WO1994027548A1

WO1994027548A1 - Improvements to beds for clinical use

Info

Publication number: WO1994027548A1
Application number: PCT/ES1994/000054
Authority: WO
Inventors: Carlos BAÑO ANTON; José BAÑO ANTON
Original assignee: Bano Anton Carlos; Bano Anton Jose
Priority date: 1993-06-02
Filing date: 1994-06-02
Publication date: 1994-12-08
Also published as: AU6845294A

Abstract

An improvement to a clinical bed consists of a mechanism which provides for the alternate raising/lowering of two groups of elements linked to the bolsters which form the mattress, said groups of elements being actuated by means of cams linked to transmissions of the cardan type. Each group of elements forms a support for the patient, with the possibility of modifying the supports by changing the position of the groups of elements. Another improvement to the bed is a self-contained device intended to transfer the patient to or from the bed without subjecting the patient to prejudical movements. It comprises a rolling frame wherein a sort of comb is upwardly/downwardly displaceable. Another improvement to the clinical bed consists of a system for washing and cleaning the patient while the latter remains in bed. It is based on a heater connected to a shower. A pneumatic chamber, complementary of the matress lathing, is another improvement.

Description

IMPROVEMENTS IN CLINICAL USE BEDS OBJECT OF THE INVENTION

The invention relates to a series of innovations introduced in beds and / or armchairs for clinical use, which are commonly called therapeutic beds, in which users or patients remain for long periods of time.

One of the improvements is planned to allow the patient to rest his body on one or the other of the two sets of slats constituting the bed base, each set being associated with a group of upward and downward moving elements. Therefore, the patient is able to have his body alternately support through different areas or parts, thereby avoiding continuous support of the same parts or areas of his body and consequently preventing the formation of scales or ulcerations that with such They often occur in patients who remain in bed for long periods of time. A second improvement consists in complementing the bed with an autonomous device for transferring the patient, from the bed or to the bed, without being subjected to unwanted movements that could harm and / or cause pain. It is also characteristic of the invention, the incorporation of means or mechanisms to carry out these alternative movements of ascent / descent of the mounting or support elements of the slats of the bed frame, the mechanisms being fundamentally based on cams that will be duly actuated by means of arrangement. Suitable assets.

Another feature of the invention is a conditioning system that aims to allow the general cleanliness of the patient's body, without the latter having to move from the bed, a system that includes a shower connected to a heater, so that the patient can be subjected at any time and on the same bed to a shower, disinfection, elimination of pain, oxygenation, etc. Another feature of the novelty object of the invention is that the slats of the bed base can be complemented with a pneumatic chamber located superiorly along the entire length of the slat, fitting together at its ends in lateral supports that will then be connected to the stringers of the bed base , this being very comfortable since it will dampen the support points of the body of the user or patient with remarkable smoothness.

BACKGROUND OF THE INVENTION It is known that in patients and / or disabled persons who must remain in bed for a long time and in the same position, ulcers and scales occur in the body of these patients or persons, such as consequence of that continuous and elongated support. Given these facts, the suffering of the patient is difficult to bear and must be permanently subject to priests and change of position by family members or health personnel, in case the patient is in a clinic, hospital, etc.

The most that has been achieved to try to partially alleviate these ulcerations produced in patients, is that the bed base is deformed by articulated parts that can be tilted relative to each other, although such articulated structure of the bed base is fundamentally designed so that the patients occupy certain positions of their body and limbs, but always maintaining constant support on the surfaces of the sections that determine the bed base.

On the other hand, the beds for clinical use do not allow the total hygiene of the patient's body when it is located on them, being necessary otherwise transfer the patient out of these beds.

It is also noteworthy that in certain cases the slats or crossbars that constitute the surface or bed of support for the user's body, pose serious problems in those people with certain types of ailments or problems, or in those people They must stay in bed for long periods of time.

DESCRIPTION OF THE INVENTION One of the characteristics of the invention is the incorporation of a cam device that acts on lateral elements of the bed base, being able to raise and / or descend one or other group of those elements so that the support of the body of the The user is carried out on certain occasions on certain areas or parts, and on other occasions on other areas or different parts, which determines a change in support in order to avoid the classic ulcerations and scales that occur in continuous supports, when A patient lies for long periods of time on a bed or even on a therapeutic chair.

In this sense, the device being applied to that type of bed bases that are formed by three parts articulated with each other, or to any type of bed base, it is provided that on each side there are, for each of those parts, a pair of elements likely to rise and / or descend alternately, based on the cam device referred to earlier, so that between these lateral elements are located the corresponding tables of the bed base, which in some cases a group of Tables will remain in a higher position than another group, which constitutes the support for the patient's body, while in another case the second group of tables will remain in a higher position with respect to the first group, constituting a different support for the patient's body.

The lifting mechanisms themselves are associated with each other by type transmissions.

"cardan" that transmits the turn even in the case of having inclined the sectors or parts that constitute the bed base itself.

As previously stated, the cam device or mechanism is based on a simple cam whose rotation will cause the elevation of one of the elements of each side, according to a position of the cam, and consequent descent of the other elements from the same side, while in another position of the cam the opposite will occur, determining this alternation of the elevation of one and another of the transverse parts or slats that constitute the bed base, so that the support areas of the The patient's body is different in both cases.

Another improvement object of the invention is to complement the described bed with an autonomous transfer device that allows the patient to be transferred from the bed to a bed and vice versa, without having to subject that patient to movements. In that sense, this autonomous transfer device is constituted from a right angle frame that supports a horizontal comb, vertically movable by guiding on the vertical section of the main frame, such that the elements or crossings that constitute the horizontal comb of the device can be placed under the bed base of the original bed, and by lifting it make the patient rest on that comb, then remove the autonomous device, which will logically be equipped with wheels, thus allowing transfer to the patient from bed to that bed and vice versa, without said patient being subjected to movements that may harm him.

The means of lifting the comb will be carried out by a small motor or any other conventional system, also counting the transfer device itself with a bar as a grip and push element for its transfer from one place to another.

On the other hand, it is provided, as another improvement of the invention, the incorporation of a variant of the cam system for the actuation of the constituent elements of the bed base itself, this new cam system being constituted by means of a single element ¬ to which the cams themselves are formed, being longitudinally movable to cause the alternate rise and fall of the support elements, that is, of the elements that constitute the bed base itself, supporting the single piece on which These cams are formed on a set of bearings to improve their displacement.

With this new conception the mechanism is simplified and a smoother and more synchronized movement is obtained.

Likewise, and as another improvement of the invention, the alternating elevation of the elements that constitute the bed base can be carried out or produced by connecting a pneumatic double circuit to inflatable slats or pads that will constitute the bed base itself.

Another improvement of the invention consists in providing the bed with a conditioning system to enable complete hygiene and disinfection of the patient.

Said system is based on a shower circuit determined by a heater that, through a valve, is connected to the shower itself.

Below the bed a water collection tank has been arranged, through which the excess water from the shower supplied to the patient is collected.

In addition, the arrangement of a vaporizing device is provided from the bottom of the bed. tion by which the cleaning and disinfection of the patient is performed.

The vaporization device consists of an ultrasonic vaporizer, consisting of a tank in which the liquid to be vaporized is included, in which a quartz transducer is submerged, whose oscillation is governed by an electronic circuit that in turn It is connected to a self-protection circuit that detects the absence of liquid in the tank and interrupts the supply of the electronic circuit that governs the oscillation of the transducer, preventing it from vibrating without absorbent load, a circumstance that would damage it in a short time.

In addition, below the bed a fan is provided whose output is facing a heater, to enable drying of the patient.

Both the dryer and the vaporizer, of negative ions, are arranged on a frame that through an axis that is related to an endless chain moved by two pulleys, provides the movement along the entire length of the bed, so that It reaches all parts of the patient's body.

Another element that is arranged in the lower part of the bed, consists of a negative ion generator, through which odors, allergies are eliminated, and oxygenation is authorized.

Likewise, a final improvement susceptible to incorporation into the bed is provided, consisting of the improvement in question in a pneumatic chamber in which two cavities are determined, among which a traverse is fitted; having also provided a lower plank on which the said pneumatic chamber rests and sits, so that both the ends of the lower plank and the ends of the crossbar of the chamber fit into lateral supports that are fixed to the stringers of a bed frame or bed frame.

The physical sensation that occurs when placed on top of the pneumatic elements of the invention, is logically that of gently damping the support points of the user's body that contacts said pneumatic elements.

DESCRIPTION OF THE DRAWINGS To complement the description that will then be made and in order to help a better understanding of the features of the invention, a set of drawings is attached to the present specification based on which more will be understood easily innovations and advantages derived from the improvements object of the invention. Figure 1.- It shows a representation according to a schematic side view of a bed whose bed base comprises three articulated parts, counting on each side with the two groups of elements that can alternatively occupy lifting and lowering positions, as a consequence of the device of cams acting on them.

Figure 2.- Shows a schematic side elevation view of one of the sides corresponding to the elements that can be raised and / or lowered, which are at the same height and above them a patient whose body will rest precisely on one or another group of those elements.

Figure 3.- Shows a view of one of the sides of the bed base where you can see the two groups of elements on that side, one in an elevated position with respect to the other.

Figure 4.- Shows a view of the configuration of the cam by which the elevation and / or descent of the two groups of elements provided on each side of the bed base is achieved. Figure 5.- Shows a schematic view according to a side elevation of the transfer device that is part of the object of the invention.

Figure 6.- Shows a longitudinal plan view of the same device represented in the previous figure.

Figure 7.- Shows a schematic view according to a side elevation of a variant embodiment of the cam system for the upward / downward operation of the elements corresponding to the bed base in which the improvements of the invention are introduced .

Figure 8 .- Finally shows a schematic representation of a variant embodiment of the lifting / lowering system, constituted in this case by a pneumatic double circuit linked to a series of slats or inflatable pads constituting the bed base itself.

Figure 9.- Shows a schematic diagram of the application of a shower conditioning device located in the immediate vicinity or under the bed.

Figure 10.- Shows a functional block diagram of the ultrasonic vaporizer that is placed under the bed and supported in a movable frame, in which a dryer is also fixed, all of which is part of the system represented in the previous figure.

Figure 11.- Shows an electronic scheme of an example of realization of the ultrasonic vaporizer of the previous figure.

Figure 12.- Shows an electronic diagram of an example of embodiment of the negative ion generator, which is also located under the bed.

Figure 13.- Shows an elevation view of the pneumatic chamber incorporated in each slat of the bed base, with the lateral supports sectioned. Figure 14.- Shows a cross section corresponding to the line of cut AB of the previous figure.

DESCRIPTION OF THE PREFERRED EMBODIMENT

In view of figures 1 to 4, it can be seen how the structure of the bed 1, which can also belong to what is a therapeutic chair, includes a frame 2 for the corresponding bed base, this being determined by a central sector 3 and two extreme sectors 4 and 5, articulated with each other, according to reference 6 of Figure 1.

Well, that bed base determined by the three sectors, 3,4 and 5, articulated with each other, presents as a particularity that in each of those sectors and laterally to them, pairs of elements or groups 7 and 7 'have been provided, mounted in such a way that each group 7 can rise and / or descend with respect to group 7'and vice versa, and this based on cam devices, 8, which are associated with each other through a "cardan" type transmission 9 which allows the rotation of the cams 8 even when the sectors that are part of the bed base can be inclined, as shown in figure 1.

Cam 8, represented in Figure 4, has two sectors 10 and 10 'which determine recesses with respect to the circular periphery of that cam 8, and in which it is capable of supporting a wheel belonging to elements 7 and 7', which they are damping elements for the formation of the bed base itself.

It should be noted that the relationship between the cams 8 referred to above is such that one group 7 of elements will not descend until the other group 7 'has taken its place of support. That is, there will always be a group of elements 7 or 7 'in their position of maximum elevation, so that the user's body is always supported. Needless to say, though throughout the In the present description the improvements have been foreseen for application in bed bases, undoubtedly, and as it has been said before, they are equally applicable to articulated structures of therapeutic chairs.

As can be seen in figures 2 and 3, the groups of elements 7 and 7 'that occupy the sides of the box spring will, in both cases, constitute the support for the patient's body 11, so that this support will always be done, either on the groups or elements 7, or on the groups or elements 7 ', for which logically one of these groups or elements must be in a higher position with respect to the other, as shown in Figure 3.

Figures 5 and 6 show the autonomous transfer device, conceived as a complement to the bed. Said device is constituted from a frame 11 in "L", on whose vertical section 12 it is movable from a support 13 to which a plurality of determining elements 14 are joined together of what can be considered as a comb, that support being actuated 13 by means of a motor 15 to carry out the movements of ascent and descent, and therefore of the comb formed by the elements 14, this autonomous transfer device being complemented with a bar 16 constituting the grip means for the thrust and run ¬ Convenient transfer of device 11, as it has wheels 17 at its bottom.

According to what has just been exposed, the comb formed by the elements 14 remain in horizontal arrangement, and in its ascent and descent movement it will be arranged under the bed of a bed, in order to enable the user, in this In the case of a patient or patient, it can be transferred from the bed to that bed that forms the comb 14 and thus be able to be transported from one place to another, or keep it in that bed of elements 14 while conditions the bed, without of course that patient or patient suffering the slightest movement that could harm him.

Logically, the elements 14 will be located between those that form the bed base of the bed, so that in their elevation they are arranged above those elements of the bed base and constitute the support bed for the patient himself.

On the other hand, in figure 7 the elements 18 and 18 'are shown to which the corresponding slats constituting a bed base will be associated, whose elements 18 and 18 are movable upwards / downwards, of alternative way, to determine alternative supports for the patient himself, in order for him to support his body in different areas and thus prevent the formation of ulcerations. Such elements 18 and 18 are actuated, in their upward / downward displacements, by means of a series of cams 19 formed in a common piece 20 horizontally movable in both directions, as shown in Figure 7, and whose cams 19 have a ramp 21, supporting the piece 20 on a plurality of rollers 22 that allow a smooth and uniform movement of the piece 20 and therefore of the cams 19 formed therein. The movable elements 18 and 18 'are associated with respective bodies 23 and 23', which as seen in Figure 7, the bodies 23 are located in the upper plane of the cams 19, plane that is horizontal, while the bodies 23 'are located at the bottom, that is, at the beginning of the corresponding ramp 21. Thus, from the situation represented in that figure 7, where the elements 18 are in the raised position and the elements 18 'in the down position, when the displacement is made towards one side of the piece 20 and therefore of cams 19, displacement will begin of the bodies 23 'along the ramp 21, the elements or bodies 23 being kept in the upper horizontal plane of the cams 19, until those elements 23' reach precisely the end of the ramp 21 and therefore the upper plane where the elements 23 were located, these falling and therefore producing the lowering of the elements 18, after having reached the elements 18 'the upper level, so that the patient or user is constantly supported, either on the associated parts ¬ das to elements 18, either on the parts associated with elements 18 '.

The elements 14 represented in that figure 7, are those that constitute the comb of the autonomous transfer device shown and described in the two previous figures.

In figure 8 ^§ , an alternative form of the alternate lifting system of the elements that constitute the bed base itself is shown, being carried out by means of a pneumatic system that can be constituted, as seen in figure 8, by a double circuit tire associated with a series of inflatable slats 24 and 24 ', arranged alternately with each other, since these slats 24 and 24' are those that will ascend and / or descend alternately as did elements 18 and 18 'described in Figure 7, said pneumatic circuit comprising a distributor 25 and 25 'for each group of slats 24 and 24', associated, in each case, with a cam 26 and 26 'which supports on a wheel 27 and 27', respectively, these distributors being 25 and 25'associated to an exhaust air silencer tube 28 and 28 ', there is a filter group 29 of the compressed air, with pressure reducer and lubricator.

According to this pneumatic system, a sequence of operation can be established with timers, or by means of a programmable automaton, being able to use solenoid valves, such as the distribution groups 25 and 25 ', being able to vary the times in each position, that is, to establish the fast or slow sequence regimes to the limit established. In figures 9 to 12 the conditioning system is shown by which the body cleaning of the patient on the same bed is possible, so that to achieve such a provision it is provided that in proximity to the bed generally referenced with the numbers 30 and 31 (these corresponding to elements 7 and 7 'or 18 and 18' referred to in the previous figures) include a heater provided with a tank 33, resistor 34, thermostat 35 and control panel 36. The heater is connected to a shower 37 through a pump 38, the excess water from the shower being collected in a tank 39.

Below the bed there is included a frame 32 which is connected by an axis 40, and through a stud 44 with a chain 43 which is moved by rollers 42. To facilitate the guidance of the axis 40, the guides 41 are arranged.

In this way, the displacement of the frame 32 is allowed along the entire bed.

On that frame 32 a fan 45 is fixed whose outlet is arranged in proximity to a heater 46, the assembly determining a dryer that moves along the entire bed, being fixed to the frame 32, performing the drying of all the body parts of the patient. Likewise, an ultrasonic vaporizer is fixed on the frame 32, which is determined by a tank 47 in which the liquid 48 to be evaporated is included.

A transducer 49, of ceramic type, constituted by quartz, which is submerged in the liquid 48 It is connected to an electronic circuit 50 that provides the pulsating signal that enables oscillation of the transducer 49.

In addition, terminals 48 that detect the presence of liquid are submerged in the liquid 48, as will be explained later, so that when said liquid falls below a predetermined level, this circumstance is detected by a self-protection circuit 51 which is connected to the supply 52, thereby cutting off the power to the electronic circuit 50, preventing the transducer 49 from oscillating, thereby preventing it from being damaged when running in a vacuum.

Using the ultrasonic steam generator, the cleaning and disinfection of the patient is carried out. Likewise, and below the bed, a negative ion generator is arranged, through which odors, allergies are eliminated, while oxygenation occurs.

A description of an embodiment of the ultrasonic steam generator is given below, all with the help of Figure 11.

According to the exemplary embodiment, the circuit 50 which provides the oscillation frequency of the transducer 49, has a transistor 53 whose base is connected through a capacitor 54 to the piezoelectric transducer 49. This piezoelectric transducer 49 has to operate at its maximum power, so it is essential to immerse it in the liquid to evaporate 48, since otherwise, the ceramic material when vibrating without absorbent load would be damaged in a short time.

The transistor 53, together with the capacitors 54 and 55 and the winding 56, constitute an oscillator type COLPTTS, together with the piezoelectric transducer 49.

The correct bias voltage of the base of transistor 53 is regulated by potentiometer 57, so that it is always oscillating. In short, the electronic circuit 50 that provides the oscillation frequency, performs the same operations as those performed by any audio frequency oscillating stage to oscillate a transmission quartz.

In addition, the collector of transistor 53 is connected to a Fast diode 58, whereby reverse voltage spikes that can damage transistor 53 are avoided.

With the characteristics of the transistor, and as a detail, it should be noted that it makes an average consumption of approximately one amp, so it must be mounted on a cooling fin, to avoid overheating.

The transistor 53 is connected to a second transistor 59 that is part of the self-protection circuit, and which constitutes a switch that prevents the passage of supply voltage to the electronic circuit 50 that supplies the oscillation voltage, as is below explained.

The second transistor 59 is used as an oscillator to achieve a frequency of about 600-650 KHz. The transmitter of this transistor 59 collects said frequency, by means of a capacitor 60 and is applied to a probe 61 which is placed inside the tank 47.

This frequency is applied to the liquid to evaporate, such as water, which is conductive, being received by a second probe 62 also located inside the tank 47.

While the liquid level covers the two probes 61 and 62, that frequency can reach, through a condenser 63, the non-inverting input of an operational circuit 64. The output of the operational circuit 64 has a logical level 0, if both probes 61 and 62 are exposed, that is, when the water to vaporize is missing, since the signal generated by transistor 59 does not reach probe 62; and therefore a logical level 1 when the water covers the two probes 61 and 62, when the transmission of the frequency delivered by the transistor 59 is allowed. Therefore, the operational circuit 64 functions as a comparator to ensure a safe switching of the logical level when the two probes 61 and 62 are covered by water, and therefore the output of the operational 64 has a 1, the capacitor 65 being charged through a resistor 66.

In addition, the operational amplifier 64 is connected through the resistor 66 to the non-inverting input of a second operational circuit 67, whose output is related to the base of a third transistor 68 and the collector thereof to the base of the second transistor 59, so that the output voltage present in the operational circuit 64, is applied to the non-inverting input of the second operational circuit 67, with a certain delay, to prevent possible spikes or interferences from occurring, at the output of the Operational amplifier 64, a series of logic levels 1 or 0, which would consequently eliminate or apply voltage to the oscillator, which is undesirable.

When the voltage applied to the non-inverting input of the operational amplifier 67 is a 0, its output also shows a 0, whereby capacitor 65 is discharged through resistor 66 and 69, and when the discharge has occurred when the output of the operational amplifier 67 has a logical level 0.

The third transistor 68 is a Darlington transistor that conducts when the voltage applied to its base is a logic 1, a situation in which a LED 70 is lit, and the second transistor 59 drives, which in turn, it is connected to the power supply 52, allowing the positive supply voltage to reach the oscillating stage, and more specifically to the transistor 53, a situation in which the oscillation frequency of the piezoelectric transducer 49 is maintained.

Therefore, whenever LED 70 is on, the circuit is oscillating.

If, on the contrary, the liquid level 48 falls to the point where the probes 61 and 62 are outdoors, at the output of the operational amplifier 64 and 67 there will be a 0, whereby the LED 70 will remain off and the second transistor 59 in the cut-off state, preventing the passage of the supply voltage to the oscillating stage, so that the oscillation voltage is not applied to the piezoelectric transducer 49, thus being protected.

The power circuit 52 is not described as being well known.

Below is a description of the negative ion generator 72, which generates a large amount thereof, for which it uses a very high continuous voltage that exceeds 6,000 volts.

The ion generator is connected to the network by means of a transformer 71, whose secondary delivers a voltage of 400 volts, to a series of rectifier / duplicator stages, each of which is formed by two diodes 73 and two capacitors 74, appearing at the output of the last stage an approximate voltage of 7,896 volts. Said output is connected to four radiating tips 76. The voltage applied to each condenser is approximately 1,100 volts.

The secondary end of the transformer 71 is connected to an earthing and an aluminum plate 75 facing the four radiating tips 76, while the other end is applied to the chain of rectifiers / duplicators, to achieve at its ends a negative voltage of 7,700 volts, which is applied by means of a resistance 77 to the four radiating tips 76.

Although the aluminum plate 75 is connected to the secondary of the transformer, it does not represent a danger to the user, since there is no voltage in it, which constitutes an additional safety. Therefore, by means of the conditioner described, the complete hygiene of the patient is empowered, eliminating odors, allergies, disinfecting, and oxygenating, without him having to move out of bed.

Finally, another improvement that can be incorporated into the bed is that each of the slats 78 of the bed base is complemented by a pneumatic chamber 79 in which two cavities 80 and 81 or sub-aras are determined, one upper and the other lower, both of which are connected by tubes 82 that are part of the chamber 79, which is closely linked to an intermediate crosspiece 83, rigid but flexible, which is fitted between one and the other cavity 80 and 81. The chamber 79 rests on the corresponding slat 78 of the bed base, this being also flexible, the same fitting by its ends in lower openings 84 belonging to lateral supports 85 provided with narrow vertical channels 86, through which these supports 85 are coupled in the stringers of the bed frame or bed. The aforementioned supports 85 have other upper openings 87, in which the ends of the chamber 79 and the rigid cross member 83, adjusted as already described above, are inserted between the upper and lower cavity 80 of the same. Therefore, at bedtime a user in a Bed determined with a bed base that incorporates these new modules or pneumatic elements, a pleasant sensation of well-being is achieved, damping with remarkable softness the different points of support of that person's body.

Although in the exemplary embodiment, the chamber or pneumatic element 79 is determined by two cavities, it can be constituted by a single-chamber chamber, linked to the lower plank, eliminating the intermediate cross-member 83.

Both the intermediate crossings 83 and the lower slats have, respectively, curved surfaces 88, 89 and 90, which allow the correct seating of the pneumatic chamber 79.

Claims

CLAIMS 1.- IMPROVEMENTS IN CLINICAL USE BEDS, which being applicable both in beds of conventional bed bases and in those in which the bed bases are formed by sectors articulated with each other, being equally applicable in structures of armchairs convertible into beds, for use preferably by patients or persons who have to remain on the bed itself for long periods of time, essentially characterized in that it includes a pair of groups of lateral elements or supports (7 and 7 ') on which corresponding constituent slats of the bed are mounted. support for the body of the user or patient, said lateral supports (7 and 7 ') being linked to cams (8) whose actuation or rotation entails the movement of ascent of one of these support groups and corresponding descent of the other, when that has reached the level of elevation that the latter had, and vice versa, all in order to get different support areas s for the body of the user or patient; having foreseen that the descent of one of these support groups will only occur when the other support group reaches the maximum lifting position corresponding to that of use; with the particularity of including, in addition, an autonomous transfer device (11) to allow transferring the patient from or to the bed, without producing unwanted or harmful movements thereof, also including a conditioning system to enable a total cleaning of the body of the patient by shower (37) without him having to move from the bed; further characterized in that the respective slats of the bed base or support surface they constitute are complemented by a pneumatic chamber (79) located superiorly, constituting the support surface of the body of the user or patient.

2.- IMPROVEMENTS IN CLINICAL USE BEDS according to claim 1 ^§, wherein each cam (8) is affected by two lowered sectors (10 and 10 ') that allow the lifting and / or lowering of the groups of support elements (7 and 7'), in the rotation of those.

3.- IMPROVEMENTS IN CLINICAL USE BEDS, according to previous claims, characterized in that the cams (8) are associated with each other through suitable transmissions (9), type "cardan", which enable the rotation of the cams themselves ( 8) even in inclined positions of the extreme sectors (4 and 5) of the bed base.

4. IMPROVEMENTS IN CLINICAL USE BEDS according to claim 1 ^§, wherein the autonomous transfer device (11) movable by means of wheels (17), is formed from a frame bracket, provided with a horizontal branch of rolling means (17) and a vertical branch (12) on which a support (13) to which a plurality of elements (14) are fixed, determining a horizontal comb above, is mounted movable up and down. of the lower branch of the frame (11), these elements (14) of the comb constituting a bed capable of being disposed between the determining elements (18 and 18 ') of the bed base, to allow the transfer of the user or patient from said bed to the bed formed by these elements (14), and vice versa, with the particularity that the actuation of the support (13) is carried out by means of a motor (15), the assembly being complemented with a top and horizontal bar (17) of ma Nejo and push of the device itself.

