WO2014166136A1 - 多腔道一体式可插内窥镜的喉罩 - Google Patents

多腔道一体式可插内窥镜的喉罩 Download PDF

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Publication number
WO2014166136A1
WO2014166136A1 PCT/CN2013/075251 CN2013075251W WO2014166136A1 WO 2014166136 A1 WO2014166136 A1 WO 2014166136A1 CN 2013075251 W CN2013075251 W CN 2013075251W WO 2014166136 A1 WO2014166136 A1 WO 2014166136A1
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Prior art keywords
suction
laryngeal mask
endoscope
tube
cavity
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PCT/CN2013/075251
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English (en)
French (fr)
Inventor
张�成
Original Assignee
浙江曙光科技有限公司
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Publication of WO2014166136A1 publication Critical patent/WO2014166136A1/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
    • 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. 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
    • A61M16/0445—Special cuff forms, e.g. undulated

Definitions

  • the present invention relates to a cannula for a trachea, and more particularly to a laryngeal mask. Background technique
  • the laryngeal mask was a device that was invented and pioneered by Brain in 1983, using a transglottic ventilation.
  • the first one is the standard laryngeal mask airway, which is also the most commonly used laryngeal mask airway in the clinic. Its basic structure includes a cuff, a supervisor and
  • the inflation tube for inflating the sac is generally provided with a venting chamber in the main tube, and the venting hole is provided on the capsular, the venting chamber is connected with the venting hole, and the inflation tube is connected with the sac. In use, the sac is firstly drained by the inflation tube.
  • the laryngeal mask is mainly used to maintain the function of the respiratory tract and cannot be drained; the second type is a laryngeal mask with a drainage tube, due to the human trachea And the esophagus meets at the throat. After the throat is placed, the end of the sac is generally located at the entrance of the esophagus.
  • the laryngeal mask with the drainage tube is generally provided with a drainage hole at the end of the capsular, and another introduction Drainage tube communicating to the hole, so that the drainage tube can be in communication with the human body after implantation laryngeal mask esophagus, draining operation can be performed while building air duct; third is dedicated intubation guide the laryngeal mask airway.
  • a drainage type throat disclosed by the applicant in the prior application No. 201210299776.9, the application publication No. CN102784431A, and the application publication date being November 21, 2012. cover.
  • the patient often produces varying degrees of sputum or other secretions, which requires the insertion of a suction tube to attract and export it.
  • the current laryngeal masks generally do not have a special suction structure, so the operation of inserting the suction tube must be additionally added during the use of the laryngeal mask, or the suction is not timely or can not be fully sucked. Inserting the suction tube is not only inconvenient, inefficient, but may cause mucosal irritation or damage. If the attraction is not timely or insufficient, it will seriously hinder the normal ventilation of the laryngeal mask or hinder the patient's spontaneous breathing before waking up. In addition, during the sucking process, since the medium is sucked away, it is actually necessary to perform ventilation at the sucking position to decompress;
  • the existing laryngeal mask generally its inflatable tube is separate from the main tube, so that the laryngeal mask will be inconvenient during the insertion process, and at the same time
  • the vertical inflation tube also easily causes certain damage to the mucous membrane
  • the entire cannula path is an angle that is approximately right angled.
  • the cross-sectional shape of the main pipe is generally circular or irregular, as the applicant's previously filed application number is 201210299776.9, the application publication number is CN102784431A, and the application publication date is November 21, 2012.
  • a drainage type laryngeal mask disclosed in the Chinese invention patent application has a cross section of the main pipe which is irregular.
  • the main body of the laryngeal mask has a wide width in the direction of opening and closing of the oral cavity, and has a small opening degree or a narrow cavity.
  • the patient's orthodontic circular or irregular shape of the laryngeal mask has a large insertion resistance and is not easy to intubate. If the doctor uses a forceful cannula, it may cause mucosal damage;
  • the current general laryngeal mask, the connection between the main tube and the cap and the cap are linear.
  • the entire cannula path is an angle of approximately right angle through the oral cannula to the throat.
  • the end of the cuff is easy to withstand the upper palate, and it is not easy to intubate.
  • the doctor needs to extend the inlet cavity by hand to lift the cuff to assist the intubation, and the operation time is relatively speaking. It is not convenient to intubate at the same time; when the front end of the capsular is against the upper jaw, if the doctor uses the forceful intubation, it is easy to cause mucosal damage;
  • the general laryngeal mask is mainly used for airway ventilation.
  • the laryngeal mask of the existing intubable intubation tube generally has no guiding structure at the position of the vent hole of the cap.
  • the tracheal intubation is replaced, the tracheal intubation is difficult to be accurately inserted into the airway, and the operation is inconvenient. And it takes a long time for intubation. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a laryngeal mask of a multi-chamber integrated pluggable endoscope which can be used together with an endoscope and which can reduce intubation damage and is easy to use.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope comprises a main tube, a cap is connected to the end of the main tube, a vent hole is arranged on the cap, a ventilation channel is arranged in the main tube, and the ventilating channel and the pass are provided.
  • the air hole is connected, wherein the main tube is further provided with an endoscope channel and a charging and discharging air channel, the end of the cap is provided with an endoscope passage hole, the endoscope channel and the endoscope passage hole Connected, the deflation channel communicates with the capsular cavity of the capsular.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope of the present invention wherein the end of the main tube is bent toward a side where the vent hole is located.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope of the present invention wherein the main end has a bending angle of 9 ⁇ ⁇ 179 °.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope wherein the cross-sectional profile of the main tube is elliptical or oblong, and the long axis direction of the ellipse or oblong is opposite to the plane of the main tube vertical.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope wherein the main tube is further provided with a liquid absorbing channel, and the outer wall of the end of the main tube is provided with a plurality of suction grooves or/and a plurality of suction holes.
  • the suction groove or/and the suction hole are both in communication with the liquid absorption channel.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope of the present invention wherein the main tube is further provided with a decompression chamber, and the main tube wall is provided with a plurality of decompression holes in the vicinity of the suction groove or the suction hole.
  • the decompression holes are all in communication with the decompression channel.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope further includes a charging and discharging gas joint, and the charging and discharging gas joint comprises a connecting tube, an indicating airbag and a check valve, which are sequentially connected in series, the indicating airbag and the check valve A gas discharge valve is disposed on the connecting pipe, and the connecting pipe is in communication with the charging and discharging air passage.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope further comprises a suction joint tube, wherein the suction joint tube communicates with the liquid suction passage, and the suction force adjustment hole is provided on the tube wall of the suction joint tube, and the joint is attracted A plugging head is also connected to the tube.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope of the present invention wherein the suction joint tube and the connecting tube are of a unitary structure.
  • the laryngeal mask of the multi-chamber integrated pluggable endoscope of the present invention wherein the suction joint tube is connected with a nozzle back cover through a flexible connecting member.
  • the laryngeal mask of the multi-lumen integrated pluggable endoscope of the present invention is different from the prior art in that an endoscope channel and a charge are provided in the main body of the laryngeal mask of the multi-chamber integrated pluggable endoscope of the present invention.
  • the venting channel, the filling and venting channel communicates with the capsular cavity of the capsular, the end of the capsular is provided with an endoscope through hole, and the endoscope channel communicates with the endoscope through the hole, so that it can be integrated with the main tube
  • the filling and deflation chamber can be used to charge and deflate the sac, and the endoscope can also be used to pass the endoscope from the endoscope channel and the endoscope while using the laryngeal mask of the multi-chamber integrated plug-in endoscope of the present invention.
  • the endoscope is inserted into the esophagus to achieve the purpose of using the endoscope while using the laryngeal mask, and the endoscope insertion and passage path
  • the lumens are integrated with the main tube, and there is no branch structure, so the intubation is convenient, and the endoscope is inserted through the inside of the laryngeal mask instead of directly contacting the body tissue, so that the intubation damage can be reduced.
  • the cuff When the end of the main tube of the laryngeal mask of the multi-chamber integrated pluggable endoscope is bent toward the side where the vent hole is located, before the insertion of the laryngeal mask, the cuff is deflated to deform the cuff, The capsule is attached to the end of the main tube, so that the deformed one will also bend along with the bending section of the main tube, so that the non-linear structure with the bending can reduce the front end of the laryngeal mask and the upper body of the human body during intubation.
  • the bending angle of the main end of the laryngeal mask of the multi-lumen integrated pluggable endoscope of the present invention is 9 ⁇ ⁇ 179°, which is more suitable for the laryngeal
  • the shape of the tissue is convenient for intubation;
  • the cross-sectional profile of the main tube in the laryngeal mask of the multi-lumen integrated pluggable endoscope of the present invention is elliptical or oblong, and the long axis direction of the ellipse or the oblong is in the direction of the main tube
  • the sputum or other secretions can be attracted at any time from the position of the outer wall of the end of the main tube through the liquid absorbing channel integrated with the main tube, and the multi-channel integrated type of the present invention can be made without inserting the suction tube Insert
  • the laryngeal mask of the mirror has a suction function, and the intubation damage can be reduced because the suction tube is not inserted, and the pressure-reducing cavity is provided in the main body of the laryngeal mask of the multi-channel integrated plug-in endoscope of the present invention.
  • the pressure reducing channel and the pressure reducing hole can be used to deliver air to the sucking portion, thereby reducing back pressure during sucking and reducing mucous membrane irritation;
  • the suction joint tube is used for connecting the suction machine, and the suction adjustment hole on the suction joint tube can be used for the finger gap contact to sense the suction force of the suction machine, thereby facilitating adjustment.
  • the suction adjustment hole is blocked by the sealing head; when the suction joint tube and the connecting tube are integrated into the laryngeal mask of the multi-channel integrated plug-in endoscope of the present invention
  • the pipeline is more concentrated and easy to operate; when the nozzle joint is connected to the suction joint pipe through the flexible connecting member in the throat cover of the multi-channel integrated pluggable endoscope, the nozzle back cover can be used when the suction machine is not needed Will attract Nozzle tube is closed.
  • FIG. 1 is a rear perspective view showing the first embodiment of the laryngeal mask of the multi-chamber integrated pluggable endoscope of the present invention without showing a hidden cavity;
  • FIG. 2 is a rear perspective view showing the first embodiment of the laryngeal mask of the multi-chamber integrated pluggable endoscope showing the hidden cavity;
  • Figure 3 is a front elevational view of the first embodiment of the laryngeal mask of the multi-lumen integrated pluggable endoscope of the present invention
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 1;
  • FIG. 1 is a side elevational view of the first embodiment of the laryngeal mask of the multi-lumen integrated pluggable endoscope of the present invention with the right half pipe section and the components connected to the right half pipe section of the main pipe omitted.
  • the first embodiment of the laryngeal mask of the multi-chamber integrated pluggable endoscope of the present invention shown in FIG. 1 includes a main tube 1 having a cap 2 attached to the end of the main tube 1 and a cover 2 attached thereto.
  • the vent hole 21 (see FIG. 3), as shown in FIG. 2, the main pipe 1 is provided with a ventilating channel 11 and an endoscope channel 12, and the venting channel 11 communicates with the venting hole 21, and the end of the capsular 2 is provided therein.
  • the endoscope passes through the hole 22, and the endoscope channel 12 communicates with the endoscope through hole 22.
  • the main tube 1 is further provided with a charging and discharging air channel 13 and a liquid absorbing channel 14, and a gas filling and venting channel 13 and a capsular 2
  • the outer wall of the end of the main pipe 1 is provided with a suction groove 141 and five suction holes 142, and all the suction grooves 141 and the suction holes 142 are in communication with the liquid suction passage 14.
  • the charge and discharge gas passage 13 and the suction liquid suction passage 14 of the present embodiment are integrated with the main pipe 1 at the same time, and the liquid suction passage 14 can be attracted and attracted when necessary.
  • the machine is connected and aspirate.
  • the number of the suction grooves 141 may be at least one, and the number of the suction holes 142 may be at least one.
  • the suction groove and the suction hole may be used alone or in combination.
  • the sucking function is an additional function, so the liquid absorbing passage 14, the suction groove 141, and the suction hole 142 are not essential.
