WO2023123895A1 - 免充气喉罩 - Google Patents

免充气喉罩 Download PDF

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Publication number
WO2023123895A1
WO2023123895A1 PCT/CN2022/099593 CN2022099593W WO2023123895A1 WO 2023123895 A1 WO2023123895 A1 WO 2023123895A1 CN 2022099593 W CN2022099593 W CN 2022099593W WO 2023123895 A1 WO2023123895 A1 WO 2023123895A1
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WO
WIPO (PCT)
Prior art keywords
laryngeal mask
air
tube body
free
camera
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PCT/CN2022/099593
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English (en)
French (fr)
Inventor
熊雪锐
王永锋
李宏博
张家智
王卫东
王桃红
李卫平
夏帮凑
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浙江优亿医疗器械股份有限公司
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Publication of WO2023123895A1 publication Critical patent/WO2023123895A1/zh

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    • 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
    • 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

Definitions

  • the invention relates to the technical field of medical instruments, in particular to an endoscope sleeve.
  • Laryngeal mask ventilation is a new type of supraglottic airway management device, which plays an important role in first aid and anesthesia.
  • the laryngeal mask has been used for more than 40 years since it was invented in the 1980s.
  • this type of laryngeal mask has unavoidable defects: the inflatable laryngeal mask needs to be inflated and pumped during use, and the laryngeal mask needs to be pressed for pumping before insertion, so that the air bag maintains a shuttle-shaped state.
  • the front end of the laryngeal mask and the throat are not tightly sealed, which may cause the communication between the trachea and the esophagus, which may cause the gas in the trachea to pass into the stomach, and the fluid in the stomach may flow back into the trachea.
  • the laryngeal mask is inserted into the human body through blind insertion, and it cannot be seen during this process.
  • the present invention provides a non-inflatable laryngeal mask with excellent sealing performance and avoiding pressure on the throat.
  • the present invention adopts the following technical solutions.
  • the air-free laryngeal mask includes a tube body and a cuff formed with the distal end of the tube body, the tube body is made of soft material, and the tube body defines a ventilation cavity extending from the proximal end to the distal end, the tube body
  • the proximal side of the body is provided with an interface connected with external equipment, and the distal end of the tube is connected with the cuff
  • the cuff is made of soft material, has an air-free capsule on the abdomen and a hollow capsule on the back , the non-inflatable bag defines an outlet communicating with the ventilation cavity
  • the head end of the cuff is provided with a plurality of skirt protrusions, and by increasing the size of the cuff at the head end, the connection between the head end of the cuff and the throat is increased.
  • this method can effectively avoid foreign body sensation and damage to the patient's throat.
  • the air-free laryngeal mask provided in this technical solution is made of soft material as a whole, which is softer and reduces the feeling of foreign body; at the same time, the cuff is made of soft material, which can relieve the pressure of the cuff on the throat to a certain extent In addition, the cuff is made of soft material to better adapt to the structure of the throat. At the same time, the skirt protrusion is used to further strengthen the sealing effect, so as to avoid the communication between the trachea and esophagus caused by the poor seal between the head end of the laryngeal mask and the throat. , leading to gastric bloating or gastric reflux and aspiration.
  • the non-inflatable bladder has multiple sputum storage chambers, and the storage chambers are arranged at the front end of the outlet to stop sputum from entering the ventilation cavity from the outlet. Sputum, to avoid reflux of sputum to the outlet.
  • the non-inflatable laryngeal mask also includes a viewer, the head end of the viewer is a camera, the camera is constrained on the non-inflatable mask body, and is set near the outlet, which can avoid blind inspection And other problems and real-time observation of whether there is gastric reflux near the exit.
  • the air-free laryngeal mask also includes a drainage duct, which is arranged through the tube body, and the drainage duct has an upper suction port and a lower suction port, and the lower suction port is arranged in the cavity On the capsule, fluids such as sputum on the back of the laryngeal mask can be sucked.
  • the non-inflatable bladder is provided with multiple stop blocks at successive intervals from the extending direction, and the accommodating cavity is formed by two adjacent stop blocks.
  • the camera is connected to an external video player through wireless or wired.
  • the non-inflatable laryngeal mask also includes a camera pipe, the front end of the camera pipe is at least partly transparent to form a viewing window, and the size of the camera pipe allows the viewer to be plugged in and out, so that the camera can reach the viewing window observe.
  • the tube body has an internal channel extending from the proximal end to the distal end, and the remaining space after the internal channel accommodates the drainage tube and the imaging tube is the ventilation cavity.
  • the surfaces of the ventilation cavity and the pipe body are provided with lubricating layers.
