ES2973148T3 - Respiratory apparatus cleaning procedure and system - Google Patents

Abstract

A method for cleaning a respiratory system is proposed (112). The method comprises the following steps: a) providing the respiratory apparatus (112), in which the respiratory apparatus (112) has at least one gas-conducting element (180) with at least one warning whistle (182), in which that the warning whistle (182) is designed to emit a warning tone when the gas conducting element (180) is pressurized with a pressure that falls below a minimum pressure; b) applying at least one cleaning fluid (132, 154) to the respiratory apparatus (112); and c) washing the warning whistle (182) with at least one pressurized gas, wherein step c) is carried out at least partially simultaneously with step b) and wherein the washing is carried out in such a way that The pressurized gas flows outward through at least one pressurized gas. at least one outlet opening (184) of the warning whistle (182), so that the penetration of the cleaning liquid (132, 154) through the outlet opening (184) by the pressurized gas coming out. (111) which is configured to carry out the method. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Respiratory apparatus cleaning procedure and system

Technical field

The invention relates to a cleaning method and system for cleaning respiratory devices. Cleaning procedures and systems of the type mentioned can generally be used to clean breathing apparatus or components thereof, for example breathing apparatus for rescue personnel such as firefighters, technical aid organizations or paramedics, breathing apparatus for divers or in general people in hostile or critical work environments, as well as for armed forces and security forces such as police officers. The proposed devices and processes can also be used for respiratory devices in the medical field, such as respiratory masks for oxygen supply and in operations. Other areas of application are also conceivable.

Technical background

Respiratory devices, such as respirators or regulators, are often part of the personal protective equipment of, for example, rescue workers, armed forces or security forces. A large number of respiratory devices for different purposes are known in the state of the art. For example, emergency services, such as firefighters, use respirators with filters to remove harmful components from the air they inhale. In many cases, however, a so-called regulator is used as an alternative or in addition to a filter, through which the user can be ventilated with a breathing gas, such as compressed air. Regulators, which are often called respiratory regulators, generally allow a user to breathe from a pressurized gas cylinder or other pressurized gas connection and thus remain underwater or in another non-breathable or toxic atmosphere, for example. For this purpose, the pressurized gas, for example compressed air, from the pressurized gas connection is adjusted by the regulator to a pressure prevailing in the user's working environment.

As a general rule, breathing apparatus or its components should be cleaned, disinfected, dried, tested and, if necessary, repaired and packaged after each use. The goal of cleaning is to remove all dirt resulting from use or storage so that the respiratory apparatus can be made available macroscopically clean and hygienically perfect, for example, for subsequent reprocessing steps. Generally, the same requirements also apply to components of respiratory devices, such as attachments and accessories of respiratory masks, such as filters or regulators.

In many cases, respiratory devices, such as respiratory masks and their accessories, are cleaned by hand or washed in modified washing machines using protective bags and/or adapters. For example, from EP 0935 687 B1 a washing machine is generally known which has a bleach container with a drum. One of the drum shells has a curved structure directed towards the inside of the drum, with holes arranged in the corner contours of the edges of the curvature directed towards the outside of the drum. These washers can be used to clean first responders' equipment especially gently.

From document EP 1088928 A1 a fastening system for respiratory masks in a clothing treatment machine is known. The fastening system has a support bracket that is arranged to rotate along a drum of the clothing treatment machine and to which the respiratory masks can be connected.

Devices for treating protective suits are known from document DE 200 03 743 U1 and document DE 298 22 172 U1. Clothes hangers are used that include flexible air outlet nozzles. Each of the hangers is attached to a rotating device. It is generally difficult or impossible to clean breathing apparatus with the devices shown.

A device for cleaning respiratory masks is known from document DE 102005 033 618 B3. The device comprises a closable housing and at least one support arranged in a seat for at least one respiratory mask. An arrangement for the mouthpieces and a brush arrangement are also provided, brushing thereof taking place by means of the movement of the respiratory masks. However, it is not possible to customize and clean the mask accessories with the disclosed device. Furthermore, with the disclosed device it is not possible to clean the gas-conducting elements, such as regulators. Also from DE 200 03 744 U1 a device for cleaning, disinfecting and drying respiratory masks is known, which has a support frame with an associated nozzle system and individual treatment stations. This device is also not suitable for cleaning gas-conducting elements and accessories.

A cleaning device for compressed air breathing apparatus is known from DE 10 2007 009 936 A1. It has a receiving chamber limited by a protective grille as well as rotating nozzle holders. The nozzle holders are located outside the protective grille. However, a disadvantage of the device shown is that the cleaning liquid can penetrate into the gas-conducting areas.

Cleaning sensitive components of respiratory devices, such as regulators, is usually done manually. If necessary, manual cleaning can be facilitated by placing them in ultrasonic cleaning devices. A method and a device for cleaning regulators are known from document DE 10 2007 012 768 B4. The items to be cleaned are placed in holders on a rotating element and immersed several times in a liquid bath containing cleaning liquid, disinfectant liquid and rinsing liquid. Regulators are first pressurized with compressed air to create a seal between the valve and hose connection, and then immersed in the liquid bath. However, the disadvantage of these immersion procedures is that complex supports with corresponding actuators are required to ensure that the cleaning liquid is removed from the various cavities after cleaning by appropriate movements.

DE 10020835 A1 describes a device for treating respiratory masks. A bracket for attaching respiratory masks is provided, wherein the respiratory masks are attached to the bracket by connecting the respiratory apparatus. Furthermore, it is described that a collecting device for collecting the treatment agents, as well as a pump for supplying the treatment agents, is provided in a cabin of the apparatus.

US 3,881,503 A discloses a device for washing and decontaminating anesthesia equipment. A nozzle system is provided through which high pressure jets of water can be sprayed onto the items to be cleaned.

A device for cleaning respiratory masks is described in document DE 1174 169 B. A rotating tubular frame is provided with a housing, in which the masks to be cleaned are held by means of brackets. Using a frame, the respiratory masks are moved in a tub with a rotating movement through a bath of cleaning liquid.

WO 2011/144518 A2 describes a cleaning device for cleaning respiratory devices. The cleaning device comprises at least one cleaning chamber, for housing at least one respiratory apparatus, and at least one fluid device for applying at least one cleaning fluid to the respiratory apparatus. The cleaning device also has at least one charging device with at least one pressure connection. The pressure connection can be connected to at least one gas-conducting element of the respiratory apparatus. The charging device is configured to apply a pressurized gas to the gas conducting element. This construction is particularly suitable for preventing moisture from penetrating the gas-carrying elements, as this moisture can freeze during use, for example by expanding compressed air, which could lead to interruptions in a vital supply of breathing air.

DE 102018204763 A1 describes a method for cleaning at least one respiratory apparatus, wherein the respiratory apparatus comprises at least one respiratory mask. The method comprises at least one pre-cleaning step, the pre-cleaning step comprising the following sub-steps: a) providing the respiratory apparatus in an externally contaminated state; b) providing at least one support for the respiratory mask, the support having at least one curved sealing surface; c) securing the respiratory mask in the holder such that at least one sealing lip of the respiratory mask rests on the curved sealing surface and seals the interior of the respiratory mask; d) inserting the support with the respiratory mask into a pre-cleaning chamber; and e) applying at least one pre-cleaning fluid to an outer side of the respiratory mask in the pre-cleaning chamber. Furthermore, the method may comprise at least one main cleaning step performed after the precleaning step, which has the following substeps: i) separating the respiratory mask from the support; ii) introducing the respiratory mask into a main cleaning chamber; and iii) applying at least one primary cleaning fluid to the respiratory mask, including an interior side of the respiratory mask facing inward. Also disclosed are a device for cleaning at least one respiratory apparatus, a pre-cleaning device and a cleaning system.

Despite the benefits that have been and are being achieved with the devices and procedures described above, numerous technical challenges remain. One of the challenges is that modern respirators often have so-called "warning whistles." Possible constructions of such warning whistles, which can also be used in the context of the present invention, are described, for example, in DE 1133251 B or also in DE 23 51 718 C3. In general, these warning whistles are designed to warn the user if the pressure in the respiratory system drops below a specified minimum. This minimum pressure is usually selected so that the user can safely withdraw. One of the problems with this type of design is that the warning whistle itself usually provides an opening through which cleaning fluid can enter the gas-conducting element.

Furthermore, warning whistles generally comprise at least one valve and at least one signaling body, whereby the valve generally remains closed as long as the minimum pressure is exceeded. However, if the pressure drops below the minimum pressure, gas, for example compressed air, can reach the signaling body and activate the warning tone. In relation to the pressurization described above during the cleaning process, a technical challenge is that the pressurization must generally be carried out with sufficient pressure so that the warning whistle valve is firmly closed by the pressure, such that no liquid from cleaning can pass through the valve. In many cases, this minimum pressure is greater than 50 bars, for example 60 bars or even 70 bars. Consequently, pressurization must normally be carried out with considerable pressure to safely close the warning whistle valve. However, these high pressures are usually associated with the corresponding safety measures, which are structurally complex.

Another disadvantage is that the above-described two-part construction of the warning whistle, with valve and signaling body, is usually provided with at least one cavity which can be filled with cleaning liquid during cleaning, such as example water. If the pressurization is removed after cleaning, the warning whistle valve opens in many cases and the cleaning fluid can now enter through the open valve into other components of the gas-conducting element, such as the breathing system. .

In some types of construction, the warning whistle is also structurally coupled to other components of the gas conducting element. For example, the warning whistle and at least one pressure measuring device, such as a pressure gauge or a master pressure gauge, may form a single unit. This drive may, for example, be fully or partially encapsulated with a rubber shield, which often does not fit tightly to the drive casing. Consequently, the cleaning liquid can penetrate into a gap between the rubber protection and the pressure gauge during cleaning, from there it can reach the outlet opening of the warning whistle and can penetrate the gas-conducting element, for example in the hose system, through the outlet opening and the warning whistle valve.

Objective of the invention

Therefore, it would be desirable to provide a cleaning method and system for cleaning respiratory apparatus that at least largely avoids the disadvantages of known methods and systems of the type mentioned. In particular, the penetration of the cleaning liquid into the gas-conducting elements must be prevented in a structurally simple manner, at least to a large extent.

