EP2925399A1 - Endotracheal tube having outer and inner cannulae - Google Patents
Endotracheal tube having outer and inner cannulaeInfo
- Publication number
- EP2925399A1 EP2925399A1 EP13861469.8A EP13861469A EP2925399A1 EP 2925399 A1 EP2925399 A1 EP 2925399A1 EP 13861469 A EP13861469 A EP 13861469A EP 2925399 A1 EP2925399 A1 EP 2925399A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cannula
- sleeve
- cuff
- outer cannula
- region
- 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- Withdrawn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
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
- 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
-
- 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
- A61M16/0427—Special features for tracheal tubes not otherwise provided for with removable and re-insertable liner tubes, e.g. for cleaning
-
- 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
- A61M16/044—External cuff pressure control or supply, e.g. synchronisation with 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
- A61M16/0486—Multi-lumen 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
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0816—Joints or connectors
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/82—Internal energy supply devices
- A61M2205/8206—Internal energy supply devices battery-operated
Definitions
- This invention relates to improvements in endotracheal tubes, for example, orotracheal tubes and nasotracheal tubes.
- This invention is directed toward the problem of pooling of saliva and other secretions around the inflated cuff of a tracheal tube, for example, an endotracheal tube, and the potential for such secretions to leak past the cuff and into the lungs.
- Laryngectomy Tubes pp. 568 and 572; Tracheostomy Tube Adult Home Care Guide, Shiley Tracheostomy Products, Mallinckrodt Medical pp. 1 -40; D. Hessler, MD, K. Rehder, MD and S.W. Karveth, MD, "Tracheostomy Cannula for Speaking During Artificial Respiration",
- an endotracheal tube apparatus includes an outer cannula having first and second ends.
- a fenestration is provided along the length of the outer cannula between the first and second ends.
- An inflatable cuff is formed on the outer cannula between the fenestration and the second end.
- a first conduit extends from the cuff for introducing an inflating fluid into the cuff when it is desired to inflate the cuff and removing inflating fluid from the cuff when it is desired to deflate the cuff.
- An inner cannula is sized selectively to be inserted into, and removed from, the outer cannula.
- the inner cannula includes a second conduit to evacuate a region of a trachea of a wearer adjacent the cuff.
- the second conduit includes an opening which lies adjacent the closest point in the fenestration to the cuff when the inner cannula is selectively inserted into a use orientation in the outer cannula.
- the apparatus further includes a gauge coupled in the first conduit for indicating the inflation pressure of the cuff.
- the apparatus further includes a one-way valve at an end of the first conduit remote from the cuff for preventing escape of inflating fluid from the cuff.
- the cuff comprises a sleeve including a first end, a second end, and a third region between the first and second ends.
- the sleeve is located around the outer cannula with at least the first end of the sleeve between the outer cannula and the third region of the sleeve.
- the first and second ends of the sleeve are both between the outer cannula and the third region of the sleeve.
- the apparatus further comprises a first coupler provided on an outer end of the outer cannula and a second coupler provided on an outer end of the inner cannula.
- Each of the first and second couplers is provided with at least one cooperating surface for guiding the inner cannula into a predetermined orientation with respect to the outer cannula when the inner cannula is inserted into the outer cannula.
- the apparatus further comprises at least one tab provided on an outer end of one of the outer cannula and the inner cannula.
- the at least one tab includes an engaging surface.
- At least one coupler is provided on an outer end of the other one of the outer cannula and the inner cannula for engagement by the at least one tab.
- the at least one coupler includes a portion for cooperating with the engaging surface for orienting the inner cannula in a predetermined orientation with respect to the outer cannula.
- the at least one tab is flexibly formed or mounted to said one of the outer cannula and the inner cannula.
- a tracheal tube apparatus includes a cannula having first and second ends.
- An inflatable cuff is formed on the cannula between the first and second ends.
- a conduit extends from the cuff for introducing an inflating fluid into the cuff when it is desired to inflate the cuff and removing inflating fluid from the cuff when it is desired to deflate the cuff.
- a gauge is coupled to the conduit for indicating the inflation pressure of the cuff.
- the apparatus further includes a one-way valve at an end of the conduit remote from the cuff.
- the one-way valve prevents escape of inflating fluid from the cuff.
- the cuff comprises a sleeve including a first end, a second end, and a third region between the first and second ends.
- the sleeve is located around the cannula with at least the first end of the sleeve between the cannula and the third region of the sleeve.
- the first end of the sleeve and the second end of the sleeve are both between the cannula and the third region of the sleeve.
- Fig. 1 illustrates a fragmentary perspective view of a system according to the invention in a disassembled configuration
- Fig. l a illustrates a longitudinal sectional side elevational view of the anatomy of the upper airway of a wearer with the apparatus illustrated in Fig. 1 in place;
- Fig. 2 illustrates a perspective view of a portion of the system illustrated in Fig. l ;
- Fig. 3 illustrates a perspective view of a portion of the system illustrated in Fig.
- Fig. 4 illustrates an enlarged longitudinal sectional side elevational view of a detail of Figs. 1 and 3, taken generally along section lines 4-4 of Fig. 3;
- Fig. 5 illustrates an enlarged longitudinal sectional side elevational view of a detail of Figs. 1 and 2, taken generally along section lines 5-5 of Fig. 2;
- Fig. 5a illustrates an enlarged longitudinal sectional side elevational view of an alternative detail to the detail illustrated in Fig. 5;
- Figs. 6a-c illustrate enlarged front elevational, side elevational and rear elevational views, respectively, of a detail of Figs. 1 and 2;
- Figs. 7a-e illustrate schematic circuit diagrams of the detail illustrated in Figs.
- an endotracheal tube system 10 here an orotracheal tube system, includes an outer cannula 12 for insertion through the mouth of a wearer 20, down the wearer 20's pharynx 24, through the wearer 20's glottis 22 and into the wearer 20's trachea 18.
- Outer cannula 12 includes an inflatable cuff 16.
- Cuff 16 lies in the trachea 18 of the wearer 20 below the wearer 20's glottis 22.
- Outer cannula 12 also includes a first port 26 which resides outside the mouth of the wearer 20 during use and a second port 28 which resides inside the trachea 18 of the wearer 20 below cuff 16 during use.
- the cuff 16 is inflatable through a conduit 30 once the outer cannula 12 is in place in the trachea 18 to minimize the passage of secretions 32 from the upper respiratory tract downward into the lungs of the wearer 20. Such secretions 32 pool above the cuff 16 (that is, on the side of the cuff 16 opposite the lungs) when the cuff 16 is inflated in place.
- the construction of the cuff 16 as a sleeve 42, Fig. 5, with its upper and lower ends 44, 46, respectively, tucked under, rather than extending beyond the cuff 16 up and down the outer sidewall of the outer cannula 12, is aided by the use of thin-walled material for the cuff 16.
- Fig. 5a only upper end 44' is tucked under, rather than extending beyond the cuff 16 up the outer sidewall of the outer cannula 12'.
- the constructions illustrated in Figs. 5 and 5a provide certain benefits which will be discussed subsequently.
- the outer cannula 12 includes (a) fenestration(s) 56. Although two such fenestrations 56 are illustrated, it should be understood that any number of fenestrations 56 may be provided in the outer cannula 12 for this purpose.
- fenestration(s) 56 Although two such fenestrations 56 are illustrated, it should be understood that any number of fenestrations 56 may be provided in the outer cannula 12 for this purpose.
- Fig. 5a permits location of the fenestration(s) 56 low (that is, more toward the lungs of the wearer 20) on the outer cannula 12.
- the proximity of the cuff 16 to the fenestration(s) 56 also provides some additional protection of the tissue of the trachea 18 against irritation and damage occasioned by contact with the edges of the fenestration(s) 56 by virtue of the standoff provided by the inflated cuff 16.
- an inner cannula 60 is inserted into the lumen 62 of the outer cannula 12.
- a conduit 70 extends down the sidewall of inner cannula 60.
- Conduit 70 terminates at an open end 72 at the bottommost extent of fenestrations 56 to expose the secretions 32 to suction at open end 72 of tube 70 provided by a suction source 73 at the outer end of inner cannula 60.
- this location Owing to the construction of cuff 16 with its doubled-under end 44, this location generally coincides with the top of the cuff 16 at the bottommost extent of fenestration 56. Owing to this construction, extraction of secretions 32 is somewhat more predicable and complete.
- both the outer 12 and inner cannulae 60 are constructed from suitable filled and/or unfilled resin(s) and/or polymer(s). Inner cannula 60 typically can be relatively
- the inner cannula 60 is releasably fixed to an outer cannula 12 by one or more (two in the illustrated embodiment) locking tabs 100 which may be formed with, and from the same material as, the coupler 76 of cannula 60 by which cannula 60 is coupled to the ventilator 74.
- the tabs 100 are flexibly formed or mounted to the coupler 76 of inner cannula 60.
- the tabs 100 are provided with engaging surfaces 106.
- a coupler 108 is provided at the proximal end 54 of outer cannula 12.
- the coupler 108 includes a notch 1 14 for receiving the portion of each tab 100 which extends beyond engaging surfaces 106 and portions 1 16 for capturing engaging surfaces 106. This configuration also promotes correct orientation of inner cannula 60 with the fenestration(s) (56 in Fig. 1) of outer cannula 12 when inner cannula 60 is inserted into outer cannula 12.
- a digital pressure gauge 304 is inserted into the conduit 30 between a fitting 302 and cuff 16 by a fitting 306 provided on gauge 304.
- Fitting 302 is configured complementarity to a fitting on a source 307 of compressed air, such as a syringe.
- a fitting might be, for example, a Luer lock fitting or other suitable fitting to couple the compressed air source to fitting 302 for this purpose.
- Fitting 302 may also include a one-way valve of a suitable type, such as, for example, a ball valve, to prevent the escape of cuff 16-inflating air, permitting the compressed air source 307 to be disconnected from fitting 302 once cuff 16 is inflated to a suitable pressure.
- gauge 304 removed from its housing 305 is illustrated in Figs. 6a-c.
- An electrical schematic of gauge 304 is illustrated in Figs. 7a-e.
- gauge 304 includes a two digit (seven segments each) liquid crystal display (LCD) 310 which illustratively is a Glory Sound (Asia) Ltd., AE359 type DS-M2684-F display.
- the driver 312 for display 310 illustratively is a Freescale Semiconductor MC9S08QB4QFN microcontroller ( ⁇ ).
- Pins 1-4, the Vdd, Vrefh, Vrefl and Vss terminals, respectively, of driver 312 are coupled to the gauge 304's +Vbat, +Vbat, common and common terminals, respectively.
- Vrefh is coupled to +Vbat through a 1.8 ⁇ inductor.
- +Vbat and common are the + and - terminals, respectively, of, for example, a 3V lithium PC 2 pin mount, 170 mAh coin cell 313 such as, for example, a Renata SA type 614-CR2025FH-MFR-LF coin cell. See Figs. 6a-c.
- the parallel combination of a 2.2 ⁇ capacitor and a 100 nF capacitor is coupled across pins 1 and 4 of ⁇ 312.
- the parallel combination of a 2.2 F capacitor and a 100 nF capacitor is coupled across pins 2 and 3. Pins 5-24, terminals
- driver 312 are coupled to LCD COM, LCD segment 1G, LCD segment IF, LCD segment IE, LCD segment 2B, LCD segment 2A, LCD segment ID, LCD segment 1C, LCD segment IB, LCD segment 1A, LCD segment 2G, LCD segment 2F, LCD segment 2E, not connected, the gauge 304's TEMPerature terminal, the gauge 304's
- pressure at port 306 which is the cuff 16 inflation pressure
- a pressure sensor 320 illustratively a Freescale
- Sensor 320 pins 1-4 are coupled respectively to the gauge 304 common, through a 10 ⁇ resistor to the non-inverting (+) input terminal, pin 3, of a differential amplifier 322, to gauge 304's +Vbat terminal, and through a 10 ⁇ resistor to amplifier 322's inverting (-) input terminal, pin 2.
- Amplifier 322 illustratively is one-fourth of a National Semiconductor type LMC6464AIM quad differential amplifier. Feedback is provided from the output terminal, pin 1, of amplifier 322 to the - input terminal of amplifier 322 through a 100 ⁇ resistor. Pin 4 of amplifier 322 is coupled to +Vbat.
- Pin 1 1 of amplifier 322 is coupled to common.
- the parallel combination of a 2.2 ⁇ capacitor and a 100 nF capacitor is coupled across +Vbat and common.
- Pin 1 of amplifier 322 is coupled to a + terminal, pin 5 of a differential amplifier 324.
- An output terminal, pin 7, of amplifier 324 is coupled to amplifier 324's - input terminal, pin 6, configuring amplifier 324 as a unity gain buffer.
- Pin 7 of amplifier 324 forms the gauge 304's NET _PRESSure terminal.
- Amplifier 324 illustratively is one-fourth of a National
- a 10 ⁇ , 1% thermistor 330 such as a Vishay type 71-
- TFPT1206L1002FV thermistor and a 10 ⁇ , 1% resistor are coupled in series between +Vbat and common.
- the common terminal of thermistor 330 and the 10 ⁇ resistor is coupled to the + input terminal, pin 12, of a differential amplifier 332.
- An output terminal, pin 14, of amplifier 332 is coupled to amplifier 332's - input terminal, pin 13, configuring amplifier 332 as a unity gain buffer.
- Pin 14 of amplifier 332 forms the gauge 304's TEMPerature terminal.
- Amplifier 332 illustratively is one-fourth of a National Semiconductor type LMC6464AIM quad differential amplifier. Referring to Figs. 6a, 6b and 7e, +Vbat is supplied to the illustrated circuitry through a suitable switch 334, such as a Snaptron dome switch.
- gauge 304 can best be understood by referring to Figs. 6a-c, where the relative locations of fitting 306, LCD 310, driver 312, battery 313, pressure sensor 320 and switch 334 can be readily ascertained.
- Gauge 304 is configured to be reliable yet inexpensive in keeping with the philosophy that inner cannula 60 be rendered disposable.
- gauge 304 can be provided with a T-junction and conduit 30 and fitting 302 with appropriate complementary fittings, so that the T-junction can readily be disconnected from and reconnected into the conduit 30 between cuff 16 and fitting 302, should it be appropriate to retain the gauge 304 and dispose of the inner cannula 60. In such embodiments, gauge 304 could be reused as long as it remained operable.
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/691,924 US8707956B2 (en) | 2005-12-27 | 2012-12-03 | Endotracheal tube having outer and inner cannulae |
PCT/US2013/072237 WO2014088904A1 (en) | 2012-12-03 | 2013-11-27 | Endotracheal tube having outer and inner cannulae |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2925399A1 true EP2925399A1 (en) | 2015-10-07 |
EP2925399A4 EP2925399A4 (en) | 2016-05-25 |
Family
ID=50883889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13861469.8A Withdrawn EP2925399A4 (en) | 2012-12-03 | 2013-11-27 | Endotracheal tube having outer and inner cannulae |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP2925399A4 (en) |
JP (1) | JP6341929B2 (en) |
CN (1) | CN104902949A (en) |
AU (2) | AU2013201131B2 (en) |
BR (1) | BR112015012839A2 (en) |
CA (1) | CA2893377C (en) |
IL (1) | IL239090A0 (en) |
MX (1) | MX2015006882A (en) |
SA (1) | SA515360509B1 (en) |
WO (1) | WO2014088904A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017155999A1 (en) | 2016-03-07 | 2017-09-14 | Hansa Medical Products, Inc. | Apparatus and method for forming an opening in patient's tissue |
CN105727415A (en) * | 2016-05-06 | 2016-07-06 | 邹弘 | Multifunctional trachea cannula |
CN105999501A (en) * | 2016-06-15 | 2016-10-12 | 北京大学第三医院 | Replacement sleeve for trachea cannula and using method |
US11786683B2 (en) * | 2020-12-11 | 2023-10-17 | Blake J. Hyde | Irrigating intraluminal suction inner cannula system |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4617015A (en) * | 1984-08-10 | 1986-10-14 | Halkey-Roberts Corporation | Visual pressure indicator for endotracheal cuff |
US4637389A (en) * | 1985-04-08 | 1987-01-20 | Heyden Eugene L | Tubular device for intubation |
JPS628766A (en) * | 1985-07-03 | 1987-01-16 | 鳥取大学長 | Cuff pressure controller of gas insert tube with cuff |
US4852565A (en) * | 1988-03-22 | 1989-08-01 | Shiley Inc. | Fenestrated tracheostomy tube |
GB9026403D0 (en) * | 1990-12-05 | 1991-01-23 | Smiths Industries Plc | Pressure monitors |
JP3922739B2 (en) * | 1996-04-26 | 2007-05-30 | 積水化学工業株式会社 | Tracheostomy catheter |
EP1219317B1 (en) * | 2000-12-23 | 2006-06-07 | Smiths Group PLC | Tracheal tubes |
US7121280B2 (en) * | 2004-03-17 | 2006-10-17 | Cook Critical Care Incorporated | Medical devices and methods of selectively and alternately isolating bronchi or lungs |
US20080047562A1 (en) * | 2004-05-12 | 2008-02-28 | Nellcor Puritan Bennett Incorporated | Endotracheal Tube Having Improved Suction Lumen |
US7987851B2 (en) * | 2005-12-27 | 2011-08-02 | Hansa Medical Products, Inc. | Valved fenestrated tracheotomy tube having outer and inner cannulae |
US20080053454A1 (en) * | 2006-09-01 | 2008-03-06 | Nellcor Puritan Bennett Incorporated | Endotracheal tube including a partially inverted cuff collar |
WO2009132043A1 (en) * | 2008-04-22 | 2009-10-29 | Abnousi, Freddy | Endotracheal tube |
JP5753700B2 (en) * | 2010-02-24 | 2015-07-22 | 順 高野 | Cuff pressure control device and cuff pressure control method |
-
2013
- 2013-02-27 AU AU2013201131A patent/AU2013201131B2/en not_active Ceased
- 2013-11-27 BR BR112015012839A patent/BR112015012839A2/en active Search and Examination
- 2013-11-27 AU AU2013356367A patent/AU2013356367B2/en not_active Ceased
- 2013-11-27 CA CA2893377A patent/CA2893377C/en not_active Expired - Fee Related
- 2013-11-27 JP JP2015546517A patent/JP6341929B2/en not_active Expired - Fee Related
- 2013-11-27 CN CN201380069319.3A patent/CN104902949A/en active Pending
- 2013-11-27 MX MX2015006882A patent/MX2015006882A/en unknown
- 2013-11-27 WO PCT/US2013/072237 patent/WO2014088904A1/en active Application Filing
- 2013-11-27 EP EP13861469.8A patent/EP2925399A4/en not_active Withdrawn
-
2015
- 2015-05-31 IL IL239090A patent/IL239090A0/en unknown
- 2015-06-03 SA SA515360509A patent/SA515360509B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
JP6341929B2 (en) | 2018-06-13 |
AU2013201131A1 (en) | 2014-06-19 |
CA2893377C (en) | 2021-03-23 |
JP2015536761A (en) | 2015-12-24 |
CA2893377A1 (en) | 2014-06-12 |
IL239090A0 (en) | 2015-07-30 |
AU2013356367A1 (en) | 2015-06-18 |
SA515360509B1 (en) | 2018-08-29 |
WO2014088904A1 (en) | 2014-06-12 |
AU2013201131B2 (en) | 2015-02-19 |
AU2013356367B2 (en) | 2018-03-01 |
EP2925399A4 (en) | 2016-05-25 |
BR112015012839A2 (en) | 2017-07-11 |
MX2015006882A (en) | 2017-02-15 |
CN104902949A (en) | 2015-09-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8707956B2 (en) | Endotracheal tube having outer and inner cannulae | |
US8434488B2 (en) | Endotracheal tube with dedicated evacuation port | |
US8887730B2 (en) | Dual-lumen tracheal tube with assembly portion | |
AU2021250983B2 (en) | Systems and methods for treating an airway | |
CA2893377C (en) | Endotracheal tube having outer and inner cannulae | |
US20170165441A1 (en) | Endotracheal tube having outer and inner cannulae | |
US20140190487A1 (en) | Tracheal tube with pilot valve balloon guard | |
CN111939412B (en) | Airway management device with sight glass and monitoring function | |
US11684737B2 (en) | Endotracheal tube exchange | |
CN215135269U (en) | Flushing-sucking type double-air-bag tracheal cannula | |
CN212395567U (en) | Laryngeal mask device matched with endotracheal tube for transnasal intubation and auxiliary ventilation system | |
CN110732069A (en) | Trachea cannula capable of conducting esophagus drainage | |
CN214762577U (en) | High-flow pressure-control flushing device for retentate on artificial airway air bag | |
CN215231318U (en) | Multi-bag balloon trachea cannula catheter | |
EP0793520A2 (en) | Airway monitoring adapter and use thereof | |
CN111870788A (en) | Laryngeal mask device matched with endotracheal tube for transnasal intubation and auxiliary ventilation system | |
CN112263762A (en) | Visual multifunctional double-cavity bronchial cannula | |
WO2016149518A1 (en) | Endotracheal tube having outer and inner cannulae and method of use | |
CN112316267A (en) | Multifunctional visual single-cavity bronchial cannula | |
CN109091208A (en) | Bronchoscope imports casing | |
WO2015013379A1 (en) | Cuffed tracheal tube |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20150619 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
RA4 | Supplementary search report drawn up and despatched (corrected) |
Effective date: 20160425 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: A61M 16/08 20060101ALI20160419BHEP Ipc: A61M 16/04 20060101AFI20160419BHEP |
|
17Q | First examination report despatched |
Effective date: 20180712 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20200417 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20200828 |