CA2153615A1 - Respiration mask - Google Patents
Respiration maskInfo
- Publication number
- CA2153615A1 CA2153615A1 CA002153615A CA2153615A CA2153615A1 CA 2153615 A1 CA2153615 A1 CA 2153615A1 CA 002153615 A CA002153615 A CA 002153615A CA 2153615 A CA2153615 A CA 2153615A CA 2153615 A1 CA2153615 A1 CA 2153615A1
- Authority
- CA
- Canada
- Prior art keywords
- mask
- mask body
- patient
- film
- bead
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0605—Means for improving the adaptation of the mask to the patient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
- A61M2016/0661—Respiratory or anaesthetic masks with customised shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0618—Nose
Abstract
An individual mask for artificial respiration of a patient has a mask body bridging the nose of the patient at least in the area of the nostrils.
The mask body has a hollow bead filled with an elastically yielding material for shaping the bead to match the contour of the patients face. The mask body also has a connector for connecting thereto a gas inlet line. To the mask body securing straps may be attached. An elastic film is connected to the bead and bridges a side of the mask body facing the patents face such that an interior space is delimited by the film and the mask body. The film has a cutout for introducing into the interior space the nose of the patent.
The film is preferably made of a breathable and watervapor-permeable material.
The mask body has a hollow bead filled with an elastically yielding material for shaping the bead to match the contour of the patients face. The mask body also has a connector for connecting thereto a gas inlet line. To the mask body securing straps may be attached. An elastic film is connected to the bead and bridges a side of the mask body facing the patents face such that an interior space is delimited by the film and the mask body. The film has a cutout for introducing into the interior space the nose of the patent.
The film is preferably made of a breathable and watervapor-permeable material.
Description
RESPIRATION MASK
Background of the Invention The present invention relates to an individual mask for artificial respiration of a patient with a mask body bridging the nose of the patient at least in the area of the nostrils and having a hollow bead filled with an elastically yielding material for shaping the bead to match the contour of the patients face. To the mask body at least one gas inlet line is connectable.
Securing straps may be attached to the mask body.
Such mass-produced masks are known from German Patent 4 212 259. For adapting the bead which serves a~ a sealing between the face and the mask and is in the form of a hollow body, the hollow body is filled with a liquid or paste-like plastic material that cures to be form-stable and elastically yielding. Subsequently, the mask is placed onto the face of the patient whereby the still soft and elastic plastic material and thus the sealing surface of the bead is adapted to the contour of the face of the patient. Despite this individual adaptation of the sealing surface to the contour of the face of the patient a complete sealing between the edge of the mask and the face can only be achieved when the respiration mask is pressed with a certain pressure onto the face of the patient which is bothersome for a fre~uent and 5long-term use of such respiration masks, for example, for treatment of sleep apnea. Even though small leaks do not impair the effectiveness of artificial respiration, the gases which leak from the mask may result in other illnesses such 10as conjunctivitis or may be disturbing to the patient because a constant stream of air is felt.
It is therefore an object of the present invention to improve the comfort of such a mask as well as to improve the sealing action between the 15face of the patient and the respiration mask.
Summary of the Invention An individual mask for artificial respiration of a patent according to the present invention is primarily characterized by:
20a mask body bridging the nose of the patient at least in the area of the nostrils;
the mask body comprising a hollow bead filled with an elastically yielding material for shaping the bead to match the contour of the patents face;
25the mask body further comprising a connector for connecting there to a gas inlet line;
the mask body having means for attaching thereto securing straps;
the bead comprising an elastic film bridging a side of the mask body facing the patients face such that an interior space is delimited by the film and the mask body; and the film having a cutout for introducing into the interior space the nose of the patient.
Advantageously, the film is comprised of a breathable and watervapor-permeable material.
Preferably, the film has an uneven surface.
According to the present invention, the respiration mask is provided with a thin elastic film connected to the bead which bridges the side of the mask body that is facing the face of the patient and which is provided with a cutout for the nose of the patient to be introduced into the interior space defined by the film and the mask body.
