Method for decontaminating surfaces of a protected clean room, protected clean room and corresponding use

EP4746927A1Pending Publication Date: 2026-05-27TT INNOVATION AG

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
TT INNOVATION AG
Filing Date
2024-07-17
Publication Date
2026-05-27

AI Technical Summary

Technical Problem

Existing decontamination methods for protected clean rooms face challenges in evenly distributing decontamination agents to all areas, particularly those covered by objects or surfaces, and struggle with penetrating encapsulating films formed by movable elements, leading to inadequate decontamination of difficult-to-reach areas.

Method used

A magnetically levitable transport unit coupled to a drive surface, using a stator arrangement with changeable magnetic fields to position and move the transport unit, allowing for controlled movement and decontamination agent distribution to previously inaccessible areas, including tilting and lifting movements to optimize decontamination coverage.

Benefits of technology

This approach ensures thorough decontamination of all areas within the protected clean room, including those previously difficult to access, while minimizing space usage and preventing contamination, thereby enhancing the efficiency and effectiveness of the decontamination process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates, in general, to a method for decontaminating surfaces (6) of a protected clean room (1), in particular an isolator (2) and / or a barrier system for restricted access. The method comprises at least one method step, in which a decontamination agent (3) is introduced into the protected clean room (1) and / or acts in the protected clean room (1), and is furthermore characterised in that at least one magnetically levitatable conveying unit (4), which is magnetically couplable or coupled to a drive surface (7), is transferred into at least one decontamination position (5) and / or held in a decontamination position (5) before or during the at least one method step. The invention also relates to a protected clean room (1) and a corresponding use.
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Description

