[go: up one dir, main page]

WO2006017875A1 - Masque respiratoire - Google Patents

Masque respiratoire Download PDF

Info

Publication number
WO2006017875A1
WO2006017875A1 PCT/AT2005/000327 AT2005000327W WO2006017875A1 WO 2006017875 A1 WO2006017875 A1 WO 2006017875A1 AT 2005000327 W AT2005000327 W AT 2005000327W WO 2006017875 A1 WO2006017875 A1 WO 2006017875A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
mask according
breathing mask
sheet
laminated core
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.)
Ceased
Application number
PCT/AT2005/000327
Other languages
German (de)
English (en)
Inventor
Camillo Holecek
Klaus Engelhart
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.)
Donauwind Erneuerbare Energiegewinnung und Beteiligungs & Co KG GmbH
Original Assignee
Donauwind Erneuerbare Energiegewinnung und Beteiligungs & Co KG GmbH
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 Donauwind Erneuerbare Energiegewinnung und Beteiligungs & Co KG GmbH filed Critical Donauwind Erneuerbare Energiegewinnung und Beteiligungs & Co KG GmbH
Publication of WO2006017875A1 publication Critical patent/WO2006017875A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/003—Means for influencing the temperature or humidity of the breathing gas

Definitions

  • the invention relates to a respiratory mask for the oral and / or nasal area, which comprises a mask body and a device flowing through the respiratory air
  • Respiratory masks are naturally known for a wide variety of applications According to the use of these known respiratory masks, devices and / or filters are provided in the respiratory masks, which primarily clean the air to be inhaled
  • GB 2 352 978 A discloses a filter which is intended to filter out dust, pollen or smoke from the ambient air before it is inhaled
  • US Pat. No. 4,821,71 A discloses a respiratory protective device which has a regeneration cartridge for the regeneration of the respiratory air
  • WO 03/099 366 A a device for warming and moistening respiratory gases is known, which consists of two passive heat-moisture exchangers and an intermediate active Anwarm moistening part with an external control device exists
  • a face mask is known from US Pat. No. 4,269,183 A, which temporarily stores the respiratory air in a container and controls the supply and removal via valves
  • a respiratory mask is known, which is worn only over the nose This mask is only for moistening the breath This is done via an insert that is saturated with lithium chloride and hygroscopic This mask serves as a sleep mask in long-term flights and should prevent the mucous membranes from drying out
  • a medical device is known from DE 195 15 739 C2, which is to prevent collapse of the respiratory mucous membranes during sleep This device works with mechanically generated overpressure and has a heat exchanger for cooling the compressed air to a temperature as before compression
  • the object of the invention is to provide a respiratory mask of the type mentioned, on the one hand avoids the disadvantages of the known devices and on the other hand, an unimpaired respiratory function in the exercise of activities, especially in sports activities allowed
  • the erfmdungsgedorfe breathing mask is characterized in that the device is designed as a heat exchanger, the einzatmende, preferably cold, ambient air is preheated by the warm content of the exhaled breath and the intermediate storage of the warm content of exhaled breath in the heat exchanger takes place with the inventive breathing mask, it is possible for the first time In the case of mouth breathing, to bring the air to be inhaled to the level, in terms of temperature and humidity, which is given by the nasal mucous membranes during nasal breathing
  • the normal nasal breathing is not sufficient to meet the oxygen demand of the body Therefore, by breathing in the mouth the respiratory rate and respiratory rate, also back to the low flow resistance, increased
  • the use of the inventive breathing mask is proposed The occurring in unfavorable weather conditions infections of the respiratory organs are thereby avoided
  • the inhalation of air is moistened and preheated
  • the moisture and heat is removed from the exhaled air by cooling and fed back when inhaling the air
  • This function takes the inventive heat exchanger It therefore needs to operate the inventive breathing mask no external energy or extraneous moisture
  • the very low flow resistance of the inventive breathing mask ensures an unimpaired respiratory function and sufficient oxygen supply Furthermore, nasal breathing is not hindered However, as is well known, nasal breathing at full physical performance contributes only a few percent of total respiration
  • a further advantage of the respiratory mask according to the invention is then to be seen that icing at extremely low temperatures is avoided by the heat pipe in the heat exchanger.
  • the effect of the respiratory mask according to the invention can be individually adapted or changed. This can be achieved, on the one hand, by various exchangeable variants of the device, ie the heat exchanger, and / or by special structures of the heat exchanger, preferably a multi-layered structure carried out Some embodiments are shown below
  • the breathing mask according to the invention is particularly suitable for exercising sports activities.
  • the respiratory mask according to the present invention can preferably be used in the transitional period and in winter.
  • use is also recommended
  • respiratory mask for athletes both for condition training as well as in high-performance sports, intended
  • the use is not bound to any particular sport
  • the heat exchanger is designed, in particular, as a regenerator and / or recuperator.
  • the regenerator or the recuperator assumes the function of the nasal mucous membranes.
  • the moisture and warmth of the exhaled air are removed by cooling and inhaled again supplied Em such heat exchanger has, especially when the flow ducts are arranged in the direction of breathing, a very high efficiency
  • the heat exchanger in particular the regenerator, made of a wire mesh, in particular with very small wire diameters, preferably ⁇ 0.03 - 0.2 mm, made This technique of producing such regenerators has been well preserved and also brings optimal technical values
  • the crabhielci comprises a heat exchanger laminated core, which effete the heat exchange between the material of the heat exchanger laminated core and the ambient air to be inhaled
  • a heat exchanger laminated core meets the demands made on the breathing mask in the most economical form It is simple in construction and can be manufactured in the most rational way
  • the heat exchanger laminated core has a laminar structure and alternately at least one smooth sheet and / or a smooth foil and at least one deformed sheet and / or a deformed foil are provided, wherein the deformed sheet and / or the deformed
  • Such deformations, similar to a roller shutter, are easy to produce in manufacturing A rational production is thus ensured
  • the regenerator can be advantageously wound from a wavy and a smooth layer of sheets or films, the size of the channels on the well height is determined.
  • the deformed sheet and / or the deformed film for the formation of flow ducts fold-like, parallel, at intervals, preferably equal distances, arranged elevations and depressions, similar to a concertina, in principle, the above advantages apply Of course, for this kind of export
  • At least one cut and / or a cut is provided at an angle preferably to a right angle to the flow channels in at least one sheet or in a foil of the heat exchanger laminated core.
  • These cuts or openings serve only to prevent the long-life line parallel to the gas flow and do not serve to equalize the pressure between the channels, because, for example, slots to strong turbulence of the flow and therefore lead to a large flow resistance. It is therefore possible to multiply the heat resistance in the direction of flow very easily and inexpensively by interruptions, such as cuts, are provided transversely to the direction of flow in the sheet or in the film Thus, the undesirable heat transport along the channel wall can be largely prevented, which improves the overall efficiency
  • Heat exchanger laminated core in a regenerator or recuperator the arrangement and / or the length of the cut or cuts according to the temperature difference between inlet and outlet, optionally to the thickness of the sheet and / or the film and / or optionally the distance and / or the cross section of Flow ducts, adapted
  • One of the most important features in the design of heat exchangers, and in particular for regenerators, is an equal flow through the channels If uneven channels are present in the flow, this leads to uneven mass flows and unequal heat transfer. However, this results in different temperatures and these lead to warm voltages
  • the cuts at equal intervals are recurring and preferably over the entire width the sheet and / or the film arranged.
  • the sheet metal or film thickness is 10 to 500 microns, in particular 20 to 50 microns.
  • the surface of the sheets or films is smooth, possibly polished, designed It is very easy to make the surface texture, such as the surface roughness, such as polishing so that particle deposits difficult or even prevented Pollution of the heat exchanger or recuperator delayed or perhaps even completely suppressed, resulting in corresponding savings in maintenance important in this context, as completely as possible smooth channels, without surveys, such as spacers or nubs or recesses in the
  • the sheets and / or films of less ductile materials such as titanium, or made from glas ⁇ ceramic materials
  • the particular embodiment of the inventive heat exchanger or recuperator allows the use of all materials from which sheets or films can be made This means that less ductile metals such as titanium can also be used.
  • the sheets and / or films are made of nickel-based alloys or molybdenum or tantalum
  • Such heat exchangers or recuperators according to the invention are very simple, without welding or soldering and above all without any waste to produce, so that expensive materials such Nickel-based alloys or exotic metals such as molybdenum or tantalum can be used very advantageously
  • the embossing, cuts and / or openings in the sheets or films in the course of a rolling process can be produced as already mentioned several times, an economical and efficient production of the heat exchanger according to the invention is ensured This manufacturing step contributes to the economy a great contribution
  • the individual sheets and / or films laminated to a heat exchanger laminated core are non-positively and / or positively connected or via a sintering process. It is advantageously possible with the invention to make the laminated core outer dimensions very flexible, so that Even up to now not or poorly for heat exchangers or recuperators suitable cavities can be used without any problems. This irrespective of Grund ⁇ ss the cavities, which may be square, circular, rectangular, triangular, oval, with recesses, etc ..
  • the heat exchanger laminated core is arranged in a housing.
  • the inventive heat exchanger laminated core can really be provided individually in a housing
  • the heat exchanger sheet-metal package is self-supporting, optionally executed with appropriate fixings. This allows a compact and fixed design, so that pressure differences between two different mass flows can be constructed Thus, corresponding flow velocity in the Be achieved media, so that a better heat transfer takes place and the heat exchanger or recuperators are smaller.
  • the theoretically best regenerator is made up of parallel plates, as can be seen in Kays and London 1973, provided that it does not have any long-term heat conduction parallel to the flow direction.
  • the regenerator according to the invention presented here comes very close to this goal, since it has continuous channels for the respiratory air flow, which are not disturbed by nubs or the like.