5.- IMPROVEMENTS IN CLINICAL USE BEDS, according to claim 4 ^§ , characterized in that the therapeutic bed or chair equipped with the two sets of elements (18) and (18 ') movable upwards and downwards, alternatively, and linked to corresponding slats of the bed base, comprises a series of cams (19) formed in a single horizontal piece (20) movable towards one side or another on a plurality of support rollers (22), whose cams (19) have a ramp (21) through which the bodies (23 or 23 ') that push the groups of elements (18) rise or 18 '), resulting in the elevation of one group of these while the other remains in its highest position, the latter descending at the time the other bodies reach that elevated position.

6. IMPROVEMENTS IN CLINICAL USE BEDS, according to claim 5, characterized in that the bed base or bed of the therapeutic bed or chair is constituted by two groups of slats (24 and 24 '), inflatable alternatively by means of corresponding pneumatic distributors ( 25 and 25 ').

7. IMPROVEMENTS IN CLINICAL USE BEDS, according to claim 1, characterized in that the conditioning system to enable the total cleaning of the body of the user or patient on the bed itself, includes a heater connected by a pump (38) to the shower (37), to enable the patient's bath; a tank (39) for collecting excess water from the shower having been disposed below the bed; and with the particularity that underneath the bed a frame (32) of which a shaft (40) is connected, which is related to a chain (43), through a stud (44), is provided, the chain (43) arranged between two rollers (42), all in order to enable movement along the bed of the frame; it is also provided that a fan (45) is located on said frame whose output is facing a heater (46); all in order to empower the drying of the patient throughout his entire body; and having arranged on the frame, an ultrasonic vaporizer for cleaning and disinfecting the patient; and with the particularity that under the bed, in addition, an ion generator is included negative oxygenation and elimination of odors and aler ^¬ gies.

8. IMPROVEMENTS IN CLINICAL BEDS, according to claim 7, characterized in that the ultrasonic vaporizer is constituted by a reservoir (47) in which the liquid (48) to be evaporated is housed, in which a piezoelectric transducer is introduced (49) which is connected to a circuit (50) that provides the oscillation frequency; the circuit (50) being provided to be connected to a power source (52) through a self-protection circuit (51); which in turn is connected to probes (61 and 62) that are submerged in the liquid (48); all this in order that when said liquid (48) drops below the probes (61 and 62), it is detected by the self-protection circuit (61) and interrupts the supply to the circuit (50), preventing the piezoelectric transducer ( 49) swing, all in order to prevent it from being damaged.

9.- IMPROVEMENTS IN CLINICAL BEDS, according to claims 7§ and 8§, characterized in that the negative ion generator is preferably constituted by a transformer (71), the secondary of which is connected to a plurality of grinding / duplicating caps (62), the last one of which is connected to a plurality of radiant tips (76), and these facing an aluminum plate (75), which in turn is connected to a ground and the secondary side of the transformer ( 71) and to the grinding / duplicating chains (72), so that the tension applied to the aluminum plate (75) is zero, avoiding possible accidents; and with the particularity that the tips (76) are connected to the last amplifier stage, through a high-value resistor (77), which limits the current flowing through them, determining an additional safety.

10.- IMPROVEMENTS IN CLINICAL BEDS, according to claim 1, characterized in that the pneumatic chamber (79) located on each slat (78) of the bed base comprises two cavities (80) and (81), one upper and one lower, communicating both by means of tubes (82) which are part of the chamber itself (79); an intermediate crossbar (83) established between the two aforementioned cavities having been provided, at the same time as it has curved surfaces (88 and 89), which complement the chamber (79), coupling the ends thereof together with the ends of the intermediate crossbar (83) in upper openings (87) belonging to lateral supports (85), provided with vertical channels (86), through which said lateral supports (85) are fitted. on the stringers of the bed frame; having also provided in the supports other lower openings (84) for fitting the lower blade (78), with the particularity that both this and the chamber, together with the intermediate crossbar (83), are directly coupled to the frame stringers of the bed base.

11.- IMPROVEMENTS IN CLINICAL USE BEDS, according to the preceding claim, characterized in that the pneumatic chamber (79) is capable of being constituted of a single cavity, thus settling on the lower plank (78), regardless of the intermediate crossbar (83).