[0001] PC 240729 C July 17, 2024 Method for decontaminating surfaces of a protected cleanroom, protected cleanroom, and corresponding use The invention relates to a method for decontaminating surfaces of a protected cleanroom, wherein the method comprises at least one method step in which a decontaminant is introduced into the protected cleanroom and / or acts in the protected cleanroom. Protected cleanrooms can, in particular, be isolators and / or barrier systems for restricted access (RABS, open / closed RABS). Protected cleanrooms are used, in particular, in the pharmaceutical industry and in medical technology for filling medications or for processing medical products. Protected cleanrooms are subject to strict hygiene guidelines, the fulfillment of which requires certain measures.The protected cleanroom and all exposed surfaces therein must be decontaminated at regular intervals, for example, after the protected cleanroom has been opened or shut down. Hydrogen peroxide or ethylene oxide is used as a decontaminant in the protected cleanroom. The decontaminant is introduced into the protected cleanroom in gaseous form and evenly distributed throughout the working chamber of the protected cleanroom so that all exposed surfaces come into contact with / are wetted by the decontaminant. Gaseous introduction of the decontaminant can also mean introduction by means of steam and / or aerosols. For the purposes of this description, a mixture of a gas phase and suspended particles, such as particles or liquid droplets, can be considered a gas.A decontaminant can also be radiation, such as UV light. A particular problem with the methods known to date for decontaminating surfaces in a protected cleanroom is the even distribution of the decontaminant across all surfaces. Areas covered by other objects and / or surfaces in the protected cleanroom are particularly problematic, as the decontaminant cannot reach these hard-to-reach areas at all or only with great effort. Furthermore, contamination, e.g., due to abrasion of moving elements in the protected cleanroom, can form an encapsulating film through which the decontaminant cannot penetrate or can only penetrate inadequately.The invention further relates to a protected cleanroom, in particular an isolator and / or a barrier system for restricted access, comprising at least one magnetically levitable transport unit and at least one drive surface associated therewith. The magnetically levitable transport unit and its associated drive surface form a drive unit whose functionality is achieved via two separate surfaces in the protected cleanroom, with these surfaces overlapping at least temporarily. During operation, a controllable magnetic field passes through the drive surface, which can be generated, for example, by position-adjustable permanent magnets and / or by selectively energized coil arrangements in order to be able to specifically position and / or move the transport unit responsive to magnetic fields. PC 240729 C 3 / 47 17.July 2024 The object of the invention is to improve and / or further develop the decontamination of surfaces in a protected cleanroom, in particular to enable the use of magnetically levitable transport units in the protected cleanroom. The application is based, for example, on commercially available systems, see, for example, and the commercial providers mentioned there, in particular Beckhoff https: / / www.beckhoff.com / de-de / produkte / motion / xplanar- planarmotorantriebssystem / The various functions (levitate, coupling to the drive surface, tilting, etc.) are shown there. Comparable levitation systems are also offered by Bosch Rexroth, https: / / apps.boschrexroth.com / microsites / ctrlx-automation / de / portfolio / ctrlx-flow / . Levitable transport units are therefore known to those skilled in the art. To achieve the stated object, the features of claim 1 are provided according to the invention.In particular, to achieve the stated object, in a method of the type described at the outset, it is proposed according to the invention that at least one magnetically levitable transport unit, which is or can be magnetically coupled to a drive surface, is transferred and / or held in at least one decontamination position before or during the at least one method step. Thus, the decontamination agent can advantageously be introduced into the protected clean room and / or act in the protected clean room in a temporal correlation while the magnetically levitable transport unit is transferred and / or held in the decontamination position PC 240729 C 4 / 47 July 17, 2024. The decontamination agent is / are introduced oract(s) therein: hydrogen peroxide and / or ethylene oxide and / or radiation, in particular wave radiation, for example UV light radiation, and / or particle radiation, for example electron radiation. Magnetic coupling of the transport unit to the stator arrangement is understood to mean any magnetic coupling known to the person skilled in the art. The stator arrangement can be designed to generate a controlled, changeable magnetic field that levitates and / or moves the transport unit. The stator arrangement thus acts as a levitation generator. A magnetic coupling can thus be realized by an electromagnetic coupling of the transport unit to the stator arrangement. The stator arrangement can comprise at least one electromagnet. The transport unit can, for example, have at least one permanent magnet or be designed to be magnetically active and / or responsive in some other way.Alternatively or additionally, both the stator arrangement and the transport unit can each comprise at least one permanent magnet. In this case, a movement of the transport unit can be initiated, terminated and / or controlled, in particular, by changing the magnetic field generated by the stator arrangement. The stator arrangement can thus comprise, in particular, movable permanent magnets that are and / or can be operatively connected to the transport unit. The movable permanent magnets can, for example, be motor-driven. By controlled movement of the permanent magnets, a controlled, variable magnetic field can be generated, which can be used to drive a movement of the transport unit. Furthermore, it can be provided, for example, that the stator arrangement is designed with at least one electropermanent magnet.The magnetic coupling serves, in particular, to realize a relative movement, a positioning, and / or an orientation of the transport unit relative to the stator arrangement in a controlled manner. The at least one method step is, in particular, a first method step. A further advantage of the method according to the invention can be that a change in location can be realized by transferring the magnetically levitable transport unit into the decontamination position, and / or a change in the distance of the magnetically levitable transport unit from the drive surface and / or other surfaces in the protected clean room can be realized by holding the magnetically levitable transport unit in the decontamination position. In this way, for example, sections or regions of the drive surface and / or other surfaces can be released for decontamination one after the other.Thus, the method according to the invention can advantageously prevent sections or areas and surfaces in the protected clean room from remaining covered. Thus, the decontamination of surfaces of a protected clean room is improved by the method according to the invention. Furthermore, electrically levitable transport units can be used in the protected clean room thanks to the improved and / or further developed decontamination options. These advantages are particularly relevant for isolators and / or barrier systems for restricted PC 240729 C 6 / 47 July 17, 2024 access, in which the method can preferably be carried out and / or implemented. The drive surface can, for example, be arranged horizontally and / or vertically and / or obliquely in the protected clean room, wherein the method according to the invention can be carried out and / or implemented for at least the described arrangements of the drive surface.The decontamination position can, in particular, be part of a drive unit of a transport device, in particular as described and / or claimed herein. This can be advantageous in that the transfer of the at least one magnetically levitable transport unit into the decontamination position takes place without any loss of time and without any structural measures that would take up valuable space in the protected cleanroom. This configuration can be advantageous if the at least one magnetically levitable transport unit is transferred to the decontamination position, in particular during the first method step, and / or is held in the decontamination position. Alternatively or additionally, the decontamination position can be a position in the protected cleanroom formed by surfaces and / or functional units formed in the protected cleanroom.These surfaces and / or functional units are in particular not designed as part of the transport device or drive unit described and / or claimed herein. This configuration can be advantageous if the at least one magnetically levitable transport unit is transferred to the decontamination position, in particular before the first method step, and is held at the decontamination position, in particular during the first method step. PC 240729 C 7 / 47 July 17, 2024 The at least one magnetically levitable transport unit can be transferred to several decontamination positions. Thus, the at least one magnetically levitable transport unit can successively release partial areas of the drive surfaces by changing location, for example by moving along the drive surface, in particular during the first method step.Thus, the drive surfaces, as well as other surfaces of the protected clean room, can be reached by the decontamination agent in order to be able to be decontaminated. In an advantageous embodiment, it can be provided that the at least one magnetically levitable transport unit performs a relative movement to the at least one surface located in the protected clean room, in particular the drive surface, during transfer to the decontamination position. Thus, the at least one magnetically levitable transport unit can perform a change of location in the protected clean room, so that at least the at least one surface located in the protected clean room is exposed during the introduction of the decontamination agent and / or during its action and is thus not covered by the at least one magnetically levitable transport unit.A surface can, for example, be the aforementioned drive surface, a housing surface of the protected clean room, a surface of a functional unit, and / or a surface of a decontamination unit, in particular as described and / or claimed herein. Such a surface can, for example, be flat or curved in one or two directions. Alternatively or additionally, the magnetically levitable transport unit can perform a relative movement to the surface during transfer to the decontamination position. In particular, it can be provided that the at least one magnetically levitable transport unit performs a lifting and / or tilting movement at the decontamination position.Thus, the magnetically levitable transport unit can simultaneously change the distance to the decontamination position and to a surface in the protected clean room, allowing a larger surface area to be supplied with decontamination agent per unit time. It can therefore be said that this embodiment can particularly effectively reduce and / or change shadowing. In an advantageous embodiment, it can be provided that the at least one magnetically levitable transport unit is jacked up at the decontamination position. Thus, by jacking up the at least one magnetically levitable transport unit, a change in the distance between the at least one magnetically levitable transport unit and the surface, in particular the drive surface, can be realized.Thus, in particular, the volume