The film which bridges the side of the mask body facing the face of the patient is forced against the face of the patent and the nose of the patent when the mask is put onto the patents face due to the pressure of the respiration gas. In this manner, a sealing with a large surface area is provided so that, due to the optimal seating and matching properties of the mask resulting from the individual adaptation of the bead to the contour of the face of thé patient, the mask must not be forced with securing straps onto the face of the patient but is simply held in its position on the face of patient. This increased comfort achieved by reducing the pressure applied onto the mask and the face of the patient during application of the mask can be further improved according to the present invention by providing the film in the form of a breathable and watervapor-permeable material such as a synthetic block copolymer and/or by providing the film with an uneven (rough) surface such that sticking of the mask to the facial skin of the patient is prevented without impairing the sealing function of the mask. A micro liquid circulation between film and face is possible.
Brief Description of the Drawings The object and advantages of the present invention will appear more clearly from the following specification in conjunction with the accompanying drawings, in which:
-Fig.l shows a schematic perspective view of the inventive respiration mask;
Fig.2 shows a cross-section along the line II
-II of Fig.l.
Description~of Preferred Embodiment The respiration mask of the present invention is comprised of a mask body 4 with a bore (connector) 5 for connecting thereto a respiration gas inlet line (not represented). The mask has scanning elements 7 for securing it with non-represented securing straps to the head of the patient. At the free rim of the mask body 4 a bead 2 with integrated hollow body 3 made of an elastic material, preferably rubber, is connected.
The hollow body 3 of this bead 2 which rests on the face of a patent (not represented), is filled with a material that when cured provides for a form-stable and elastically yielding plastic material. A thin elastic skin 1 is secured to the bead 2 which bridges the side of the mask body 4 that faces the face of the patient and which is provided with a cutout 6 for introducing the nose of the patient into the interior space delimited by the mask body 4 and the film 1.
The present invention is, of course, in no way restricted to specific disclosure of the specification, examples, and drawings, but also encompasses any modifications within the scope of the appemdent claims.
Background of the Invention The present invention relates to an individual mask for artificial respiration of a patient with a mask body bridging the nose of the patient at least in the area of the nostrils and having a hollow bead filled with an elastically yielding material for shaping the bead to match the contour of the patients face. To the mask body at least one gas inlet line is connectable.
Securing straps may be attached to the mask body.
Such mass-produced masks are known from German Patent 4 212 259. For adapting the bead which serves a~ a sealing between the face and the mask and is in the form of a hollow body, the hollow body is filled with a liquid or paste-like plastic material that cures to be form-stable and elastically yielding. Subsequently, the mask is placed onto the face of the patient whereby the still soft and elastic plastic material and thus the sealing surface of the bead is adapted to the contour of the face of the patient. Despite this individual adaptation of the sealing surface to the contour of the face of the patient a complete sealing between the edge of the mask and the face can only be achieved when the respiration mask is pressed with a certain pressure onto the face of the patient which is bothersome for a fre~uent and 5long-term use of such respiration masks, for example, for treatment of sleep apnea. Even though small leaks do not impair the effectiveness of artificial respiration, the gases which leak from the mask may result in other illnesses such 10as conjunctivitis or may be disturbing to the patient because a constant stream of air is felt.
It is therefore an object of the present invention to improve the comfort of such a mask as well as to improve the sealing action between the 15face of the patient and the respiration mask.
Summary of the Invention An individual mask for artificial respiration of a patent according to the present invention is primarily characterized by:
20a mask body bridging the nose of the patient at least in the area of the nostrils;
the mask body comprising a hollow bead filled with an elastically yielding material for shaping the bead to match the contour of the patents face;
25the mask body further comprising a connector for connecting there to a gas inlet line;
the mask body having means for attaching thereto securing straps;
the bead comprising an elastic film bridging a side of the mask body facing the patients face such that an interior space is delimited by the film and the mask body; and the film having a cutout for introducing into the interior space the nose of the patient.
Advantageously, the film is comprised of a breathable and watervapor-permeable material.
Preferably, the film has an uneven surface.
According to the present invention, the respiration mask is provided with a thin elastic film connected to the bead which bridges the side of the mask body that is facing the face of the patient and which is provided with a cutout for the nose of the patient to be introduced into the interior space defined by the film and the mask body.
The film which bridges the side of the mask body facing the face of the patient is forced against the face of the patent and the nose of the patent when the mask is put onto the patents face due to the pressure of the respiration gas. In this manner, a sealing with a large surface area is provided so that, due to the optimal seating and matching properties of the mask resulting from the individual adaptation of the bead to the contour of the face of thé patient, the mask must not be forced with securing straps onto the face of the patient but is simply held in its position on the face of patient. This increased comfort achieved by reducing the pressure applied onto the mask and the face of the patient during application of the mask can be further improved according to the present invention by providing the film in the form of a breathable and watervapor-permeable material such as a synthetic block copolymer and/or by providing the film with an uneven (rough) surface such that sticking of the mask to the facial skin of the patient is prevented without impairing the sealing function of the mask. A micro liquid circulation between film and face is possible.
Brief Description of the Drawings The object and advantages of the present invention will appear more clearly from the following specification in conjunction with the accompanying drawings, in which:
-Fig.l shows a schematic perspective view of the inventive respiration mask;
Fig.2 shows a cross-section along the line II
-II of Fig.l.
Description~of Preferred Embodiment The respiration mask of the present invention is comprised of a mask body 4 with a bore (connector) 5 for connecting thereto a respiration gas inlet line (not represented). The mask has scanning elements 7 for securing it with non-represented securing straps to the head of the patient. At the free rim of the mask body 4 a bead 2 with integrated hollow body 3 made of an elastic material, preferably rubber, is connected.
The hollow body 3 of this bead 2 which rests on the face of a patent (not represented), is filled with a material that when cured provides for a form-stable and elastically yielding plastic material. A thin elastic skin 1 is secured to the bead 2 which bridges the side of the mask body 4 that faces the face of the patient and which is provided with a cutout 6 for introducing the nose of the patient into the interior space delimited by the mask body 4 and the film 1.
The present invention is, of course, in no way restricted to specific disclosure of the specification, examples, and drawings, but also encompasses any modifications within the scope of the appemdent claims.
Claims (3)
1. An individual mask for artificial respiration of a patient, said mask comprising:
a mask body bridging the nose of the patient at least in the area of the nostrils;
said mask body comprising a hollow bead filled with an elastically yielding material for shaping said bead to match a contour of the patient's face;
said mask body further comprising a connector for connecting thereto a gas inlet line;
said mask body having means for attaching thereto securing straps;
said bead comprising an elastic film bridging a side of said mask body facing the patient's face such that an interior space is delimited by said film and said mask body; and said film having a cutout for introducing into said interior space the nose of the patient.
a mask body bridging the nose of the patient at least in the area of the nostrils;
said mask body comprising a hollow bead filled with an elastically yielding material for shaping said bead to match a contour of the patient's face;
said mask body further comprising a connector for connecting thereto a gas inlet line;
said mask body having means for attaching thereto securing straps;
said bead comprising an elastic film bridging a side of said mask body facing the patient's face such that an interior space is delimited by said film and said mask body; and said film having a cutout for introducing into said interior space the nose of the patient.
2. A mask according to claim 1, wherein said film is comprised of a breathable and water vapor-permeable material.
3. A mask according to claim 1, wherein said film has an uneven surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG9411495.1 | 1994-07-15 | ||
| DE9411495U DE9411495U1 (en) | 1994-07-15 | 1994-07-15 | Individual mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2153615A1 true CA2153615A1 (en) | 1996-01-16 |
Family
ID=6911209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002153615A Abandoned CA2153615A1 (en) | 1994-07-15 | 1995-07-11 | Respiration mask |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5715814A (en) |
| EP (1) | EP0692274A3 (en) |
| CA (1) | CA2153615A1 (en) |
| DE (1) | DE9411495U1 (en) |
| FI (1) | FI952991A (en) |
| NO (1) | NO952672L (en) |
Families Citing this family (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0634186B1 (en) | 1993-06-18 | 2000-08-23 | Resmed Limited | Facial breathing mask |
