WO2020008161A1 - Tubes trachéaux, ensembles et procédés - Google Patents

Tubes trachéaux, ensembles et procédés Download PDF

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Publication number
WO2020008161A1
WO2020008161A1 PCT/GB2019/000089 GB2019000089W WO2020008161A1 WO 2020008161 A1 WO2020008161 A1 WO 2020008161A1 GB 2019000089 W GB2019000089 W GB 2019000089W WO 2020008161 A1 WO2020008161 A1 WO 2020008161A1
Authority
WO
WIPO (PCT)
Prior art keywords
expulsion
chamber
expulsion chamber
tube
cuff
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.)
Ceased
Application number
PCT/GB2019/000089
Other languages
English (en)
Inventor
Jerry Edward CABRERA
Mark Henry Faust
Christopher Allen Lacy
Thomas J. WORTHAM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smiths Medical International Ltd
Original Assignee
Smiths Medical International Ltd
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 Smiths Medical International Ltd filed Critical Smiths Medical International Ltd
Publication of WO2020008161A1 publication Critical patent/WO2020008161A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • A61M16/0465—Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters
    • 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
    • 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
    • A61M16/0057—Pumps therefor
    • A61M16/0084—Pumps therefor self-reinflatable by elasticity, e.g. resuscitation squeeze bags
    • 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
    • A61M16/0445—Special cuff forms, e.g. undulated
    • 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
    • A61M16/0463—Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
    • 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
    • A61M2207/00—Methods of manufacture, assembly or production

Definitions

  • This invention relates to tracheal tubes of the kind having sealing means on its outer surface towards its patient end adapted to form a seal with the wall of a trachea.
  • Tracheal tubes are used to enable ventilation, respiration or spontaneous breathing of a patient. Endotracheal tubes are inserted via the mouth or nose so that one end locates in the trachea and the other end locates outside the patient. Tracheostomy tubes are inserted into the trachea via a surgically-formed opening in the neck. It is common practice for such tubes to include a sealing member close to the patient end of the tube that forms a seal between the outside of the tube and the tracheal wall. In this way gas flow into the lungs is confined along the bore of the tube and cannot flow between the outside of the tube and the trachea.
  • the sealing member is in the form of a hollow annular cuff that can be inflated and deflated via a small bore inflation line opening into the interior of the cuff and extending rearwardly towards the machine end of the tube where it can be connected with a syringe or the like to supply air or liquid via the inflation line to or from the inside of the cuff.
  • secretions can collect above the cuff between the tube and the wall of the trachea. These secretions can provide a site for bacterial growth. It is important, therefore, to minimise the amount of secretions that leak past the cuff during use such as by special design of the cuff shape and material and by control of the cuff inflation pressure. It is also important to minimize the amount of secretions released into the trachea when the cuff is deflated prior to removing the tube from the trachea.
  • Cuffed tubes are available with a suction channel opening above the cuff to enable secretions to be periodically removed, such as described in US4607635 which describes a tracheal tube having a channel open at various locations along its length and through which a suction catheter can be inserted to remove secretions at any desired location above the cuff.
  • US4305392 describes a tracheal tube with a bulbous chamber above the cuff in which secretions are collected for removal through a suction lumen extending through the wall of the tube.
  • US4840173 describes a catheter having a suction tube projecting over the proximal collar of the cuff to increase the amount of secretions that can be collected.
  • GB2250440 describes a tube where the upper end of the cuff is everted within the cuff so that it does not provide any obstruction to locating a suction opening as close as possible to the cuff.
  • JP-A- 10005340 describes a tube with two suction lumens linked by a gutter where they open on the side of the tube.
  • US6796309 describes a tracheal tube with a gutter extending around the tube from the suction opening.
  • US5819723 describes a tracheal tube with suctioning above the cuff and with an irrigating lumen that opens on the outside wall of the tube to deliver liquid above the cuff to help loosen the secretions for suctioning.
  • US2018/0296782 describes a tube with two sealing cuffs separated from one another by a cavity from which fluid can be aspirated via a lumen opening into the cavity.
  • a tracheal tube of the above-specified kind characterised in that the tube includes an expulsion chamber adjacent with the machine end of the sealing means, that the expulsion chamber has a plurality of openings around the tube facing away from its patient end, and that the assembly includes an expulsion conduit opening at one end into the expulsion chamber and arranged at its opposite end for connection with a source of expulsion fluid so that expulsion fluid can be delivered rapidly to the expulsion chamber while the sealing means maintains a seal with the trachea on the patient side of the expulsion chamber such that the expulsion fluid flows into the expulsion chamber and out through die openings causing secretions above the expulsion chamber to be displaced away from the patient end of the tube.
  • the sealing means preferably includes an inflatable sealing means.
  • the expulsion chamber may be attached with a machine end of the sealing means.
  • the sealing means and expulsion chamber may be moulded together as a one-piece, unitary construction.
  • a method of manufacturing a tracheal tube including the steps of providing a shaft for the tube, moulding a one-piece unitary moulding having a sealing cuff and an expulsion chamber arranged coaxially of one another and joined with one another by a tubular extension, the expulsion chamber having a plurality of expulsion openings arranged around its machine end face, and displacing the expulsion chamber and sealing cuff towards one another such that the tubular extension extends into the interior of the expulsion chamber and the expulsion chamber contacts the machine end surface of the sealing cuff.
  • the method may include the step of bonding the expulsion chamber with the machine end surface of the sealing cuff.
  • the moulding is preferably assembled on the shaft before bonding the expulsion chamber with the sealing cuff.
  • a tracheal tube made by a method according to the above other aspect of the present invention.
  • the source of expulsion fluid is preferably a self-inflatable resuscitation bag.
  • Figure 1 is a side elevation view of a first form of the tracheal assembly in use
  • Figure 2 is a side elevation view of the first form of assembly
  • Figure 2A is an enlarged, cut-away, perspective view showing the expulsion chamber in more detail; 5
  • Figure 3 is a side elevation view of a moulding used in a second form of
  • Figure 4 is a side elevation view of a part of the moulding of Figure 3 to an enlarged scale
  • Figure 5 is a side elevation sectional view of the moulding of Figures 3 and 4 assembled on the shaft of a tracheal tube at a preliminary stage of manufacture;
  • Figure 6 is a partly cut away perspective view of the assembly of Figure 5;
  • Figure 7 is a side elevation view of a part of the assembly at a subsequent stage of manufacture
  • Figure 8 is a side elevation view of the part of the assembly at the final stage of manufacture, omitting the tube; and Figure 9 is a side elevation view of the part shown in Figure 8 assembled on a tube.
  • FIG. 1 With reference first to Figure 1 there is shown a first form of a tracheostomy tube assembly having a curved shaft 1 with a patient end 2 for location in the trachea T and a machine end 3 that projects through a tracheostomy stoma on the neck surface.
  • the tracheostomy tube assembly also includes a sealing cuff 4 close to its patient end 2 and an expulsion chamber 5 bonded to the machine side of the cuff.
  • the sealing cuff 4 close to its patient end 2 and an expulsion chamber 5 bonded to the machine side of the cuff.
  • the expulsion chamber 5 is described in detail later, its interior being in communication with an expulsion fluid line 9 of a larger internal diameter than the cuff inflation line 7 and extending externally along the shaft 1. At its machine end the expulsion fluid line 9 is terminated by a 15 mm male connector 10 adapted to receive a mating female coupling 11 on a conventional self-inflating resuscitation bag 12.
  • the expulsion chamber 5 has a ring of several (typically around eight) expulsion openings or ports 13 spaced from one another around the shaft 1 and facing upwardly, that is, away from the patient end, outwardly of the respiratory passages and generally parallel with the axis of the shaft.
  • expulsion openings or ports 13 spaced from one another around the shaft 1 and facing upwardly, that is, away from the patient end, outwardly of the respiratory passages and generally parallel with the axis of the shaft.
  • the expulsion process simulates a cough.
  • the secretions driven up the trachea“T” may be removed by the patient swallowing or spitting into a bowl. Alternatively, if the patient is unable to do this himself the secretions may be removed by a clinician immediately following expulsion using a Yankauer or similar suction tube inserted through the mouth and into the pharynx.
  • the construction of the expulsion chamber 5 is shown more clearly in Figures 2 and 2 A. Opposite ends 41 and 42 of the sealing cuff 4 both have a domed, almost hemispherical shape.
  • the expulsion chamber 5 is formed by a flexible domed cap 50 enclosing the upper, machine end 42 of the sealing cuff 4 and sealed around its lower, patient end edge 51 with the outside of the sealing cuff at the boundary between its upper domed end 42 and its cylindrical central portion 43.
  • the upper, machine end of the cap 50 is formed into a cylindrical collar 52 bonded onto the outside of the machine end collar 44 of the sealing cuff 4.
  • the expulsion ports 13 are formed in the domed cap 50.
  • the cap 50 and machine end 42 of the sealing cuff 4 form between them a thin, tapering, domed shell-like expulsion chamber 5 with a relatively small volume compared with that of the sealing cuff 4 and compared with the volume of the resuscitation bag 12.
  • This arrangement enables secretions to be removed without the need to interrupt the seal between the tube and the trachea.
  • FIG. 3 to 9 An alternative, second form of assembly is shown in Figures 3 to 9 where the sealing cuff and expulsion chamber are formed as a one-piece, unitary silicone moulding 60.
  • Figures 3 and 4 show this moulding 60 before further assembly operations, that is, before it is assembled on a shaft 81.
  • the moulding 60 comprises a relatively large volume sealing cuff 61 having a domed lower or patient end 62 that continues as a patient end collar 63.
  • the upper end 64 of the cuff 61 is substantially flat with a slight concave dished machine end surface 65. Centrally of the surface 65 the moulding continues as a short tubular extension 66 of approximately the same diameter as the collar 63.
  • the upper end of the extension 66 continues as a radially-enlarged dish-shape formation 67, which provides the eventual expulsion chamber and is arranged coaxially of the sealing cuff 61.
  • the formation 67 has a circular section with a tapered base portion 68, an outwardly flared side wall 69 and an inwardly tapered upper or machine end face 70 formed with a series of several expulsion openings or ports 71 around its circumference.
  • Centrally of the upper face 70 extends an axial tapered sleeve 72 that is terminated by a cylindrical collar portion 73.
  • the moulding 60 in the form described above is slid on to the patient end 80 of the tracheostomy tube shaft 81 with the patient end collar 63 spaced a short distance from the patient end of the shaft, as shown in Figures 5 and 6.
  • the shaft 81 is preferably coated with an adhesive or solvent along its patient end to help lubricate sliding the moulding 60 into the correct position and to form an eventual bond and seal between the outside of the shaft and the moulding.
  • the next step is to apply a layer of a silicone adhesive to the upper dished surface 65 on the sealing cuff 61.
  • the upper, machine end of the moulding 60 is slid down in the direction of the patient end 80 of the shaft 81.
  • tubular extension 66 pushes up the tapered base portion 68 so that it snaps from having a concave shape (when viewed from above) to a convex shape. Further displacement of the upper end of the moulding 60 flattens the side wall 69 against the upper surface 65 of the sealing cuff 61 and against the adhesive on that surface, as shown in Figure 8. When fully displaced, the upper end of the tubular extension 66 contacts the inside of the tapered sleeve 72, the upper face 70 of the formation 67 lying substantially flat and closely spaced from the lower part of the formation now in contact with the upper surface 65 of the sealing cuff 61.
  • a small interior volume or expulsion chamber 75 is defined between the inner surfaces of the upper face 70, the upper surface of the base of the formation 67 adhered to the upper face of the sealing cuff and externally of the outer surface of the tubular extension 66.
  • the ports 71 are arranged to face upwardly, towards the machine end of the shaft 81, so that the expulsion jets are directed parallel to the axis of the shaft 81, thereby blowing any secretions collected on the upper machine end of the sealing cuff 61 rearwardly up the trachea.
  • expulsion fluid could be used in place of a self-inflating resuscitation bag, such as, for example, a large volume syringe or a source of compressed gas.
  • a gas as the expulsion fluid it would be possible to use a liquid, providing provision was made to remove the liquid from the trachea.
  • the invention is not confined to tracheostomy tubes but could be used with other cuffed tracheal tubes, such as endotracheal tubes.

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  • 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)
  • Surgical Instruments (AREA)

Abstract

La présente invention concerne un tube trachéal ayant un manchon d'étanchéité (4, 61) avec une chambre d'expulsion (5, 75) au niveau de son extrémité de machine. La chambre d'expulsion a un volume relativement petit et comporte un anneau de petites ouvertures (13, 71) autour de son extrémité supérieure. Un conduit (9, 79) relie la chambre d'expulsion (5, 75) à un ballon de réanimation (12) de telle sorte qu'un grand volume d'air rapide peut être fourni à la chambre, créant ainsi des jets d'air dirigés vers le haut à travers les ouvertures (13, 71) autour de son extrémité supérieure pour souffler des sécrétions vers le haut de la trachée.
PCT/GB2019/000089 2018-07-04 2019-06-21 Tubes trachéaux, ensembles et procédés Ceased WO2020008161A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1810952.0A GB201810952D0 (en) 2018-07-04 2018-07-04 Tracheal tubes, assemblies and methods
GB1810952.0 2018-07-04

Publications (1)

Publication Number Publication Date
WO2020008161A1 true WO2020008161A1 (fr) 2020-01-09

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Family Applications (1)

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PCT/GB2019/000089 Ceased WO2020008161A1 (fr) 2018-07-04 2019-06-21 Tubes trachéaux, ensembles et procédés

Country Status (2)

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GB (1) GB201810952D0 (fr)
WO (1) WO2020008161A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024510018A (ja) * 2021-03-16 2024-03-05 スミスズ メディカル インターナショナル リミテッド 医療外科用チューブ

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173418A (en) * 1961-01-10 1965-03-16 Ostap E Baran Double-wall endotracheal cuff
GB1040425A (en) * 1962-12-26 1966-08-24 Raymond Pesty Improvements in or relating to surgical devices for use in tracheotomy
US4305392A (en) 1978-09-29 1981-12-15 Chester Martin H Endotracheal tube with suction device
US4327721A (en) * 1978-07-07 1982-05-04 George Hanover Endotracheal tube with topical agent delivery system and method of using the same
US4607635A (en) 1984-09-27 1986-08-26 Heyden Eugene L Apparatus for intubation
US4840173A (en) 1988-02-22 1989-06-20 Porter Iii John W Endotracheal tube combination
GB2250440A (en) 1990-12-05 1992-06-10 Smiths Industries Plc Medico-surgical tube with folded-back cuff
US5501215A (en) * 1995-05-16 1996-03-26 Huerta; Christine M. Ventilation tube with evacuation sheath
US5544648A (en) 1995-05-12 1996-08-13 Cook Incorporated Device for intratracheal ventilation and intratracheal pulmonary ventilation including reverse venturi
JPH105340A (ja) 1996-06-19 1998-01-13 Nippon Sherwood Kk カフ上部吸引ルーメン付気管切開チューブ
US5819723A (en) 1994-03-02 1998-10-13 Thomas Jefferson University Methods and apparatus for reducing tracheal infection
GB2335362A (en) * 1998-03-18 1999-09-22 Smiths Industries Plc Cuffed medico-surgical tube
US6796309B2 (en) 2000-12-23 2004-09-28 Smith Group Plc Tracheal tubes
US20080053454A1 (en) * 2006-09-01 2008-03-06 Nellcor Puritan Bennett Incorporated Endotracheal tube including a partially inverted cuff collar
WO2012052908A1 (fr) * 2010-10-18 2012-04-26 Etview Ltd. Tube trachéal
WO2016189427A1 (fr) * 2015-05-25 2016-12-01 Universita' Degli Studi Di Milano-Bicocca Appareil permettant de commander la pression dans un ballonnet endotrachéal, ventilateur à pression positive pour ventilation artificielle d'un patient intubé et procédé de gestion des sécrétions chez un patient intubé
US20180296782A1 (en) 2017-04-13 2018-10-18 Daniel Marcos Chapiro Intubation Device with Variable Backflow Pressure

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173418A (en) * 1961-01-10 1965-03-16 Ostap E Baran Double-wall endotracheal cuff
GB1040425A (en) * 1962-12-26 1966-08-24 Raymond Pesty Improvements in or relating to surgical devices for use in tracheotomy
US4327721A (en) * 1978-07-07 1982-05-04 George Hanover Endotracheal tube with topical agent delivery system and method of using the same
US4305392A (en) 1978-09-29 1981-12-15 Chester Martin H Endotracheal tube with suction device
US4607635A (en) 1984-09-27 1986-08-26 Heyden Eugene L Apparatus for intubation
US4840173A (en) 1988-02-22 1989-06-20 Porter Iii John W Endotracheal tube combination
GB2250440A (en) 1990-12-05 1992-06-10 Smiths Industries Plc Medico-surgical tube with folded-back cuff
US5819723A (en) 1994-03-02 1998-10-13 Thomas Jefferson University Methods and apparatus for reducing tracheal infection
US5544648A (en) 1995-05-12 1996-08-13 Cook Incorporated Device for intratracheal ventilation and intratracheal pulmonary ventilation including reverse venturi
US5501215A (en) * 1995-05-16 1996-03-26 Huerta; Christine M. Ventilation tube with evacuation sheath
JPH105340A (ja) 1996-06-19 1998-01-13 Nippon Sherwood Kk カフ上部吸引ルーメン付気管切開チューブ
GB2335362A (en) * 1998-03-18 1999-09-22 Smiths Industries Plc Cuffed medico-surgical tube
US6796309B2 (en) 2000-12-23 2004-09-28 Smith Group Plc Tracheal tubes
US20080053454A1 (en) * 2006-09-01 2008-03-06 Nellcor Puritan Bennett Incorporated Endotracheal tube including a partially inverted cuff collar
WO2012052908A1 (fr) * 2010-10-18 2012-04-26 Etview Ltd. Tube trachéal
WO2016189427A1 (fr) * 2015-05-25 2016-12-01 Universita' Degli Studi Di Milano-Bicocca Appareil permettant de commander la pression dans un ballonnet endotrachéal, ventilateur à pression positive pour ventilation artificielle d'un patient intubé et procédé de gestion des sécrétions chez un patient intubé
US20180296782A1 (en) 2017-04-13 2018-10-18 Daniel Marcos Chapiro Intubation Device with Variable Backflow Pressure

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JIE LI ET AL.: "Evaluation of the Safety and Effectiveness of the Rapid Flow Expulsion Maneuver to Clear Subglottic Secretions in Vitro and Vivo", RESPIRATORY CARE, 4 April 2017 (2017-04-04)
JIE LI ET AL: "Evaluation of the Safety and Effectiveness of the Rapid Flow Expulsion Maneuver to Clear Subglottic Secretions in Vitro and in Vivo", RESPIRATORY CARE, vol. 62, no. 8, 4 April 2017 (2017-04-04), US, pages 1007 - 1013, XP055617541, ISSN: 0020-1324, DOI: 10.4187/respcare.05348 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024510018A (ja) * 2021-03-16 2024-03-05 スミスズ メディカル インターナショナル リミテッド 医療外科用チューブ
JP7771490B2 (ja) 2021-03-16 2025-11-18 アイシーユー メディカル インターナショナル リミテッド 医療外科用チューブ

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