DE10341346A1 - Method and devices for keeping particular room in sterile condition, comprising sterile cover for walls and floor and ionization chamber - Google Patents

Abstract

Each of the walls (2) is fitted with a drum (10) comprising endless sheets of sterile material (7) to be dispensed, attached to a chargeable panel (5) at the wall (2), and used only once before replacement. The floor (3) is also provided with a new cover for each use of the room (1). A suction unit (6) removes the air present between floor (3) and cover. Ionized air is guided into the room (1) while an operation or scientific research is performed.

Description

The The invention relates to a method and a device system for Sterile and / or clean rooms.

To the State of the art belongs the equipment of sterile areas such as operating rooms, medical Laboratory and pathology rooms as well virological and bacteriological research laboratories with tiled sidewalls and floors. For this will be usually used grouted ceramic or plastic tiles. The joint areas in the interior design with ceramic tiles have a high surface roughness and therefore form the ideal receptacle for bacteria, viruses, fungi, Bacilli and other organic and / or inorganic contaminants like dirt. Instead of tile arrangements, the side walls and Floors of the said spaces also with a paint from a plastic paint and the like. Mistake be. As a multiple paint coating, the surface roughness the side walls and floors not Completely bacteria, viruses, fungi, bacilli and others organic and / or inorganic contaminants such as dirt undesirable settlement surfaces. Therefore have to the side walls and floors of this Rooms after their use and / or at certain intervals, preferably wet-chemically, washed off to a high standard of sterility and operational safety to ensure. Despite compliance with the cleaning regulations, for example Wound infections in surgical areas can not be completely ruled out. The Problem of sterile and / or cleanliness also arises in pharmacological, biological, food-chemical as well as scientific and engineering research and development laboratories.

It is therefore an object of the invention, the sterility standard and the purge of sterile and / or kept clean rooms.

This object is achieved with the features of the claim 1 and the independent claim 6 and the respective dependent claims.

• a) Das Bereitstellen von Rollen, die mit fabrikneuen, sterilen, elektrostatisch aufladbaren Kunststofffolien, insbesondere in Bandform, belegt sind;
• b) das Bereitstellen von elektrostatisch aufladbaren, plattenförmigen Flächenelementen;
• c) das Anbringen der Flächenelemente an vertikalen und ggf. horizontalen Raumbegrenzungselementen wie Seitenwänden und Fußböden von steril- und/oder reinzuhaltenden Räumen;
• d) das Abdecken der Flächenelemente vor der Benutzung der steril- und/oder reinzuhaltenden Räume mit elektrostatisch aufladbaren Kunststofffolien, die entsprechend der Dimensionierung der Flächenelemente von den Rollen gemäß Maßnahme a) abgerollt werden;
• e) das Absaugen von Luft, die sich zwischen dem horizontalen Raumbegrenzungselement wie Fußboden und der darauf abgelegten Kunststofffolie befindet;
• f) das Einleiten eines von der Decke zum Fußboden gerichteten gasförmigen, ionisierten Mediums wie Luft in die steril- und/oder reinzuhaltenden Räume während der Benutzung dieser Räume; und
• g) das Auswechseln der Kunststofffolienabdeckungen nach der Benutzung der steril- und/oder reinzuhaltenden Räume.

The method according to the invention essentially comprises the following measures:

• a) The provision of rolls, which are covered with brand new, sterile, electrostatically chargeable plastic films, especially in tape form;
• b) the provision of electrostatically chargeable, plate-shaped surface elements;
• c) attaching the surface elements to vertical and possibly horizontal space delimiting elements such as side walls and floors of sterile and / or kept clean rooms;
• d) the covering of the surface elements before the use of sterile and / or clean rooms with electrostatically chargeable plastic films, which are rolled according to the dimensioning of the surface elements of the rollers according to measure a);
• e) the suction of air, which is located between the horizontal space boundary element such as floor and the plastic film deposited thereon;
• f) introducing a gaseous, ionized medium directed from the ceiling to the floor, such as air, into the rooms to be sterilized and / or kept clean while using these rooms; and
• g) the replacement of the plastic film covers after the use of sterile and / or clean rooms.