described and / or claimed herein between the magnetically levitable transport unit and the drive surface can advantageously be increased. The term "volume" refers, for example, to the space located between a drive surface and the underside of a levitable or levitating transport unit magnetically coupled to this drive surface. In an advantageous embodiment, it can be provided that at least one magnetically levitable transport unit levitates during the at least one method step. This embodiment is particularly advantageous when the at least one magnetically levitable transport unit is held in the decontamination position.By levitating the at least one magnetically levitable transport unit, the distance change between the magnetically levitable transport unit and the drive surface can be realized such that the decontamination agent can reach the drive surface, which can be covered by the magnetically levitable transport unit, during the first method step. Alternatively or additionally, it can be provided that the at least one magnetically levitable transport unit moves in at least one degree of freedom. This embodiment is particularly advantageous if the at least one magnetically levitable transport unit is transferred into the decontamination position during the first method step, in particular if it levitates after the transfer and during the first method step.Preferably, it is provided that the at least one magnetically levitable transport unit moves in at least two degrees of freedom. Thus, the magnetically levitable transport unit can move not only linearly, but also in at least two degrees of freedom, so that the transfer or a change of location can be implemented variably in the protected clean room. With this embodiment, a method for decontaminating surfaces can be implemented, in particular, even when more than one magnetically levitable transport unit is located in the protected clean room. Alternatively or additionally, it can be provided that the magnetically levitable transport unit moves around a point of the transport unit. A point is meant, in particular, a point that is located in the volume formed by the transport unit PC 240729 C 10 / 47 July 17, 2024.Thus, a tilting movement, in particular as described and / or claimed herein, can advantageously be carried out by the transport unit. This also allows the previously described relative movement to at least one surface located in the protected clean room to be carried out. This embodiment is further preferred when the magnetically levitable transport unit is held in the decontamination position. In particular, it can be provided that the magnetically levitable transport unit moves about its center point, which can be particularly advantageous when the magnetically levitable transport unit rotates. By moving the magnetically levitable transport unit about its center point, in particular during a rotational movement, the decontamination agent can, as can advantageously be provided, be distributed at least in a supporting manner, in particular while it is held in the decontamination position in the protected clean room.In an advantageous embodiment, it can be provided that the at least one magnetically levitable transport unit distributes the decontamination agent during the transfer in the protected clean room, at least in a supporting manner. This allows the at least one magnetically levitable transport unit to distribute the decontamination agent to particularly hard-to-reach locations in the protected clean room. In particular, the magnetically levitable transport unit can at least supportively supply the volume between the transport unit and the drive surface, as described and / or required below, with decontamination agent. Alternatively or additionally, it can be provided that the PC 240729 C 11 / 47 17.July 2024, at least one magnetically levitable transport unit distributes the decontamination agent in the protected clean room, at least in a supporting manner, while the magnetically levitable transport unit is held in the decontamination position. This embodiment is particularly advantageous when the magnetically levitable transport unit rotates in the decontamination position, so that surfaces laterally spaced from the magnetically levitable transport unit can also be supplied with decontamination agent. In an advantageous embodiment, it can be provided that the method comprises at least a second method step, wherein the at least second method step comprises a ventilation phase. The second method step preferably follows the first method step in time.Thus, the protected clean room, in particular the at least one magnetically levitable transport unit, can be ventilated in order to remove any remaining decontamination agent from the surfaces. This can advantageously prevent damage to components or subsequently introduced products in the protected clean room, in particular surfaces of the at least one magnetically levitable transport unit. Alternatively or additionally, the magnetically levitable transport unit performs a relative movement to a surface, for example the surface described and / or claimed herein, during the second method step. The ventilation phase can advantageously remove any remaining decontamination agent that could not be removed from the working chamber of the protected clean room. This can thus ensure that during a work process orduring operation in the protected clean room, no harmful decontamination agent remains in the protected clean room. PC 240729 C 12 / 47 July 17, 2024 The relative movement can in particular be a movement and / or a lifting and / or tilting movement of the magnetically levitable transport unit, whereby a variety of movement options can be realized by the magnetically levitable transport unit. Thus, a magnetically levitable transport unit can be effectively moved, in particular during the ventilation phase, in order to remove decontamination agent. In an advantageous embodiment, it can be provided that the magnetically levitable transport unit is transferred to a ventilation position during the second method step. At the ventilation position, the magnetically levitable transport unit can be freed of decontamination agent.Thus, alternatively or additionally, it can be provided that the magnetically levitable transport unit is exposed to a preferably concentrated ventilation flow. This can be realized, for example, at the ventilation position, as described above. The concentrated ventilation flow can ventilate the at least one magnetically levitable transport unit particularly effectively and with little time expenditure in order to remove the decontamination agent, in particular from the protected clean room. Alternatively or additionally, the magnetically levitable transport unit can be exposed to a concentrable ventilation flow. Thus, ventilation of the magnetically levitable transport unit can only take place, for example, when the magnetically levitable transport unit is in the ventilation position, for example. In this way, resource savings, in particular energy savings, can be advantageously achieved.In an advantageous embodiment, it can be provided that the magnetically levitable transport unit moves during the process at a decontamination speed that is, on average, slower and / or faster than an operating speed that the magnetically levitable transport unit has during operation. Operation can mean, for example, a process that is carried out before or after a process for decontaminating surfaces of a protected cleanroom. This can be, for example, a filling and / or assembly process in the protected cleanroom. Different processes can require the same or different operating speeds of the magnetically levitable transport units.The advantage of a faster and / or slower decontamination speed can be that the magnetically levitable transport unit can either (if the transport unit moves more slowly on average) distribute the decontamination agent evenly over the drive surface at least partially, or (if the transport unit moves more quickly on average over time) cover the drive surface only briefly on average over time, so that the decontamination agent introduced into the protected clean room can be evenly distributed over the drive surface. A slow movement can also ensure that surfaces that are only exposed during certain sections of the movement are in contact with the decontamination agent for a sufficiently long time. In an advantageous embodiment, it can be provided that the decontamination speed is equal to the operating speed or an operating speed.Thus, the magnetically levitable transport unit can move at a decontamination speed during the first process step, in particular, which is equal to or an operating speed of the magnetically levitable transport unit. Thus, a decontamination speed can be adapted to an operating speed of the magnetically levitable transport unit. This is particularly advantageous when the magnetically levitable transport unit moves at a high operating speed during operation, so that the decontamination speed is also high during the first process step, in particular. This allows at least partial distribution of the decontamination agent in the protected clean room, and in particular on the drive surface, to be achieved.In an advantageous embodiment, it can be provided that the decontamination duration is dimensioned such that the local residence time of the magnetically levitable transport unit differs in time from the exposure time of the decontamination agent on the surface. This can advantageously ensure that the decontamination agent has sufficient time to act on the surface, in particular on the drive surface. This is particularly possible if, as can be provided in particular, the local residence time of the magnetically levitable transport unit is shorter than the exposure time of the decontamination agent on the surface. In an advantageous embodiment, it can be provided that the decontamination position is designed as part of a decontamination unit in which the magnetically levitable transport unit is decontaminated with the aid of the decontamination agent as an alternative or in addition to decontamination.Thus, the magnetically levitable transport unit can advantageously be decontaminated in a decontamination unit. The decontamination of the magnetically levitable transport unit in the decontamination unit can take place in addition to or as an alternative to the decontamination of the protected clean room. Thus, the magnetically levitable transport unit can be decontaminated particularly efficiently, while simultaneously keeping drive surfaces in the protected clean room free. In particular, it can be provided that the decontamination of the magnetically levitable transport unit in the decontamination unit is carried out by applying a decontaminant, in particular the one already mentioned. Thus, the magnetically levitable transport unit and the protected clean room can be decontaminated using the same decontaminant, which can be particularly economically advantageous for a user.The decontamination agent can be provided, for example, in gaseous form, in particular by means of aerosols, hydrogen peroxide and / or peracetic acid and / or ethylene oxide. Alternatively or additionally, the magnetically levitable transport unit can advantageously be decontaminated by radiation at the decontamination unit. Preferably, the radiation is implemented by UV light radiation. Alternatively or additionally, pulsed light radiation and / or electron radiation can be provided, which is used in the decontamination unit to decontaminate the magnetically levitable transport unit. These decontamination options also allow the magnetically levitable transport unit to be decontaminated alternatively or in addition to PC 240729 C 16 / 47 17.July 2024 Decontamination of the protected clean room, so that a user has a variety of options available to decontaminate the at least one magnetically levitable transport unit. In an advantageous