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WO2020029481A1 - Sonde oropharyngée - Google Patents

Sonde oropharyngée Download PDF

Info

Publication number
WO2020029481A1
WO2020029481A1 PCT/CN2018/118207 CN2018118207W WO2020029481A1 WO 2020029481 A1 WO2020029481 A1 WO 2020029481A1 CN 2018118207 W CN2018118207 W CN 2018118207W WO 2020029481 A1 WO2020029481 A1 WO 2020029481A1
Authority
WO
WIPO (PCT)
Prior art keywords
curved surface
wall
airway
surface part
oropharyngeal airway
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/CN2018/118207
Other languages
English (en)
Chinese (zh)
Inventor
黄长盛
焦晶晶
唐四元
申宇
郭曲练
龚妮
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.)
Central South University
Xiangya Hospital of Central South University
Original Assignee
Central South University
Xiangya Hospital of Central South University
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 Central South University, Xiangya Hospital of Central South University filed Critical Central South University
Priority to KR1020197030912A priority Critical patent/KR102340969B1/ko
Publication of WO2020029481A1 publication Critical patent/WO2020029481A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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. ventilators; 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. ventilators; 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
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • 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
    • A61M16/0402—Special features for tracheal tubes not otherwise provided for
    • A61M16/0418—Special features for tracheal tubes not otherwise provided for with integrated means for changing the degree of curvature, e.g. for easy intubation
    • 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
    • A61M16/0488—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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0625—Mouth
    • A61M2210/065—Throat; Pharynx