To an embodiment The invention is the covering of the horizontal space boundary element waiving the arrangement of a surface element directly on the floor with a plastic film cover possible, in which case the air between the horizontal space boundary element and the To suck plastic film cover is to form a positive attachment to reach the plastic film cover on the floor.

• aa) Die Anordnung mindestens eines elektrostatisch aufladbarem plattenförmigen Flächenelementes auf einem vertikalen und ggf. horizontalen Raumbegrenzungselement eines Raumes;
• bb) Die Anordnung mindestens einer Rolle, die mit einem fabrikneuen, sterilen Kunststofffolienband belegt ist, an oder in dem oberen Ende eines vertikalen Raumbegrenzungselementes wie Seitenwand des steril- und/oder reinzuhaltenden Raumes;
• cc) die Anordnung einer Leerrolle, auf der die mit dem Kunststofffolienband gebildete Kunststofffolienabdeckung nach der Benutzung des Raumes aufzurollen ist, an oder in dem unteren Ende des vertikalen Raumbegrenzungselementes wie Seitenwand;
• dd) die Anordnung mindestens einer Rolle, die mit einem fabrikneuen, sterilen Kunststofffolienband belegt ist an oder in dem einen Ende eines horizontalen Raumbegrenzungselementes wie Fußboden des steril- und/oder reinzuhaltenden Raumes;
• ee) die Anordnung mindestens einer Leerrolle, auf der die mit dem Kunststofffolienband gebildete Kunststofffolienabdeckung nach der Benutzung des Raumes aufzurollen ist, an oder in dem gegenüberliegenden Ende des horizontalen Raumbegrenzungselementes wie Fußboden des steril- und/oder reinzuhaltenden Raumes;
• ff) die Anordnung einer Ionisationskammer in der Decke des steril- und/oder reinzuhaltenden Raumes angeordnet ist; und
• gg) die Anordnung mindestens eines Aufladestabes, der durch das vertikale Raumbegrenzungselement wie Seitenwand bis zu dem elektrostatisch aufladbarem, plattenförmigen Flächenelement geführt ist.

The device system according to the invention comprises essentially the following features:

• aa) The arrangement of at least one electrostatically chargeable plate-shaped surface element on a vertical and possibly horizontal space delimiting element of a room;
• bb) The arrangement of at least one roll, which is covered with a brand new, sterile plastic film tape, at or in the upper end of a vertical Raumbegrenzungselementes as the side wall of the sterile and / or keep pure space;
• cc) the arrangement of a blank roll on which the plastic film cover formed with the plastic film tape is to be rolled up after use of the space, at or in the lower end of the vertical space delimiting element such as side wall;
• dd) the arrangement of at least one roll, which is covered with a brand new, sterile plastic film tape on or in the one end of a horizontal Raumbegrenzungselementes floor of the sterile and / or keep pure space;
• ee) the arrangement of at least one empty roll, on the roll of plastic film formed with the plastic film ribbon is to be rolled up after use of the space, at or in the opposite end of the horizontal space delimiting element as the floor of the room to be sterilized and / or kept clean;
• ff) the arrangement of an ionization chamber in the ceiling of the sterile and / or pure space is arranged; and
• gg) the arrangement of at least one charging rod, which is guided through the vertical space delimiting element such as side wall to the electrostatically chargeable, plate-shaped surface element.

The inventive device system can Further, the arrangement of at least one guide roller after the with a Plastic film tape occupied role for the deflection of the surface element applied plastic film tape and / or at least one further pulley in front of the empty roll for the deflection of the surface element to be peeled off and rolled up plastic film cover include the use of the room. Further, those with plastic film tape occupied roles, the idler rollers and the pulleys in not shown Bearing elements arranged on or in the room boundary elements are stored. Furthermore For example, every empty roll is one not shown Drive unit such as electric motor connected to at least one free End of the empty roll is arranged, equipped to transport of the plastic film tape to create the plastic film covers for the room boundary elements to enable.

The Invention finds especially in operating rooms, pathology rooms as well medical, pharmacological, biological, food-chemical, chemical, scientific and engineering research and development labs Application. The invention can also be used in production areas with special requirements for air purity, as for example in the chip production is required. The invention is for equipping new or rebuilt or retrofitted, sterile and / or kept rooms. With the invention Due to the elimination of filter devices is a surprisingly new Way to sterile and cleanliness of critical spaces created. The disposal and cleaning problem resulting from the use of filter materials and moisturizers, is largely with the invention defused.