embodiment, it can be provided that at least one magnetically levitable transport unit, in particular the aforementioned transport unit, with a drive surface, for example the aforementioned drive surface, forms a drive unit of a transport device, wherein a part of the drive unit remains outside the protected clean room, in particular during the at least one method step, and is subsequently introduced in a preferably decontaminated state. Thus, it can preferably be provided that the magnetically levitable transport unit remains outside the protected clean room, in particular in a lock.The magnetically levitable transport unit can be decontaminated, in particular in a lock, in order to subsequently be introduced into the protected clean room in a decontaminated state during the process. The transport device is then formed from at least one magnetically levitable transport unit and a drive surface, which is preferably formed by a stator arrangement of the protected clean room, which is preferably located outside the protected clean room. A particularly advantageous feature of the embodiment can be that the protected clean room can be decontaminated separately from the at least one magnetically levitable transport unit and / or from the stator arrangement, whereby it can advantageously be achieved that difficult-to-access locations, in particular the drive surface of the magnetically levitable transport unit, can be reached by the decontamination agent.In an advantageous embodiment, it can be provided that the at least one magnetically levitable transport unit is packaged in a packaging and is introduced into the protected clean room and unpacked. This is particularly advantageous if the magnetically levitable transport unit is to be introduced into the protected clean room in a decontaminated state. The introduction can preferably take place through a receptacle as described and / or claimed below. Alternatively or additionally, it can be provided that the surface and at least one outer side of the packaging are decontaminated. This embodiment preferably takes place after the packaged transport unit has been introduced into the protected clean room. The surface provided is in particular the drive surface or a drive surface described herein and / or an inner surface of the protected clean room that is not used or usable as a drive surface.An advantage of this embodiment is that a different decontamination agent can be used to decontaminate the magnetically levitable transport unit than for decontamination of the protected cleanroom, particularly in a method as described herein. Thus, an already decontaminated, magnetically levitable transport unit can be introduced into the protected cleanroom and unpacked. In an advantageous embodiment, it can be provided that the at least one magnetically levitable transport unit is held in the decontamination position during the first method step and is then transferred to the drive surface.For example, it can be provided that the magnetically levitable transport unit is held in its packaging in its decontamination position and is only advantageously transferred to the drive surface after decontaminating at least one outer side of the packaging and the drive surface. For example, it can be provided that the magnetically levitable transport unit is arranged before or during the first method step, for example, in a jacked-up position, as described and / or claimed herein, and is only transferred to the drive surface after the first method step. This transfer can be realized, for example, by a handling system known to those skilled in the art or by gloved intervention, i.e. manually.The transfer of the magnetically levitable transport unit can be provided, in particular, in a method step following the first method step, in particular the second method step described herein. For example, the magnetically levitable transport unit can be transferred during and / or after transfer to the drive surface to a decontamination position, for example, in a decontamination unit described herein, and / or to a ventilation position, in particular, one as described herein. In an advantageous embodiment, it can be provided that a volume located between a magnetically levitable transport unit, for example, the one already mentioned, and / or a drive surface associated with it, is decontamination-free by a preferably recurring and / or transversely aligned movement of the magnetically levitable transport unit.July 2024 levitable transport unit is changed during at least one method step. It can be advantageous, with a recurring movement of the magnetically levitable transport unit aligned with the drive surface, for the volume to be variable over time, so that during this embodiment, the decontamination agent can be evenly distributed at least to the drive surface associated with the magnetically levitable transport unit, while the magnetically levitable transport unit is held on the drive surface. The volume can, for example, be open in the main travel directions of the transport unit and / or be limited by the dimensions of the transport unit.An advantage of the movement of the magnetically levitable transport unit oriented transversely to the drive surface can be that the magnetically levitable transport unit releases its associated drive surface at least for a short period of time, so that the decontamination agent can reach the drive surface and / or another surface, particularly during the first method step. Alternatively or additionally, the features of the independent claim directed to a protected clean room are provided according to the invention to achieve the stated object.In particular, to achieve the stated object in the protected cleanroom of the type described above, it is proposed according to the invention that the protected cleanroom have a decontamination unit into which the at least one magnetically levitable transport unit can be transferred and / or held before and / or during and / or after a method for decontamination of surfaces of a protected cleanroom. Thus, the at least one magnetically levitable transport unit can be transferred and / or held in a PC 240729 C 20 / 47 July 17, 2024 decontamination unit for decontamination. This is particularly advantageous if, as may be provided, the magnetically levitable transport unit is to be transferred and / or held in a decontamination position during a method claimed herein.However, it can also be provided that the magnetically levitable transport unit is to be transferred to and / or held on a decontamination unit before and / or after a method described and claimed herein. Thus, a decontamination unit can decontaminate a magnetically levitable transport unit during a decontamination method and / or before and / or after a decontamination method. This advantageously makes it possible to carry out the decontamination of a magnetically levitable transport unit independently of decontamination of the protected clean room, even if, as described and / or claimed below, the decontamination unit is arranged within a housing of the protected clean room, and / or wherein the decontamination unit is designed to be separable from the working chamber.Alternatively or additionally, the decontamination unit is assigned to the decontamination position described herein or to a decontamination position of the magnetically levitable transport unit. Thus, the decontamination unit can be arranged close to the magnetically levitable transport unit during the method, so that the decontamination agent can quickly and completely decontaminate the transport unit. The decontamination unit can be formed by the drive surface and / or as part of the drive surface. Thus, the at least one magnetically levitable transport unit can advantageously move over and / or past the decontamination unit, so that the PC 240729 C 21 / 47 July 17, 2024 decontamination agent is transferred directly to the at least one magnetically levitable transport unit and / or to the surface covered by the transport unit.The at least one magnetically levitable transport unit can also be transferred or moved into the decontamination unit for decontamination, in order to be held there, in particular, in the decontamination position described herein. In an advantageous embodiment of the protected clean room, it can be provided that the drive surface forms a first drive surface and the decontamination unit forms a second drive surface, in which the at least one magnetically levitable transport unit can be transferred and / or held. Thus, a magnetically levitable transport unit can be transferred and / or held from the protected clean room via the first drive surface to or into the decontamination unit, i.e., a second drive surface.This is particularly advantageous if the decontamination unit forms a decontamination position as described and / or claimed here and / or if the decontamination unit is designed to be detachable from the protected clean room. It can be provided that the second drive surface has a surface area that corresponds at least to the surface area of ​​a side of the at least one magnetically levitable transport unit facing the second drive surface. Thus, a decontamination position, in particular as described and / or claimed herein, can advantageously be formed in or on the decontamination unit. Preferably, the surface area of ​​the second drive surface is larger than the facing side of the magnetically levitable PC 240729 C 22 / 47 17.July 2024 transport unit, whereby the magnetically levitable transport unit can be used to execute different relative movements towards the second drive surface, in particular the one described and / or claimed herein. Thus, a change in distance to the second drive surface can also be realized by the magnetically levitable transport unit, whereby decontamination of the drive surface can be carried out even when the magnetically levitable transport unit is held on the second drive surface, in particular during the first method step. In an advantageous embodiment of the protected clean room, it can be provided that the decontamination unit has a distribution device for a preferably fluidic decontamination agent.This embodiment is particularly advantageous when the magnetically levitable transport unit is guided to the decontamination unit by applying a decontamination agent, or in particular the decontamination agent described herein, to the decontamination unit. Alternatively or additionally, it can be provided that the decontamination unit has a radiation source, preferably a UV light source, a pulsed light source, or an electron beam source. Thus, decontamination of the at least one magnetically levitable transport unit can be carried out at the decontamination unit by applying UV light radiation and / or pulsed light radiation and / or electron radiation, in particular as described and / or claimed herein. In an advantageous embodiment of the protected clean room, it can be provided that the protected clean room, PC 240729 C 23 / 47 17.July 2024, in particular the decontamination unit, has a coupling device to which the at least one magnetically levitable transport unit can be detachably connected. Thus, the at least one magnetically levitable transport unit can be detachably attached to the coupling device, whereby in particular a jacking up of the at least one magnetically levitable transport unit can be achieved. This is particularly advantageous if, as described herein, the at least one magnetically levitable transport unit is transferred to a jacked-up position, in particular during the first method step. Thus, the magnetically levitable transport unit can be transferred and / or held at a distance from the surface, in particular a drive surface assigned to it, during the introduction and / or action of the decontamination agent.Preferably, the coupling device is movable, so that the coupling device, together with the magnetically levitable transport unit, can perform at least one lifting and / or