WO2001014017A1

WO2001014017A1 - Device in particular for lumbar extension

Info

Publication number: WO2001014017A1
Application number: PCT/CH2000/000444
Authority: WO
Inventors: Adnan Mizher
Original assignee: Adnan Mizher
Priority date: 1999-08-23
Filing date: 2000-08-22
Publication date: 2001-03-01
Also published as: WO2001014017B1; AU6422800A

Abstract

The invention relates to a device in particular for lumbar extension having a carrier frame (22) fitted with a couch (21) whereby said couch can be slid along the carrier frame. Means (11, 19) are provided on the said couch (21) for securing the trunk and the legs of the user (26). The couch (21) can be moved along a horizontally inclined guide. Power transmission means are provided (2, 4, 6) in order to effect lumbar extension by movement of the couch (21). In the course of such a movement, the couch (21) is moved upwards on an inclined surface of the carrier frame (22) against the force of gravity and in so doing a resistive force is generated. The device is simple in design and can be produced in an economically feasible manner being particularly suitable for use in the home.

Description

Device especially for lumbar extension

The invention relates to a device in particular for lumbar extension, with a frame, a bed attached to the frame for the user of the device and with means for fixing the pelvis and legs of the user.

It is known that in chronic low back pain, strengthening the lumbar extensors can significantly reduce pain and improve mental well-being. Active training measures to strengthen the muscular corset of the spine have therefore established themselves as an important therapeutic measure. The importance of such measures results from the fact that 60 to 80% of people suffer from back pain at times and 20 to 30% chronically.

To carry out the training and therapy measures mentioned, a device known as the MedX system is known in which the patient is fixed on his legs and in the pelvic area and carries out an extension with the upper body against a reactive force. In practice, this device has retained itself. Treatment with this device includes, for example, twelve to eighteen sessions that are monitored by a therapist. After completion of therapy, the result should be consolidated through further exercises, which is often not possible for cost reasons. These consolidating exercises could be based on a simpler but nonetheless therapeutic suitable device. Such a device was previously missing.

The invention has for its object to provide a device of the type mentioned that is particularly suitable for home use and is comparatively inexpensive to manufacture. The device should nevertheless permit a health-appropriate training and be usable by the user or patient without further help.

The task is solved in a generic device in that the couch is arranged to be movable on a horizontal inclined guide and in that force transmission means are provided with which, in particular, a lumbar extension is transferred into a movement of the couch, the couch moving upward against gravity becomes. In the device according to the invention, the resistance is exerted by the weight of the bed and the user. When moving the upper body backwards, i.e. a so-called lumbar extension, the user is moved inclined upwards together with the couch. The force that is necessary to move the user and the bed upwards represents the resistance that must be applied during lumbar extension. This force can be changed in a simple manner by adjusting the inclination. This design of the resistance enables a particularly simple, yet functionally reliable construction of the device.

The device can also be used for a training in which the user exercises a flexion movement against a resistance. Here too, the user is moved upwards at an angle. During this flexion movement, the upper body is swung forward against resistance.

Such a device is particularly easy to manufacture if, according to its development of the invention, the power transmission medium have a bracket which is pivotally mounted in the area of the user's pelvis and which is to be applied in an upper area for lumbar extension on the back and for a flexion movement on the user's chest. The pivot axis of the bracket preferably coincides essentially with the pivot axis of the upper body and thus passes through the user's pelvis.

According to a development of the invention, the force transmission means have at least one disk, by means of which a swiveling movement of the user is converted into a sliding movement of the bed by means of a pulling element. This disk is preferably arranged laterally next to the basin. According to a further development, it is provided that the bracket can be connected to the disk in different positions. This is possible, for example, with a pin that is attached to the bracket and can be inserted into a hole in the disk. The user can manually set the appropriate starting position of the bracket by moving the pin. The disk preferably has several such holes.

It is essential for the invention that the device can be used without outside help. The user can fix himself on the lounger on the pelvis and legs with suitable straps. There is preferably a cushion on the bed which is designed so that the legs are slightly bent. This is a particularly suitable position for doing the exercises mentioned.

Exemplary embodiments of the invention are explained in more detail below with reference to the drawing. Show it:

FIG. 1 schematically shows a side view of a device according to the invention, Figure 2 is a view of part of the device

1, FIG. 3 shows a further schematic view of the device according to FIG. 1, FIGS. 4 and 5 schematically the mode of operation of the device according to the invention in the case of a ventilation extension, and FIG. 6 schematically shows a side view of a variant of the device according to the invention, FIG. 7 shows a plan view of the device according to Figure 6,

8 shows a front view of the device according to FIGS. 6 and 7, and FIG. 9 schematically shows a side view of the device according to FIG

Parts are omitted for reasons.

The device 1 shown in FIG. 1 has a frame 22 which, as can be seen, is inclined to a building floor 20 and is placed thereon with feet 12 and a stand 3. The stand 3 has a series of recesses 3a, in which a connecting element 23 engages e after the inclination of the frame 22. The inclination of the device 1 to the horizontal can thus be gradually adjusted in a simple manner.

