischen Ansicht einen Rollstuhl mit einer erfindungsgemäßen Sitzfläche.

It shows

Fig. 1

in a perspective side view of a sitting / standing coach with a horizontally oriented seat,

Fig. 2

in a perspective side view of the FIG. 1 known seat / floor trainer with a vertical orientation of the seat,

Fig. 3

in a cut-out enlargement, the seat of the seat / upright trainer,

Fig. 4

a pictogram explaining the rotation of the pelvis and

Fig. 5

in a perspective view of a wheelchair with a seat surface according to the invention.

FIG. 1 shows a perspective side view of a sitting / standing coach 1 in an approximately horizontal seating position. The sitting / standing coach 1 consists of a base frame 2, which is equipped with a seat surface 3. The entire sitting / standing coach 1 rests on front rollers 4 and rear rollers 5. At the level of the front rollers 4, a vertical construction part 6a is arranged in the form of a stem, which is provided for receiving the knee braces 7. The knee braces 7 are individually adjustable via a pivoting device 8.

The seat 3 is functionally supported by armrests 10 and a therapy table 11 and a headrest 12. The therapy table 11 is in this case formed both laterally and rearwardly via corresponding bearings via a pivot arm 13 and a common pivot axis 18 of the armrests 10 pivotally. A single armrest 10 may also be pivoted rearwardly about the pivot axis 18 for the displacement of a patient.

The seat 3 is an integral part of the verticalization function of the seat / upright trainer 1, in that the entire seat surface 3 can be vertically aligned, thus displacing the patient from a sitting to a standing position. In the lower area, in this case, the patient is held by the knee braces 7 and footrests 15, while the pelvis is supported by the seat surface 3, which is designed to pivot in a nearly vertical position. By a backrest 14 of the patient is additionally fixed, in addition by a chest and abdominal pad 23, a fixation of the patient is possible.

In a simple embodiment, the seat surface 3 may be designed in one piece, the entire seat surface being displaceably mounted, preferably by a slide rail. By pivoting and displacement of the seat 3 with increasing erection the pelvis is the rotational movement imposed kandal, whereby the verticalization is facilitated for the patient and thus by the movement of the seat 3, the rotational movement of the pelvis does not lead to an unwanted Hyperlodose. This particular advantage is already achieved by a first simple embodiment with a one-piece seat surface 3.

In FIG. 1 a two-part seat 3 is shown, with a first fixed seat part 3a, which is only pivotally mounted and a second sliding seat part 3b, which is pivoted together with the first seat part 3a and slidably mounted with respect to this. By this particular embodiment of the seat 3, a further improved possibility is created to assist a forced pelvic rotation to achieve a verticalization through the seat parts 3a, 3b, in particular a Entlordosierung (extension) of the spine and thus a relief of the intervertebral discs is achieved. For this reason, the seat is divided into the seat parts 3a, 3b, wherein the pivoting and displacement of a portion of the seat can be delayed or possibly synchronously. By the synchronized movement is hereby ensured that the desired pelvic rotation occurs only at a certain time, initially a Teilverschwenkung occurs until the displacement of the second seat part 3b supports the initiation of pelvic rotation. To perform the verticalization is provided here that the seat from a horizontal position to an approximately vertical position according to FIG. 2 is transferred, so that the pelvis of the patient is supported during the movement and after completion of the movement. By a belly pad on the therapy table or a waist belt, the contact pressure on the seat surface part 3b is increased.

In this case, the first seat surface part 3a is U-shaped for the lower leg guide, two lateral fixed seat areas 3c, 3d being designed to stabilize the sitting position. Through the side seating areas 3c, 3d and the fixed seat 3a, an optimal blood flow is achieved in the sitting position of the thighs. By contrast, the second seat surface part 3b is designed as a central seating area, which is displaceably mounted between the two lateral seat areas 3c, 3d of the first seat surface part 3a. In this way, an optimal pressure distribution in the region of the central seat surface part 3b is achieved, wherein the second seat surface part 3b relative to the first seat surface part 3a performs a relative movement of 2 to 12 cm, preferably 4 to 9 cm. This slight relative movement already suffices between the two seat surface parts 3a, 3b in order to bring about the desired pelvic rotation during erection. To avoid pinching, at least one small gap 9 remains between the seat surface parts 3a, 3b.

By the second sliding seat part 3b, the desired pelvic rotation is triggered in the novel construction. The U-shaped enclosure of the inner central seat part 3b in this case is not arranged slidingly to ensure in the sitting position the correct adjustment of the seat depth with a flat, pressure-relieving support of the thighs and the seat legs (tubes). For this reason, the second alternative represents an optimal solution, whereas the first alternative presented represents a low-cost delordation system.

The central seat surface part 3b is mounted on a slide rail 19 to allow the desired displacement. By a gas pressure spring 20, the seat surface part 3b is pressed in a position facing away from the first seat part 3a. By an adjustable length webbing 21, this position is limited adjustable. The webbing 21 is connected on the one hand to the construction part 6b of the seat / upright trainer 1 and on the other hand to the displaceable seat surface part 3b. Thus, during the verticalization, the slidable seat surface part 3b by the webbing 21 due to the movement of the seat by the mechanics used in front Towards the first seat portion 3a, whereby the pelvic rotation is initiated. The webbing 21 can be easily adjusted in length and thus allows a customized to the needs of the patient movement of the sliding seat part 3b. By a deflection of the webbing 21 according to the pulley principle, the time of displacement of the seat surface part 3b can be changed in addition. As far as an erosion dosage for the patient is not desired, the detachment can be disabled by unhooking the strap 21 to use the seat / stander 1 only in its original functionality for another patient can. This is helpful, for example, when used in the physiotherapeutic treatment, if a patient is not yet able to achieve end-grade stretching and if the deletion should be used, for example, during a 50% erection.

In order to achieve a return of the seat part 3b in its initial position, the gas spring 20 is provided. This ensures in particular that the patient of the seat / stance trainer 1 comes to sit in the original position again after his standing workout. Thus, an exact, by doctor and therapist individually required positioning as often repeatable.

A displacement of the seat part 3b may alternatively be carried out by an electric motor or hydraulically. So that the seat surface parts 3a, 3b are sufficiently held, the construction part 6b is provided on which the seat surface parts 3a, 3b are supported, wherein preferably the central seat surface part 3a is mounted on a slide rail 19 which is directly connected to the construction part 6b or indirectly via further frame elements 25 is connected. In this case, there is the possibility that a slide rail 19 with integrated spindle drive is used as the electromotive seat adjustment, the spindle motor being arranged in the slide rail 19 below the seat surface 3. The seat surface 3 according to the invention is suitable for retrofitting in existing seat / floor trainer 1 or wheelchairs or can be provided directly at the initial installation.

FIG. 2 shows that off FIG. 1 known seat / stander 1 in a vertical position, with a displacement of the seat 3 in a vertical position. The base frame 2 stands here on its rollers 4, 5 fixed on a substrate, wherein a structural part 6a is provided for fixing the knee braces 7, while a second structural part 6b is used to support the seat surface 3. In the rear region of the seat 3, a pivot axis 27 is formed, on which the backrest 14 is pivotally mounted. Thus, the backrest 14 can remain in a preset position of the inclination angle when erecting the seat surface 3, while the seat surface 3 is raised in the rear area. To the backrest 14 is laterally articulated about a pivot axis 18 laterally an armrest 10, which can also be manually adjusted in depth in addition. An armrest 10 is additionally provided with a therapy table 11, which can be pivoted laterally out of the region of the patient via a pivoting arm 13. Thus, the patient can sit in the sitting / standing coach 1 with no assistance or disability with the assistance of a therapist.