To The invention preferably stainless steel sheets or plastic plates used as electrostatically chargeable, plate-shaped surface elements, the in length and height or width of the room boundary elements such as vertical side walls and may correspond to horizontal floors. The vertical and possibly horizontal Raumbegrenzungselemente can with the plate-shaped surface elements Completely and solid or detachable lined become. Existing doors and window areas in a vertical space boundary element with presettable, in particular parallel to the adjacent surface elements bridged sliding surface elements.

In front the use of sterile and / or clean rooms by Humans, animals or robots become the superior of the room boundary elements disc-shaped surface elements covered by the plastic films and completely covered. Due to the electrostatic charge of the surface elements are to whose cover provided plastic films to rest against the surface elements brought. While the use of space becomes a gaseous, ionized medium such as ionized air continuously or discontinuously or If necessary, timed initiated in the sterile and / or pure space. The strenght or intensity of the preferably ionized from the ceiling to the floor Airflow is adjustable. The in the atmosphere of the sterile and / or pure Space existing miniaturized organic and inorganic Particles of matter are ionized by the introduced gaseous ionized medium and the electrostatically charged plastic film liner of the sterile and / or kept clean room and it held tight. After using the sterile and / or keep pure Rooms through Humans, animals or robots become the plastic films loaded with the substance particles removed from the sterile and / or clean room. This process the renewal of the plastic films in the sterile and / or kept pure clear done with electromechanical support.

The The invention further comprises a device system for the arrangement of Plastic films on or on room boundary elements of sterile and / or rooms to be kept clean. These include the plate-shaped, electrostatically chargeable surface elements, on the vertical and horizontal room boundary elements the sterile and / or kept pure Rooms on the interior side are to be attached. These surface elements are preferably made of stainless steel plates or plastic boards. The Fixing the surface elements to the room boundary elements can firmly by means of anchors, dowels and the like or solvable by means of wall hooks, spring clips, plug connections such as sleeves or Catches take place.

To the device system according to the invention also includes at least one interchangeable role as a carrier for a brand new, electro statically chargeable plastic film tape acts. This role, which is occupied by a brand-new plastic film tape, is mounted on the end in receiving mounts on or in a room delimiting element. In addition, starting from the roll carrying the brand-new plastic film, a deflection roll can be provided on the roll-off side, which is mounted at the end on or in the space-limiting element. In this way, a smooth transition in the storage of the plastic film is achieved on the electrostatically chargeable plate-shaped surface element. The brand-new plastic film is led to complete coverage of this surface element. After use of the space to be sterilized and / or kept clean by humans, animals and / or robots, the plastic film strip, the interior surface of which is loaded with electrostatically deposited organic and / or inorganic particles, passes another deflection roller, which also makes a smooth transition to another Creates a role. This additional role still carries no plastic film in the starting position and is therefore referred to as empty roll. This designation is maintained even if already used plastic film tape is rolled up on this roll. The unwinding and rolling up is usually discontinuous and therefore repeats itself only after use of the sterile and / or clean room. The roll-up side rollers, ie deflection roller and empty roller, are interchangeable end mounted in receiving storage on or in the room boundary element.

to Generation and application of static electricity to a plate-shaped surface element can For example, a charging bar is arranged in this local area be over a charging generator is supplied with high voltage. For ionization of the gaseous Medium such as air in the sterile and / or pure space can arranged in the ceiling area, for example, a ring or bar ionizer be over a filter control valve with compressed air and a high voltage power supply is supplied with high voltage.

Even though Plastic films are already electrostatic when rolled up or unrolled charging by way of so-called contact charging, the on the vertical space boundary elements attached surface elements by means of the back applied charging electrodes, by a charging generator with High voltage to be supplied, specifically electrostatically positive or negatively charged. This charge causes the attraction of the plastic films to the surface elements. Pass the surface elements the pre-set positive or negative landing the plastic film cover.

Of the floor a sterile and / or clean room is not mandatory with plate-shaped, electrostatically chargeable surface elements equip. The floor but in any case cover with plastic films, analogous to the coverage of the vertical surface elements technologically and to act constructively. To achieve an optimal system the plastic film to the floor the air in between is to be sucked off. That's why at least an opening, for example in the form of a longitudinal slot, in the floor provided, which is connected to an air suction device.

The sterile and / or kept rooms are usually under light atmospheric pressure, so from the outside no organic and inorganic particles of the outside atmosphere such as ambient air can penetrate. Therefore, according to one embodiment the invention in the ceiling area of these rooms pure or pure air inlet systems intended. The invention combines these devices with one Ion generator used to maintain the overpressure in the sterile and / or ionized air introduced into the room to be kept clean. The ionized Air gives the charge potential to those in the sterile and / or kept pure Space available or by activities carried out, unwanted, in the micro and / or nano range present organic and / or inorganic particulates from the surface of the electrostatically charged plastic films and attracted to it be knocked down. This so-called ion shower can in continuous operation or intermittently be used to such spaces operating rooms Keep germ-free. With the invention becomes an essential contribution to improve the quality standard of sterilized and / or kept clean rooms.

To In any room use, the plastic film covers become the electrostatic rechargeable, plate-shaped surface elements electromechanically over the retractors from the sterile and / or reinzuhaltenden Room pulled. The used foil tape is replaced by the Guide pulley preferably so guided that the room-side surface the cover consisting of at least one plastic film web the surface elements rolled up on the empty roll to the surface on the surface Particles like harmful Germs and the like be included by the plastic film itself. At the same time, on the surface elements brand new plastic film webs rolled up synchronously to the removal process.

The plastic films placed on the floor can additionally be provided with a room-side, moisture-absorbing anti-slip film, for example made of paper or cell fabric may be coated. All plastic films and possibly also coated with the anti-slip films plastic films are electrostatically charged positively or negatively after their arrangement on the plates. The plastic films may, for example, polyethylene (PE) or polypropylene (PP), whose thickness is for example 25 microns, exist. The anti-slip films have, for example, a thickness of 100 μm. The plastic films and the anti-slip paper-coated plastic films can be used according to embodiments of the invention in roll form or as a tear-off.

To at least one use of the sterile and / or pure space are clocked and, if necessary, computer controlled on the side walls and the floor arranged plastic films on which the located in the indoor air undesirable organic and / or inorganic particulate matter are deposited, Completely by unrolling or removing new plastic film surfaces for the sidewall and replace floor surfaces, wherein the plastic film surfaces exposed to the preceding contaminant over the Roll-up system from the sterile and / or to be kept critical Room to be spent. Once the roll full of used plastic film surfaces is, these are disposed of and replaced with empty rolls.

the inventive method is a combination of measures and the device system according to the invention based on a combination of features. These combinations include the interior arrangement of electrostatically chargeable, disc-shaped surface elements on vertical and horizontal room boundary elements such as side walls or if necessary, floors. To belongs Furthermore, the cover of the surface elements with brand new plastic films for the preparation of the sterile and / or keep pure Room continues to belong to the invention, the arrangement of an ionization chamber in the ceiling the room and a charging device for the elekt rostatisch chargeable, plate-shaped surface elements. The ring or rod ionizers arranged in the ionization chamber serve to ionize the one contained in the atmosphere of the room or only there released unwanted organic and / or inorganic, fine and / or finest particulates. Due to the electrostatic charge of the surface elements are the plastic films to a positive attachment brought. At the same time, the charge potential of the surface elements transferred to the plastic film cover. The ionized Particles are removed from the electrostatically charged plastic film cover attracted and deposited on it. With this technical instruction the problem of the invention is solved. The sterility and The purity standard becomes essential in these critical spaces improved. The frequent necessary Washing procedures for the room boundary elements become like side walls and floors of these rooms significantly reduced. In addition, omitted extensive filter technology measures for clean and sterile maintenance of these rooms.

The invention is with the following embodiment according to the 1 explained in more detail.

