EP3383802A1 - Appareil sanitaire pourvu d'un dispositif de désinfection - Google Patents

Appareil sanitaire pourvu d'un dispositif de désinfection

Info

Publication number
EP3383802A1
EP3383802A1 EP16805786.7A EP16805786A EP3383802A1 EP 3383802 A1 EP3383802 A1 EP 3383802A1 EP 16805786 A EP16805786 A EP 16805786A EP 3383802 A1 EP3383802 A1 EP 3383802A1
Authority
EP
European Patent Office
Prior art keywords
water
electrode
water channel
sanitary
per liter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16805786.7A
Other languages
German (de)
English (en)
Inventor
Roland Widler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Geberit International AG
Original Assignee
Geberit International AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Geberit International AG filed Critical Geberit International AG
Publication of EP3383802A1 publication Critical patent/EP3383802A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/08—Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices ; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • C02F2001/46138—Electrodes comprising a substrate and a coating
    • C02F2001/46147—Diamond coating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/46115—Electrolytic cell with membranes or diaphragms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C02F2201/4613—Inversing polarity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4616—Power supply
    • C02F2201/4617—DC only
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/20—Total organic carbon [TOC]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/23—O3
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/06—Mounted on or being part of a faucet, shower handle or showerhead

Definitions

  • the present invention relates to a sanitary device with a disinfection device according to the preamble of claim 1.
  • Disinfection devices in connection with sanitary articles such as shower toilets or outlet fittings are known from the prior art.
  • EP 2 599 926 shows such a disinfection device.
  • the invention is a particularly preferred object to provide a sanitary device with a treatment device, which overcomes the disadvantages of the prior art.
  • the treatment of the water should be improved.
  • a sanitary device comprises a water channel bounded by a wall and a treatment device arranged in the water channel for the treatment, in particular for the disinfection of water guided in the water channel.
  • the treatment apparatus comprises a cell housing and an electrochemical or electrolytic cell arranged in the cell housing with an electrode packet having at least one electrode or at least one pair of electrodes.
  • the electrode or the Electrode pair can be controlled with electrical parameters for generating ozone from the water as a disinfectant.
  • the treatment device in particular the cell, is configured such that the germ count with respect to pathogenic germs, such as Legionella and / or Pseudomonas, in the treated or disinfected water is less than 10 microbes per milliliter and / or that the microbial count is reduced by at least a factor of 1000 becomes.
  • pathogenic germs such as Legionella and / or Pseudomonas
  • the number of bacteria before the treatment device and after the treatment device can be considered, the latter being at least 1000 times smaller.
  • the disinfection is carried out in such a way that the germ count reduction is ensured even at very low conductivity of the water.
  • the electrodes are designed such that no disturbing amounts of lime are deposited on the electrodes.
  • suitable Umpolungsparameter be chosen, whereby the disturbing amounts of lime are removable.
  • the electrodes are designed such that the space requirement of the treatment device is minimal despite high ozonation performance.
  • the electrodes are at least partially or completely coated with a boron-doped diamond coating.
  • a boron-doped diamond coating As a result, water is activated directly to oxidatively acting intermediates without oxygen.
  • the electrode comprises structured silicon on which the boron-doped diamond coating is applied. This in order to reduce the manufacturing costs.
  • the flow conditions at the electrodes can also be optimized.
  • the electrodes are in contact with a polyelectrolyte membrane.
  • the polyelectrolyte membrane produces a limited conductive contact between the positive pole and the negative pole of the electrode. At the contact points thereby the ozone formation is promoted and a good disinfection even with unfavorable electrical Conductivity or electrical resistance of the water reached.
  • the electrode package is preferably arranged in a cuboid region of maximally 20 ⁇ 40 ⁇ 10 millimeters.
  • the cell housing in its outer dimension is smaller than 50 x 35 x 15 millimeters.
  • two separate water channels are provided, wherein in each of the water channels at least one treatment device is arranged.
  • the electrodes are subjected to electrical parameters such as electrical voltage and current in such a way that the ozone concentration inside the cell is high enough for the germicidal effect and / or that the ozone concentration at the outlet of the sanitary device is less than 50 micrograms per liter.
  • the current is about 2 amperes or greater than 2 amperes, which corresponds to a current density of about 14 mA per cm of A 2.
  • various operating modes are conceivable. Depending on the choice of operating mode, a different ozone concentration is predetermined, the Qzon concentration preferably being achieved by a change in the electrical parameters.
  • the mode is selected from the group of system cleaning and personal cleansing, wherein the ozone concentration in system cleaning is different than the ozone concentration in body cleansing.
  • the ozone concentration is intended for body contact with the user.
  • the volume flow is preferably in the range of 0.3 to 1.1 liters per minute and / or that the ozone concentration in the range of 0.03 to 0.05 milligrams per liter, in particular 0.045 milligrams per liter.
  • the system cleaning mode includes various types of cleaning. These are variants of system cleaning, which can be performed alone or in any combination with each other.
  • the system cleaning comprises a cleaning of the surfaces in the region of the outlet.
  • the volume flow is preferably in the range of 0.3 to 1.1 liters per minute and the ozone concentration is preferably in the range of 0.25 to 0.45 milligrams per liter, in particular 0.35 milligrams per liter.
  • the system cleaning comprises a cleaning of the surfaces of the shower toilet.
  • the interior of the shower toilet can be cleaned.
  • the volume flow is preferably in the range of 0.3 to 0.6 liters per minute and the ozone concentration is preferably in the range of 0.25 to 0.45 milligrams per liter, in particular 0.35 milligrams per liter.
  • the treated water is preferably atomized, so that a full-surface wetting of the toilet bowl is achieved.
  • the system cleaning comprises a cycle cleaning, wherein for the circulation cleaning the treated with the treatment device water is passed at least once through at least part of the water channel of the shower system. Preferably, as far as possible the entire water channel is flowed through by the treated water. The said part of the water channel is therefore as long as possible.
  • the volume flow in the third variant is preferably in the range from 0.3 to 1.1 liters per minute and the ozone concentration is preferably in the range from 0.25 to 0.45 milligrams per liter, in particular 0.35 milligrams per liter.
  • the advantage of the recycling process is that the treated water, ie the germ-reduced water, can circulate in the water channel of the shower system, so that the water channel can be cleaned. This prevents contaminants or germs from forming inside the shower system.
  • the circuit is preferably such that it covers as much of the length of the water channel as possible.
  • the geometric parameters of the electrode and / or the flow rate or the flow rate through the electrode and / or the flow time through the electrode is such that the ozone concentration at the outlet of the sanitary device is less than 50 micrograms per liter.
  • the ozone concentration is reached at the outlet of the sanitary device less than 50 micrograms per liter.
  • a sensor for direct or indirect measurement of the ozone concentration is provided, wherein the electrical parameters based on the measured value of the sensor be adjusted.
  • a sensor may be arranged which serves to measure the content of organic carbon in the water, for example based on a UV-LED sensor with a suitable wavelength range. Other ways of measuring the content of organic carbon are also conceivable.
  • the sanitary device may comprise an optical and / or acoustic display element.
  • a catalyst in particular a platinum catalyst or another catalyst, is used to limit the ozone concentration.
  • the electrode is controlled so that when the content of organic carbon in the water is exceeded, a limit of 1 milligram per liter of ozone production is increased and / or a warning signal is output.
  • the warning signal can be provided an optical and / or acoustic display element.
  • the Reynolds number of the water channel in the region of the electrodes is greater than 3000
  • a receiving opening is arranged in the wall of the water channel, which opens into the water channel, wherein the receiving opening of the receptacle of the cell housing is used.
  • the shape of the cell housing in the area which is in the installed state in the receiving opening, with exact fit with parts of the receiving opening.
  • a seal is arranged between the receiving opening and the cell housing.
  • the cell housing is designed as a replaceable cartridge.
  • the Cartridge can be easily replaced or cleaned in case of revision.
  • the water is heated before being passed through the treatment device to 20 ° C to 45 °, in particular to 33 ° C to 39 ° C.
  • the heater brings the water for body cleansing to a temperature in the range of 5 ° C to 40 ° C and / or for system cleaning to a temperature in the range of 5 ° C to 25 ° C or in one Range from 5 ° C to 40 ° C.
  • the said heating of the water is preferably carried out in a storage tank or in a water heater.
  • the rinsing process preferably takes place in several phases.
  • the electrical parameters are reversible, such that lime lying on the electrode is removable.
  • a shower toilet comprises a sanitary device as described above and a shower arm, wherein said water channel is the water channel of the shower arm or said water channel opens into the water channel of the shower arm and / or wherein said water channel is arranged as a shower arm independent water channel, with which the shower arm is cleanable.
  • the disinfection of the guided water in the water channel is done in a single flushing.
  • Figure l is a schematic view of a sanitary device comprising a water channel bounded by a wall and a treatment device arranged in the water channel.
  • Fig. 2 is a schematic view of the treatment device.
  • FIG. 1 shows a sanitary device 1 comprising a water channel 3 delimited by a wall 2 and a treatment device 4 arranged in the water channel for the treatment or disinfection of water guided in the water channel 3.
  • the treatment device 4 comprises a cell housing 5 and an electrochemical or electrolytic cell arranged in the cell housing 5 with an electrode packet 6 having at least one electrode.
  • the at least one electrode can be controlled with electrical parameters for generating ozone from the water as a disinfectant.
  • the disinfection with the ozone takes place in such a way that the germ count with regard to pathogenic germs, such as legionella and / or pseudomonads, in the treated water is less than 10 germs per milliliter.
  • the treatment device 4 can be supplied by different water sources, for example, by a continuous flow heater 7, by a water heater 7
  • the water to be disinfected can be heated before being fed to the treatment device 4.
  • Advantageous temperature ranges are 20 ° C to 45 °, in particular 33 ° C to 39 ° C. Other temperatures are also conceivable.
  • the cell housing 5 comprises an inlet 10, via which the water can flow into the cell housing 5, and an outlet 11, via which the water can flow out of the cell housing 5.
  • the electrode package 6 is arranged inside the cell housing 5. The electrode package 6 is supplied via electrical connections 12 with electrical energy.
  • the electrodes are coated with a boron-doped diamond coating.
  • the coating can completely surround the area of the electrodes coming into contact with the water. Alternatively, the coating can also be selectively arranged.
  • the electrode may comprise structured silicon. As a result, an advantageous coating can be achieved.
  • the cell housing preferably has a maximum size of 50 x 35 x 15 millimeters.
  • the electrode package is then designed correspondingly smaller.
  • the electrode package is arranged in a cuboid area of a maximum of 20 ⁇ 40 ⁇ 10 millimeters.
  • the treatment device 4 is preferably used in conjunction with a shower device of a shower toilet.
  • two different water channels are present, namely a first water channel, in which a first treatment device is arranged, and a second water channel, in which a second treatment device is arranged.
  • the first water channel is preferably designed such that it serves to clean the body of a user of the shower toilet and the second water channel is preferably designed such that it serves for the cleaning of the outer parts of the first water channel.
  • the first water channel is preferably a shower arm and the second water channel is arranged so that the shower arm can be cleaned with the treated or disinfected water.
  • the electrode is preferably supplied with electrical parameters such that the ozone concentration at the outlet of the sanitary device is less than 50 micrograms per liter. Depending on the operating mode, other advantageous ozone concentrations can be used.
  • the volume flow is preferably in the range of 0.3 to 1.1 liters per minute.
  • the ozone concentration is in the range of 0.03 to 0.05 mg per liter, in particular of 0.045 mg per liter.
  • the volume flow is here for example in the range of 0.3 to 1.1 liters per minute.
  • the ozone concentration is preferably 0.25 to 0.45 mg per liter, in particular 0.35 mg per liter.
  • the volume flow is preferably in the range between 0.3 to 1.1 liters per minute in a circuit cleaning.
  • the ozone concentration is preferably in the range of 0.25 to 0.45 mg per liter, in particular 0.35 mg per liter.
  • a sensor is arranged, which detects the ozone concentration and the said electrical parameters are adjusted based on the detected ozone concentration.
  • a sensor can be arranged which measures the content of the organic carbon in the water.
  • the sanitary device may have an optical or acoustic display element, not shown in the figures, which outputs a corresponding warning signal when the ozone concentration and / or the content of organic carbon is exceeded.
  • the ozone content can be determined, for example, by the arrangement of a catalyst, in particular a platinum catalyst to be limited.

Landscapes

  • Public Health (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Molecular Biology (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un appareil sanitaire (1) comprenant une conduite d'eau (3) délimitée par une paroi (2) et un dispositif de traitement (4) disposé dans la conduite d'eau et servant au traitement, notamment à la désinfection de l'eau circulant dans la conduite d'eau (3), ledit dispositif de traitement (4) comprenant un logement de cellule (5) et une cellule électrochimique ou électrolytique, disposée dans le logement de cellule (5), comportant un ensemble d'électrodes (6) comprenant au moins une électrode, cette dernière pouvant être commandée notamment au moyen de paramètres électriques pour produire de l'ozone à partir de l'eau, en tant qu'agent de traitement ou agent désinfectant. Le dispositif de traitement (4) est conçu de sorte que le nombre de germes pathogènes, tels que les légionelles et/ou les pseudomonas, dans l'eau traitée est inférieur à 10 germes par millilitre.
EP16805786.7A 2015-12-04 2016-12-01 Appareil sanitaire pourvu d'un dispositif de désinfection Withdrawn EP3383802A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP15198006 2015-12-04
EP16174402 2016-06-14
EP16174400 2016-06-14
EP16174398 2016-06-14
PCT/EP2016/079400 WO2017093385A1 (fr) 2015-12-04 2016-12-01 Appareil sanitaire pourvu d'un dispositif de désinfection

Publications (1)

Publication Number Publication Date
EP3383802A1 true EP3383802A1 (fr) 2018-10-10

Family

ID=57482398

Family Applications (3)

Application Number Title Priority Date Filing Date
EP16805785.9A Withdrawn EP3383801A1 (fr) 2015-12-04 2016-12-01 Système de wc-douche comprenant un dispositif de traitement à l'ozone
EP16805784.2A Withdrawn EP3383800A1 (fr) 2015-12-04 2016-12-01 Ensemble wc-douche
EP16805786.7A Withdrawn EP3383802A1 (fr) 2015-12-04 2016-12-01 Appareil sanitaire pourvu d'un dispositif de désinfection

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP16805785.9A Withdrawn EP3383801A1 (fr) 2015-12-04 2016-12-01 Système de wc-douche comprenant un dispositif de traitement à l'ozone
EP16805784.2A Withdrawn EP3383800A1 (fr) 2015-12-04 2016-12-01 Ensemble wc-douche

Country Status (3)

Country Link
EP (3) EP3383801A1 (fr)
CN (3) CN108349759A (fr)
WO (3) WO2017093384A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111561784A (zh) * 2020-04-03 2020-08-21 华帝股份有限公司 一种集成有臭氧杀菌装置的燃气热水器及其控制方法
DE102020129850B4 (de) * 2020-11-12 2026-02-12 Bwt Holding Gmbh Wasserinstallationsanlage, deren Verwendung und Verfahren zur Aufbereitung von Trinkwasser

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Publication number Priority date Publication date Assignee Title
JPH1110177A (ja) * 1997-06-19 1999-01-19 Inax Corp 浴室排水のオゾン水による浄化再利用装置
IL121880A0 (en) * 1997-10-01 1998-03-10 U E T Recycling Of Ind Water L Water treatment method and device
US6453799B1 (en) * 2000-11-14 2002-09-24 Ecoaid Corp. Automatic vending machine with functional water generator
US20100135869A1 (en) * 2007-05-28 2010-06-03 Linxross, Inc. Ozone generators
WO2009046563A2 (fr) * 2007-10-10 2009-04-16 Hanspeter Steffen Procédé et exécution technique permettant la désinfection des mains, de parties du corps et de produits agricoles à l'eau électrolysée au moyen de radicaux oxydants et par la technologie de projection électrostatique
CN201393961Y (zh) * 2009-05-12 2010-02-03 成都市温江星火专利开发研究所 坐式淋浴装置
PL2319806T3 (pl) * 2009-10-06 2017-08-31 Geberit International Ag Armatura odpływu wody zawierająca ogniwo elektrochemiczne i sposób jej eksploatacji
CN101712501A (zh) * 2009-11-26 2010-05-26 浙江工业大学 一种含氯酚类化合物废水的处理方法及其专用装置
JP5113891B2 (ja) * 2010-04-30 2013-01-09 アクアエコス株式会社 オゾン水製造装置、オゾン水製造方法、殺菌方法及び廃水・廃液処理方法
JP5093762B2 (ja) 2010-07-28 2012-12-12 Ｔｏｔｏ株式会社 衛生洗浄装置
EP2426282B1 (fr) * 2010-09-07 2017-10-25 Geberit International AG Dispositif de rinçage
WO2013109789A1 (fr) * 2012-01-17 2013-07-25 Electrolytic Ozone Inc. Système de purification de l'eau
HRP20120276A2 (hr) * 2012-03-28 2013-09-30 Višnja Oreščanin Postupak i uređaj za elektrokemijsko pročišćavanje otpadnih industrijskih voda i voda za piće
ES2536239T3 (es) * 2012-07-26 2015-05-21 Manfred Völker Instalación RO y procedimiento para la desinfección de conductos de la instalación RO
US9486817B2 (en) * 2013-03-15 2016-11-08 Delta Faucet Company Ozone shower device

Also Published As

Publication number Publication date
CN108349760A (zh) 2018-07-31
WO2017093385A1 (fr) 2017-06-08
EP3383801A1 (fr) 2018-10-10
EP3383800A1 (fr) 2018-10-10
WO2017093383A1 (fr) 2017-06-08
CN108349758A (zh) 2018-07-31
CN108349759A (zh) 2018-07-31
WO2017093384A1 (fr) 2017-06-08

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