WO2010019118A1 - Voie aérienne orale - Google Patents

Voie aérienne orale Download PDF

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Publication number
WO2010019118A1
WO2010019118A1 PCT/US2008/009726 US2008009726W WO2010019118A1 WO 2010019118 A1 WO2010019118 A1 WO 2010019118A1 US 2008009726 W US2008009726 W US 2008009726W WO 2010019118 A1 WO2010019118 A1 WO 2010019118A1
Authority
WO
WIPO (PCT)
Prior art keywords
curved
section
oral airway
planar
patient
Prior art date
Application number
PCT/US2008/009726
Other languages
English (en)
Inventor
Myron L. Munn
Original Assignee
Munn Myron L
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 Munn Myron L filed Critical Munn Myron L
Priority to PCT/US2008/009726 priority Critical patent/WO2010019118A1/fr
Publication of WO2010019118A1 publication Critical patent/WO2010019118A1/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
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the 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
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049—Mouthpieces
    • A61M16/0493—Mouthpieces with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block
    • 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
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049—Mouthpieces
    • A61M16/0495—Mouthpieces with tongue depressors

Definitions

  • This invention relates to an oral airway and more particularly to an oral airway which truly represents an improvement in the oral airway art.
  • oral airways are used primarily for two reasons.
  • the first reason is that after intubation of the trachea, an oral airway is placed to prevent a patient from biting down on the endotracheal tube and thus occluding the endotracheal tube.
  • the second and primary reason for the use of an oral airway in the practice of aesthesia is to elevate the tongue against the floor of the mouth to create a larger opening in the mouth to facilitate the utilization of positive pressure ventilation using an anesthesia mask after a patient has been given medications to induce general anesthesia.
  • the drugs normally used to induce general anesthesia may greatly decrease or altogether stop the patient's own spontaneous respiratory effort. Therefore, the Anesthesia Practitioner must immediately begin assisting or controlling the patient's ventilation.
  • Anesthesia Practitioners are all taught the "tricks of the trade" in how to ventilate patients after induction of general anesthesia including a variety of physical adjustments to the anesthetized patient such as elevation of the jaw and extension of the patient's neck. If the patient cannot be adequately ventilated after induction of general anesthesia, life-threatening problems may develop such as hypoxia, hypercarbia, cardiac arrhythmias and even death.
  • the inventor has administered over 10,000 general anesthetics during 25 years of practicing anesthesia and has noted the increasing incidence of obesity in both the pediatric and adult population. These obese patients present an increased level of difficulty to the Anesthesia Practitioner in the area of airway management. Obese patients tend to have larger, thicker tongues along with more redundant soft tissue in the oropharyngeal area. Obese patients also tend to have thicker necks, so it is more difficult to hyperextend the neck and lift the jaw to facilitate adequate ventilation after general anesthesia is induced. In discussions with other Anesthesia Practitioners, the inventor has perceived a common concern that the oral airways currently available do not adequately address the growing problem of obesity in the population.
  • the Berman Oral Airway and later devices are available to the medical professional in a number of different sizes for use in all sizes of patients from premature infants to large adults.
  • each size constitutes a unitary member which may not itself be adjusted in size, shape, or contour.
  • conventional airways are substantially rigid structures which may not be altered in use to fit particular patients, particular problems, or unusual anatomic anomalies or structures.
  • the Berman Oral Airway has served Anesthesia Practitioners well for many years, but the physical characteristics of patients have changed since 1952 while the Berman Oral Airway remains the same.
  • the Berman Oral Airway comes in various sizes from 40 mm to 100 mm in incremental steps of 10 mm (i.e., 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, and 100 mm). These sizes are roughly correlated to general anatomic dimension described as the distance from the exterior of the front teeth to the back of the oropharynx. So, correspondingly, a 40 mm Berman Oral Airway is probably an appropriate size for a premature infant whereas a 100 mm Berman Oral Airway is probably appropriate for a large adult, and a 90 mm Berman Oral Airway is generally used on a medium adult patient.
  • the 90 mm oral airway may not adequately elevate the tongue because it is not wide enough side to side to provide enough support for the tongue.
  • a 100 mm Berman Oral Airway (which is wider side to side) may provide the additional support for the tongue that is needed to open the airway, but it cannot be used because the longer structure of the airway (100 mm) may not fit in the patient's mouth.
  • the 100 mm oral airway would extend too far outside of the patient's mouth, thus placing an anesthesia mask over the patient's face to obtain a good mask seal in order to ventilate the patient with positive pressure would be very difficult, if not impossible.
  • the present invention provides modifications to the Berman Oral Airway which will provide better elevation of the tongue against the floor of the mouth by way of: 1 ) a longer middle support distance which increases the distance the tongue is elevated against the floor of the mouth thus increasing the anterior- posterior dimension of the airway opening; 2) the greater width of the curved lower member of the curved section of the oral airway which will give better support to the tongue laterally, thus increasing the side to side dimension of the airway opening; and 3) the elevation of the lower curved member of the curved section of the airway into an inverted "V" shape which will also greatly increase the lateral support of the tongue.
  • the instant airway sizes would be interchangeable with the Berman Oral Airway sizes.
  • the 80 mm airway of this invention would be appropriate, but would give better tongue support and consequently a larger opening of the patient's airway to facilitate easier ventilation of the patient. This would be especially helpful in obese patients with large tongues, but would also be useful for all patients being administered general anesthesia.
  • the oral airway of this invention comprises a straight section having inner and outer ends adapted to fit between the patient's teeth and a curved section adapted to fit over the patient's tongue and extending to the oropharyngeal area.
  • the straight section of the oral airway includes a substantially planar upper member and a substantially planar lower member which are spaced-apart by a medial web extending therebetween.
  • the planar upper and lower members of the straight section have substantially the same widths.
  • the outer end of the planar upper member has a flange extending upwardly therefrom and the outer end of the planar lower member has a flange extending downwardly therefrom. The flanges externally overlie the lips of the patient.
  • the curved section of the airway comprises spaced-apart curved upper and lower members which are spaced-apart by a medial web extending therebetween.
  • the curved upper member of the curved section has substantially the same width as the planar upper member of the straight section.
  • the curved lower member of the curved section has a generally inverted V-shaped cross- section and has a greater width for substantially its entire length than the planar lower member of the straight section.
  • the distance between the curved upper and lower members of the curved section, at either side of the medial web is greater than the distance between the planar upper and lower members of the straight section for substantially the entire length thereof.
  • the oral airway of this invention may be either a 100 mm, 90 mm, 80 mm, 70 mm, 60 mm, 50 mm, or 40 mm size.
  • a further object of the invention is to provide an improved oral airway which will provide better elevation of the tongue against the floor of the mouth by way of: 1 ) a longer middle support distance which increases the distance the tongue is elevated against the floor of the mouth, thus increasing the anterior-posterior dimension of the airway opening; 2) the greater width of the curved lower member of the curved section of the oral airway which will give better support to the tongue laterally, thereby increasing the side to side dimension of the airway opening; and 3) the elevation of the lower curved member of the curved section of the airway into an inverted "V" shape which will also greatly increase the lateral support of the tongue.
  • Fig. 1 is a bottom perspective view of the oral airway of this invention
  • Fig. 2 is a side sectional view of the oral airway of this invention inserted into the patient's mouth;
  • Fig. 3 is a bottom elevational view of the airway of Fig. 1 ;
  • Fig. 4 is a top view of the oral airway of Fig. 1 ;
  • Fig. 5 is a side view of the oral airway of Fig. 1 ;
  • Fig. 6 is a sectional view as seen on lines 6-6 of Fig. 5;
  • Fig. 7 is a sectional view as seen on lines 7-7 of Fig. 5.
  • Airway 12 refers generally to the preferred embodiment of this invention.
  • Airway 12 includes a straight section 14 having an upper planar member 16 and a lower planar member 18 which are spaced-apart by means of a medial web or rib 20.
  • Flange 22 extends upwardly from the outer end of planar upper member 16 while flange 24 extends downwardly from the outer end of planar lower member 18.
  • the flanges 22 and 24 externally overlie the lips of the patient as illustrated generally in Fig. 2.
  • Airway 12 also includes a curved section 26 which is comprised of a curved upper member 28 and a curved lower member 30 which are spaced-apart by a continuation of the medial web 20 and which is designated by the reference numeral 2OA.
  • the curved lower member 30 has a generally inverted "V" shape.
  • the width of upper member 28 is substantially the same as the width of the planar upper member 16.
  • the width of the inverted V-shaped curved lower member 30 is greater than the width of planar lower member 18.
  • the members 28 and 30, at their juncture with the medial web 2OA are spaced-apart at a greater distance than the distance between members 16 and 18.
  • Fig. 6 illustrates a cross-sectional view of the straight section 14 of the oral airway 12 wherein it can be seen that the width Wi of the flange 24 is less than the width of the member 30.
  • Fig. 6 also illustrates as Ti the distance or spacing between members 16 and 18 of straight section 14.
  • the present invention provides modifications to the Berman Oral Airway which will provide better elevation to the tongue against the floor of the mouth by way of: 1 ) a longer middle support distance which increases the distance the tongue is elevated against the floor of the mouth thus increasing the anterior- posterior dimension of the airway opening; 2) the greater width of the lower member 30 which will give better support to the tongue laterally, thus increasing the side to side dimension of the airway opening; and (3) the elevation of the lower curved member of the curved section of the airway into an inverted "V" shape which will also greatly increase the lateral support of the tongue.
  • the size of the oral airway of this invention would be interchangeable with the Berman Oral Airway sizes.
  • the 80 mm airway of this invention would be appropriate, but would give better tongue support and consequently a larger opening of the patient's airway to facilitate easier ventilation of the patient. This would be especially helpful in obese patients with large tongues, but would also be useful for all patients being administered general anesthesia.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Otolaryngology (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)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L'invention concerne une voie aérienne orale pour permettre le passage d'air vers la trachée d'un patient. La voie aérienne orale comprend une section incurvée et une section droite, la section incurvée comportant un élément supérieur et un élément inférieur incurvés séparés et la section droite comportant un élément supérieur et un élément inférieur plans séparés de même largeur. L'élément supérieur incurvé a la même largeur que l'élément supérieur plan, et l'élément inférieur incurvé est plus large que l'élément inférieur plan. L'élément inférieur incurvé est plus large que l'élément inférieur plan et la distance qui sépare les éléments supérieur et inférieur incurvés est supérieure à la distance qui sépare les éléments supérieur et inférieur plans. L'élément inférieur incurvé a une section transversale de forme générale en V inversé.
PCT/US2008/009726 2008-08-14 2008-08-14 Voie aérienne orale WO2010019118A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2008/009726 WO2010019118A1 (fr) 2008-08-14 2008-08-14 Voie aérienne orale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2008/009726 WO2010019118A1 (fr) 2008-08-14 2008-08-14 Voie aérienne orale

Publications (1)

Publication Number Publication Date
WO2010019118A1 true WO2010019118A1 (fr) 2010-02-18

Family

ID=41669097

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/009726 WO2010019118A1 (fr) 2008-08-14 2008-08-14 Voie aérienne orale

Country Status (1)

Country Link
WO (1) WO2010019118A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2539005A4 (fr) * 2010-02-22 2015-12-23 Merit Medical Systems Inc Pièce buccale et procédés d'utilisation de celui-ci
WO2020256547A1 (fr) 2019-06-21 2020-12-24 Stichting Katholieke Universiteit Dispositif de canule oropharyngée

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080185004A1 (en) * 2006-10-23 2008-08-07 Munn Myron L Oral airway

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080185004A1 (en) * 2006-10-23 2008-08-07 Munn Myron L Oral airway

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2539005A4 (fr) * 2010-02-22 2015-12-23 Merit Medical Systems Inc Pièce buccale et procédés d'utilisation de celui-ci
WO2020256547A1 (fr) 2019-06-21 2020-12-24 Stichting Katholieke Universiteit Dispositif de canule oropharyngée
NL2023355B1 (en) * 2019-06-21 2021-02-01 Stichting Katholieke Univ Oropharyngeal airway device

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