WO2004006746A2 - Vorrichtung zur seitentrennung der atemwege - Google Patents
Vorrichtung zur seitentrennung der atemwege Download PDFInfo
- Publication number
- WO2004006746A2 WO2004006746A2 PCT/EP2003/006411 EP0306411W WO2004006746A2 WO 2004006746 A2 WO2004006746 A2 WO 2004006746A2 EP 0306411 W EP0306411 W EP 0306411W WO 2004006746 A2 WO2004006746 A2 WO 2004006746A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- ventilation
- bronchus
- patient
- cuff
- Prior art date
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
- A61M16/0404—Special features for tracheal tubes not otherwise provided for with means for selective or partial lung respiration
-
- 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
- A61M16/0402—Special features for tracheal tubes not otherwise provided for
- A61M16/0415—Special features for tracheal tubes not otherwise provided for with access means to the stomach
-
- 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
Definitions
- the invention relates to a device for side separation of the airways in patients or for single ventilation in thoracic surgery. It includes, among other things, a laryngeal mask that is inserted through the mouth in front of the patient's larynx and into which a tube is integrated that is used for lung ventilation.
- the laryngeal mask also known as the laryngeal mask
- it has successfully developed as an alternative to endotracheal intubation.
- Design and handling of the latest version of a laryngeal mask are described in WO 00/09189. It is an oval mask that fills the space around and behind the larynx in the form of a "low pressure cuff". It ensures that the airways are kept clear without breaking the vocal cord barrier. This provides the anesthetist with a safe and effective instrument for ventilating patients during anesthesia.
- the double-lumen tube is preferably used, since this ensures safe lung separation including single lung ventilation, ie the use of fiber-optic bronchoscopy.
- a continuous positive airway pressure (CPAP) can be achieved with the double lumen tube, or alternatively, special ventilation methods can be used.
- CPAP continuous positive airway pressure
- the double lumen tube enables the passage of suction catheters and the rapid ventilation of the side of the lungs that are excluded from ventilation during single ventilation.
- the use of the double lumen tube may be difficult or even impossible, for example in situations of the "difficult" airway or in the case of obstacles for a tube in the region of the trachea and bifurcation.
- the combination of a conventional endotracheal tube with bronchus blockers is considered an alternative solution.
- the bronchial blockers enable the selective blocking of individual bronchi and are also used, for example, to avoid re-intubation when post-ventilation is required. They can be used with preference in children and small adults or in general also in so-called “difficult intubation”.
- the bronchus blockers also have disadvantages.
- the thin lumen of the blocker can easily be laid using secretion or blood.
- the removal of secretions as well as the application of continuously positive airway pressure to secure the oxygen supply on the operative side is more difficult.
- High-frequency jet ventilation is only possible with difficulty without removing the side separation.
- lung separation is not as safe as with the double lumen tube.
- a modified larynx mask is also known which, in addition to the tube for lung ventilation, has an additional large-lumen channel which is provided for the introduction of thicker tubes and instruments, for example also gastroscopes, into the digestive tract.
- thicker tubes and instruments for example also gastroscopes
- the object of the invention is to develop an instrument or a device which, while maintaining the advantages of the larynx mask, eliminates the disadvantages of the double lumen tube and the bronchus blockers available up to now.
- such a device comprises a laryngeal mask for insertion in front of the patient's larynx, into which a first tube, which projects outward through the pharynx when the mask is inserted, and a second tube are integrated.
- This second tube can be inserted into the airways through the first tube. It can be placed with its distal end as required either in the right or left trunk bronchus and has an inflatable cuff at the distal end which, when inflated, hermetically seals the space between its outer circumference and the inner wall of the trunk bronchus.
- there is an outlet opening at the distal end which points into the respective lung side.
- the first tube serves as an airway tube for lung ventilation and the second tube through the first tube serves as a selective bronchus blocker and at the same time also as a catheter tube through which the surgeon or anesthetist can choose Instruments for removing secretions or blood from the respiratory tract, for fiber-optic observation, for ventilation of the side of the lungs, which are excluded from ventilation during lung ventilation can be introduced.
- the cuff is connected via a ventilation channel to a pilot balloon, which can be used to control how far the cuff is inflated.
- the cuff is inflated, for example, by pressing air into the pilot balloon, cuff and ventilation channel system using a syringe, a luer-iock approach advantageously being provided on the pilot balloon for coupling the syringe.
- the anesthetist After placing the distal end in a stem bronchus, the anesthetist thus has the option of inflating the cuff in a controlled manner while observing the pilot balloon and thus securely closing the natural airway to this stem bronchus.
- the cuff is then also vented via the pilot balloon or the Luer-Iock approach.
- the ventilation channel should run in the interior of the second tube, but particularly advantageously in the wall of the second tube.
- the cuff as a low-pressure cuff, in which a membrane in the non-inflated state largely rests on the outer circumference of the second tube and, in the inflated state, bulges out approximately in a barrel shape so that the function of the seal is fulfilled can.
- the first tube is equipped with a separate insertion opening for the second tube, which is located on an insertion nozzle opening into the first tube, the insertion nozzle enclosing an angle of approximately 30 ° with the longitudinal direction of the first tube.
- the first tube should advantageously have an inner diameter of approximately 9 to 12 mm, the second tube an outer diameter in the range of 4 to 6 mm, an inner diameter in the range of 3 to 5 mm and a length of approximately 480 to 540 mm.
- the inner diameter of the second tube which is dimensioned in this way, ensures that thin fiber-optic bronchoscopes, suitable suction catheters or other instruments can be easily passed into the airways. It is also possible to connect a CPAP unit, for example from Mallinkrodt, via appropriate adapters with the ISO standard to use the apnea oxygenation method.
- the outlet opening on the second tube should be inclined by approximately 45 ° in relation to its longitudinal direction and the inflatable cuff should be adapted to this inclination by having diametrically opposite lengths on the circumference of the second tube.
- the second tube immediately in front of its outlet opening, should have a medial curvature which is adapted to the shape and position of the respective trunk bronchus, towards the center of the body.
- the second tube is provided with a scale division in millimeter and / or centimeter steps along its outer wall. This allows the surgeon or anesthesiologist to control the length with which the second tube is advanced into the first tube.
- the choice of material is important insofar as the flexibility and the gliding ability of the second tube have to meet the requirements of safe side separation and protection of the respiratory tract. It is recommended to make the second tube out of PVC, polyethylene or a similar tissue compatible material. And the insertion nozzle on the first tube should be made of the same material as the first tube. In addition, the inlet connector should have a sufficiently high wall stability, which results in an appropriate wall thickness in coordination with the material used, and it should also be provided with an adapter to the outside to the free atmosphere with which the hermetic separation of the respiratory tract in question from the free atmosphere is possible.
- the device according to the invention can be equipped with an additional channel which runs parallel to the first tube and which is used for the passage of tubes and instruments in the serves as an indwelling tract and through which, for example, gastric drainage is possible.
- FIG. 1 shows a schematic diagram of the device according to the invention with a larynx mask placed on a larynx and a first and a second tube; 2 shows a separate illustration of the second tube and FIG. 3 shows an enlarged illustration of the distal end of the second tube.
- a known laryngeal mask 1 is outlined, which is intended for insertion via the mouth in front of the larynx 2 of a patient.
- the larynx mask 1 is shown here placed on the larynx 2.
- the first tube 3 has an insertion stub 4 arranged on the side, which is equipped with an insertion opening 5 for a second tube 6.
- the second tube 6 is shown in Fig.l in the inserted state. It can be seen that the tube 6 exits through the mouth opening of the first tube 3 located in the larynx mask 1, passes through the trachea 7 and is placed with its distal end in the right trunk bronchus 8.
- the distal end of the second tube 6 is enclosed by an inflatable cuff 9 which, when inflated, hermetically seals the space between the outer circumference of the distal end and the inner wall of the right trunk bronchus 8 closes. In relation to the right side of the lungs, the second tube 6 thus acts as a selective bronchus blocker.
- the second tube 6 is designed with an inner diameter D (which makes it possible to insert instruments into the respiratory tract through the second tube 6, for example for the purpose of removing secretions or blood, for fiber-optical observation or also for ventilation of the right side of the lungs , which in the example shown is excluded from ventilation of the left side of the lungs carried out through the first tube.
- a channel 15 is also shown, which can be used if necessary during the operation to carry out instruments for gastric drainage.
- the second tube 6 consists of a tube with a length L 500 mm, an outer diameter D in the range from 4 to 6 mm, an inner diameter D ( in the range from 3 to 5 mm and a wall thickness s) 0.5 mm.
- the second tube 6 is slightly curved at this end in order to adapt to the natural conditions of the left or right trunk bronchus.
- a separate, specially designed second tube 6 can be provided for the right and left trunk bronchus, which is characterized by a suitable design of its distal end or by a suitable inclination of the exit surface 10.
- the inflatable membrane 9 already mentioned above is located near the outlet opening 10.
- the membrane 9 is connected via a ventilation duct 11, which runs on the inner wall in the longitudinal direction of the second tube 6, to a pilot balloon 12, on which a Luer-Iock attachment 13 is arranged.
- a pilot balloon 12 on which a Luer-Iock attachment 13 is arranged.
- Luer-Iock approach 1 3 one usual medical syringe (not shown in the drawing)
- air is pressed into the system from the pilot balloon 1 2, the ventilation channel 1 1 and the cuff 9, the cuff 9 and the pilot balloon 1 2 inflating.
- it can be checked how far the cuff 9 is inflated.
- the second tube 6 Opposite the distal end with the outlet opening 10, the second tube 6 has an inlet opening 14 which allows the introduction of the instruments.
- the ventilation duct 11 emerges near the inlet opening 14 through the wall of the second tube 6 and is connected to the pilot balloon 12 outside the second tube 6.
- the distal end of the second tube 6 is shown enlarged and provided with dimensions as an example.
- the length of the sleeve 9 is adapted to the inclination of the outlet opening 10, whereby on the one hand it has a length of 20 mm and diametrically opposite it has a length of 30 mm.
- the end section of the distal end is curved in a length range of 10 mm, the tangent to this curvature including an angle of 20 * with the longitudinal orientation of the second tube 6.
- the outlet opening 10 has a clear width of approximately 15 mm in the projection direction perpendicular to the longitudinal direction of the second tube 6.
- the larynx mask 1 When using the tube-in-tube system according to the invention, the larynx mask 1 is first placed in front of the larynx 2 in the usual way.
- the first tube 3, which is firmly connected at one end to the larynx mask 1, is positioned such that its opposite end, with the inlet opening 1 4, projects out of the throat of the patient.
- the second tube 6 is now introduced with its outlet opening 10 ahead into the insertion port 4 and gradually through the larynx mask or larynx and subsequently the trachea 7 using fiber-optic endoscopy under direct vision, preferably with constant ventilation of the patient inserted into the selected trunk bronchus.
- the condition here is that the fiber-optic bronchoscope is suitable for this purpose with regard to length, flexibility and lubricity, but in particular with regard to its outer diameter. A corresponding selection of such bronchoscopes is known and is also available.
- the endobronchial sleeve 9 of the second tube 6 can be inflated, as already described, under the usual tightness test or likewise from a fiber-optical point of view.
- the cuff 9 has been inflated, the airways are separated.
- One side of the lungs can now be ventilated via the laryngeal mask 1, the other side of the lungs either shut down with regard to ventilation or included in the gas exchange by connecting the second tube 6 to a CPAP unit.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03763645A EP1526886A2 (de) | 2002-07-16 | 2003-06-18 | Vorrichtung zur seitentrennung der atemwege |
AU2003246549A AU2003246549A1 (en) | 2002-07-16 | 2003-06-18 | Device for the lateral separation of air passages |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002132728 DE10232728C1 (de) | 2002-07-16 | 2002-07-16 | Vorrichtung zur Seitentrennung der Atemwege |
DE10232728.9 | 2002-07-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004006746A2 true WO2004006746A2 (de) | 2004-01-22 |
WO2004006746A3 WO2004006746A3 (de) | 2004-09-10 |
Family
ID=7714776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/006411 WO2004006746A2 (de) | 2002-07-16 | 2003-06-18 | Vorrichtung zur seitentrennung der atemwege |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1526886A2 (de) |
AU (1) | AU2003246549A1 (de) |
DE (1) | DE10232728C1 (de) |
WO (1) | WO2004006746A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2544026B1 (es) * | 2014-02-25 | 2016-05-31 | Medcom Flow S A | Dispositivo para presión positiva continua |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000009189A1 (en) | 1998-08-13 | 2000-02-24 | Archibald Ian Jeremy Brain | Laryngeal mask airway device |
WO2001024860A2 (en) | 1999-10-07 | 2001-04-12 | Archibald Ian Jeremy Brain | Laryngeal mask with large-bore gastric drainage |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9102821D0 (en) * | 1991-02-11 | 1991-03-27 | Brain Archibald Ian Jeremy | An intubating laryngeal mask airway |
DE4447186A1 (de) * | 1994-12-30 | 1996-07-11 | Johann Dr Med Wittenbeck | Larynxmaske (=Kehlkopfmaske) zur fiberoptischen endotrachealen Intubation bei gleichzeitiger künstlicher Beatmung eines Patienten |
US6668821B2 (en) * | 1996-02-26 | 2003-12-30 | Evergreen Medical Incorporated | Laryngeal mask airway |
-
2002
- 2002-07-16 DE DE2002132728 patent/DE10232728C1/de not_active Expired - Fee Related
-
2003
- 2003-06-18 WO PCT/EP2003/006411 patent/WO2004006746A2/de not_active Application Discontinuation
- 2003-06-18 EP EP03763645A patent/EP1526886A2/de not_active Withdrawn
- 2003-06-18 AU AU2003246549A patent/AU2003246549A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000009189A1 (en) | 1998-08-13 | 2000-02-24 | Archibald Ian Jeremy Brain | Laryngeal mask airway device |
WO2001024860A2 (en) | 1999-10-07 | 2001-04-12 | Archibald Ian Jeremy Brain | Laryngeal mask with large-bore gastric drainage |
Also Published As
Publication number | Publication date |
---|---|
AU2003246549A8 (en) | 2004-02-02 |
DE10232728C1 (de) | 2003-06-18 |
AU2003246549A1 (en) | 2004-02-02 |
WO2004006746A3 (de) | 2004-09-10 |
EP1526886A2 (de) | 2005-05-04 |
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