FIG. 3 shows in an enlarged partial view of the seat 3, consisting of the seat surface part 3a and 3b. The direction of movement of the seat surface part 3b is additionally indicated by arrows 30, namely the central seat surface part 3b moves between the lateral seat surface parts 3c and 3d of the seat surface part 3a. In a verticalization, first the seat surface part 3a, which is fixed on the construction part 6b via a rotation axis 25, is raised in the rear area and at a later time an additional displacement of the seat surface part 3b takes place in the frontward direction, ie away from the backrest 14. Below the seat part 3a is a Slide rail 19 can be seen, which allows the movement of the second seat surface part 3b relative to the first seat surface part 3a. The raising of the seat parts 3a, 3b is effected by a mechanism which both Sitzflächeentei le 3a, 3b pivoted relative to the axis of rotation 25, wherein optionally delayed with the aid of a webbing 21, the displacement of the second seat surface part 3b is caused to the front. The webbing 21 is guided in this embodiment via a belt deflector 31, 32 to a Verstellschlitten 33, which can be determined latched along an adjustment rail 34 with degrees. Due to the change in length of the webbing 21, the end of the displacement of the seat 3b is set so that an individual adaptation to the patient can take place. In addition, a maximum displacement of the seat 3b is limited by a limit switch 35.

Due to the change in length of the webbing 21 with the aid of the adjusting slide 33, the delamination can be adjusted before reaching the Aufrichtwinkels the seat according to the specified angle setting of 90 ° downwards. The limit switch 35 forcibly stops the erecting operation when the seat surface 3b has been pulled all the way forward by the webbing 21, that is, the dosing operation is completed at the pre-set erecting angle. This allows slow expansion of contractors or flexor pains, which can be dictated either by the user himself or by a third person. At the same time, angle-synchronized deletion, for example, children and persons with mental disabilities, protects against overstretching during standing exercise. A return of the seat 3b takes place here by a gas pressure spring 20, which can be seen between the seat parts 3a, 3b. Alternatively, it is possible to move the second seat surface part 3b toward the first seat surface part 3a through a spindle motor slide rail to effect the desired pelvic rotation in verticalizing a patient.

The principle of pelvic rotation is over FIG. 4 visible and indeed shows FIG. 4 a pictogram in which the movement of the seat 3 is again clarified. The pelvis 32 of a patient rests on the seat surface 3 and is normally blocked during pivoting of the seat 3, that is a rotation of the pelvis 32 is prevented, while in the inventive solution by a pivoting and longitudinal movement of the rear seat bottom part 3b in addition a rotational movement on the Pelvis 32 is exercised, with the clock hand when viewing the patient from the left side. This rotation is brought about by a movement of the rear seat part 3b after kandal and thereby prevents hyperiordosis.

The seat surface 3 according to the invention can be used both in seat / upright trainers 1 or other therapeutic rehabilitation facilities and in particular wheelchairs with verticalization function.

FIG. 5 shows in a perspective view of a wheelchair 40, which has a standard structure in principle. This structure includes two large wheels 41, 42 below a seat 43 and two small wheels 44 to ensure the mobility of the wheelchair. The seat 43 is followed by a backrest 45 which has lateral armrests 46, 47. Above the backrest 45, additional handles 48 are provided so that the wheelchair 40 can optionally be pushed by a third person. Before the small wheels 44 is a footrest 49, which can be adjusted via guide rods 50 in the respective position. The illustrated wheelchair 40 further has a verticalization function, that is, the seat and backrest can be raised, so that the seat can be converted into an approximately vertical position.

The seat 43 used in this case is also divided into two and consists of a front fixed seat portion 43 a, which fixed side Seating surface parts 43c and 43d has. The second displaceable seat surface part 43b is located between the two lateral seat surface parts 43c and 43d, wherein the seat surface part 43a is pivotable in an embodiment according to the invention and the seat surface part 43b can be pivoted together with the seat surface part 43a, but additionally a displacement away from the backrest 45 in FIG Direction on seat portion 43 a can perform. Thus, the pelvis during erection of the wheelchair 40 is rotated supportive in the manner already described, so that the erection of the person sitting in the wheelchair is much easier.

LIST OF REFERENCE NUMBERS

1

Sitting / standing trainer

2

base frame

3

seat

3a

fixed seat

3b

sliding seat

3c

fixed seat

3d

fixed seat

4

caster

5

caster

6a

structural member

6b

structural member

7

knee brace

8th

Pivot means

9

gap

10

armrest

11

therapy table

12

headrest

13

swivel arm

14

backrest

15

footrest

17

linear actuator

18

axis of rotation

19

slide

20

Gas spring

21

webbing

23

Chest and abdominal pad

25

axis of rotation

27

swivel axis

30

arrow

31

belt deflector

32

belt deflector

33

Verstelischlitten

34

adjusting rail

35

limit switch

40

wheelchair

41

Wheel

42

Wheel

43

seat

43a

fixed seat part

43b

sliding seat part

43c

fixed seat part

43d

fixed seat part

44

Wheel

45

backrest

46

armrest

47

armrest

48

handle

49

footrest

50

guide rod

Claims (15)

1. Delordosation device for users of a rehabilitation appliance, in particular for the verticalization of a sit/stand exerciser or a wheel chair, with a seating area (3) and support aids for the user, the seating area (3) being mounted to be swiveling and moving,
   characterized in that
   for verticalization, first a partial swiveling of the seating area (3) is accomplished before a movement of at least a part of the seating area (3) to the front with respect to the original position starting from the backrest (14) is accomplished.
2. Delordosation device according to claim 1,
   characterized in that
   the seating area (3) is embodied in one piece and the complete seating area is mounted to be movable.
3. Delordosation device according to claim 1,
   characterized in that
   the seating area (3) is embodied to be divided at least in two pieces and a first seating area part (3a) is mounted to be swiveling, while a second seating area part (3b) is swiveled together with the first seating area part (3a) and movable with respect to the same.
4. Delordosation device according to one of the preceding claims,
   characterized in that
   the movement of the seating area (3) or a part of the seating area (3) is effected with some delay, or that the swiveling and movement of the seating area (3) or a part of the seating area (3) is effected in a synchronized manner.
5. Delordosation device according to one of the preceding claims,
   characterized in that
   the seating area (3) can be transferred from a horizontal position to a nearly vertical position.
6. Delordosation device according to one of the preceding claims,
   characterized in that
   the seating area (3) is embodied to be divided at least in two pieces, where there is a dividing line transverse to the seated position, or that the first seating area part (3a) is embodied in a U-shape and comprises a front seating region for guiding the thighs and two lateral seating areas (3c, 3d) for stabilizing the seated position, and that the second seating area part (3b) is embodied as central seating region which is mounted to be movable between the two lateral seating areas (3c, 3d) of the first seating area part (3a).
7. Delordosation device according to claim 3 or 6,
   characterized in that
   the second seating area part (3b) performs a relative movement with respect to the first seating area part (3a) of 2 to 12, preferably 4 to 9 cm.
8. Delordosation device according to claim 3 or 6,
   characterized in that
   the seating area (3) is supported via frame elements or construction parts (6b), and the movable seating area part (3b) is mounted on a slide rail (19) which is fixed to a frame element or a construction part (6b).
9. Delordosation device according to claim 3 or 6,
   characterized in that
   the movable seating area part (3b) can be moved manually, electromotively, for example via a spindle drive or a hydraulic drive.
10. Delordosation device according to claim 3 or 6,
    characterized in that
    the movable seating area part (3b) is pushed to a position remote with respect to the non-movable seating area part (3a) by a gas pressure spring (20) which is supported at the frame element or the construction part (6b).
11. Delordosation device according to claim 10,
    characterized in that
    by a belt strap (21) which can be fixed at the frame element or the construction part (6b) on the one hand and at the movable seating area part (3b) on the other hand, the movement of the seating area part (3b) against the force of the gas pressure spring (20) is limited, whereby in the verticalization of the seating area (3), the movable seating area part (3b) is pulled towards the non-movable seating area part (3a).
12. Delordosation device according to one claim 10,
    characterized in that
    the movable seating area part (3b) comprises guide rollers which are movable along a curved path during a verticalization of the seating area (3) against the force of the gas pressure spring (20) towards the non-movable seating area part (3a).
13. Delordosation device according to claim 3 or 6,
    characterized in that
    the movement of the movable seating area part (3b) can be adjusted via a deflection or shortening of a belt strap (21).
14. Delordosation device according to claim 3 or 6,
    characterized in that
    delordosation can be deactivated by the movable seating area part (3b).
15. Delordosation device according to one of the preceding claims,
    characterized in that
    the seating area (3) can be used in stationary sit/stand exercisers, mobile sit/stand exercisers, manual wheel chairs with stand function, electric wheel chairs with stand function, seat systems, stand systems and positioning systems for disabled persons.

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