tilting movement of the magnetically levitable transport unit, which can be particularly advantageous during the method described and / or claimed herein. In an advantageous embodiment of the protected clean room, it can be provided that a current supply to the first and / or second drive surface is adjustable. Thus, a relative movement of the magnetically levitable transport unit on the first and / or second drive surface can be adjusted, whereby, in particular, a transfer and / or holding at the decontamination position and / or in the decontamination unit can be adjusted. In particular, it can be provided that a current supply can be amplified. This can be particularly advantageous if PC 240729 C 24 / 47 17.July 2024, the at least one magnetically levitable transport unit is to be held on the at least one first and / or second drive surface, and / or if, as described herein, a volume located between the magnetically levitable transport unit and the drive surface assigned to it is changed by a recurring and / or transversely oriented movement of the magnetically levitable transport unit to the drive surface during the at least one method step. Alternatively or additionally, it can be provided that a magnetic force on the first working surface and / or the second working surface is adjustable. Thus, the volume between the magnetically levitable transport unit and the drive surface assigned to it can be changed.In this case, a movement of the magnetically levitable transport unit can be initiated, terminated, and / or controlled, in particular, by changing the magnetic field formed by a stator arrangement, in particular as described herein. The stator arrangement comprises, in particular, movable permanent magnets that are and / or can be operatively connected to the magnetically levitable transport unit. The movable permanent magnets are preferably motor-driven. By controlled movement of the permanent magnets, a controlled, variable magnetic field can be generated, which can be used to drive a movement of the magnetically levitable transport unit. In an advantageous embodiment of the protected clean room, it can be provided that the decontamination unit is arranged on a housing of the protected clean room.Thus, the magnetically levitable transport unit can be transferred and / or held in the decontamination unit without leaving the protected cleanroom. This can prevent the transfer of contamination from outside the protected cleanroom into the protected cleanroom. In particular, the decontamination unit is arranged adjacent to a working chamber of the protected cleanroom. Thus, the decontamination unit can be formed, for example, in a lock described herein or a rapid transfer port as described herein. Alternatively or additionally, it can be provided that the decontamination unit is designed to be separable from the working chamber. Thus, the at least one magnetically levitable transport unit can be transferred and / or held in the decontamination unit and decontaminated.By separating the working chamber, it can be ensured that during the decontamination of the at least one magnetically levitable transport unit in the decontamination unit, the working chamber is not impaired by the decontamination agent applied in the decontamination unit. This can prevent mixing and / or unintentional entry of the decontamination agent from the decontamination unit into the protected cleanroom. This is particularly advantageous if, as described above, the decontamination unit is arranged within a housing of the protected cleanroom. In an advantageous embodiment of the protected cleanroom, it can be provided that the protected cleanroom has a receptacle for a preferably packaged magnetically levitable transport unit.Thus, a packaged, already decontaminated, magnetically levitable transport unit can be picked up from outside the closed clean room, in particular during or after the first PC 240729 C 26 / 47 July 17, 2024 method step. The receptacle can in particular be a surface, in particular a drive surface assigned to the at least one magnetically levitable transport unit. However, it is also conceivable for the receptacle to form a receiving surface that is not designed to drive the at least one magnetically levitable transport unit, for example a surface of a coupling device described herein or a suspension, in particular a hook. In particular, however, it can be provided that the receptacle enables the at least one, in particular all, side(s) of the packaging in which the magnetically levitable transport unit is packaged to be decontaminated.This prevents the introduction of contamination into the protected cleanroom when the packaging is introduced during or after the first process step. Decontaminated, magnetically levitable transport units can thus be supplied to a protected cleanroom. In an advantageous embodiment of the protected cleanroom, it can be provided that the protected cleanroom comprises at least one ventilation system for the at least one magnetically levitable transport unit and / or the ventilation position. The ventilation system is particularly designed to form a ventilation flow as described and / or claimed herein.This advantageously allows the at least one magnetically levitable transport unit to be transferred to the ventilation position or a ventilation position, so that, particularly during the second method step described herein, a ventilation phase ventilates the at least one magnetically levitable transport unit. This advantageously allows decontaminant to be removed from the surfaces. PC 240729 C 27 / 47 July 17, 2024 The invention thus enables, according to an aspect of potentially independent inventive quality, the use of a magnetically levitable transport unit for distributing air enriched with a decontaminant in a protected clean room.Thus, for example, surfaces that are difficult to reach for the decontaminant can be made accessible to the decontaminant, for example by exposing these surfaces and / or by actively conveying the decontaminant through the at least one magnetically levitable transport unit. Alternatively or additionally, according to an aspect of potentially independent inventive quality, the invention thus enables the use of an externally decontaminated packaging for transferring a decontaminated, magnetically levitable transport unit into a protected cleanroom. Thus, for example, a conveyor system with transport units can be easily decontaminated by unpacking the individually decontaminated transport units and placing them into the working position only after the protected cleanroom has been decontaminated.In an advantageous embodiment of the protected clean room, it can be provided that the decontamination position is formed outside a coupling region of the drive surface. Thus, the drive surface can be free of magnetically levitable transport units, which are transferred to the decontamination position during the process, particularly during the first method step. Thus, few or no areas of the drive surface can be covered by magnetically levitable transport units while the decontamination agent is introduced and / or acts. PC 240729 C 28 / 47 July 17, 2024 The coupling region refers in particular to the region that just barely permits a magnetic coupling of the magnetically levitable transport unit to the drive surface assigned to it.If the decontamination position is outside the coupling area, the transport unit removed from this coupling area and transferred to the decontamination position cannot couple to the drive surface, for example to levitate. This embodiment is particularly advantageous if the protected clean room has at least one coupling device onto which the magnetically levitable transport unit is or can be jacked up. This embodiment is particularly advantageous if, as intended, the decontamination position is formed within the protected clean room. The invention will now be described in more detail using exemplary embodiments, but is not limited to these exemplary embodiments. Further exemplary embodiments arise from combining the features of one or more claims with one another and / or with one or more features of the exemplary embodiments. It shows / shows: Fig.1: a protected cleanroom according to the invention, Fig. 2: the protected cleanroom according to the invention from Fig. 1 with an additional ventilation system, Figs. 3 and 4: the protected cleanroom according to the invention from Fig. 1 during the action (Fig. 3) and introduction (Fig. 4) of the decontaminant, Figs. 5 and 6: an alternative embodiment of a protected cleanroom with a coupling device before the introduction (Fig. 5) during the introduction (Fig. 6) of the decontaminant, Fig. 7: a further alternative embodiment of a protected cleanroom with a coupling device during the introduction of the decontaminant, Figs. 8 and 9: schematic representation of the movement options of the magnetically levitable transport unit as a side view (Fig. 8) and as a top view (Fig. 9), Fig. 10: the protected cleanroom according to the invention Cleanroom from Fig. 1 with three additional decontamination units, Fig.11: an alternative embodiment of a protected cleanroom with a decontamination unit that can be separated from the working chamber. Fig. 12: the protected cleanroom according to the invention from Fig. 1, with a focus on the volume located between the magnetically levitable transport unit and the drive surface. PC 240729 C 30 / 47 July 17, 2024. Fig. 13: a further alternative embodiment of a protected cleanroom with a radiation source. Fig. 14: a further alternative embodiment of a protected cleanroom with two radiation sources arranged between drive surfaces. Fig. 15: an alternative embodiment of a protected cleanroom with a gripper robot having a receptacle for the packaged transport unit. Figure 1 shows a protected cleanroom 1 designed as an isolator 2.The protected clean room 1, 2 has, for example, four magnetically levitable transport units 4 and—also for example—two drive surfaces 7 assigned to the transport units 4, wherein the protected clean room 1, 2 has a decontamination unit 10 (cf. Figure 10) into which the at least one magnetically levitable transport unit 4 is formed before and / or during a method and / or after a method for decontaminating surfaces 6 of a protected clean room 1, 2. In further exemplary embodiments, other numbers of transport units 4 and / or other numbers and / or configurations of drive surfaces 7 are present. A magnetically levitable transport unit 4 from Figure 1 forms, together with the drive surface 7, a drive unit 11 of a transport device 12. The drive surface 7 is formed by the stator arrangement 22 arranged outside the housing 19 of the protected clean room 1, 2. The stator PC 240729 C 31 / 47 17.July 2024 Arrangement 22 contains an energizable coil arrangement and / or controlled movable permanent magnets to generate a levitating magnetic field. A method for decontaminating internal surfaces 6 of the protected cleanroom 1, 2 is described below, as can be or is carried out in the protected cleanroom 1, 2. Reference is made to Figure 1 and other figures in addition to Figure 1. Components and functional units that are functionally and / or structurally similar or identical to the embodiments described in Figure 1 are designated by the same reference numerals and are not described separately again. The statements relating to Figure 1 therefore apply accordingly to Figures 2 to 15.The method comprises a first method step in which a decontaminant 3 is introduced into the working chamber 20 of the protected clean room 1, 2 via a mandatory distribution device 23 of the protected clean room 1, 2 (Figure 4) and acts in the protected clean room 1, 2 (Figure 3). During the method, the four magnetically levitable transport units 4 are transferred or held in at least one decontamination position 5 during at least one method step. Before the decontaminant 3 is introduced, two magnetically levitable transport units 4 move away