WO2019159190A1 - Flexi-traq. - Google Patents

Flexi-traq. Download PDF

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Publication number
WO2019159190A1
WO2019159190A1 PCT/IN2018/050388 IN2018050388W WO2019159190A1 WO 2019159190 A1 WO2019159190 A1 WO 2019159190A1 IN 2018050388 W IN2018050388 W IN 2018050388W WO 2019159190 A1 WO2019159190 A1 WO 2019159190A1
Authority
WO
WIPO (PCT)
Prior art keywords
laryngoscope
flexible tip
set forth
distal flexible
modified
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/IN2018/050388
Other languages
English (en)
Inventor
Nirav KOTAK
Atul WALZADE
Ashish PATYAL
Rajendra Patel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2019159190A1 publication Critical patent/WO2019159190A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/267—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00091—Nozzles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/015—Control of fluid supply or evacuation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
    • A61B1/126—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for cleaning in-use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
    • A61B1/127—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements with means for preventing fogging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
    • A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
    • A61B90/16—Bite blocks

Definitions

  • This invention relates to a modified laryngoscope which is characterized by distal flexible tip with real time vision along with suction and oxygen port.
  • orotracheal tube_ generally designates an endotracheal tube that is inserted through the mouth.
  • Orotracheal intubation consists in inserting a tube through the mouth, the laryngeal inlet and into the trachea of a patient. This procedure is commonly performed in medical conditions in patients who are unable to protect their airways, are at risk of pulmonary aspiration and those that require assistance with mechanical ventilation. It is also commonly performed to permit safe general anaesthesia to enable mechanical ventilation during surgery.
  • a laryngoscope assists with intubation by allowing the clinician to visualise the path of the endotracheal tube as it passes through the glottis towards the trachea.
  • T racheal intubation can be performed by direct laryngoscopy or indirect laryngoscopy.
  • direct laryngoscopy a laryngoscope is used to obtain a direct view of the vocal cords.
  • An orotracheal tube is inserted under direct vision through the vocal cords normally in an unconscious patient.
  • a laryngoscope typically comprises a handle and a blade. There are many types of laryngoscopes designed for direct laryngoscopy.
  • the blade may be curved (e.g. the Macintosh blade), straight (e.g. the Miller blade) or may comprise a moveable hinged blade tip
  • the technique of orotracheal intubation begins with the blade inserted into the right corner of the patient s mouth.
  • the blade is shaped such that a flange will push the tongue to the left side of the oropharynx to create space in the oropharynx through which a view of the larynx will be sought.
  • the epiglottis is visualised.
  • the laryngoscope handle is manipulated so that the blade lifts the epiglottis directly with the straightblade or indirectly with the curved blade thereby exposing the laryngeal inlet in normal patients.
  • the endotracheal tube is then advanced past the vocal cords into the trachea.
  • intubations are straightforward using the direct laryngoscopy procedure described above. However some patientsare known to be difficult to intubate under direct laryngoscopy, especially if there are anatomical abnormalities or if the larynx lies particularly anteriorly. Other patients are unexpectedly found during direct laryngoscopy to be difficult to intubate this way. Intubation of these patients may be more successful using indirect laryngoscopy. This can be performed using a videolaryngoscope such as those sold under the trademarks Airtraq and G lideS cope. These videolaryngoscopes have a light source and imaging modality embedded in or inserted near to the distal portion of the blade.
  • the blade is shaped such that with manipulation the imaging modality can be positioned adjacent to the larynx. This enables visualization of the laryngeal inlet on a viewer or screen. Fibreoptic intubating laryngoscopes are also used for intubation, particularly if direct laryngoscopy is judged to be difficult or dangerous.
  • the tip can be visualised on the screen as it passes through the larynx. It is common however with videolaryngoscopes for a good laryngoscopic view on the screen to be achieved but for the user to have difficulty directing the endotracheal tube into the laryngeal inlet. Most problematic is the endotracheal tube tip directing too posteriorly. A stiff introducer or bougie can be inserted into the endotracheal tube to try to overcome this difficulty but this adds complexity and risk to the procedure.
  • S ome videolaryngoscopes for example the Airtraq ⁇
  • a disadvantage of these rigid open sided channels is that the endotracheal tube is not placed with a technique similar to direct laryngoscopy which is familiar to all anesthesiologists.
  • Another disadvantage is that depending upon tube diameter used, the tube tip is not always gripped sufficiently to direct it along the blade in a sufficiently anterior direction.
  • the rigidity of the guiding channel can impede the removal of the laryngoscope over the endotracheal tube when intubation has been achieved and the laryngoscope needs to be removed.
  • fibreoptic for intubation also have many disadvantages . F irstly they are very costly and not easily available in all hospitals. Also its use requires a long learning curve. S ince it is made up fibreoptic bundles which are very fine and any break in the bundle due to biting by the patient teeth during the procedure can damage it. While intubation fibreoptic passes through either oral cavity or nasal cavity which are the most unsterile areas so in this way we transmit infection to the lungs A DVA NTAG E S OF THIS INV E NTIO N :
  • the flexible tip is incorporated with HD camera with antifogging mechanism which helps in situation where the laryngeal inlet is either anterior or posterior so by just adjusting the tip we can have a clearer vision of the laryngeal inlet and better alignment for the passage of the tube.
  • the flexible tip is also incorporated with suction and oxygen channel .
  • S uction channel helps in aspirating any secretions in the form of blood, saliva, or gastric content, hindering the camera view, while the oxygen channel provides continuous source of oxygen during the intubation procedure .
  • Bite block present at the proximal end of the modified laryngoscope helps in preventing the instrument getting damaged due to biting.
  • the modified laryngoscope doesnot require lifting of epiglottis hence no hyperdynamic response therefore best in patients with hypertension or heart disease .
  • the main object of this invention is to give a modified laryngoscope for intubation which can be used in all airways especially difficult airway
  • F igure 1 is a longitudinal section (left sided view) of the modified laryngoscope. It shows the different component of the apparatus which consists of scope body(1 ), flexible tip(2), H D camera with light source with antifogging(3), suction / oxygen dual port(4), hinge (5), tip deflector/ spring button (6).
  • F igure 2 is also a longitudinal section (right sided and superior view) of the modified laryngoscope. It shows different component of the apparatus which consists up of scope body(1 ), endotracheal tube inlet(7), distal flexible tip(2) .
  • F igure 3 is the front view of the device showing scope body(1 ), flexible tip(2), HD camera with light source with antifogging(3), suction / oxygen dual port(4), endotracheal tube inlet(7).
  • F igure 4 is the superior aspect of the device showing scope body(1 ), flexible tip(2), suction / oxygen dual port(4), endotracheal tube inlet(7), hinge (5), tip deflector/ spring button(6).

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Optics & Photonics (AREA)
  • Neurosurgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Otolaryngology (AREA)
  • Physiology (AREA)
  • Pulmonology (AREA)
  • Endoscopes (AREA)

Abstract

La présente invention concerne un laryngoscope modifié économique alternatif pour une intubation dans toutes les situations de voies respiratoires difficiles, ayant pour avantage ajouté sa pointe souple distale en plus d'une vision en temps réel et d'un canal d'aspiration et d'oxygène. Le laryngoscope de la présente invention comporte un corps d'observation (1), une pointe souple distale (2), une caméra HD dotée de propriétés antibuée (3), un canal d'aspiration/oxygène et une entrée (4), une charnière (5) et un bouton de déflecteur/ressort de pointe (6). Ainsi, il aide à l'intubation dans n'importe quelle situation de voies respiratoires difficile dans laquelle l'utilisation habituelle d'un autre laryngoscope n'est pas possible, tout en maintenant la stérilité de la sonde endotrachéale. Beaucoup d'autres avantages de l'invention apparaîtront à la lecture de la description qui suit conjointement avec les dessins d'accompagnement.
PCT/IN2018/050388 2018-02-16 2018-06-13 Flexi-traq. Ceased WO2019159190A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201821005964 2018-02-16
IN201821005964 2018-02-16

Publications (1)

Publication Number Publication Date
WO2019159190A1 true WO2019159190A1 (fr) 2019-08-22

Family

ID=67619786

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2018/050388 Ceased WO2019159190A1 (fr) 2018-02-16 2018-06-13 Flexi-traq.

Country Status (1)

Country Link
WO (1) WO2019159190A1 (fr)

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