1 shows the device system according to the invention for a sterile and / or pure space 1 in open side view. The space 1 is schematically by a right and a left side wall 2 , a floor 3 and a blanket 4 as well as by not shown front and rear side walls substantially defined. The right and left sidewall 2 , the floor 3 and the ceiling 4 are shown with dashed lines indicated. On the side wall facing the interior 2 is an electrostatically chargeable, plate-shaped surface element 5 appropriate. The fasteners for attaching the surface element 5 on the side wall 2 are not shown. In the floor 3 is a slit-shaped suction chamber 6 for removal of the plastic film 7 and the floor 3 enclosed air provided. In the ceiling 4 of the room 1 is an ionization chamber 8th for the ionization of the ionized air to be introduced into the room. This can be arranged, for example, acted upon with compressed air, not shown rod or Ringionisator. For the electrostatic charge of the plate-shaped surface element 5 is in the sidewall 2 at least one charging bar 9 provided, which is powered by a charging generator, not shown, with high voltage.

For example, the ionized air transfers its negative charge potential (-) to the organic and / or inorganic particles present in the room atmosphere 12 (-). Because of the charge rod 9 applied, for example, positive charge potential 16 (+) of the surface elements 5 and the plastic film cover 15 become the ionized substance particles 12 (-) Of the example positively electrostatically charged surface element 5 (+) attracted and brought there for electrostatic deposition.

In the upper end of the side wall 2 is an interchangeable role 10 arranged with a brand new or sterile plastic film tape 11 is occupied. The plastic film tape 11 is over a pulley 13 on the surface element 5 and from its lower end about another Umlen sheave 13 to a removable empty roll 14 guided. The term "empty roll" is to be explained by the fact that in the start position of the method and device system according to the invention, this role in contrast to that with sterile plastic film tape 11 occupied role 10 not yet occupied with used plastic film tape. Once the surface element 5 completely with the plastic film 7 is covered, the rolling of the plastic film tape 11 from the role 10 stopped. The plastic film cover formed in this way 15 of the surface element 5 remains during the use of the space to be cleaned, for example germ-free atmosphere of the room 1 exposed. The plastic film cover 15 will after each use of space or exposure time of the plastic film cover 15 in the atmosphere of the room 1 completely on the empty roll 14 rolled up. At the same time the role 10 brand new or sterile plastic film tape 11 to form a new plastic film cover 15 formed with an interior-side exposure area. The renewal of the plastic film cover 15 usually takes place after the use of the room 1 , so discontinuously at intervals. Unrolling the sterile plastic film tape 11 from the role 10 and rolling up the used plastic film tape 11 with the contaminated exposure area occurs synchronously. All roles 10 , Empty rolls 14 and pulleys 13 are stored interchangeable at the free or outer ends in storage warehouses. The empty role 14 is for example equipped with an electromechanical drive unit, not shown, with which the unwinding and reeling are performed. The device system according to the invention also includes rollers arranged axially in series 10 , Pulleys 13 and empty rolls 14 , which can be connected to each other via connectors. In this way, such sterile and / or pure spaces can be completely covered with a Kunststofffolienabde 15 be lined, whose lengths or widths the lengths of the rollers 10 Coming with brand new, sterile plastic tape 11 are exceeded.

For the plastic film cover 15 of the floor 3 essentially the same device system is used. After that, the unwinding and unwinding device system can optionally in the lower part of the side wall 2 or in the area of the floor 3 be arranged.

The Invention is particularly suitable for sterile and / or pure Rooms with square or rectangular Floor space. If the spaces to be sterilized and / or kept contain a circular, semi-circular, oval-shaped, semi-oval or polygonal base , the invention with the innovative lining principle after Type of suspension and the transport of room curtains in a train and / or Guided slide system are to be realized. After all The invention can also be used with a plastic film block in the upper side wall area is attached, be realized.

1

sterile- and / or room to be kept

2

Space boundary element like sidewall

3

Space boundary element like floor

4

blanket

5

electrostatically Chargeable plate-shaped surface element

6

air exhausting chamber

7

Plastic film

8th

ionization chamber

9

charging bar

10

role with brand new, sterile plastic film tape

11

Plastic film band

12

ionized Particulate matter (-)

13

idler pulley

14

empty roll

15

Plastic film cover

16

Charge potential of the surface element ( 5 ) and the plastic cover ( 15 )

Claims (9)