from their associated drive surfaces 7 (the movement is shown by arrows) (Figure 1). These two magnetically levitable transport units 4 are transferred and held in the decontamination position 5 (Figure 4). PC 240729 C 32 / 47 17.July 2024 The two additional magnetically levitable transport units 4 are already located in the decontamination position 5 (Figure 1) prior to the process step (Figure 1), in particular prior to the introduction of the decontamination agent. Although not limited to these two magnetically levitable transport units 4, these two magnetically levitable transport units 4 move in six degrees of freedom (represented by six arrows) during the introduction (Figure 4) and / or during the action (Figure 3) of the decontamination agent 3. In particular, these magnetically levitable transport units 4 perform a tilting movement (two curved arrows) at the decontamination position 5, whereby the decontamination agent 3 optimally reaches the hard-to-reach areas between the undersides of the magnetically levitable transport unit 4 and the drive surfaces 6, 7.Likewise, the magnetically levitable transport units 4 each rotate around their center point during positioning, thereby at least supporting the distribution of the decontamination agent 3 in the protected clean room 1, 2 (Figures 3 and 4). During the first method step, the magnetically levitable transport units 4 move at a decontamination speed that, on average, is slower and / or faster than an operating speed that the magnetically levitable transport unit 4 has during operation. Preferably, the movement of the magnetically levitable transport units 4 is, on average, slower than an operating speed. Thus, no surface 6, in particular drive surface 7, remains covered by a magnetically levitable transport unit 4 for long, so that the decontamination agent 3 can reach the surface 6, 7 and act on it.In an embodiment not shown, the decontamination speed is equal to the operating speed of the magnetically levitable transport unit 4. It can be provided, in particular, as shown in Figures 8 and 9, that at least one magnetically levitable transport unit 4 performs a constant movement, for example, over several tiles along the drive surface, at least during the first method step in order to carry out a change of location during the first method step (Figure 9). The magnetically levitable transport units 4 can also be jacked up. The jacked-up transport units 4 are detachably connected to a coupling device 18 (Figures 5 to 7). In this case, magnetically levitable transport units 4 that can be moved along a vertical wall 6, 7 or a horizontal wall 6, 7 can be jacked up in order to carry out a change in distance or a change in volume (cf.Figure 12) so that more decontamination agent 3 reaches the magnetically levitable transport units 4 and the respective associated drive surfaces 6, 7 during the process. The jacking up of the magnetically levitable transport units 4 can be carried out actively, e.g. by increased current supply to the drive surface 6, 7 (see Figures 5 and 6) and the resulting lifting movement of the transport unit 4, or passively, e.g. by a gripper robot 24 (see Figure 7). The jacking up of the magnetically levitable transport unit 4 can be carried out in particular by increasing the magnetic force of the stator arrangement 22. In all embodiments shown in Figures 1 to 15, the decontamination duration is such that the local residence time of the magnetically levitable transport unit 4 is shorter than the exposure time of the decontamination agent on the surface 6, 7.The protected clean room 1, 2 further comprises two additional decontamination units 10 arranged on the housing 19, each decontamination unit 10 forming a decontamination position 5 in the working chamber 20, which is assigned to a magnetically levitable transport unit 4 (e.g., Figure 10). Thus, the magnetically levitable transport units 4 can alternatively be decontaminated, in addition to decontamination, using the decontamination agent 3 introduced from the distribution device 23. In the embodiment shown here, the magnetically levitable transport units 4 are decontaminated by applying decontamination agent 3 from an additional distribution device 17 of the decontamination unit 10, particularly to the undersides. Thus, the decontamination agent 3 reaches precisely between the drive surface 6, 7 and the underside of the magnetically levitable transport unit 4.Figure 7 shows that the decontamination position 5 is formed outside a coupling region of the drive surface 6, 7. Thus, during the introduction and action of the decontamination agent 3 by the distribution device 23, the drive surface 6, 7 is free of magnetically levitable transport units 4, which were transferred to the decontamination position 5 by the gripper robot 24 during the process and jacked up, suspended, and / or fastened to a coupling device 18. This embodiment is particularly advantageous if the protected clean room has at least one coupling device onto which the magnetically levitable transport unit PC 240729 C 35 / 47 July 17, 2024 is or can be jacked up. This embodiment is particularly advantageous if, as intended, the decontamination position is formed within the protected clean room.In alternative embodiments of protected clean rooms 1, 2, the decontamination agent 3 is radiation 30, for example UV light radiation, which is introduced into the protected clean room 1, 2 by a radiation source 27 or a UV light source 28 (Figures 13 and 14). However, pulsed light sources and / or electron beam sources can also be provided alternatively or additionally in such embodiments. In Figure 14 it can be seen that the two UV light sources 28 are arranged between drive surfaces 6, 7, so that the at least one magnetically levitable transport unit 4 can travel over them in order to be decontaminated by the radiation 30 emitted by the UV light source 28, in particular the underside of the magnetically levitable transport unit 4. As can also be seen, the radiation source 27, 28 can be arranged on horizontal and vertical walls, but also on inclined walls (not shown) of the protected clean room 1, 2.In a further alternative embodiment of a protected clean room 1, 2, the decontamination unit 10 is designed as a lock 25, in which a distribution device 17 for applying the decontamination agent 3 is located. As shown in Figure 11, a magnetically levitable transport unit 4 is transferred during the first method step into the lock 25, which is designed to be detachable from the protected room 1, 2 (dashed vertical line), to a decontamination position 5. Thus, the lock PC 240729 C 36 / 47 July 17, 2024 25 forms a second drive surface 16, into which the magnetically levitable transport unit 4 can be transferred from the first drive surface 6, 7. Another magnetically levitable transport unit 4 is transferred in the decontaminated state into the working chamber 20 via a rapid transfer port 26. The current supply to the first drive surfaces 6, 7 and the second drive surfaces 16 is adjustable.Thus, as in all embodiments shown, the volumes 15 located between the magnetically levitable transport units 4 and the drive surfaces 6, 7 or 16 assigned to them can be changed during the first method step by a preferably recurring movement of the magnetically levitable transport unit 4 aligned transversely to the drive surface 6, 7 or 16. Thus, a change in distance, for example by a recurring lifting and / or tilting movement, can change the volume 15, so that decontamination between the magnetically levitable transport units 4 and the drive surfaces 6, 7 or 16 is enabled or improved. Alternatively or additionally, a magnetic force on the first working surfaces 6, 7 and the second working surfaces 16 can be regulated in order to change the volume 15 between the magnetically levitable transport units 4 and the drive surfaces 6, 7 or 16 assigned to them.A movement of the magnetically levitable transport unit 4 is initiated, terminated, and / or controlled, in particular, by changing the magnetic field generated by a stator arrangement 22. The stator arrangement 22 comprises, in particular, movable permanent magnets that are and / or can be operatively connected to the magnetically levitable transport unit 4. The movable permanent magnets are preferably motor-driven. A controlled movement of the permanent magnets thus generates a variable magnetic field, which is used to drive a movement of the magnetically levitable transport unit 4.Another magnetically levitable transport unit 4 of the embodiment shown in Figure 11 is packaged in a package 13, also (or alternatively) located in the working chamber 20, so that during the process, the outer side 14 of the package 13 is decontaminated before the magnetically levitable, decontaminated transport unit 4 located in the package 13 is unpacked and transferred to the work surface 6, 7 (the dashed representation of the transport unit 4 shows the transport unit 4 after transfer) (see Figure 15). The transfer of the magnetically levitable transport unit 4 is carried out by a gripper robot 24 of the protected space 1, 2, which removes the transport unit 4 from a receptacle 21 designed as a suspension 30. The gripper robot 24 can grip and store the magnetically levitable transport unit 4 during the process (see also Figure 7).The introduction of the magnetically levitable transport unit 4 from the lock 25 and / or from the rapid transfer port 26 and / or from the packaging 13 into the protected clean room 1, 2 preferably takes place after the first method step. In the alternative embodiments shown in Figures 11 and 15, it is technically possible and carried out that a part of the drive unit 11, here the magnetically levitable transport unit 4, remains outside the protected clean room 1, 2 during at least one method step and is subsequently introduced in a decontaminated state. PC 240729 C 38 / 47 July 17, 2024 After decontamination has taken place, the decontaminating agent is removed from the protected clean room 1, 2. The method comprises a second method step, wherein the second method step comprises an aeration phase and follows the first method step.During the second method step, the magnetically levitable transport units 4 perform a relative movement, in particular a movement and / or a lifting and / or tilting movement, to the surface 6, 7, or 16. In the second method step, the magnetically levitable transport units 4 are transferred to a ventilation position 8 of a ventilation system 29 and exposed to a concentrated ventilation flow 9 in order to remove any remaining decontamination agent 3 from the surfaces of the magnetically levitable transport units 4. After decontamination has taken place, the magnetically levitable transport units 4 of the illustrated embodiments can be brought to their working position. This can be achieved, for example, by moving the magnetically levitable transport units 4 along the drive surface 6, 7 (or from drive surface 16 to drive surface 6, 7), by manual gloved intervention, or by the gripper robot 24.The method described herein improves the decontamination of surfaces 6 of a protected cleanroom 1, 2, and magnetically levitable transport units 4 can be used in these protected cleanrooms 1, 2. The invention generally proposes a method for decontamination of surfaces 6 of a protected cleanroom 1, in particular an isolator 2 and / or a restricted access barrier system.The method comprises at least one method step in which a decontamination agent 3 is introduced into the protected cleanroom 1 and / or acts in the protected cleanroom 1. It is further characterized in that at least one magnetically levitable transport unit 4, which is magnetically coupled or coupled to a drive surface 7, is transferred into at least one decontamination position 5 before or during the at least one method step and / or is held in a decontamination position 5. The invention also proposes a protected cleanroom 1 and a corresponding use. / List of reference symbols.

