ES2435796T3 - Inflatable mattress - Google Patents

Abstract

It refers to an inflatable mattress (10) connectable with an inflation and deflation system and adapted to lift a patient in the therapy for treatment of bedsores. The mattress comprises: - a first series of inflatable cells (44); - a second series of inflatable cells (48); - at least one feed tube (12) to be connected with the inflation and deflation system; - a first manifold (16), connected with the first series of cells (44) and the at least one feed tube (12). The first series of cells (44) and the second series of cells (48) are arranged next to each other on forming together an only structure having a first side edge and a second side edge. The first manifold (16) is positioned along the first side edge.

Description

INFLATABLE MATTRESS

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The present invention relates, in general, to an inflatable air mattress. More in

In particular, an antidecubitus mattress to support the patient.

As is known, there are different types of antidecubitus mattresses, which have

as at least two series of cells, alternatively inflated and deflated

according to the predefined time cycles, so as to vary the time

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tion of the support areas of the paciEmte lying on the mattress.

The antidecubitus mattresses are inflated by means of one or more compresses

res, whose operation is governed by an appropriate management system and

control, thus regulating the inflation and deflation of each of the series

of cells present in the mattress, as described in the document of the pa

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Tente WO 2010/132931. The compressors can be used alternately last

te normal operation or, at one time, for situations where

higher power or inflation speed is required.

These management and control systems must, in particular, ensure maintenance

of adequate pressure on the mattress.

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To measure the pressure exerted by the user on the mattress, the mats are

according to the known technique, the air coming out of the mattress flows in a cabbage

Choneta with sensor arranged in the bottom of the mattress.

Since the system is configured in this way, the mattress must be fed with

continuously, because the air, although in varying amounts, flows out of the

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mattress towards the mat and from, and this one out. Consequently, in

known systems at least one of the compressors present must be

perennially in operation.

Another problem present in mattresses of known type refers to

to the supply lines of the cells. Indeed, in the mattresses of ti-

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known pologia is present a side manifold connected to the feed tube

tion that transports the air to the compressor outlet. The common side collector

nicante with the mattress cells, made according to the known technique, do not guarantee

Chalk a uniform distribution of pressures inside the mattress.

Another of the problems of known antidecubitus mattresses concerns the con

formation of mattress cells that generally have a sustan shape

cially to parallelepiped, with a rectangular section, fixed to a bottom of the

mattress with hooks attached to the ends of the cell.

This method of fixing the CE! Ldas does not allow an ideal behavior of the

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mattress. Indeed, in a completely deflated mattress, the cells are

accommodated on the longest side, while during the inflation operation it happens

Some cells may adopt different positions and orientations of

those originally desired, remaining, for example, horizontal. From

this way you get a surface that is not uniform from the mattress or a sink

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due to excessive distance between one cell and the next.

Another problem of antidecubitus mattresses according to the known technique refers to

to the devices present to d, detect the inclination of a portion of the cabbage

chon, due, for example, to the inclination of the back of the bed on which

The patient is supported.

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These devices are placed inside the antidecubitus mattress, in general,

near the patient's head.

For example, devices that have a shape container are known

spherical, within which there is a sphere of mercury, equipped with electrical contacts

cos arranged along its circumference; the container can detect the

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displacement of the sphere of mercury inside, displacement that can

if caused by the inclination of the back of the bed.

Other known systems use rockers or other mechanisms tending to

allow or prevent the exit of the air from the respective holes, modifying

only the amount of intro air, judged on the mattress, inevitably dispersing

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Mind the air in pressure out.

Devices that use electric current are potentially dangerous,

while pneumatic-mechanical systems are often heavy and large

tamar "io.

The purpose of this invention is to make an antidecubitus mattress that exceeds

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The problems of the known technique.

Another purpose of the invention is to offer a mattress with consumptions containing

Two and simple operation.