Process for keeping sterile and / or clean rooms, characterized by the combination of the following measures: a) Provide from rolls containing brand new, sterile, electrostatically chargeable Plastic films, especially in band form, are occupied; b) Providing electrostatically chargeable, plate-shaped surface elements; c) Attaching the surface elements on vertical and possibly horizontal room delimitation elements such as side walls and Floors of sterile and / or kept rooms; d) covering the surface elements before using the sterile and / or clean rooms with electrostatic Rechargeable plastic films according to the sizing the surface elements from the roles under measure a) be unrolled; e) Suction of air, which is between the horizontal room delimitation element such as floor and the deposited thereon Plastic film is located; f) introducing one from the ceiling to the floor directed gaseous, ionized medium such as air in the sterile and / or kept pure Rooms during the Use of these spaces; and g) replacement of the plastic film covers after the Use of the sterile and / or rooms to be kept clean. Process according to claim 1, characterized by the combination of the following measures: h) covering the horizontal room delimiting element waiving a surface element directly on the floor of the sterile and / or clean room with plastic film tape; and i) exhausting air between the horizontal space restriction member and the plastic film cover. Process according to claims 1 and 2, characterized through the use of the measures in operating rooms, pathology spaces as well as medical, pharmacological, biological, food-chemical, chemical, scientific and engineering research and Development laboratories. Process according to claims 1 and 2, characterized through the use of the measures in production areas with special requirements for air purity such as chip production rooms. Process according to claims 1 and 2, characterized through the use of the measures in new or converted or retrofitted, sterile and / or kept pure Rooms. Device system for sterile and / or clean-keeping of rooms, characterized by the combination of the following features: aa) arrangement of at least one electrostatically chargeable, plate-shaped surface element ( 5 ) on a vertical and possibly horizontal space delimiting element ( 2 . 3 ) of a room to be sterilized and / or kept clean ( 1 ); bb) arrangement of at least one roller ( 10 ) with a brand new, sterile plastic film tape ( 11 ) at or in the upper end of a vertical room boundary element ( 2 ) like side wall of the room to be sterilized and / or kept clean ( 1 ); cc) arrangement of at least one empty roll ( 14 ), on which the with the plastic film strip ( 11 ) formed plastic film cover ( 15 ) after using the room ( 1 ) to roll up, at or in the lower end of the vertical Raumbegrenzungselementes as sidewall; dd) arrangement of at least one roll ( 10 ) with a brand new, sterile plastic film tape ( 11 ), at or in one end of a horizontal space delimiting element ( 3 ) such as floor of the room to be sterilized and / or kept clean ( 1 ); ee) arrangement of at least one empty roll ( 14 ), on which the with the plastic film strip ( 11 ) formed plastic film cover ( 15 ) after using the room ( 1 ) is to be rolled up, at or in the opposite end of the horizontal Raumbegrenzungselementes ( 3 ) such as floor of the room to be sterilized and / or kept clean ( 1 ); ff) Arrangement of an ionization chamber ( 8th ) in the ceiling ( 4 ) of the space to be sterilized and / or kept clean ( 1 ); and gg) arranging at least one charging rod ( 9 ) defined by the vertical space delineation element ( 2 ) such as side wall up to the electrostatically chargeable, plate-shaped surface element ( 5 ) is guided. Device system according to claim 6, characterized by the combination of the following features: hh) arrangement of at least one deflection roller ( 13 ) according to the role ( 10 ) for the detour of the surface element ( 5 ) to be applied plastic film tape ( 11 ) and / or ii) arrangement of at least one deflection roller ( 13 ) before the empty roll ( 14 ) for the detour of the surface element ( 5 ) to be pulled off and rolled up plastic film cover ( 15 ) after using the room ( 1 ). Device system according to claims 6 and 7, characterized by the combination of the following features: jj) end-side bearing of the virgin plastic film ( 7 ) occupied roles ( 10 ), the pulleys ( 13 ) and the empty rolls ( 14 ) in bearing elements, not shown, on or in the space delimiting elements ( 2 . 3 ) of the rooms to be sterilized and / or kept clean ( 1 ) are arranged; and kk) equipment of empty rolls ( 14 ) with drive units, not shown, such as electric motors for rolling up the band-shaped plastic film covers ( 15 ) after use of the rooms to be sterilized and / or kept clean ( 1 ). Device system according to claims 6 to 8, characterized by the combination of the following features: ll) arrangement of an air suction chamber ( 6 ) in the horizontal room boundary element ( 3 ) such as floor of the room to be sterilized and / or kept clean ( 1 ).