[0002] PC 240729 C 40 / 47 17 July 2024 List of reference symbols 1 protected clean room 2 isolator 3 decontamination agent 4 magnetically levitable transport unit 5 decontamination position 6 surface of 1 7 drive surface of 4 8 ventilation position 9 ventilation flow 10 decontamination unit 11 drive unit 12 transport device 13 packaging 14 outer side of 13 15 volume between 4 and 7 16 (second) drive surface, in 10 17 distribution device for 3 of 10 18 coupling device 19 housing of 1 20 working chamber of 1 21 receptacle of 1 22 stator arrangement 23 distribution device for 3 of 1 24 gripper robot 25 lock 26 rapid transfer port 27 radiation source 28 UV light source 29 ventilation system 30 Suspension / Claims

Claims

PC 240729 C 41 / 47 July 17, 2024 Claims 1. A method for decontaminating surfaces (6) of a protected clean room (1), in particular an isolator (2) and / or a barrier system for restricted access, wherein the method comprises at least one method step in which a decontaminating agent (3) is introduced into the protected clean room (1) and / or acts in the protected clean room (1), characterized in that at least one magnetically levitable transport unit (4), which is magnetically coupled or can be coupled to a drive surface (7), is transferred into at least one decontamination position (5) before or during the at least one method step and / or is held in a decontamination position (5). 2.Method according to claim 1, wherein the at least one magnetically levitable transport unit (4) performs a relative movement to at least one surface (6) located in the protected clean room (1), in particular the drive surface (7), during the transfer to the decontamination position (5) and / or at the decontamination position (5), and / or wherein the at least one magnetically levitable transport unit (4) is jacked up at the decontamination position (5).