These purposes and advantages are obtained. all of them, of an inflatable mattress, which

can be connected to an inflation and deflation system, and tends to raise a pa

It is based on antidecubitus therapy and includes:

a first series of inflatable cells;

a second series of inflatable cells;

at least one feeding tube that can be connected to the system

inflated and deflated;

a first collector connected to the first series of cells and at least

a feeding tube; where the first series of cells and the second series of cells are arranged adjacent to each other to define as a whole a single structure with a first lateral edge and a second lateral edge, and where the first manifold is arranged along the first lateral edge . In particular, the mattress according to the invention comprises a second manifold connected to the second series of cells and at least one feed tube and arranged along the second side edge. Thanks to the presence of two collectors, fed by the same feeding tube, but arranged separated from each other and positioned on opposite sides of the mattress, to each feed a series of cells, the inflation is more balanced of the cells; in other words, a series of cells can be fed by a collector arranged to the left of the mattress, while the other series of cells is fed by a collector arranged to the right. In this way, the two series of mattress cells according to the invention, which are inflated alternately, do not suffer an unbalanced inflation on a single side, as may, however, happen in the mattresses according to the known technique where a technique is present. single collector arranged along a single side. The inflatable mattress according to the invention provides that one or more cells comprise two different chambers; in particular, a cell of the first series of cells may comprise two chambers, of which one is arranged at the top and connected to the first collector; similarly, also (or alternatively) at least one cell of the second series of cells may comprise two chambers, of which one is connected to the second collector. The second chamber of the cells, that is, the one not connected to the respective manifold, can be inflated to a predefined pressure and not be connected to any feeding conduit, so that the mattress, regardless of the inflation of the cameras properly connected to the collectors , have a minimum inflation, which can not be reduced, because the cell chamber is already inflated. To always maintain maximum pressure in the second chambers, the inflatable mattress according to the invention is characterized by the fact that the first chamber and the second chamber of the first and second chamber of the second series are connected to each other through a check valve, so that the air in each of the second chambers has a pressure greater than or equal to the air contained in the respective first chamber to which they are connected. Advantageously, the first collector can comprise a first conduit and a second conduit and, similarly H, the second collector can comprise a first conduit and a second conduit. The first chamber and the second chamber of the first series of cells can be connected respectively, to the first conduit and the second conduit of the first collector and, similarly, the first chamber and the second chamber of the second series of cells can be connected respectively, to the first conduit and the second conduit of the second collector. In this way the air present in both the first chamber and the second chamber of each cell can have a controlled pressure. In addition, the inflatable mattress, according to the invention, may comprise a third and fourth series of cells; the third series of cells may comprise a first chamber connected to a third conduit included in the first collector and a second chamber connected to the second conduit of the first collector; the fourth series of cells may comprise a first chamber connected to a third conduit included in the second collector and a second chamber connected to the second conduit of the second collector; the cells of the first series of cells and the second series of cells may be arranged adjacent to each other and to a first part of the patient's body, while the cells of the third series of cells and the fourth series of cells may be arranged adjacent each other and a second part of the patient's body dHI. Thanks to this characteristics, different parts of the patient's body can receive another type of treatment, being possible to control the pressure in four, but also in more series of cells. Advantageously, the second conduit of the first collector and the second conduit of the second collector can be connected to each other, to obtain the same pressure in the second chambers of all cell series. To strengthen the structure of the cells, the first chamber of one or several cells

das can internally understand a doggy diaphragm. Advantageously, the inflatable mattress may comprise a cover tending to contain the different components, in particular the cell series, the first Collector, the second collector. Thus, the inflatable mattress is presented as a unique structure from which a feeding tube comes out. In addition, the inflatable mattress, according to the invention, can comprise a device of ventilation connected to the feeding tube and tending to ventilate internal Mind the mattress. In addition, a sensor band connected to the feed tube may be present. Advantageously, in the inflatable mattress, according to the invention; may be buy given a flexible tube arranged longitudinally in the mattress, a tube connects ble to the inflation and deflation system, through pressurized air. Thanks to this flexible tube, the inflation and deflation system can detect if the mattress is folded, with the consequent partial or total obstruction of the flexible tube and increase of pressure. The inflatable mattress may also comprise a deflation device with nected to the first collector and the second collector, device that allows a disinfection Fast cushioning of the mattress if necessary. Advantageously, the second cell chamber of the first series of cells and / or the second cell chamber of the second series of cells can accommodate in Tenderly a cushion. In this way, a soft layer of ba is also guaranteed. I know, even if the cameras connected to the collectors are completely deflated. In addition, thanks to this arrangement, the cushion cannot be damaged or contaminated. Other features and details of the invention can be better understood with the following description, as well as with the design attached, where: fig. 1 is an axonometric view of a mattress, according to the invention; fig. 2 shows the mattress of Figure 1 according to another axonometric view; fig. 3 shows the mattress of figure 2 with an element in transparency;