  • the present invention has the following advantages: (1) The cuff made of soft material and the setting of skirt protrusions ensure the sealing performance between the laryngeal mask and the throat; (2) The cuff made of soft material (3) A camera is installed at the exit of the ventilation cavity to observe the placement of the laryngeal mask; (4) A storage cavity is set at the front end of the exit to prevent sputum from entering the ventilation through the exit (5) Set up a drainage tube to suck the liquid on the back of the laryngeal mask.
  • Fig. 1 is a schematic diagram of the overall structure of the present invention.
  • Fig. 2 is a schematic diagram of the ventral structure of the air-free laryngeal mask of the present invention.
  • Fig. 3 is a schematic diagram of the back structure of the air-free laryngeal mask of the present invention.
  • Tube body 2. Cuff; 3. Ventilation cavity; 4. Non-inflatable capsule; 5. Hollow capsule; 6. Outlet; Stop block; 9. Visualizer; 10. Camera; 11. Drainage pipe; 12. Upper suction port; 13. Lower suction port; 14. Camera pipe; 15. Visual window; 16. Video player; 17. Interface ; 18, opening; 19, opening.
  • an embodiment of the present invention provides an air-free laryngeal mask, which includes a tube body 1 and a cuff 2 formed at the distal end of the tube body 1.
  • the tube body and the cuff include but are not limited to integral molding, secondary Injection molding, assembly molding; tube body 1, which is made of soft materials, the tube body 1 defines a ventilation cavity 3 extending from the proximal end to the distal end, and the proximal side of the tube body 1 is provided with external equipment Connected interface 17, the distal end of the tube body 1 is connected to the cuff 2; the cuff 2, which is made of soft material, has an air-free capsule 4 on the abdomen and a hollow capsule 5 on the back.
  • the non-inflatable bag body 4 defines an outlet 6 communicating with the ventilation cavity; the head end of the cuff 2 is provided with a plurality of skirt protrusions 7, and by increasing the size of the cuff at the head end, the head end of the cuff and the head end of the cuff are increased.
  • the contact area at the throat is sealed. Compared with the overall inflation of the cuff to increase the contact area, this method can effectively avoid foreign body sensation and damage to the patient's throat.
  • the air-free laryngeal mask provided in this embodiment is made of soft material as a whole, which is softer and reduces the feeling of foreign body; at the same time, the cuff 2 is made of soft material, which can relieve the pressure of the cuff 2 on the throat to a certain extent. In addition, the cuff 2 is made of soft material to better adapt to the structure of the throat. At the same time, the skirt protrusion 7 is used to further strengthen the sealing effect, so as to avoid the inaccurate seal between the head end of the laryngeal mask and the throat. The trachea and esophagus communicate with each other, resulting in gas bloating or gastric reflux and aspiration.
  • the non-inflatable bag body 4 has multiple sputum storage chambers 8, and the storage chambers 8 are arranged at the front end of the outlet 6 to prevent sputum from entering the ventilator from the outlet 6.
  • the multi-level storage cavity 8 stops the sputum to prevent the sputum from flowing back to the outlet 6, and the doctor's operation is smoother.
  • the non-inflatable bladder 4 is provided with multiple stop blocks 81 sequentially spaced from the extending direction, and the storage chamber 8 is composed of two adjacent stop blocks 81 form.
  • the air-free laryngeal mask also includes a viewer 9, the head end of the viewer 9 is a camera 10, and the camera 10 is constrained on the air-free mask body, and It is set near exit 6 for real-time observation to avoid problems such as blind insertion.
  • the camera 10 is connected to the external video player 16 through wireless or wired.
  • the air-free laryngeal mask further includes a camera tube 14, the front end of the camera tube 14 is at least partly transparent to form a viewing window 15, and the size of the camera tube 14 allows the visualization device 9 to be inserted and removed. So that the camera head 10 can reach the viewing window 15 for observation.
  • the air-free laryngeal mask also includes a drainage duct 11, which can be inserted into a suction tube, and the drainage duct 11 is arranged through the tube body 1, and the drainage duct 11 has an upper suction port 12 and a lower Suction port 13, the lower suction port 13 is arranged on the cavity capsule body 5, and the cavity capsule body 5 is also provided with an opening 18 communicating with the lower suction port 13 and a storage area for storing sputum, etc.
  • the cavity communicated with the opening 18 can attract liquids such as sputum on the back of the laryngeal mask.
  • the tube body 1 has an internal channel extending from the proximal end to the distal end, and the remaining space behind the internal channel housing the drainage tube 11 and the imaging tube 14 is the ventilation cavity. 3. That is, the drainage pipe 11, the camera channel and the ventilation channel 3 are all set separately.
  • the ventilation cavity 3, the surface of the tube body 1, and the cuff are all provided with a lubricating layer for easy insertion.
  • the non-inflatable bag is provided with a material layer that can absorb sputum
  • the non-inflatable bag is provided with an opening 19, so that the material layer can be removed from the opening.
  • 19 Adsorption of sputum specifically, a material layer that can absorb sputum is inlaid in the non-inflatable bag or attached on the inner surface.
  • the material layer is made of cotton material.

