GB2323292A - Laryngeal mask assembly - Google Patents
Laryngeal mask assembly Download PDFInfo
- Publication number
- GB2323292A GB2323292A GB9804764A GB9804764A GB2323292A GB 2323292 A GB2323292 A GB 2323292A GB 9804764 A GB9804764 A GB 9804764A GB 9804764 A GB9804764 A GB 9804764A GB 2323292 A GB2323292 A GB 2323292A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cuff
- tube
- laryngeal mask
- assembly
- mask portion
- 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.)
- Granted
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
- A61M16/04—Tracheal tubes
-
- 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
- A61M16/04—Tracheal tubes
- A61M16/0402—Special features for tracheal tubes not otherwise provided for
- A61M16/0409—Special features for tracheal tubes not otherwise provided for with mean for closing the oesophagus
Abstract
A laryngeal mask assembly has a mask portion 13 formed by a mount 15 with a plate 20 to which an inflatable cuff 16 and 17 is attached on both sides. The plate 20 projects beyond the cuffs to form a leading tip 21 to aid insertion of the assembly into the patient.
Description
1 Lai:yngeal Mask Assemblies This invention relates to laryngeal mask
assemblies 2323292 It is common practice to use an airway known as a laryngeal mask for the administration of anaesthetic and ventilation gases to a patient. These airways comprise a tube with an inflatable mask or cuff at one end, the tube being inserted in the patient's mouth so that one end is located in the hypopharynx and so that the mask forms a seal in this region with the surrounding tissue. Laryngeal masks are described in, for example, US 5355879, US 53)057433, US 5297547, US 5282464, GB 2267034, US 5249571, US 5241956, US 530-3697, GB 2249959, GB 2111-394, EP 448878, US 4995388, GB 2205499, GB 2128561 and GB22988797.
Laryngeal masks have several advantages over endotracheal tubes, which are longer Z> and seal with the trachea below the vocal folds. One problem with laryngeal mask airways, however, is that it is difficult they can be difficult to introduce correctly, especially by an inexperienced user.
It is an object of the present invention to provide an improved laryngeal mask assembly.
According to the present invention there is provided a laryngeal mask assembly comprising a tube with a mask portion at its patient end, the tube opening into the centre of the mask portion and the mask portion having an inflatable cuff member of generally oval shape for providing a seal with patient tissue in the region of the hypopharynx, the mask portion including a tip member projecting beyond the cuff member to aid insertion of the assembly.
2 The mask portion preferably comprises a mount member attached with the patient end of the tube, the cuff member being attached with the mount member and the tip member being provided by a part of the mount member. The mount member preferably comprises a sleeve attached with the tube and a plate member projecting at an angle to the sleeve, the tip member being provided by a part of the plate member. The tip member may be provided by a curved up leading edge of the plate member. The assembly preferably includes two cuff members attached to opposite sides of the mount member.
A laryngeal mask airway assembly according to the present invention, will now be Z t> described, by way of example, with reference to the accompanying drawing, in which:
Figure 1 Fiaure 2 0 Figure 3 3 is a side elevation view of the assembly; is a sectional side elevation view of the patient end of the assembly to an enlarged scale; and is a view from above of the patient end of the assembly.
The assembly comprises a bendable tube 1 of a plastics material, such as PVC, with a coupling 10 at its machine end 12. The tube 1 is curved along its length and has a mask portion 13 at its patient end 14.
The tube 1 is extruded with an inflation lumen 2 within its wall. The lumen 2 is connected towards the machine end of the assembly to an inflation line -3 with an inflation indicator and connector 4. The opposite, patient end of the inflation lumen 2 opens into the mask portion 13.
3 The mask portion 13 comprises a mount member 15 and two cuff members 16 and 17.
The mount member 15 is moulded from a bendable plastics material, such as PVC. The mount member 15 has a hollow cylindrical sleeve 18 at its rear end, in which the forward, patient end 14 of the tube 1 is inserted and joined. The forward, patient end 19 of the mount member 15 has a substantially flat plate 20 with a generally elliptical or egg-shape outline, which pr jects outwardly of the sleeve 18 at an angle of about 3 W'. The forward edge of the 01 tz, plate 20 is curved upwardly to form a leading tip 2 1. Several air vent holes 22 are spaced around the plate 20 and allow air to flow through the thickness of the plate.
The cuff members 16 and 17 are both blow moulded from a flexible, resilient plastics material, such as PVC,'polyurethane, silicone, EVA, TPE, polyether block amide or the like. The cuff members could be formed in other ways, such as by vacuum forming, pressure vacuum forming or injection mouldina. Alternatively, the cuff members could be flat sheets, which might have elastomeric properties or be laminates with reinforcing. The lower, patientend cuff member 16 has a semi-annular shape with a periphery conforming to the outline of the plate 20. An annular recess or channel 23 extends around the upper surface of the cuff, within a peripheral rim 24. In the centre of the cuff member 16 there is an aperture 25 of oval shape, which conforms to the shape of the opening of the patient end of sleeve 18. The cuff member 16 is bonded to the lower, patient side of the plate 20 both around the rim 24 and around the edge of the aperture 25 to enclose an annular space between the lower surface of C_ the plate and the channel 23. The upper cuff member 17 is similar in shape to the lower cuff member 16 but is arranged upside down. The upper cuff member 17 has a peripheral rim 27 and an inner rim 28 bonded to the upper surface of the plate 20, on either side of an annular channel 3) 0. The upper channel 3) 0 communicates with the inflation lumen 2 by means of a channel in the mount member 15, or an interconnecting tube, so that gas supplied to the inflation lumen inflates the upper cuff member 17 and, because the gas flows through the air vents 22, it also inflates the lower cuff member 16.
4 The leading tip 21 projects forwardly slightly beyond the upper and lower cuff Z members 16 and 17 so as to provide a stiffer leading edge to help guide the mask portion 13) into the correct location.
Claims (5)
- A laryngeal mask assembly comprising a tube with a mask portion at its patient end, :D c the tube opening into the centre of the mask portion and the mask portion having an 0 Z.) inflatable cuff member of generally oval shape for providing a seal with patient tissue in the region of the hypopharynx, wherein the mask portion includes a tip member projecting beyond the cuff member to aid insertion of the assembly.
- 2. A laryngeal mask assembly according to Claim 1, wherein said mask portion comprises a mount member attached with the patient end of the tube, wherein said cuff member is attached with said mount member, and wherein said tip member is provided by a part of said mount member.
- 13. A laryngeal mask assembly acording to Claim 2, wherein said mount member comprises a sleeve attached with said tube and a plate member projecting at an angle Z to the sleeve, and wherein said tip member is provided by a part of said plate member.
- 4. A laryngeal mask assembly according to Claim -3), wherein said tip member is provided by a curved up leading edge of the plate member.