fig. 3A

shows a detail of the mattress indicated with A in fig. 3;

fig. 4

it is an exploding view of a colchon, according to the Invention;

fig. 5

it is a sectional view of a mattress, according to the invention;

fig. 6 to 10 show a component of a mattress according to the invention, respectively two axonometry views, one from above and two in section;

fig. 11, 12 are respectively sectional and axonometric views of a internal element of a mattress, according to a variant of the invention; lafig 13 is a schematic view of another element of a mattress, according to Another variant of the invention. With reference to the attached figures, in particular to figure 1, with 10 indicated a reliable mattress comprising an upper fabric 11 and a feeding tube 12 seven-way connected to the management and control system (not visible in the figure) by means of a connector 90. In the upper fabric 11 a figure 13 in the form of feet can be identified, which it allows to recognize in which sense t'la to position the mattress 10. In addition, of the upper fabric 11 laterally protrudes a rapid deflation device 76, described in detail below. As noted in Figure 2, of the upper fabric 11, on the side opposite that described above, a head valve 73 protrudes, which will be described later in detail. With reference to figures 3 and 3A, the upper fabric 11 is attached to an infe fabric rior 15 by means of a zip 17. Between the upper fabric 11 and the fabric in ferior 15 are arranged twenty cells indicated in figure 3 with the reference

twenty-one .

The twenty cells 21 are held in position by a pair of strips 23 that enclose each cell 21, by a right manifold 14 and a left manifold 16, the latter visible in Figure 4. Each cell 21 is linked to a right and left manifold. 14, 16 at two points, respectively at the base and at the top of the cell, for a total of four links for each cell 21. In addition, each pair of strips 23 is welded to the respective cell 21. Thanks to the links described above, each cell 21 is guided and maintained in the correct position and orientation, preventing the cells from remaining horizontal and avoiding the formation of subsidence. With reference to FIG. 4, the feeding tube 12 communicates with the right manifold 14, with the left manifold 16, with a band with sensor 20 and with a dynamic air device 19 arranged on a sheet 18. The feed tube 12 it is connected to inflation means by means of channels present on one of its faces 22, thus being able to exchange the pressurized air with the right manifold 14 by means of a first right discharge 28 and a second right discharge 30. Similarly, the supply 12 exchanges the pressurized air with the left manifold 16 by means of a first left discharge 24 and a second left discharge 26. The right manifold 14 comprises three different chambers that run in parallel with each other and are defined below first right binary 32, second right binary 34 and third right binary 36. Similarly, the left manifold 16 comprises three distinct chambers defined below pr left binary 38, second left binary 40 and third left binary 42. The first right discharge 28 is connected to the first right binary 32 of the right collector 14, while the second right discharge 30 is connected to the second right binary 34 of the same collector right 14. Similarly, the first left discharge 24 is connected to the first left binary 38 of the left collector 16, while the second left discharge 26 is connected to the second left binary 40 of the left collector rnismo 16. The third left binary 42 and the third right binary 36, are arranged forming a frame, surrounding the first and second binaries, thus obtaining a better behavior of the respective collector, to favor the containment and compactness of touching the inflatable mattress 10. The third right binary 36 communicates with the third left binary 42 through a duct 37. The first left binary 38 transmits you pressurize air into a first series of cells 44 by means of a first connection 46, while the first right binary 32 transmits air under pressure to a second series of cells 48 by means of a second connection 50. To favor the understanding of the mattress 10 according to the invention, the first series of cells 44 and the second series of cells 48 have been represented in Figure 4 with a single cell for each series. Naturally the cells of each series are in greater numbers and alternate with each other consecutively, as shown in Figure 3. Similarly, the second left binary 40 transmits air under pressure to a third series of cells 52 by means of a third connection 54, while the second right binary 34 transmits air under pressure to a fourth series of cells

56 by means of a fourth connection 58. With respect to the number of cells seen

In Figure 4, the same considerations apply to the first series of cells 44 and to the second one "ie of cells 48.

The first series of cells 44 comprises a dynamic portion 60, fed directly by the first connection 46 and a static portion 62 that communicates with the third left binary 42 of the left manifold 16 by means of a static connection 64. Similarly, the second cell series 48 comprises a dynamic portion 66, fed directly by the second connection 50 and a static portion 68 that communicates with the third right binary 36 of the right manifold 14 by means of a static connection 70. Also the third series of cells 52 comprises a dynamic portion 61, fed directly by the third connection 54 and a static portion 63 that communicates with the third left binary 42 of the left manifold 16 by means of a static connection 64. Similarly, the fourth series of cells 56 comprises a portion dynamic 67, fed directly by the fourth connection 58 and a static portion 69 that communicates with the third binar io right 36 of the right manifold 14 by means of a static connection 71. The third right binary 36 also communicates with a head valve 73 via a conduit 74. The head valve 73 regulates the discharge of air to a fifth series of cells 72. The fifth series of cells 72 comprises a single portion 75 which It does not subdivide into a dynamic portion and a static portion. Also for the fifth series of cells 72 the considerations regarding the number of elements represented in Figure 4 apply. The inflatable mattress 10 comprises twenty cells (indicated in Figure 3 generically with the numerical reference 21), of which twelve configured as the first and second series of cells 44, 48, five as the third and fourth series of cells 52, 56 and three configured as the fifth series of cells 72. As illustrated in Figure 4, the right manifold 14 and the Left manifold 16 has a rapid deflation device 76 connected which can also be seen in Figure 1, via four channels 78, respectively connected to the first right binary 32, the first left binary 38, the third right binary 36 and the third left binary 42 thus allowing a sudden deflation, when necessary. In addition, the dynamic air device 19 is connected to the supply tube 12 by means of a discharge tube 80 and the sensor band 20 by means of two discharges 82, 84. The discharge is connected directly to the dynamic air device 19 80,

which presents a series of holes of smaller dimensions to introduce

air inside the inflatable mattress 10 between the different elements of which is

tá compound. This improves the behavior of the mattress by imposing a re

air circulation, for example, lowering the humidity present inside and

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facilitating the removal of steam.

The sensor band 20 comprises a control tube 25 that largely covers

of the surface of the band with sensor 20.

The control tube 25 has a first end connected to the discharge 82 and a

second end connected to the discharge 84.

10

The sensor band 20 comprises a series of layers, in particular a prime

ra rigid base layer, a second layer comprising the control tube 25 and

a third layer of calibrated density. The three layers described above

They are conveniently inserted in a sealed cover.

In addition, the sensor band 20 is positioned between the right and left manifold.

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I remain 14, 16 below the sheet 18.

As noted in Figure 5, the first series of cells 44, as well as the second

da, third and fourth series of cells 48, 52 and 56 not shown, comprises a

separation diaphragm 86 which, in turn, has a non-return valve, does not re

presented in the figure, which allows the passage of air from the dynamic portion 60

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to static portion 62, in a single direction.

The connector 90, as seen in Figures 6.7, comprises a supe body

rior 92 and a lower body 108. In the upper body 92 a

first outlet 94, a second outlet 96, a third outlet

exit 98, a fourth outlet 100, a fifth outlet 102, a sex

2S

the outlet mouth 104 and a seventh outlet mouth 106.

