WO2011057458A1 - 内置阻塞式食管引流管喉罩通气道 - Google Patents

内置阻塞式食管引流管喉罩通气道 Download PDF

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Publication number
WO2011057458A1
WO2011057458A1 PCT/CN2009/075072 CN2009075072W WO2011057458A1 WO 2011057458 A1 WO2011057458 A1 WO 2011057458A1 CN 2009075072 W CN2009075072 W CN 2009075072W WO 2011057458 A1 WO2011057458 A1 WO 2011057458A1
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WIPO (PCT)
Prior art keywords
drainage
tube
esophageal
chamber
cuff
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PCT/CN2009/075072
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English (en)
French (fr)
Inventor
邹德伟
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天津美迪斯医疗用品有限公司
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Publication of WO2011057458A1 publication Critical patent/WO2011057458A1/zh

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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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0402—Special features for tracheal tubes not otherwise provided for
    • A61M16/0409—Special features for tracheal tubes not otherwise provided for with mean for closing the oesophagus
    • 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
    • A61M16/0415—Special features for tracheal tubes not otherwise provided for with access means to the stomach
    • 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
    • A61M16/044—External cuff pressure control or supply, e.g. synchronisation with respiration

Definitions

  • the utility model belongs to a medical device, in particular to a built-in obstructed esophageal drainage tube laryngeal mask airway for establishing artificial airway ventilation in a patient for surgical anesthesia, rescue of a critically ill patient or other assisted breathing.
  • the laryngeal mask airway is an airway that was invented and used in the first place by Brain in 1983. It is easy to operate and can replace the tracheal intubation to quickly establish a respiratory passage for the patient, especially for a large number of difficult airways. The patient is the first choice.
  • the standard laryngeal mask airway is the most commonly used laryngeal mask airway in the clinic.
  • the basic structure includes a capsular, an airway and an inflation tube for inflating the sac. It is mainly used for the maintenance of the respiratory tract, but it can not drain the esophagus, so it is not suitable for patients with laryngeal obstruction, stomach fullness, unfasted water, acute abdomen, abdominal trauma, drug poisoning, gastrointestinal bleeding;
  • a special laryngeal mask airway for guiding the tracheal intubation which is an improved device specially designed for guiding the insertion of the tracheal intubation, and the tracheal tube having an inner diameter of 9.0 can be inserted at most;
  • the laryngeal mask airway can have drainage effect on esophageal reflux material
  • the basic structure is similar to the standard laryngeal mask airway, but has a drainage tube parallel to the vent pipe, The drainage tube passes through the laryngeal mask and opens to the tip of the cuff, which in use blocks the patient's esophageal opening so that the esophageal reflux and stomach contents can be drawn through the opening of the tip.
  • this double-tube structure of the laryngeal mask airway has certain technical difficulties in the clinical insertion process.
  • the utility model aims to overcome the deficiencies in the prior art, and provides a built-in obstructed esophageal drainage tube laryngeal mask airway, the laryngeal mask airway is a single-tube multi-chamber structure, and an esophageal drainage tube for esophageal drainage is built in the tube.
  • An esophageal obstruction cuff is designed at the front end of the drainage tube. It not only has esophageal obstruction function, but also has the characteristics of safety, simple structure, easy operation and easy insertion.
  • the tube drainage tube laryngeal mask airway comprises a laryngeal mask and an esophageal drainage tube, the front end of the laryngeal mask is a cuff, and the rear end is a vent pipe, and a gas source joint is installed at an end opposite to the snorkel and the air source joint
  • An inflation tube is connected to the inflation tube, and a pressure indicator and an esophageal drainage tube are connected to the inflation tube, wherein: the tube of the snorkel is provided with an esophageal drainage tube for esophageal drainage to form a laryngeal mask air passage with a single tube and a multi-channel structure.
  • the ventilating tube is composed of a venting chamber, a drainage chamber and a plenum chamber.
  • the venting chamber is provided with a supporting wall extending through the entire chamber.
  • the venting tube having the two ends is open at the tip of the duckbill.
  • a vent hole communicating with the ventilating cavity, a drainage hole communicating with the drainage cavity is opened at the top of the duckbill, and an inflation hole communicating with the inflation cavity is opened at the back of the duckbill, and a connection cavity is arranged at the rear end of the vent pipe.
  • the connecting chambers are respectively communicated with the venting chamber, the drainage chamber and the inflation chamber.
  • the esophageal drainage tube is composed of an esophageal drainage port, an esophageal obstruction cuff, a cuff inflation port, an esophageal drainage channel, a cuff inflation channel, a drainage interface, a check valve and a limit ring, and the esophageal drainage port passes through the esophageal drainage channel
  • the cuff inflation port communicates with the one-way valve through the cuff inflation passage
  • the cuff inflation port communicates with the esophageal obstruction cuff
  • the esophageal drainage port is located at the tip end of the esophageal drainage tube
  • the esophageal obstruction cuff is located at the esophageal drainage tube
  • the front end is behind the esophageal drainage port; the rear end of the esophageal drainage tube is provided with a drainage interface, a check valve and a limiting ring, wherein the limiting ring is located before
  • the esophageal drainage tube is provided with a depth mark.
  • the side of the cuff is in the shape of a duckbill.
  • the bottom of the cuff is provided with an oval sealing balloon at the bottom, and the upper part is a rucksack.
  • the rucksack communicates with the inside of the sealed air bag and forms an inner cavity.
  • the bottom of the cuff is provided with an annular vent.
  • the front end has a drain opening and the rear has a connecting cavity.
  • the air source connector is a multi-chamber straight-through structure, and has a drainage chamber socket, a gas chamber socket and a ventilation chamber socket at a front end thereof, a standard socket, an inflation tube insertion port and a drainage tube insertion port at the rear end, wherein the ventilation chamber socket passes through the joint
  • the air passage is connected to the standard socket, and the drainage chamber socket communicates with the insertion tube insertion port through the joint drainage tube passage, and the inflation chamber socket communicates with the inflation tube insertion port through the joint inflation passage, and the air source joint passes through the connection chamber of the rear portion of the ventilation tube and The vent pipes are connected.
  • the laryngeal mask airway is a single-tube multi-cavity structure, which has an esophageal drainage tube for esophageal drainage, and an esophageal obstruction cuff is designed at the front end of the drainage tube.
  • the upper end of the esophagus can be completely closed by inflating the esophageal sac cuff or physiological saline, which can effectively prevent the reflux and aspiration of the stomach contents, and can prevent the airway from the laryngeal mask.
  • Simple structure It takes up less space and is easier and easier to insert than the traditional esophageal drainage type laryngeal mask.
  • the cuff can be displaced toward the trachea, which improves the cuff. Sealing;
  • the esophageal drainage tube of the laryngeal mask airway can be freely telescoped into and out of the drainage hole, making it easier to insert.
  • Figure 1 is a schematic view of the laryngeal mask air passage of the present invention
  • Figure 2 is a side cross-sectional view of Figure 1;
  • Figure 3 is a side cross-sectional view of the vent pipe of Figure 1;
  • Figure 4 is a cross-sectional view of the vent pipe of Figure 1;
  • Figure 5 is a cross-sectional view of the vent pipe of Figure 1;
  • Figure 6 is a side cross-sectional view of the mask of the laryngeal mask airway
  • Figure 7 is a cross-sectional view of the air supply connector of the laryngeal mask airway
  • Figure 8 is a schematic view of the esophageal drainage tube of the laryngeal mask airway
  • Figure 9 is an enlarged view of the A region of the esophageal drainage tube of the laryngeal mask airway;
  • Figure 10 is a schematic illustration of the anatomical location of the laryngeal mask airway.
  • a built-in obstructive esophageal drainage tube laryngeal mask airway includes a laryngeal mask and an esophageal drainage tube, the throat The front end of the cover is a hood, and the rear end is a vent pipe.
  • a gas source joint is installed, and the air source joint is connected with an air tube, and the air tube is connected with a pressure indicator, the snorkel
  • the tube has a built-in esophageal drainage tube for esophageal drainage to form a laryngeal mask airway with a single tube and multiple lumen structure.
  • the ventilating tube is composed of a venting chamber, a drainage chamber and a plenum chamber.
  • the venting chamber is provided with a supporting wall extending through the entire chamber.
  • the venting tube having the two ends is open at the tip of the duckbill. Ventilation a venting opening, a drainage hole communicating with the drainage cavity is formed at the top of the duckbill, and an inflation hole communicating with the inflation cavity is opened at the back of the duckbill, and a connection cavity is provided at a rear end of the vent pipe, and the connection cavity It is in communication with the ventilation chamber, the drainage chamber and the inflation chamber, respectively.
  • the snorkel is made of silicone or other elastic material with a certain degree of introduction.
  • the esophageal drainage tube is built in the drainage lumen of the snorkel, and the esophageal drainage tube penetrates from the drainage hole into the drainage lumen, the drainage tube passage, and finally passes through the drainage tube insertion port, and the esophageal drainage tube is composed of the esophageal drainage port and the esophagus Blocking cuff, cuff inflation port, esophageal drainage channel, cuff inflation channel, drainage interface, check valve and limit ring, the esophageal drainage port communicates with the drainage interface through the esophageal drainage channel, and the cuff inflation port passes through the sleeve
  • the balloon inflation channel communicates with the one-way valve
  • the cuff inflation port communicates with the esophageal obstruction cuff
  • the esophageal drainage port is located at the tip end of the esophageal drainage tube
  • the esophageal obstruction cuff is located at the front end of the esoph
  • the esophageal drainage tube is provided with a depth mark for indicating the depth of the esophageal drainage tube to penetrate the human esophagus.
  • the front end of the esophageal drainage tube 4 can be aspirated or retracted into the drainage holes 1-6 as needed, and the rear end thereof extends out of the drainage tube insertion opening 3-7.
  • the side of the cuff is in the shape of a duckbill.
  • the bottom of the cuff is provided with an oval sealing balloon at the bottom, and the upper part is a rucksack.
  • the rucksack communicates with the inside of the sealed air bag and forms an inner cavity.
  • the bottom of the cuff is provided with an annular vent.
  • the front end has a drain opening and the rear has a connecting cavity.
  • the mask of the laryngeal mask airway is made of silicone or other elastic material.
  • the air source connector is a multi-chamber straight-through structure, and has a drainage chamber socket, a gas chamber socket and a ventilation chamber socket at a front end thereof, and a 15 mm standard socket, an inflation tube insertion port and a drainage tube insertion port at the rear end, wherein the ventilation chamber socket passes through
  • the airway of the joint communicates with the standard socket of 15mm
  • the inlet of the drainage chamber communicates with the insertion port of the drainage tube through the joint drainage tube passage
  • the inflation chamber socket communicates with the insertion tube of the inflation tube through the joint inflation passage, and the connection of the air source joint through the rear of the ventilation tube
  • the cavity is connected to the vent tube.
  • the inflation tube 5 of the laryngeal mask air passage is inserted into the inflation tube insertion port 3-6 of the air source connector 3, and communicates with the inflation chamber 1-3, and a pressure indicator 6 is connected to the rear of the inflation tube 5.
  • the laryngeal mask airway can be designed in a variety of specifications for infants, toddlers, children, children, general adults and heavier adults.
  • the scope of application is mainly: (1) emergency resuscitation in emergency department, ICU and various departments, especially in cases of emergency airway management by non-narcotic staff; (2) patients with difficulty in inserting trachea, especially at the same time Emergency surgery patients; (3) tracheal and laryngeal examination and removal of foreign bodies in the trachea; (4) general anesthesia patients who do not wish to use tracheal intubation.
  • FIG. 10 is a schematic view showing the anatomical position of the airway of the laryngeal mask of the present invention.
  • the gas in the cuff 2 and the esophageal obstruction cuff 4-2 is first withdrawn through the pressure indicator 6 and the check valve 4-7, respectively.
  • the esophageal drainage tube 4 is extended from the drainage holes 1-6 and a small amount of lubricant is applied, and then retracted into the drainage holes 1-6, and then a small amount of lubricant is applied to the cuff 2. Inserting the front tip of the mask 2 of the laryngeal mask airway into the oral cavity until the cuff 2 reaches the throat portion, as shown in FIG.
  • the -1 and the rucksack 2-2 expand and form a seal around the patient's airway opening, at which time the patient's trachea and venting chamber 1-1 form an airway; while the tip of the cap 2 blocks the patient's esophagus.
  • the esophageal drainage tube 4 is extended into the drainage hole 1-6 to enter the esophagus of the patient, and the gas or physiological saline is flushed into the esophageal obstruction cuff 4-2 through the check valve 4-7 to expand and block the patient's esophagus.
  • the esophageal drainage channel 4-4 and the drainage interface 4-6 are connected to the esophagus.
  • the doctor can connect the breathing apparatus to the air supply connector 3 to supply oxygen to the patient; at the same time, the esophageal drainage tube 4 can be used to withdraw the reflux of the patient's esophagus.
  • the utility model is especially suitable for an all-round anesthesia process and rescue treatment of critically ill patients and patients requiring high-pass air pressure.

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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)
  • Media Introduction/Drainage Providing Device (AREA)
  • External Artificial Organs (AREA)

Description

说 明 书 内置阻塞式食管弓 I流管喉 ¾1气道 技术领域
本实用新型属于医疗器械， 尤其涉及一种应用于手术麻醉、 危重患者抢救或 其它辅助呼吸的患者建立人工气道通气的内置阻塞式食管引流管喉罩通气道。 背景技术
喉罩通气道是 Brain在 1983年发明并首先提倡使用的一种采用声门外方式 通气的通气道， 它操作简便， 可以替代气管插管迅速为患者建立呼吸通道， 尤其 是对于大量困难气道的患者更是首选。
为了提高喉罩通气道的临床用途， 曾先后开发了三种基本类型的喉罩通气 道：
( 1 )、 标准型喉罩通气道， 是目前临床最为常用的喉罩通气道， 基本结构有 罩囊、 通气道和用于为罩囊充气的充气管。 其主要用于呼吸道的维持， 但是其不 能对食道进行引流操作， 因此对于喉梗阻、 饱胃、 未禁食水、 急腹症、 腹部外 伤、 药物中毒、 消化道出血的患者不宜使用；
( 2 )、 引导气管插管的专用喉罩通气道， 此种喉罩通气道是专门为导引插入 气管插管而设计的改良装置， 最大可以引插内径为 9. 0 的气管导管；
(3 )、 食管引流型喉罩通气道， 此种喉罩通气道可以对食管反流物质具有引 流作用， 其基本结构类似于标准喉罩通气道， 只是具有一个与通气管平行的引 流管， 该引流管通过喉罩罩囊并开口于罩囊的尖端， 在使用中尖端会堵塞在患 者食管入口， 因而可以通过尖端的开口吸引食道反流物和胃内容物。 但是， 此 种喉罩通气道多位双管结构， 在临床插入过程中具有一定的技术难度。
实用新型内容
本实用新型是为了克服现有技术中的不足， 提供一种内置阻塞式食管引流 管喉罩通气道， 喉罩通气道为单管多腔道结构， 管中内置有用于食管引流的食 管引流管， 在引流管前端设计有食管阻塞套囊。 不但具有食管阻塞功能， 更具 有安全、 结构简捷、 操作简便，易于插入的特点。
本实用新型为实现上述目的， 通过以下技术方案实现， 一种内置阻塞式食 管引流管喉罩通气道， 包括喉罩和食管引流管， 所述喉罩的前端为罩囊、 后端为 通气管，在通气管与罩囊相对的一端安装有气源接头，气源接头上连接着充气管， 充气管上连接有压力指示器和食管引流管，其特征是： 所述通气管的管内置有用 于食管引流的食管引流管构成单管多腔道结构的喉罩通气道。
所述通气管由通气腔、 引流腔和充气腔构成， 通气腔中间设有贯穿全腔的支 撑壁， 所述两端开口的通气管， 其前端呈鸭嘴形， 在鸭嘴的下部开有与通气腔相 通的通气孔， 在鸭嘴的顶部开有与引流腔相通的引流孔， 在鸭嘴的背部开有与充 气腔相通的充气孔， 所述通气管后端设有连接腔， 所述连接腔分别与通气腔、 引 流腔和充气腔相通。
所述食管引流管由食管引流口、 食管阻塞套囊、 套囊充气口、 食管引流道、 套囊充气道、 引流接口、 单向阀和限位环构成， 所述食管引流口通过食管引流 道与引流接口相通， 套囊充气口通过套囊充气道与单向阀相通， 套囊充气口与 食管阻塞套囊相通， 食管引流口位于食管引流管的尖端， 食管阻塞套囊位于食 管引流管的前端且在食管引流口之后； 所述食管引流管的后端设有引流接口、 单 向阀和限位环，其中限位环位于引流接口之前， 所述食管引流管内置于通气管的 引流腔内，食管引流管依次贯穿于引流孔、引流腔、引流管通道和引流管插入口。
所述食管引流管上设有深度标记。
所述罩囊侧视形状呈鸭嘴形， 罩囊底部环周设置卵圆形密封气囊， 上部为背 囊， 背囊与密封气囊内部相通并形成内腔， 罩囊底部开有环形通气口， 前端开有 引流口，后部有连接腔。所述气源接头为多腔直通结构，其前端设有引流腔插口、 充气腔插口和通气腔插口， 后端设有标准插口、 充气管插入口和引流管插入口， 其中通气腔插口通过接头通气道与标准插口相通，引流腔插口通过接头引流管通 道与引流管插入口相通， 充气腔插口通过接头充气道与充气管插入口相通， 所述 气源接头通过通气管后部的连接腔与通气管相连接。
有益效果： 喉罩通气道为单管多腔道结构， 其内置有用于食管引流的食管 引流管， 在引流管前端设计有食管阻塞套囊。 在采用喉罩通气道进行呼吸道维 持中， 通过给食管阻塞套囊充气或生理盐水将食管上端完全封闭， 不仅可以有 效的预防胃内容物反流和误吸， 而且可防止从喉罩通气道周围漏出的气体进入 胃内， 同时在必要时可以通过内置的食管引流管进行食管中反流物质和胃内容 物的吸引， 使喉罩通气道确实成为一种安全有效的呼吸道维持装置。 结构简捷， 占据空间小，在插入操作中比传统的食管引流型喉罩通气道更加简便容易； 当喉 罩通气道的背囊被充起时可以使罩囊发生靠向气管的位移， 提高了罩囊的密封 性； 喉罩通气道的食管引流管可以自由伸縮出入引流孔， 更易于插入操作。 附图说明
图 1是本实用新型所述喉罩通气道的示意图；
图 2是图 1的侧剖面图；
图 3是图 1中通气管的侧剖面图；
图 4是图 1中通气管的剖面图；
图 5是图 1中通气管的截面图；
图 6是喉罩通气道的罩囊的侧剖面图；
图 7是喉罩通气道的气源接头的剖面图；
图 8是喉罩通气道的食管引流管的示意图；
图 9是喉罩通气道的食管引流管的 A区放大图；
图 10是喉罩通气道的解剖学位置示意图。
图中： 1、 通气管， 1-1、 通气腔， 1-2、 引流腔， 1-3、 充气腔， 1-4、 支撑 壁， 1-5、 通气孔， 1-6、 引流孔， 1-7、 充气孔， 1-8、 连接腔， 2、 罩囊， 2_1、 密封气囊， 2-2、 背囊， 2-3、 内腔， 2-4、 环形通气口， 2-5、 引流口， 2-6、 连 接腔， 3、 气源接头， 3-1、 引流腔插口， 3-2、 接头充气道， 3-3、 充气腔插口， 3-4、 通气腔插口， 3-5、 标准插口， 3-6、 充气管插入口， 3-7、 引流管插入口， 3-8、 通气道， 3-9、 引流管通道， 4、 食管引流管， 4-1、 食管引流口， 4-2、 食 管阻塞套囊， 4-3、 套囊充气口， 4-4、 食管引流道， 4-5、 套囊充气道， 4-6、 引流接口， 4-7、 单向阀， 4-8、 限位环， 5、 充气管， 6、 压力指示器，
具体实施方式
以下结合较佳实施例， 对依据本实用新型提供的具体实施方式详述如下： 详见附图， 一种内置阻塞式食管引流管喉罩通气道， 包括喉罩和食管引流 管， 所述喉罩的前端为罩囊、 后端为通气管， 在通气管与罩囊相对的一端安装有 气源接头， 气源接头上连接着充气管， 充气管上连接有压力指示器， 所述通气管 的管内置有用于食管引流的食管引流管构成单管多腔道结构的喉罩通气道。
所述通气管由通气腔、 引流腔和充气腔构成， 通气腔中间设有贯穿全腔的支 撑壁， 所述两端开口的通气管， 其前端呈鸭嘴形， 在鸭嘴的下部开有与通气腔相 通的通气孔， 在鸭嘴的顶部开有与引流腔相通的引流孔， 在鸭嘴的背部开有与充 气腔相通的充气孔， 所述通气管后端设有连接腔， 所述连接腔分别与通气腔、 引 流腔和充气腔相通。 通气管由硅胶或其它弹性材料制成， 具有一定的引入弧度。
所述食管引流管内置于通气管的引流腔内，食管引流管从引流孔穿入进入引 流腔、 引流管通道， 最后由引流管插入口穿出， 所述食管引流管由食管引流口、 食管阻塞套囊、 套囊充气口、 食管引流道、 套囊充气道、 引流接口、 单向阀和 限位环构成， 所述食管引流口通过食管引流道与引流接口相通， 套囊充气口通 过套囊充气道与单向阀相通， 套囊充气口与食管阻塞套囊相通， 食管引流口位 于食管引流管的尖端， 食管阻塞套囊位于食管引流管的前端且在食管引流口之 后； 所述食管引流管的后端设有引流接口、 单向阀和限位环， 其中限位环位于引 流接口之前， 用于限制食管引流管深入人体食道的深度。 所述食管引流管上设有 深度标记， 用于指示食管引流管深入人体食道的深度。 食管引流管 4前端可以根 据需要探出或縮入引流孔 1-6， 其后端伸出引流管插入口 3-7。
所述罩囊侧视形状呈鸭嘴形， 罩囊底部环周设置卵圆形密封气囊， 上部为背 囊， 背囊与密封气囊内部相通并形成内腔， 罩囊底部开有环形通气口， 前端开有 引流口， 后部有连接腔。 喉罩通气道的罩囊， 由硅胶或其它弹性材料制成。
所述气源接头为多腔直通结构， 其前端设有引流腔插口、 充气腔插口和通气 腔插口， 后端设有 15mm标准插口、 充气管插入口和引流管插入口， 其中通气腔 插口通过接头通气道与 15mm标准插口相通， 引流腔插口通过接头引流管通道与 引流管插入口相通， 充气腔插口通过接头充气道与充气管插入口相通， 所述气源 接头通过通气管后部的连接腔与通气管相连接。
喉罩通气道的充气管 5插入气源接头 3上的充气管插入口 3-6， 并与充气腔 1-3相通， 充气管 5后部连接一压力指示器 6。
本喉罩通气道可设计成多种规格型号，分别适用于婴儿、 幼儿、 儿童、少儿、 普通成人和较重成人等。适用范围主要是：(1)急症科、 ICU和各科室的急救复苏， 尤其是由非麻醉工作人员进行紧急呼吸道管理操作的情况； (2)插入气管困难的 患者，尤其是同时存在饱胃的急诊手术患者； (3)气管和喉部检查以及气管内异物 的清除；(4)不希望采用气管插管的全身麻醉患者。
工作原理及操作过程：
图 10为本实用新型所述喉罩通气道的解剖学位置示意图。在使用本实用新 型提供的喉罩通气道时， 先通过压力指示器 6和单向阀 4-7分别将罩囊 2和食 管阻塞套囊 4-2中的气体抽出。 将食管引流管 4伸出引流孔 1-6并涂抹少量润 滑剂， 再縮入引流孔 1-6内， 然后在罩囊 2上涂抹少量润滑剂。 将喉罩通气道 的罩囊 2前部尖端插入口腔中，直至罩囊 2到达咽喉部位，如图 10所示，然后通 过压力指示器 6向罩囊 2中充入适量的气体使得密封气囊 2-1和背囊 2-2膨胀 并在患者气道口周围形成密封，此时患者气管和通气腔 1-1形成通气道；同时罩 囊 2尖端堵住患者食管。 将食管引流管 4伸出引流孔 1-6使其进入患者食道内， 通过单向阀 4-7向食管阻塞套囊 4-2中冲入气体或生理盐水， 使其膨胀并堵住 患者食管， 并使得食管引流道 4-4和引流接口 4-6与食管连通。 插入后，医生可 以将呼吸设备与气源接头 3连接，从而为患者供氧；同时还可以用食管引流管 4 将患者食管的反流物引出。 本实用新型尤其适用于全方位的麻醉过程和危重患 者的抢救处理及需要高通气压的患者。
以上所述， 仅是本实用新型的较佳实施例而已， 并非对本实用新型的结构作 任何形式上的限制。凡是依据本实用新型的技术实质对以上实施例所作的任何简 单修改、 等同变化与修饰， 均仍属于本实用新型的技术方案的范围内。

Claims

权 利 要 求 书
1、 一种内置阻塞式食管引流管喉罩通气道， 包括喉罩和食管引流管， 所述 喉罩的前端为罩囊、后端为通气管，在通气管与罩囊相对的一端安装有气源接头， 气源接头上连接着充气管， 充气管上连接有压力指示器， 所述通气管的管内置有 用于食管引流的食管引流管构成单管多腔道结构的喉罩通气道。
2、 根据权利要求 1所述的内置阻塞式食管引流管喉罩通气道， 其特征是： 所述通气管由通气腔、引流腔和充气腔构成，通气腔中间设有贯穿全腔的支撑壁， 所述两端开口的通气管， 其前端呈鸭嘴形， 在鸭嘴的下部开有与通气腔相通的通 气孔， 在鸭嘴的顶部开有与引流腔相通的引流孔， 在鸭嘴的背部开有与充气腔相 通的充气孔， 所述通气管后端设有连接腔， 所述连接腔分别与通气腔、 引流腔和 充气腔相通。
3、 根据权利要求 1或 2所述的内置阻塞式食管引流管喉罩通气道， 其特征 是： 所述食管引流管由食管引流口、 食管阻塞套囊、 套囊充气口、 食管引流道、 套囊充气道、 引流接口、 单向阀和限位环构成， 所述食管引流口通过食管引流 道与引流接口相通， 套囊充气口通过套囊充气道与单向阀相通， 套囊充气口与 食管阻塞套囊相通， 食管引流口位于食管引流管的尖端， 食管阻塞套囊位于食 管引流管的前端且在食管引流口之后； 所述食管引流管的后端设有引流接口、 单 向阀和限位环，其中限位环位于引流接口之前， 所述食管引流管内置于通气管的 引流腔内，食管引流管依次贯穿于引流孔、引流腔、引流管通道和引流管插入口。
4、 根据权利要求 3所述的内置阻塞式食管引流管喉罩通气道， 其特征是： 所述食管引流管上设有深度标记。
5、 根据权利要求 1所述的内置阻塞式食管引流管喉罩通气道， 其特征是： 所述罩囊侧视形状呈鸭嘴形， 罩囊底部环周设置卵圆形密封气囊， 上部为背囊， 背囊与密封气囊内部相通并形成内腔， 罩囊底部开有环形通气口， 前端开有引流 口， 后部有连接腔。
6、 根据权利要求 1所述的内置阻塞式食管引流管喉罩通气道， 其特征是： 所述气源接头为多腔直通结构， 其前端设有引流腔插口、 充气腔插口和通气腔插 口， 后端设有标准插口、 充气管插入口和引流管插入口， 其中通气腔插口通过接 头通气道与标准插口相通， 引流腔插口通过接头引流管通道与引流管插入口相 通， 充气腔插口通过接头充气道与充气管插入口相通， 所述气源接头通过通气管 后部的连接腔与通气管相连接。
PCT/CN2009/075072 2009-11-11 2009-11-22 内置阻塞式食管引流管喉罩通气道 WO2011057458A1 (zh)

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