DE102020002218B4 - Device for cleaning and processing of movable objects used in hospitals and nursing homes designed as treatment goods such as hospital beds, care beds, children's beds, mattresses, stretchers, transport chairs and bedside tables as well as control or regulating device for such a device and use of dry ice for cleaning hospital beds, care beds, Cots, mattresses, stretchers, transport chairs and bedside tables in a decontamination chamber - Google Patents

Abstract

Device for cleaning and processing mobile objects (6, 27) used in hospitals and nursing homes and designed as treatment goods, such as hospital beds, care beds, children's beds, mattresses, stretchers, transport chairs and bedside tables in a stationary cleaning and processing plant, in which the objects in question are intermittently individually cleaned or are arranged in continuous operation in a decontamination chamber (1) that can be opened and closed at a predetermined time and for specific objects, with the objects (6, 27) there being sprayed under pressure from multiple sides with dry ice such as pellets or snow and then out of the relevant decontamination chamber (1) can be moved to a collection point, the decontamination chamber (1) having doors (3, 5) that can be opened and closed in the conveying direction (G) at the front and rear, with the ceiling area (7) and the opposite side walls (8, 9) next to n and/or several spray nozzle devices (10, 11, 12) for the dry ice are arranged one after the other, to which the dry ice can be supplied at a specific time and/or volume and under a specified pressure according to a specified program, with the device having a central assigned to a data memory or a central control or regulation device (26), in which amounts of data are stored in the form of programs for the individual objects (6, 27) to be processed in the relevant decontamination chamber (1), the central control or regulation device (26 ) supplies the spray nozzle device (10, 11, 12) with dry ice, depending on the program called up and depending on the object (6, 27) to be processed, such as hospital beds, bedside tables or the like.

Description

The invention relates to a device for cleaning and preparing movable objects used in hospitals and care homes that are designed as items to be treated, such as hospital beds, care beds, children's beds, mattresses, stretchers, transport chairs and bedside tables.

Furthermore, the invention relates to a control or regulating device for the device described above.

Finally, the invention relates to the use of dry ice for cleaning hospital beds, care beds, children's beds, mattresses, stretchers, transport chairs and bedside tables.

State of the art

In clinics, so-called "bed centrals", for example for hospital beds, are used, in which hospital beds or the like are cleaned and disinfected or processed by mechanical preparation/wet disinfection or by manual scouring wipe disinfection.

Automated processing produces not inconsiderable amounts of water and chemicals. This puts a strain on employees and the environment, quite apart from the fact that hospital beds or the like have to be rinsed and dried. The resulting energy costs are relatively high. The items to be processed must be heated to 70°C.

The chemicals produced during mechanical processing cannot simply be drained into the sewage system, but must be stored and removed in special collection containers. The resulting disposal costs are also not insignificant.

From the DE 20 2015 002 524 U1 is a previously known device for treating objects, in particular crates, paloxes, pallets or the like, with at least one treatment chamber for cleaning the object and with provisions for disinfecting the object, the treatment chamber comprising a cleaning agent supply and a dirt discharge and the provisions for Disinfection interact with a disinfectant supply and dry ice is used as a cleaning agent. The means for applying dry ice and the object can be moved relative to one another, with the means for applying the dry ice comprising nozzles and/or mechanical application devices. One of the means for applying the dry ice is arranged on a telescoping support arm, while one of the means for applying the dry ice is movable, in particular oscillatingly movable and/or pivotable. The object can be rotatably mounted. At least one optical detector for light/dark detection to detect the shape and dimensions of the object and, if necessary, to identify the object should be provided, which interacts with a control device, the control device controlling the alignment of the means for applying the dry ice and/or the Object caused in such a way that the dry ice impinges on this according to the detected light-dark areas of the object. The control device processes the data originating from the detection and starts a treatment program. Provisions for disinfecting the object are arranged in a disinfecting section of the treatment chamber, the disinfecting section being located downstream of the cleaning section of the treatment chamber. In addition, a signal transmitter is assigned to the disinfection section of the treatment chamber, which transmits a signal to the control device after the disinfection has ended. Such a device should clean objects such as containers, packaging, costs, pallets, bundles or paloxes. The materials of the various objects can be wood, plastic, metal, steel or rubber, depending on the intended use.

the DE 20 2007 001 220 U1 relates to a dry ice blasting system for blasting an object to be cleaned using a dry ice particle/compressed air mixture, with a dry ice storage container, with a dry ice lock driven by a drive, with a compressed air storage container, with a mixing unit for producing the dry ice particle/compressed air mixture and with a mixing unit with a The hose system connecting the blasting gun, the dry ice being fed from the dry ice storage container into the dry ice lock, conveyed from there to the mixing unit and pressurized with compressed air in the mixing unit and introduced into the hose system, and the drive interacting with a reduction gear. The drive interacts with several partial reduction gears, via which the dry ice lock is driven, with at least two partial reduction gears each being connected upstream of the dry ice lock in the form of a positive-locking gear, starting from the drive in the direction of the drive acting on the dry ice lock. The whole system is arranged on a kind of trolley and can be moved. The gear reduction should move the dry ice sluice more evenly. The reduction gear is intended to increase the torque, so that even disturbances caused by local Ice formation on the dry ice lock, for example due to condensation, does not affect operation. With several gears and their translation, a high, even conveyance of the dry ice pellets to the mixing unit is to be achieved while ensuring a high torque. The upstream connection of an electrical transmission is intended to combine the advantages of the electrical transmission and the advantages of the positive-locking transmission with one another to ensure uniform delivery.

tasks

The invention is based on the object of making possible a device for cleaning and preparing movable objects used in hospitals and care homes, such as hospital beds, care beds, children's beds, mattresses, stretchers, transport chairs and bedside tables.

Furthermore, the invention is based on the object of providing a control or regulating device for such a device.

Finally, the invention is based on the object of enabling the use of dry ice for cleaning hospital beds, care beds, children's beds, mattresses, stretchers, transport chairs and bedside tables.

Solution of the task concerning the device

This object is achieved by a device for cleaning and processing mobile objects used in hospitals and nursing homes designed as treatment goods, such as hospital beds, care beds, cots, mattresses, stretchers, transport chairs and bedside tables in a stationary cleaning and processing system in which the objects in question are intermittently cleaned are arranged individually or in continuous operation in a decontamination chamber that can be opened and closed at a predetermined time and for specific objects, with the objects being sprayed under pressure from multiple sides with dry ice such as pellets or snow and then being movable from the relevant decontamination chamber to a collection point, wherein the decontamination chamber has doors that can be opened and closed in the conveying direction on the front and rear side, with side walls and/or in the ceiling area and on the opposite side walls several spray nozzle devices for the dry ice are arranged one behind the other, to which the dry ice can be fed in a time- and/or volume-determined manner and controlled or regulated under a predetermined pressure according to a predetermined program, with the device being assigned a central data memory or a central control or regulating device, in in which amounts of data are stored in the form of programs for the individual objects to be processed in the relevant decontamination chamber, with the central control or regulating device supplying the spray nozzle device with dry ice depending on the program called up and depending on the object to be processed, such as hospital beds, bedside tables or the like.

Some advantages

The method according to the invention avoids the disadvantages of the prior art, since the energy costs are lower because the objects to be disinfected no longer have to be heated. While the prior art still requires about 600 liters of water per hospital bed, this is completely eliminated in the method according to the invention, and the employees and thus the environment are also spared due to the omission of chemicals. Contaminated water and residual chemicals no longer need to be disposed of separately, so there are no costs involved. There is also less wear and tear on the components due to the otherwise necessary use of chemicals during mechanical processing. This reduces maintenance costs. Since the post-drying time for the objects to be treated is also eliminated, the number of items to be treated per unit of time can be increased.

The spray nozzle devices arranged in the respective decontamination chamber spray the items to be cleaned, for example a hospital bed, preferably from above and from the two opposite sides, making sure that there is no spray shadow and that all surfaces to be decontaminated are sprayed evenly. The empirically determined spray pressure for the dry ice can be preset, which also applies to the object-specific volume flow. Spray and angle of inclination of nozzles of the spray nozzle devices can be predetermined, as well as the spray jet characteristics, so that an object-specific impact pressure and impact angle results for the respective dry ice jet. This also applies to the distance between the respective spray nozzles and the material to be treated, for example a hospital bed.