From the lower body 108, fixed to the upper body 92 by seven screws 110,

a first plug 11 2, a second plug 114, a third plug protrudes

116, a fourth plug 118, a fifth plug 120, a sixth plug 122 and a

seventh plug 124.

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The plugs protruding from the lower body 108, described above, is

They are connected to the power tube 12. The section of the outlets is

substantially rectangular hollow, to allow their introduction into

the corresponding channels on face 22 of the feeding tube 12.

The feeding tube 12 compresses channels that have a sustan section

Cially rectangular, each of them can be separated from the rest of the tube

feed 12 to a desired length.

As noted in Figure 7, a bolted body is bolted on the upper body 92.

tab 126, tending to allow the removable fixing of the connector 90 in the sis

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Management and control issues, not visiblHS in the figure.

The sixth outlet 104, visible sectioned in Figure 9, comprises a

suspended body 128, held in position by a spring 130 which is supported

on the upper body portion 92 where the sixth mouth of sa has been obtained

lida 104. From the part opposite the spring 130, a retaining ring 132 prevents the

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spring 130 push out the suspended body 128 and keep it closed

Hermetically the sixth outlet 104, preventing communication with the

sixth plug 122. The suspended body 128 acts as a self-locking valve

from the sixth outlet 104.

The second outlet 96, the third outlet 98 and the fifth mouth

l s

lida 102 have been homologous to the sixth outlet 104, to

conveniently communicating with the respective first download iz

quierda 24, second download left 26, first download right 28 and it

Gunda right download 30.

The fourth outlet 100, visible sectioned in figure 10, communicates directly

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so with the fourth outlet 118. The first outlet 94 and the sept

thymus outlet 106 are made homologously to the fourth mouth of sa

lida 100.

The first outlet 94, the fourth outlet 100 and the seventh mouth of

output 106 conveniently communicate with the three discharges 80, 82, 84, res

2S

communicatively with the dynamic air device 19 and the tube of

25 band control with sensor 20.

The respective communications have been made to allow the system to

management and control control the air pressure inside each one, guarantee

by correct correspondence Gon the respective elements of the mattress in-

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ftable 10.

The operation of the inflatable mattress 10 according to the in is described below.

vención, with reference to figure 4.

The feeding tube 12, connected to the management and control system, comprises

the appropriate inflation means that control the air pressure introduced into

each of the seven channels obtained on face 22, exchanges air under pressure

with each previously described element of inflatable mattress 10, determining,

in this way, his behavior before a patient who is lying on the

inflatable mattress 10.

5

For example, the patient's body may have the trunk placed over the pri

mere and second series of cells 44, 48, feet on the third and fourth series

of cells 52, 56 And head over the fifth series of cells 72.

By varying the pressure set in I ~ I right manifold 14 and in the left manifold

do 16 you get an independent behavior from the first series of cells

10

44 with respect to the second series of cells 48, for example, inflating and deflating

alternately with respect to each other, to constitute support zones varies

you give continuity to the patient lying on it. In the same way,

the third series of cells 52 and the fourth series of cells 56 can be inflated and disengaged.

Inflated alternately or to everyone's taste, according to other modalities.

l5

The first, second, third and fourth series of cells 44, 48, 52, 56 are controlled

only the pressure present in the dynamic portions 60, 61, 66.67 thereof,

while static portions 62, 63, 68, 69 are, respectively, common

unique to each other and fed by dynamic portions 61, 67 and / or 60.66 per

middle of the non-return valves. Static parts 62, 63, 68, 69 communicate

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with the third right and left binary 36, 42.

In addition, the third right binary 36 is attached to the third left binary 42 by

the duct 37, thereby obtaining the effect of having an average pressure

uniform between the different static portions.

The construction of the head valve 73 allows it to be adjusted in two positions.

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tion The first position directly communicates the third right binary

cho 36 with the fifth series of cells 72, thus allowing the maintenance of this

last at the same pressure of the third right binary 36. The second position of the

head valve 73 interrupts communication between the right third binary

36 and the fifth series of cells 72, putting the latter in download, to release

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the air contained in the fifth series of cells 72 in the outdoor environment, keep

the third right binary 36 being inflated at the same time. This second

position can, for example, be used for deflation independent of the

fifth series of cells 72 when fLlera necessary, for example, to favor

intubation of the patient obtaining a deflated s610 located in the part of the

head. If necessary, the healthcare personnel maneuver the rapid deflation device 76 to discharge the first right and left binary 32, 38 and the third right and left binary 36, 42, to discharge the mattress as quickly as possible.

5 possible. In fact, rapid deflation is generally used, for example, for emergency resuscitation interventions. If necessary, the healthcare personnel maneuver the tongue 126 of the connector 90 to remove it from its seat, thus interrupting the communication

10 with the management and control system. The particular construction of the second outlet 96, third outlet 98, fifth outlet 102 and sixth outlet 104 prevents unwanted deflation of the cells 21 of the inflatable mattress 10, thus ensuring patient support, for example , in case of displacements. The construction of the first outlet 94, the fourth outlet 100 and

! 5 of the seventh outlet 106, communicates with the outside the dynamic air device 19 and the control tube 25 of the sensor band 20. According to a variant of the invention, the first series of cells and the second series of cells may comprise a completely hermetic separation diaphragm to prevent communication between the respective dynamic portions and

20 static The third right binary (~ left would thus be at the same pressure of the static portion of the third series of cells and the euarta series of cells, thus allowing to control the pressure of the static portions of the first series of cells and the second series of cells limiting control only to the third and fourth series of cells, for example, controlling portion pressure is

2S tieas of the inflatable mattress only by controlling the cells destined for the foot area. According to another variant of the invention, an inflatable mattress may comprise a triple cell 144, particularly shaped, visible in Figures 11 and 12 comprising a first dynamic portion 146, communicating with its respective first

30 or second binary of the right or left manifold 14, 16 by means of a first door 148. The first dynamic portion 146 communicates, in turn, with a second dynamic portion 150 by means of through slots 152 obtained in a first diaphragm of separation 154 that divides the first dynamic portion 146 from the second dynamic portion 150.

A static portion 156, separated from the second dynamic portion 150 gives a

second separation diaphragm 158, communicates with its respective third binary

of the right or left manifold 14, 16 by means of a second door 160.

Inside the static portion 156 is contained a cushion 162 of elastic material,

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for example, expanded polyurethane. The presence of the pad 162 denlro de la por

Static tion 156 allows to eliminate the mattress of elastic material used according to the

known technique Its function of minimum support, in effect, is developed by ca

cushion 162 contained within static portion 156. Obtained from this mo

The advantage of not having the additional thickness of the mattress during operation

the

normal mattress 10, while in the case of a fully mattress

deflated or malfunction is obtained, however, the minimum support

for the patient

According to a further variant of the invention, an inflatable mattress may comprise

a flexible tube, of reduced diameter, arranged below the upper fabric,

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for example, on the right or left manifold, the same flexible tube being

air travel under pressure. When the inflatable mattress is folded, by

For example, in the case that the bed on which the bed is arranged is tilted

The flexible tube is crushed, preventing the passage of air. This interrup

The air flow can be detected by the management and control system

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of the inflatable mattress that reacts accordingly, for example, increasing the

minimum inflation pressure of the cells. The minimum inflation pressure is increased

side to support the patient's weight as well as possible, in case of

having the bed tilted, gravel differently in the lda with respect to the con

bed position in a completely horizontal position.

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The construction and positioning of the flexible tube can be tates to allow

the detection of a tilt of the back of the bed, for example, greater than

a minimum angle, below which it is not considered necessary to increase the

bearing pressure of the cells that support the patient.

According to another variant of the invention, an inflatable mattress may comprise a

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band with independent sensor 170 of substantially rectangular shape, view

ble in Figure 13, which in turn comprises a sensor tube 172 arranged in is

piral from the center of the band with independent sensor 170 and so

cover most of its surface9.

The spiral of the sensor tube 172 ending at the edge of the band with sensor in

dependent 170, is connected, via a conduit 174, to a valve 176. The valve 176 is, in turn, connected, via a conduit 178, to a pressure sensor 180, which communicates the detected precession to the management and control system by means of a connection 182. The valve 176 can conveniently comprise a device that interrogates the air passage in the event that the duct 178 is disconnected, thus preventing the exit of the air from the duct 174 Y from the sensor tube 172. The independent sensor band 170 it can, if necessary, replace the band with sensor 20, with the advantage of obtaining a measurement of the pressure variation in relation to the patient's weight / position without the use of pressurized air sent by the management and control system, guaranteeing reduced consumption and greater independence from the management and control system. The air contained in the sensor tube 172 and in the conduit 174, initially at atmospheric pressure, in case of crushing of the sensor tube 172, increases its pressure proportionally, which is detected, consequently, by the pressure sensor 180. The variation The measured pressure can be, for example, used to estimate the patient's weight / position and evaluate the inflation pressure useful for feeding the cells 21 to keep the patient suspended in safety conditions. The particular construction of the band with independent sensor 170 and of the sensor tube 172 allows to detect, also an inclination of the bed, for example of the backrest, since the different distribution of the weight / position of the patient in the sensor tube 172 translates into a different pressure detected by the pressure sensor 180 and, consequently, a different estimate of the patient's weight / position. This different estimation of the patient's weight will lead, for example, to increase the infusion pressure of the cells 21 in case of inclination of the back of the bed. According to a variant of the invention, an independent sensor band can comprise a sensor tube made, totally or partially, in plastic material, to prevent excessive crushing, thus preventing a part of the sensor tube from being isolated from the rest, running the risk of distorting the pressure measured by the pressure sensor. The inflatable mattress 10 according to the invention has the advantage of comprising the two right and left collectors 14, 16 which give the infiable mattress 10 superior stability and capacity with respect to the mattresses belonging to the known technique, for example, guaranteeing the lateral containment of cells 21 and the patient. Lateral containment is further guaranteed by the greater height maintained by the collectors, who do not suffer the crushing of

S the cells. In addition, the two right and left manifolds 14, 16, together with the alternating connection with cells 21, allow to avoid lateral imbalance in the inflation and deflation phases of the cells, unlike the mattresses belonging to the known technique , which have a single lateral collector.

10 The inflatable mattress 10, according to the invention, also has the advantage of presenting series of cells dedicated to specific parts of the body, whose pressures can be independently controlled according to the requirements, thus guaranteeing a flexibility of use superior to that of known mattresses. For example, the area dedicated to the feet can be managed independently with respect to

15 the areas dedicated to the trunk and the head, for example, imposing alternating operation on the foot cells, according to the predetermined times. The particular construction of the triple cell 144, according to the invention, presents, in addition to the above-mentioned advantages, also a better performance

20 from the point of view of cleaning, because the cushion 162 in elastic material is inside the triple cell 144, contrary to those of the known technique. In addition, the use of triple cell 144 makes the antidecubite mattress more flame retardant, thereby improving the degree of safety guaranteed. The sensor band 20 does not directly discharge out the air that

25 passes through, but restores it to the management and control system, allowing the antidecubitus mattress 10 to be maintained at the desired pressure without a continuous supply of pressurized air, allowing, for example, the compressor to shut down for certain time intervals, thus differentiating itself from the known technique, where a continuous supply of pressurized air to the mattress must be guaranteed.

30 Inside the mattress, to ensure optimum maintenance of the elements inside, through the dynamic air device 19 air is introduced that can come from the cells of the foot area, when they are deflated and / or directly from the air supply means, thanks to opportune configurations to obtain a programmed ventilation.

The effective construction of the flexible tube, tending to be crushed in the case of tilting the bed on which the patient rests, allows to have mechanical elements in motion and / or devices traveled by electric current inside the antidecubitus mattress.

S In addition, other variants and embodiments are available, to be considered included in the protection framework defined by the following claims.

Claims (1)

  1) Inflatable mattress (10) that can be connected to an inflation and deflation system, and helps to lift the patient in antidecubitus therapy and includes: a first series of inflatable cells (44); 5 a second series of inHable cells (48): at least one feed tube (12) that can be connected to the inflation and deflation system; a first manifold (16) connected to the first series of cells (44) and at least one feed tube (12); 10 said first series of cells (44) and said second series of cells (48), are arranged adjacent to each other, so as to define as a whole a single structure with a first side edge and a second side edge, said first collector (16) being arranged along the first side edge, where to include a second manifold (14) connected to the second series of cells (48) and by At least one feed tube (12) and arranged along the second side edge; wherein at least one cell of the first series of cells (44) comprises a first chamber (60; 146, 150) connected to the first manifold (16), and a second chamber (62; 156) and / or where the least one cell of the second series of 20 cells (48) comprise a first chamber (66) connected to the second manifold (14), and a second chamber (68); characterized by the fact that the first chamber (60) and the second chamber (62) of at least one cell of the first series of cells (44) are connected you give each other through a non-return valve, and / or the first chamber (66) and the second chamber (68) of at least one cell of the second series of cells (48) are connected to each other by means of a non-return valve so that the air in each of said second chambers (62, 68) has a pressure greater than or equal to the air contained in the respective first chamber (60, 66) to which they are connected. JO 2) Inflatable mattress (10) according to ", claim 1, wherein the first manifold (16) comprises a first duct (38) and a second duct (42) and the second manifold (14) comprises a first duct (32) and a second conduit (36), where the first chamber (60; 146, 150) and the second chamber (62; 156) of the first series of cells (44; 144) are connected respectively, to the first conduit

(38) And to the second conduit (42) of the first manifold (16), and the first chamber (66)

and the second chamber (68) of the second series of cells (48) are connected

respectively to the first conduit (32) and the second conduit (36) of the second

collector (14).

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3) Inflatable mattress (10) according to claim 2, may comprise a third

cell series (52), comprises a first chamber (61) connected to a third

conduit (40) included in the first manifold (16) and a second chamber (63) with

nectada to the second conduit (42) of the first collector (16) and in a fourth series

of cells (56) comprises a first chamber (67) connected to a third cen

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duct (34) included in the second manifold (14) and a second chamber (69) connected

tada to the second conduit (36) of the second manifold (14); the cells of the first

series of cells (44) and the second series of cells (48) being arranged ad

lying between 51 and a first part of the patient's body, the cells of the

third series of cells (52) and of the fourth series of cells (56) may be

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placed adjacent to each other and to a second part of the patient's body.

4} Inflatable mattress (10) according to claim 2 or 3, wherein the second duct

(42) of the first manifold (16) and the second conduit (36) of the second manifold (14)

They are connected to each other.

5) Inflatable mattress (10) according to one of the preceding claims, wherein the

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first chamber of at least one cell of the first series of cells (44) and / or

the first chamber of at least one cell of the second series of cells (48)

they internally comprise a perforated diaphragm tending to strengthen the cell.

6) Inflatable mattress (10) according to one of the preceding claims, where it is

including coverage (11.15) tending to contain the series of cells (44, 48,

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52, 56), the first collector (16), the second collector (14).

7) Inflatable mattress (10) according to one of the preceding claims, where it is

including a ventilation device (19) connected to the feeding tube (12) and

tending to internally ventilate the mattress (10).

8) Inflatable mattress (10) according to one of the preceding claims, where it is

JO

including a sensor band (20) connected to the feed tube (12).

9) Inflatable mattress (10) according to one of the preceding claims, where it is

including a flexible tube arranged longitudinally in the mattress (10), being able to

connecting said flexible tube to the inflation and deflation system and being traversed

Pressed air under pressure.

10) Inflatable mattress (10) according to one of the preceding claims, which includes a deflation device (76) connected to the first manifold (16) and to the second collector (14). 11) Inflatable mattress according to one of the preceding claims, wherein 5 gives chamber (156) of cell (144) of the first series of cells and / or the second cell chamber of the second series of cells internally host a cushion (162).