3. Method according to one of the preceding claims, wherein during the at least one method step, the at least one magnetically levitable transport unit (4) levitates and / or moves in at least one degree of freedom, preferably in at least two degrees of freedom, and / or wherein the magnetically levitable transport unit (4) rotates around a point of the transport unit (4), in particular its center point. PC 240729 C 42 / 47 July 17, 2024 moved, in particular rotated.

4. Method according to one of the preceding claims, wherein the at least one magnetically levitable transport unit (4) distributes the decontamination agent (3) during the transfer and / or holding in the decontamination position (5) in the protected clean room (1), at least in a supporting manner, and / or wherein the method comprises at least a second method step, wherein the at least second method step comprises a ventilation phase and preferably follows the first method step in time, and / or wherein the at least one magnetically levitable transport unit (4) performs a relative movement, in particular a movement and / or a lifting and / or tilting movement, to the or a surface (6) during the second method step.Method according to one of the preceding claims, wherein the at least one magnetically levitable transport unit (4) is transferred to a ventilation position (8) during the second method step and / or is exposed to a preferably concentrated and / or concentrable ventilation flow (9) and / or wherein the at least one magnetically levitable transport unit (4) moves during the method, in particular during the first method step, at a decontamination speed which is slower and / or faster on average over time than an operating speed which the at least one magnetically levitable transport unit (4) has during operation.

6. Method according to one of the preceding claims, wherein the decontamination speed is equal to the or an operating speed and / or wherein the. PC 240729 C 43 / 47 July 17, 2024 The decontamination duration is dimensioned such that a local residence time of the at least one magnetically levitable transport unit (4) is different in time, in particular shorter, than an exposure time of the decontamination agent (3) on the surface (6).

7. Method according to one of the preceding claims, wherein the decontamination position (5) is designed as part of a decontamination unit (10) in which the at least one magnetically levitable transport unit (4) is decontaminated alternatively or additionally to decontamination using the decontamination agent (3), in particular wherein the decontamination of the at least one magnetically levitable transport unit (4) on the decontamination unit (10) is carried out by applying the or a decontamination agent (3), in particular radiation (30), preferably UV light radiation and / or pulsed light radiation and / or electron radiation. 8.Method according to the preamble of claim 1 or according to one of the preceding claims, wherein the or at least one magnetically levitable transport unit (4) with the or a drive surface (7) forms a drive unit (11) of a transport device (12), characterized in that a part of the drive unit (11), in particular the at least one magnetically levitable transport unit (4), in particular during the at least one method step, remains outside the protected clean room (1) and is subsequently introduced in a preferably decontaminated state.

9. Method according to one of the preceding claims, wherein the at least one magnetically levitable transport unit (4) is packed in a packaging (13) in the protected. PC 240729 C 44 / 47 July 17, 2024 clean room (1) and unpacked, and / or wherein the surface (6), in particular the drive surface (7), and at least one outer side (14) of the packaging (13) are decontaminated and / or wherein the at least one magnetically levitable transport unit (4) is held at the decontamination position (5) during the first method step and is then transferred to the drive surface (7), preferably in a subsequent method step. 10.Method according to the preamble of claim 1 or according to one of the preceding claims, characterized in that a volume (15) located between the or one magnetically levitable transport unit (4) and the or one of the drive surfaces (7) associated therewith is changed by a preferably recurring and / or transversely oriented movement of the at least one magnetically levitable transport unit (4) during the at least one or one method step. 11.Protected clean room (1), in particular an isolator (2) and / or barrier system for restricted access, comprising at least one magnetically levitable transport unit (4) and at least one drive surface (7) assigned thereto, characterized in that the protected clean room (1) has a decontamination unit (10) into which the at least one magnetically levitable transport unit (4) is designed to be transferable and / or retainable before and / or during and / or after a method for decontaminating surfaces (6) of a protected clean room (1), in particular according to a preceding claim directed to a method. PC 240729 C 45 / 47 July 17, 2024 12. Protected clean room (1) according to the preceding claim, wherein the drive surface (7) forms a first drive surface (7) and wherein the decontamination unit (10) forms a second drive surface (16) into which the at least one magnetically levitable transport unit (4) can be transferred and / or held, and / or wherein the decontamination unit (10) has a distribution device (17) for a fluidic decontamination agent (3) and / or a radiation source (27), preferably a UV light source (28), a pulsed light source, or an electron beam source. 13.Protected clean room (1) according to one of the preceding claims directed to a protected clean room (1), wherein the protected clean room (1), in particular the decontamination unit (10), has a preferably movable coupling device (18) to which the at least one magnetically levitable transport unit (4) is detachably connectable, and / or wherein a current supply to the first and / or second drive surface (7, 16) is adjustable, in particular amplified, and / or wherein a magnetic force on the first and / or second drive surface (7, 16) is adjustable. 14.Protected clean room (1) according to a preceding claim directed to a protected clean room (1), wherein the decontamination unit (10) is arranged on a housing (19) of the protected clean room (1), in particular adjacent to a working chamber (20), and / or wherein the decontamination unit (10) is designed to be separable from the working chamber (20), and / or wherein the decontamination unit (10) is assigned to the or a decontamination position (5) of the magnetically levitable transport unit (4). PC 240729 C 46 / 47 July 17, 2024 15. Protected cleanroom (1) according to a preceding claim directed to a protected cleanroom (1), wherein the protected cleanroom (1), preferably the decontamination unit (10), has a receptacle (21), in particular a suspension (30), of a preferably packaged magnetically levitable transport unit (4) and / or wherein the protected cleanroom (1) comprises at least one ventilation system (29) for the at least one magnetically levitable transport unit and / or the ventilation position and / or wherein the decontamination position (5) is formed outside a coupling region of the drive surface (7), preferably within the protected cleanroom (1). 16.Use of a magnetically levitable transport unit (4) for distributing air enriched with a decontaminant in a protected clean room (1), in particular in a protected clean room according to one of the preceding claims 11 to 15 and / or in a method according to one of the preceding claims 1 to 10.

17. Use of an externally decontaminated packaging for transferring a decontaminated, magnetically levitable transport unit (4) into a protected clean room (1), in particular in a protected clean room according to one of the preceding claims 11 to 15 and / or in a method according to one of the preceding claims 1 to 10. / Summary.