Overview of the invention

This objective is addressed by a cleaning procedure and system with the characteristics of the independent patent claims. Advantageous developments are shown in the dependent claims, which can be carried out individually or in any combination.

Hereinafter, the terms "have", "present", "understand" or "include" or any grammatical variation thereof are used non-exclusively. Consequently, these terms can refer both to situations in which, in addition to the characteristics introduced by these terms, no other characteristics are present, and to situations in which one or more additional characteristics are present. For example, the expression "A has B", "A presents B", "A comprises B" or "A includes B" can refer either to the situation in which, apart from B, no other element is present in A ( that is, to a situation in which A consists exclusively of B) and to the situation in which, in addition to B, one or more elements are present in A, for example element C, elements C and D or even others items.

Furthermore, it is noted that the terms "at least one" and "one or more", as well as grammatical variations of these terms, when used in relation to one or more elements or characteristics and are intended to express that the element or characteristic can be provided once or more than once, they are generally used only once, for example when the feature or element is first introduced. If the feature or element is later mentioned again, the corresponding term "at least one" or "one or more" is generally no longer used, without limiting the possibility that the feature or element is provided one or more times.

Furthermore, the terms "preferably", "in particular", "for example" or similar terms are used below in connection with optional features without thereby limiting alternative embodiments. Therefore, the features introduced by these terms are optional features, and these features are not intended to limit the scope of protection of the claims and, in particular, the independent claims. Thus, as the skilled person will recognize, the invention can also be carried out using other configurations. Likewise, the features introduced by "in an embodiment of the invention" or by "in an example of the invention" are intended as optional features, and are not intended to limit alternative embodiments or the scope of protection of the independent claims. . Furthermore, these introductory expressions are intended to leave intact all the possibilities of combining the traits thus introduced with other traits, whether optional or non-optional traits.

In a first aspect, a procedure is proposed for cleaning at least one respiratory apparatus. The procedure comprises the steps described in more detail below. Unless otherwise specified, the steps can be performed in the order listed. However, a different sequence is also possible in principle. Furthermore, two or more of the aforementioned process steps may be carried out overlapping or simultaneously. Furthermore, one or several, or even all of the aforementioned process steps can be performed once or several times. In addition to the steps mentioned, the method may comprise other steps not mentioned. The procedure consists of the following steps:

a) Provide the respiratory apparatus, the respiratory apparatus featuring at least one gas-conducting member with at least one warning whistle, wherein the warning whistle is configured to emit a warning tone when the gas-conducting member is pressurized with at least one gas-conducting member. minus a pressure that falls below a minimum pressure;

b) Application of at least one cleaning liquid to the respiratory system;

c) Rinsing the warning whistle with at least one pressurized gas, wherein step c) is carried out at least partially at the same time as step b) and wherein the rinsing is carried out in such a way that the pressurized gas flows outward through at least one outlet opening of the warning whistle, such that, due to the exiting pressurized gas, the penetration of cleaning liquid through the outlet opening is at least largely prevented.

The term "cleaning" as used herein is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a process in which adhering macroscopic, or even microscopic, contaminants are removed from the articles to be cleaned and/or in which such contaminants are at least partially removed. A disinfectant action can also optionally be carried out.

The term "respiratory system," as used herein, is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a device that is suitably arranged to protect the airways of a user from harmful influences and/or to supply the airways of the user with one or more respiratory gases. For example, the respiratory apparatus may be a device configured to filter all or part of the air from the environment and/or to supply breathing gas to at least one user. These respiratory devices can be complete respiratory devices, ready for use, or components thereof, so in what follows no distinction is made between respiratory devices and their components.

The respiratory system has at least one gas-conducting element. The term "gas conducting element", as used herein, is a broad term that should be given its ordinary and customary meaning as understood by one skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to an element or a combination of elements that may be exposed to a respirable gas or otherwise come into contact with the respirable gas when the respiratory apparatus is used by a human user or animal. In particular, it may be a regulator and/or a breathing tube with at least one valve. In particular, the gas-conducting element may be an element having at least one hose and/or at least another type of gas-conducting device with an interior and/or at least one valve, to which normally a gas-conducting device may not be applied. cleaning fluid. For example, the gas-conducting element may be an area of the respiratory apparatus pressurized above the normal pressure during operation, for example a gas-conducting area of a respiratory apparatus above a normal pressure, for example above 1 .5 bars, in particular above 2 bars. In particular, it may be a breathing gas conductive zone of a regulator, whereby the regulator may be single or multi-stage. The gas conducting element can, for example, form part of a first stage and/or a second stage and/or possibly other stages of the regulator or even a complete regulator. For example, the gas-conducting member may be a region between a hose connection and a valve of a regulator, or the gas-conducting member may comprise such a region.

The gas-conducting element may, for example, have at least one hose and/or at least one pipe. In particular, the gas conducting element may have at least one fully or partially sealed lumen that can accommodate pressurized gas. Furthermore, the at least one gas-conducting element may have at least one connection, for example at least one connection for connecting at least one pressurized gas container and/or at least one pressurized gas conduit. Alternatively or additionally, the at least one connection may also be connected to at least one nozzle and/or to at least one regulator, and/or the regulator and/or the nozzle may form part of the gas conductive element. Furthermore, the at least one connection may also comprise at least one connection for a tool, so that, for example, at least one pressurized gas gun, such as a compressed air gun, may also be connected to the connection or It may be a component of the at least one gas-conducting element.

Furthermore, the gas conducting element may also have, for example, at least one pressure gauge, also called master pressure gauge, or may be connected to the at least one pressure gauge, for example via the at least one connection. The at least one pressure gauge may, for example, be configured to detect at least one internal pressure, for example the high pressure and/or the medium pressure described in more detail below. The pressure gauge can be configured fully or partially as a stand-alone component or can also be fully or partially combined with other components. For example, as explained above, the at least one warning whistle may also be fully or partially integrated into the at least one pressure gauge and/or combined with the at least one pressure gauge. These elements can also be formed separately.

In particular, the gas-conducting element may have several zones, in particular several interior zones, which may be separated from each other, for example by one or more valves and/or pressure regulators. In particular, the gas conducting element can have at least one high pressure zone and, optionally, also at least one medium pressure zone, whereby the medium pressure zone can be connected, for example, to the pressure zone high through at least one pressure reducer. For example, the gas-conducting element can be connected to at least one pressurized gas storage tank in the high pressure range during operation of the respiratory apparatus, so that, for example, pressures of at least 200 can prevail here. bars or even at least 300 bars. In the medium pressure range, for example, 4 to 12 bars may prevail, or in general pressures lower than 40 bars, in particular lower than 20 bars. The warning whistle described in more detail below may have in particular, as will be explained in more detail, at least one valve and at least one signaling body, in particular an acoustic signaling body or whistle body, the valve being connected to the high pressure zone, for example, and thus may be subjected to an internal pressure of the high pressure zone. This means that the internal pressure existing in the high pressure zone can be used, for example, to control the position of the warning whistle valve.

In addition to the at least one gas-conducting element, the respiratory apparatus may also have one or more additional components that can be connected to the gas-conducting element or that can also, for example, be cleaned separately, for example can be housed separately in at least a cleaning basket. For example, the respiratory apparatus may include at least one respiratory protection mask, also known as a respiratory mask. The term "respirator," as used herein, is a broad term that should be given its ordinary and common meaning as understood by one skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a device that is a component of a respiratory apparatus and that is adapted to fully or partially cover the face of a user, in particular an area of the mouth and/or an area of the nose. In particular, the cover may serve to protect the user's respiratory tract from harmful substances and/or to introduce respiratory gases into the respiratory tract and/or to expel respiratory gases from the respiratory tract. The respirator may also cover other parts of the user's face and/or head, such as the eyes. Accordingly, the respiratory protection mask may also have at least one transparent viewing window. The respiratory protection mask may also have at least one seal to seal an interior space of the respiratory protection mask from an exterior space, whereby the interior space is delimited by the respiratory protection mask itself, the user's head and the seal of the respiratory protection mask, for example, when the respiratory protection mask is in use. In particular, the respiratory protection mask may be convex, forming at least one cavity partially sealed by the respiratory protection mask, the edges of which are formed, for example, by the at least one gasket. In particular, the respiratory protection mask may have a preferably fully or partially flexible wall that covers the mouth and nose and, optionally, other areas of the face, such as the eyes. In particular, the gasket may have at least one sealing lip that seals the respiratory protection mask against the face, so that the interior space in question forms a sealed area between the face and the respiratory protection mask. Furthermore, as will be explained in more detail below, the respiratory protection mask may have at least one attachment for securing it to the user's head, for example at least one strap, at least one attachment band or at least one attachment formed by several bands, often called a strap or spider. The respiratory mask may, for example, have at least one opening and may, for example, be configured to allow a supply of breathing air or gas. For example, the respirator may have at least one thread for connecting a breathing gas supply. The respiratory protection mask may also have at least one exhalation valve, for example. The respiratory protection mask may, for example, be made wholly or partially of a flexible material, in particular of at least one elastomeric material, for example rubber and/or silicone. Furthermore, the respiratory apparatus may also have one or more small parts, which may, for example, be housed in at least one small parts basket of the cleaning basket.

The term "warning whistle," as used herein, is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a device that is arranged to emit at least one acoustic warning signal when one or more specific conditions occur.

As explained above, the warning whistle is configured to emit a warning tone when the gas conducting member is pressurized to a pressure that is at least below a minimum pressure. In particular, the warning whistle may be a device to which one or more pressures can be applied and which emits at least one acoustic warning signal if one or more conditions are met with respect to this at least one pressure. In particular, the warning whistle may be configured to emit the at least one acoustic warning signal when the at least one pressure applied to the warning whistle reaches at least one threshold value or falls below the at least one threshold value. This threshold value is also called minimum pressure, and one or more threshold values may be provided. The minimum pressure can be fixed or also adjustable, for example. The warning signal may also be issued in an open, closed or semi-open pressure range of the at least one pressure, for example, if the applied pressure is within the range, but no signal if the pressure is outside the range.