- 5. A laryngeal mask assembly according to any one of Claims 2 to 4, wherein said 1 assembly includes two cuff members attached to opposite sides of said mount member.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9705586.7A GB9705586D0 (en) | 1997-03-18 | 1997-03-18 | Laryngeal mask assemblies |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9804764D0 GB9804764D0 (en) | 1998-04-29 |
GB2323292A true GB2323292A (en) | 1998-09-23 |
GB2323292B GB2323292B (en) | 2001-02-14 |
Family
ID=10809440
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9705586.7A Pending GB9705586D0 (en) | 1997-03-18 | 1997-03-18 | Laryngeal mask assemblies |
GB9804322A Expired - Fee Related GB2323291B (en) | 1997-03-18 | 1998-03-03 | Laryngeal mask assemblies |
GB9804764A Expired - Fee Related GB2323292B (en) | 1997-03-18 | 1998-03-09 | Laryngeal mask assemblies |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9705586.7A Pending GB9705586D0 (en) | 1997-03-18 | 1997-03-18 | Laryngeal mask assemblies |
GB9804322A Expired - Fee Related GB2323291B (en) | 1997-03-18 | 1998-03-03 | Laryngeal mask assemblies |
Country Status (4)
Country | Link |
---|---|
US (2) | US6116243A (en) |
JP (2) | JPH10263084A (en) |
DE (2) | DE19810477A1 (en) |
GB (3) | GB9705586D0 (en) |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6406435B1 (en) * | 1998-11-17 | 2002-06-18 | James R. Mault | Method and apparatus for the non-invasive determination of cardiac output |
US6439232B1 (en) | 1998-08-13 | 2002-08-27 | Archibald Ian Jeremy Brain | Laryngeal mask airway device |
US6705318B1 (en) | 1999-04-09 | 2004-03-16 | Archibald I. J. Brain | Disposable LMA |
US6792948B2 (en) | 2003-01-22 | 2004-09-21 | Archibald I. J. Brain | Laryngeal mask airway device with airway tube having flattened outer circumference and elliptical inner airway passage |
US6899684B2 (en) | 1999-08-02 | 2005-05-31 | Healthetech, Inc. | Method of respiratory gas analysis using a metabolic calorimeter |
US6918388B2 (en) | 1997-07-25 | 2005-07-19 | The Laryngeal Mask Company Limited | Intubating laryngeal mask |
US7004169B2 (en) | 1999-10-07 | 2006-02-28 | Indian Ocean Medical Inc. | Laryngeal mask with large-bore gastric drainage |
US7128071B2 (en) | 2003-09-10 | 2006-10-31 | Indian Ocean Medical Inc. | Intubating laryngeal mask airway device with fiber optic assembly |
US7134431B2 (en) | 2003-09-08 | 2006-11-14 | Indian Ocean Medical Inc. | Laryngeal mask airway device with position controlling tab |
US7156100B1 (en) | 1998-10-06 | 2007-01-02 | The Laryngeal Mask Company Ltd. | Laryngeal mask airway device |
AU2008230027B2 (en) * | 1998-10-06 | 2011-10-20 | The Laryngeal Mask Company Limited | Laryngeal mask airway device |
GB2481538A (en) * | 2010-06-24 | 2011-12-28 | Docsinnovent Ltd | An airway device with means to prevent over-insertion |
US9265904B2 (en) | 2009-07-06 | 2016-02-23 | Teleflex Life Sciences | Artificial airway |
US9528897B2 (en) | 2009-08-13 | 2016-12-27 | Chimden Medical Pty Ltd | Pressure indicator |
US9662465B2 (en) | 2005-05-27 | 2017-05-30 | The Laryngeal Mask Company Ltd. | Laryngeal mask airway device |
US9675772B2 (en) | 2010-10-15 | 2017-06-13 | The Laryngeal Mask Company Limited | Artificial airway device |
US9937311B2 (en) | 2012-01-27 | 2018-04-10 | Ashkal Developments Limited | Stopper device |
US9974912B2 (en) | 2010-10-01 | 2018-05-22 | Teleflex Life Sciences Unlimited Company | Artificial airway device |
US10040231B2 (en) | 2002-08-14 | 2018-08-07 | Muhammed Aslam Nasir | Airway device |
USD842456S1 (en) | 2015-12-15 | 2019-03-05 | Intersurgical Ag | Airway device |
US10549054B2 (en) | 2011-02-02 | 2020-02-04 | Teleflex Life Sciences Unlimited Company | Artificial airway |
US10576229B2 (en) | 2009-03-03 | 2020-03-03 | The Laryngeal Mask Company Limited | Artificial airway device |
US10625037B2 (en) | 2013-12-17 | 2020-04-21 | Intersurgical Ag | Intubating airway device |
US10806327B2 (en) | 2011-11-30 | 2020-10-20 | Teleflex Life Sciences Pte, Ltd. | Laryngeal mask for use with an endoscope |
US11701484B2 (en) | 2017-12-13 | 2023-07-18 | Ashkal Developments Limited | Airway device |
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US20050139220A1 (en) * | 1996-02-26 | 2005-06-30 | Evergreen Medical Incorporated | Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube |
US6634354B2 (en) | 1996-02-26 | 2003-10-21 | Evergreen Medical Incorporated | Laryngeal mask airway |
US6668821B2 (en) | 1996-02-26 | 2003-12-30 | Evergreen Medical Incorporated | Laryngeal mask airway |
US6830049B2 (en) * | 1996-10-16 | 2004-12-14 | Arizant Healthcare Inc. | Airway device with provision for coupling to an introducer |
US6427686B2 (en) * | 1996-10-16 | 2002-08-06 | Augustine Medical, Inc. | Airway device with provision for coupling to an introducer |
US6309360B1 (en) | 1997-03-17 | 2001-10-30 | James R. Mault | Respiratory calorimeter |
GB9705586D0 (en) * | 1997-03-18 | 1997-05-07 | Smiths Industries Plc | Laryngeal mask assemblies |
GB9710645D0 (en) * | 1997-05-22 | 1997-07-16 | Smiths Industries Plc | Cuffed tube assemblies |
GB9727367D0 (en) * | 1997-12-24 | 1998-02-25 | Brain Archibald Ian Jeremy | Improvements in laryngeal mask airway devices |
US7331346B2 (en) * | 1997-12-24 | 2008-02-19 | Indian Ocean Medical, Inc. | Monitoring and control for a laryngeal mask airway device |
CA2320238C (en) | 1998-02-05 | 2011-08-23 | James R. Mault | Metabolic calorimeter employing respiratory gas analysis |
AU5392499A (en) | 1998-08-03 | 2000-02-28 | James R. Mault | Method and apparatus for respiratory gas analysis employing measurement of expired gas mass |
US6119695A (en) * | 1998-11-25 | 2000-09-19 | Augustine Medical, Inc. | Airway device with provision for lateral alignment, depth positioning, and retention in an airway |
ATE381364T1 (en) * | 1999-04-09 | 2008-01-15 | Laryngeal Mask Co Ltd | SINGLE USE LARYNX MASK |
US7712467B2 (en) | 1999-04-14 | 2010-05-11 | Vital Signs, Inc. | Artificial airway device and method of its use |
US6390093B1 (en) * | 1999-04-14 | 2002-05-21 | Vital Signs, Inc. | Artificial airway device and method of its use |
JP2003527881A (en) | 1999-05-10 | 2003-09-24 | ジェームズ アール モールト | Airway-based cardiac output monitor and method of using the same |
US6468222B1 (en) | 1999-08-02 | 2002-10-22 | Healthetech, Inc. | Metabolic calorimeter employing respiratory gas analysis |
GB9920098D0 (en) * | 1999-08-26 | 1999-10-27 | Smiths Industries Plc | Medico-surgical apparatus |
WO2001028416A1 (en) | 1999-09-24 | 2001-04-26 | Healthetech, Inc. | Physiological monitor and associated computation, display and communication unit |
CA2387124A1 (en) | 1999-10-08 | 2001-04-26 | Healthetech, Inc. | Integrated calorie management system |
US6612306B1 (en) | 1999-10-13 | 2003-09-02 | Healthetech, Inc. | Respiratory nitric oxide meter |
US6511676B1 (en) * | 1999-11-05 | 2003-01-28 | Teni Boulikas | Therapy for human cancers using cisplatin and other drugs or genes encapsulated into liposomes |
US6629934B2 (en) | 2000-02-02 | 2003-10-07 | Healthetech, Inc. | Indirect calorimeter for medical applications |
GB0002805D0 (en) * | 2000-02-08 | 2000-03-29 | Smiths Industries Plc | Masks and their manufacture |
US6482158B2 (en) | 2000-05-19 | 2002-11-19 | Healthetech, Inc. | System and method of ultrasonic mammography |
WO2002026112A2 (en) | 2000-09-29 | 2002-04-04 | Healthetech, Inc. | Indirect calorimetry system |
US6607387B2 (en) | 2000-10-30 | 2003-08-19 | Healthetech, Inc. | Sensor system for diagnosing dental conditions |
TW468476U (en) * | 2000-11-17 | 2001-12-11 | Future Top Medical Environment | Structure of larynx cover dedicated for anaesthesia |
GB0031661D0 (en) * | 2000-12-22 | 2001-02-07 | Smiths Group Plc | Laryngeal mask assemblies |
US7159589B2 (en) | 2001-08-23 | 2007-01-09 | Indian Ocean Medical Inc. | Disposable laryngeal mask airway device |
US7040322B2 (en) * | 2001-11-08 | 2006-05-09 | Fortuna Anibal De Oliveira | Combination artificial airway device and esophageal obturator |
US7762261B1 (en) | 2001-11-08 | 2010-07-27 | Fortuna Anibal De Oliveira | Combination artificial airway device and esophageal obturator |
US7040312B2 (en) * | 2002-05-16 | 2006-05-09 | Engineered Medical Systems, Inc. | Perilaryngeal oral airway with flexible tip guide |
USD478660S1 (en) | 2002-07-01 | 2003-08-19 | Healthetech, Inc. | Disposable mask with sanitation insert for a respiratory analyzer |
EP1654025B1 (en) | 2003-08-14 | 2012-03-14 | Muhammed Aslam Nasir | Improved airway device |
US7096868B2 (en) * | 2004-03-09 | 2006-08-29 | Nellcor Puritan Bennett Incorporated | Laryngeal airway device |
TWM258741U (en) * | 2004-06-16 | 2005-03-11 | Hsiner Co Ltd | Anaestheic laryngeal mask with guiding function |
US7013899B2 (en) * | 2004-08-13 | 2006-03-21 | Engineered Medical System, Inc. | Perilaryngeal oral airway with multi-lumen esophogeal-obturator |
US7047973B2 (en) * | 2004-10-12 | 2006-05-23 | Ti-Li Chang | Laryngeal mask airway |
US7900632B2 (en) * | 2006-08-18 | 2011-03-08 | Cookgas, L.L.C. | Laryngeal mask with esophageal blocker and bite block |
GB2444779A (en) | 2006-12-14 | 2008-06-18 | Archibald Ian Jeremy Brain | A laryngeal mask with with drug delivery means |
US7934502B2 (en) | 2007-05-11 | 2011-05-03 | Cookgas, Llc | Self-pressurizing supraglottic airway |
US9119926B2 (en) | 2009-07-31 | 2015-09-01 | Avent, Inc. | Subglottic suctioning system |
USD693920S1 (en) | 2011-06-08 | 2013-11-19 | Intersurgical Ag | Airway device |
USD712244S1 (en) | 2011-09-23 | 2014-09-02 | Intersurgical Ag | Medical device package |
USD761952S1 (en) | 2012-07-27 | 2016-07-19 | Docsinnovent Limited | Airway device |
AU201714823S (en) | 2017-02-27 | 2017-10-12 | Teleflex Life Sciences Unlimited Co | Laryngeal mask airway device |
US10744287B2 (en) * | 2017-11-29 | 2020-08-18 | Airway Medix S.A. | Laryngeal mask cuffs |
CN108671346A (en) * | 2018-05-24 | 2018-10-19 | 无锡圣诺亚科技有限公司 | Position suction sputum laryngeal mask |
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- 1998-03-11 DE DE19810477A patent/DE19810477A1/en not_active Withdrawn
- 1998-03-11 DE DE19810476A patent/DE19810476B4/en not_active Expired - Fee Related
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Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6918388B2 (en) | 1997-07-25 | 2005-07-19 | The Laryngeal Mask Company Limited | Intubating laryngeal mask |