A bed 21 is arranged on the frame 22 and is supported such that it can be moved on the frame 22 by rollers 28, for example. A cushion 10 is arranged on the top of the bed 21. As FIGS. 1 and 2 show, straps 11 for fixing the feet of a user 26 and straps 19 for fixing the pelvis of the user 26 are attached to the bed. At the lower end of the bed 21 an upwardly projecting rod 13 is arranged onto which the weight body 15 can be attached. As a result, the weight of the bed 21 can be increased. According to FIG. 3, a transversely extending support 30 is arranged at the upper end of the bed 21, to which disks 5 are attached in a rotationally fixed manner to the side next to the bed 21. According to FIGS. 1 and 2, these disks have a series of holes 18. The discs 5 are arranged such that their center point 16 essentially coincides with the axis of the pelvis of the user 26. The pivot axis of the upper body of the user 26 thus passes essentially through these center points 16. Between the disks 5, two support pads 8 are arranged on the bed, which are used on the back for the user 16 for support. An essentially U-shaped bracket 6 is pivotally mounted on the two disks 5. The swivel axis of the bow egg 6 passes through the center points 16 of the disks 5. This bracket 6 has a back cushion 4 in the middle and at the top and a counterweight 7 at the ends. The bracket 6 can be realized for example by means of a curved rod or a tube. The weights 7 ensure an essentially vertical alignment of the unused bow egg 6.

At the upper end of the frame 22, a deflection roller 17 is mounted, around which a tension member 2, for example a rope, is placed. This traction element 2 is attached to the bed 21 at one end 2a and to the disks 5 with two ends 2b. When the bow egg 6 is rotated about the center points 16 in the counterclockwise direction, the disks 5 are rotated in the same sense, and thus the bed 21 on the frame 22 is moved upwards via the pulling element 2. The connection of the bow egg 6 to the disks 5 is ensured according to FIG. 2 by means of pins 14 which are fastened to the bracket 6 and engage in one of the holes 18. The pin 14 can be moved by hand and thus the position of the pin 14 can be changed. The discs 5 are thus fixed and the bracket 6 can be pivoted in one or the other direction of rotation about the center 16. The mode of operation of the device 1 is explained below with reference to FIGS. 4 and 5.

FIG. 4 shows the starting position of a user 26 for a lumbar extension. The legs of the user 26 are fixed with the straps 11 and 19. Due to the shape of the pad 10, the legs are slightly angled, as can be seen. The user 26 is supported on the back by the cushions 8. These pads 8 are attached to the bed 21. The pelvis of the user 26 is located in the area of the disks 5. To strengthen the back muscles, the user 26 performs a movement in which the upper body is pivoted back in the direction of the arrow 31. The bracket 6 resting on the back with the cushion 4 is pivoted with the disks 5 around the center 16. As explained above, the bed 21 is moved together with the user 26 n in the direction of the arrow 32 on the frame 22 via the pulling member 2. This movement requires a force corresponding to the inclination of the frame 22. This force forms the resistance force which the user 26 has to exert during the lumbar extension.

FIG. 5 shows the user 26 after a lumbar extension. The inclination of the upper body is of course different here. The end position shown in FIG. 5 can be held by tensioning the upper body against the bracket 6 or the cushion 4. If the tension subsides and the upper body is moved forward, the bracket 6 follows this movement and at the same time the carriage 21 moves with the user to the right on the inclined plane of the frame 22. The bracket is again pivoted into the starting position shown in FIG. 4. The movement can now be repeated in the same way, the user 26 being moved with the bed 21 into the position shown in FIG. 5 as mentioned. The movements mentioned can of course be repeated as desired. As shown in dashed lines in Figure 5, the bracket 6 'can be arranged so that the pad 4 ¹ rests against the chest of the user 26. If the user 26 now moves his upper body in a clockwise direction, the stirrup 6 ¹ and the disks 5 are also moved in a clockwise direction and at the same time the slide is moved to the left and thus upwards on the inclined plane of the frame 22 in FIG. 5 in FIG , The resistance is thus also brought about by raising the bed 21. After a session has ended, the frame 22 can be removed from the stand 3 and thus supplied in a space-saving manner. When mounting the device 1, the inclination of the frame 22 and thus the force to be exerted can then be selected by the appropriate choice of the recess 3a. An increase in the resistance is also possible by placing a corresponding weight 15 on the rod 13.

According to the invention, a device is thus created which can be manufactured inexpensively and can be operated very easily by the user himself.

The device 50 shown in FIGS. 6 to 9 has a two-armed lever 51 which, according to FIG. 9, can be pivoted about a joint 80 in the direction of the arrow 73. The lever 51 is provided with a weight 70 at its lower end and with a handle 56 at the upper end. In addition, a back cushion 58 is attached to the lever 51 at a suitable height. In the vicinity of the handle 56, a lever 57 is attached, by means of which a locking pin 54 can be actuated via a floor pull 81. An angle scale 55 is attached in the area of this pin 54. With this pin 54, each pivot position of the lever 51 can be locked or released.

A seat cushion 59 is attached to a seat 60 and a footrest 64 is arranged at a distance from it. This footrest 64 is adjustable. Thigh pads 62 are in the vicinity of the seat pad 59 and knee pads 63 are arranged on which the user can support his legs. The thigh pads 62 can be pivoted by means of a locking lever 65.

The seat 60 is mounted on a frame 68 and, together with rollers 75 (FIG. 9), forms a carriage which is mounted such that it can be displaced to a limited extent on two roller guides 76 and 72. These roller guides 66 and 72 each have an inclined plane 67 on which the rollers 75 are supported. These roller guides 66 and 72 can be adjusted by means of a crank 71. The inclination of the inclined planes 67 can thus be adjusted continuously.

The mode of operation of the device 5 is briefly explained below with reference to FIG. The lever 51 is mounted on a web 71 fixed to the frame via the joint 80. Above the joint 80, a bearing plate 77 is fastened to the lever 51 and is connected to a further bearing plate 78 via a joint pin 79. This end shield 78 is firmly connected to the seat 60. Two bearing plates 78 are preferably arranged on the side of the seat 60, each of which is articulated to a bearing plate 77. If the lever 51 on the back cushion 58 is now pivoted in the direction of the arrow 73 around the joint 80, the bearing plate 77 takes the seat 60 with it via the bearing plate 78 and moves it obliquely upwards in the direction of the arrow 74. The seat 60 is thus moved backwards and upwards in FIG. 9. The direction is determined by the inclination of the two roller guides 66 and 72. As explained, these can be adjusted on the crank 71. For example, the inclined plane 67 could be set steeper than shown in FIG. 9. The seat 60 would then be raised correspondingly higher. The person on the seat 60 must thus simultaneously raise their weight and the weight of the seat when pivoting the lever 51. Lifting the seat 60 is only possible when the pin 54 is released. By actuating the lever 57 or the locking pin 54, any position of the seat 60 can be fixed. As FIG. 9 shows, a plate 82 is fastened to the seat 60 and has an arcuate elongated hole 84. In addition, the upwardly projecting plate 78 is also firmly connected to the seat 60 and has latching holes 87, in which the locking pin 54 engages detachably. When the locking pin 54 is released, a lever 88 can be pivoted about an axis of rotation 79. This axis of rotation 79 connects the plate 78 to the plate 77, which is firmly connected to the two-armed lever 51. An elongated hole 83 is machined into the plate 77, in which a bearing roller 86 of the web 61 engages.

If the locking pin 54 is in a locking position and a force is exerted on the back cushion 58 in the direction of the arrow 73, the two levers 51 are pivoted about the pivot point 79 m in the direction of the arrow 73. The plate 77 is pivoted about the pivot point 79 in the counterclockwise direction and thereby raises the plate 82 via the bearing 86 and with it the seat 60. Since the person (not shown here) is on the seat 60, the person must lift their own weight, which generates a corresponding counterforce on the back cushion 58. If the locking pin 54 is released, the two levers 51 can be pivoted without lifting the seat 60.

Claims

claims

1. Device in particular for lumbar extension, with a frame (22), a bed (21) attached to the frame (22) for the user (26) of the device and with means (11, 19) for fixing the pelvis and legs of the user (26), characterized in that the bed (21) is arranged to be movable on a guide inclined to the horizontal and in that force transmission means (2, 5, 6) are provided, with which in particular a lumbar extension n a movement of the bed (21) is transmitted, the bed (21) being moved against gravity, preferably upwards on an inclined plane.

2. Device according to claim 1, characterized in that the force transmission means (2, 4, 6) have a bracket (6) which is pivotally mounted in the area of the user's pelvis and which is in an upper area for a lumbar extension on the back and for a flexion movement of the user (26) is to be applied.

3. Device according to claim 1 or 2, characterized in that the force transmission means (2, 4, 6) at least one disc (5) with which a pivoting movement of the user (26) by means of a pulling element (2) m a sliding movement of the couch ( 21) is converted.

4. Device according to one of claims 1 to 3, characterized in that the force transmission means (2, 4, 6) a cable

(2), which is connected at one end (2a) to the bed (21) and at its other end (2b) m t to a pivotable part (5).

5. Device according to one of claims 1 to 4, characterized in that the means (11, 19) for fixing the user (26) on the bed (21) are attached.

6. Device according to one of claims 3 to 5, characterized in that the bracket (6) and the at least one disc (5) have a common pivot point or axis of rotation (16).

7. Device according to claim 6, characterized in that the bracket (6) in different pivot positions with at least one disc (5) can be connected.

8. Device according to claim 7, characterized in that two spaced disks (5) are provided and that these disks (5) are arranged laterally next to the user's pelvis (26).

9. Device according to claim 8, characterized in that the bracket (6) can be connected to at least one of the disks (5) by means of a manually displaceable pin (14).

10. Device according to one of claims 1 to 9, characterized in that a carrier (13) is arranged in the lower region of the bed (21) and that weight bodies (15) are provided to increase the force to be exerted by the user on the carrier (13) can be applied.