Application nozzle for cleaning implant part, in particular for use in system for cleaning component, in particular implant part, contaminated by biofilm

Abstract

An application nozzle (20, 56, 56 ', 56' ') for applying a dental active substance in the oral cavity of a patient, in particular a system (1, 1') for cleaning a dental implant part (2) contaminated by a biofilm, according to the invention comprises a base or nozzle body (30, 72) in which at least one media channel (32, 76) is integrated on the one hand and a plurality of electrical conductor elements (34, 36, 84, 86) are integrated on the other hand, the base or nozzle body (30, 72) is designed to extend longitudinally flat from the connection region (26, 80) to the free treatment end (28, 82) and the cross-section of the base or nozzle body (30, 72) tapers in the direction of the treatment end (28, 82).

Description

[0001] The present invention relates to an application nozzle for applying a dental agent into a patient's oral cavity for cleaning an inserted dental implant. The present invention also relates to a system for cleaning components, in particular implant parts, contaminated by biofilm using such an application nozzle.

[0002] From WO2014 / 075755A1, WO2014 / 122187A1, WO2014 / 122188A1, WO2016 / 023998A1 and WO2021 / 018871A1 (the disclosures of which are fully incorporated by reference), a treatment element (especially for use with an implant part) and a method for cleaning a dental implant part are known. Such cleaning of the implant part may be desirable or necessary to ensure that the embedded implant is preserved in the bone substance. Biofilms can form on the solid surface of the implant, which is surrounded by tissue and tissue fluid and contains bacteria that can eventually lead to chronic and recurrent infections. This condition is called peri-implantitis. Similar to periodontitis, a combination of neglect of oral hygiene, adhesion of biofilms to the usually slightly rough dental implant surfaces and other factors is the cause of comprehensive peri-implantitis, which is characterized by increased pressure and destruction of hard and soft tissues. Areas of atrophy of hard and / or soft tissues are often covered with biofilms.

[0003] The cleaning process described in the above-mentioned publication is based on the concept of killing and removing the biofilm or bacteria that form the contamination, starting from the implant surface, without damaging the implant surface. For this purpose, an electrolytic process is provided, in which ions (cations and / or anions) are transported through the biofilm by electrostatic forces. These ions react chemically or electrochemically on the implant surface. These reactions produce new compounds and / or convert the ions themselves and / or parts of these ions into an atomic state. It is also possible that the ions react with the surface material (e.g. to form an oxide layer or remove material). On the one hand, this process kills the bacteria through the chemical substances formed, but on the other hand, it also leads to the formation of bubbles, which mechanically remove the biofilm. This effect (which provides a mechanical component of the mode of action in addition to the chemical component) can be the most important active component, especially when removing biofilms, because biofilms can be relatively resistant to chemical or biological actions due to their complex nature and the compounds formed. However, the mechanical lifting effect caused by the bubbles formed breaks the bonds, so that the components of the biofilm can also be used again for chemical or biological actions.

[0004] The bactericidal effect of the process is based on various effects. Firstly, the applied voltage transports ions from the biofilm itself (including bacteria) to the anode or cathode. This can kill bacteria and viruses. In addition, the ions can undergo biochemical reactions while passing through the biofilm, which can also kill bacteria and / or viruses. Another possibility for killing bacteria is that new compounds are formed on the implant surface that have an antibacterial and / or antiviral and / or antifungal effect. Of course, this can also happen when the ions change to an atomic state.

[0005] The treatment element described in the above-mentioned application is specifically designed for carrying out such a cleaning process directly on the embedded dental implant, i.e. preferably when the abutment is located in the bone in the patient's mouth. For this purpose, the treatment element is designed to be directly connected to the embedded abutment part and then to apply a suitable treatment liquid in the affected area of ​​the adjacent bone substance in the immediate vicinity of the embedded abutment part, which treatment liquid can serve as the basis for the desired electrolytic process when exposed to an electric current. Therefore, to use this treatment element, mechanical and electrical contact must be established with the embedded post part. For this purpose, in the design of the treatment element described in the above-mentioned application, the prosthesis on the dental implant and possibly also the abutment of the prosthesis must usually be temporarily removed in order to fix it to the abutment part. Therefore, the performance of such a procedure is mainly regarded as therapeutic in cases where inflammation has already occurred in the oral area near the implant and the existing biofilm must be separated and removed. The measures to be taken during the treatment are correspondingly far-reaching.

[0006] It is also desirable or necessary to adapt the treatment concept (i.e. the combined application of electric current and electrolytic cleaning fluid to the affected implant) for preventive or prophylactic treatment. Compared to the possible costs associated with curative treatment, the treatment concept should be designed to be particularly flexible and easy to use.

[0007] The object of the present invention is therefore to provide an application nozzle for a treatment system of the above-mentioned type, with which the above-mentioned treatment concept can also be applied in a particularly simple and cost-effective manner in the prevention aspect. In addition, a treatment system particularly suitable for using this application nozzle will also be specified.

[0008] For the application nozzle, this object is achieved according to the invention by a nozzle body in which, on the one hand, at least one medium channel and, on the other hand, a plurality of conductor elements are integrated for supplying a cleaning electrolyte from a connection area to a treatment end, the nozzle body being designed as a main body which extends flat in the longitudinal direction from the connection area to the free treatment end and whose cross section tapers gradually in the direction of the treatment end.

[0009] Advantageous embodiments of the invention are the subject matter of the dependent claims. The description of the figures also yields further and / or alternative advantageous embodiments of the invention as well as further embodiments which are regarded as independently inventive.

[0010] The invention is based on the consideration that, on the one hand, it is desirable to treat the system components particularly easily when the above-described treatment concept is used in prevention. On the other hand, in such an application, it should be possible to carry out the treatment without further intervening substances, such as temporary removal of the prosthesis or the like. According to the invention, it is therefore assumed that the treatment is carried out as part of a regular dental examination or a preventive treatment, wherein the embedded implant is to be treated and contacted in the area in which it is anchored in the bone without prior removal of the prosthesis or the like. Therefore, the implant surface to be treated should be contacted primarily via the pockets associated with the implant, in which pathogenic bacteria accumulate anyway in the case of early inflammation. Therefore, the application nozzle should be designed in particular with a correspondingly compact design in order to have good usability within the individual pockets and / or between the implant and the adjacent teeth.

[0011] In order to take this into account, according to one aspect of the invention, the application nozzle or the treatment head is designed as a substantially flat component. This does not mean that the treatment head can or should be two-dimensional; on the contrary, it should be understood here that the application nozzle or the nozzle body forming the application nozzle should be a body extending substantially along the base surface or ground surface, but with a certain thickness in a third spatial direction. However, from a cross-sectional view, this also means that the lateral extension of the nozzle body in the base surface is significantly greater than the thickness in the direction perpendicular to the base surface. For application, this means that the free end or the treatment end of the nozzle body can be relatively easily inserted into the above-mentioned tooth pocket, for example by aligning the base surface of the nozzle body in a manner substantially parallel to the outer surface of the implant.

[0012] Furthermore, the cross section of the nozzle body should taper towards the treatment end. Thus, the free end or treatment end of the nozzle body generally has a flat, relatively narrow or even conical profile, making it particularly easy to insert into the tooth pocket.

[0013] According to one aspect of the invention, the conductor element or elements are positioned in or on one of the media channels so that they are wetted by the clean electrolyte flowing in the corresponding media channel. This ensures reliable electrical contact and thus the desired process control as described above.

[0014] In order to be able to apply relatively large amounts of cleaning electrolyte into the tooth pockets with a particularly compact design and in particular to be able to correctly flood the tooth pockets if necessary, the nozzle body should also be provided with a plurality of outflow openings in the outflow region arranged in the treatment end region, which outflow openings can be used jointly for applying the electrolyte. For this purpose, according to one aspect of the invention, a branching medium channel is integrated in the nozzle body, which leads to a plurality of application openings on the outlet side, so that these application openings can be supplied with electrolyte via a common supply. Alternatively, there can also be a plurality of medium channels on the inlet side, which convey the same medium or are connected to the same medium container or to different medium containers, which all contain almost the same or completely the same medium.

[0015] In particular, the nozzle body can have a triangular contour when viewed from above.

[0016] In an advantageous further development, a plurality of outflow openings are arranged in an outflow direction which is aligned transversely to the longitudinal axis. This makes it easy for the cleaning electrolyte to fill the entire space in the tooth pocket around the free or treatment end of the nozzle body.

[0017] This allows the electrolyte to be applied specifically in the region of the free or treatment end of the treatment head or application nozzle and in particular enables precise application into the tooth pockets.

[0018] According to one aspect of the invention, the application nozzle may generally be used as a treatment head in a system for cleaning components contaminated with biofilm, or may be provided for such use.

[0019] In view of the intended use of the application nozzles in the field of dental care and prevention, in order to be able to manufacture a large number of such application nozzles and thus to carry out mass production, a particularly suitable design is preferably selected for this purpose, which allows a functionally reliable application concept to be provided even when using relatively inexpensive materials. In order to take this into account, a foil material is preferably provided as a base material for the nozzle body for producing the nozzle, which can be constructed by stacking a plurality of foil layers on top of each other to form a suitable composite body. In this preferred embodiment, the base body or nozzle body of the media channel opened on the outlet side of the respective application opening is therefore formed by a layered body, which is laminated from a plurality of film sheets.

