EP2234574B1 - Motorised device for changing the decubitus of a patient confined to bed - Google Patents

Abstract

The invention relates to a motorised device for changing the decubitus of a patient confined to bed, said patient (2) being enveloped between a top sheet (3) and a bottom sheet (4) of a bed. Said device (1) comprises a structure (5) carrying means (8) for turning the patient by rotation caused by driving means, the turning means (8) being in the form of at least two bars (13) for winding the longitudinal edges of the top sheets (3) and the bottom sheets (4), each bar being provided with means (14) for blocking the sheets (3, 4). The invention is characterised in that the blocking means (14) comprise at least one space (15) for inserting at least part of the edges of said sheets (3, 4) and means (17) for holding the edges by clipping them inside said space (15).

Description

The present invention is in the paramedical field and more particularly relates to a motorized device for assisting in patient decubitus change.

In the context of a prolonged bed rest of a patient, it is necessary to change it regularly position, on the one hand to perform the toilet but also to prevent the risk of occurrence of eschar. Other medical recommendations require the regular change of a person's decubitus, especially a patient with respiratory problems. This change of decubitus is done manually by the staff in charge of the patients, carer or nurse.

This tedious task can become complicated during a low mobility of the bedridden person, a large body mass or if the patient must be handled with care, following hospitalization for example.

This is why different motorized devices have been devised to help patient decubitus change. An example of such a device is described in the document FR 2,854,321 . Complex design, this device, supposed to adapt to any type of bed, requires changing the head and the footboard, editing operation again tedious.

In addition, at each change of position, it is necessary to secure a motorized apron ensuring the turning of the patient. This apron is inflatable and rests directly on the mattress of the bed, under the patient. A flap covers the patient at the moment of the change of position, so as to surround. On both sides of the patient, airbags hold the body sideways. These cushions are integral with a motorized barrier, provided for rotation in rotation about the longitudinal axis of the bed.

Not providing complete satisfaction, it has been devised other devices for assisting the patient to change the patient's bed position by holding the patient by strips.

An example of such a system is described in particular in the document US 4,939,801 . Flat bands are attached to a rectangular frame surrounding the patient. Mounted on a cylinder structure, passing from a high position to a low position, and vice versa, this frame allows, in the high position, to rotate the patient thus held by pivoting around said structure.

Complex and long to implement, the bands do not offer a regular maintenance of the patient all over the body, compressing certain delicate areas, especially after hospitalization.

Another device, described in the document US 3,226,734 , uses bands mounted around motorized rollers. Passing under the patient, the rotation of said bands allows its reversal. However, the patient is not maintained during his change of decubitus. The device therefore provides strips to cover it, also mounted on actuated rollers. Such a device therefore falls within the disadvantages of the prior art, remaining complex and time consuming to implement.

It was therefore imagined to use the sheets so as to swaddle the patient to facilitate its reversal, limiting its movement since the sheets are already present in the bed and easy to handle, being able to wrap the whole body.

This technique is used in particular in the document FR 2,687,065 which describes a device for changing the decubitus of a bedridden patient. To do this, it is wrapped between a bottom sheet and a top sheet. The edges of each of the sheets are then wound manually around circular bars. The edges are then held by clips of elastic material clipped around said bars, thus encircling the fabric of said sheets. The bars form a frame around the patient. Said frame is rotatably mounted along a longitudinal axis, oriented along the length of said patient. Once held, pivoting the frame allows the patient to be turned over.

However, such a device is not entirely satisfactory because of the rigidity of the frame and the space between said bars. In addition, keeping the sheets by the clamps remains precarious. Indeed, the tension imposed by the weight of the patient comes to spread the clamps, which can then unclip.

Another similar older device, described in the document US 1 667 982 , clamp between two bars the longitudinal edges of the sheets from above and from below. However, such a device remains complex and time consuming to implement.

The invention, as claimed, is therefore intended to overcome the disadvantages of the state of the art by providing a motorized device for assisting the change of decubitus of a bedridden patient.

An advantage of the invention resides first of all in maintaining the patient through enveloping sheets. The fabric of the sheets allows an adjustable tightening in tension of the patient, without traumatism, with an optimal maintenance.

To do this, the invention provides locking means effective sheets on all or part of the length of their longitudinal edges. This blocking offers a simple and quick solution to implement.

For this purpose, in the device according to the invention, said patient is wrapped between a top sheet and a bottom sheet of a bed and said device comprises a structure supporting means for reversing said patient by rotation under the action of driving means, said turning means being in the form of at least two winding bars of the longitudinal edges of said sheets from above and from below and being provided at each bar of locking means of said sheets.

Such a device is characterized in that said locking means comprise at least one insertion space of at least a portion of the edges of said sheets and means for holding said edges by gripping within said space.

• la figure 1 est une représentation en perspective du dispositif selon l'invention ;
• la figure 2 est une vue de dessus de la figure 1 ;
• la figure 3 est une vue en coupe transversale de la figure 2 selon l'axe B-B' ;
• la figure 4 est une vue en perspective d'un détail de l'invention ; et
• les figures 5A, 5B et 5B sont des vues similaires à la figure 3 des étapes successives d'utilisation du dispositif selon l'invention.

Other characteristics and advantages of the invention will emerge from the following detailed description of non-limiting embodiments of the invention, with reference to the appended figures, in which:

• the figure 1 is a perspective representation of the device according to the invention;
• the figure 2 is a top view of the figure 1 ;
• the figure 3 is a cross-sectional view of the figure 2 along the BB 'axis;
• the figure 4 is a perspective view of a detail of the invention; and
• the FIGS. 5A, 5B and 5B are views similar to the figure 3 successive stages of use of the device according to the invention.

The present invention thus relates to a motorized device 1 for assisting in the change of decubitus of a patient 2 bed.

Said patient 2 is in an extended position, wrapped between a top sheet 3 and a bottom sheet 4 of a bed, more particularly above the bed of the latter (not shown). The device 1 according to the invention is able to change the decubitus of the patient 2 thus bedded, in particular to move without constraint of an elongate position ventral to dorsal, or conversely, or even an intermediate position, in particular on one of his flanks.

To do this, said device 1 comprises a structure 5 shaped to adapt to any type of bed. As visible on the figure 1 such a structure 5 is in the form of a gantry whose lower part is provided with a base 6 extending on the ground, integral with vertical uprights 7 supporting reversal means 8 of said patient 2.

Said base 3 may advantageously include feet, two on the example shown in the drawings, being in the form of longitudinal members 9 slipping under the bed. As visible on the figure 1 each spar 9 receives in the middle the lower part of a post 7. The side members 9 can be secured to one another through a horizontal connecting bar 10 attached to one end of each of said spars 9 The opposite end of the longitudinal members 9 remains free so as to arrange the device 1 to surround the bed, the base 6 sliding below the latter while the turning means 8 come to the top.

As such, said longitudinal members 9 may comprise means rolling, in particular in the form of wheels 11 fixed on their lower part, allowing the displacement of the device 1.

The uprights 7 may be provided telescopic so as to adapt the height of the turning means 8 according to the height of the bed. Thus, each upright 7 comprises a section 70 of wider section but of the same shape as a section 71, the latter sliding inside said section 70. In the embodiment of the figure 1 said sections 70, 71 have a parallelepipedal section, more particularly a square section.

Motorized or manual means (not shown), particularly in the form of a cylinder, allow the upper part of the structure 5 to be raised or lowered, in particular the turning means 8. These motorized means actuate the sliding of the sections 70 and 71. one compared to the other.

What is more, each upright 7 can be made integral at its upper end with a crosspiece 12, maintaining each side of said device 1, providing greater rigidity to the entire structure 5.

The telescopic uprights 7 make it possible on the one hand to adapt the height of the turning means 8 to any type of bed and, on the other hand, to raise them relative to said bed in order to allow their rotation freely during the changeover. patient decubitus 2.

As such, said reversal means 8 are supported by said structure 5. According to the preferred embodiment visible on the figure 1 the means 8 are directly articulated on each upright 7, in rotation along an axis A-A '. This axis AA 'extends longitudinally with respect to the device 1 and relative to the bed, depending on the length of the patient 2 from his head to his feet, or vice versa. The rotation of the reversing means 8 is effected under the action of drive means (not shown) in any direction, hourly or counterclockwise. The pivot points are at the end of said axis A-A '.

An advantage of the invention lies in the fact that the patient 2 is wrapped between a top sheet 3 and a bottom sheet 4. The device 1 uses the sheets 3.4 to swaddle the patient 2 and make it turn, until at a position of 180 °. In this case, the invention makes it possible to move from a dorsal to a ventral bed position, or vice versa, as well as all the intermediate positions.

To do this, said turning means 8 are in the form of at least two bars 13 for winding the longitudinal edges of said sheets 3 above and below 4. These bars 13 extend on either side according to the axis of the bed and the patient 2, flanking the latter.

More particularly visible on the Figure 5A , the edges of said sheets 3,4 are wound together around each bar 13, so as to surround a bar 13 in the counterclockwise direction by 180 °, forming a flap. It will be noted that the winding of the edges of the sheets 3,4 can also be carried out clockwise around each bar 13, or in the clockwise direction around one bar and in the counterclockwise direction on the other closed off.

Advantageously, a bar 13 can be mounted free to rotate along its longitudinal axis during this first phase of winding and positioning the edges of the sheets 3,4 on the turning means 8.

Once in place wrapped around each bar 13, said sheets 3,4 are held on it through means of blocking 14, so as to swab the patient 2.

More particularly, the invention blocks in pairs each of the side edges of the sheets 3 above and below 4. This is why said locking means 14 can advantageously be located on either side of the patient 2 so as to block the sheets 3.4.

Said locking means 14 are advantageously located at each bar 13. More particularly, they are provided integral with each of them, so that the rotation of a bar 13 induces a similar rotation of said locking means 14.

As such, said winding bars 13 can be actuated in rotation in opposite directions with respect to each other, as visible on the Figure 5C . Note that this direction of rotation is identical to the winding direction of the edges of said sheets 3,4 during their positioning on said bars 13. According to another embodiment, said bars 13 can be rotated in the same direction.

Advantageously, as visible on the Figure 5C , maintaining the tension of the sheets 3,4 is ensured through the translation of said bars 13. To do this, said bars 13 are mounted in translation on said reversing means 8 so as to move towards or away from the one of the other, reciprocally during the winding or unwinding of said sheets 3,4.

More particularly, the ends of each bar 13 can be mounted in translation longitudinally with respect to said turning means 8, as shown schematically in FIG. Figure 5C .

According to the preferred embodiment, each bar 13 moves away from or approaches each other so as to stretch the sheets 3.4 once the patient is wrapped in, like a bundle or a hammock.

In addition, said locking means are provided so as to ensure a tension sheets 3.4, preventing them from sliding around the bars 13.

The device 1 according to the invention is characterized in particular by the fact that said locking means 8 comprise at least one insertion space 15 for at least a portion of the edges of said sheets 3,4.

Advantageously, the locking means 14 may extend over all or part of the length of the bars 13. Preferably, according to the embodiment shown in the figures, the locking means 14 are at the ends of each bar 13.

In particular, said locking means 14 are in the form of at least two washers 16 integral with the ends of each bar 13.

In this embodiment, each space 15 is in the form of at least one groove extending in revolution around all or part of each bar 13. In other words, the space 15 constitutes a groove formed in arc of circle centered on the longitudinal axis of each bar 13. This arc is open outwardly at one end of said groove, the opposite end of the groove being blind. This opening allows the passage of said sheets 3,4, as well as the insertion of the holding means 17.

According to the embodiment visible on the FIGS. 5A, 5B and 5C each washer 16 receives two spaces 15 in the form of partial revolution grooves.

Said locking means 14 also comprise means 17 for holding said edges of the sheets 3,4 by pinching inside said space 15. In the form of the washers 16, the pinching takes place only on the corners of the sheets 3,4 .

In addition, said holding means 17 have a shape complementary to said groove so as to slide into the latter. Once thus inserted, the sheets 3.4 can not escape spaces 15 during the rotation of the turning means or bars 13. The latter combined with the locking means 14 are used for the gripping and maintenance of edges of said sheets 3,4, in particular flap previously mentioned.

In addition, said holding means 17 are in the form of at least one removable rod extending parallel to each insertion bar 13 inside said space 15.

According to the preferred embodiment, and as visible on the figure 4 , said holding means 17 are in the form of two or three rods 18 removable from said locking means 14. These rods 18 may be spaced apart and are then interconnected at least at two points through arches 19 of fixation. Each of them can be in the form of an arcuate plate integrally receiving each of the rods 18.

In particular, the section of said rods 18 and their attachment to each arc 19 give the holding means 17 a complementary shape with the space 15 of the locking means 14. This complementarity allows each rod 18 to fit into the inside each gorge.

In place inside their accommodation in the form of a throat each of the ends of a bar 13, said rods 18 also pinch the edges of the sheets 3.4 over the entire length of said bar 13.

In order to facilitate the insertion into each groove and the rolling of the rods 18 along each bar 13, each rod 18 consists of at least one roller 20 mounted to rotate freely around them.

In addition, an orifice may be provided at the axis of rotation A-A 'for the passage of catheters, cables, sheaths, probes or the like, avoiding their entanglement during the inversion of the patient 2.

The present invention, through its motorized device 1 to assist in the change of patient's bed rest, offers an easy alternative to use and adaptable to any type of bed.

It confers an adjustable tension and adapted sheets 3,4, at their edge, without risk that they slip or break during rollover.

Of course, the invention is not limited to the examples illustrated and described above which may have variants and modifications without departing from the scope of the invention as defined in the claims.

Claims (8)

1. Motorized device (1) for assisting in changing a dressing for the bedsore of a patient (2) confined to bed, said patient (2) being wrapped between an upper sheet (3) and a lower sheet (4) of a bed, said device (1) comprising a structure (5) bearing means (8) for turning said patient through rotation under the action of driving means, said turning means (8) being in the form of at least two bars (13) for winding up the longitudinal edges of said upper (3) and lower (4) sheets and being provided, at the level of each bar (13) with means (14) for blocking said sheets (3, 4), said blocking means (14) comprising at least one space (15) for inserting at least part of the edges of said sheets (3, 4) and means (17) for retaining said edges by pinching inside said space (15), wherein said blocking means (14) are in the form of at least two washers (16) integral with the ends of each bar (13).
2. Device (1) according to claim 1, wherein said space (15) is in the form of at least one groove extending in revolution about the whole or part of each bar (13).
3. Device (1) according to claim 2, wherein said retaining means (17) comprise a shape complementary to said groove, so as to be inserted by sliding into the latter.
4. Device (1) according to any of the preceding claims, wherein said retaining means (17) are in the form of at least one removable rod (18) extending parallel to each bar (13) during the insertion into said space (15).
5. Device (1) according to claim 4, wherein said retaining means (17) are in the form of at least two removable rods (18) spaced from and connected to each other at least at two points by means of fixing arcs (19).
6. Device (1) according to any of claims 4 or 5, wherein each rod (18) is formed of at least one roller (20) mounted in free rotation about each rod (18).
7. Device (1) according to any of the preceding claims, wherein said winding-up bars (13) are driven in rotation in opposite directions to each other.
8. Device (1) according to any of the preceding claims, wherein said bars (13) are mounted in translation on said turning means (8), so as to come closer to or to separate from each other reciprocally during the winding-up or the unwinding of said sheets (3, 4).

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