The decontamination chamber in which the items to be treated, for example a hospital bed, are located is preferably made of chromium-nickel steel or other alternative materials that have the necessary properties that are required in hospitals and nursing homes point. The panels on the walls are also preferably made of stainless steel or chrome-nickel steel. As far as the dry ice itself is concerned, it is advantageous to choose a grain size that achieves the desired decontamination effect and cleaning at the pressure to be set in each case, measured at the spray nozzles. The entire process flow can take place automatically. Several such decontamination chambers can be arranged next to and/or behind one another, which are loaded with objects by a central computer, for example according to stored programs. Usually, the spray nozzle devices for the dry ice will be operated at a pressure of 4 to 6 bar. Of course, other pressures are also possible.

Such a device can be accommodated with relatively simple structural means in relatively narrow spaces, so that even older hospitals can be equipped with such stationary decontamination devices that they need to carry out the method according to claim 1 or one of the following claims. Basically, in the simplest embodiment, a room is sufficient that has doors that can be opened and closed at the front and rear—seen in the direction of transport—so that the process can be carried out after the items to be treated, for example a hospital bed, have been brought in. In the simplest way, this device has a spray nozzle arrangement in the ceiling area and in both diametrically opposite side walls. Such spray nozzles for dry ice will probably only be used in the floor area in special cases.

In this way it is also possible to store corresponding empirical data in the data memory for different objects to be decontaminated, for example for the spray pressure and the angle of incidence of the spray jets. If required, the individual jets of dry ice can also be controlled or regulated in terms of spray angle and/or volume flow and/or spray pressure at the outlet opening of the nozzle.

More inventive designs

Further inventive developments are described in claims 2 to 10.

A further advantageous embodiment is described in claim 2, which is characterized in that the device is assigned a rail system or a motor-driven conveying device which feeds the relevant objects intermittently or in a continuous flow process to one or more decontamination chambers.

The device according to claim 3 is characterized in that some or more or all of the nozzles of the nozzle system are space-articulated, possibly remote-controlled, adjustable in relation to the object to be decontaminated with regard to their radiated jet and/or are arranged such that they can be moved in a lifting manner in terms of their distance from the object.

According to patent claim 4, the device is characterized in that the spray nozzle devices are assigned to the respective side wall of the decontamination chamber so that they can be exchanged individually in three-dimensional joints.

Patent claim 5 is characterized in that the spray nozzle devices can be supplied with dry ice of different granulation/size.

Patent claim 6 is characterized in that data quantities for spray pressure, grain size of the dry ice and spray angle of the nozzles are stored in the data memory of the control or regulating device

Claim 7 describes a device in which the dry ice can be supplied from one or more collection containers that can be filled or from a dry ice production device of the stationary cleaning and processing system and its decontamination chamber. The respectively provided storage container for the dry ice can be filled by a mobile vehicle with dry ice of a predetermined grain size.

Patent claim 8 is characterized in that the objects to be decontaminated are sprayed with dry ice in a pressure- and volume-specific manner, with a spray pressure of 5 bar and dry ice with a grain size of 2 mm to 5 mm or a dry ice snow of 1 to 100 µm, preferably 1 to 60 µm, can be used.

In the procedure according to patent claim 9, any quantities of dry ice residues removed from the objects are removed from the decontamination chamber through openings in the floor.

According to claim 10, the objects can be fed to the relevant decontamination chamber by a motor-driven conveyor. The conveyor can be driven continuously or intermittently under program control by an electric motor.

Solution to the problem relating to the control or regulation device

This object is achieved for a device for processing and / or disinfecting objects used in hospitals or nursing homes for receiving, moving or caring for patients, such as hospital beds, stretchers, bedside tables or the like, with a decontamination chamber that can be opened or closed, in which the the objects in question are to be prepared and cleaned or disinfected, with the decontamination chamber in question being assigned a central computer with a data memory, with motor drives for opening and closing the doors assigned to the decontamination chamber in question, with the data memory containing data quantities for the spray pressure of the spray nozzle devices, residence times of the objects in of the decontamination chamber and/or volume flows for the dry ice, which are assigned to the spray nozzle devices which spray the object in question with dry ice from at least three sides.

Some advantages

Such a control or regulating device enables a decontamination system to be operated particularly economically, with the objects to be decontaminated being cleaned and decontaminated particularly gently.

More inventive designs

Further inventive developments are described in patent claims 12 and 13.

Patent claim 12 is characterized in that the central control or regulating device controls or regulates the movements of the objects to be cleaned and/or disinfected in the relevant decontamination chamber.

Claim 13 is characterized in that at least one motor-driven conveyor is assigned, the motor drive of which is controlled or regulated by the central control or regulating device in order to feed the objects continuously or intermittently to the relevant decontamination chamber.

Solution of the task regarding the use

This object is achieved according to patent claim 14 in that in a decontamination chamber in which the objects to be cleaned and processed are sprayed under pressure with dry ice such as pellets or snow in a controlled or regulated manner and can then be moved out of the relevant decontamination chamber to a collection point.

• 1 Eine Einrichtung gemäß der Erfindung in Stirnansicht bei geöffneter Tür, teils im Schnitt;
• 2 einen Teillängsschnitt nach der Linie II - II der 1 und
• 3 einen vereinfachten schematischen Schaltplan für die aus den 1 und 2 ersichtliche Einrichtung, automatisch und manuell zu betreiben.

In the drawing, the invention is illustrated - partly schematically - using an exemplary embodiment. Show it:

• 1 A device according to the invention in front view with the door open, partly in section;
• 2 a partial longitudinal section along the line II - II of 1 and
• 3 a simplified schematic circuit diagram for the from the 1 and 2 obvious facility to operate automatically and manually.

Reference number 1 designates a decontamination chamber, which has an openable and closable door 3 on the so-called unclean side 2, on which the material to be treated is to be moved into the decontamination chamber 1, and on the clean side 4, on which the material to be treated is to be removed from the decontamination chamber 1 is to be moved out, also has an openable and closable door 5. The doors 3 and 5 can be moved in the open and closed position by electric motors (not shown) which can be operated remotely and/or manually.

In the illustrated embodiment, for example, an item to be treated in the form of a hospital bed 6 has been moved into the decontamination chamber 1 in direction G, while the door 5 is closed. Then the door 3 is also motor-closed behind the item 6 to be treated. Of course, it is also possible to open and close the doors 3 and 5 manually and to disinfect and/or clean other items to be treated, for example bedside tables, care beds or the like, in the decontamination chamber 1 .

Like in particular 1 As can be seen, numerous spray nozzle devices 10, 11, 12 are arranged in the ceiling area 7 and on the diametrically opposite side walls 8 and 9 of the decontamination chamber 1. In the decontamination chamber 1 are such spray nozzle devices 10, 11, 12 - as from 1 can be seen - both with equal distance next to each other, as well as in the out 1 not visible conveying direction G ( 2 ) arranged in several rows in a straight line with equal distances from one another and/or offset from one another. However, it is also possible to use only one row of spray nozzle devices 10, 11, 12 - as shown in FIG 1 is evident - to be provided.

The spray nozzle devices 10, 11, 12 may have nozzle heads in direction A - B and E - F and C - D are pivotable and, if necessary, can be lifted in the directions T - V or X - Y.

The individual spray nozzle devices 10, 11, 12 are connected to one another for dry ice by a collecting line 13 and can each be subjected to the same or different volume flows with dry ice, such as pellets and/or snow, in a controlled or regulated manner. The pellets can for example have a diameter of 0.5 mm to 5 mm, preferably 3 mm. Snowflakes can be dimensioned, for example, from 1 to 100 μm or from 8 to 60 μm.

With the reference number 14 ( 1 ) is a shut-off device and 15 designates a pressure measuring device, by means of which the pressure in the collecting line 13 can be measured and monitored. A monitoring device for monitoring the CO ₂ content in the decontamination chamber 1 is arranged at 41, which is connected to the interior of the decontamination chamber 1 via a line 42 in order to measure the respective CO ₂ content and, if necessary, when a critical value is reached give an acoustic and/or visual signal.

The reference numeral 16 designates a fillable collection container for dry ice, while at 17 a closable viewing opening or a closable cover is arranged. The collection container 16 can also be designed as a dry ice production device that produces the dry ice on the spot.

A delivery line is denoted by 18, which is connected to the interior of the collecting container 16 or to a dry ice-making device in a dry-ice-conducting manner.

A pressure equalization vessel 44 is connected to the collection container 16 via a compressed air line 43 and is connected via a compressed air line 45 to a compressor 21 which is driven by a controllable or adjustable electric motor 19 via a clutch 20 .

The compressed air compressor 21 conveys compressed air into the collecting container 16 and conveys dry ice in the form of pellets or snow from this via the conveying line 18 into the collecting line 13 and thus to the individual spray nozzle devices 10, 11, 12 under a predeterminable compressed air pressure of, for example, 5 to 18 bar. preferably under a compressed air pressure of 6 to 12 bar, the spray pressure at the spray nozzle devices 10, 11, 12 being 2 to 10 bar, preferably 3 to 8 bar, optionally variably adjustable or controllable and/or adjustable according to predetermined programs.

The collection container 16 can be filled with dry ice intermittently or continuously by a transportable conveyor device, for example by a corresponding special vehicle, for example with the interposition of an electrically driven, controllable or adjustable electric motor 22 that drives a compressor 23 that is connected to the motor 22 is drivingly connected via a clutch 24 . The compressor 23 is connected via a line 25 to the interior of the collecting container 16 in a dry ice-conducting manner, for example via a detachable coupling (not shown). If the collection container 16 is designed as a dry ice production device, the motor 22, the clutch 24 and the compressor 23 as well as the connection line 25 are omitted.

The reference numeral 26 designates a central control or regulating device, in whose data memory empirical data, including for the pressure with which the spray nozzle devices 10, 11, 12 spray dry ice onto the material to be treated, for example onto a sickbed 27, as well as the object-specific volume flows of dry ice, which are supplied to the spray nozzle devices 10, 11, 12, and optionally the spray angles with which the items to be treated are sprayed, are stored.

The spray nozzle devices 10, 11, 12 can be articulated in three dimensions or at least in two planes, for example movable up and down and horizontally, i.e. pivoted, in order to thereby adjust the angle of incidence of their spray jets of dry ice onto the material to be treated, for example onto a hospital bed 27, a bedside table, a care bed or the like. Corresponding data with which the dry ice spray jets impinge on the material to be treated, for example a hospital bed 27, can also be stored with regard to the distance that the nozzle outlet openings have from the surface of the material to be treated to be decontaminated, in order to point the spray nozzle devices 10, 11, 12 in the direction To control X - Y or T - V or to set it by hand and move it, for example to pan.

The central control or regulating device 26 is connected to the individual spray nozzle devices 10, 11, 12 via lines 28, 29, 30 and via individual lines extending from the collecting line 13, as is the central control or regulating device 26 via lines 31, 32, 33 , 34, 35, 36, 37 is connected to suitable conveyance and power lines to monitor, control or regulate the various devices.

A central monitoring device 39 , for example a monitor, is connected in a data-conducting manner to the central control or regulating device 26 via a line 38 and receives its energy via a power line 40 . In this way, the device can be operated automatically. If necessary, control and regulation signals can also be transmitted via telecommunications lines, for example via radio links.

In contrast to the embodiment shown, several such decontamination chambers 1 can be arranged next to and/or behind one another, with all processes such as opening and closing the doors 3, 5, moving in and out the objects to be decontaminated and cleaned 6, 27 can be monitored and controlled in or out of the decontamination chamber 1, the supply of dry ice from the collection container 16 and its filling by the motor-driven compressor 23. If necessary, a programmable logic controller (PLC) can also be used here.

The device enables a high throughput of objects 6, 27 to be decontaminated, and that largely unmanned, since a single person from the monitoring device 39 can switch the entire process on and off and monitor it, for example on a monitor assigned to the monitoring device 39.

Swivel direction of the nozzles in the direction AB and adjustment of the nozzles in the direction X - Y and the direction of travel of the material to be treated 6, 27 are denoted by G. E, F, C and D designate pivoting directions of the spray nozzle devices 10, 11, 12.

The features described in the patent claims and in the description and evident from the drawing can be essential for the realization of the invention both individually and in any combination.

bibliography

• DE 87 11 008 U1
• DE 10 2006 047 742 A1
• DE 20 2007 001 220 U1
• DE 10 2010 039 752 A1
• DE 10 2011 008 139 A1
• DE 20 2015 002 524 U1
• DE 10 2016 212 602 A1

Claims (14)

Device for cleaning and processing mobile objects (6, 27) used in hospitals and nursing homes and designed as treatment goods, such as hospital beds, care beds, children's beds, mattresses, stretchers, transport chairs and bedside tables in a stationary cleaning and processing plant, in which the objects in question are intermittently individually cleaned or are arranged in continuous operation in a decontamination chamber (1) that can be opened and closed at a predetermined time and for specific objects, with the objects (6, 27) there being sprayed under pressure from multiple sides with dry ice such as pellets or snow and then out of the relevant decontamination chamber (1) can be moved to a collection point, the decontamination chamber (1) having doors (3, 5) that can be opened and closed in the conveying direction (G) at the front and rear, with the ceiling area (7) and the opposite side walls (8, 9) next to n and/or several spray nozzle devices (10, 11, 12) for the dry ice are arranged one after the other, to which the dry ice can be supplied at a specific time and/or volume and under a specified pressure according to a specified program, with the device having a central assigned to a data memory or a central control or regulation device (26), in which amounts of data are stored in the form of programs for the individual objects (6, 27) to be processed in the relevant decontamination chamber (1), the central control or regulation device (26 ) supplies the spray nozzle device (10, 11, 12) with dry ice, depending on the program called up and depending on the object (6, 27) to be processed, such as hospital beds, bedside tables or the like. setup after claim 1 , characterized in that the device is assigned a rail system or a motor-driven conveying device which feeds the relevant objects (6, 27) intermittently or in a continuous flow process to one or more decontamination chambers (1). setup after claim 1 , characterized in that some or more or all of the nozzles of the nozzle system are spatially articulated, possibly remotely controlled, adjustable in relation to the object to be decontaminated with regard to their radiated jet and/or are arranged such that they can be lifted in terms of their distance from the object. setup after claim 1 , characterized in that the spray nozzle devices gene (10, 11, 12) are assigned to the respective side wall (8, 9) of the decontamination chamber (1) so that they can be exchanged individually in space joints. setup after claim 1 or one of the following claims, characterized in that the spray nozzle devices (10, 11, 12) can be supplied with dry ice of different granulation/size. setup after claim 1 or one of the following claims, characterized in that data quantities for spray pressure, particle size of the dry ice and spraying angle of the nozzles are stored in the data memory of the control or regulating device (26). setup after claim 1 or one of the following claims, characterized in that the dry ice can be fed from one or more fillable collection containers (16) or from a dry ice production device to the stationary cleaning and processing system and its decontamination chamber (1). setup after claim 1 or one of the following claims, characterized in that the objects (6, 27) to be decontaminated are sprayed with dry ice in a pressure- and volume-specific manner, with a spray pressure of 5 bar and dry ice with a grain size of 2 mm to 5 mm or a dry ice snow of 1 to 100 µm, preferably 1 to 60 µm. setup after claim 1 or one of the following claims, characterized in that any quantities of dry ice residues removed from the objects (6, 27) can be removed from the decontamination chamber (1) through openings located in the floor. setup after claim 1 or one of the following claims, characterized in that the objects (6, 27) can be fed to the relevant decontamination chamber (1) by a motor-driven conveyor. Control or regulating device for a device claim 1 or one of the subsequent claims, for preparing and/or disinfecting objects used in hospitals or nursing homes for receiving, moving or caring for patients, such as hospital beds, stretchers, bedside tables or the like, with a decontamination chamber (1) that can be opened or closed, in which the objects (6, 27) in question are to be processed and cleaned or disinfected, characterized in that the decontamination chamber (1) in question is assigned a central computer with data memory, with motorized drives for the doors (3 , 5) for opening and closing, the data memory containing amounts of data for spray pressure of the spray nozzle devices (10, 11, 12), dwell times of the objects in the decontamination chamber (1) and/or volume flows for the dry ice, which the spray nozzle devices (10, 11, 12) are associated with at least three pages de Spray the object (6, 27) in question with dry ice. Control or regulating device after claim 11 , characterized in that the central control or regulating device (26) controls or regulates the movements of the objects (6, 27) to be cleaned and/or disinfected in the relevant decontamination chamber (1). Control or regulating device after claim 11 or 12 , characterized in that at least one motor-driven conveyor is assigned, the motor drive of which is controlled or regulated by the central control or regulating device (26) in order to convey the objects (6, 27) continuously or intermittently according to the relevant decontamination chamber (1) to supply Use of dry ice for cleaning hospital beds, care beds, children's beds, mattresses, stretchers, transport chairs and bedside tables in a decontamination chamber (1) in which the objects to be cleaned and processed (6, 27) are controlled or regulated with dry ice such as pellets or snow under pressure are sprayed and then from the relevant decontamination chamber (1) can be moved to a collection point.

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