Definitions

  • the invention relates to the technical field of medical instruments, and in particular to an oropharyngeal airway.
  • the oropharyngeal airway is a simple and convenient upper-glottic ventilation device, which prevents the tongue from falling back by pressing down the tongue, supports the lingual arch and uvula, separates the root of the tongue from the posterior pharyngeal wall, relieves upper airway obstruction, and maintains air
  • the unobstructed airway is mainly used for the general anesthesia induction period of patients with tracheal intubation before surgery, the upper respiratory tract obstruction caused by posterior fall of various coma patients during non-tracheal intubation, and the establishment of temporary airways for other types of difficult airways.
  • Essential airway management aids for clinical departments such as anesthesia, respiratory medicine, ICU and emergency department.
  • the existing oropharyngeal airway is only composed of a flat tube or a piece of ventilation tube made of rubber or plastic.
  • the oropharyngeal secretions will further increase, increasing the risk of aspiration.
  • the blurred field of vision affects the operation, increasing the difficulty of intubation and prolonging the hypoxia time of the patient.
  • an external aspirator is required to clean up the oropharyngeal secretion, which will increase the patient's hypoxia during the operation, and the patient's oropharyngeal vagus nerve stimulation may induce serious adverse events such as cardiac arrest.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, provide an oropharyngeal airway capable of adsorbing oropharyngeal secretions while improving ventilation, clearly intubating the field of vision, and reduce the use of an external aspirator to clean up secretions.
  • the present invention adopts the following technical solutions:
  • An oropharyngeal airway includes an upper tube wall and a lower tube wall.
  • the upper tube wall includes an upper curved surface portion and an upper planar portion located outside the upper curved surface portion.
  • the lower tube wall includes a lower curved surface portion and an inferior curved surface portion.
  • On the outer lower flat portion there are two left and right first connecting walls between the upper curved portion and the lower curved portion.
  • the left edges of the upper curved portion and the lower curved portion extend to the left of the left first connecting wall.
  • the right edges of the upper curved portion and the lower curved portion both extend to the right of the first connecting wall on the right side, and an intermediate air passage is formed between the upper curved portion, the lower curved portion and the two first connecting walls.
  • a side air passage is formed between the extended portion, the extended portion of the lower curved portion and the first connecting wall, and the distance between the two first connecting walls along the flow direction of the gas gradually decreases.
  • the first connection wall is arc-shaped, and the first connection wall on the left is recessed to the right, and the first connection wall on the right is recessed to the left.
  • the left surface of the first connecting wall on the left is rougher than the right surface
  • the right surface of the first connecting wall on the right is rougher than the left surface
  • the portion of the lower surface of the upper curved portion corresponding to the middle air passage is more extended than the extending portion.
  • the upper surface of the lower curved portion is rougher than the extended portion.
  • the first connection wall is made of a flexible water-absorbing material.
  • the right surface of the left first connecting wall, the left surface of the right first connecting wall, the portion of the lower surface of the upper curved portion corresponding to the intermediate ventilation channel, and the upper surface of the lower curved portion and the intermediate ventilation is provided with a drag reduction layer for reducing airflow resistance.
  • a support wall is further provided between the upper curved portion and the lower curved portion, and the support wall is located between the two first connection walls.
  • the support wall is provided with a plurality of ventilation holes.
  • both the left surface and the right surface of the support wall are provided with a drag reduction layer for reducing airflow resistance.
  • two left and right second connecting walls are provided between the upper flat portion and the lower flat portion, and the left edges of the upper flat portion and the lower flat portion both extend to the left second connecting wall.
  • the right edges of the upper and lower planar portions extend to the right of the second connecting wall on the right, and the two first connecting walls and the two second connecting walls are connected one to one correspondingly.
  • an upper flange portion is provided on the outside of the upper flat portion, and a lower flange portion is provided on the outside of the lower flat portion.
  • the present invention has the advantages that the oropharyngeal airway disclosed in the present invention is provided with two left and right first connecting walls between the curved portion of the upper tube wall and the lower tube wall, the upper tube wall and the lower tube.
  • An intermediate airway is formed between the wall and the two first connecting walls, and the upper and lower tube walls are extended (or protruded) to the left and right sides, thereby forming the left and right side airways, and from the outer end to
  • the distance between the two first connecting walls at the inner end gradually decreases, that is, the middle airway gradually narrows, and accordingly, the two side airways gradually widen.
  • the oropharyngeal airway of the present invention When the oropharyngeal airway of the present invention is placed, When the mask is ventilated, part of the airflow passes through the middle airway and the other part passes through the two side airways. Due to the narrowing of the middle airway and the widening of the side airways, the flow rate of the internal airflow will gradually increase. The pressure gradually decreases, and the air velocity on both sides gradually slows down. The corresponding pressure gradually increases, that is, a gradually increasing pressure difference will form on the left and right sides of the first connecting wall.
  • the reflux material will be quickly adsorbed on the first connecting wall and can be taken out with the removal of the oropharyngeal airway, which avoids the use of a suction tube to stimulate the throat of an already hypoxic patient and can reduce various
  • the secretion may cause the risk of aspiration and aspiration of the patient, and also provides a clear field of vision for subsequent intubation, reduces the time to intubate, improves the success rate of intubation, and reduces the patient's hypoxia time when the tracheal tube is inserted.
  • FIG. 1 is a schematic perspective view of the oropharyngeal airway of the present invention.
  • Fig. 2 is a schematic structural view of the oropharyngeal airway of the present invention.
  • FIG. 3 is an arrow A view in FIG. 2.
  • Fig. 4 is a B-B view in Fig. 2.
  • Fig. 5 is a C-C view in Fig. 2.
  • FIG. 6 is a schematic front structural view of a supporting wall in the present invention.
  • FIG. 7 is a schematic plan view of the oropharyngeal airway of the present invention.
  • the oropharyngeal airway of this embodiment includes an upper tube wall 1 and a lower tube wall 2.
  • the upper tube wall 1 includes an upper curved surface portion 11 and The upper flat portion 12 is located outside the upper curved portion 11, and the lower tube wall 2 includes a lower curved portion 21 and a lower flat portion 22 located outside the lower curved portion 21.
  • the first connecting wall 3, the left edges of the upper curved portion 11 and the lower curved portion 21 all extend to the left of the left first connecting wall 3, and the right edges of the upper curved portion 11 and the lower curved portion 21 both extend to the right first connecting wall.
  • an intermediate air passage 4 is formed between the upper curved portion 11, the lower curved portion 21, and the two first connecting walls 3.
  • Side air passages 5 are formed therebetween, and the distance between the two first connection walls 3 gradually decreases along the flow direction of the gas.
  • This oropharyngeal airway is provided with two left and right first connecting walls 3 between the upper curved wall 1 and the lower curved wall 2 (corresponding to the position where the secretion is likely to occur in the patient's body).
  • An intermediate air passage 4 is formed between the wall 2 and the two first connecting walls 3, and the upper tube wall 1 and the lower tube wall 2 extend (or protrude) to the left and right sides, respectively, so as to respectively communicate with the left and right two first connecting walls.
  • 3 forms the left and right side air passages 5, and the distance between the two first connection walls 3 gradually decreases along the flow direction of the gas (or from the outer end to the inner end), that is, the middle air passage 4 gradually changes Narrow, correspondingly, the two lateral airways 5 gradually widen.
  • the first connection wall 3 is arc-shaped, and the first connection wall 3 on the left is recessed to the right, and the first connection wall 3 on the right is recessed to the left (refer to FIGS. 3, 4 and 3). 5), that is, the first connecting wall 3 is recessed toward the lower pressure side.
  • the arc-shaped first connection wall 3 is used and recessed toward the lower pressure side, which is conducive to the concentrated adsorption of the secretions on the adsorption concave surface, and also has a larger adsorption capacity.
  • the left surface of the left first connecting wall 3 is rougher than the right surface
  • the right surface of the right first connecting wall 3 is rougher than the left surface
  • the lower surface of the upper curved portion 11 corresponds to the middle air passage 4
  • the part is rougher than the extended part
  • the upper surface of the lower curved surface part 21 corresponding to the intermediate air passage 4 is rougher than the extended part (refer to FIGS. 3, 4 and 5), that is, the four sides of the middle air passage 4 are side-by-side.
  • the three sides of the side airway 5 are set more smoothly, which is conducive to increasing the difference in gas flow velocity between the middle airway 4 and the side airway 5, thereby increasing the pressure difference between the two sides of the first connecting wall 3, thereby improving oropharyngeal ventilation.
  • the adsorption performance of the channel and the rougher surface set away from the intermediate airway 4 at the same time are also conducive to reducing the flow of secretions along the surface.
  • the first connecting wall 3 is made of a flexible water-absorbing material, such as a multilayer gauze made of peach bud cotton.
  • a flexible water-absorbing material such as a multilayer gauze made of peach bud cotton.
  • the right surface of the left first connection wall 3, the left surface of the right first connection wall 3, a portion of the lower surface of the upper curved portion 11 corresponding to the intermediate air passage 4, and a lower curved portion 21 The upper surface of the surface corresponding to the middle air passage 4 is provided with a drag reduction layer (not shown) for reducing airflow resistance, that is, the four sides surrounding the middle air passage 4 are provided with a drag reduction layer to reduce drag.
  • the layer may be, for example, a PTFE (polytetrafluoroethylene) coating, which can further increase the flow velocity of the gas in the intermediate air passage 4, thereby reducing the internal pressure and further improving the adsorption effect.
  • a support wall 6 is further provided between the upper curved portion 11 and the lower curved portion 21, and the support wall 6 is located between the two first connecting walls 3.
  • both the left surface and the right surface of the support wall 6 are provided with drag reduction layers (not shown in the figure) for reducing airflow resistance.
  • the left and right surfaces of the support wall 6 are also provided with drag reduction layers, which is beneficial to reduce the influence of the support wall 6 on the air flow velocity in the intermediate air passage 4.
  • a plurality of vent holes 61 may be provided on the support wall 6 so as to communicate the air flow channels on both sides of the support wall 6 so as to form the intermediate air passage 4 as a whole;
  • the support wall 6 preferably adopts a flat wall surface, which is conducive to improving support
  • the strength and material may be medical hard plastics, etc .;
  • the support wall 6 is preferably provided in the middle of the two first connecting walls 3.
  • two left and right second connecting walls 7 are provided between the upper flat portion 12 and the lower flat portion 22, and the left edges of the upper flat portion 12 and the lower flat portion 22 both extend to the left second connection.
  • the right edges of the upper flat portion 12 and the lower flat portion 22 all extend to the right of the second connecting wall 7 on the right side, and the two first connecting walls 3 and the two second connecting walls 7 are connected one by one correspondingly.
  • a part of the airflow enters the middle air passage 4 through the channel between the two second connecting walls 7, and another part of the airflow enters the side airway 5 through the side of the second connecting wall 7.
  • the second connecting wall 7 preferably adopts a flat wall surface, which is beneficial to improving the support strength for the upper flat portion 12 and the lower flat portion 22.
  • an upper flange portion 13 is provided on the outside of the upper flat portion 12, and a lower flange portion 23 is provided on the outside of the lower flat portion 22.
  • the entire oropharyngeal airway is positioned by the upper flange portion 13 and the lower flange portion 23.
  • the first connecting wall 3 is made of a flexible water-permeable material. Under this pressure difference, a depression deformation will occur, and the support wall 6 is used to provide support, thereby To maintain the overall shape of the oropharyngeal airway, drag reduction layers are also provided on both sides of the support wall 6 to avoid affecting the flow rate of the gas in the intermediate airway 4 and affecting the pressure difference described above.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Otolaryngology (AREA)
  • External Artificial Organs (AREA)

Abstract

La présente invention concerne une sonde oropharyngée comprenant une partie de surface incurvée supérieure (11), une partie de surface plate supérieure (12) positionnée sur le côté externe de la partie de surface incurvée supérieure (11), une partie de surface incurvée inférieure (21), et une partie de surface plate inférieure (22) positionnée sur le côté externe de la partie de surface incurvée inférieure (21). Deux premières parois de liaison (3), gauche et droite, sont disposées entre la partie de surface incurvée supérieure (11) et la partie de surface incurvée inférieure (21). Une voie aérienne centrale (4) et deux voies aériennes latérales (5) sont formées entre la partie de surface incurvée supérieure (11), la partie de surface incurvée inférieure (21), et les deux premières parois de liaison (3). La distance entre les deux premières parois de liaison (3) diminue progressivement dans la direction d'écoulement de gaz, de telle sorte que la voie aérienne centrale (4) devient de plus en plus étroite et les deux voies aériennes latérales (5) deviennent de plus en plus larges. Les premières parois de liaison (3) sont agencées de manière à former une forme concave et constituées d'un matériau souple absorbant l'eau. Les différentiels de pression entre les côtés gauche et droit de chaque première paroi résultant du principe de Bernoulli dans la mécanique de fluide sont utilisés pour amener la sonde oropharyngée à pouvoir, tout en améliorant également l'écoulement d'air, absorber les sécrétions, réduire l'aspiration de reflux, maintenir clair un champ de vision pour une canule, réduire le temps qu'un patient est sans oxygène pendant l'insertion du tube trachéal, tout en réduisant également les réactions indésirables provoquées par une stimulation potentielle de l'oropharynx du patient à partir de l'utilisation nécessaire d'un dispositif d'aspiration à pression négative externe pour dégager des sécrétions.
PCT/CN2018/118207 2018-08-09 2018-11-29 Sonde oropharyngée Ceased WO2020029481A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020197030912A KR102340969B1 (ko) 2018-08-09 2018-11-29 구인두 기도유지기

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810903148.4A CN108888845B (zh) 2018-08-09 2018-08-09 一种口咽通气道
CN201810903148.4 2018-08-09

Publications (1)

Publication Number Publication Date
WO2020029481A1 true WO2020029481A1 (fr) 2020-02-13

Family

ID=64353547

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/118207 Ceased WO2020029481A1 (fr) 2018-08-09 2018-11-29 Sonde oropharyngée

Country Status (3)

Country Link
KR (1) KR102340969B1 (fr)
CN (1) CN108888845B (fr)
WO (1) WO2020029481A1 (fr)

Cited By (1)

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WO2024199128A1 (fr) * 2023-03-27 2024-10-03 天津麦迪安医疗器械有限公司 Conduit de masque de glotte

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Publication number Priority date Publication date Assignee Title
CN108888845B (zh) * 2018-08-09 2023-08-15 中南大学湘雅医院 一种口咽通气道
KR102864085B1 (ko) * 2023-06-29 2025-09-24 서울대학교병원 다중공 기도유지기

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US20020170556A1 (en) * 2001-05-17 2002-11-21 Luis Gaitini Anatomical airway ventilation intubating and resuscitation device
CN201067567Y (zh) * 2007-08-29 2008-06-04 中国人民解放军南京军区南京总医院 防脱落可供氧口咽通气道
CN102908709A (zh) * 2012-11-09 2013-02-06 陈宁 一次性口咽径路给氧面罩
CN203647319U (zh) * 2013-12-18 2014-06-18 煤炭总医院 一次性内镜用口咽通气套装
WO2016023747A1 (fr) * 2014-08-12 2016-02-18 Deltamedics Canule oropharyngée modulaire
CN204484995U (zh) * 2015-01-20 2015-07-22 南京脑科医院 一种双腔式口咽通气导管
CN107349502A (zh) * 2017-08-21 2017-11-17 天津美迪斯医疗用品有限公司 一种带气源接头的口咽通气道
CN108888845A (zh) * 2018-08-09 2018-11-27 中南大学湘雅医院 一种口咽通气道

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024199128A1 (fr) * 2023-03-27 2024-10-03 天津麦迪安医疗器械有限公司 Conduit de masque de glotte

Also Published As

Publication number Publication date
KR102340969B1 (ko) 2021-12-17
KR20200018395A (ko) 2020-02-19
CN108888845A (zh) 2018-11-27
CN108888845B (zh) 2023-08-15

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