US6439232B1 (en) | 1998-08-13 | 2002-08-27 | Archibald Ian Jeremy Brain | Laryngeal mask airway device |
US7305985B2 (en) | 1998-08-13 | 2007-12-11 | The Laryngeal Mask Company Limited | Laryngeal mask airway device |
US9694150B2 (en) | 1998-08-13 | 2017-07-04 | The Laryngeal Mask Company Limited | Laryngeal mask airway device |
US7156100B1 (en) | 1998-10-06 | 2007-01-02 | The Laryngeal Mask Company Ltd. | Laryngeal mask airway device |
AU2008230027B2 (en) * | 1998-10-06 | 2011-10-20 | The Laryngeal Mask Company Limited | Laryngeal mask airway device |
AU2008230029B2 (en) * | 1998-10-06 | 2012-05-17 | The Laryngeal Mask Company Limited | Laryngeal mask airway device |
AU2009200828B2 (en) * | 1998-10-06 | 2012-01-19 | The Laryngeal Mask Company Limited | Laryngeal mask airway device |
AU2008230028B2 (en) * | 1998-10-06 | 2012-01-12 | The Laryngeal Mask Company Limited | Laryngeal mask airway device |
US6406435B1 (en) * | 1998-11-17 | 2002-06-18 | James R. Mault | Method and apparatus for the non-invasive determination of cardiac output |
US6705318B1 (en) | 1999-04-09 | 2004-03-16 | Archibald I. J. Brain | Disposable LMA |
US7097802B2 (en) | 1999-04-09 | 2006-08-29 | Indian Ocean Medical Inc. | Disposable LMA |
US6899684B2 (en) | 1999-08-02 | 2005-05-31 | Healthetech, Inc. | Method of respiratory gas analysis using a metabolic calorimeter |
US7004169B2 (en) | 1999-10-07 | 2006-02-28 | Indian Ocean Medical Inc. | Laryngeal mask with large-bore gastric drainage |
US10040231B2 (en) | 2002-08-14 | 2018-08-07 | Muhammed Aslam Nasir | Airway device |
US6792948B2 (en) | 2003-01-22 | 2004-09-21 | Archibald I. J. Brain | Laryngeal mask airway device with airway tube having flattened outer circumference and elliptical inner airway passage |
US7134431B2 (en) | 2003-09-08 | 2006-11-14 | Indian Ocean Medical Inc. | Laryngeal mask airway device with position controlling tab |
US7128071B2 (en) | 2003-09-10 | 2006-10-31 | Indian Ocean Medical Inc. | Intubating laryngeal mask airway device with fiber optic assembly |
US9662465B2 (en) | 2005-05-27 | 2017-05-30 | The Laryngeal Mask Company Ltd. | Laryngeal mask airway device |
US10576229B2 (en) | 2009-03-03 | 2020-03-03 | The Laryngeal Mask Company Limited | Artificial airway device |
US9265904B2 (en) | 2009-07-06 | 2016-02-23 | Teleflex Life Sciences | Artificial airway |
US10576230B2 (en) | 2009-07-06 | 2020-03-03 | Teleflex Life Sciences Unlimited Company | Artificial airway |
US10126197B2 (en) | 2009-08-13 | 2018-11-13 | Teleflex Life Sciences | Pressure indicator |
US9528897B2 (en) | 2009-08-13 | 2016-12-27 | Chimden Medical Pty Ltd | Pressure indicator |
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US10549054B2 (en) | 2011-02-02 | 2020-02-04 | Teleflex Life Sciences Unlimited Company | Artificial airway |
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Also Published As
Publication number | Publication date |
---|---|
GB2323291B (en) | 2001-02-14 |
JP3964531B2 (en) | 2007-08-22 |
US6116243A (en) | 2000-09-12 |
DE19810476A1 (en) | 1998-09-24 |
JPH10263085A (en) | 1998-10-06 |
DE19810476B4 (en) | 2005-10-20 |
GB2323291A (en) | 1998-09-23 |
US5983897A (en) | 1999-11-16 |
GB2323292B (en) | 2001-02-14 |
JPH10263084A (en) | 1998-10-06 |
GB9804764D0 (en) | 1998-04-29 |
GB9804322D0 (en) | 1998-04-22 |
GB9705586D0 (en) | 1997-05-07 |
DE19810477A1 (en) | 1998-09-24 |
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