[0020] By making recesses in the respective films, media delivery channels for delivering electrolyte to the desired delivery points in the composite can be provided, which channels lead to the application openings of the composite on the output side. Using film-based technologies and subsequent lamination, in particular great flexibility in the design and insertion of such media channels can be achieved, since by suitable shaping on the respective films, for example by particularly preferably punching or laser cutting, the free or empty spaces required for these media channels can be created in the composite in a variety of ways and geometries. The media channels can be produced in particular by using lamination technologies, for example by producing a central film with corresponding cutouts and then laminating the upper and lower sides with continuous films to form the composite in the form of a film sandwich. In this way, the distribution of the media in the individual channels can be controlled very precisely by their spatial design.

[0021] Advantageously, polyamide is provided as substrate for the film or film sheet; however, alternatively, another suitable film material, such as PVC, PP or PE, or even a combination of different film materials, may also be considered advantageous. According to one aspect of the invention, the material is chosen in particular to ensure that the application nozzle is also suitable for use by trained medical personnel, for example in connection with treatment by a dentist. Particularly preferably, the film material is chosen based on its material properties, such as in particular its stiffness or strength, so that the stiffness of the laminate or composite formed from the film sheet is not too great, thereby largely precluding oral cavity injuries.

[0022] In a particularly advantageous embodiment, which is considered to be independently inventive, the nozzle body consists of at least three film layers, which have different material properties and are functionally adapted to different specifications. In particular, according to one aspect of the invention, a central film layer arranged between two adjacent film layers can be formed completely or partially from a harder film material, i.e., in particular, with a different Shore hardness or elastic modulus than the two adjacent film layers. Thus, the central film layer or one of the film sheets forming the central film layer can define the contour or spatial shape of the nozzle body in the manner of a supporting structure, while the relatively soft outer film layers can be designed to be flexible and deformable, thereby significantly reducing the risk of injury in the event of contact, for example, with the oral mucosa with the nozzle body.

[0023] According to one aspect of the invention, the media channels are formed by corresponding grooves in the central or inner film, which grooves are laterally delimited by the corresponding side edges of the adjacent film sheets. The corresponding media channels are then delimited at the top and bottom by the correspondingly laminated continuous base film or cover film. In order to be able to safely and reliably provide a relatively large corresponding free cross section of the media channels suitable for the passage of larger amounts of electrolyte, with correspondingly wide grooves in the middle or central film, in this advantageous embodiment, which is considered to be independently inventive, a plurality of media channels are provided with integrated gaskets.

[0024] In a particularly advantageous embodiment, the application nozzle is also designed with regard to its geometry and dimensions for the precise application of the electrolyte to the oral region of the patient. In particular, it is advantageously possible to also apply to the interdental spaces or tooth pockets of the patient. According to one aspect of the invention, an application nozzle particularly suitable for this purpose has a nozzle body which is constructed as a laminate of foils with a total thickness of 0.3-2 mm, preferably 0.5-1.5 mm, particularly preferably 0.7-1.2 mm. Correspondingly, the film sheets forming the laminate each have a film thickness of 50-500 μm, preferably 80-350 μm, particularly preferably 100-250 μm.

[0025] In an advantageous further development, the application nozzle as described above is designed as a disposable or single-use product and is therefore intended for single use only.

[0026] According to one aspect of the invention, the application nozzle is provided with an electrical conductor element in order to reliably regulate the current for the above-mentioned treatment concept. On the one hand, it is intended to establish a current through the clean electrolyte guided in the medium channel so that the basic process can be triggered. In order to ensure this, according to one aspect of the invention, a plurality of conductor elements assigned with a first electrical polarity are integrated into the nozzle body and positioned in or on one of the medium channels so that when the clean electrolyte flows in the corresponding medium channel, the corresponding conductor element is wetted by the clean electrolyte. In the particularly preferred medium-side parallel connection of two or more medium channels, these medium channels can be connected on the inlet side via a branching point arranged in the nozzle body, or can also be connected to a common electrolyte container or a plurality of functionally interconnected electrolyte containers via a distribution system arranged on the flow side upstream of the nozzle body, such conductor elements assigned with a first polarity are preferably arranged in a plurality of (at least two) of these medium channels. According to this aspect of the invention, at least two conductor elements assigned with a first electrical polarity are therefore integrated into the nozzle body.

[0027] Furthermore, during implant treatment, direct electrical contact with the implant is important for the intended mode of action. This should also take place via the application nozzle, since in this case, unlike the concept described at the outset, no disassembly of the prosthesis is provided and therefore no electrical contact with the implant is possible via its inner region or the region exposed upwards. In order to still be able to reliably make direct electrical contact with the implant, according to one aspect of the invention, a conductor element associated with the second electrode is integrated into the nozzle body, which conductor element extends in the longitudinal direction beyond the treatment end formed by the nozzle body. The conductor element is therefore exposed at the end so that it can directly come into contact with the exposed outer surface of the implant, for example also in the tooth pocket, and thus establish electrical contact. To a certain extent, this should form an electrode opposite to the above-mentioned conductor element so that the current can be adjusted by connecting a suitable current or voltage source.

[0028] In a particularly preferred embodiment, the treatment tip is designed as a disposable or one-time product. For example, this can be achieved by destroying the treatment tip after use (i.e. after removal from other components of the treatment system used) or otherwise making it unusable.

[0029] According to aspects regarded as independently inventive, a nozzle is used in a system for cleaning components, in particular implant parts, which are contaminated by biofilm.

[0030] With regard to a system for using such an application nozzle to clean components (especially implant parts) contaminated with biofilm, the task is solved by a handle piece, which is provided with multiple electrical and media connections, so that both the electrical conductor elements and the media channels of the application nozzle can be connected to corresponding electrical and media supply lines in the handle piece.

[0031] In a particularly advantageous embodiment, the treatment system is designed as a mobile device, wherein no fixed connection to external peripheral devices is required. For this purpose, a replaceable container for cleaning electrolyte is advantageously arranged in the handle.

[0032] The advantages achieved by the invention are in particular that the nozzle body is designed as a flat component which tapers towards the free end, which means that the intended treatment of the inserted implant can be carried out through the relevant pocket, which is accessible due to the spatial shape. As a result, major preparatory measures for the treatment, such as removal of a denture, can be omitted. The medium channel which is integrated in the nozzle body and branches there also makes it particularly easy to apply the electrolyte evenly and in such a way that the entire space is filled, in particular to reliably apply it to the entire pocket via a plurality of downstream application openings.

[0033] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. As shown in the figure:

[0034] Figure 1 A dental implant that is embedded in the patient's oral bone.

[0035] Figure 2 is a schematic diagram of the mobile treatment system.

[0036] Figure 3 is based on Figure 2 A perspective view of a treatment head of a treatment system shown in FIG.

[0037] Figure 4 is based on Figure 3 The longitudinal section of the treatment head shown,

[0038] Figure 5 is a schematic diagram of a fixed treatment system.

[0039] Figure 6 is based on Figure 5A perspective view of an application nozzle of a treatment system is shown,

[0040] Figure 7 is based on Figure 6 Cross section of the application nozzle shown,

[0041] Figure 8 is based on Figure 6 A perspective view of the base section of the application nozzle is shown in the sequence of manufacturing steps,

[0042] Fig. 9 is a partial enlarged view of the treatment area of ​​the active ingredient applicator shown in FIG8 ,

[0043] Figure 10 is based on Figure 6 A perspective view of a base section of an application nozzle shown in an alternative design in a sequence of manufacturing steps,

[0044] Fig.11 is based on Figure 5 A perspective view of an alternative embodiment of an application nozzle of a treatment system is shown,

[0045] Figure 12 is based on Fig.11 A perspective view of the base section of the application nozzle is shown in the sequence of manufacturing steps,

[0046] Fig.13 is based on Figure 5 A plan view of another alternative embodiment of the application nozzle of the treatment system is shown,

[0047] Fig.14 is based on Fig.13 Top view of the electrode area of ​​the application nozzle, shown

[0048] Fig.15 is based on Figure 5 A perspective view of another alternative embodiment of an application nozzle of a treatment system is shown,

[0049] Figure 16 is based on Figure 2 or Figure 5 Another alternative embodiment of the sequence of manufacturing steps of the application nozzle of the treatment system shown,

[0050] Fig.17 is an enlarged view of the treatment end of the application nozzle shown in FIG. 16 ,

[0051] Fig.18 is an enlarged view of the contact head of the application nozzle shown in FIG. 16,

[0052] Fig.19 is a partial cross-sectional view of a treatment head including an application nozzle according to FIG. 16 ,

[0053] Fig. 20 is based on Fig.19A side view of the treatment head is shown.

[0054] Fig.21 is an enlarged view of an alternative embodiment of the treatment end of the application nozzle shown in FIG. 16 ,

[0055] Fig. 22 is based on Fig.19 A front perspective view of the contact plug of the treatment head is shown, and

[0056] Fig.23 is based on Fig. 22 A rear perspective view of the contact plug is shown.

[0057] In all the drawings, the same parts are marked with the same reference numerals.

[0058] A problem with dental implant systems in general, and in particular with two-piece implant systems, is that inflammation or inflammatory lesions may occur if bacteria or pathogens penetrate into the tissue area near the insertion site, in particular in the area of ​​the external thread of the insertion into the jawbone. Such inflammation, in particular inflammation caused by so-called peri-implantitis, can lead to severe damage to the tissue and bone in the area of ​​the insertion site, in particular if they develop and consolidate over a longer period of time. Without appropriate countermeasures, these damages may lead to the entire implant system having to be removed from the bone and a new implant system installed or replaced with another prosthesis after bone reinforcement. Therefore, such extremely adverse effects caused by peri-implantitis may lead to complete failure of the implant system, so that further surgical measures may be required, such as scraping off the affected area of ​​the jawbone and reinstalling the implant system. Such removal can also lead to bone loss or other tissue material loss, which in extreme cases can make it impossible to carry out a new restoration with another implant. Such a need for a new restoration caused by peri-implantitis may also occur after a relatively long period of time after the first insertion of the implant system, for example up to several years or even decades.

