GB2330312A - Laryngeal mask with foam cuff - Google Patents
Laryngeal mask with foam cuff Download PDFInfo
- Publication number
- GB2330312A GB2330312A GB9821346A GB9821346A GB2330312A GB 2330312 A GB2330312 A GB 2330312A GB 9821346 A GB9821346 A GB 9821346A GB 9821346 A GB9821346 A GB 9821346A GB 2330312 A GB2330312 A GB 2330312A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cuff
- tube
- foam
- laryngeal mask
- plate member
- 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
-
- 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
- A61M16/0434—Cuffs
- A61M16/0436—Special fillings therefor
-
- 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
- A61M16/0434—Cuffs
- A61M16/0445—Special cuff forms, e.g. undulated
Abstract
A laryngeal mask airway has a foam cuff 16 formed on the patient surface of a plate 20 attached at the patient end 14 of a tube 1. The cuff 16 is of a self-skinning foam so that the skin 24 of the foam forms the outer surface of the cuff and seals with the plate 20. An air lumen 2 extruded along the tube 1 opens at one end into the interior of the cuff 16 and at the other end connects with an air line 3. The cuff 16 can be compressed for insertion and removal by applying suction to the air line 3.
Description
1 LARYNGEAL MASK ASSEMBLIES This invention relates to laryngeal mask
assemblies 2330312
It is common practice to use an airway known as a laryngeal mask or airway for administering 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 w th the surrounding tissue. Laryngeal masks are described in, for examp e US 5355879, US 5305743), US 5297547, US 5282464, GB 2267034, US 5249571, US 5241956, US 53)03697, GB 2249959, GB 21113)94, EP 448878, US 4995388, GB 2205499, GB 2128561 and GB 21-298797. WO 98/16273 describes a laryngeal air,,,,ay, with a foam pad that is squeezed to compress it for introduction and that gradually expands when in position.
1 Laryngeal masks have several advantages over endotracheal tubes, which are longer C1 and seal v,'Ith the trachea below the vocal folds. One problem with laryngeal mask airways, ho,,,ever, is that it 'Is difficult to provide the cuff, which is of relatively complex shape, at low cost.
It is an object of the present invention to provide an improved laryngeal mask assembly.
According to one aspect of the present invention there is provided a laryngeal mask assembh; comprising a tube with a mask portion at its patient end, the tube opening into the centre of the mask portion, the mask portion including a mount member joined with the patient end of the tube and having an outwardIv-projecting plate member, the assembly including a cuff formed of a foam material attached with the plate member, the outer surface of the cuff being provided by a skin of the foam, the skin being sealed with the plate member, 2 and the assembly including an air passage opening into the cuff by which suction can be applied to the cuff to compress it for insertion.
The air passage is preferably provided at least in part by a lumen extruded along the tube. The skin of the foam may be sealed around an edge of the plate member by welding, The assembly may include a cuff of foam extending on both sides of the plate member. The air passage may be connectable with the bore through the tube such that the cuff is inflated c slightly. during positive ventilation.
A laryngeal mask airway assembly, according to the present invention, will now be 1 c) described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a side elevation view of the assembly with the cuff expanded; Figure 2 is a side elevation view of the patient end of the assembly with the cuff compressed., Figure 3 is an end view of the patient end of the assembly; Figure 4 is a partly- sectional side elevation view of the patient end of an alternative assembly in a compressed state; and Figure 5 is an end view of the patient end of the assembly of Figure 4.
With reference first to Figures 1 to 3, 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 attached at its patient end 14.
3 The tube 1 is extruded with a small bore lumen 2 within its wall. The lumen 2 is connected towards the machine end of the assembly to an air line 3, which is terminated with a connector 4. The opposite, patient end of the lumen 2 opens into the mask portion 13.
The mask portion 13 comprises a mount member 15 and a cuff member 16. 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. A substantially flat plate 20 with a generally elliptical or ego-shape outline projects outwardly of the sleeve 18 at an angle of about 30', at ?-- C_ c the patient end of the mount 15. An air vent hole.2 1 extends through the thickness of the plate 20 and communicates with the lumen 21 on the machine side of the plate. The forward end of the plate 20 is provided with a small projecting tip 22 to aid insertion and location of the patient end of the assembly.
The cuff member 16 is a ring or an-nulus with the same shape as the periphery of the plate 20 and with a hollow centre 23 through which the tube 1 opens at the patient end of the assembly. The cuff member 16 is formed entirely from an open cell foam material, such as polyurethane, having a self skinning characteristic, so that a skin 24 forms during curing of the foam material and provides the external surface of the cuff itself, that is, the surface that contacts patient tissue during use. The cuff 16 is formed and attached with the patient (anterior) surface of the plate 20 in a simple one-step operation. The mount member 15 is loaded in a mould (not shown) with the patient side surface of the plate 20 facing into a cavity having the desired shape of the expanded cuff. The foam material is then injected in liquid 4 form into the cavity so that it flows over the surface of the plate 20, When the foam has cured sufficiently, the mount member 15 is removed. The foam attaches to the plate 20 and, where it is exposed, forms the impervious skin 24. Although the drawings show the expanded patient face 25 of the cuff 16 as being of a relatively simple, convex shape, it can be easily made in considerably more complex shapes, simply by appropriately, shaping the cavity in the mould. The cuff 16 is shaped so that it forms an effective seal with the pharynx or hypopharynx.
To ensure a gas-tight seal between the plate 220 and the cuff 16, it is preferable for the skin 24 of the cuff to be welded or otherwise scaled to the plate around its outer periphery 26 and around its inner periphery 27 around the hollow centre 233 of the cuff.
The lumen 2 opens into the foam of the cuff 16 via the air vent 21 in the plate 20 and, since the foam of the cuff has open cells, it enables the cuff to be deflated or compressed by attaching, a syringe to the connector 4 and withdrawing air from the cuff via the lumen 2 and the air line 3. This sucks the skin 24 of the cuff 16 closer to the plate 20, as shown in Figure 1) (7. 1 x. rig the cuff a slimmer profile for and removal from the patient. Thi 1 1 is ensures that the cuff 16 remains fully compressed during insertion and that it can be rapidly expanded when correctly positioned. Because the cuff can also be fully deflated or compressed after use, it makes removal easier and less traumatic that if the cuff remained in its expanded state.
With reference now to Figure 4, there is shown a similar assembly having a cuff member 16' extending over both surfaces of the plate 20' of the mount member 15', the expanded shape of the cuff being shown in broken outline. The edges of the cuff 16' overlap the edges of the plate 20' around its circumference. In this example, the skin 24' of the cuff 16' is welded around the periphery 27 of the centre 23' on the patient side of the plate. In its natural shape, as shown by the broken line, the cuff 16 forms a thick layer over the patient (anterior) and machine (posterior) sides of the plate 20'. When deflated to the position shown, the cuff 16' is pulled close to the patient and machine sides of the plate 20' for insertion and removal.
The interior of the cuff member 16, 16' could be arranged to communicate with the main bore of the iube 1' so that, when the patient is being ventilated by positive pressure, the interior of the cuff is inflated slightly each cycle by, the ventilation gas so as to form a better 1 scat with the surrounding tissue. The arrangement by which this is achieved could be as described in EP 0072230A where the connector on the air line is removably connectable to a port opening into the machine end coupling.
6
Claims (1)
- 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, the mask portion including a i-nount member Joined with the patient end of said tube and having an outwardlyprojecting plate member, wherein the assembly includes a cuff formed of a foam material attached with said plate member, wherein the outer surface of said cuff is proided by a skin of the foam, the skin being sealed with said plate member, and wherein the assembly includes an air passage opening into said cuff by which suction can he applied to said cuff to compress it for insertion.A lar-,.n(,eal mask assembly according to Claim 1, wherein the air passage is provided 1 W 1 at least in part by a lunien extruded along said tube.1 A laryngeal mask assembly according to Claim 1 or 2, wherein the skin of the foam is 3.scaled around an edge of the plate member by welding.A laryIngeal mask assembly according to any one of the preceding claims, wherein the assembly includes a cuff of foam extending on both sides of said plate member.5.A laryngeal mask assembly according to any one of the preceding claims, wherein the air passage is connectable with the bore through the tube such that the cuff is inflated slightly during positive ventilation.C> 6. A laryngeal mask assembly substantially as hereinbefore described with reference to Figures 1 to 3) of the accompanying drawings.7 7, A laryngeal mask assembly substantially as hereinbefore described with reference to Figures 1 to 3 as modified by Figures 4 and 5 of the accompanying drawings.t:5 8. Any novel and inventive feature as hereinbefore described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9721840.8A GB9721840D0 (en) | 1997-10-16 | 1997-10-16 | Laryngeal mask assemblies |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9821346D0 GB9821346D0 (en) | 1998-11-25 |
GB2330312A true GB2330312A (en) | 1999-04-21 |
GB2330312B GB2330312B (en) | 2002-06-12 |
Family
ID=10820586
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9721840.8A Pending GB9721840D0 (en) | 1997-10-16 | 1997-10-16 | Laryngeal mask assemblies |
GB9821346A Expired - Lifetime GB2330312B (en) | 1997-10-16 | 1998-10-02 | Laryngeal mask assemblies |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9721840.8A Pending GB9721840D0 (en) | 1997-10-16 | 1997-10-16 | Laryngeal mask assemblies |
Country Status (6)
Country | Link |
---|---|
US (1) | US6012452A (en) |
EP (1) | EP0911049A1 (en) |
JP (1) | JPH11192304A (en) |
AU (1) | AU728123B2 (en) |
CA (1) | CA2250377A1 (en) |
GB (2) | GB9721840D0 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2323292B (en) * | 1997-03-18 | 2001-02-14 | Smiths Industries Plc | Laryngeal mask assemblies |
GB2359996A (en) * | 2000-02-08 | 2001-09-12 | Smiths Industries Plc | Masks and their manufacture |
GB2404863A (en) * | 2003-08-14 | 2005-02-16 | Muhammed Aslam Nasir | Laryngeal airway device with a non-inflatable cuff |
US9937311B2 (en) | 2012-01-27 | 2018-04-10 | Ashkal Developments Limited | Stopper 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 |
US10625037B2 (en) | 2013-12-17 | 2020-04-21 | Intersurgical Ag | Intubating airway device |
GB2582436A (en) * | 2019-01-25 | 2020-09-23 | Hung Shan Chih | Laryngeal mask airway device |
US11701484B2 (en) | 2017-12-13 | 2023-07-18 | Ashkal Developments Limited | Airway device |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6668821B2 (en) | 1996-02-26 | 2003-12-30 | Evergreen Medical Incorporated | Laryngeal mask airway |
US6634354B2 (en) | 1996-02-26 | 2003-10-21 | Evergreen Medical Incorporated | Laryngeal mask airway |
US20050139220A1 (en) * | 1996-02-26 | 2005-06-30 | Evergreen Medical Incorporated | Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube |
US5878745A (en) * | 1996-03-01 | 1999-03-09 | Brain; Archibald I.J. | Gastro-laryngeal mask |
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 |
US6055984A (en) * | 1996-11-06 | 2000-05-02 | Brain; Archibald I. J. | Endotracheal tube construction |
US6079409A (en) * | 1997-07-25 | 2000-06-27 | Brain; Archibald Ian Jeremy | Intubating laryngeal mask |
US7331346B2 (en) * | 1997-12-24 | 2008-02-19 | Indian Ocean Medical, Inc. | Monitoring and control for a laryngeal mask airway device |
GB9727367D0 (en) * | 1997-12-24 | 1998-02-25 | Brain Archibald Ian Jeremy | Improvements in laryngeal mask airway devices |
GB9817537D0 (en) | 1998-08-13 | 1998-10-07 | Brain Archibald Ian Jeremy | A laryngear mask airway with mutually independant laterally-placed ultra-flexible eastric access/discharge and airway tubes |
GB9821771D0 (en) * | 1998-10-06 | 1998-12-02 | Brain Archibald Ian Jeremy | Improvements relating to laryngeal mask airway devices |
US6705318B1 (en) * | 1999-04-09 | 2004-03-16 | Archibald I. J. Brain | Disposable LMA |
ATE381364T1 (en) | 1999-04-09 | 2008-01-15 | Laryngeal Mask Co Ltd | SINGLE USE LARYNX MASK |
US6631720B1 (en) * | 1999-10-07 | 2003-10-14 | Archibald I. J. Brain | Laryngeal mask with large-bore gastric drainage |
US6511676B1 (en) * | 1999-11-05 | 2003-01-28 | Teni Boulikas | Therapy for human cancers using cisplatin and other drugs or genes encapsulated into liposomes |
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 |
US6705322B2 (en) * | 2002-03-11 | 2004-03-16 | Ti-Li Chang | Laryngeal mask airway |
US7040312B2 (en) * | 2002-05-16 | 2006-05-09 | Engineered Medical Systems, Inc. | Perilaryngeal oral airway with flexible tip guide |
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 |
TWM240225U (en) * | 2003-04-10 | 2004-08-11 | Di-Li Jang | Improved throat mask |
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 |
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 |
GB0510951D0 (en) * | 2005-05-27 | 2005-07-06 | Laryngeal Mask Company The Ltd | Laryngeal mask airway device |
US7900632B2 (en) * | 2006-08-18 | 2011-03-08 | Cookgas, L.L.C. | Laryngeal mask with esophageal blocker and bite block |
US7878201B2 (en) * | 2006-09-29 | 2011-02-01 | Mongeon Douglas R | Supraglottic airway device and method of use |
GB2444779A (en) | 2006-12-14 | 2008-06-18 | Archibald Ian Jeremy Brain | A laryngeal mask with with drug delivery means |
US7988106B2 (en) | 2007-02-23 | 2011-08-02 | Carnevali Jeffrey D | Adaptive mounting structure |
GB0810169D0 (en) | 2008-06-04 | 2008-07-09 | Cosmeplast Ets | Improvements relating to respiratory interface devices |
GB0903654D0 (en) | 2009-03-03 | 2009-04-15 | Laryngeal Mask Company The Ltd | Artificial airway device |
DE10796578T1 (en) | 2009-07-06 | 2018-10-31 | Teleflex Life Sciences Unlimited Company | ARTIFICIAL AIRWAY |
US9528897B2 (en) | 2009-08-13 | 2016-12-27 | Chimden Medical Pty Ltd | Pressure indicator |
GB201010647D0 (en) | 2010-06-24 | 2010-08-11 | Docsinnovent Ltd | Stopper device |
GB201016562D0 (en) | 2010-10-01 | 2010-11-17 | Laryngeal Mask Company The Ltd | Artificial airway device |
CA3021966A1 (en) | 2010-10-15 | 2012-04-19 | Teleflex Life Sciences Unlimited Company | Artificial airway device |
US10549054B2 (en) | 2011-02-02 | 2020-02-04 | Teleflex Life Sciences Unlimited Company | Artificial airway |
USD688787S1 (en) | 2011-06-08 | 2013-08-27 | Intersurgical Ag | Airway device cap and strap holder |
USD665254S1 (en) | 2011-06-08 | 2012-08-14 | Intersurgical Ag | Airway device packaging |
USD712244S1 (en) | 2011-09-23 | 2014-09-02 | Intersurgical Ag | Medical device package |
GB201120628D0 (en) | 2011-11-30 | 2012-01-11 | Laryngeal Mask Company The Ltd | Endoscopy device |
USD761952S1 (en) | 2012-07-27 | 2016-07-19 | Docsinnovent Limited | Airway device |
US9999546B2 (en) | 2014-06-16 | 2018-06-19 | Illinois Tool Works Inc. | Protective headwear with airflow |
AU201714823S (en) | 2017-02-27 | 2017-10-12 | Teleflex Life Sciences Unlimited Co | Laryngeal mask airway device |
US11812816B2 (en) | 2017-05-11 | 2023-11-14 | Illinois Tool Works Inc. | Protective headwear with airflow |
CN110141528A (en) * | 2019-05-05 | 2019-08-20 | 欧标(广州)化妆品有限公司 | A kind of foaming patch facial mask |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2205499A (en) * | 1987-06-05 | 1988-12-14 | Archibald Ian Jeremy Brain | Artificial airway device |
WO1998050096A1 (en) * | 1997-05-02 | 1998-11-12 | Kamen Jack M | Foam cuff for laryngeal mask airway |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3640282A (en) * | 1970-08-06 | 1972-02-08 | Jack M Kamen | Tracheal tube with normally expanded balloon cuff |
US3799173A (en) * | 1972-03-24 | 1974-03-26 | J Kamen | Tracheal tubes |
US4495948A (en) * | 1981-08-10 | 1985-01-29 | Bivona Surgical Instruments, Inc. | Tracheal tubes |
GB2111394B (en) * | 1981-12-16 | 1985-09-11 | Archibald Ian Jeremy Brain | Artificial airway device |
GB2128561A (en) * | 1982-08-27 | 1984-05-02 | Archibald Ian Jeremy Brain | A detachable and adjustable wheel guard |
GB2229367A (en) * | 1989-03-22 | 1990-09-26 | Archibald Ian Jeremy Brain | Artificial airway device |
GB9004315D0 (en) * | 1990-02-27 | 1990-04-25 | Brain Archibald Ian Jeremy | Artificial airway device |
GB2249959A (en) * | 1990-11-20 | 1992-05-27 | Archibald Ian Jeremy Brain | Artificial airway device |
GB9102821D0 (en) * | 1991-02-11 | 1991-03-27 | Brain Archibald Ian Jeremy | An intubating laryngeal mask airway |
GB9119703D0 (en) * | 1991-09-14 | 1991-10-30 | Dingley John | Medico-surgical device |
MX9301163A (en) * | 1992-03-05 | 1994-07-29 | Brain Archibald Ian Jeremy | LARINGEA MASK AND METHOD FOR ITS MANUFACTURE. |
GB9204754D0 (en) * | 1992-03-05 | 1992-04-15 | Brain Archibald Ian Jeremy | Mould for manufacture of a laryngeal mask |
US5249571A (en) * | 1992-05-21 | 1993-10-05 | Brain Archibald Ian Jeremy | Laryngeal clamp airway |
US5241956A (en) * | 1992-05-21 | 1993-09-07 | Brain Archibald Ian Jeremy | Laryngeal mask airway with concentric drainage of oesophagus discharge |
GB9215455D0 (en) * | 1992-07-21 | 1992-09-02 | Brain Archibald Ian Jeremy | A laryngeal mask airway adapted to carry a reflecting-type oximeter |
US5297547A (en) * | 1992-07-30 | 1994-03-29 | Brain Archibald Ian Jeremy | Laryngeal mask construction |
US5355879A (en) * | 1992-09-28 | 1994-10-18 | Brain Archibald Ian Jeremy | Laryngeal-mask construction |
JP2779992B2 (en) * | 1992-11-06 | 1998-07-23 | 暢 佐藤 | Emergency resuscitation esophageal airway |
US5342858A (en) * | 1993-06-30 | 1994-08-30 | The Procter & Gamble Company | Elastomeric adhesive foam |
DE4339706C1 (en) * | 1993-11-22 | 1995-04-27 | Michael Keim | Trachaelic cannula for mechanical ventilation of tracheotomized patients |
GB9411215D0 (en) * | 1994-06-04 | 1994-07-27 | Brain Archibald Ian Jeremy | A fibreoptic intubating laryngeal mask airway |
US5477851A (en) * | 1995-01-26 | 1995-12-26 | Callaghan; Eric B. | Laryngeal mask assembly and method for removing same |
US5513627A (en) * | 1995-01-27 | 1996-05-07 | Flam; Gary H. | Esophageal tracheal intubator airway |
GB2298797B (en) * | 1995-03-14 | 1998-12-09 | Smiths Industries Plc | Laryngeal mask airways |
GB9505134D0 (en) * | 1995-03-14 | 1995-05-03 | Smiths Industries Plc | Laryngeal mask airways |
DE29521244U1 (en) * | 1995-10-10 | 1996-10-17 | Vbm Medizintechnik Gmbh | Transpharyngeal tube for intubation anesthesia |
US5623921A (en) * | 1996-04-10 | 1997-04-29 | Kinsinger; J. William | Laryngeal mask airway and method for its use |
US6070581A (en) * | 1996-10-16 | 2000-06-06 | Augustine Medical, Inc. | Laryngeal airway device |
-
1997
- 1997-10-16 GB GBGB9721840.8A patent/GB9721840D0/en active Pending
-
1998
- 1998-10-01 EP EP98307997A patent/EP0911049A1/en not_active Withdrawn
- 1998-10-02 GB GB9821346A patent/GB2330312B/en not_active Expired - Lifetime
- 1998-10-07 AU AU88322/98A patent/AU728123B2/en not_active Ceased
- 1998-10-08 US US09/168,115 patent/US6012452A/en not_active Expired - Fee Related
- 1998-10-13 JP JP10290987A patent/JPH11192304A/en active Pending
- 1998-10-15 CA CA002250377A patent/CA2250377A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2205499A (en) * | 1987-06-05 | 1988-12-14 | Archibald Ian Jeremy Brain | Artificial airway device |
WO1998050096A1 (en) * | 1997-05-02 | 1998-11-12 | Kamen Jack M | Foam cuff for laryngeal mask airway |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2323292B (en) * | 1997-03-18 | 2001-02-14 | Smiths Industries Plc | Laryngeal mask assemblies |
GB2359996A (en) * | 2000-02-08 | 2001-09-12 | Smiths Industries Plc | Masks and their manufacture |
GB2359996B (en) * | 2000-02-08 | 2004-08-04 | Smiths Group Plc | Masks and their manufacture |
US10040231B2 (en) | 2002-08-14 | 2018-08-07 | Muhammed Aslam Nasir | Airway device |
GB2404863A (en) * | 2003-08-14 | 2005-02-16 | Muhammed Aslam Nasir | Laryngeal airway device with a non-inflatable cuff |
GB2404863B (en) * | 2003-08-14 | 2008-05-14 | Muhammed Aslam Nasir | Improved airway device |
US9937311B2 (en) | 2012-01-27 | 2018-04-10 | Ashkal Developments Limited | Stopper device |
US10625037B2 (en) | 2013-12-17 | 2020-04-21 | Intersurgical Ag | Intubating airway device |
USD842456S1 (en) | 2015-12-15 | 2019-03-05 | Intersurgical Ag | Airway device |
USD877888S1 (en) | 2015-12-15 | 2020-03-10 | Intersurgical Ag | Airway device |
US11701484B2 (en) | 2017-12-13 | 2023-07-18 | Ashkal Developments Limited | Airway device |
GB2582436A (en) * | 2019-01-25 | 2020-09-23 | Hung Shan Chih | Laryngeal mask airway device |
Also Published As
Publication number | Publication date |
---|---|
AU728123B2 (en) | 2001-01-04 |
EP0911049A1 (en) | 1999-04-28 |
AU8832298A (en) | 1999-05-06 |
CA2250377A1 (en) | 1999-04-16 |
US6012452A (en) | 2000-01-11 |
GB9721840D0 (en) | 1997-12-17 |
JPH11192304A (en) | 1999-07-21 |
GB2330312B (en) | 2002-06-12 |
GB9821346D0 (en) | 1998-11-25 |
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