| DE4438512A1 (en) * | 1994-10-31 | 1996-05-02 | Igor Borrmann | Medical breathing mask |
| USD498529S1 (en) | 1996-07-26 | 2004-11-16 | Resmed Limited | Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP) |
| US6513526B2 (en) | 1996-07-26 | 2003-02-04 | Resmed Limited | Full-face mask and mask cushion therefor |
| AUPO126596A0 (en) * | 1996-07-26 | 1996-08-22 | Resmed Limited | A nasal mask and mask cushion therefor |
| AUPO301796A0 (en) * | 1996-10-16 | 1996-11-07 | Resmed Limited | A vent valve apparatus |
| AUPO399596A0 (en) | 1996-12-02 | 1997-01-02 | Resmed Limited | A harness assembly for a nasal mask |
| AUPO400296A0 (en) | 1996-12-02 | 1997-01-02 | Resmed Limited | A mask and harness apparatus |
| AUPO418696A0 (en) | 1996-12-12 | 1997-01-16 | Resmed Limited | A substance delivery apparatus |
| AUPO425696A0 (en) | 1996-12-18 | 1997-01-23 | Resmed Limited | A device for preventing or reducing the passage of air through the mouth |
| AUPQ104099A0 (en) * | 1999-06-18 | 1999-07-08 | Resmed Limited | Forehead support for facial mask |
| AUPO504597A0 (en) | 1997-02-10 | 1997-03-06 | Resmed Limited | A mask and a vent assembly therefor |
| US6561191B1 (en) | 1997-02-10 | 2003-05-13 | Resmed Limited | Mask and a vent assembly therefor |
| AU132412S (en) * | 1997-02-25 | 1997-12-09 | Resmed Ltd | A nasal mask cushion |
| AU133090S (en) * | 1997-02-25 | 1998-03-06 | Resmed Ltd | A nasal mask shell |
| AU132413S (en) * | 1997-02-25 | 1997-12-09 | Resmed Ltd | A nasal mask shell and cushion assembly |
| US6119693A (en) | 1998-01-16 | 2000-09-19 | Resmed Limited | Forehead support for facial mask |
| AUPP949999A0 (en) * | 1999-03-29 | 1999-04-22 | Resmed Limited | Forehead support for facial mask II |
| US6581594B1 (en) * | 2000-05-15 | 2003-06-24 | Resmed Limited | Respiratory mask having gas washout vent and gas washout vent for respiratory mask |
| DE20017940U1 (en) * | 2000-10-19 | 2000-12-28 | Map Gmbh | Breathing mask for supplying a breathing gas to a mask user and a derivation device for deriving breathing gas |
| US7007696B2 (en) * | 2001-05-18 | 2006-03-07 | Tiara Medical Systems, Inc. | Mask cushion and method of using same |
| JP4430935B2 (en) | 2001-10-22 | 2010-03-10 | エムアーペー メディツィンテクノロジー ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Respirator apparatus, wearing device for respirator apparatus, and forehead support |
| DE10151984C5 (en) * | 2001-10-22 | 2008-07-17 | Map Medizin-Technologie Gmbh | Application device for a breathing mask arrangement |
| DE10201682A1 (en) | 2002-01-17 | 2003-07-31 | Map Medizin Technologie Gmbh | The breathing mask arrangement |
| WO2003105921A2 (en) * | 2002-06-14 | 2003-12-24 | Map Medizin-Technologie Gmbh | Mask cushioning and forehead pad for a respiratory mask, respiratory mask in addition to a mould and method for their production |
| US8522785B2 (en) | 2002-08-05 | 2013-09-03 | Resmed Limited | Inextensible headgear and CPAP or ventilator mask assembly with the same |
| JP4434961B2 (en) | 2002-09-06 | 2010-03-17 | レスメド・リミテッド | Forehead pad for respirator |
| WO2004052438A1 (en) | 2002-12-06 | 2004-06-24 | Fisher & Paykel Healthcare Limited | Mouthpiece |
| US7503327B2 (en) | 2003-04-10 | 2009-03-17 | Resmed Limited | Mask with integral cushion and forehead piece |
| AU2004234183B2 (en) | 2003-05-02 | 2011-01-20 | Resmed Limited | A mask system |
| US7406965B2 (en) * | 2003-05-05 | 2008-08-05 | Resmed Limited | Forehead support for facial mask |
| AU2004203870B2 (en) * | 2003-09-17 | 2011-03-03 | Fisher & Paykel Healthcare Limited | Breathable Respiratory Mask |
| CN101683545B (en) * | 2004-04-09 | 2012-11-28 | 雷斯梅德有限公司 | Nasal assembly and nasal face mask with the nasal assembly |
| NZ608551A (en) | 2004-06-16 | 2014-10-31 | Resmed Ltd | Cushion for a respiratory mask assembly |
| EP1841481B1 (en) | 2005-01-12 | 2015-12-02 | ResMed Limited | Cushion for patient interface |
| US8397728B2 (en) | 2005-10-14 | 2013-03-19 | Resmed Limited | Cushion to frame assembly mechanism |
| US20090126739A1 (en) | 2005-10-25 | 2009-05-21 | Resmed Limited | Interchangeable Mask Assembly |
| US8028698B2 (en) * | 2006-09-18 | 2011-10-04 | Invacare Corporation | Breathing mask |
| US8517023B2 (en) | 2007-01-30 | 2013-08-27 | Resmed Limited | Mask system with interchangeable headgear connectors |
| NZ589685A (en) | 2007-04-19 | 2012-06-29 | Resmed Ltd | Cushion for patient breathing interface with variable density foam supported membrane |
| NZ792157A (en) | 2008-03-04 | 2022-11-25 | ResMed Pty Ltd | Mask system |
| US11331447B2 (en) | 2008-03-04 | 2022-05-17 | ResMed Pty Ltd | Mask system with snap-fit shroud |
| DE102009023664A1 (en) * | 2009-06-03 | 2010-12-16 | Dräger Medical AG & Co. KG | oxygen mask |
| CN108367132B (en) * | 2015-12-14 | 2022-07-05 | 皇家飞利浦有限公司 | Support member for a cushion of a respiratory interface device |
| AU2019225444A1 (en) * | 2018-02-23 | 2020-10-01 | Bespoke Medical Innovations Pty Ltd | Oro-nasal patient interface for treating sleep disordered breathing |
| US20200376305A1 (en) | 2020-06-10 | 2020-12-03 | Noah Lang | Personal protective equipment system for safe air, train or bus travel protecting against infectious agents including novel coronavirus - covid-19 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1105127A (en) * | 1910-10-18 | 1914-07-28 | Draegerwerk Heinr Und Bernh Draeger | Smoke-mask for respiration apparatus. |
| US2248477A (en) * | 1940-02-27 | 1941-07-08 | Charles F Lombard | Method and apparatus for administering oxygen |
| US2435721A (en) * | 1943-08-03 | 1948-02-10 | Lehmann Werner | Spray mask |
| US2540567A (en) * | 1948-05-03 | 1951-02-06 | Bennett V Ray | Respiratory facial mask |
| US2875759A (en) * | 1954-12-28 | 1959-03-03 | Jr Ellis A Galleher | Inhaler mask |
| US2877764A (en) * | 1956-10-15 | 1959-03-17 | Jr Ellis A Galleher | Selective contour retaining mask |
| US3052887A (en) * | 1958-10-24 | 1962-09-11 | Electric Storage Battery Co | Face protective devices |
| US3602219A (en) * | 1969-03-05 | 1971-08-31 | Draegerwerk Ag | Respirator having sound diaphragm protective cavity |
| FR2076334A5 (en) * | 1970-01-12 | 1971-10-15 | Ulmer & Cie | |
| DE3707952A1 (en) * | 1987-03-12 | 1988-09-22 | Ernst Dipl Ing Hoermann | Breathing mask for long-term operation |
| US4907584A (en) * | 1988-03-03 | 1990-03-13 | Mcginnis Gerald E | Respiratory mask |
| DE4138172C2 (en) * | 1991-11-21 | 1994-06-09 | Draegerwerk Ag | Half mask |
| DE4212259C1 (en) | 1992-04-11 | 1993-01-14 | Gottlieb Weinmann Geraete Fuer Medizin Und Arbeitsschutz Gmbh + Co, 2000 Hamburg, De | Respiration mask for patient's resuscitation - has contour with resilient filling of liq. or pasty, hardenable plastics, fitting patient's face |
-
1994
- 1994-07-15 DE DE9411495U patent/DE9411495U1/en not_active Expired - Lifetime
-
1995
- 1995-06-16 FI FI952991A patent/FI952991A/en unknown
- 1995-07-06 NO NO952672A patent/NO952672L/en unknown
- 1995-07-08 EP EP95110683A patent/EP0692274A3/en not_active Withdrawn
- 1995-07-11 CA CA002153615A patent/CA2153615A1/en not_active Abandoned
- 1995-07-14 US US08/572,754 patent/US5715814A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FI952991A0 (en) | 1995-06-16 |
| US5715814A (en) | 1998-02-10 |
| NO952672D0 (en) | 1995-07-06 |
| EP0692274A2 (en) | 1996-01-17 |
| DE9411495U1 (en) | 1994-10-27 |
| NO952672L (en) | 1996-01-16 |
| FI952991A (en) | 1996-01-16 |
| EP0692274A3 (en) | 1996-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |