GB2324733A - Cuffed endotracheal tube - Google Patents
Cuffed endotracheal tube Download PDFInfo
- Publication number
- GB2324733A GB2324733A GB9807237A GB9807237A GB2324733A GB 2324733 A GB2324733 A GB 2324733A GB 9807237 A GB9807237 A GB 9807237A GB 9807237 A GB9807237 A GB 9807237A GB 2324733 A GB2324733 A GB 2324733A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- cuff
- shaft
- patient end
- sleeve
- 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
- A61M16/0434—Cuffs
- A61M16/0436—Special fillings therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S128/00—Surgery
- Y10S128/26—Cannula supporters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S128/00—Surgery
- Y10S128/911—Unilimb inhalation-exhalation breathing tubes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S128/00—Surgery
- Y10S128/912—Connections and closures for tubes delivering fluids to or from the body
Abstract
The cuff 4 on the patient end 2 of a tracheal tube 1 is attached at one end to the inside of the tube and at the opposite end to the outside of the tube. The cuff 4 encloses an axial sleeve 9 that is slidably mounted within the patient end 2 of the tube 1 and is urged forwardly by a resilient collar 10. The sleeve 9 can be retracted by applying vacuum to the cuff 4 and, when released extends forwards to prevent the cuff occluding the patient end 2 of the tube 1.
Description
1 CUFFED MEDICO-SURGICAL TUBES This invention relates to cuffed
medico-surgical tubes.
2324733 Various medico-surgical tubes have an inflatable cuff encircling the tube, which is used to make a seal with a part of the body in which the tube is inserted. The cuff is preferably located as close as possible to the tip of the tube shaft so that it is kept away from the surrounding tissue, to avoid trauma. Although it is possible for a tube to have a cuff that projects beyond the end of the shaft, this brings with it a risk that the cuff might occlude the opening of the shaft, because of the flexible nature of the cuff.
It is an object of the present invention to provide an improved cuffed medico-surgical tube.
According to the present invention there is provided a cuffed medicosurgical tube having a tubular shaft and an expansible cuff member mounted with the shaft close to its patient end, the cuff member projecting beyond the patient end of the shaft in its expanded state, the tube including an axial sleeve member mounted with the shaft close to said patient end, the sleeve member being slidable axially forwards beyond the patient end of said shaft, the cuff member and sleeve member being displaceable forwardly together, and the sleeve member being arranged to prevent the cuff member occluding the patient end of the shaft.
2 The sleeve member may extend within the bore of the shaft at its patient end. One end of the cuff is preferably attached to the inside of the shaft and the sleeve member is preferably enclosed within the cuff member. The sleeve member preferably has a resilient member attached therewith. The sleeve member may be perforated and may be retractable by vacuum applied to the cuff member. The tube may include an elongate member coupled at its patient end with the cuff member, the machine end of the elongate member projecting from the tube towards the machine end of the tube so that the cuff member can be displaced by manually manipulating the machine end of the elongate member. The elongate member may have a resilient portion towards its patient end. The tube is preferably a tracheal tube.
Examples of a cuffed endotracheal tube in accordance with the present invention, will now be described, by way of example, with reference to the accompanying drawings, in which:
Fiaure 1 0 Fic,Ure 2 C Figure 33 Figures 4 to 7 is a side elevation view of the tube; is an enlarged sectional side elevation view of the patient end of the tube with the cuff in an expanded state; is a cut-away perspective view of an alternative part for the tube; are perspective views of other alternative parts for the tube; 3 Figure 8 is an enlarged sectional side elevation view of the patient end of the tube with the cuff in retracted state; Figure 9 is an enlarged sectional side elevation view of the patient end of a modified tube; Figure 10 is a sectional side elevation view of a further alternative tube; Figures 11 and 12 are perspective views of alternative parts for a tube; Figure 1 -3 3 is a side elevation view of a modified forTn of the part shown in Figure 12; and Figure 14 is a side elevation view of a modification of the parts shown in Figures 11 to 13.
With reference to Figures 1 to 8, the endotracheal tube has a curved tubular shaft 1 with a hollow bore, a patient end 2 and a machine end 3. A cuff 4 encircles the shaft 1 at the patient end 2 and is expanded and deflated via a lumen 5 extending within the wall of the shaft and communicating with the inside of the cuff. Towards its rear end, the lumen 5 is 4 connected with a small bore line 7, which extends to a connector 8. The tube also includes a slidable sleeve 9 located within the cuff 4.
The cuff 4 is of tubular shape and is attached at one end 40 to the inside of the shaft I and at the other end 41 to the outside of the shaft. The sleeve 9 is of cylindrical shape and extend coaxially within the patient end of the shaft. The inside end 40 of the cuff 4 is folded around the rear end of the sleeve 9 and extends along the inside of the sleeve, around its forward end and rearwardly back along its outside to a point along the outside of the shaft where it is attached to its wall, so that the sleeve is enclosed within the cuff. The cuff 4 traps within it a resilient collar 10, which encompasses the forward end of the sleeve 9, the rear end of the collar being attached to the forward end of the shaft 1 and the collar being attached with the sleeve close to its forward end by means of an outwardly projecting rib 42. The collar 10 may be of a resilient foam of bundle of loose resilient fibres, or it may be provided by a one or more springs. Alternatively, the collar 10' may be of a foarn or similar resilient material with additional reinforcing elements 11', as shown in Figure 3), extending diagonally, helically or radially. The reinforcing element I V may be embedded, injection moulded, bonded or welded to the resilie nt material.
The sleeve 9 may be a simple cylindrical sleeve. Alternatively, the sleeve 90 may be perforated with axially-extending slots 91, as shown in Figure 4, or circular holes 92, as shown in Figure 5. Alternatively, the sleeve 93 could have a rigid forward end 94 and a soft rear end 95, as shown in Figure 6, so as to reduce risk of damage to the cuff 4 where it is wrapped around the rear end of the sleeve. In another arrangement, as shown in Figure 7, the sleeve 96 comprises a cylindrical array of parallel pins 97.
The lumen 5 through the shaft I opens into the space within the cuff 4 through an Z opening 12. In its natural state, as shown in Figure 2, both the cuff 4 and the sleeve 9 project beyond the forward end of the shaft I so that the forward tip of the tube is cushioned right up to its edge, the cuff projecting radially outwardly to form a seal with the inside of the trachea.
The cuff 4 is compressed for intubation by applying a vacuum to the line 7, so that the cuff and the resilient collar 10 are compressed and retracted in the manner shown in Figure 8. The tube is introduced in this state and, when located correctly, the vacuum is removed so that the resilience of the collar 10 can expand the cuff 4 forwardly and outwardly. If desired, a small amount of air could be introduced to expand the cuff 4 further outwardly. Any inadvertent overpressure will produce a forward extension of the cuff 4, rather than an inward extension, so there is no risk of the cuff occluding the end of the shaft 1.
Various modifications are possible to the invention. For example, the sleeve 9 need not slide inside the end of the shaft but could, for example, slide in an annular channel 13 formed at the end of the shaft P, as shown in Figure 9.
Instead of using a resilient member to expand the cuff, the tube could have an elongate member such as a wire 30 slidable along a passage in the wall of the shaft 32 and attached at its forward end to the sleeve 9 and at its rear end to a handle 3 1, as shown in 6 Figure 10. The wire could alternatively extend along the main bore of the shaft. The wire could protrude from a machine end connector 33 on the shaft 32, as shown at 30', and be arranged such that the wire is pushed forwards to expand the cuff 4 by contact with a part of a mating connector.
Where a wire is used, it may not be necessary to use a collar of a resilient material since the wire 3 0 itself could be formed with a resilient portion such as by coiling it into a helix 3 3 at its patient end, as shown in Figure 11. Two wires 34 and 35 could be used attached to opposite sides of the helix 33), as shown in Figure 12. The helix 30 could be attached to a flexible tubular element 36 to limit the extent of its axial extension, as shown in Figure 13. In another arrangement, the wires 50 could be attached to a tubular basket assembly 51 with diagonal struts 52 extending between two end pieces 5-35 and 54, as shown in Figure 14.
1 tn The present invention is not confined to tracheal tubes but could be used in any cuffed medico-surgical tube, such as oropharyngeal tubes or laryngeal masks. The extensible axial sleeve member could be provided by a part of the cuff member, such as a part reinforced, such as by braiding.
7
Claims (13)
- A cuffed medico-surgical tube having a tubular shaft and an expansible cuff member mounted with the shaft close to its patient end, wherein the cuff member projects beyond the patient end of the shaft in its expanded state, wherein the tube includes an axial sleeve member mounted with the shaft close to said patient end, wherein the sleeve member is slidable axially forwards beyond the patient end of said shaft, the cuff member and sleeve member being displaceable forwardly together, and wherein the sleeve member is arranged to prevent the cuff member occluding the patient end of the shaft.
- 2. A tube according to Claim 1, wherein the sleeve member extends within the bore of the shaft at its patient end.
- A tube according to Claim 1 or 2, wherein one end of the cuff member is attached to the inside of the shaft.
- 4. A tube according to any one of the preceding claims, wherein the sleeve member is enclosed within the cuff member.
- 5. A tube according to any one of the preceding claims, wherein the sleeve member has a resilient member attached therewith.8
- 6. A tube according to any one of the preceding claims, wherein the sleeve member is perforated.
- A tube according to any one of the preceding claims, wherein the sleeve member is retractable by vacuum applied to said cuff member.
- 8. A tube according to any one of the preceding claims, wherein the tube includes an elongate member coupled at its patient end with said cuff member, and wherein the machine end of the elongate member projects from the tube towards the machine end of the tube so that the cuff member can be displaced by manually manipulaiing the machine end of said elongate member.
- 9. A tube according to Claim 8, wherein said elongate member has a resilient portion towards its patient end.
- 10. A tracheal tube according to any one of the preceding claims.
- A tracheal tube substantially as hereinbefore described with reference to Figures 1 and 2 of the accompanying drawings.
- 12. A tracheal tube substantially as hereinbefore described with reference to Figures 1 and 2 as modified by any one of Figures 3 to 14 of the accompanying drawings.
- 13. Any novel and inventive feature as hereinbefore described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9708568.2A GB9708568D0 (en) | 1997-04-29 | 1997-04-29 | Cuffed medico-surgical tubes |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9807237D0 GB9807237D0 (en) | 1998-06-03 |
GB2324733A true GB2324733A (en) | 1998-11-04 |
GB2324733B GB2324733B (en) | 2001-05-30 |
Family
ID=10811463
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9708568.2A Pending GB9708568D0 (en) | 1997-04-29 | 1997-04-29 | Cuffed medico-surgical tubes |
GB9807237A Expired - Fee Related GB2324733B (en) | 1997-04-29 | 1998-04-04 | Cuffed medico-surgical tubes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9708568.2A Pending GB9708568D0 (en) | 1997-04-29 | 1997-04-29 | Cuffed medico-surgical tubes |
Country Status (5)
Country | Link |
---|---|
US (1) | US5915383A (en) |
EP (1) | EP0875260A3 (en) |
JP (1) | JPH10295816A (en) |
AU (1) | AU726031B2 (en) |
GB (2) | GB9708568D0 (en) |
Families Citing this family (52)
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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 |
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 |
US6318367B1 (en) * | 1998-03-19 | 2001-11-20 | Vital Signs, Inc. | Laryngeal mask assembly |
JPH11299725A (en) * | 1998-04-21 | 1999-11-02 | Olympus Optical Co Ltd | Hood for endoscope |
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 |
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 |
US6609521B1 (en) | 2001-04-09 | 2003-08-26 | Regents Of The University Of Minnesota | Endotracheal tube |
US7159589B2 (en) | 2001-08-23 | 2007-01-09 | Indian Ocean Medical Inc. | Disposable laryngeal mask airway device |
US6837847B2 (en) * | 2002-06-13 | 2005-01-04 | Usgi Medical, Inc. | Shape lockable apparatus and method for advancing an instrument through unsupported anatomy |
GB0218868D0 (en) | 2002-08-14 | 2002-09-25 | Nasir Muhammed A | Improved airway management device |
US20040106901A1 (en) * | 2002-11-30 | 2004-06-03 | Letson William W. | Catheter having a balloon member invertedly attached thereto |
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 |
EP1654025B1 (en) | 2003-08-14 | 2012-03-14 | Muhammed Aslam Nasir | Improved airway device |
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 |
US20080228137A1 (en) * | 2007-03-12 | 2008-09-18 | Pulmonx | Methods and devices for passive residual lung volume reduction and functional lung volume expansion |
US11883029B2 (en) | 2005-01-20 | 2024-01-30 | Pulmonx Corporation | Methods and devices for passive residual lung volume reduction and functional lung volume expansion |
US8496006B2 (en) | 2005-01-20 | 2013-07-30 | Pulmonx Corporation | Methods and devices for passive residual lung volume reduction and functional lung volume expansion |
GB0510951D0 (en) * | 2005-05-27 | 2005-07-06 | Laryngeal Mask Company The Ltd | Laryngeal mask airway device |
US20080177142A1 (en) * | 2007-01-22 | 2008-07-24 | Boston Scientific Scimed, Inc. | Endoscope with dilating insertion tube |
DE102009013205A1 (en) | 2009-03-17 | 2010-09-23 | Dolphys Technologies B.V. | Jet ventilation catheter, in particular for the ventilation of a patient |
GB0719054D0 (en) * | 2007-09-29 | 2007-11-07 | Nasir Muhammed A | Airway device |
GB0903654D0 (en) | 2009-03-03 | 2009-04-15 | Laryngeal Mask Company The Ltd | Artificial airway device |
US20100269830A1 (en) * | 2009-04-24 | 2010-10-28 | Sage Products, Inc. | Fluid Removing Apparatus for Respiratory Tract |
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 |
US20110118817A1 (en) * | 2009-11-17 | 2011-05-19 | Boston Scientific Scimed, Inc. | Stent delivery system |
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 |
USD693920S1 (en) | 2011-06-08 | 2013-11-19 | Intersurgical Ag | Airway device |
USD688787S1 (en) | 2011-06-08 | 2013-08-27 | Intersurgical Ag | Airway device cap and strap holder |
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 |
EP2790764A4 (en) | 2011-12-15 | 2015-06-03 | Univ Leland Stanford Junior | Devices and methods for preventing tracheal aspiration |
GB201201438D0 (en) | 2012-01-27 | 2012-03-14 | Docsinnovent Ltd | Improved stopper device |
USD761952S1 (en) | 2012-07-27 | 2016-07-19 | Docsinnovent Limited | Airway device |
EP3068476A4 (en) | 2013-11-15 | 2017-07-26 | Ciel Medical, Inc. | Devices and methods for airway suctioning |
GB201322200D0 (en) * | 2013-12-16 | 2014-01-29 | Smiths Medical Int Ltd | Cuffed tubes |
GB2555360B (en) | 2013-12-17 | 2018-10-10 | Intersurgical Ag | Intubating Airway Device |
US20170087318A1 (en) * | 2014-03-08 | 2017-03-30 | Smiths Medical International Limited | Cuffed tubes |
USD842456S1 (en) | 2015-12-15 | 2019-03-05 | Intersurgical Ag | Airway device |
GB201720733D0 (en) | 2017-12-13 | 2018-01-24 | Ashkal Development Ltd | Airway device |
US20210235971A1 (en) * | 2020-02-04 | 2021-08-05 | Boston Scientific Scimed, Inc. | Devices, systems, and methods for an instrument accessory |
CN111743779B (en) * | 2020-06-11 | 2023-04-11 | 湘南学院附属医院 | Auxiliary tube feeding device and method for medical nasogastric feeding tube for gastrointestinal surgical nursing |
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WO1995032754A1 (en) * | 1994-05-31 | 1995-12-07 | Mallinckrodt Medical, Inc. | Airway for pharyngeal cavity |
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-
1997
- 1997-04-29 GB GBGB9708568.2A patent/GB9708568D0/en active Pending
-
1998
- 1998-04-04 GB GB9807237A patent/GB2324733B/en not_active Expired - Fee Related
- 1998-04-06 EP EP98302670A patent/EP0875260A3/en not_active Withdrawn
- 1998-04-17 US US09/061,810 patent/US5915383A/en not_active Expired - Fee Related
- 1998-04-17 AU AU61940/98A patent/AU726031B2/en not_active Ceased
- 1998-04-21 JP JP10110332A patent/JPH10295816A/en active Pending
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US5308325A (en) * | 1991-01-28 | 1994-05-03 | Corpak, Inc. | Retention balloon for percutaneous catheter |
WO1995032754A1 (en) * | 1994-05-31 | 1995-12-07 | Mallinckrodt Medical, Inc. | Airway for pharyngeal cavity |
Also Published As
Publication number | Publication date |
---|---|
US5915383A (en) | 1999-06-29 |
AU6194098A (en) | 1998-11-05 |
GB9708568D0 (en) | 1997-06-18 |
EP0875260A2 (en) | 1998-11-04 |
AU726031B2 (en) | 2000-10-26 |
GB2324733B (en) | 2001-05-30 |
GB9807237D0 (en) | 1998-06-03 |
JPH10295816A (en) | 1998-11-10 |
EP0875260A3 (en) | 2000-01-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20030404 |