The warning whistle has at least one exit opening. This outlet opening can open towards an area surrounding the gas-conducting element, for example directly or by interposing one or more gas-conducting areas, such as tubes. For example, the warning whistle may be formed on an extension of the gas-conducting element, such as on an extension of the pressure gauge, or also on a rigid or flexible connecting piece. The outlet opening may be formed, for example, at the end of this extension.

The warning whistle may further comprise at least one valve and at least one signaling body. For example, at least one cavity may be formed between the valve and the signaling body. The signaling body may comprise at least one element that can generate the at least one acoustic signal, for example when the at least one pressurized gas flows through it or around it. This at least one element may, for example, have at least one cutting edge or edge against which the pressurized gas can flow, so that acoustic vibrations can occur in the pressurized gas and/or in the cutting edge. The at least one valve can, for example, be connected to at least one hydraulic surface with at least one interior space of the gas-conducting element, so that, for example, an internal pressure in the interior space, which can, for example, , being a high pressure zone of the gas conducting element, can determine at least one position of the valve. For example, the valve may be configured to control a flow of gas into or toward the signaling body. This gas flow can, for example, branch from the internal pressure inside, or it can be an independent gas flow. For example, depending on its position, the valve can close or open an opening through which pressurized gas can enter the cavity from the inside. Alternatively or additionally, however, the cavity may also be supplied separately with compressed gas, depending on the position of the valve, for example from a separate supply and/or through a separate compressed gas supply. This means that the same pressurized gas or different pressurized gases can be applied to the inside of the gas-conducting element and the cavity between the valve and the signaling body.

In general, for possible configurations of the warning whistle, reference can be made, for example, to the aforementioned documents DE 1 133 251 B or DE 23 51 718 C3 to which reference can be made. However, in principle another configuration is also possible, as is known to those skilled in the art.

In step b), as described above, at least one cleaning fluid is applied to the respiratory apparatus. In particular, it may be a purely external application, so that, for example, only the outer surfaces of the respiratory system are exposed to the cleaning liquid. In particular, the application may take place in at least one cleaning device, for example in a cleaning chamber of the cleaning device, as will be explained in more detail below. However, it is also possible to apply a cleaning chamber without using a cleaning device, for example in a sink.

The term "cleaning device", as used herein, is a broad term that should be given its ordinary and common meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a device made to remove macroscopic, or even microscopic, adhering impurities from articles to be cleaned or to at least partially remove such impurities. A disinfectant action can also optionally be carried out. As will be explained in more detail below, the cleaning device can be realized in particular as a dishwasher, especially as a dishwashing machine. The dishwasher can be designed, for example, as a single-chamber dishwasher, in particular as a commercial single-chamber dishwasher with a multi-circuit washing system, as a front-door dishwasher or as a hood dishwasher, in particular as a push-in dishwasher. Water-change dishwashers can also be used, particularly so-called single-circuit systems. As an alternative or in addition to dishwashers, other types of cleaning equipment can also be used.

As will be explained later, the cleaning device may have at least one cleaning chamber. The term "cleaning chamber" as used herein is a broad term that should be given its ordinary and customary meaning as understood by one skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a fully or partially closed chamber within which the cleaning process may be carried out fully or partially. In particular, the cleaning chamber may have at least one housing that fully or partially encloses the cleaning chamber. There can be a single cleaning chamber or, in principle, also several cleaning chambers, for example arranged sequentially. The cleaning chamber may, for example, have at least one opening for loading the articles to be cleaned into the cleaning chamber. For example, it may be an opening with a flap arranged on a front side of the cleaning chamber and/or on an upper side of the cleaning chamber. Alternatively, hoods can also be used to close the cleaning chamber, for example in so-called hood dishwashers or pull-through dishwashers. In principle, other configurations are also possible.

The cleaning chamber, as will also be explained in more detail below, may be configured, for example, to accommodate at least one cleaning basket. To this end, the cleaning chamber may have, for example, at least one support for the basket, for example, at least one rail into which the cleaning basket can be inserted, and/or at least one holding or lifting device. transport by which the basket can be transported into the cleaning chamber, out of the cleaning chamber or through the cleaning chamber.

The cleaning device may further comprise at least one loading device for applying the at least one cleaning fluid to the respiratory apparatus. In particular, the loading device may be configured to apply the at least one cleaning fluid in the cleaning chamber to the respiratory apparatus. The charging device may, for example, have at least one tank for containing the at least one cleaning liquid and, for example, one or more nozzles. In particular, the loading device may, for example, have at least two nozzle arms housed in the cleaning chamber. Additionally, the charging device may have other elements, such as one or more pumps for transporting the cleaning liquid to the at least one nozzle and to the one or more pipes. In particular, the loading device can be controlled by means of at least one control of the cleaning device.

The term "charging device" as used herein is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term can refer, without limitation, in particular to a basically arbitrary device by means of which the at least one cleaning fluid, in particular the at least one cleaning liquid, can be applied to the cleaning material within the cleaning chamber. cleaning. The loading device has, for example, at least one nozzle system with at least one nozzle, for example with one or more nozzle arms, which can be arranged above and/or below the articles to be cleaned. Furthermore, the charging device may comprise at least one pump and at least one piping system for supplying cleaning liquid to the nozzle system. For example, a nozzle system and a piping system for supplying cleaning fluid from a reservoir may be provided, as well as at least one corresponding pump. Alternatively or additionally, at least one nozzle system may be fed directly from a supply line, for example, without the need for a pump. In particular, the cleaning device can be designed as a cleaning device with two tanks, a washing tank and a rinsing tank. Accordingly, the spray device may comprise, in particular, a washing system and a rinsing system, wherein, for example, the washing system may comprise the washing tank and a washing nozzle system, as well as a flushing pipe system and a flushing pump, for example a circulation pump. The rinse system may, for example, have a rinse tank separate from the wash tank, as well as a rinse nozzle system, a rinse pipe system and, optionally, a rinse pump. The rinse nozzle system and the wash nozzle system can, for example, be completely or partially separated. However, optionally, these nozzle systems can also be combined in whole or in part, for example in a common housing.

As explained above, the charging device may in particular have at least one nozzle. In particular, this at least one nozzle may comprise at least one nozzle selected from the group consisting of: a spray nozzle; a rinse nozzle; a spray arm, in particular a rotating spray arm; a nozzle that can operate in recirculation mode.

The term "cleaning fluid" as used herein is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term can refer, without limitation, in particular to a liquid which, when it comes into contact with the articles to be cleaned, can develop a cleaning effect. Therefore, hereinafter the term "cleaning fluid" will also be used instead of "cleaning liquid", without limiting the use of other fluid media. In particular, the cleaning liquid may comprise an aqueous liquid, for example water and/or water with one or more additives, for example with one or more concentrated detergents and/or rinse aids and/or disinfectants. The cleaning liquid can be applied to the respiratory system in such a way that a single cleaning liquid is used or in a way that a combination of several cleaning liquids is used. If several cleaning liquids are supplied, the different cleaning liquids can be applied simultaneously or sequentially. For example, the cleaning basket with the respiratory apparatus can remain stationary within a cleaning chamber of a cleaning device and be subjected to the various cleaning liquids and/or cleaning fluids one after another.

As explained above, the cleaning fluid may comprise, in particular, at least one cleaning fluid selected from the group consisting of: an aqueous cleaning fluid; a cleaning fluid with at least one detergent solution; a cleaning fluid with at least one rinse aid; a cleaning fluid with at least one disinfectant; a rinse fluid; demineralized water; a heated cleaning fluid, in particular a cleaning fluid heated to a temperature of 30°C to 70°C and, particularly preferably, 60°C.

"Contact with the cleaning fluid" can generally be understood as any contact of the cleaning material, in this case the respiratory system, with the at least one cleaning fluid, in particular external contact. It may be a direct application, for example by spraying, dripping, jetting or a combination of the above procedures and/or other direct application procedures, in which the cleaning liquid is applied directly to the item to be cleaned, for example the respiratory device and/or respiratory mask. This type of application can be used in particular with a fixed cleaning chamber. Alternatively or additionally, the cleaning chamber can also be supplied in such a way that it is completely or partially filled with cleaning liquid, so that the objects to be cleaned that are kept in the cleaning chamber come into contact with the cleaning liquid at least a position of the cleaning chamber. This charge configuration can be used in particular when the cleaning chamber is designed as a mobile cleaning chamber, for example in the shape of a drum. Combinations of the aforementioned application types and/or other application types are also possible. Regardless of whether the cleaning chamber is rigid or movable, the cleaning liquid can be applied simply by applying the cleaning liquid once to the item to be cleaned, for example, the respiratory apparatus and/or the respiratory mask. However, alternatively or additionally, cleaning can also be carried out in recirculation mode by applying cleaning liquid several times to the items to be cleaned. These systems and circulation circuits are known, for example, in conventional dishwashers.

The cleaning device may, for example, be configured to carry out at least one cleaning program by the loading device, for example controlled by at least one control of the cleaning device, in which the article to be cleaned, for example the at least one cleaning basket with the respiratory apparatus, is kept stationary in the cleaning chamber and the cleaning liquid is successively applied in different ways in one or more cleaning steps of the cleaning program, for example first in at least one washing step with the at least one washing liquid and in at least one rinsing step with the at least one rinsing liquid. Furthermore, at least one drying step may be provided which, for example, may take place in the at least one cleaning chamber after applying the cleaning liquid when the articles to be cleaned are stationary. Accordingly, the cleaning device can in particular be configured as an automatic program machine. Alternatively, however, the cleaning device may also be designed as a transport cleaning device, for example, in which the cleaning basket with the respiratory apparatus is transported through one or more cleaning zones.

The term "deposit" as used herein is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a fully or partially closed container that is made to contain at least one fluid, in particular at least one liquid. As explained above, the at least one tank may have, for example, at least one washing tank. This at least one washing tank can, for example, be arranged on a base of the cleaning chamber or also be fluidically connected to a base of the cleaning chamber, so that the cleaning fluid can flow from the chamber. cleaning to the wash tank. For example, the washing tank may be separated from the cleaning chamber by at least one screen. In addition to the at least one wash tank, the at least one tank may also comprise one or more additional tanks. For example, the at least one tank may have at least one rinse tank, which may be separate from the wash tank. In the at least one rinse tank, for example, at least one rinse fluid, also known as clear rinse fluid, can be processed, for example tempered, while a washing step is still running in the cleaning chamber. . The rinse tank may include at least one boiler, for example.

In step c), the warning whistle is cleared with at least one pressurized gas. This step is carried out at least partially simultaneously, that is, at least partially overlapping in time or even completely simultaneous, with the application of the at least one cleaning fluid to the respiratory system. Furthermore, the rinsing is carried out in such a way that the pressurized gas flows out through at least one outlet opening of the warning whistle, such that due to the escaping pressurized gas it is prevented, at least in To a large extent, the entry of cleaning liquid through the outlet opening.

The term "pressurized gas" as used herein is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to any gas having a pressure greater than normal pressure, that is, a pressure greater than 1 bar. In particular, it may be a pressure greater than 1.5 bars, especially greater than 2 bars, and particularly preferably greater than 3 bars. In particular, the pressurized gas may be air or comprise air, that is, compressed air. However, other gases, especially inert gases, such as nitrogen, can also be used.

As explained above, the rinsing is carried out in such a way that the pressurized gas flows out through at least one outlet opening of the warning whistle, so that due to the escaping pressurized gas, , at least to a large extent, the entry of cleaning liquid through the outlet opening. For example, pressurized gas, controlled for example by the warning whistle valve, may flow into the cavity between the valve and the signaling body and exit there through the outlet opening, so that the flow prevents at least largely the inflow of cleaning fluid, for example. For example, a pressure, in particular a static pressure, of the pressurized gas at the outlet opening may be greater than 1 bar, in particular greater than 1.5 bars, particularly preferably at least 2 bars, e.g. from 2 to 6 bars. The expression "is prevented, at least to a large extent" can be understood in particular as meaning that no more than 10% of the cleaning liquid impinging on the outlet opening can penetrate the outlet opening, preferably no more than 5%, in particular no more than 1% or even no more than 0.5%. In particular, the term "is prevented, at least to a large extent" may mean that no cleaning liquid is visually detected in the area of the outlet opening.

Flushing the warning whistle with at least one pressurized gas can be carried out in several ways. For example, as described above, at least one interior of the gas conducting element may optionally be supplied during application of the at least one cleaning fluid, for example with the at least one pressurized gas. For example, it may be a high pressure or medium pressure range of the gas conducting element. At least some of this pressurized gas can be diverted, for example, as a flow to flush the warning whistle. For example, as explained above, the warning whistle valve may be permeable to this flow or regulate the flow in such a way that some of the pressurized gas can be diverted. Alternatively or in addition to the optional diversion of the pressurized gas flow from an internal pressure, a separate rinsing can also take place. Therefore, the pressurized gas used to flush the warning whistle may, for example, be independent of the pressurized gas that may optionally be fed to the interior of the gas-conducting element during application of the at least one cleaning fluid. . However, the warning whistle valve, which can regulate the discharge of the warning whistle, can be controlled by a pressure in the at least one interior.

The method may further comprise the following step: d) covering the exit opening of the warning whistle with at least one covering element, step d) being carried out at least partially before steps b) and c), and wherein During coating the outlet opening is at least partially closed so that the pressurized gas can continue to flow through the at least partially covered outlet opening.

The term "cover," as used herein, is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a process in which at least one element or at least one area is fully or partially enclosed by at least one cover element, wherein the cover element completely or partially overlaps and/or fills the element or area. In particular, at least one opening may be fully or partially closed by the cover element. The term "cover element" should be interpreted accordingly, as will be understood by those skilled in the art. Accordingly, the term may refer in particular to an element or a device that is configured to perform or ensure "coverage" in the sense of the above understanding. Examples of roof elements are described in more detail below.

In particular, the coating can be carried out in such a way that the at least one opening, in the present case the at least one exit opening of the warning whistle, is at least partially closed for the passage of at least one medium in at least one direction of passage. The coating may take the form of a valve so that, for example, the medium can continue to pass fully or partially in one direction, but is prevented in the opposite direction. However, the coating must be carried out in such a way that the at least one pressurized gas can still flow at least partially out of the covered outlet opening, i.e. can escape from the warning whistle, so that the rinsing in step c ) is not interrupted completely. This can be done in several ways. For example, the at least one cover element can only partially close the at least one outlet opening, so that at least part of the opening is free for the pressurized rinse gas to exit. Alternatively or additionally, as explained above, the at least one cover element may also have valve properties, so that the pressurized gas can escape from the warning whistle, but enter in the opposite direction, for example the inlet of cleaning fluid, is prevented at least to a large extent. This can be done, for example, by attaching a flexible cover element to the outlet opening from the outside, whereby the outlet opening is fully or partially closed, whereby the flexible cover element can be fully or partially moved and /or raised from the outlet opening, for example by the escape of pressurized gas, such that the flow of pressurized gas can pass through the outlet opening.

Accordingly, the cover element may be configured to be flexible in particular. In step c), for example, the escaping pressurized gas may at least partially displace the cover element of the outlet opening, for example by lifting it outwards. In this way, as explained above, a valve property of the cover element can be produced that allows media, in particular pressurized gas, to escape from the outlet opening, but that at least largely prevents that the media, in particular the cleaning fluid, enter the warning whistle. In general, the cover member may sit over the outlet opening as a flexible valve.

The cover element may have generally elastic properties. Furthermore, the cover element may at least partially enclose the warning whistle. For example, the cover element may be designed wholly or partially as a band that wholly or partially encloses the warning whistle in the area of the at least one exit opening. Alternatively or additionally, as will be explained in more detail below, the cover element may be designed wholly or partially as a clamp, which wholly or partially encloses the warning whistle in the area of the outlet opening.

In particular, the cover element may comprise at least one element selected from the group consisting of: an elastic band, in particular a rubber band; a sealing strip, in particular a sealing strip selected from the group consisting of an elastic sealing strip and a self-adhering sealing strip; a clamp, in particular a clamp selected from the group consisting of a metal clamp and a plastic clamp, in particular a clamp with at least one sealing element, in particular a sealing surface or gasket that can be sealed in the opening exit.

As explained above, in step c) the warning whistle is cleared with at least one pressurized gas. In addition to the at least one warning whistle, one or more parts of the gas-conducting element can be rinsed with pressurized gas. Thus, in particular during step c), that is, at least partially simultaneously with the rinsing of the warning whistle, one or more parts of the gas-conducting element can be rinsed with pressurized gas, in particular one or more hoses. .

As explained above, the pressurized gas may comprise, in particular, compressed air. Accordingly, the method can be carried out in particular with a charging device with a source of compressed air, for example a source of compressed air that is provided on site and/or that is provided in a cleaning device and that is connected to the element gas conductor to carry out step c).

As explained above, the warning whistle is designed to emit a warning tone when the gas conducting member is pressurized to a pressure less than a minimum pressure. For example, the warning whistle may generally emit the warning tone at pressures lower than the minimum pressure or also in at least one pressure range that is below the minimum pressure. The minimum pressure of the warning whistle may be, for example, at least 50 bars, in particular at least 100 bars, especially in a range of 100 bars to 300 bars.

The pressurized gas may have a rinsing pressure lower than the minimum pressure, in particular during rinsing in step c). Therefore, high pressure pressurization is not necessary. In particular, the flushing pressure can range between 1 bar and 12 bars.

As explained above, the warning whistle may in particular have at least one valve and at least one signaling body. For example, the valve may be pressurized with at least an internal pressure of the gas conducting member. For example, this internal pressure may be a pressure prevailing in at least one interior of the gas-conducting element. For example, it may be a pressure in at least one high pressure range and/or in at least one medium pressure range. For example, the valve can be configured so that an internal pressure inside can control the position of the valve, as is often the case with warning whistles. Accordingly, the position of the valve can control the flow of at least one pressurized gas through the warning whistle.

As explained above, in addition to the clearing of the warning whistle in step c), the at least one interior of the gas conducting element may further be pressurized with at least one pressure, for example as described in WO 2011/ 144518 A2.

At least one cavity may be formed between the warning whistle valve and the signaling body of the warning whistle, in particular as described above. In step c), the particular pressurized gas may flow through the cavity into the signal body and then through the outlet opening.

In particular, the outlet opening may be arranged directly or indirectly in the signaling body, as explained above. For example, as explained above, the signaling body may have at least one tube opening, which may act as an outlet opening. However, alternatively or additionally, the outlet opening may also be connected to the signaling body by at least one flow channel, for example.

The procedure comprises in step a) providing the at least one respiratory device. This arrangement in step a) may comprise in particular the placement of the respiratory apparatus in at least one cleaning device, in particular in at least one cleaning chamber of the at least one cleaning device. In particular, the arrangement may include placing the respiratory apparatus in at least one cleaning basket of the cleaning device. Furthermore, step a) may comprise connecting the at least one gas-conducting element of the respiratory apparatus to at least one pressurized connection of the cleaning basket. In step c), the warning whistle can be rinsed with pressurized gas through the pressure connection and through at least one charging device of the cleaning device.

The term "cleaning basket", as used herein, also referred to as "rinsing basket", is a broad term that should be given its ordinary and common meaning, as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a portable holding device in which articles to be cleaned can be held, placed in a cleaning device, for example a dishwasher, and removed again from the cleaning device. cleaning in clean condition. In this way, the cleaning basket can be inserted reversibly into the cleaning chamber. Accordingly, the cleaning chamber may have, for example, at least one support for the cleaning basket. Alternatively, the cleaning basket can also be installed, for example, permanently in a cleaning device. For example, the cleaning basket can be fixed on a rail system of the cleaning device and inserted into a cleaning chamber of the cleaning device and removed from the cleaning chamber again after cleaning. Cleaning baskets can also be used to temporarily store cleaning supplies. In particular, the cleaning basket may have a large number of openings so that the liquid can drip downwards. In particular, the cleaning basket may have an essentially cuboidal shape, with a basket base, which may have a square or generally rectangular outline, for example, and which has a support surface for placing the cleaning basket on a surface of flat work. Optionally, one or more walls of the basket may extend upward from the base of the basket, for example with a raised edge, as well as other optional elements such as handles. The cleaning basket may also have several holders for masks or other holders for the items to be cleaned, in particular the respiratory system. Furthermore, the cleaning basket may have at least one pressure connection, as explained above and will be explained in more detail below.

The term "pressure connection", as used herein, is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a basically arbitrary connection element to which the at least one gas-conducting element can be connected to supply gas under pressure from the charging device to the at least one gas-conducting element. A connection between the pressure connection and the gas-conducting element is generally understood as a fluidic connection, in particular a gas connection, so that the pressurized fluid of the charging device can be transferred to the gas-conducting element of the respiratory apparatus, in particularly inside the gas conductive element and/or the warning whistle, preferably without any fluid loss and/or pressure loss occurring in this connection. The pressure connection may comprise at least one mechanical connection element, in particular a positive and/or non-positive connection, such that the respiratory apparatus, in particular the gas-conducting element, can be firmly attached to the pressure connection. . For example, it may be a screw connection and/or a clamp connection and/or a clamping connection, for which the pressurized connection and/or the breathing apparatus may each have at least one mechanical connection element. In particular, it may be a plug-in connection in the form of a quick coupling and/or thread, for example a coupling part for a respiratory connection of a regulator. Quick coupling generally means a gas- and/or liquid-tight plug-in connection between two fluid-conducting components, which can be mechanically secured by a mechanical fastening that can be produced and released quickly and easily, in particular without using a screw cap, for example by means of at least one tension hook and/or a bayonet lock and/or a screw cap, for example a union nut. In particular, the connection can be carried out without tools. In particular, the pressure connection may comprise a plurality of fixed or interchangeable adapters for connection to different types of gas-carrying elements. These adapters can be used to connect several different gas-conducting elements directly or indirectly to the pressure connection, for example different types and/or different types of gas-conducting elements, for example different brands or manufacturers. For example, an adapter set may be provided with several different coupling parts, for example coupling parts of a quick coupling, and/or threads for connecting different gas-conducting elements. For example, these can be different quick coupling systems and/or standard threads. However, alternatively or additionally, the at least one pressure connection may also be configured as a fixed pressure connection for a specific type of connection element or for a specific type of gas transporting element. It is particularly advantageous if the pressure connection and/or its coupling system are configured in such a way that, on the one hand, no gas can escape if no counterpart is connected and that, in this case, no other medium can enter, for example cleaning fluid, in the gas conducting element.

The pressure connection may be directly or indirectly connected or may be connected to the charging device. As will be explained in more detail below, there are several possibilities regarding the design of the charging device. For example, it may be fully or partially integrated into the cleaning basket, for example in the form of at least one pressurized gas cylinder. In this case, for example, there may be a pressurized gas line between the integrated charging device and the pressure connection of the cleaning basket. In this pressurized gas conduit there may be, for example, at least one valve. Alternatively or additionally, the loading device can also, for example, be fully or partially housed in a cleaning device, into the cleaning chamber of which the cleaning basket is introduced, in the form of a loading device integrated into the cleaning device and /or in the form of a connection of the cleaning device, for example, to a pressurized gas network or to a pressurized gas line provided by the customer. In this case, for example, the cleaning basket can be connected to the loading device via at least one pressurized gas line. This pressurized gas line can, for example, be automatically connected when the cleaning basket is introduced into the cleaning chamber, as described in more detail below. However, alternatively or additionally, the pressurized gas line can also be connected manually, for example, to a corresponding connection of the cleaning basket when the latter is introduced into the cleaning chamber of the cleaning device. Therefore, a cleaning system comprising the cleaning basket and the cleaning device, which is described in more detail below, may also comprise the at least one pressurized gas conduit connecting the charging device and the connection depression. The pressurized gas conduit may be part or all of the cleaning basket or may also be part or all of another part of the cleaning system, for example, the cleaning device or as a separate component.

The term "pressurization device", as used herein, is a broad term that should be given its ordinary and common meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term can refer, without limitation, in particular to a device that is configured to be able to supply a fluid, in particular a gas, at a pressure higher than normal pressure, for example a pressure of at least 1.5 bars, preferably a pressure of at least 2 bars. The pressurization device is designed to charge the gas conducting element with a pressurized gas. A pressurized gas can generally be any gas that has a pressure higher than normal pressure, that is, a pressure greater than 1 bar. In particular, it may be a pressure greater than 1.5 bars, especially greater than 2 bars, and particularly preferably greater than 3 bars. In particular, the pressurization device can be configured in such a way that the pressurization with the pressurized gas takes place in such a way that all the cleaning liquid is kept away from an interior of the respiratory apparatus pressurized with the pressurized gas. The pressurized gas may be compressed air or another overpressured gas medium, such as nitrogen, carbon dioxide or the like. In particular, an inert gas can be used as a pressurized gas. In particular, the cleaning device can be designed such that pressurization takes place through the pressurization device during at least one cleaning process, for example during at least one program step of a single-step cleaning program or of several steps. In particular, the pressurized gas can be applied at the same time as the cleaning liquid is applied to the respiratory system. In particular, the pressurization device has at least one valve, in particular at least one valve that can be controlled by a control system of the cleaning device.

In particular, the pressurization device may comprise at least one element selected from the group consisting of:

• at least one external pressure connection for connecting to the cleaning device an external source of pressurized gas, in particular an in-situ pressurized gas line and/or a pressurized gas cylinder; I

• a source of pressurized gas integrated in the cleaning device, in particular an integrated pressurized gas cylinder and/or an integrated compressor; I

• a source of pressurized gas integrated in the cleaning basket, in particular an integrated pressurized gas cylinder and/or an integrated compressor.

As explained above, the pressure connection may, in particular, comprise at least one form-fitting and/or force-fitting joining element. This connection element may be designed to establish a mechanical connection with the gas-conducting element, in addition to the gas-tight connection. In particular, this at least one connecting element may have at least one quick coupling and/or at least one thread. In general, the pressure connection can be fully or partially integrated into the cleaning basket. Generally, the cleaning basket may in particular have at least one detachable pressurized gas connection to the cleaning device, such that the pressurized gas can be supplied to the cleaning basket via the cleaning device, e.g. whether the charging device is fully or partially integrated into the cleaning device and/or whether the charging device fully or partially comprises an external pressure connection that is connected to the cleaning device. The removable pressurized gas connection between the cleaning basket and the cleaning device can, for example, be manually and/or automatically closed when the cleaning basket is introduced into the cleaning chamber and/or can be manually or automatically disengaged when the cleaning basket is removed from the cleaning chamber. For example, the cleaning basket and the cleaning device may have corresponding pressurized gas connection parts that can be coupled together, in particular reversibly.

The pressurization device is prepared to pressurize the gas conductive element with pressurized gas. In general, pressurized gas is understood to be any gas that has a pressure higher than normal pressure, that is, a pressure higher than 1 bar. In particular, it may be a pressure greater than 1.5 bars, especially greater than 2 bars, and particularly preferably greater than 3 bars. Particularly preferably, the loading device is configured in such a way that the pressurization with the pressurized gas takes place in such a way that all the cleaning liquid is kept away from the interior of the respiratory apparatus which is pressurized with the pressurized gas. The pressurized gas may be compressed air or another overpressured gas medium, such as nitrogen, carbon dioxide or the like.

In particular, an inert gas can be used as a pressurized gas. In particular, the cleaning device can be configured such that pressurization takes place through the loading device during at least one cleaning process, for example during at least one program step of a single-step cleaning program. or several steps. In particular, the pressurized gas can be applied at the same time as the cleaning liquid is applied to the respiratory system. Accordingly, the pressure connection can be arranged within the cleaning chamber in particular, such that the pressurized gas and the cleaning liquid can be applied simultaneously.

In another aspect, a cleaning system is proposed to carry out the procedure proposed here, for example according to one or more of the configurations described above and/or according to one or more of the embodiments described in more detail below. Accordingly, for the description of the cleaning system, in particular with respect to possible definitions and/or with respect to possible embodiments, reference can largely be made to the description of the procedure. The cleaning system includes:

• at least one cleaning device, comprising at least one cleaning chamber for receiving the at least one respiratory apparatus, wherein the cleaning device further comprises at least one charging device for pressurizing the respiratory apparatus with the at least one fluid cleaning in step b), wherein the cleaning device further comprises at least one charging device with at least one pressure port, wherein the pressure port can be connected to the at least one gas conductive element of the apparatus respiratory and wherein the charging device is arranged to clear the warning whistle with the pressurized gas in step c); and

• at least one cover element, wherein the cover element is arranged to at least partially close the at least one outlet opening of the at least one warning whistle of the at least one respiratory apparatus, such that the pressurized gas can continue to flow through the at least partially covered outlet opening.

The term "cleaning system" as used herein is a broad term that should be given its ordinary and customary meaning as understood by those skilled in the art. The term is not limited to a specific or personalized meaning. The term may refer, without limitation, in particular to a system, i.e. to a set of at least two functionally interacting components, which is used for cleaning in the sense of the definition above. With regard to possible definitions and configurations, reference can be made to the previous or following descriptions, definitions and corresponding options of these system components in the previous description or also in the following description.

Possible embodiments of the pressurization device have already been described previously. In particular, the pressurization device may have at least one external pressure connection for connection to an external source of pressurized gas. For example, it may be a pressure connection to be connected to an on-site pressurized gas line and/or to a pressurized gas cylinder. For example, the cleaning device may have such a pressure connection to connect to a customer-supplied pressurized gas line, such as a compressed air line. Thus, for example, a virtually unlimited supply of pressurized gas can be used to clear the warning whistle. However, other designs of the charging device are also possible, either alternatively or additionally.

The proposed method and the proposed cleaning system have numerous advantages over known methods and systems of the type mentioned. In particular, the challenges described above can be addressed when cleaning respiratory devices with warning whistles. The technical implementation of the method can be carried out in a comparatively simple manner, for example by washing with an existing pressure connection and/or by providing the outlet opening of the warning whistle with a protective cover against splashing water during cleaning. The cover element, in particular the splash guard, may comprise an elastic sealing element, for example. The elasticity can help the sealing element to adapt to different external geometries of the warning whistle. Furthermore, in this way the preferably elastic covering element can fit well to the outlet opening of the warning whistle, so that the covering effect can be improved as a result.

The cover element can be made in a simple way. For example, as explained above, the following elements can be used: an elastic band; a closure band with a velcro closure; a clamp, for example made of metal and/or plastic, in particular with at least one seal and/or closing surface. However, other cover elements can also be used.

As explained above, the cover can be complete or partial. As a rule, the cover element does not have to completely seal the exit opening of the warning whistle.

Washing can also be done easily. For example, rinsing air may be introduced into the gas-conducting element, such as the hose system, during the entire cleaning process and/or only part of it. The rinsing air can fill the gas-conducting element, in particular the hose system, and escape through the outlet opening and the cover element. In general, flushing can ensure during the cleaning process that cleaning fluid is totally or partially prevented from entering a cavity between the valve and the signaling body. By covering the outlet opening, in particular with an elastic covering element and, in particular, with an elastic sealing tape, the pressurized gas can usually easily escape, for example between a rubber protection and a pressure gauge. . In general, this also ensures, at least to a large extent, that no cleaning fluid can penetrate between the pressure gauge and the rubber protection, which could subsequently reach the exit opening of the warning whistle and, from there, enter the the system through the valve.

The volumetric flow rate of pressurized gas during rinsing can generally be adapted to the respective needs. For example, in step c) a corresponding volumetric flow rate, such as a volumetric flow rate of supplied compressed air, can be set so that the warning whistle does not start to sound. As explained above, the warning whistle may, for example, have a minimum pressure, as well as at least one other pressure threshold that is lower than the minimum pressure and below which no warning tone is emitted. For example, if pmin is the minimum pressure described above, another pressure threshold ppfeif may exist, with ppfeif < pmin, so the warning tone is only emitted if the pressurization of the gas-conducting element takes place at a pressure p that is in the range ppfeif to pmin, for example if at least one of the following conditions is true:

Psil < P < Pmin

Psil — P < Pmin

Psil—P—Pmin

either

Psil < P — Pmin

The clearing of the warning whistle in step c) can be carried out in particular with a clearing pressure Pacl which is less than psil, i.e. pacl < psil, i.e. in particular in general in such a way that no tone is emitted warning. For example, at least one throttle element may be used to adjust the flushing pressure in a fixed or variable manner, such as a throttle, orifice, or similar element.

As explained above, the warning whistle may comprise, in particular, at least one valve and at least one signaling body. The valve does not need to be tightly closed during step c). Therefore, compared to a process in which the valve must be closed by internal pressurization, for example, it is generally possible to work with a significantly lower pressure during flushing in step c) than would be achieved with static pressurization without flushing. . For example, the pressure during washing can be 2 to 6 bars. Consequently, the components used and also the safety precautions can generally be designed in a simple way, unlike, for example, high-pressure or medium-pressure pressurization. In general, the cleaning system can be configured in a comparatively simple way, for example without safety measures relating to the application of high pressure. Furthermore, as explained above, the use of pressurized gas for flushing, such as flushing air, which can flow through a rubber casing of the gas-conducting element, for example, can effectively prevent the entry of cleaning fluid in this area.

Furthermore, the rinse in step c) may also support at least one optional drying step of a cleaning program. In general, the method may comprise executing at least one cleaning program. In this cleaning program, for example, step b) can be part of at least one washing step and/or at least one rinsing step, in which the at least one washing step and/or the rinsing step They can be followed by at least one drying step. The rinsing of step c) can be extended to the drying step, so that, for example, the rinsing with the pressurized gas can continue to support the drying step. In this way, the pressurized gas and washing with it can additionally favor the drying process and/or prevent the entry of moisture during the drying stage. Accordingly, washing can be continued, for example, until the respiratory apparatus is disconnected from the at least one charging device.

Brief description of the figures

Further details and features, in particular in relation to the dependent claims, are provided in the following description of exemplary embodiments. The respective features can be realized individually or combined with each other. The invention is not limited to the embodiment examples. The embodiment examples are shown schematically in the figures. Identical reference numerals in the individual figures denote identical or functionally identical elements or elements that correspond to each other in terms of their functions.

Shown in detail:

Fig. 1 sectional view of an exemplary embodiment of a cleaning system;

Fig. 2 a schematic representation of the rinsing of a warning whistle of a respiratory apparatus with pressurized gas in the cleaning system;

Fig. 3 schematic flow diagram of a respiratory apparatus cleaning procedure;

Fig. 4A and 4B a first embodiment of a cover for an outlet opening of a warning whistle of a respiratory device, comprising a clip-shaped cover element; and

Fig. 5A, 5B and 5C show a second embodiment of a cover for an outlet opening of a warning whistle of a respiratory device, with a cover element in the form of a sealing strip.

Description of embodiment examples

Figure 1 shows an exemplary embodiment of a cleaning device 110 and a cleaning system 111 according to the invention, which is configured to clean at least one respiratory apparatus 112. The cleaning system 111 comprises the cleaning device 110, as well as as a cover element 113, which is described in more detail below.

The cleaning device 110 is shown schematically in a sectional view in Figure 1. The cleaning device 110 may, for example, be designed as a dishwasher 114. The cleaning device 110 comprises a cleaning chamber 116, for example a rinsing chamber 118. This cleaning chamber 116 can be opened, for example, by a door 120, such as a swing door, a sliding door or a hatch, and/or by another opening device. Alternatively or additionally, the cleaning chamber 116 may also be realized as a cleaning chamber covered with a hood. Other designs are also possible. In the exemplary embodiment shown in Figure 1, the dishwasher 114 is designed, for example, as a front-loading dishwasher. However, other designs are also possible.

The cleaning device 110 comprises at least one charging device 122 for pressurizing the respiratory apparatus 112 received in the cleaning chamber 116 with one or more cleaning fluids. For example, the charging device 122 may comprise one or more nozzles 124, which may be arranged, for example, above and/or below the respiratory apparatus 112 and/or in other locations within the cleaning chamber 116, for example in one or more side walls. For example, as in the illustrated embodiment according to Figure 1, the loading device 122 may comprise a washing nozzle system 126, for example comprising one or more nozzle arms with a plurality of nozzles 124, preferably mounted in rotating and/or pivoting form, received below and/or above the respiratory apparatus 112. Alternatively or additionally, the loading device 122 may also comprise a post-rinse nozzle system 128, for example with one or more nozzle arms post-rinse devices, which in turn are preferably rotatably and/or pivotally mounted, which in turn can be arranged, for example, above and/or below the respiratory apparatus 112. However, other arrangements are also possible in principle. and/or configurations.

The charging device 122 may further comprise one or more additional elements, such as one or more pipes, one or more pumps and/or one or more tanks. For example, in the illustrated embodiment, at least one wash line system 130 is provided to supply the wash nozzle system 126 with cleaning fluid 132, for example cleaning solution, from one or more wash tanks 134. For example, a wash reservoir 134 may be provided in the lower region of the cleaning chamber 116 and/or otherwise connected to the cleaning chamber 116 such that the cleaning fluid 132 can flow and/or drip from return to the wash tank 134 after being applied to the respiratory apparatus 112. To pressurize the wash nozzle system 126 with the cleaning liquid 132 from the wash tank 134, the charging device 122 may further comprise one or more pumps. circulation 136. Additionally, one or more heating elements 138 may be provided to heat the cleaning fluid 132 of the wash tank 134 and/or other tanks, for example in the form of a wash tank heater within the wash tank 134. One or more temperature sensors 140 may be provided to monitor the heating of the cleaning fluid 132, for example within the wash tank 134. Additionally, one or more level sensors 142 may be provided, for example a level sensor 142. as a level sensor of the wash tank 134. For example, the wash tank 134 can be emptied into a drain 148 through a drain line 144 and, optionally, through a drain pump 146. Optionally, they can also be providing one or more inlets, not shown in Figure 1, to the wash tank 134 for filling with cleaning liquid 132. Alternatively or additionally, however, filling can also take place through the rinse nozzle system 128 described with more detail below. Additionally, a dosing system 150, for example, at least one dosing system, may be provided for introducing one or more additives into the cleaning fluid 132 of the wash tank 134, for example, a concentrated detergent, a rinse aid, a disinfectant or combinations of the aforementioned additives and/or other additives.

The cleaning fluid 132 can be applied to the respiratory apparatus 112, in particular in a recirculation mode, by spraying and/or spraying the cleaning fluid 132 from the flushing reservoir 134 onto the respiratory apparatus 112 through the flushing nozzle system 126. , and then draining or dripping back into the wash tank 134 to be used again from there. Optionally, one or more filters, for example coarse filters and/or fine filters, may be provided to at least partially purify the cleaning fluid 132 from the wash tank 134.

The rinse nozzle system 128 may, for example, be supplied with another cleaning fluid 154, for example a rinse fluid, through at least one rinse pipe system 152. Figure 1 shows an optional embodiment in the that the cleaning device 110 is designed as a double circuit system. Accordingly, the second cleaning fluid 154 is provided from a separate tank, which in the illustrated embodiment is designed as a rinse tank 156 that is separate from the wash tank 134. For example, this rinse tank 156 may be performed as a boiler and may include, for example, a rinse tank heater 158. Alternatively or in addition to a rinse tank heater 158, other types of heating elements may be provided for the second cleaning fluid 154, e.g. one or more instantaneous heaters. The same applies to the first cleaning fluid 132 in the rinse tank 134. Again, one or more temperature sensors 160 and/or one or more level sensors 162 may be provided in the rinse tank 156, and to the tank Rinse fluid 154, for example fresh water, may be supplied through one or more inlets 164. The at least one inlet 164 may have one or more valves 166. For example, the inlet 164 may be connected or be connectable to a fresh water connection on-site. Alternatively or additionally, at least one reverse osmosis device 170 may be provided on-site as a component of the cleaning device 110, through which to the rinse tank 156 and/or one or more Tanks of the cleaning device 110 can have a permeate applied to them, for example purified water. Furthermore, at least one dosing system 168 may again be provided, through which one or more additives may be added to the cleaning fluid 154 in the rinse tank 156, for example one or more rinse aid concentrates.

Preferably, the afterrinse nozzle system 128 can be supplied in a single mode, that is, not in a recirculation mode, such that the afterrinse fluid from the afterrinse tank 154 is applied to the respiratory apparatus 112 only once. time. For the application, the charging device 122 may, for example, comprise one or more pressure booster pumps 172.

It should be taken into account that the exemplary embodiment of the cleaning device 110 shown in Figure 1 is only one of the different exemplary embodiments. This means that one or several, or even all of the elements described above, can also be applied in a different framework. The rinse chamber 118 may, alternatively or in addition to the rigid and stationary configuration shown in Figure 1, also be configured to be rotatable and/or rotating. Furthermore, the fluid circuit shown can also be modified considerably.

Cleaning of the respiratory apparatus 112 in the cleaning device 110 according to Figure 1 can be carried out, for example, by first introducing one or more respiratory apparatus 112 into the cleaning chamber 116 by means of at least one cleaning basket 174, which may also be a component of the cleaning device 110 and/or the cleaning system 111. In addition to the cleaning device 110, the cleaning system 111 may additionally comprise, for example, an assortment 175 of different cleaning baskets 174, which They can optionally be inserted into the cleaning chamber 116. Cleaning baskets 174 may be provided in the assortment 175, which are designed differently, for example, at least one cleaning basket 174 with at least one pressure connection 178 described further. detail below and at least one cleaning basket 174 without pressure connection 222. Deviating from the cleaning device 110 shown in Figure 1, however, cleaning devices 110 are also conceivable in which several cleaning baskets 174 can be inserted simultaneously in the cleaning chamber 116.

After inserting the cleaning basket 174 into the cleaning chamber 116, the door 120 can be closed and, preferably, a cleaning program can be started, which can be controlled, for example, via a control 176, for example a central controller. of the machine or a decentralized controller. For example, the washing tank 136 can first be filled with cleaning liquid 132 and/or a preliminary stage of this cleaning liquid 132 by means of the rinsing nozzle system 128, for example fresh water, in particular demineralized fresh water. It may then be conditioned within the wash tank 134, for example by adding one or more additives through the metering system 150 and/or by heating it by the heating element 138. Alternatively or additionally, the cleaning fluid 132 may also have remained in the wash tank 134 after a rinse program of a previous cleaning cycle in order to be used as cleaning fluid 132 and/or as a component thereof in a subsequent cleaning cycle, since the rinse fluid generally It has a comparatively high degree of purity even after it has been applied to the respiratory system 112.

The respiratory apparatus 112 can then be cleaned, in particular washed, preferably in recirculation mode, in one or more phases of the washing program. In this process, adhering impurities can be removed from the respiratory apparatus 112 and/or the respiratory apparatus 112 can be sanitized.

Preferably, one or more rinsing phases can be carried out after the at least one phase of the washing program. For this purpose, the wash tank 134 can optionally be emptied via the drain pipe 144 and the drain pump 146. The rinse tank 156 may already have been filled with the rinse liquid 154, for example fresh water with or without additives, for example demineralized fresh water, during at least one stage of the washing program. One or more additives may then be added through the metering system 168 and/or the cleaning fluid 154 may be heated as a rinse fluid by the rinse tank heater 158 and/or a flow heater. The rinse fluid 154 previously conditioned in this way can then be applied to the respiratory apparatus 112 in the at least one rinsing step through the rinse nozzle system 128, such that the respiratory apparatus 112 is subjected to a final rinse. After the at least one rinsing step, at least one drying step can optionally follow, which can be designed passively, simply by waiting, or which can also be actively supported, for example by at least one drying fan and/or another type of drying device for the cleaning device 110, for example an infrared radiator system and/or a microwave radiation system. Various configurations can be conceived. After the optional drying step, the door 120, which has preferably been locked until then, can be unlocked and/or opened automatically. The control unit 176 can control, for example, the entire program sequence, although several program sequences can also be selected.

During the cleaning described above, in particular when the respiratory apparatus 112 is exposed to at least one cleaning fluid 132, 154, the problem may arise that the cleaning fluid 132, 154 can penetrate into the interior of the respiratory apparatus 112. In particular, the respiratory apparatus 112 may have at least one gas-conducting element 180. This gas-conducting element 180 may, for example, have at least one regulator and/or at least one hose system. Additionally, the gas conducting element 180 may have at least one warning whistle 182, which is described in more detail below. In particular, the cleaning fluid 132, 154 can enter the gas conducting element 180 through this warning whistle 182.

Accordingly, it is proposed that the warning tube 182 of the gas conductive element 180 be flushed with at least one pressurized gas at least partially simultaneously with the application of the at least one cleaning fluid 132, 154. This is explained below. example in Figure 2, which should be viewed in conjunction with Figure 1.

Figure 2 schematically shows the gas conductive element 180, which is housed within the cleaning chamber 116 of the cleaning device 110. Other components of the cleaning device 110 are not shown. For possible configurations, refer to Figure 1 and its description. As explained above, the gas conducting element 180 has at least one warning whistle 182. This warning whistle 182 in turn has at least one outlet opening 184. For example, it could be the opening of a pipe. In particular, the outlet opening 184 may be arranged in at least one signaling body 186 of the warning whistle 182. For example, this signaling body 186 may be a whistle head. Furthermore, the warning whistle 182 may have at least one valve 188. The position of this valve 188 may be controlled by pressurization, for example.

The cleaning device 110 has at least one pressurization device 190. This pressurization device 190 can, in particular, have at least one pressure connection 178. For example, at least one connection element 192 of the gas conductive element 180 can be coupled to this pressure connection 178. For example, the pressure connection 178 can be arranged in the cleaning basket 174. In principle, a different arrangement is also possible. Furthermore, the pressurization device 190 may have at least one pressurized gas supply 196, in particular at least one compressed air supply. This pressurized gas supply 196 may have, in particular, at least one pressurized gas hose 198, which may be designed in one or more parts and which may optionally also have one or more couplings 200. Furthermore, the device pressurization source 190 may optionally comprise one or more pressurized gas sources 202. This at least one pressurized gas source 202 may have, for example, at least one integrated pressurized gas source 204 and/or at least one external pressurized gas 206, for example, at least one building-side connection to at least one building-side pressurized gas network, for example, at least one building-side pressurized gas conduit, in particular, at least one compressed air duct on the side of the building. This at least one pressurized gas source 202 may, for example, be coupled and/or integrated into the at least one pressurized gas supply 196, as shown in Figure 1.

To prevent the cleaning fluid 132, 154 from entering the gas conductive element 180 through the outlet opening 184 during the application of the at least one cleaning fluid 132, 154, the warning whistle 182 is cleared with pressurized gas during this application, as explained above. This may, for example, be controlled by the control unit 176, which controls a program sequence. For example, as shown in Figure 2, washing can take place through the connecting element 192, with a washing pressure p. The warning whistle 182 may, for example, be configured to emit a warning tone when the pressure drops below a minimum pressure pmin. This is indicated in Figure 2 by the fact that the position of the valve 188 is controlled by the pressure p. For example, a pressure conduit 208 of the gas conducting element 180 may have a branch 210 that pressurizes the valve 188 and controls its position. At the same time, as can also be seen in Figure 2, the pressure conduit 208 can direct a flow of pressurized gas 212 through the valve 188, which then flows through an optional cavity 214 and finally reaches the body of signaling 186, where it exits through the outlet opening 184. The warning whistle 182 can, for example, be configured so that a warning tone is emitted at least at a pressure lower than a minimum pressure pmin. For example, the warning tone may be emitted during operation of the respiratory apparatus 112 when the pressure is within a pressure range pSil to pmin, where psil represents a lower pressure threshold that is minimally required for the warning whistle 182 to be emitted. emit the warning tone. However, rinsing during cleaning can be carried out in particular in such a way that the rinsing pressure p of the pressurized gas flow 212 is lower than the lower pressure threshold psil, so that no warning tone is emitted during cleaning. . However, a different configuration is also possible, since, for example, if the discharge pressure is only slightly above the lower pressure threshold, usually only a barely perceptible warning tone is generated compared to the other discharge noises. .

To further prevent the cleaning fluid 132, 154 from entering the outlet opening 184, the outlet opening 184 can be at least partially closed with the at least one cover element 113, as indicated in Figure 1. This coating It is done so that the pressurized gas can continue to escape through the outlet opening 184 during rinsing. Some examples are described in more detail below.

Figure 3 shows a schematic flow diagram of a possible configuration of a proposed procedure for cleaning the respiratory apparatus 112. This process can be carried out using, for example, the devices shown in Figures 1 and 2. However, it is also a different design possible. The process comprises the steps indicated in Figure 3, which can be carried out, for example, in the order indicated. However, a different sequence and/or a sequence in which two or more of the process steps shown in Figure 3 overlap in time and/or are carried out at least partially simultaneously is also possible in principle. .

The method comprises providing the respiratory apparatus 112 (step a), (designated by reference number 216 in Figure 3). This provision 216 may comprise, for example, an insertion 218 of the respiratory apparatus 112 into the cleaning device 110, in particular into the at least one cleaning basket 174. Furthermore, step 216 may comprise covering the at least one outlet opening 184 with the at least one cover element 113 as described above, designated with the reference numeral 220 in Figure 3. Furthermore, the step 216 may comprise the connection of the at least one gas conductive element 180 of the respiratory apparatus 112 to the pressure connection 178 and/or to the pressurization device 190, designated with reference number 222 in Figure 3.

Furthermore, the procedure shown in Figure 3 comprises carrying out at least one cleaning program 224. During this cleaning program 224, the respiratory apparatus 112 is exposed to at least one cleaning fluid 132, 154 (process step b) , designated by reference numbers 226 and 228 in Figure 3). For example, the cleaning program may comprise at least one wash step 226 and, optionally, at least one rinse step 228, as described above. Additionally, the cleaning program 224 may optionally comprise at least one drying step 230.

Furthermore, as explained above, the procedure shown in Figure 3 comprises clearing the at least one warning whistle 182 with the at least one pressurized gas (step c) of the procedure, designated by the reference number 232 in the Figure 3). This rinsing 232 occurs at least partially simultaneously with one or both of the process steps 226 and 228. In particular, step 232 may begin before steps 226 and/or 228 are started and end after the steps 226 and/or 228 are completed. steps 226 and 228. Optionally, step 232 may also be extended at least partially throughout the duration of drying step 230, for example until the end of drying step 230 or even beyond.

The process may then be terminated, as indicated in Figure 3 by reference numeral 234. This termination may include, for example, removal of the respiratory apparatus 112 from the cleaning device 110, or removal of the respiratory apparatus 112 may follow completion 234. For example, the respiratory apparatus 112 may be decoupled from the pressurization device 190.

For example, the procedure shown in Figure 3 may be fully or partially controlled by control 176. For example, control 176 may control one or more valves and/or one or more pumps to accordingly perform the procedure. Other elements of the devices shown in Figures 1 and/or 2, for example, may also be temporarily controlled by the control unit 176.

As explained above, the at least one outlet opening 184 can optionally be covered during cleaning, as explained in step 220. At least one cover element 113 can be used for this. Figures 4A, 4B, 5A , 5B and 5C show various embodiments. However, other configurations are also possible. Each of the figures shows a partial representation of a gas conducting element 180 of a respiratory apparatus 112 by way of example. In each case, a warning whistle 182 is observed, which has at least one outlet opening 184. As shown in the figures, the warning whistle 182 can be coupled to at least one pressure gauge 236 and/or integrated into the minus a 236 gauge. However, other designs are also possible. This integrated device, comprising the pressure gauge 236 and the warning whistle 182, may, for example, be fully or partially covered by at least one rubber sleeve open in the region of the outlet opening 184.

Figures 4A and 4B show a configuration, in perspective views, in which the cover element 113 is made in the form of a flexible clamp 238, which may, for example, be made entirely or partially of plastic and/or metal . Figure 4A shows the cover element 113 and the gas-conducting element 180 separately, while in Figure 4B the outlet opening 184 of the warning whistle 182 of the gas-conducting element 180 is covered by the cover element 113.

This clamp 238 may, for example, have flexible arms 240. Additionally, the clamp 238 may, for example, have at least one sealing surface 242. This at least one sealing surface 242 may, for example, be a surface of a elastic element 244, which may, for example, comprise at least one rubber stopper. However, a different design is also possible. The elastic element 244 may, for example, be fully or partially integrated into the clamp 238 or, as shown in Figures 4A and 4B, may be connected to the clamp 238, for example by a bolted connection. While in Figure 4A the cover element 113 is shown separated from the warning whistle 182, in Figure 4B the cover element 113 is placed on the warning whistle 182 in such a way that this cover element 113 covers the opening of exit 184 and therefore closes it at least partially. This placement can take the form of clipping, for example. In general, the cover element 113, in this exemplary embodiment or also in other exemplary embodiments, can be connected to the warning whistle 180, for example, through at least one connection selected from the group consisting of a connection of friction, a form drag joint and a material drag joint. However, the pressurized gas can still escape from the outlet opening 184 during rinsing, for example in process step 232 of Figure 3 above, indicated in Figure 4B by the reference numeral 246. This can be achieved, for example. For example, by totally or partially displacing the pressurized gas the elastic element 244.

Figures 5A, 5B and 5C show another exemplary embodiment of an outlet opening cover 184, in perspective views. In this exemplary embodiment, the cover element 113 is designed as a sealing strip 248. In Figure 5A, the cover element 113 is again shown separated from the gas conductive element 180, analogously to Figure 4A, while in Figure 5B the cover element 113 covers the outlet opening 184 of the warning whistle 182, analogously to Figure 4B. Figure 5C, on the other hand, shows a perspective view of a cleaning basket 174 in which the respiratory apparatus 112 is housed. In this case, the respiratory apparatus 112 comprises a supporting frame 250 and a pressurized gas bottle 252. with a gas conducting element 180 analogous to that of Figure 5B, with the outlet opening 184 of the warning whistle 182 closed by the cover element 113. The pressurized gas cylinder 252 can be used as a pressurization device 190 for the flushing of the warning whistle 182, or an additional pressure connection, not shown, analogous to that of Figure 1 or Figure 2, may be used. The cleaning chamber 174 may, for example, be placed in a corresponding cleaning device 110 .

As explained above, in Figures 5A, 5B and 5C the cover element 113 is designed as a sealing strip 248. Specifically, it may be an elastic band. In particular, the sealing strip 248 may be designed with at least one hook and loop closure 254, as seen in Figures 5A and 5B. However, other configurations are also possible in principle.

List of reference symbols

110 Cleaning device

111 Cleaning system

112 Respiratory system

113 Cover element

114 Dishwashers

116 Cleaning chamber

118 Rinse chamber

120 Door

122 Charging device

124 Nozzles

126 Washing nozzle system

128 Rinse nozzle system

130 Washing Line System

132 Cleaning fluid, washing fluid

134 Wash tank

136 Circulation pump

138 Heating element

140 Temperature sensor

142 Level sensor

144 Drain pipe

146 Drain pump

148 Drain

150 Dosing system

152 Rinse piping system

154 Cleaning fluid, rinsing fluid

156 Rinse tank

158 Rinse tank heater

160 Temperature sensor

162 Level sensor

164 Entry

166 Valve

168 Dosing system

170 Reverse osmosis device

172 Pressure booster pump

174 Cleaning basket

175 Assortment

176 Control, control unit

178 Pressure connection

180 Gas conducting element

182 Warning whistle

184 Exit opening

186 Signaling body

188 Valve

190 Pressurization device

192 Connection element

194 Compressed air supply

196 Pressurized gas supply

198 Pressurized gas hose

200 Coupling

202 Pressurized gas source

204 Integrated pressurized gas source

206 External source of pressurized gas

208 Pressure line

210 Branch

212 Pressurized gas flow

214 Cavity

216 Supply of the respiratory system

218 Placement of the respiratory apparatus

220 Exit hole coverage

222 Gas conductive element connection

224 Cleaning program

226 Washing phase

228 Rinse step

230 Drying phase

232 Rinsing with pressurized gas

234 End

236 Manometer

238 Clamp

240 Arm

242 Sealing surface

244 Elastic element

246 Pressurized gas leak

248 Sealing tape

250 Transport frame

252 Pressurized gas cylinder

254 Velcro closure

Claims (15)

1. Procedure for cleaning respiratory devices (112) that includes the following steps: a) providing the respiratory apparatus (112), the respiratory apparatus (112) presenting at least one gas conductive element (180) with at least one warning whistle (182), wherein the warning whistle (182) is configured to emitting a warning tone when the gas conductive element (180) is pressurized with at least a pressure that falls below a minimum pressure; b) applying to the respiratory system (112) with at least one cleaning fluid (132, 154); and c) rinsing the warning whistle (182) with at least one pressurized gas, wherein step c) is carried out at least partially at the same time as step b) and wherein the rinsing is carried out in such a manner that the pressurized gas flows out through at least one outlet opening (184) of the warning whistle (182), such that the entry of the cleaning liquid (132, 154) to through the outlet opening (184) through which the pressurized gas exits. 2. Method according to the preceding claim, further comprising: d) covering the exit opening (184) of the warning whistle (182) with at least one cover element (113), wherein step d) is carried out at least partially before steps b) and c), wherein, during coating, the outlet opening (184) is at least partially closed such that the pressurized gas can continue to flow out through the outlet opening. outlet at least partially covered (184). 3. Method according to the preceding claim, wherein the cover element (113) is configured to be flexible, wherein in step c) the exiting pressurized gas displaces the cover element (113), at least partially , of the exit opening (184). 4. Method according to the preceding claim, wherein the cover element (113) is seated as a flexible valve in the outlet opening (184). 5. Method according to one of the three preceding claims, wherein the cover element (113) has elastic properties. 6. Method according to any of the four preceding claims, wherein the cover element (113) at least partially encloses the warning whistle (182). 7. Method according to any one of the five preceding claims, wherein the cover element (113) has at least one element selected from the group consisting of: an elastic band; a sealing band with hook and loop closure; a clamp (238); a clamp with at least one sealing element. 8. Method according to any one of the preceding claims, wherein the pressurized gas comprises compressed air. 9. Method according to one of the preceding claims, wherein the pressurized gas during rinsing in step c) has a rinsing pressure lower than the minimum pressure. 10. Method according to the preceding claim, wherein the washing pressure is in a range of between 1 bar and 12 bars. 11. Method according to one of the preceding claims, wherein the warning whistle (182) has at least one valve (188) and at least one signaling body (186), wherein the valve (188) can be apply an internal pressure of the gas conductive element (180). 12. Method according to the preceding claim, in which at least one cavity (214) is formed between the valve (188) and the signaling body (186), where the pressurized gas flows in step c) through the cavity (214) towards the signaling body (186) and then through the outlet opening (184). 13. Method according to one of the two preceding claims, wherein the outlet opening (184) is arranged in the signaling body (186). 14. Cleaning system (111) to carry out the procedure according to any one of the preceding claims, comprising: - at least one cleaning device (110), comprising at least one cleaning chamber (116) for receiving the at least one respiratory apparatus (112), wherein the cleaning device (110) further comprises at least one cleaning device load (122) for applying to the respiratory apparatus (112) the at least one cleaning fluid (132, 154) in step b), wherein the cleaning device (110) also has at least one pressurization device (190) with at least one pressure connection (178), where the pressure connection (178) can be connected to at least one gas conductive element (180) of the respiratory apparatus (112) and where the pressurization device (190 ) is arranged to clarify in step c) the warning whistle (182) with the pressurized gas; - at least one cover element (113), wherein the cover element (113) is arranged to at least partially close the at least one outlet opening (184) of the at least one warning whistle (182) of the at least a breathing apparatus (112), such that pressurized gas can continue to flow through the at least partially covered outlet opening (184). 15. The cleaning system (111) according to the preceding claim, wherein the pressurization device (190) comprises at least one external pressure port for connection to an external source of pressurized gas (206).