FR2972628A1 - Articulated support for tilting bed for bedridden patient in e.g. hospital, has actuators for caregiver to tilt bed by triggering movement of one of longitudinal central and side parts that are interconnected by hinges - Google Patents

Abstract

The support has articulated longitudinal central parts (3a, 3b) placed at center of the support, and longitudinal side parts (1c, 3c) placed on sides of the support, where the longitudinal central parts and the longitudinal side parts are interconnected by hinges (6-8) for dividing the support into upper and lower portions longitudinally relative to a bed. The longitudinal side parts are fixed relative to a frame of the bed, where actuators are provided for a caregiver to tilt the bed by triggering movement of one of the central parts and the side parts. An independent claim is also included for a method for producing an articulated support.

Description

The present invention relates to an assembly for tilting bed of bedridden subject.

In the first place, the invention relates to an articulated assembly support for a moving bed. This type of bed is provided for subject bed, with at least one lateralization function.

Patients or bedridden patients are often unable to move on their own. Such a situation in many cases requires the caregiver to lateralize said subject. The situation becomes more problematic when you do not touch the patient. Such a problem forces the bed and the patient to be bedridden. In addition, hospital beds have several functions.

Document EP 062771 discloses a bed base assembly for tiltable bed comprising a base and two sheets each covering respectively a lateral part of the base and being connected by a hinge. Two bags raise each sheet independently. The base and the sheets are divided into panels articulated transversely. The bags allow limited elevation of one side of the bed.

However, these known beds are limited by the sizes of the bags and at only one lateral inclination possible. In addition, these known beds do not solve other problems related to movement, positioning and congestion.

It has been envisaged to use cylinders see for example EP 1 486 191 A1, but this known bed 25 has articulated elements or neighborhoods (the 5e), said longitudinal quarters of the support being respectively placed in the center, longitudinal central districts ( 3a, 3c, 3d, 3e) and placed on the sides, lateral longitudinal sides (1a, 1c, 1d, 1e, 5a, 5c, 5d, 5e), the transverse quarters comprising lateral central districts (1e, 3e, 5e) , quarters of foot (1d, 1e, 3d, 3e, 5d, 5e), head quarters (la, 31a, 5a), said quarters are interconnected by hinge means typically hinges (6) in upper parts, or in lower parts arranged substantially longitudinally with respect to said bed. The bed described by this document requires a very large number of parts and the cylinders can cause tilts up to 90 ° even in a 45 ° inclination, which is too violent for bedridden patients. This known bed is a complicated mechanism that requires adjustments that impose new parts. Thus, the cylinders being eccentric, to achieve the desired accuracy, this document considers the use of airbag. Therefore, the complexity of the linkage is too sophisticated and complex in its implementation. Each wing corresponding to four lateral quarters respectively per side has only one pivot axis. Therefore, not only does this structure require cylinders with a large piston stroke. But also, even folded the bed remains wide and makes difficult the passage through the doors of hospitals with caregivers.

In contrast, the articulated bed support according to the invention, which is simple in its simplicity with only four actuators and suitable and simple hinges, does not require a translation trolley or linkage. The articulating bed support for the subject aims to preserve the various functions of the beds of bedridden subjects and to solve the problem of lateralization, even in the case of work carried out by a single caregiver and without help by lifting the chest and / or feet and reducing the width of the bed to pass the doors while maintaining lateralization. The object of the invention is to overcome these disadvantages by providing an articulated moving bed support in which the longitudinal and lateral central quarter (3c) is fixed relative to the bed frame and its adaptation variants and the articulated bed support comprises servo components (14), all controlled by a single person, a carer (s) triggering the upward tilt of at least one of said lateral neighborhoods with respect to the central district (3c) and other lateral areas of the bed, ie the lateralization of the bed.

According to another feature, the articulated bed support comprises a remote control servo components (14) allowing a single caregiver (e) to trigger the lateralization of the bed avoiding potential contaminant contact with the bedridden .

The bed known from EP 06 2771 discloses a mobile central quarter. As a result, this bed can only make a partial lateralization, the back of the patient is not accessible for care. In order to leave the subject in a lateral position in order to have access to his back, the articulated bed support according to the invention comprises several intermediate longitudinal quarters (2a, 21), 2c, 2d, 2e, 4a, 4b, 4c, 4d. , 4e) between the lateral quarters of the same side, at the head, in the center and / or at the foot of said bed and the central longitudinal quarters, said lateral quarters being interconnected by means of articulation, in upper parts, or in lower parts arranged substantially transversely to said bed allowing a caregiver to lateralize sectorially in the axial direction the sleeping plan allowing the caregiver to lateralize a patient without the assistance of a third person, and especially without effort, or without having to be in touch with the patient with access to the back of the patient, typically the hinge means being hinges arranged substantially longitudinally are in p upper arties to preserve said lateral areas of a descent below the bed plan. In order to obtain flexibility in lateralizing, lifting the head and / or feet while allowing the positioning of the folded legs and the positioning of the elongated legs raised with much more flexibility, the articulated bed support according to the invention in a variant comprises intermediate transverse neighborhoods (1b, 2b, 3b, 4, 5b) between head quarters and central neighborhoods, the head quarters and / or bed foot being connected to the central district by means of articulation typically hinges disposed substantially transversely to said bed allowing a caregiver (e) to raise the head, back, feet and / or legs.50 According to other characteristics of the articulated bed support according to the present invention: - the hinges arranged substantially transversely are in upper parts to preserve the head and footboard of a descent below the bed plan.

- The hinges arranged substantially transversely are in lower parts to allow the footboard to swing down. - The articulated support comprises at least four actuators, operating independently of each other, said actuators being positioned on the central quarter and working in extension. - At least four actuators, operating independently of each other, said actuators being positioned on the central quarter working extension that allow individual movement of each neighborhood. - The articulated support comprises a bed base means comprising at least one profile and slats, said means being clipped on the quarters. The present invention also relates to a method of producing an articulated bed support according to one of the preceding claims comprising the following 25 steps: assembly of tubes in several rectangular frames of dimensions capable of cooperating with each other, fixing means articulated assemblies on at least several of said rectangular frames of dimensions adapted to cooperate with each other, attachment of anchoring supports of rectangular frame actuators of dimensions adapted to cooperate with each other, attachment of bed base means, surface treatment rectangular frames of dimensions capable of cooperating with each other, assembly of all the frames including by said articulated assembly means, attachment of the actuators. According to another characteristic, the method comprises a tube assembly step is a sample assembly of square tubes. The invention also relates to the use of an articulated support which may be in accordance with that described above, in such a way as to be adaptable to all types of usual bed (s) of hospital or clinical, allowing to combine the functions of raising and lowering of the bed area to avoid the caregivers' "and other disadvantages" related to the weight and rigidity of the beds. The invention will be better understood on reading the drawings given by way of non-limiting example in which: - Figure 1 shows a top view of a first embodiment of a hinged support twenty-five bed quarters horizontally and showing the vertical projection of the bedridden subject; FIG. 2 is a plan view of the support of FIG. 1 without the projection of said subject bed with realization of the hinge assembly of the twenty-five quarters; FIG. 3a shows a three-quarter-left view of the first variant embodiment of the articulated bed support according to FIG. 1; Figure 3b shows a view from the front or headboard of the first embodiment of the articulated bed support according to Fig.1; FIG. 3c is a three-quarter view of the first embodiment of the articulated bed support according to FIG. 1; Figure 3d shows a view from below the first embodiment of the articulated bed support according to Fig.1; FIG. 3e represents a view from above of the first variant embodiment of the articulated bed support according to FIG. 1; FIG. 4a is a left-rear quarter view of the first embodiment of the articulated bed support in the lateralized position according to FIG. 1; FIG. 4b is a view of the rear or footboard of the first embodiment of the articulated bed support in the laterally positioned position according to FIG. 1; FIG. 4c shows a three-quarter rear view of the first embodiment of the articulated bed support in the lateralized position according to FIG. 1; FIG. 4d is a view from below of the first variant embodiment of the articulated bed support in the lateralized position according to FIG. 1; FIG. 4e represents a right view of the first embodiment of the articulated bed support in the laterally positioned position according to FIG. 1; Figure 4f shows from below the first embodiment of the articulated support bed 50 lateralized position according to Fig.1; 45 - Figure 4g is a three-quarter front left view of the first embodiment of the articulated bed support laterally positioned according to Fig.1; FIG. 4h shows front view or headboard view of the first alternative embodiment of the articulated bed support in the lateralized position according to FIG. 1; FIG. 4i shows a three-quarter front-right view of the first embodiment of the articulated bed support according to FIG. 1; - Figure 5a shows a three-quarter left rear view of the first embodiment of the hinged bed support cradle position according to Fig.1; Figure 5b shows a rear view or footboard the first embodiment of the hinged bed support cradle position according to Fig.1; FIG. 5c shows a three-quarter view of the rear right side of the first embodiment of the hinged bed support in the cradle position according to FIG. 1; Figure 5d shows a bottom view of the first embodiment of the hinged bed support cradle position according to Fig.1; Figure 5e shows a right view of the first embodiment of the hinged bed support cradle position according to Fig.1; Figure 5f shows from below the first embodiment of the hinged bed support cradle position according to Fig.1; FIG. 5g shows a three-quarter front-left view of the first embodiment of the articulated bed support in the lateralized position according to FIG. 1; FIG. 5h shows front view or headboard view of the first embodiment of the hinged bed support in the cradle position according to FIG. 1; FIG. 5i shows a three-quarter front view of the first embodiment of the articulated bed support according to FIG. 1; - Figure 6a shows three quarter left rear view of the first embodiment of the articulated bed support according to a second embodiment; FIG. 6b shows a view from the rear or footboard of the first variant embodiment of the articulated bed support according to FIG. 6a; Figure 6c shows a view of three quarter right rear the first embodiment of the articulated bed support according to Fig.6a; Figure 6d shows a view from below the first embodiment of the articulated bed support according to Fig.6a; Figure 6e shows a right view of the first embodiment of the articulated bed support according to Fig.6a; FIG. 6f represents from below the first variant embodiment of the articulated bed support according to FIG. 6a; FIG. 6g shows a three-quarter front left view of the first embodiment of the articulated bed support according to FIG. 1; Figure 6h shows front view or headboard the first embodiment of the articulated bed support according to Fig.6a; FIG. 6i shows a three-quarter front-to-right view of the first embodiment of the articulated bed support according to FIG. 6a; FIG. 7a shows a three-quarter front left view of the first embodiment of the hinged bed support in lateralized position on both sides, or in a cradle according to FIG. 1 equipped with jacks; Figure 7b shows, seen from three quarters right rear, the support of Figure 7 with a base; FIG. 8a shows a view from above of the first variant embodiment of the articulated bed support according to FIG. 1 representing the location of the cylinders;

Figure 8b shows a view from below of the first embodiment of the articulated bed support according to FIG. 1 representing the location of the cylinders;

FIG. 8c represents a variant transverse view of the articulated bed support according to FIG. 1 representing the location of the cylinders;

Figure 9 is a top plan view of the first alternative embodiment of the articulated bed support according to FIG. 1 representing the location of the upper and lower hinges;

Figure 10 is a sectional diagram B-B according to Figure 2 of the first alternative embodiment of the articulated support of the bed; Figures 11a, 11b, 11c and 11d are a sectional drawing AA of the bed support of Figure 10, legs raised, feet lowered; The 12a represents bottom view, the plane of installation and stabilization;

Figure 12b shows in perspective a set of several elements;

FIG. 12c represents a cavalier perspective view of the frame. FIG. 13 shows in elevation a partial bed base means;

Fig. 14 is a flow chart that explains the eight steps of making a bed support assembly according to the invention.

The assembly forming a articulated bed support lateralisable consists in a first embodiment shown in FIG. 1 by neighborhoods or articulated elements the 5th. These neighborhoods are arranged around a fixed central element or neighborhood 3c. In this first variant the quarters 1a to 5e are connected together directly or indirectly via other quarters 1a to 5e by hinges 6 forming hinge elements, in upper parts so as to allow to tilt towards the high side quarters. The hinges 6 comprise "two plates 7,8 comprising, by plate on its lower surface, rigid fastening means 9, typically screw openings 9 ', on a quarter 1a to 5e. has a hollow cylinder 10 containing a solid cylinder 11 placed in the upper part of the second plate 8. The axis of the cylinders 10, 11 is merged and constitutes the axis 12 tilting articulation of the neighborhoods la to 5th The neighborhoods are made to base of square metal tubes 10 assembled by welding to form twenty-five rectangular quarters 1a to 5e, The invention, represented here, consists of the possibility of "lateralizing sectorially" in the axial direction the "lying plane" allowing the caregivers to lateralize a subject without the help of a third person, and, especially without effort, or without having to be in touch with the subject.

This lateralization function is not compatible with a lifting position of the head and / or feet. However, it allows positioning in the form of a "cradle" as in FIGS. 5b, 5i, 7a, 71) and 10d, for agitated subjects and avoid the risk of falls.

According to a second embodiment of higher parts for some and lower parts for others according to the functions of each as shown in Figs. 6a to Fig 6i. The identical elements have retained the same reference signs in the different figures.

Figs. 5a to 5f and FIGS. 7 represent the different possible positions.

The characteristic of this invention is to be able to operate all these functions using a minimum of four actuators 14 shown in FIG. 7a and 7b, operating independently of each other. Any other mechanical solution would be conceivable such as airbags or screws, but would however require a more complex servo, so expensive and longer to achieve. Moreover other variants (electrical, pneumatic, hydraulic and others) are possible but not described here.

This set is adaptable to all types of bed (s) customary, while preserving existing "up and down" functions to combine said functions to the great advantage of the subject and the caregiver.

Figure 9 schematically shown in plan view with the first embodiment of the articulated bed support according to FIG. 1 representing the different neighborhoods connected by two hinges and indicating the location of these hinges (6) and hinge plates (7, 8). Identical parts retain the same references.

Fig. 9 has a support in which the hinges 6 placed along the longitudinal axes 12 are in the upper part, the plates 7, 8 are visible and the transverse hinges 6 are at the bottom, the cylinders 10, 11 are apparent. Thus, the lateralization is done by descent while it is possible to raise head and foot of bed.

Fig. 9 shows an alternative embodiment where some axes have two hinges per quarter C1, C2, C3, C4, C5 and where all the hinges are in the up position. In fig. 9, the hinges 6 have a clearance in the case of hinges 6 with lower clearance between the frame which determines the pivot angle;

upper hinges without play between frame. Pivoting angle conditioned by the stroke of the actuator; lower hinges + game which conditions the pivot angle;

as well as between neighborhoods (B and C) and (C and D). Upper hinges 35 could be used. The maximum swivel angle would be conditioned by the stroke of the actuator.

Fig. 10 represents the bed according to Figure 1 with its longitudinal joint. The bed support comprises the different quarters 1c, 2c, 3c, 4c, 5c and the location of the lower hinges (6).

The hinge clearance is a function of the angles of rotation and rotation.

The drawing in full line represents a side of lateralization with the quarters 1c and 2c 45 in motion and the other 4c, 5c in the rest position (horizontal), the quarter 3c being fixed. The drawing also shows in dotted lines the bed support in the position of lateralization, that is to say in the cradle with the solid neighborhoods 1c, 2c in motion and the dotted neighborhoods 4c, 5c also in motion. The fixed quarter 3c. Also in a position of lateralization on one side with the solid neighborhoods 1c, 2c in motion 4c in the rest position and the quarter 5c in dotted lines, assuring security for the subject. The diagram also shows the operation of the actuators 14. Actuators attached to the central quarter 3c. The actuators 14 are four mounted cylinders, pivoting on the base of the bed support. These cylinders 14 comprise a sleeve 15 in which a rod 16 slides. This rod 16 is pivotally connected to a fastening support 18 placed on the end quarters of the bed support. At the center of the device, on the base, is placed a central fixation frame of the actuators. Thus, with only four cylinders, it is possible to select many pivoting quarters. FIG. 10 shows in full lines the support of the bed with a raised side and the actuators 14 with rods (16) being out and on the other horizontal side, the rod 16 being retracted into the hollow cylinder 15. Between the abcd quarters there is a which is a function of the angle around which the different sectors must pivot. By a locking system between a and b, not described here, the intermediate and end-side position may be integral.

A dashed representation is distinguished by an actuator 14 retracted at its maximum stroke. This leads to folding down the bed side. Thus, the pivot angle is related to the stroke of the actuator and the caregiver chooses the stroke length with its remote control.

The second dashed representation shows the actuators 14 removed and the position of secure lateralization for the patient with the rim formed by the quarter 5c. FIG. 11 a represents, according to the section AA and according to FIG. 1, the first variant embodiment of the hinged support of the bed representing the different quarters 3a, 3b, 3c, 3d and 3e and lower and upper hinges. Quarter 3c fixed.

Figure 11a shows the quarter 3a in motion, head up. Neighborhood 3b at 40 rest (horizontal), district 3c fixed and neighborhoods 3d, 3rd moving, legs raised and folded. Figure 11b shows the quarters 3a, 3b, 3d and 3e in motion, trunk and head raised and legs lifted. By a locking system, the quarters 3a, 3b can be integral. Figure 11c shows the quarters 3a, 3b, 3d and 3e in motion, trunk and head raised (unlocked) and legs lifted.

Figure 11d shows the neighborhoods 3a raised head and quarters 3d, 3rd moving, legs raised and folded. Figure 12a shows a view from below, the laying and stabilizing plane of the support adaptable and adapted to the medical support.

This installation and stabilization plan provides excellent support strength and good lateralization. It will avoid in the long run a deformation of the components of the system and will also, after the lateralization, excellent stability of the neighborhoods in the rest position (horizontal). Avoid the concavity.

FIG. 12b represents in a cavalier perspective a set of several elements, the central quarter C3 on which the frame 19 is fixed with the location of the fasteners of the jacks (17), the laying plane 20 and the four fixing feet 21.

FIG. 12c represents a cavalier perspective view of the frame fixed on the central quarter 3c, a frame also on which the jacks (in the lower part) are fixed. The installation plan, the frame, the fixing feet can be made with different materials, T-shaped, L-shaped or flat iron. Between the columns 1 2 3 4 5, there is a game depending on the angle around which the different sectors must rotate. The relationship between the game and the angle of rotation is conditioned by the play between two sectors.

The invention also comprises a bed base means 22 shown in elevation (FIG 13). This means 22 comprises a rectangular frame 23 made of elements known as welded square tubes. On this frame of the cross members 24 are assembled by known means such as screws 25.

The embodiment variant shown in FIG. 14 comprises the following successive steps: A- Assembly: welding square tubes in rectangular frames: 1a 2a 3a 4a 5a etc ... the 2nd 3rd 4th 5th. 25 frames in total. B- Fixing by welding or screwing the hinges on the various frames. C- Fastening of the tie-down support of the actuators on the central quarter 3c and on the moving quarters 1c / 5c and 3a and 3e 40 D- Fixing means insert bed-frame E- Surface treatment. Painting or others. 45 F- Assembly of all these frames by means of the hinges 6. G- Fastening of the actuators 14. H- Placement of the assembly on the support of the bed. 50 1- Branching of shareholders and orders and switching on. The angle limiting procedures will be determined according to the constraints specific to each site such as hospitals, homes, clinics that impose specific constraints. Use of an articulated support according to the invention aims to treat patients bedridden in good conditions: the lateralization will put the patient in the position of lateralization with the articulated support according to the invention.

Possibly put the patient in the lateral position of safety folded legs, etc ... then put the quarters in horizontal position and to treat correctly the patient. Reverse operation by starting in a supine position.

These difficult operations will be done with gentleness: head, neck, trunk will be turned with care, without jerks (with precautions of use). Valid on both sides.

In addition, the articulated bed support mobile, according to the invention, allows considerable help for the caregiver: After performing the lateralization, medical personnel can intervene with the patient in very good conditions for care (back, etc. ...). Although the invention has been described in connection with particular structures, it is in no way limited and can be made many variations such as variations in numbers of hinges, actuators or quarters. The combinations of the different embodiments shown in the drawings or described above are not outside the scope of the invention.

30 Reference signs

neighborhood lb Neighborhood lc Neighborhood Id Neighborhood Neighborhood 2a Neighborhood 2b Neighborhood 2c Neighborhood 2d Neighborhood 2nd Neighborhood 3a Neighborhood 3b Neighborhood 3c Neighborhood 3d Neighborhood 3rd Neighborhood 4a Neighborhood 4b Neighborhood 4c Neighborhood 4d Neighborhood 4th Neighborhood 5a Neighborhood 5b Neighborhood 5c Neighborhood 5d Neighborhood 5th Quarter 6 Hinges 7 Hinge plates 8 Hinge plates 9 Hinge fixing means 9 'Opening Hollow cylinder or round tube 11 Solid cylinder 12 Axes 13 Amount replaced by mattress stops 14 Actuators Cylinder 16 Rod 17 Location of actuator fasteners on the quarters 18 Bracket and fastening of actuators 19 Framework for central mounting of actuators Installation and stabilization plan 21 Mounting feet 22 Middle bed base 23 Frame 24 Sleeper Screws 26 Foot rod

A assembly of tubes in several rectangular frames B fixing of articulated jointing means C fixing of actuator securing supports D fixing of means for bed base units E surface treatment F assembly of all the frames G fixing of the actuators H Placement of the together on the bed support.

1 Shareholder and control connection and power on. Subject The reference signs inserted after the technical features mentioned in the claims are intended only to facilitate the understanding of the latter and in no way limit its scope.

Claims (11)

1. articulated bed support movable bed for subject (P), with at least one lateralization function, which is constituted by articulated elements or neighborhoods (1a to 5e), said longitudinal quarters of the support being respectively placed in the center, quarters longitudinal centers (3a, 3c, 3d, 3e) and placed on the sides, lateral longitudinal sides (1a, 1c, 1d, 1e, 5a, 5c, 5d, 5e), the transverse quarters comprising lateral central districts (1c, 3c, 5c), foot quarters (1d, 1e, 3d, 3e, 5d, 5e), head quarters (1a, 3a, 5a), said quarters are interconnected by hinge means typically hinges (6) in upper parts, or in lower parts arranged substantially longitudinally with respect to said bed, characterized in that the longitudinal and transverse central quarter (3c) is fixed with respect to the bed frame and that the articulated bed support comprises components enslavement (14), the whole being controlled by a single person, a carer (e) triggering the tilting up of at least one of said lateral areas with respect to the central district (3c) and other neighborhoods side of the bed, the lateralization of the bed. 25 An articulated support according to claim 1 which includes a remote control of the servo components (14) allowing a single caregiver to initiate lateralization of the bed avoiding potential contaminant contacts with the person. bedridden. 3. Support articulated according to one of the preceding claims, which comprises a plurality of intermediate longitudinal quarters (2a, 2b, 2c, 2d, 2e, 4a, 4b, 4c, 4d, 4e) between the side quarters of the same side, at the head in the center and / or at the foot of said bed and the central longitudinal quarters, said lateral quarters being interconnected by means of articulation, in upper parts or in lower parts arranged substantially transversely to said bed allowing a ) Career (e) to lateralize sectorially in the axial direction the sleeping plan 40 allowing the caregiver to lateralize a patient without the assistance of a third person, and, especially without effort, or without having to be in touch contact with the patient having access to the back of the patient, typically the hinge means being hinges arranged substantially longitudinally are in upper parts to preserve said quarter Lateral descent of a descent below the bed plan. 4. Articulated support according to one of the preceding claims, which comprises intermediate transverse neighborhoods (1b, 2b, 3b, 4b, 5b) between the head quarters 50 and the central quarters, the head quarters and / or foot bed being connected to the central quarter by hinge means typically hinges disposed substantially transversely to said bed allowing a caregiver (e) to raise the head, back, feet and / or legs. 5. Articulated support according to the preceding claim, wherein the substantially transversely disposed hinges are in upper parts to preserve the head and the footboard of a descent below the bed plan. The articulated support of claim 4, wherein the hinges disposed substantially transversely are in lower portions to allow the footboard to swing down. 15 7. An articulated support according to one of the preceding claims, which comprises at least four actuators, operating independently of each other, said actuators being positioned on the central quarter and working in extension. 8. Articulated support according to one of the preceding claims, which comprises a bed base means comprising at least one profile and slats, said means being clipped on the quarters. 9. A method of producing an assembly of an articulated bed support according to one of the preceding claims comprising at least the following steps: assembling tubes in several rectangular or square frames of dimensions adapted to cooperate with each other. (A) attachment means articulated on at least several of said rectangular frames of dimensions capable of cooperating with each other (B) fixing actuator securing supports to rectangular frames of dimensions capable of cooperating with each other (C). surface treatment of rectangular frames of dimensions capable of cooperating with each other (E) assembly of all the frames including by said articulated assembly means (6) (F). attaching the actuators (14) (G). 10 30 35 40 45 50 10. A method of producing an articulated bed support according to the preceding claim wherein yl is provided a step of fixing means bed base (D) and the tube assembly step (A) is an assembly by welding of square tubes. 11. Use of an articulated support according to one of the preceding claims, so as to be adaptable to all types of bed (s) usual hospital (s) or clinic, to combine the functions rise and descent This is to prevent the caregiver from performing "kidney tricks" and other inconveniences such as cramps, tendonitis, or failure of lateralization, related to the weight and rigidity of the beds.