[0059] The germs or bacteria associated with peri-implantitis can in principle colonize in the interior of the implant component, but usually prefer to attach directly to the surface of the dental implant embedded in the jawbone, i.e. in the area in contact with the surrounding tissue or bone material, i.e. in particular in the area of ​​the external thread. In this area, the surface of the dental implant can be provided with roughness or the like in order to particularly favor ingrowth into the tissue or bone and to support the healing of the dental implant after insertion. However, it is precisely in this rough surface, which is considered to be in fact particularly favorable for implant systems, that regional germs or bacteria can increasingly colonize, so that the roughness makes it more difficult to specifically remove existing germs or bacteria.

[0060] Therefore, there is an urgent need to take appropriate countermeasures in order to effectively combat the inflammatory foci and kill and / or remove the invading germs in the event of impending or already occurring peri-implantitis, while retaining the implant system already in place so that healthy tissue or healthy bone material can form again in the area around the outer thread. In addition to the targeted killing of germs or bacteria in the affected area, it is also desirable to reliably remove their material residues and fragments from the affected area so that the affected area can be filled with healthy tissue or bone material again and a tight connection can be formed again between the outer surface of the dental implant and the surrounding tissue or bone material. In addition, biofilms formed by bacterial coatings, including organic residues of dead bacteria, should be reliably removed.

[0061] To achieve this, a treatment concept for cleaning components (especially implant parts) contaminated by biofilm is known from the publications WO2014 / 075755A1, WO2014 / 122187A1, WO2014 / 122188A1, WO2016 / 023998A1 and WO2021 / 018871A1, the disclosures of which are incorporated in their entirety ("incorporated by reference"), in which the contaminated surface of the implant is wetted with an electrolytic cleaning liquid and subjected to an electric current. Among other things, the combination of a suitably selected electrolyte and an electric current causes gas bubbles to form directly on the implant surface, thereby blowing off any adhering biofilm and thus helping to clean the surface. The continuously supplied electrolyte rinses the area to be cleaned (e.g., a bag), thereby removing dissolved stones.

[0062] However, unlike the above-mentioned publications, the main intention and purpose of the present case is not to treat peri-implantitis or tissue inflammation that has already occurred, but rather preventive treatment, in which the development of inflammation or its further expansion and spread should be prevented as part of standardized preventive treatment. For example, this can prevent existing mucositis from developing into peri-implantitis.

[0063] To this end, Figure 1 The use of the provided treatment system 1 is schematically illustrated in FIG. This shows a dental implant 2 installed in the oral bone of a patient. For clarity, Figure 1 A so-called pocket 8 is shown adjacent to the dental implant 2 in the region of the outer thread 4 of the dental implant 2 and the jawbone 6, which pockets are usually formed in the form of gradually widening gaps between the tooth enamel or the jawbone 6 and the surrounding soft tissue 10. Bacteria preferentially accumulate in such pockets 8, which can lead to subsequent inflammation in the form of periodontitis in the case of healthy teeth and the aforementioned peri-implantitis in the case of an implanted dental implant 2.

[0064] The treatment system 1 is intended to counteract this effect in a preventive manner and also at an early stage, i.e. when a bacterial infection or biofilm begins to form or has already spread. In terms of its mode of action, its design is based on the concept of the above-mentioned publication: on the one hand, it is designed to specifically kill bacteria present in the insertion area of ​​the dental implant 2 by selectively providing a bactericidal cleaning agent or disinfectant compatible with the human body. On the other hand, it is designed to detach any germs and / or bacterial residues or fragments that have adhered to the surface of the dental implant 2 (especially in the area of ​​the external thread 4) from the outer surface of the dental implant 2 by applying a suitable current or current surge, so that they can be subsequently rinsed away.

[0065] The treatment system 1 is designed as a mobile system in a first embodiment, which is considered to be inventive in terms of both the system design and the intended method steps of the treatment method, such as Figure 2 Schematically shown in . The system 1 comprises a handle 12, which is equipped with suitable containers and storage elements related to the intended operating mode (i.e. application of current pulses to the dental implant 2 in the area of ​​the pocket 8 and with a suitably selected electrolytic cleaning liquid). For this purpose, a suitable battery 14 (or any other suitable current or voltage source) on the one hand and a storage container 16 for the cleaning electrolyte on the other hand are integrated into the handle 12. The storage container 16 is designed as a replaceable storage container 16 so that it can be easily refilled after the contents have been used up. In particular, the storage container 16 can be designed in the form of an ampoule for medical agents, so that the medium-side connection can be realized by a Luer connection using established filling and connection concepts.

[0066] In the example shown, the handle 12 is connected on the media side and is also electrically connected to the transition piece 18. These components (which can in principle also be designed as a single functional component) form a reusable component that can in principle be used for a large number of treatments, for example as part of standardized precautions for a large number of patients. In order to realize the actual treatment, the actual application nozzle (referred to as the treatment head 20 in this design example) is connected to it. With regard to hygiene and care, the treatment head 20 is designed for single use only and is therefore a disposable product. The treatment head 20 is provided with a plurality of electrical and media connections, so that the electrical conductor elements and the media channels of the treatment head 20 can be connected to the corresponding electrical and media supply lines 22, 24 in the handle 12 and the transition piece 18.

[0067] The treatment head 20 is also called a nozzle. Figure 3 Perspective drawing and Figure 4As shown in the longitudinal section of , it has a base body 30 extending longitudinally from the connection side 26 to the free treatment end 28, in which a plurality of electrical conductor elements 34, 36 and a plurality of media channels 32 for supplying a cleaning electrolyte from the connection side 26 to the treatment end 28 are integrated. It is designed in a particularly simple manner specifically for the intended use of preventive treatment, namely to electrically contact the dental implant 2 and to apply the cleaning electrolyte in a targeted manner into the tooth pocket 8 in a manner that is considered to be independently inventive. In particular, it is taken into account that the doctor should contact the implant 2 precisely despite the very limited space. In order to achieve this, the spatial shape of the base body 30 is appropriately selected, taking into account that the tooth pocket 8 is usually formed in the form of a gap extending along the surface of the tooth or implant.

[0068] In order to take this into account, according to one aspect of the present invention, the treatment head 20 is designed as a substantially flat component in the form of a flat spatial body. Therefore, the treatment head 20 or the base 30 forming the treatment head is designed as a body extending substantially along the base surface or ground surface, and its thickness in the cross section remains significantly smaller than its lateral extension in the base surface. For application, this means that the free end or treatment end 28 of the base 30 can be relatively easily inserted into the tooth socket 8, for example, by aligning the base surface of the base 30 substantially parallel to the outer surface of the implant 2.

[0069] Furthermore, the cross section of the base body 30 tapers in the direction of the treatment end 28. Thus, the free end of the base body 30 or the treatment end 28 generally has a flat, relatively narrow or even conical profile, so that insertion into the dental pocket 8 is particularly easy. In the embodiment shown, this results, for example, in Figure 4 As can be seen from the longitudinal sectional view of , the base body 30 has a triangular-shaped outline in a plan view.

[0070] In order to reliably ensure the conceptually intended direct electrical contact of the dental implant 2 as part of the preventive treatment, the base body 30 has an integrated conductor element 34 assigned with a first electrical polarity, which, when viewed in the longitudinal direction, protrudes beyond the treatment end 28 formed by the base body 30. At the end, the conductor element 34 is therefore exposed and can therefore come into direct contact with the exposed outer surface of the implant 2 in the dental pocket 8, thereby establishing electrical contact. Preferably, the implant 2 is switched in a cathodic manner; therefore, the conductor element 34 is used for switching with cathodic polarity.

[0071] Furthermore, in order to complete the current path provided within the framework of the treatment concept, at least two conductor elements 36, exactly two in the embodiment example, assigned with a common second electrical polarity are integrated in the base body 30. These conductor elements 36 form electrodes opposite to the above-mentioned conductor elements 34 and are therefore provided for the anode circuit in the embodiment example. Thus, the current can be adjusted by connecting the current or voltage source provided in the handle 12. According to the concept described in the above-mentioned publication, the conductor elements assigned with the second electrical polarity are used to establish a current through the provided clean electrolyte, so that the basic process can be triggered.

[0072] In order to ensure this, the treatment head 20 is designed to precisely apply the cleaning electrolyte into the tooth pocket 8 so that the desired current path can be created through it. To this end, the base body 30 is provided with a plurality of outflow openings 40 for the cleaning electrolyte, each of which is connected to one of the medium channels 32, and the outflow area 38 is arranged in the area of ​​the treatment end 28. This allows the electrolyte to be discharged exclusively in the area of ​​the treatment end 28 of the treatment head 20 and therefore directly into the corresponding tooth pocket 8 if necessary.

[0073] In the present case, it is particularly important that the cleaning electrolyte is reliably in direct electrical contact with the anodically connected conductor elements 36. This ensures that - as the concept is intended - an electric current flows through the conductive cleaning electrolyte, ultimately leading to the generation of the desired ionic reactions and possible gas bubbles on the surface of the implant 2. In order to ensure this, the conductor elements 36 assigned with the anode, the second electrical polarity, are positioned in or on one of the media channels 32 so that they are wetted by the cleaning electrolyte when the cleaning electrolyte flows into the corresponding media channel 32.

[0074] A plurality of outflow openings 40 are also arranged along the outflow direction, transversely aligned with the longitudinal axis, e.g. Figure 3 This makes it easy for the cleaning electrolyte to fill the entire space area in the dental pocket 8 around the treatment end of the matrix 30.

[0075] In an alternative embodiment, the treatment system 1 'can also be designed as a fixed system, such as Figure 5 This can be used in particular for dental treatments, such as cleaning or preventive measures or curative treatments. The treatment system 1 ' comprises a central supply unit 52 to which an application nozzle 56 is connected via an intermediate handle or handpiece 54, as the actual treatment head or actual treatment element, which application nozzle is designed for single use only and is therefore a disposable product in terms of hygiene and care.

[0076] Even though the above-mentioned treatment head 20 in combination with a mobile treatment system 1 and the application nozzle 56 described in more detail below in combination with a fixed treatment system 1' are explained, it goes without saying that in the context of the present invention, both can also be used for corresponding other treatment systems 1, 1' with otherwise identical designs, i.e., the above-mentioned treatment head 20 replaces the application nozzle 56 in the fixed treatment system 1' and the application nozzle 56 replaces the treatment head in the mobile treatment system 1.

[0077] The application nozzle 56 is connected to an electrolyte bottle or ampoule 58 arranged in the supply unit 52 via a connection element (in the embodiment example via a PVC or silicone hose 57 connected to the medium side). Furthermore, it is connected to a control unit 62 arranged in the supply unit 52 via an electrical connection line 60. The electrolyte bottle 58 and the control unit 62 are arranged in a common housing 67 of the power supply unit 52 together with a backup battery 64 provided for supplying the control unit 62 as required and a pump 66. The application nozzle 56 is provided with a plurality of electrical and media connections, so that both the electrical conductor element 60 and the media-side connection hose 57 formed by a PVC / silicone hose can be appropriately connected.

[0078] The electrolyte ampoule 58 is intended to provide a clean electrolyte, for example, as disclosed in the publications WO2014 / 075755A1, WO2014 / 122187A1, WO2014 / 122188A1, WO2016 / 023998A1 and WO2021 / 018871A1, the entire disclosure of which is incorporated herein (“incorporated by reference”). The connecting hose 57 connecting the electrolyte ampoule 58 and the application nozzle 56 on the medium side can be closed by a hose valve 68, which is arranged in the region of its passage through the housing 67 and can be controlled by a control unit 62, which can start the electrolyte flow when opened and stop the electrolyte flow again when closed. According to one aspect of the invention, the hose valve 68 can be designed in particular as a pinch valve, which in the closing mode for closing is deformed by squeezing the relatively soft hose material until it is completely closed.

[0079] The electrolyte ampoule 58 is designed as a disposable product and is therefore a replaceable storage container, so that it can be discarded after the contents are used up and replaced with a new ampoule. In particular, the electrolyte ampoule 58 can be designed in the form of an ampoule for medical active ingredients, wherein the medium-side connection can be designed using established filling and connection concepts through a Luer connection. In the illustrated embodiment, the electrolyte ampoule 58 is designed with a relatively soft ampoule body, which can be compressed by the user (e.g., during manual use) in an embodiment that is considered to have independent creativity, so as to distribute the active ingredient contained therein. According to another aspect that is considered to have independent creativity, a pressure chamber 70 is located inside the outer housing 67. The pressure chamber 70 is connected to a pump 66 designed as an air pump. Once the internal pressure in the pressure chamber 70 is fully increased by the pump 66, the overpressure causes the ampoule body to be compressed and the active ingredient contained therein to be distributed using the deformability of the ampoule body. In this embodiment, which is considered to be independently inventive, an "encapsulated" application of the active ingredient can thus be achieved without direct contact with the ampoule body. In particular, in combination with the above-mentioned pinch valve, access and process control from the outside can be performed via an electrical signal line, thereby achieving automation in a particularly simple manner.

[0080] Therefore, the electrolyte ampoule 58 is placed in the pressure chamber 70 to operate the system 1 according to this aspect of the invention. An overpressure of 0.8-1.5 bar, preferably 1.0-1.2 bar, is established in the pressure chamber 70 by the pump 66 and is kept as constant as possible. The resulting electrolyte outflow is controlled by the hose valve 68. When opened, the hose valve 68 enables the flow and stops the flow by squeezing the hose. The medium flow from the electrolyte ampoule 58 can be appropriately controlled and, if necessary, can be adjusted by the interaction and appropriate activation of the pump 66 on the one hand and the hose valve 68 on the other hand.

[0081] In addition, the electrolyte ampoule 58 can also be pressed out using other mechanical, pneumatic or hydraulic systems.

[0082] For the intended preferred use in the field of dental care or prevention, Figure 6The application nozzle 56 shown in the perspective view is specially designed for high functionality, has a particularly simple design and can therefore also be produced in large quantities with limited manufacturing costs. For this purpose, the application nozzle 56 has a nozzle body 72 as an essential functional component, in which a plurality of media channels 76 are integrated, which are connected to an application opening 74 on the outlet side for the active substance to be applied, i.e. in particular a cleaning electrolyte, and a plurality of electrical conductor elements 78 for generating the intended current through the cleaning electrolyte. It is specially designed in a particularly simple manner for the intended use in preventive treatment, i.e. electrical contacting of the dental implant 2 and targeted application of the cleaning electrolyte into the tooth pocket 8 in a manner which is considered to be independently inventive. It is particularly taken into account that the physician should be able to precisely contact the implant 2 despite the very narrow space. In order to achieve this, the spatial shape of the nozzle body 72 is appropriately selected, taking into account that the tooth pocket 8 is usually formed in the form of a gap extending along the implant surface.

[0083] In order to take this into account, according to one aspect of the invention, the design of the application nozzle 56 is provided in such a way that it remains a flat spatial body, as a substantially flat component extending longitudinally flat from the connection area 80 to the free treatment end 82. Therefore, the application nozzle 56 or the nozzle body 72 forming the nozzle is designed as a body extending substantially along the base or ground surface, the thickness of which, when viewed in cross section, remains significantly smaller than its lateral extension in the base surface. For application, this means that the free or treatment end 82 of the nozzle body 72 can be inserted relatively easily into the tooth pocket 8, for example by aligning the base surface of the nozzle body 72 substantially parallel to the outer surface of the implant 2.

[0084] Furthermore, the cross section of the nozzle body 72 tapers in the direction of the treatment end 82. Thus, the free end or the treatment end 82 of the nozzle body 72 generally has a flat, relatively narrow or even conical profile, making insertion into the dental pocket 8 particularly easy. In an embodiment, this results in the nozzle body 72 having an at least partially triangular profile when viewed from above.

[0085] In order to reliably ensure the conceptually intended direct electrical contact of the dental implant 2 during the preventive treatment, at least two conductor elements 84, exactly two in the embodiment example, which are assigned a common first electrical polarity are integrated in the nozzle body 72. In addition, in order to complete the current path provided within the framework of the treatment concept, the nozzle body 72 has an integrated conductor element 86 (as a further one of the conductor elements 78) which is assigned a second electrical polarity and which, viewed in the longitudinal direction, protrudes beyond the treatment end 82 formed by the nozzle body 72. Figure 6In the embodiment example shown, even two such conductor elements 86 are provided. At the end side, these conductor elements 86 are therefore exposed and can therefore come into direct contact with the exposed outer surface of the implant 2 in the pocket 8, thereby achieving electrical contact. Preferably, the implant 2 is switched in a cathodic manner; therefore, the conductor elements 86 are provided for switching with cathodic polarity.

[0086] The conductor element 84 is only Figure 6 . These conductor elements 84 form electrodes opposite to the above-mentioned conductor elements 86 and are therefore provided for the anode circuit in the embodiment example. Thus, the current can be adjusted by connecting the current or voltage source provided in the handle 54. According to the concept described in the above-mentioned publication, the conductor elements 84 assigned with the first electrical polarity are used to establish a current through the provided clean electrolyte, so that the basic process can be triggered.

[0087] In order to ensure this, the application nozzle 56 is designed for precise and comprehensive application of the cleaning electrolyte into the pocket 8, so that the pocket 8 can be flooded as efficiently as possible, so that the required flow path can be reliably produced by the cleaning electrolyte. For this purpose, the media channel 76 integrated in the nozzle body 72 and used for the supply of the cleaning electrolyte is branched, so that the media channel 76 starting from the media connection 88 is divided into a plurality of channels at a branching point 90 in the nozzle body 72 and is connected via these channels on the outlet side to a plurality of outflow or application openings 74 arranged in an outflow area 92 in the area of ​​the treatment end 82. In the embodiment example, the application openings 74 connected in parallel on the media side in this way are located on both sides of the treatment end 82 and have a transverse outflow direction, so that the cleaning electrolyte can be discharged evenly to both sides of the application nozzle 56. In this way, the electrolyte can be discharged in a targeted manner in the vicinity of the entire space of the treatment end 82 of the application nozzle 56 and can therefore be discharged directly into the corresponding pocket 8 if necessary. In particular, water can thus be poured into the pocket from the top through the treatment end 82 and in each case slightly upwards from the side through the outflow or application opening 74 .

[0088] With respect to the desired low-cost design suitable for large quantities, according to one aspect of the present invention, the nozzle body 72 (e.g., according to Figure 7 The application nozzle 56 or its nozzle body 72 is designed as a film composite or laminate, so that a large number of suitable application nozzles 56 can be provided inexpensively by a relatively simple method and with great flexibility in terms of spatial design.

[0089] The application nozzle 56 or its nozzle body 22 is formed by a plurality of film sheets 94 in a laminated or stacked manner, which are superimposed on each other and bonded, welded or otherwise connected to each other at their contact surfaces. The film thickness d of the film sheets 94 is approximately 100-250 micrometers, and is therefore preferably in the range of 50-500 micrometers. Therefore, the total thickness D of the application nozzle 56 or its nozzle body 72 constructed as a laminate of film sheets 94 is approximately 0.7-1.2 mm, that is, preferably in the range of 0.3-2 mm, so that it can be inserted into the tooth pocket 8 without difficulty.

[0090] The media channels 76 can be created by punching or laser cutting into a corresponding film 94, so that the application nozzle 56 can be designed particularly simply and with particular flexibility in its spatial configuration and the type and number of media channels. Figure 4 It can also be seen from the illustration in FIG. 1 that a plurality of media channels 76 can be equipped with integrated gaskets 100 , so that relatively flat and relatively wide media channels 76 can be formed to provide a relatively large flow cross section.

[0091] According to one aspect of the present invention, Figure 6 The one-piece application nozzle 56 shown in has such a structure as a film layer or a composite or as a laminate forming the entire nozzle body 72 of the application nozzle 56. In the embodiment example, the application nozzle is also composed of film layers 96, 98 that are different in material selection and parameters, and the central intermediate film layer 98 of the first film material is covered on both sides by the corresponding sides or outer film layers 96 of another film material. The material properties of the film layer 98 and the film layer 96 are different and functionally suitable for different specifications. In the embodiment example, the intermediate film layer 98 is composed of a relatively hard film material, that is, in particular, it has a relatively large Shore hardness or elastic modulus, while the other film layers 96 tend to be softer. Therefore, the intermediate film layer 98 can define the contour or spatial shape of the nozzle body 72 in the form of a supporting structure, while the relatively soft outer film layer 96 can be designed to be flexible and deformable, thereby significantly reducing the risk of injury when, for example, the oral mucosa comes into contact with the nozzle body 72.

[0092] In the embodiment shown, the application nozzle 56 is entirely composed of this thin film composite material. Fig. 9 This construction method can be seen in the enlarged view in .

[0093] Figure 5 1 shows the structure of the film layer package in order, starting from the first, bottom film layer 96, and gradually adding other film layers 96, 98. Figure 8aThe bottom or first film layer 96 is shown, which, viewed from above, has been adapted to the desired shape of the nozzle body 72. The width tapers starting from the connection region 80 in the direction of the treatment end 82. The film sheet 94, which has been precut in this way on its outer contour, is also provided with embossed grooves 102. In a subsequent step of the film stack construction, such as Figure 8b As shown, a conductor wire 106 bent at a free end 104 is embedded in these grooves to form the conductor element 86. Thus, the bent end 104 protrudes forward beyond the base surface formed by the film 94, i.e., beyond the treatment end 82, as expected from the conductor element 86 according to the design.

[0094] Then, another film 94 which also forms a film layer 96 is applied to the lower film layer 96 provided with the leads 106 in this way and, for example, laminated thereon. The film stack thus obtained is Figure 8c . The last applied foil layer covers the previously embedded conductor wire 106, so that the conductor element 86 formed by it is visible in this illustration only at the end 104 which still protrudes forward beyond the treatment end 82. The conductor element at the end 104 is therefore used for contacting the implant and is insulated in the remaining area. Therefore, the conductor wire 106 can only be electrically contacted (for example by a control unit) through the contact opening 107 provided through all foil layers 96, 98. On its upper surface, the upper film layer 96 is also provided with embossed grooves 108. In addition, embossed or punched receiving grooves 110 are also included in the connection area 80.

[0095] Then, a conductor wire 112 is inserted into each slot 108, as shown in FIG. Figure 8d The conductor lines 112 are used to form the above-mentioned conductor elements 84 associated with the first polarity. After the conductor lines 112 are connected, the next thin film layer 98 is applied to the resulting layer stack, as shown in FIG. Figure 8e As shown. The foil layer 98 forms a central foil layer 98, which is made of a relatively hard foil material, i.e., in particular, has a relatively large Shore hardness or elastic modulus, while the other foil layers 96 are relatively soft. Therefore, the film layer 98 can act as a supporting layer or a forming layer, which provides a certain rigidity and mechanical stability for the entire package.

[0096] exist Figure 8e It can be clearly seen that the film layer 98 is made of several parts and is formed by several film sheets 94. The sheets 94 are arranged at a certain distance from each other and have openings 114 between them. These openings 114 form the medium channel 76 which is integrated in the nozzle body 72 and can have a great degree of design freedom due to the processing of the sheets (laser, stamping). Figure 8eIn the embodiment example of FIG. 8 , it can be clearly seen that, starting from the provided media connection 88, the media channel 76 branches at the branching point 90 provided in the connection region 80 and continues to three subsequent channel sections (a central channel and two side channels) up to the corresponding outflow opening 74. Thus, the common media connection 88 is connected to the three outflow or application openings 74 via the media ducts 76 branching in this way; these openings are therefore connected in parallel on the media side.

[0097] Conductor elements 112 are also located in two side channels of these three parallel-connected channel sections, so that the conductor elements are wetted by the medium flowing in the corresponding medium channel 76. This allows electrical contact to be established with the medium flowing there via the conductor elements 112. For contact from the periphery, Figure 8d As shown, the conductor elements 112 are guided in sections at their end sections 116 through contact holes 118 provided there. According to one aspect of the invention, these are arranged continuously in the entire film stack so that, for example, a connector plug can be inserted to establish electrical contact with the respective conductor element 112.

[0098] This contact concept using contact holes 107, 118 that run through the entire foil stack is also considered to be independently inventive. The fact that the conductor line 106 is integrated in the foil stack and extends parallel to its base plane can be used to achieve an overall flat design with a low overall height. However, a reliable electrical contact can still be achieved by inserting suitable connecting elements (e.g. connecting pins) in a close-fitting manner into the corresponding contact holes 107, 118 so that they are in close contact with the conductor segments extending there without damaging them.

[0099] In particular, a connection pin can be used which has a slightly larger diameter than the corresponding contact hole 107, 118. When it is pushed into the corresponding contact hole 107, 118, the latter deforms due to its geometry and thus comes into close contact with the connection pin. As mentioned above, the conductor element can be designed as a conductor wire, but it is also preferably designed as a foil or other flat element, because the deformability provides a particularly useful contact option.

[0100] Alternatively, it is also possible to simply press contact pins or the like onto the conductor wires or conductor tracks to make contact, without having to provide openings or holes in the conductor tracks.

[0101] In a further step, the connecting pipe 120 is inserted into the receiving groove 110 of the lower film layer 96, which receiving groove also continues into the film layer 98 via a corresponding groove 114 between the two film sheets 94, so as to form the media connection 88, as shown in FIG. Figure 8fAs shown. This can be formed as a metal or ceramic tube or as a plastic tube or rolled up foil. Conical foil stacks are also possible. This would be a particularly cost-effective variant, since all film layers only need to have one conical end. On the other hand, the media connection or media sealing would be relatively more complicated. To optimize the sealing, it is also possible to compress the film stack and press a tube or nozzle with a conical connection geometry into the media opening. If the conical nozzle is pressed in with appropriate force, the flexibility (elasticity / plasticity) of the film stack allows for adequate media sealing.

[0102] Then, if Figure 8c As shown, two further foils 96 and the corresponding intermediate components are placed in a substantially mirror-symmetrical manner, so that Figure 6 The application nozzle 56 is shown. In the exemplary embodiment, this comprises a structure of five foil layers 96, 98, wherein two guide elements 86 leading to the treatment end 82 in the longitudinal direction are arranged symmetrically with respect to the central medium channel 76. Fig. 9 This can be clearly seen in the enlarged view of the outflow region 92 shown.

[0103] The intended design of the application nozzle 56 and the intended manufacturing process, in particular the laser cutting or punching of the contour of the media channel 76, allow great flexibility in the design and configuration of the cavities, chambers or media volumes provided in the layer envelope or laminate. Polyamide is used as the substrate for the film layers 96, 98 or the film sheet 94; however, alternatively, another suitable film material, such as PP or PE, or even a combination of different film materials, may also be considered advantageous. As a substrate for use Figure 6 As an alternative to the film sheet 94 shown in FIG. 8 , whose outer contour has already been punched out, it is also possible to preliminarily only punch and emboss the inner part and to perform only the outer shaping after lamination.

[0104] In the present case, it is particularly important that the cleaning electrolyte reliably makes direct electrical contact with the conductor element 84 connected to the anode formed by the conductor wire 112. This ensures that - as the concept is intended - an electric current flows through the electrically conductive cleaning electrolyte, which ultimately leads to the desired ionic reaction and possible gas bubbles on the surface of the implant 2. To ensure this, the conductor element 84 associated with the anode, the second electrode, is positioned in the manner described in or on one of the medium channels 76 so that when the cleaning electrolyte flows into the corresponding medium channel 76, the conductor element is wetted by the cleaning electrolyte.

[0105] FIG10 shows an alternative embodiment of the application nozzle 56 in a sequence similar to that of FIG8 , which is structured as a film layer package, likewise starting with a first, lowermost film layer 96 and gradually adding further film layers 96, 98. This variant is identical in construction to the embodiment according to FIG8 , but differs in the latter in the design of the conductor element 84 which serves as an anode and is wetted with a clean electrolyte during operation. Figure 8c , 8d 10 (as shown in FIG. 10 ). Fig.10c As can be seen particularly clearly in FIG. 1 , these conductor lines 112 are designed as a metal coating 120 which is applied to the underlying thin-film layer 96, for example by vapor deposition (sputtering, electroplating, etc.), preferably made of gold or platinum.

[0106] The conductor element 84 formed by this metal coating 120 has a special advantage, that is, it can be particularly flexibly contoured and shaped. In particular, its surface profile can adapt to the projection of the corresponding medium channel 76 on the foil layer 96. In this way, a particularly large contact surface, that is, the entire bottom surface of the corresponding medium channel 76, can be used to make electrical contact with the clean electrolyte flowing in the medium channel 76 in a material-saving manner. In particular, the distance between the conductor element 84 and the application opening 74 can be very easily changed and adjusted as needed, for example, for further product development or adjustment. In a particularly advantageous embodiment, which is considered to have independent creativity, the conductor element 84 is applied by a printing process, preferably a screen printing process. According to one aspect of the present invention, the conductor element 84, possibly in addition to other conductive tracks, can also be produced using a suitable screen printing paste (for example based on titanium). The conductor track preferably includes silver, gold or titanium as a substrate.

[0107] In another aspect considered to be independently inventive, the insulation or other functional structures provided between the conductive tracks can also be applied by a printing process, preferably a screen printing process. In addition, generally, according to another aspect considered to be independently inventive, some or all of the conductor tracks can be formed from silver as a substrate, whereby these conductor tracks can be provided with a carbon protective coating according to one aspect of the invention to prevent corrosion and / or mechanical damage caused by contact with the electrolyte. In particular, such silver conductor tracks can be covered with a carbon coating.

[0108] Another alternative embodiment of an application nozzle 56' which is considered to be independently inventive is shown in perspective in FIG. 8. Fig. 9 It shows something like Figure 5 In this embodiment, the application nozzle 56' is also designed as a thin film layer package, and its structure is Fig. 9 , also starting from the first, bottommost film layer 96. Alternatively, for better illustration, Fig. 9 The conductor element 126 (preferably made of titanium, gold or platinum) is shown separately in FIG. Fig. 9 The underside of the foil layer 96 of c is shown and is only for ease of understanding and description. Fig. 9 b is shown separately. Fig. 9 In the embodiment shown in FIG. 1 , the application nozzle 56 ′ is designed in the same manner as Figure 7 The variant shown in is similar, in which the anode conductor elements 84 are each formed by a metal coating.

[0109] Fig. 9 a shows the bottom or first film layer 96, which, when viewed from above, has also been adapted to the desired shape of the nozzle body 72. In this embodiment, the film 94, which has been precut in this way on its outer contour, is provided with a central embossed groove 122. This groove 122 can also be embossed during the lamination process. In subsequent steps of the film stack construction, such as Fig. 9 As shown in FIG. 2 b, the tongue-shaped element 124 is embedded in the groove to form the cathode conductor element 86', whose free end 104 protrudes forward beyond the bottom surface of the film layer 96 formed by the film 94, that is, beyond the treatment end 82, just as the conductor element 86' is arranged according to the design.

[0110] Analogously to the above example, for the application nozzle 56', a further foil layer 96 (also foil layer 96) is then applied to the lower foil layer 96 provided with the conductor elements 86' in this way and laminated thereon, for example, the anode conductor element 84 is applied thereon in the form of a metal coating 120 ( Fig. 9 c), similar to Figure 7 , and the tongue-shaped element 126 is fixed thereunder. Fig. 9 The foil layer 96 in c is coated on the bottom and top with a conductive layer, preferably made of titanium, gold and / or platinum. The next foil layer 98 formed from a plurality of foils 94 is then applied to the layer package ( Fig. 9 d). The foil layer 98 forms a central foil layer 98, similar to the above-described variants, and is formed at least around the circumference of the one or more foils 94 forming it from a preferably harder foil material, i.e. in particular having a relatively large Shore hardness or elastic modulus. However, it is also possible for all film layers to be made of the same material.

[0111] In addition, Fig. 9d, the spaced-apart routing foils 94 can be identified, with openings 114 remaining between them, in order to form the media channel 76 integrated in the nozzle body 72. The metal coating 120 is located in the two transverse media channels thus formed, which are connected in parallel on the media side so that they are wetted by the media flowing in the respective media channel 76. In a further step, the connecting pipe 120 is embedded in the receiving groove 110 of the lower film layer 96, which is also provided in this variant, in order to form the media connection 88 ( Fig. 9 d) Then, if Fig. 9 d, another film layer 96 and a corresponding intermediate component (such as Fig. 9 b) is also placed here in a roughly mirror-symmetrical manner. Fig. 9 As shown in c, Fig. 9 The film layer 96 in e is preferably provided on both sides with a conductive layer forming two electrodes. The final film layer 96 is then applied and fixed (preferably laminated) to obtain the application nozzle 56' shown in FIG.

[0112] The special feature of this embodiment of the application nozzle 56', which is regarded as independently inventive, is reflected in the configuration of the cathode conductor elements 86'. As described above, they are fixed to the film layer 96 and together with the film layer 96 form a tongue-shaped element 124, on the outside of which, i.e. in the perspective view shown in FIG. 8, a contact electrode 126 designed as a metal coating 120 is applied on top of or below the corresponding protruding free end 104 of the treatment end 82 protruding from the nozzle body 72. Using the design freedom provided by the design as a metal coating 120, this contact electrode 126 is designed in a structural manner according to one aspect of the invention and can be designed as an element for contacting the detection implant 2.

[0113] This contact detection is used to identify on the device side whether the implant 2 is also in a safe electrical contact state, so that the treatment can be started and carried out reliably. In principle, a variety of variants can be envisaged for this contact detection. For example, a capacitance measurement can be performed between the conductor element 86 and the implant 2. As soon as the implant 2 is in contact with the electrode 86, the capacitance between the two conductor elements 84 and 86 changes in a measurable manner.

[0114] Alternatively, after the electrolyte has flowed through the pocket 8, a voltage can be applied inside the pocket 8. This will cause a current to flow. Once in contact with the implant 2, the surface area of ​​the electrode increases greatly, causing the current to increase while the voltage remains constant. This can be measured and used.

[0115] Another possibility is to measure the voltage. As soon as the application nozzle 56, 56' is inserted into the dental pocket 8 and filled with electrolyte, a galvanic cell element is formed by the conductor elements 84 and 86 (anode and cathode). Preferably, the conductor element 86 is cathode-connected and, like the implant 2 itself, is made of titanium or a titanium alloy, and the conductor element 84 is anodically connected and is preferably made of gold or platinum or a metal, preferably titanium or a titanium alloy coated with gold or platinum. Due to the contact with the implant 2, the electrode area in contact with it is significantly increased. This also leads to a change in the galvanic cell voltage or the maximum possible output current. This can be measured and evaluated accordingly.

[0116] Implant contact detection can also be achieved by impedance measurement between two electrodes. In this case, when the implant 2 is in electrical contact, the impedance of the electrodes will also change.

[0117] Another possibility is to connect one or more auxiliary electrodes to one of the above-mentioned means, which auxiliary electrodes are used exclusively for implant identification measurements using one of the already mentioned measurement techniques.

[0118] However, in a manner that is considered to have independent creativity, in Figures 8, Fig. 9 In the embodiment shown, implant identification is achieved by contacting the implant 2 (preferably the cathode) with the conductor element 86'. Here, the external contact electrode 126 (as shown in the enlarged plan view of the installed state in FIG. 10, and without Fig.11 The last partial insulating foil layer 96 according to FIG. 10 is designed as a structured conductor element.

[0119] The metal coating 120 forming the contact electrode 126 is divided into at least two conductor elements 128, 130 (two in the embodiment example), which are arranged side by side on the tongue-shaped element 124. The conductor elements 128, 130 can be contacted individually and independently of each other. By checking for short circuits between these conductor elements 128, 130, the implant can be detected. If the implant 2 contacts the conductor elements 128, 130 at the same time and thus establishes a reliable contact between the contact electrode 126 and the implant surface, the conductor elements 128, 130 are short-circuited through the implant 2. This can also be measured and evaluated accordingly.

[0120] In the embodiment example shown, which is considered to be particularly advantageous and independently inventive, the two conductor elements 128, 130 are designed to have a relatively complex structure with a relatively large number of thin conductor tracks. In the embodiment example, these conductor tracks are comb-shaped and arranged directly adjacent to each other alternately. This allows particularly effective measurements, because short circuits can be generated at a large number of local positions by implant contact. In particular, this should largely prevent the implant 2 from contacting only one of the conductor elements 128, 130. In this case, the implant 2 will indeed be contacted and can be safely cleaned, but the electronic evaluation based on short circuit detection will still not recognize any implant contact. Therefore, it is best to arrange the alternating conductor tracks adjacent to each other, place them as close as possible and as thin as possible. Preferably, the conductor tracks and / or the free space between them are less than 250 microns, 100 microns or 60 microns.

[0121] FIG. 12 shows a further alternative embodiment of an application nozzle 56 ″ in a perspective view, which is also considered to be independently inventive. In this embodiment, the application nozzle 56 ″ is also designed as a film layer package and, similar to the above-described variant, comprises a structure of five film layers 96 , 98 . However, unlike the above-described variant, the application nozzle 56 ″ comprises, in addition to the outflow or application openings 74 for the electrolyte, which are arranged transversely on the nozzle body 72 in the region of the treatment end 82 , additional application openings 132 . According to one aspect of the invention, these openings are arranged on the upper and lower sides of the nozzle body 72 relative to the planar configuration of the nozzle body 72 , thereby penetrating the respective uppermost and lowermost film layers 96 . Therefore, the medium channels 76 extending inside these film layers 96 are also connected to the environment on the medium side via the application openings 132 . Preferably, the implant is in cathode contact with the conductor element 86 . Preferably, the conductor element 84 connected anodically is provided with application openings 132 on both sides. The conductor elements 84 attached on both sides are not electrically connected to each other.

[0122] This embodiment is based on the idea, which is considered to be independently inventive, that in this way the direction of the application nozzle 56 ″ inserted into the dental pocket 8 can be automatically detected. To this end, the metal coatings 120 arranged on both sides of the central foil 98 and forming the anode conductor elements 84 can be electrically contacted and controlled independently of each other. Since the application nozzle 56 ″ is designed to be flat in its end treatment area 92, when the treatment end 82 is inserted into the dental pocket 8, the surface of the application nozzle 56 ″ is generally substantially parallel to the implant surface. This means that each conductor element 84 is located on the side of the central foil 98 facing the implant 2 or on the side facing away from the implant 2. Since the side facing the implant 2 (due to the application opening 132) is relatively short compared to the side facing away from the implant surface, it can be easily determined by resistance / conductance measurement which anode conductor element 84 faces the implant 2 and which does not face the implant 2.

[0123] This can be very advantageous and desirable, since effective and reliable energization of the implant 2 is desired and expected. On the other hand, the associated energization of the surrounding soft tissue 8 can also be undesirable and can result in partial damage or even death of the tissue. To avoid this, dedicated energization can be provided, thereby using the side of the application nozzle 56" facing the implant 2. Since the energized anode 84 is directly and very close to the implant, it is not Figures 3 to 9 Compared to the variant in FIG. 1 , the possibly very low current flowing through the tissue is minimized to a maximum value and no longer exists or hardly exists anymore.

[0124] FIG. 16 shows another alternative embodiment of an application nozzle 56'", which is also considered to be independently inventive, especially with respect to its manufacturing method, and is shown in the order of its manufacturing steps. This embodiment of the application nozzle 56'" is also based on the principle of film stacking construction, in which multiple functional films are used, which are appropriately folded at various stages, thereby simplifying the construction method and being suitable for mass production.

[0125] In this variant, Fig.16a The media channel film 140 shown in the figure is provided as a central functional film, which will form the central film of the film layer package in the completed application nozzle 56 ″ ′. Similar to the above-mentioned embodiments, this includes a plurality of film sheets 142, which are designed and positioned so as to form a media channel 76 and an application opening 74 branching from and connected to the media channel 76. The central media channel foil 140 is embedded or wrapped in a surrounding anode foil 144, as shown in FIG. Fig.16b As shown. Anode foil 144 is stamped from a single sheet of foil, has the appropriate contours, and is folded around dielectric channel foil 140 at folding points 146, thereby covering both sides and thus sealingly covering dielectric channel 76. Internally, therefore, Fig.16b Not visible in the representative figure, the anode foil 144 is provided with a conductor track layer suitable for the "underlying" dielectric channel 76, by which during operation an electrical contact is established with the electrolyte guided in the dielectric channel 76. According to one aspect of the invention, this anode conductive path layer 148 can be printed on the inside of the anode foil 144, and according to another aspect of the invention, this anode conductive path layer comprises a suitably selected conductive material, in particular a metal such as gold or titanium. However, preferably, according to another aspect of the invention, and in view of the advantageous manufacturing price, in particular for large-scale production, the anode conductor track layer 148 essentially consists of silver, and in a preferred and inventive further development, in view of the intended contact with the electrolyte, the anode conductor track layer 148 has a carbon coating (preferably also printed thereon).

[0126] In order to achieve electrical contact with the anode conductor track layer 148, which is actually located inside the package design, a folding of the anode foil 144 is also provided in an independently inventive manner in the head region of the molded foil stack. According to one aspect of the invention, the molded foil forming the anode foil 144 has two folded wings 150 in its head region (one at the “top” in the folded state, e.g. Fig.16b These folded wings 150 (on which the anode conductor track layer 148 extends to the contact area 152) are folded along the folded edge 154 after the anode foil 144 has been applied to the dielectric channel foil 140 and are therefore located on the top or bottom anode foil 144. Fig.16b In the illustration of FIG. 1 , this can be identified by the side edges 156 on the anode foil 144 formed by the overlying folded wings 150. This design achieves in a simple and cost-effective manner that the contact areas 152 are located on the top and bottom sides outside the formed foil stack so that electrical contact can be made to the anode conductor track layer 148.

[0127] The resulting foil package is then embedded or wrapped in a surrounding cathode foil 158 in a similar manner, such as Fig.16c 1. The cathode foil 158, suitably outlined and stamped on the foil, is folded around the package of dielectric channel foil 140 and anode foil 144 at folding points 160, thus now forming the outermost foil layers of the now five-layer foil package on both sides. On the outer side of the cathode foil 158, so that electrical contact is easily made, a cathode conductor track layer 162 is provided. This in turn is connected to contact areas 164. According to one aspect of the invention, the cathode foil 158 is dimensioned so that after attachment its edge abuts against the side edge 156 of the folded folding leaf 150, so that the surface of the resulting foil package is almost flat.

[0128] In further processing steps, such as Fig.16d As shown, according to one aspect of the present invention, the cathode foil 158 is insulated on the outside by applying a suitable insulating material as an insulating layer 165. According to one aspect of the present invention, the insulating layer 165 can also be applied by a printing process, preferably a screen printing process similar to the above-mentioned process, wherein the application can be performed before or after the cathode foil 158 is applied to the anode foil 144.

[0129] As a result, after these steps, Fig.16d The nozzle body 166 shown in FIG. 5 can be used as an application nozzle 56 ″′. The treatment end 168 of the nozzle body 166 is Fig.17166 . The layered structure of the film stack that forms the nozzle body 166 resulting from the folding can be clearly seen. The end region of the treatment end 168 also remains free of the insulating layer 165, so that the cathode conductor track layer 162 is freely accessible in this region. Thus, the cathode conductive path layer 162, which is divided into a plurality of parallel conductors 170 in this region, can be used to contact the implant in the desired manner.

[0130] Fig.16d The contact head of the nozzle body 166 (which can be used as the application nozzle 56"') shown in Fig.18 14 is shown in an enlarged side view. The layered structure of the film stack is also clearly visible here. It can also be seen (as mentioned above) that the contact areas 152 and 164 of the anode conductive path layer 148 and the cathode conductive path layer 162 are present at the top and bottom of the foil stack and therefore exist in pairs, which is due to the folding design used and the symmetrical structure of the foil stack resulting therefrom. In addition, it can be clearly seen in this embodiment (provided according to one aspect of the invention that is considered to be independently inventive) that in each case a free space 172 is provided between the pairs of contact areas 152, 164 in the media channel film 140, which allows the stack to deform elastically inwardly in the region of the contact areas 152, 164 due to the elastic properties of the film. In this embodiment, the inlet 174 of the media channel 76 can also be recognized, through which it can be connected to a suitable media storage container.

[0131] According to one aspect of the invention, the application nozzle 56"' comprises a nozzle body 166, which can be used to provide a treatment head 180 by providing it with a suitable housing 182 in the connection area. The treatment head 180 thus formed is considered to have independent inventiveness. Fig.19 The partial cross-sectional view is shown in Fig. 20 . The nozzle body 166 is thus guided into the housing 182 in a manner which is considered to be independently inventive by means of a suitable elastic material overmolding, preferably a rubber-silicone overmolding. Similarly, the fluid inlet, i.e. the connection of the medium inlet 174 to the corresponding medium container, can be made of an elastic material or by means of an elastic overmolding. Thus, in addition to the high tightness of the system which is advantageous for use, the nozzle body 166 itself and the correct alignment relative to the handpiece can also be achieved in a particularly simple manner, just like the sealing of the supply hose, the sealing with the handpiece (including the connection contacts), so that additional sealing elements such as O-rings can be omitted.

[0132] In an embodiment that is considered to be independently inventive, the treatment end 168 of the nozzle body 166 can be designed to automatically detect contact with the component to be treated (especially the dental implant 2) through appropriate conductor wiring of the cathode conductor track layer 162. In this embodiment that is considered to be independently inventive, the conductors 170 of the cathode conductor track layer 162 in the treatment end 168' region (i.e., the transition point 160 region) are not designed to be in continuous contact with each other, but are subdivided into two conductor groups that are interlocked in a comb-like manner. The conductors 170a of the first conductor group and the conductors 170b of the second conductor group are alternately arranged in the region of the transition point 160, and the conductors 170a of the first conductor group are only connected to one of the external contact areas 164, while the conductors 170b of the second conductor group are only connected to the other contact area 164. Therefore, in the "normal" state, there is no conductive connection between the two contact areas 164, and the mechanical and / or electrical contact with the component to be treated 2 can be detected based on the detection of the conductive connection between the two contact areas 164.

[0133] For the electrical contacting of the application nozzle 56'', according to an aspect which is regarded as independently inventive, a targeted use of the deformability of the foil stack of the nozzle body 166 is provided. This is based on the recognition that elastic elements are usually provided for electrical plug connections, by means of which the electrical contact is reliably established after mechanical contact is made using the spring force of such an element. In order to use this for the nozzle body 166 in a particularly reliable and simple manner, it is provided to use the spring force of the foil stack of the nozzle body 166, which foil stack itself is already essentially elastic. For this purpose, the above-mentioned free space 172 is provided in an inventive manner between each pair of contact areas 152, 164. In order to establish an electrical connection in the sense of a plug connection, a contact plug 190 is provided, which is Fig. 22 In the perspective front view, Fig.23 According to one aspect of the present invention, the contact plug 190 includes a front contact area 192 for establishing a firm mechanical and electrical contact with the treatment head 180, and a back contact area 194 that can be connected to a corresponding other system.

[0134] In the front contact region 192, a contact plug 190 is provided, on the one hand, for establishing a reliable mechanical contact with the treatment head 180. The contact plug therefore comprises jaw-shaped housing halves 196, which are arranged relative to one another to form a clear gap 198. The dimensions of the clear gap 198 are within the manufacturing tolerances and are approximately slightly smaller than the total height of the film stack forming the nozzle body 166. The aim of this design is that the film stack should be able to be inserted into the clear gap 198 without excessive mechanical stresses, so that the film stack should be slightly compressed and thus fixed. This essentially enables the nozzle body 166 to be reliably mechanically connected in the front contact region 192 of the contact plug.

[0135] Furthermore, the contact plug 190 includes two pairs of electrical contact plugs 200, 202 in its front contact region 192, which are electrically connected to the associated back contact plugs 204, 206, respectively. The front contact plugs 200, 202 are arranged in pairs, respectively, for making electrical contact with the contact regions 152, 164. In order to establish reliable electrical contact, in an embodiment regarded as having independent inventiveness, the elasticity of the foils of the foil stack forming the nozzle body 166 is utilized in combination with the above-mentioned free space 172. That is, the free space 172 allows the anode foil 144 and the cathode foil 158 to deform back into the free space 172 in this space region. Therefore, according to this aspect of the invention, the spacing of each pair of contact plugs 200, 202 is less than the total thickness of the foil stack, and therefore also less than the clear width of the clear gap 198. By inserting the foil stack into the front contact region 192 , the contact plugs 200 , 202 are thereby pushed in a manner considered to be inventive onto the associated contact region 152 , 164 , respectively, whereby the latter resiliently retreat into the corresponding free space 172 due to their dimensions.

[0136] This design allows for the spring contact typically provided by electrical contacts in the nozzle body, which is designed to be a disposable product, thus keeping the reliability, service life and wear of other system components correspondingly low.

[0137] Reference numerals list

[0138] 1.1' Treatment system

[0139] 2 Dental Implants

[0140] 4 External thread

[0141] 6 Jaw

[0142] 8 Pockets

[0143] 10 Soft tissue

[0144] 12 Handle

[0145] 14 Batteries

[0146] 16 Storage Containers

[0147] 18 Transition piece

[0148] 20 Treatment head

[0149] 22, 24 Supply pipeline

[0150] 26 Connection side

[0151] 28 Treatment end

[0152] 30 Matrix

[0153] 32 media channels

[0154] 34, 36 Conductor elements

[0155] 38 Launch Range

[0156] 40 Exit opening

[0157] 52 Supply Units

[0158] 54 Handle

[0159] 56, 56', 56", 56"' Application Nozzles

[0160] 57 PVC or silicone hose

[0161] 58 Electrolyte Ampoule

[0162] 60 Connection cable

[0163] 62 Control Unit

[0164] 64 Buffer battery

[0165] 66 Pumps

[0166] 67 Housing

[0167] 68 Hose valve

[0168] 70 Pressure Chamber

[0169] 72 Nozzle body

[0170] 74 Application openings

[0171] 76 media channels

[0172] 78 Electrical conductor elements

[0173] 80 Connection area

[0174] 82 Treatment end

[0175] 84, 86 Conductor elements

[0176] 88 Media connection

[0177] 90 branch points

[0178] 92 Emission Scope

[0179] 94 Foil

[0180] 96, 98 Foil layer

[0181] 100 Gasket

[0182] 102 Nut

[0183] 104 end

[0184] 106 Wire

[0185] 107 Contact opening

[0186] 108 Nut

[0187] 110 Recording Slots

[0188] 112 Conductor wire

[0189] 114 Grooves

[0190] 116 End section

[0191] 118 Contact hole

[0192] 120 Metal coating

[0193] 122 Nut

[0194] 124 Tongue element

[0195] 126 Contact electrode

[0196] 128, 130 Conductor elements

[0197] 132 Application openings

[0198] 140 medium channel film

[0199] 142 Foil

[0200] 144 Anode foil

[0201] 146 folding points

[0202] 148 Anode track layer

[0203] 150 Folding Window Frame

[0204] 152 Contact Area

[0205] 154 Folded Edge

[0206] 156 side edge

[0207] 158 Cathode Foil

[0208] 160 Overlap Points

[0209] 162 cathode track layer

[0210] 164 Contact area

[0211] 165 Insulation layer

[0212] 166 Nozzle body

[0213] 168, 168' Treatment end

[0214] 170, 170a, 170b conductor

[0215] 172 Free Space

[0216] 174 Input

[0217] 180 Treatment Head

[0218] 182 Housing

[0219] 190 Contact plug

[0220] 192 front contact area

[0221] 194 Back contact area

[0222] 196 Shell halves

[0223] 198 Light Gap

[0224] 200, 202 electrical contact plug

[0225] 204, 206 Back contact plug

[0226] d Foil thickness

[0227] D Total thickness

Claims

1. An application nozzle (20, 56, 56', 56") for applying dental active substances in a patient's oral cavity, in particular for cleaning implant parts (2) contaminated by biofilm, comprising a base or nozzle body (30, 72) in which at least one medium channel (32, 76) is integrated on the one hand and a plurality of electrical conductor elements (34, 36, 84, 86) on the other hand, the base or nozzle body (30, 72) being designed to extend longitudinally flat from a connection area (26, 80) to a free treatment end (28, 82) and the cross section of the base or nozzle body (30, 72) tapers gradually in the direction of the treatment end (28, 82).

2. The application nozzle (20, 56, 56', 56") according to claim 1, wherein The conductor element (34, 84) is located in or on one of the medium channels (32, 76) so that the conductor element (34, 84) is wetted by the clean electrolyte flowing in the corresponding medium channel (32, 76).

3. The application nozzle (20, 56, 56', 56") according to claim 1 or 2, wherein: The at least one medium channel (32, 76) branches off in the base or nozzle body (30, 72) and opens on the outlet side into a plurality of application openings (40, 74) arranged in an outflow region (38, 92) in the region of the treatment end (28, 82).

4. The application nozzle (20, 56, 56', 56") according to any one of claims 1 to 3, wherein: At least two conductor elements (34, 84) to which a common first electrical polarity is assigned are integrated into the base or nozzle body (30, 72) of the application nozzle.

5. The application nozzle (20, 56, 56', 56") according to claim 4, wherein The conductor element (34, 84) assigned with the first electrical polarity is located in or on one of the medium channels (32, 76), so that the conductor element (34, 84) assigned with the first electrical polarity is wetted by the cleaning electrolyte supplied from the common electrolyte ampoule when the cleaning electrolyte flows in the medium channel (32, 76).

6. The application nozzle (20, 56, 56', 56") according to any one of claims 1 to 5, wherein: Viewed in the longitudinal direction, a conductor element (36, 86) to which the second electrical polarity is assigned protrudes beyond the treatment end (28, 82) formed by the base or nozzle body (30, 72).

7. The application nozzle (20, 56, 56', 56") according to any one of claims 1 to 6, wherein: A plurality of application openings (40, 74) are arranged along an outflow direction aligned transversely to the longitudinal axis direction.

8. Application nozzle (20, 56, 56', 56") according to one of claims 1 to 7, the base or nozzle body (30, 72) of the application nozzle having a triangular-shaped contour in plan view.

9. The application nozzle (56, 56', 56") according to claim 1, wherein the nozzle body (72) of the application nozzle is designed as a laminate of a plurality of films (94).

10. The application nozzle (56, 56', 56") according to claim 9, wherein The media channels (76) in the film layers (96, 98) of the laminate are formed by recesses (114) embedded in the film of the respective layer.

11. Application nozzle (56, 56', 56") according to claim 9 or 10, the medium channel (76) of the application nozzle being provided with an integrated gasket (100).

12. The application nozzle (56, 56', 56") according to claim 9, wherein the nozzle body (72) of the application nozzle is composed of at least three film layers (96, 98), wherein: A plurality of film sheets (94) forming a central film layer (98) disposed between two adjacent film layers (96) are formed of a harder film material than the two adjacent film layers (96).

13. The application nozzle (20, 56, 56', 56") according to any one of claims 1 to 12, which is designed as a disposable product.

14. A system (1, 1') for cleaning components contaminated by biofilm, in particular implant parts, having an application nozzle (20, 56, 56', 56") according to one of claims 1 to 12, and a handle (12, 54), the handle being provided with a plurality of electrical and media connections, so that both the electrical conductor elements (34, 36, 84, 86) and the media channels (32, 76) of the application nozzle (20, 56, 56', 56") can be connected to corresponding electrical or media supply lines in the handle (12, 54) or in an associated transition piece. Media supply lines in the handle (12, 54) or in an associated transition piece.

15. System (1) according to claim 13, wherein a replaceable container (16) for cleaning electrolyte is arranged in the handle (14) of the system.

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