Abstract

一种免充气喉罩，其包括管体（1）以及形成于管体（1）远端的罩囊（2），管体（1）采用软质材料制成，管体（1）限定出自近端向远端延伸的通气腔道（3），管体（1）的近侧设有与外接设备连接的接口（17），管体（1）的远端与罩囊（2）连接；罩囊（2）采用软质材料制成，具有位于腹面的免充气囊体（4）以及位于背面的空腔囊体（5），免充气囊体（4）限定出与通气腔道（3）连通的出口（6）；罩囊（2）头端设有多条裙边凸起（7）。该免充气喉罩利用软质材料制成的罩囊（2）以及裙边凸起（7）的设置，保证喉罩与咽喉部的密封性能。

Description

免充气喉罩 技术领域
本发明涉及医疗器械技术领域，具体涉及一种内窥镜套管。
 背景技术
喉罩通气是一种新型的声门上气道管理装置，在急救、麻醉中发挥着重要的角色。喉罩在上个世纪八十年代被发明出来后已被使用40多年，目前喉罩的类型有很多，但主要的都是需要对囊充气，使囊膨胀起来实现密封的效果。然而这类喉罩却存在着无法避免的缺陷：充气型喉罩，使用时需要充气抽气，置入前的抽气还需要对喉罩进行按压，使气囊保持一种梭型状态。手术前的准备工作过多，整个过程比较繁琐；如果气囊充入气量较多，会导致囊体较大较硬，密封效果减弱，增加咽喉部压力，长时间压迫会造成相关软组织损伤；若充气不足，囊体没有达到预期充大效果，又有可能导致密封不足。
一般喉罩前端与咽喉并没有密封的十分严密，这就有可能使得气管和食道间存在互通现象，可能导致气管内的气体通入到胃部，也有可能胃部的流体返流到气管。
另外，一般喉罩都是通过盲插置入人体的，在这过程中无法做到可视，这就需要医护人员有足够的喉罩置入经验，也比较考验医护人员的操作。
 技术问题
为了解决现有技术中的问题，本发明实施提供一种密封性能优的同时避免对咽喉部产生压迫感的免充气喉罩。
为了实现上述目的，本发明采用了以下的技术方案。
免充气喉罩，包括管体以及形成与管体远端的罩囊，管体，其采用软质材料制成，所述管体限定出自近端向远端延伸的通气腔道，所述管体的近侧设有与外接设备连接的接口，管体的远端与罩囊连接；罩囊，其采用软质材料制成，具有位于腹面的免充气囊体以及位于背面的空腔囊体，所述的免充气囊体限定出与通气腔连通的出口；所述的罩囊头端设有多条裙边凸起，通过在头端增加罩囊的尺寸，增加罩囊头端与咽喉处的接触面积，实现密封，相比较罩囊整体充气增大接触面积而言，此种方式，可有效避免异物感以及对患者咽喉处的损伤。
本技术方案中提供的免充气喉罩整体均采用软质材料制成，更加柔和，降低异物感；同时罩囊采用软质材料制成，可一定程度上缓解了罩囊对咽喉部的压迫感；另外，罩囊采用软质材料也更好的适配咽喉部的结构，同时利用裙边凸起进一步加强了密封效果，避免因喉罩头端与咽喉部密封不实，造成气管和食道互通，从而导致胃胀气或者胃液返流误吸等情况。
作为优选方案的，所述的免充气囊体上具有多档痰液收容腔，所述的收容腔被配置在出口前端，以止挡痰液自出口进入通气腔道中，多档收容腔止挡痰液，避免痰液返流至出口。
作为优选方案的，所述的免充气喉罩还包括可视器，所述的可视器头端为摄像头，所述摄像头被约束在免充气罩体上，且近出口设置，可避免盲查等问题出现以及实时观察出口附近有无胃液返流等情况。
作为优选方案的，所述的免充气喉罩还包括引流管道，所述引流管道贯穿管体设置，所述引流管道具有上吸引口以及下吸引口，所述的下吸引口被配置在空腔囊体之上，可对喉罩背部的痰液等液体进行吸引。
作为优选方案的，所述的免充气囊体自延伸方向设有依次间隔多档止挡块，所述的收容腔由相邻两块止挡块形成。
作为优选方案的，所述的摄像头通过无线或者有线与外接视频播放器连接。
作为优选方案的，所述的免充气喉罩还包括摄像管道，所述的摄像管道前端至少部分透明形成可视窗，所述摄像管道尺寸允许可视器插拔，以使得可摄像头能抵达可视窗观察。
作为优选方案的，所述管体具有自近端向远端延伸的内部通道，所述内部通道收容引流管道、摄像管道后的剩余空间即为通气腔道。
作为优选方案的，所述的通气腔道、管体表面均设有润滑层。
本发明与现有技术相比具有以下优点：（1）利用软质材料制成的罩囊以及裙边凸起的设置，保证喉罩与咽喉部的密封性能；（2）利用软质材料制成的免充气罩囊减轻对咽喉部的压迫感；（3）通气腔道出口处设有摄像头，可观察喉罩置入情况；（4）出口前端设置收容腔，避免痰液由出口进入通气腔道，避免误吸情况；（5）设置引流管对喉罩背部液体进行吸引。
 附图说明
图1本发明整体结构示意图。
图2为本发明免充气喉罩腹面结构示意图。
图3为本发明免充气喉罩背面结构示意图。
其中，1、管体；2、罩囊；3、通气腔道；4、免充气囊体；5、空腔囊体；6、出口；7、裙边凸起；8、收容腔；81、止挡块；9、可视器；10、摄像头；11、引流管道；12、上吸引口；13、下吸引口；14、摄像管道；15、可视窗；16、视频播放器；17、接口；18、开口；19、开孔。
 本发明的最佳实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语 “上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的方法或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”、“固持”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内段的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用以限定本发明。
参见图1至图3，本发明实施例提供一种免充气喉罩，包括管体1以及形成与管体1远端的罩囊2，管体和罩囊包括但不限于一体成型、二次注塑成型、组装成型；管体1，其采用软质材料制成，所述管体1限定出自近端向远端延伸的通气腔道3，所述管体1的近侧设有与外接设备连接的接口17，管体1的远端与罩囊2连接；罩囊2，其采用软质材料制成，具有位于腹面的免充气囊体4以及位于背面的空腔囊体5，所述的免充气囊体4限定出与通气腔连通的出口6；所述的罩囊2头端设有多条裙边凸起7，通过在头端增加罩囊的尺寸，增加罩囊头端与咽喉处的接触面积，实现密封，相比较罩囊整体充气增大接触面积而言，此种方式，可有效避免异物感以及对患者咽喉处的损伤。
本实施例中提供的免充气喉罩整体均采用软质材料制成，更加柔和，降低异物感；同时罩囊2采用软质材料制成，可一定程度上缓解了罩囊2对咽喉部的压迫感；另外，罩囊2采用软质材料也更好的适配咽喉部的结构，同时利用裙边凸起7进一步加强了密封效果，避免因喉罩头端与咽喉部密封不实，造成气管和食道互通，从而导致胃胀气或者胃液返流误吸等情况。
优选的，如图2所示，所述的免充气囊体4上具有多档痰液收容腔8，所述的收容腔8被配置在出口6前端，以止挡痰液自出口6进入通气腔道3中，多档收容腔8止挡痰液，避免痰液返流至出口6，且医生操作更为顺畅。
在一些具体实施例中，如图2所示，所述的免充气囊体4自延伸方向设有依次间隔多档止挡块81，所述的收容腔8由相邻两块止挡块81形成。
优选的，如图2所示，所述的免充气喉罩还包括可视器9，所述的可视器9头端为摄像头10，所述摄像头10被约束在免充气罩体上，且近出口6设置，用于实时观察，避免盲插等问题出现。
在一些具体实施例中，所述的摄像头10通过无线或者有线与外接视频播放器16连接。
在另一些具体实施例中，所述的免充气喉罩还包括摄像管道14，所述的摄像管道14前端至少部分透明形成可视窗15，所述摄像管道14尺寸允许可视器9插拔，以使得可摄像头10能抵达可视窗15观察。
优选的，如图3所示，所述的免充气喉罩还包括引流管道11，可插入吸引管，所述引流管道11贯穿管体1设置，所述引流管道11具有上吸引口12以及下吸引口13，所述的下吸引口13被配置在空腔囊体5之上，所述空腔囊体5上还设有与下吸引口13相通的开口18以及可用于储存痰液等的与开口18相通的腔道，可对喉罩背部的痰液等液体进行吸引。
优选的，如图1至图3所示，所述管体1具有自近端向远端延伸的内部通道，所述内部通道收容引流管道11、摄像管道14后的剩余空间即为通气腔道3，即引流管道11、摄像通道以及通气腔道3均分隔设置。
优选的，所述的通气腔道3、管体1表面、罩囊均设有润滑层，方便置入。
优选的，如图2所示，所述的免充气囊体上内设有可吸附痰液的材料层，且免充气囊体上设有开孔19，以使得能够材料层可从该开孔19吸附痰液；具体的，免充气囊体内镶嵌或者内表面贴附有可吸附痰液的材料层，优选的，该材料层采用棉质材料，应当指出，以上实施例仅是本发明的代表性例子。本发明还可以有许多变形。凡是依据本发明的实质对以上实施例所作的任何简单修改、等同变化与修饰，均应认为属于本发明的保护范围。

Claims (10)

  1. 免充气喉罩，其特征在于：包括管体以及形成与管体远端的罩囊，
    管体，其采用软质材料制成，所述管体限定出自近端向远端延伸的通气腔道，所述管体的近侧设有与外接设备连接的接口，管体的远端与罩囊连接；
    罩囊，其采用软质材料制成，具有位于腹面的免充气囊体以及位于背面的空腔囊体，所述的免充气囊体限定出与通气腔道连通的出口；所述的罩囊头端设有多条裙边凸起，以与咽喉处发生密封关系。
  2. 根据权利要求1所述的免充气喉罩，其特征在于，所述的免充气囊体上具有多档痰液收容腔，所述的收容腔被配置在出口前端，以止挡痰液自出口进入通气腔道中。
  3. 根据权利要求1所述的免充气喉罩，其特征在于，所述的免充气喉罩还包括可视器，所述的可视器头端为摄像头，所述摄像头被约束在免充气罩体上，且近出口设置。
  4. 根据权利要求1所述的免充气喉罩，其特征在于，所述的免充气喉罩还包括引流管道，所述引流管道贯穿管体设置，所述引流管道具有上吸引口以及下吸引口，所述的下吸引口被配置在空腔囊体之上。
  5. 根据权利要求2所述的免充气喉罩，其特征在于，所述的免充气囊体自延伸方向设有依次间隔多档止挡块，所述的收容腔由相邻两块止挡块形成。
  6. 根据权利要求3所述的免充气喉罩，其特征在于，所述的摄像头通过无线或者有线与外接视频播放器连接。
  7. 根据权利要求3所述的免充气喉罩，其特征在于，所述的免充气喉罩还包括摄像管道，所述的摄像管道前端至少部分透明形成可视窗，所述摄像管道尺寸允许可视器插拔，以使得可摄像头能抵达可视窗观察。
  8. 根据权利要求3或者权利要求4所述的免充气喉罩，其特征在于，所述管体具有自近端向远端延伸的内部通道，所述内部通道收容引流管道、摄像管道后的剩余空间即为通气腔道。
  9. 根据权利要求1所述的免充气喉罩，其特征在于，所述的通气腔道、管体表面均设有润滑层。
  10. 根据权利要求1所述的免充气喉罩，其特征在于，所述的免充气囊体上内设有可吸附痰液的材料层，且免充气囊体上设有开孔，以使得能够吸附痰液。
PCT/CN2022/099593 2021-12-29 2022-06-17 免充气喉罩 WO2023123895A1 (zh)

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