  • the shape of the channels due to the corrugation of the film is only an approximation to parallel channels, it brings about an enlarged surface which approximately compensates for the disadvantages.
  • the cross-sectional cuts involuntarily form irregularities in the channel surface which counteract the formation of a continuous boundary layer the use of a corrugated and a straight film compresses the cuts in the films. The respiratory airflow can therefore not deform the film and thus narrow the channel cross-section
  • FIG. 1 shows schematically the use of a breathing mask
  • FIG. 2 shows a plan view of a heat exchanger laminated core
  • FIG. 3 shows a three-dimensional view of the heat exchanger laminated core
  • a breathing mask 1 is shown in use by a user whose head 2 is stylized. This breathing mask 1 is provided in the case shown for the mouth and nose area.
  • the breathing mask 1 may cover only the mouth or nose area, according to its purpose and purpose.
  • the breathing mask 1 consists of a mask body 3 with its fastening device 4, in the case shown a flexible band, and a device flowing through the respiratory air, wherein the device is designed as a heat exchanger 5.
  • the inhaled, preferably cold, ambient air is preheated by the warm content of the exhaled breath , where one
  • the normal nasal breathing is not sufficient to cover the oxygen requirement of the body, especially during sports activities. Therefore, the respiratory rate and respiratory rate are also due to the low flow resistance, increased by the mouth breathing.
  • the use of the breathing mask 1 is proposed
  • the very low flow resistance of the breathing mask 1 ensures an almost unimpaired respiratory function and a sufficient oxygen supply, especially in the exercise of sports activities
  • the respiratory mask 1 can be individually adapted or changed for different conditions of use or uses. This could consist, on the one hand, of various interchangeable devices which flow through the respiratory air and / or of a special structure of this device.
  • the device could consist of a multi-layered regenerator
  • the construction of the breathing mask 1 could be selected similar to a ski goggles.
  • the skin-contacting part of the mask body 3 could be made of foam rubber or a similar material.
  • the heat exchanger 5, in particular the regenerator, is used in a corresponding frame. Bonding of the heat exchanger 5 would also be possible
  • the support on the chin can be designed as a movable part, so that a movement of the mouth is possible without hindrance
  • a fastening device 4 can serve an elastic band on the head 2 of the wearer
  • a material of the heat exchanger 5 is particularly suitable a sintered honeycomb construction, which is made of corrugated stainless (N ⁇ ro) -Fohe As further Ein ⁇ chtungsmaterialien sieves, braids, foam, debris, fabric or composites of various materials could be used
  • this breathing mask 1 is certainly recommended in the transitional periods and especially in winter. Also, the use of the breathing mask 1 in a fitness training for athletes, be it amateur or elite athletes advantage The use of such a breathing mask 1 but not only in cold but also in very hot areas to advantage
  • the layered structure of deformed sheets or foils 12 and the smooth sheets or foils 13 is shown by the deformation of the deformed Sheet metal or the deformed film 12 between the smooth sheets or films 12 are formed flow channels 14
  • the deformations are chosen such that the flow channels 14 have parallel, equal distances
  • the cross-section of the flow channels 14 results from the corrugated deformation of the sheet 13
  • the corrugated deformation of the sheet 3 is similar to a sine wave
  • deformed sheet 12 could also be folded accordingly
  • the heat exchanger laminated core 1 1 can also be arranged in a housing
  • Such a heat exchanger laminated core 11 is ideally suited for the heat exchange between two media.
  • this heat exchanger laminated core 11 could also be used for a regenerator in which the heat exchange between a medium and the material takes place.
  • the use of such a heat exchanger is also possible.
  • the sheet metal or film mark can be selected from 10 ⁇ m to 500 ⁇ m
  • a film thickness of 20 microns to 50 microns is used
  • the sheets or foils 12, 13 can be made of all materials that are suitable for it To obtain a resistance to aggressive media, but also, for example, titanium are used
  • titanium are used
  • expensive materials such as nickel-based alloys or exotic metals such as molybdenum or tantalum
  • the surfaces of the sheets or films 12, 13 are made extremely smooth. This can be done for example by polishing.
  • the cuts are arranged in a preferred embodiment of the heat exchanger laminated core 1 1 at equal intervals recurring and preferably over the entire width of the sheet and / or the film 12, 13.
  • a variety of process steps can be applied.
  • the cuts or perforations 15 could be produced by means of a rolling process.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un masque respiratoire (1) pour la zone de la bouche et/ou du nez, qui comprend un corps de masque (3) et un dispositif parcouru par l'air inhalé. Le dispositif se présente sous forme d'échangeur de chaleur (5), l'air ambiant, de préférence froid, à inhaler est préchauffé par la chaleur contenue dans l'air inhalé à expirer et le stockage temporaire de la chaleur contenue de l'air inhalé à expirer s'effectue dans l'échangeur de chaleur (5). L'échangeur de chaleur (5) comprend un paquet de tôles d'échangeur de chaleur (11), qui effectue l'échange de chaleur entre le matériau du paquet de tôles de l'échangeur de chaleur (11) et l'air ambiant à inhaler.
PCT/AT2005/000327 2004-08-19 2005-08-16 Masque respiratoire Ceased WO2006017875A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0139904A AT501354A3 (de) 2004-08-19 2004-08-19 Atemmaske
ATA1399/04 2004-08-19

Publications (1)

Publication Number Publication Date
WO2006017875A1 true WO2006017875A1 (fr) 2006-02-23

Family

ID=35149195

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2005/000327 Ceased WO2006017875A1 (fr) 2004-08-19 2005-08-16 Masque respiratoire

Country Status (2)

Country Link
AT (1) AT501354A3 (fr)
WO (1) WO2006017875A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017009391A1 (de) 2017-10-11 2019-04-11 Holger Claaßen Multifunktionale Atemmaske mit passivem Anwärm-, Befeuchtungs-, und Nassfiltersystem für die Atemluft
RU211572U1 (ru) * 2021-12-13 2022-06-14 Общество с ограниченной ответственностью "БРИЗ" Маска с рекуператором для защиты органов дыхания человека от холода

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112184A (en) * 1958-09-08 1963-11-26 Corning Glass Works Method of making ceramic articles
US3326214A (en) * 1963-10-10 1967-06-20 Perma Pier Inc Breath warmer apparatus
US3502596A (en) * 1965-11-16 1970-03-24 Du Pont Ceramic structures
US4269183A (en) 1979-03-26 1981-05-26 Hunt Patrick T Cold weather breathing mask
US4325365A (en) * 1980-12-11 1982-04-20 Barbuto John P Athlete's breathing apparatus
US4821711A (en) 1987-01-09 1989-04-18 Draegerwerk Ag Protective breathing device
US5114776A (en) * 1989-07-28 1992-05-19 Cesaroni Anthony Joseph Corrugated thermoplastic sheet having fluid flow passages
US5570684A (en) * 1995-12-29 1996-11-05 Behr; R. Douglas Heating and humidifying respiratory mask
DE19515739C2 (de) 1995-05-03 1997-09-11 Holger Krohn Verfahren und Vorrichtung zur Erzeugung gesundheitsverträglicher Atemluft in nasalen Überdruck - Beatmungsgeräten
FR2793389A3 (fr) * 1997-02-11 2000-11-17 Maurice Monteilhet Dispositif a 2 valves, sans apport d'energie, canalisant l'air respire et l'air rejete , sous vetement etanche, chaud ou non, rechauffant l'air respire, et, ou, le filtrant, tout en reduisant la transpiration
DE20013945U1 (de) 1999-10-21 2000-12-07 Dräger Aerospace GmbH, 23558 Lübeck Atemmaske
GB2352978A (en) 1999-08-10 2001-02-14 Kenneth Roger Tuckwell Filter and preheater
WO2003099366A1 (fr) 2002-05-29 2003-12-04 Bvba Medisize België Dispositif de chauffage et d'humidification d'air de respiration

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814094A (en) * 1972-04-03 1974-06-04 Omnitech Inc Low profile cold weather respirator
FI52019C (fi) * 1976-04-30 1977-06-10 Kontekla Oy Hengitysnaamari.
US5435299A (en) * 1991-10-22 1995-07-25 Langman; Vaughan A. Respiratory mask

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112184A (en) * 1958-09-08 1963-11-26 Corning Glass Works Method of making ceramic articles
US3326214A (en) * 1963-10-10 1967-06-20 Perma Pier Inc Breath warmer apparatus
US3502596A (en) * 1965-11-16 1970-03-24 Du Pont Ceramic structures
US4269183A (en) 1979-03-26 1981-05-26 Hunt Patrick T Cold weather breathing mask
US4325365A (en) * 1980-12-11 1982-04-20 Barbuto John P Athlete's breathing apparatus
US4821711A (en) 1987-01-09 1989-04-18 Draegerwerk Ag Protective breathing device
US5114776A (en) * 1989-07-28 1992-05-19 Cesaroni Anthony Joseph Corrugated thermoplastic sheet having fluid flow passages
DE19515739C2 (de) 1995-05-03 1997-09-11 Holger Krohn Verfahren und Vorrichtung zur Erzeugung gesundheitsverträglicher Atemluft in nasalen Überdruck - Beatmungsgeräten
US5570684A (en) * 1995-12-29 1996-11-05 Behr; R. Douglas Heating and humidifying respiratory mask
FR2793389A3 (fr) * 1997-02-11 2000-11-17 Maurice Monteilhet Dispositif a 2 valves, sans apport d'energie, canalisant l'air respire et l'air rejete , sous vetement etanche, chaud ou non, rechauffant l'air respire, et, ou, le filtrant, tout en reduisant la transpiration
GB2352978A (en) 1999-08-10 2001-02-14 Kenneth Roger Tuckwell Filter and preheater
DE20013945U1 (de) 1999-10-21 2000-12-07 Dräger Aerospace GmbH, 23558 Lübeck Atemmaske
WO2003099366A1 (fr) 2002-05-29 2003-12-04 Bvba Medisize België Dispositif de chauffage et d'humidification d'air de respiration

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017009391A1 (de) 2017-10-11 2019-04-11 Holger Claaßen Multifunktionale Atemmaske mit passivem Anwärm-, Befeuchtungs-, und Nassfiltersystem für die Atemluft
RU211572U1 (ru) * 2021-12-13 2022-06-14 Общество с ограниченной ответственностью "БРИЗ" Маска с рекуператором для защиты органов дыхания человека от холода

Also Published As

Publication number Publication date
AT501354A3 (de) 2006-12-15
AT501354A2 (de) 2006-08-15

Similar Documents

Publication Publication Date Title
DE102004030068B3 (de) Atemmaske mit Atemgasversorgung durch die Bänderung
USRE36165E (en) Heating and humidifying respiratory mask
EP0823850B1 (fr) Dispositif permettant de produire de l'air non prejudiciable a la sante dans des appareils a surpression pour respiration nasale
DE102010046369B4 (de) Antischnarchvorrichtung
DE2611898A1 (de) Aerme- und feuchtigkeitstauscher fuer ein atemgeraet
DE112012002347T5 (de) Medizinische Schläuche und Verfahren zu deren Herstellung
DE112013003245T5 (de) Medizinische Komponenten mit Mikrostrukturen für die Befeuchtung und das Kondensatmanagement
WO1996034644A9 (fr) Procede et dispositif permettant de produire de l'air non prejudiciable a la sante dans des appareils a surpression pour respiration nasale
DE102019004760A1 (de) Vorrichtung zum Beatmen eines Patienten und Verfahren zum Betrieb der Vorrichtung
EP1691894B1 (fr) Masque respiratoire
DE202007007570U1 (de) Einrichtung zur Aufnahme eines Kühlmediums zum Kühlen eines Körperteils
DE69215868T2 (de) Atemschutzgerät und entsprechende luftführungseinrichtung
DE202012001825U1 (de) Feucht-Wärme-Austauschvorrichtung für die Atemluft
DE202008011471U1 (de) Maske
WO2006017875A1 (fr) Masque respiratoire
DE102013016601B4 (de) Kühlvorrichtung für ein Atemschutzgerät
DE112014000871T5 (de) Wärmetauscher und Herstellungsverfahren desselben
DE2436436C2 (de) Atemschutzmaske
DE60317309T2 (de) Beatmungsvorrichtung
DE202020105775U1 (de) Rohrfilter und System zur Filtration verschmutzter Umgebungsluft
DE202020102371U1 (de) Tragkörper für eine Gesichtsmaske sowie Gesichtsmaske
DE202013001950U1 (de) Feucht-Wärme-Austauschvorrichtung für die Atemluft
EP2380534A1 (fr) Dispositif de refroidissement
DE2223474B2 (de) Vorrichtung zur Aufbereitung der Atemluft bei Ausschluß der Nasenatmung eines Patienten
DE20114355U1 (de) Künstliche Nase für Patienten mit Spontanatmung über Tracheostomie- oder Endotrachial-Tubus

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase