WO2016149518A1 - Tube endotrachéal comprenant des canules interne et externe et méthode d'utilisation - Google Patents

Tube endotrachéal comprenant des canules interne et externe et méthode d'utilisation Download PDF

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Publication number
WO2016149518A1
WO2016149518A1 PCT/US2016/022912 US2016022912W WO2016149518A1 WO 2016149518 A1 WO2016149518 A1 WO 2016149518A1 US 2016022912 W US2016022912 W US 2016022912W WO 2016149518 A1 WO2016149518 A1 WO 2016149518A1
Authority
WO
WIPO (PCT)
Prior art keywords
longitudinal end
cannula
outer cannula
cuff
endotracheal tube
Prior art date
Application number
PCT/US2016/022912
Other languages
English (en)
Inventor
Eric D. Blom
Original Assignee
Hansa Medical Products, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hansa Medical Products, Inc. filed Critical Hansa Medical Products, Inc.
Publication of WO2016149518A1 publication Critical patent/WO2016149518A1/fr

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
    • A61M16/0402—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
    • 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
    • A61M16/0461—Nasoendotracheal 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
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6045—General characteristics of the apparatus with identification means having complementary physical shapes for indexing or registration purposes

Definitions

  • the present disclosure relates to endotracheal tubes such as, for example, orotracheal tubes and nasotracheal tubes.
  • a tracheal tube is typically a catheter that is inserted into the trachea for the purpose of providing an airway for a patient.
  • An endotracheal tube is a specific type of tracheal tube that is inserted through the mouth (orotracheal) or nose (nasotracheal).
  • Such endotracheal tubes are in contrast to a tracheostomy tube, which is inserted into a tracheostoma following a tracheostomy procedure, and a tracheal button, which may also be inserted into a puncture through the paratracheal skin into the trachea.
  • An endotracheal tube may be cuffed or uncuffed.
  • Cuffed endotracheal tubes include a cuff that can be inflated to minimize the passage of secretions from the upper respiratory tract downward into the lungs of a patient.
  • an endotracheal tube apparatus comprising an outer cannula having a first longitudinal end and a second longitudinal end.
  • the outer cannula has an outer surface that is devoid of openings between the first longitudinal end and the second longitudinal end.
  • the endotracheal tube also comprises an inner cannula sized to be selectively inserted into, and removed from, the outer cannula.
  • the inner cannula has a first longitudinal end, a second longitudinal end, and an outer surface that is devoid of openings between the first longitudinal end and the second longitudinal end.
  • the endotracheal tube apparatus may further comprise an inflatable cuff formed on the outer cannula between its first and second inflatable cuff formed on the outer cannula between its first and second inflatable cuff formed on the outer cannula between its first and second inflatable cuff formed on the outer cannula between its first and second inflatable cuff formed on the outer cannula between its first and second inflatable cuff formed on the outer cannula between its first and second
  • the endotracheal tube apparatus may further comprise a conduit extending from the cuff for introducing fluid into the cuff when it is desired to inflate the cuff and removing fluid from the cuff when it is desired to deflate the cuff.
  • the endotracheal tube apparatus may further comprise a first coupler provided on the second longitudinal end of the outer cannula and a second coupler provided on the second longitudinal end of the inner cannula.
  • One of the first and second couplers may be provided with at least one surface for guiding the inner cannula into the use orientation with respect to the outer cannula when the inner cannula is inserted into the outer cannula
  • the other of the first and second couplers may be provided with a cooperating surface for cooperating with the at least one surface for guiding the inner cannula into the use orientation with respect to the outer cannula.
  • a method of using an endotracheal tube apparatus comprises inserting an endotracheal tube orally or nasally into a trachea of a patient.
  • the endotracheal tube comprises an outer cannula having a first longitudinal end, a second longitudinal end, and an outer surface that is devoid of openings between the first longitudinal end and the second longitudinal end.
  • the method also comprises removing an inner cannula from the outer cannula.
  • the inner cannula has a first longitudinal end, a second longitudinal end, and an outer surface that is devoid of openings between the first longitudinal end and the second longitudinal end.
  • the method further comprises maintaining the outer cannula in the trachea of the patient and inserting the inner cannula into the outer cannula with the outer cannula in the trachea of the patient.
  • the method may further comprise inflating a cuff formed on the outer cannula.
  • an endotracheal tube apparatus includes an outer cannula having first and second longitudinal ends, an inner cannula sized to be selectively inserted into, and removed from, the outer cannula, an inflatable cuff formed on the outer cannula between the first and second longitudinal ends, and a conduit extending 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.
  • At least one of the outer cannula and inner cannula has a curved outer surface that is devoid of openings.
  • the inner cannula may have a first longitudinal end, a second longitudinal end, and the outer surface that is devoid of openings between the first longitudinal end and the second longitudinal end.
  • the outer cannula may have the outer surface that is devoid of openings between the first longitudinal end and the second longitudinal end.
  • Fig. l illustrates a perspective view of an endotracheal tube including inner and outer cannulae;
  • Fig. 2 is a longitudinal sectional side elevation view illustrating the endotracheal tube of Fig. 1 inserted into an upper airway of a patient.
  • the endotracheal tube apparatus is an orotracheal apparatus configured for insertion through a patient's mouth and into his or her trachea.
  • the endotracheal tube apparatus may be a nasotracheal apparatus configured for insertion through a patient's nose.
  • the apparatus 10 includes an outer cannula 12 and an inner cannula 14 sized to be selectively inserted into, and removed from, the outer cannula 12.
  • the cannulae 12, 14 are formed as components from polyvinyl chloride but may also be formed from silicone or other suitable biocompatible material(s).
  • the outer cannula 12 has a distal longitudinal end 16 and a proximal longitudinal end 18.
  • a passageway or lumen 20 extends through ports 22, 24 defined in the ends 16, 18, respectively.
  • the cannula 12 also has an outer surface 26 that extends between the ends 16, 18. As shown in FIG. 1, the outer surface 26 is devoid of any fenestrations or other openings.
  • an inflatable cuff 28 is provided on the outer surface 26 between the ends 16, 18. The cuff 28 is inflatable through a conduit 30 once the outer cannula 12 is in place in the trachea, as described in greater detail below.
  • the inner cannula 14 is sized to be inserted into the lumen 20 of the outer cannula 12.
  • the inner cannula 14 has a distal longitudinal end 36 and a proximal longitudinal end 38.
  • a passageway or lumen 40 extends through ports 42, 44 defined in the ends 36, 38, respectively.
  • the cannula 14 also has an outer surface 46 that extends between the ends 36, 38. As shown in FIG. 1, the outer surface 46 is devoid of any openings.
  • the inner cannula 14 may be coupled to a ventilator (not shown).
  • the inner cannula 14 is releasably fixed to an outer cannula 12 via an attachment mechanism 48.
  • the attachment mechanism 48 includes one or more (two in the illustrated embodiment) couplers or locking tabs 50 that are flexibly formed or mounted to the proximal longitudinal end 38 of the inner cannula 14.
  • the tabs 50 are provided with engaging surfaces 52.
  • the attachment mechanism 48 also includes a coupler 54 at the proximal longitudinal end 18 of the outer cannula 12.
  • the coupler 54 includes a notch 56 for receiving the portion of each tab 50 which extends beyond engaging surfaces 52 and portions 58 for capturing engaging surfaces 52. This configuration also promotes correct orientation of inner cannula 14 within outer cannula 12.
  • the endotracheal tube apparatus 10 is inserted through a patient's mouth 70, down the patient's pharynx 72, through the patient's glottis 74, and into the patient's trachea 76.
  • the port 24 at the proximal longitudinal end 18 of the outer cannula 12 is positioned outside the patient's mouth 70 during use and the port 22 at the distal longitudinal end 16 of the outer cannula 12 is positioned inside the trachea 76 below cuff 28 during use.
  • the cuff 28 is inflatable through a conduit 30 once the outer cannula 12 is in place in the trachea 76 to minimize the passage of secretions 80 from the upper respiratory tract downward into the patient's lungs.
  • secretions 80 pool above the cuff 28 (that is, on the side of the cuff 28 opposite the lungs) when the cuff 28 is inflated in place.
  • the inner cannula 14 may be removed from the outer cannula 12. It is contemplated that replacement of the inner cannula 14 may occur more frequently and with less difficulty and without much of the trauma that might attend
  • the inner cannula 14 typically can be relatively straightforwardly replaced by disconnecting it from the ventilator (if any), releasing the coupler(s) 50 and withdrawing the inner cannula 14 from the outer cannula 12.
  • the inner cannula 14 thus can be removed, disposed of if appropriate, and replaced with a fresh cannula 14 with relative ease.
  • the endotracheal tube apparatus 10 includes a conduit 30 that may be used to inflate the cuff 28. It should be appreciated that the conduit 30 may also be connected to a pressure gauge such as the gauge shown and described in U.S. Patent App. Pub. No. 2015/0258297, which is expressly incorporated herein by reference.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

La présente invention concerne un appareil à tube endotrachéal comprenant une canule externe présentant des première et seconde extrémités longitudinales et une canule interne amovible conçue pour être insérée dans la canule externe. La canule externe est dépourvue de perforations ou d'autres ouvertures entre les première et seconde extrémités longitudinales. La canule interne amovible est dépourvue de toute ouverture entre ses extrémités longitudinales. Un manchon gonflable peut être disposé sur la canule externe entre les première et seconde extrémités.
PCT/US2016/022912 2015-03-19 2016-03-17 Tube endotrachéal comprenant des canules interne et externe et méthode d'utilisation WO2016149518A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562135231P 2015-03-19 2015-03-19
US62/135,231 2015-03-19

Publications (1)

Publication Number Publication Date
WO2016149518A1 true WO2016149518A1 (fr) 2016-09-22

Family

ID=56919456

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/022912 WO2016149518A1 (fr) 2015-03-19 2016-03-17 Tube endotrachéal comprenant des canules interne et externe et méthode d'utilisation

Country Status (1)

Country Link
WO (1) WO2016149518A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659612A (en) * 1970-11-12 1972-05-02 Donald P Shiley Tracheostomy tube
US4033353A (en) * 1975-10-16 1977-07-05 International Paper Company Tracheostomy tube
US6105577A (en) * 1998-10-28 2000-08-22 Varner; Scott H. Advanced tracheostomy tube and oral endotracheal tube holder
US6135111A (en) * 1998-08-31 2000-10-24 Vital Signs Inc. Tracheostomy tube with removable inner cannula
US20130098358A1 (en) * 2005-12-27 2013-04-25 Hansa Medical Products, Inc. Endotracheal Tube Having Outer and Inner Cannulae
US20130269704A1 (en) * 2003-05-06 2013-10-17 Ralph Thomas Multiple cannula systems and methods
US8561605B2 (en) * 2007-04-11 2013-10-22 John J. Davis Atraumatic introducer for nasal endotracheal tubes and its method of use
WO2014132016A1 (fr) * 2013-02-28 2014-09-04 Smiths Medical International Limited Ensembles tube de trachéotomie à canule interne

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659612A (en) * 1970-11-12 1972-05-02 Donald P Shiley Tracheostomy tube
US4033353A (en) * 1975-10-16 1977-07-05 International Paper Company Tracheostomy tube
US6135111A (en) * 1998-08-31 2000-10-24 Vital Signs Inc. Tracheostomy tube with removable inner cannula
US6105577A (en) * 1998-10-28 2000-08-22 Varner; Scott H. Advanced tracheostomy tube and oral endotracheal tube holder
US20130269704A1 (en) * 2003-05-06 2013-10-17 Ralph Thomas Multiple cannula systems and methods
US20130098358A1 (en) * 2005-12-27 2013-04-25 Hansa Medical Products, Inc. Endotracheal Tube Having Outer and Inner Cannulae
US8561605B2 (en) * 2007-04-11 2013-10-22 John J. Davis Atraumatic introducer for nasal endotracheal tubes and its method of use
WO2014132016A1 (fr) * 2013-02-28 2014-09-04 Smiths Medical International Limited Ensembles tube de trachéotomie à canule interne

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