GB2534536A - Tracheal tubes with a pharyngeal absorbent open cell foam pack - Google Patents
Tracheal tubes with a pharyngeal absorbent open cell foam pack Download PDFInfo
- Publication number
- GB2534536A GB2534536A GB1419837.8A GB201419837A GB2534536A GB 2534536 A GB2534536 A GB 2534536A GB 201419837 A GB201419837 A GB 201419837A GB 2534536 A GB2534536 A GB 2534536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- open cell
- cell foam
- pack
- pva
- tracheal
- 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.)
- Withdrawn
Links
- 239000006260 foam Substances 0.000 title abstract description 31
- 230000002745 absorbent Effects 0.000 title description 6
- 239000002250 absorbent Substances 0.000 title description 6
- 210000003800 pharynx Anatomy 0.000 abstract description 26
- 239000012530 fluid Substances 0.000 abstract description 7
- 230000036760 body temperature Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 210000004369 blood Anatomy 0.000 description 9
- 239000008280 blood Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 238000001356 surgical procedure Methods 0.000 description 6
- 208000031649 Postoperative Nausea and Vomiting Diseases 0.000 description 4
- 230000028327 secretion Effects 0.000 description 4
- 206010068319 Oropharyngeal pain Diseases 0.000 description 3
- 201000007100 Pharyngitis Diseases 0.000 description 3
- 238000009537 direct laryngoscopy Methods 0.000 description 3
- 210000001559 fluids and secretion Anatomy 0.000 description 3
- 210000003484 anatomy Anatomy 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 238000001949 anaesthesia Methods 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
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. ventilators; 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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/024—Measuring pulse rate or heart rate
- A61B5/02416—Measuring pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
-
- 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. ventilators; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0434—Cuffs
- A61M16/0443—Special cuff-wall 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0434—Cuffs
- A61M16/0454—Redundant cuffs
- A61M16/0459—Redundant cuffs one cuff behind another
-
- 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. ventilators; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
- A61M16/0497—Tube stabilizer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4836—Diagnosis combined with treatment in closed-loop systems or methods
-
- 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. ventilators; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0475—Tracheal tubes having openings in the tube
- A61M16/0477—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids
- A61M16/0479—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids above the cuff, e.g. giving access to the upper trachea
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Cardiology (AREA)
- Physics & Mathematics (AREA)
- Physiology (AREA)
- Otolaryngology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- External Artificial Organs (AREA)
Abstract
An endotracheal tube has a PVA open cell foam pack (5) attached to the Endotracheal Tube above the level of the tracheal cuff (3), located 8cm from the distal tip (1). When challenged by any type of fluid at body temperature instantly expands and has a high volume absorption capacity, fully sealing the lower pharynx and delivering a gentle seal that is automatically removed on extubation of the endotracheal tube.
Description
ENDOTRACHEAL TUBES WITH A PHARYNGEAL ABSORBENT OPEN CELL FOAM PACK
Background
A wide variety of Endotracheal Tubes are available for incubation to secure the lower airway (below the level of the vocal chords) during all general anaesthesia procedures, when ventilation is required. Surgical procedures that are undertaken above the level of the larynx can lead to blood and secretions, increasing the risk of post operative nausea and vomiting. For the past 150 years, throat packs have been used to reduce this risk. Throat packs generally comprise of a gauze type material, which is packed into the lower pharynx and absorbs the blood and secretions. It has been well documented that the use of this type of throat pack, can lead to retention of the pack following surgery and is associated with a significant increase of patient sore throat following surgery due to the vigorous packing of the pharynx around the Endotracheal Tube.
introduction
The material PVA. open cell foam is currently used in the ENT and Ophthalmology sector for absorption of fluids and blood during surgery. Our new range of Endotracheal Tubes incorporates a highly compressed version of this material, that when challenged by blood, secretions or fluids at body temperature, rapidly expands to fully seal the pharynx. The material has the capacity to absorb 10 (ten) times its own volume, whilst remaining adhered to the Endotracheai Tube. The material is extremely soft and gentle to the pharynx and is fully compliant to the anatomical structures during extubation.
Problem 1: Retained Throat/Pharyngeal Packs ("Never Events") The World Health Organisation (WHO) has classified the retention of a throat pack as a "never event". This is now classed as a reportable offence and clinicians are now required to significantly reduce the number of "never events" occurring. Our new range of failsafe Endotracheal Tubes overcomes the need fora throat pack to be used in ENT, Head & Neck, Dental and Neurosurgical procedures. The PVA open cell foam pack (5) is attached to the Tracheal Tubes eliminating the risk of the throat pack being retained following extubation.
Problem 2: Past Operative Sore Throat Patients following ENT, Head & Neck, Dental and Neurosurgical procedures often complain of a sore throat the next post operative day. This can be due to over packing or vigorous packing of the pharynx. There is a wide inconsistency in the techniques used when packing the pharynx. Our new range of Endotracheal Tubes are supplied with a correctly positioned and consistent volume of PVA open cell foam pack (5) that leads to a uniformed seal in all patients, preventing vigorous and over packing of the pharynx.
Problem 3: Post Operative Nausea and Vomiting Post operative nausea and vomiting can occur due to a poor packing technique by the clinician. This can lead to blood, secretions and fluid bypassing the throat pack and entering the oesophagus.
Patients who have a full stomach due to the bypassing of the throat pack have a significantly higher risk of nausea and vomiting during recovery. This can lead if unchecked, to aspiration and possible death. Our new range of Endotracheal Tubes with PVA open cell foam pack (5) correctly positioned and consistent in its sealing ability, will act as a secure seal absorbing up to 10 (ten) times its initial volume, reducing the risk of post operative nausea and vomiting.
Problem 4: Inflatable Seal Devices of the Pharynx require increased suction and limit the vision the surgical field Inflatable seal devices that have been designed to overcome the use off throat pack have been associated with the increased need of suction above the level of the inflatable seal, this has also limited the vision of the surgical field due to the increased amount of fluid in the upper pharynx. Our new absorbent PVA open cell foam pack (5) once correctly placed in the lower pharynx and activated by fluid, delivers a fully absorbent, gentle and compressible seal of the pharynx, whilst remaining attached to the Endotracheal Tube. The increased absorbency of our material reduces the need for increased suction and improves the vision of the surgical field.
Problem 5: Difficulty in Locating Throat Pack following Surgery During upper airway surgery, blood and debris heavily stain the throat pack with blood clotting around the upper edge, making it difficult to locate the pack due to it becoming obscured and difficult to see during direct laryngoscopy. Our new range of Endotracheal Tubes with its prefixed PVA open cell foam pack (5) will eliminate the need for direct laryngoscopy, as the pack will automatically be removed when the patient is extubated.
Problem 6: Endotracheal Tube Stability during some Neurosurgical Procedures During some neurosurgical procedures the intubatecl patient is placed in the prone position, the stability of the Endotracheal Tube is solely down to the inflation of the tracheal cuff (3). With our new range of Endotracheal Tubes the PVA open cell foam pack (5) when fully expanded, will help to increase the stability of the tube.
Description Summajy
Our new range of Endotracheai Tubes with a pharyngeal absorbent open cell foam pack has been designed to eliminate the need for a throat/pharyngeal pack to be used on patients that are intubated for ENT, Head & Neck, Dental and Neurosurgical procedures. The most significant element of our design is the correctly positioned, prefixed, PVA open cell foam pack (5) which is attached to the Endotracheal Tubes and is supplied highly compressed, increasing the visibility and aiding placement of the tube during direct laryngoscopy. The compressed PVA open cell foam pack (5) is activated when challenged by blood, secretions and fluid at body temperature. The PVA open cell foam pack (5) expands rapidly and gently to deliver a complete and totally absorbent fluid seal in the lower pharynx. On extubation of the Endotracheal Tube, the PVA open cell foam pack (5) gently compresses around the anatomical structures allowing for a safe removal.
There are four versions of our design. The first as shown in FIG.1 is of a standard Tracheal Tube (6) this comprises of a 15mm male connector (7) that allows for connection to the breathing system. The connector has a push and twist fitting into a graduated Tracheal Tube constructed from PVC or silicone. Towards the distal tip (1) there are two positional markings (4) above the level of the tracheal cuff (3). The tracheal tuff (3) is inflated and deflated via the inflation line (8) when a syringe is connected to the luer valve connector (9). Between the tracheal cuff (3) and the distal tip (1) there is a Murphy eye (2), which is a small aperture aiding ventilation. The PVA open cell foam pack (5) is attached and positioned Scm from the distal tip along the outer wall of the tube for 5cm towards the 15mm male connector (7). Once fully activated by blood, secretions and fluids at body temperature, the PVA open cell foam pack (5) rapidly expands as shown in FIG.2.
The same PVA open cell foam pack (5) shown in FIG.1 and FIG 2 also applies to FIG.3 and FIG.4. it is compressed in FIG.3 and fully expanded in FIG.4, but this time attached to preformed south facing Tracheal Tube;10) made to the same specification of the standard Tracheal Tube (6) described in FIG.1, The preformed south facing Tracheal Tube (10) has a more pronounced curve for use in near:firm rosurgical procedures.
The same PVA open cell foam pack (5) shown in FIG.1, FIG.2, FIG.3 and FIG. 4 also applies to FIG.5 and FIG.6. It is compressed in FIG.5 and fully expanded in FIG.5, but this time attached to a reinforced Tracheal Tube (1.1.). The reinforced Tracheal Tube (11.) is constructed from PVC or silicone and has an internal spiral wire running full length of the tube from the distal point of the tracheal cuff (3) to the 15mm male connector (7). The PVA open cell foam pack (5) is constructed and positioned as described in FIG.1.
The same PVA open cell foam pack (5) shown in FIG.1, FIG.2, FIG.3, FiG.a. FIG.5 and FIG.6 also applies to FIC3.7 and F16.8. It is compressed in Fig.7 and fully expanded in FIG.8, but this time the standard Tracheal Tube (0) as described in FIG.1 incorporates a suction port (12) above the level of the tracheal cuff (3) and can be connected to a suction tube via the suction line (13) and the suction tube connector (14). This will aid the removal of any blood, secretions or fluid that may be squeezed out of the PVA open cell foam pack (5) during extubation.
BRIEF DESCRIPTION OF DRAWINGS
1. Distal Tip 2. Murphy Eye 3. Tracheal Cuff 4. Positional Markings S. PVA Open Cell Foam Pack 6. Standard Tracheal Tube 7. 15mm Male Connector 8. Inflation Line 9. Luer Valve Connector 10. Preformed South Facing Tracheal Tube 11. Reinforced Tracheal Tube 12. Suction Port 13. Suction Line 14. Suction Tube Connector FIG.1 A side view of a standard Tracheal Tube (6) with a deflated tracheal cuff (3) along with a fully compressed PVA open cell foam pack N., FIG.2 A side view Of a standard Tracheal Tube (6) with an inflated tracheal cuff (3) along with a fully expanded PVA open cell foam pack (5). FIG.3
A side view of a preformed south facine Tracheal Tube (10) with a deflated tracheal cuff (3) alone with a fully compressed PVA open cell foam pack (5). FIG.4
A side view of a preformed south facing Tracheal Tube (10) with an inflated tracheal cuff (3) along with a fully expanded PVA open cell foam pack (5). FiG.5
A side view of a reinforced Tracheal Tube (11) with a deflated tracheal cuff (3) along with a fully compressed PVA open cell foam pack (5). FIG.6
A side view of a reinforced Tracheal Tube (11) with an inflated tracheal cuff (3) along with a fully expanded PVA open cell foam pack (5). FIG.7
A side view of a standard Tracheal Tube (6) with a suction port (12) above the level of a deflated tracheal cuff (3) along with a fully compressed PVA open cell foam pack (5) incorporating a suction line (13) which ends with a suction tube connector (14).
FIGS
A side view of a standard Tracheal Tube (5) with a suction port (12) above the level of an inflated tracheal cuff;3) along with a fully expanded PVA open cell foam pack (5) incorporating a suction line (13) which ends with a suction tube connector (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1419837.8A GB2534536A (en) | 2014-11-07 | 2014-11-07 | Tracheal tubes with a pharyngeal absorbent open cell foam pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1419837.8A GB2534536A (en) | 2014-11-07 | 2014-11-07 | Tracheal tubes with a pharyngeal absorbent open cell foam pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201419837D0 GB201419837D0 (en) | 2014-12-24 |
| GB2534536A true GB2534536A (en) | 2016-08-03 |
Family
ID=52118140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1419837.8A Withdrawn GB2534536A (en) | 2014-11-07 | 2014-11-07 | Tracheal tubes with a pharyngeal absorbent open cell foam pack |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2534536A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5033466A (en) * | 1989-02-28 | 1991-07-23 | Weymuller Jr Ernest | Doble-cuffed endotracheal tube |
| US5241956A (en) * | 1992-05-21 | 1993-09-07 | Brain Archibald Ian Jeremy | Laryngeal mask airway with concentric drainage of oesophagus discharge |
| WO2000032262A1 (en) * | 1998-12-02 | 2000-06-08 | Tracoe Gesellschaft Für Medizinische Bedarfsgegenstände Mbh | Tubus with sealed cuff |
| US20080078402A1 (en) * | 2006-09-29 | 2008-04-03 | Mongeon Douglas R | Supraglottic airway device and method of use |
-
2014
- 2014-11-07 GB GB1419837.8A patent/GB2534536A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5033466A (en) * | 1989-02-28 | 1991-07-23 | Weymuller Jr Ernest | Doble-cuffed endotracheal tube |
| US5241956A (en) * | 1992-05-21 | 1993-09-07 | Brain Archibald Ian Jeremy | Laryngeal mask airway with concentric drainage of oesophagus discharge |
| WO2000032262A1 (en) * | 1998-12-02 | 2000-06-08 | Tracoe Gesellschaft Für Medizinische Bedarfsgegenstände Mbh | Tubus with sealed cuff |
| US20080078402A1 (en) * | 2006-09-29 | 2008-04-03 | Mongeon Douglas R | Supraglottic airway device and method of use |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201419837D0 (en) | 2014-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |