WO1996039110A1

WO1996039110A1 - Orthotic seating system

Info

Publication number: WO1996039110A1
Application number: PCT/DE1996/001029
Authority: WO
Inventors: Wolfgang Schneider
Original assignee: Otto Bock Orthopädische Industrie Besitz- und Verwaltungs-Kommanditgesellschaft
Priority date: 1995-06-06
Filing date: 1996-06-05
Publication date: 1996-12-12
Also published as: DE19520585A1; DE19520585C2

Abstract

The invention pertains to a modulator orthotic seating system. To improve the adjustability of this system the invention proposes the following features: a) a central support column (1) to which all components can be fastened; b) the central column (1) consists of a seat frame (3) which is detachably connected at its one end to a back frame (4) and at its other end to a lower leg frame (5); c) fastened to the central column (1) is a central seating shell (2), a strip-like section extending approximately - relative to a patient - from the neck attachment to the hollow of the knee; d) fastened to the central column (1) on both sides of the central seating shell (2), in a mirror-image arrangement, are individual thoracic, pelvic and femoral brace pads (31, 32, 33, 34); each of these brace pads (31, 32, 33, 34) can be moved and set independently of the other brace pads both transversely to the central column (1) and in the longitudinal direction of the frames.

Description

Seat orthotic system

The invention relates to a modular seat orthotic system.

Such systems can be mounted on wheelchairs using a mounting adapter. In the known systems, a one-piece seat shell is used, which ensures only a limited fit. Body size differences can only be compensated for by using thick or thin pads. Cavities in relation to the patient's body must be filled with soft foam if necessary. The dimensions of the outer shell are usually specified. If the GRP outer shell is changed, it loses stability. The reworking of the seat shell to improve the accuracy of fit is therefore not only complex and therefore expensive, but can only be carried out separately from the patient, who therefore sometimes has to do without this shell for several weeks.

The object of the invention is to improve the adaptability of the modular seat orthotic system.

This object is achieved according to the invention by the following features:

a) a load-bearing center column on which all components can be fixed;

b) the center column is composed of a seat frame which is detachably connected at one end to a back frame and at the other end to its lower leg frame;

c) on the central column, a strip-shaped seat shell middle part is fastened, which - based on a patient - extends approximately from the base of the neck to the area of the hollow of the knee; d) on both sides of the middle part of the seat shell and mirrored to this, individual thorax, pelvic and thigh pads are attached to the central column;

e) each of these pads can be moved and fixed independently of the other pads both transversely to the center column and in the longitudinal direction of the frame.

In terms of design, it is expedient if the seat frame and the back frame each have a flat one

Box profile is formed, the cavity of which is divided by two longitudinal webs into three adjacent hollow chambers running in the longitudinal direction of the profile. The lower leg frame can also be formed by a corresponding box profile. In the same way, it is advantageous if the connection between the seat and lower leg frame consists of a knee angle piece which is inserted with plug pins in hollow chambers of the associated profile ends.

A first possibility of adaptation can be achieved according to the invention by interchangeable knee elbows with different knee angles or a manually fixable and releasable knee hinge joint.

A further adaptation is made possible according to the invention by interchangeable hip angle pieces with different hip angles or a hip hinge joint which can be locked and released manually.

It can also be advantageous if the lower leg frame is longitudinally divided into two adjacent profiles which are adjustable relative to one another at the knee angle. Due to the different knee angle settings, individual adjustment to, for example, only one stiffened knee is possible. To compensate for different leg lengths, two separate foot plates can be attached to the two profiles mentioned at different heights. In order to enable simple adjustment of the individual pads in the longitudinal direction of the profile, it is expedient if the side walls of the box profiles forming the central column have longitudinal slots running in the longitudinal direction of the profile for fastening the pads.

In order to be able to also adjust the individual pads crosswise to the central column, it is advantageous if each pad is attached to a bracket which can be fixed with its free end to a holding piece which is longitudinally displaceable and which is located on the associated side wall of the Supports the central column. In this case, simple handling is ensured if each holding piece is screwed to a pressure piece which can be displaced in the associated hollow profile chamber by means of a knurled screw inserted through the associated longitudinal profile slot.

The seat orthotic system according to the invention can be used in all patients in whom adequate seat stability can no longer be guaranteed under its own power. The modular system ensures the best possible variation in the selection and in the composition of the components with patient-friendly care. By adjusting individual pads, the new system can be individually adapted to the degree of disability of the patient. Changes or corrections can be carried out directly and directly on the patient, and in a short time.

The pads can be used with different types of padding, e.g. a composite foam pad, replaceable.

An optimal body contact can be achieved by varying the padding. The application of interchangeable covers is possible without any problems.

If the patient situation changes, individual components can be exchanged without any problems. The central column can remain unchanged. Also the subsequent assembly of additional parts is possible without any problems. The assembly of the seat orthosis system on different substructures can also be carried out without any problems.

Further features of the invention are the subject of the subclaims and are explained in more detail in connection with further advantages of the invention using exemplary embodiments.

Some exemplary embodiments of the invention are shown in the drawing. Show it:

Figure 1 is a diagrammatic representation of a modular

Seat orthosis system;

FIG. 2 shows a central column of the seat orthosis system according to FIG. 1 equipped with components;

3 shows a diagrammatic representation of the seat shell according to FIG. 1;

Figure 4 is a perspective view of a box section forming the central column;

Figure 5 in a diagram with a

Retaining piece connecting bracket for a pad;

Figure 6 shows the view of Figure 5 in bottom view;

FIG. 7 shows a hip hinge joint;

Figure 8 shows a headrest holder;

Figure 9 on an enlarged scale compared to Figure 8

Headrest joint of the headrest holder according to FIG. 8; FIG. 10 shows a height-adjustable abduction wedge;

11 shows a swiveling abduction wedge in a

Representation according to Figure 10;

Figure 12 is a footrest bracket and

Figure 13 is a foot box.

The modular seat orthosis system shown primarily in FIGS. 1 and 2 has a load-bearing center column 1, on which a strip-shaped seat shell middle part 2 is fastened, which - based on a patient (not shown) - extends approximately from Starting from the neck extends into the area of the hollow of the knee (see in particular FIG. 3). All other components of the seat orthosis system can also be fixed on the center column 1. The center column 1 is composed of a seat frame 3, which is detachably connected to a back frame 4 by its right end in FIG. 2 and to a lower leg frame 5 by its left end in FIG.

Seat frame 3, back frame 4 and lower leg frame 5 are each formed by a flat box section (see FIG. 4), the cavity of which is divided by two longitudinal webs 6 into three adjacent hollow chambers 7, 8, 9 running in the longitudinal direction of the profile. The connection between the seat frame 3 and the back frame 4 consists of an exchangeable hip angle piece 10, of which two exemplary embodiments having a different hip angle of, for example, 90 ° and 95 ° are shown separately in FIG. Instead of a hip elbow 10, the back frame 4 can also be connected to the seat frame 3 via a hip hinge joint 11 that can be locked and released manually, which is shown in FIG. 7 in the form of a lamella toggle joint. This joint 11, like the hip elbow 10, points to the two Connection ends each have three plug pins 12 and 13, the outer contour of which corresponds to the hollow profile chambers 7, 8, 9 into which the plug pins 12 and 13 are inserted.

The lower leg frame 5 is connected to the seat frame 3 via a knee angle piece 14, also shown separately in FIG. 2, which has a passage slot 15 lying in the longitudinal center plane and two plug pins 16 in the two outer hollow chambers 7, 9 of the seat frame 3 and at its other end with three plug pins 16 is inserted into the hollow chambers 7, 8, 9 of the lower leg frame 5. The knee angle piece 14 is also interchangeable with angle pieces with a different knee angle or a knee hinge joint (not shown in more detail).

In the upper end of the back frame 4, a rail 17 of a headrest holder 18 is optionally arranged in a height-displaceable and lockable manner in one of the three profile hollow chambers 7, 8, 9. The headrest holder 18 is shown separately in FIG. 8. Its rail 17 carries at its upper end an interchangeable headrest joint 19 which is inserted with a plug pin 20 into the upper end of the rail 17 designed as a box profile. The headrest joint 19 shown separately in FIG. 9 is designed as a lamella joint and can be adjusted by loosening or tightening an Allen screw 21. An intermediate piece 22 plugged onto a further plug pin 20 of the joint 19 is equipped at its upper end with a second headrest joint 19 which carries a holding plate 23 on which the actual headrest 24 can be fixed.

A foot board bracket 25 (see FIG. 12) can be inserted into the lower profile end of the lower leg frame 5, on which a foot board not shown in the drawing or a foot box 26 shown in FIG. 13 can be exchangeably fixed. Figures 1 and 2 show that the footboard bracket 25 in the two outer cavities 7, 9 of the Lower leg frame 5 is inserted.

A calf plate 27 which can be adjusted in the longitudinal direction of the profile can be fixed on the lower leg frame 5.

An abduction wedge 28 can also be fixed on the center column 1, for which FIGS. 10 and 11 show two exemplary embodiments, both of which are also shown in FIG. In both embodiments, a holder 29 is provided which, at its one end which projects upwards, carries the abduction wedge 28, which is adjustable in height relative to this holder end, projects through the passage slot 15 of the elbow angle piece 14 and with its other end into the central hollow chamber of the seat frame 3 is inserted. In the embodiment shown in FIGS. 1 and 11, the abduction wedge 28 can be pivoted downward relative to its holder 29 about a horizontal axis 30 in the passage slot 15 into an inactive position.

On both sides of the seat shell middle part 2 and in mirror image thereto, individual pads are attached to the center column 1, namely two thorax pads 31, four pelvic pads 32, 33 and two thigh pads 34. Each of these pads 31, 32, 33, 34 is both transverse to the center column 1 and can also be moved and fixed in the longitudinal direction of the frame independently of the other pads. For this purpose, each pad 31, 32, 33, 34 is fastened to one end of a bracket 35, the other end of which can be fixed in a longitudinally displaceable manner on a holding piece 36 which is supported on the associated side wall of the center column 1. In order to be able to move the bracket 35 relative to its holding piece 36 in the longitudinal direction of the bracket, the holding piece 36 has a longitudinal slot 37 in which an Allen screw 38 screwed to the bracket 35 is guided. The bracket end connected to the Allen screw 38 is inserted into a guide 39 of the holding piece 36, so that the bracket end is held on the one hand in a form-fitting manner and on the other hand is guided in an exactly longitudinally displaceable manner. Each holding piece 36 is detachably fastened to the center column 1 by means of a knurled screw indicated only by the dash-dotted line 40 in the drawings. For this purpose, the side walls of the flat box profile have longitudinal slots 41 (see, for example, FIG. 4), in which the individual knurled screws are guided, which are screwed to a pressure piece 42 which can be displaced in the associated hollow profile chamber 7 or 9 are. The pressure piece 42 assigned to each knurled screw 40, which is only drawn with a broken line in FIG. 4, is preferably made of aluminum and is preferably made so long that it can be supported in at least one separating web between two longitudinal slots 41 in each longitudinally displaced position. This ensures that even high forces can be safely absorbed and transferred to the center column 1.

Claims

Claims:

1. Modular seat orthosis system, characterized by the following features:

a) a supporting center column (1) on which all components can be fixed;

b) the center column (1) is composed of a seat frame (3), which has one end with one

Back frame (4) and at its other end is detachably connected to a lower leg frame (5);

c) on the center pillar (1) is attached a strip-shaped seat shell middle part (2) which, based on a patient, extends approximately from the neck approach to the area of the hollow of the knee;

d) on both sides of the seat shell middle part (2) and mirror image of this, individual thorax, pelvic and thigh pads (31, 32, 33, 34) are attached to the center column (1);

e) each of these pads (31, 32, 33, 34) can be displaced and fixed both transversely to the central column (1) and in the longitudinal direction of the frame independently of the other pads.

2. Seat orthotic system according to claim 1, characterized gekennzeich¬ net that the seat frame (3) and the back frame (4) is formed by a flat box profile, the cavity of which by two longitudinal webs (6) in three adjacent, continuous in the profile longitudinal direction Hollow chambers (7, 8, 9) is divided.

3. seat orthosis system according to claim 2, characterized marked net that the lower leg frame (5) is formed by a corresponding box profile (6, 7, 8, 9).

4. Seat orthosis system according to claim 3, characterized in that the connection between the seat and Unterschenkel¬ frame (3, 5) consists of a knee elbow (14) with plug (16) in hollow chambers (7, 8, 9) of the assigned profile ends.

5. Seat orthosis system according to claim 4, characterized by interchangeable knee elbows (14) with differing knee angle or a manually ascertainable and releasable knee hinge joint.

6. Seat orthosis system according to one of the preceding Ansprü¬ che, characterized in that the connection between the seat and back frame (3, 4) consists of a hip elbow (10), each with three plug pins (13) in the hollow chambers (7, 8, 9) of the assigned profile ends is inserted.

7. Seat orthosis system according to claim 6, characterized by exchangeable hip angle pieces (10) with differing hip angles or a manually ascertainable and releasable hip hinge joint (11).

8. Seat orthosis system according to one of the preceding Ansprü¬ che, characterized in that in the upper end of the back frame (4) optionally in one of the three hollow profile chambers (7, 8, 9) a rail (17) of a headrest holder (18) is arranged so as to be displaceable in height and lockable, which carries at its upper end a replaceable headrest joint (19) via a plug connection, which is connected directly or indirectly to the headrest (24).

9. seat orthotic system according to one of claims 4 to 8, characterized in that the seat and lower leg frame (3, 5) connecting the knee angle piece (14) has a through slot (15) lying in the longitudinal center plane, through which a holder equipped with an abduction wedge (28) (29) protrudes, which is inserted with a plug-in foot into the middle hollow profile chamber (8) in the profi lend of the seat frame (3).

10. Seat orthosis system according to claim 9, characterized in that the abduction wedge (28) relative to its holder

(29) about a horizontal axis (30) in the passage slot (15) can be pivoted into an inactive position.

11. Seat orthosis system according to one of the preceding claims, characterized in that in the lower profile end of the lower leg frame (5) a footrest bracket (25) can be pushed in, on which a footrest or boxes (26) can be interchangeably fixed is.

12. Seat orthosis system according to one of the preceding Ansprü¬ surface, characterized in that on the lower leg frame (5) in the longitudinal profile adjustable calf plate (27) can be fixed.

13. Seat orthosis system according to one of claims 4 to 12, characterized in that the lower leg frame (5) is longitudinally divided into two adjacent profiles which are adjustable relative to each other at the knee angle.

14. Seat orthotic system according to one of claims 2 to 13, characterized in that the side walls of the central column (1) forming box sections (6, 7, 8, 9) in the longitudinal profile direction longitudinal slots (41) for Befe¬ the padding (31, 32, 33, 34).

15. Seat orthotic system according to claim 14, characterized gekenn¬ characterized in that each pad (31, 32, 33, 34) on a Bü- Gel (35) is attached, which can be fixed with its free end longitudinally displaceably on a holding piece (36) which is supported on the associated side wall of the center column (1).

16. Seat orthosis system according to claim 14 and 15, characterized in that each holding piece (36) via a knurled screw (40) inserted through the associated profile longitudinal slot (41) with a in the assigned profile hollow chamber (7th , 9) displaceable pressure piece (42) is screwed.