  • the main pipe 1 is further provided with a decompression chamber 15 in which a decompression hole 151 is disposed in the vicinity of the suction groove 141, and the decompression hole 151 is The decompression chamber 15 is connected. This allows air to be supplied to the aspiration section to reduce back pressure during aspiration.
  • the decompression chamber 15 and the decompression hole 151 are not essential in this embodiment.
  • the end of the main pipe 1 is bent toward the side where the vent hole 21 is located, and the bent portion 16 is shown in Fig. 5.
  • the bending angle of the end of the main pipe 1 is 150°, that is, the angle between the bending section 16 and the right pipe section of the bending section 16 is 150°, and the angle can be any angle between 91 ° and 179 °.
  • the cross-sectional profile of the main pipe 1 has an elliptical shape.
  • the long axis direction of the ellipse is perpendicular to the plane in which the main pipe 1 is located, that is, when the cuff 2 is placed in the human throat.
  • the long axis direction of the ellipse corresponds to the human lip line or the long axis direction of the ellipse is perpendicular to the direction of the human mouth opening and closing.
  • the width of the main pipe 1 in the direction in which the person's mouth is opened and closed is narrow.
  • the shape of the cross-sectional profile of the main pipe 1 may also be an oblong shape (the oblong shape is not shown in the drawing, similar to the shape of a playground track of a general school), that is, a combination of a rectangle and two semicircles The shape, the diameter of the two semicircles coincides with the two short sides of the rectangle, so that the cross section of the main pipe can be made narrower.
  • the embodiment further includes a suction joint pipe 3 , and the suction joint pipe 3 communicates with the liquid suction passage 14 , and the suction adjustment hole 31 is disposed on the pipe wall of the suction joint pipe 3 .
  • a plugging head 32 is also connected to the suction joint pipe 3.
  • the embodiment further includes an inflation joint 4 including a connecting tube 41, an indication airbag 42 and a check valve 43 which are sequentially connected in series, and indicates a connection line between the airbag 42 and the check valve 43.
  • deflation valve there is a deflation valve (the deflation valve is not shown in the figure, and its function is to give a venting outlet when deflation of the hood is required, and to block the venting outlet when deflation is not required, See the bleed valve in the patent application No. 201210299776.9, the connecting tube 41 and the charging and discharging The air passage 13 is connected.
  • the suction joint pipe 3 and the connecting pipe 41 are of a unitary structure.
  • a nozzle back cover 33 is attached to the suction joint pipe 3 via a wire 34 (the wire can be replaced by a soft plastic or other flexible connector).
  • This embodiment is similar to the existing laryngeal mask in use, first opening the deflation valve to deflate the capsular 2, and manually assisting the squeezing of the sac 2, closing the deflation valve again, and then holding the hood 2 from the hand 1
  • the patient's mouth is inserted into the throat, and then the inflator is inflated into the cuff 2 through the filling and deflation channel 13, and the cuff 2 is bulged and adhered to the laryngeal tissue, and the venting hole 21 of the cuff 2 is facing the human trachea.
  • the inlet, and the endoscope through the hole 22 is facing the entrance of the human esophagus.
  • the general aeration operation can be performed, and the endoscope can be inserted into the esophagus through the endoscope channel 12 and the endoscope passage hole 22, thereby achieving the effect of using the laryngeal mask together with the endoscope.
  • the nozzle back cover 33 is opened, the suction head of the suction machine is connected to the rear end nozzle of the suction joint pipe 3, and then the suction machine is started.
  • the finger gradually approaches or blocks the suction adjusting hole 31 at the position of the suction adjusting hole 31 to feel the attractive force, thereby adjusting the attractive force of the suction machine, and the suction adjusting hole 31 is blocked by the sealing head 32 after the adjustment is appropriate, and further
  • the suction operation is performed from the back end of the main pipe 1 by the suction machine through the liquid suction passage 14, the suction groove 141, and the suction hole 142.
  • the suction joint pipe 3 and the inflation joint 4 are not essential, and they mainly serve as a connection and an auxiliary function, irrespective of the technical problem to be solved by the present invention.

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Abstract

一种气管用插管，特别是涉及一种喉罩。其目的是为了提供一种能同时与内窥镜一起使用的、能够减少插管损伤、便于使用的多腔道一体式可插内窥镜的喉罩，所述多腔道一体式可插内窥镜的喉罩包括主管（1）、主管（1）的末端连接有罩囊（2），罩囊（2）上设有通气孔（21），主管（1）内设有通气腔道（11），通气腔道（11）与所述通气孔（21）连通，其中所述主管（1）内还设有内窥镜腔道（12）和充放气腔道（13），所述罩囊（2）的末端设有内窥镜通过孔（22），内窥镜腔道（12）与所述内窥镜通过孔（22）连通，充放气腔道（13）与所述罩囊（2）的囊腔连通。

Description

多腔道一体式可插内窥镜的喉罩
技术领域
本发明涉及一种气管用插管， 特别是涉及一种喉罩。 背景技术
喉罩是 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装置。 为了提 高喉罩的临床应用效果， 目前已有三种类型的喉罩： 第一种是标准型喉罩通气道， 它也是目 前临床最为常用的喉罩通气道， 其基本结构有罩囊、 主管和为罩囊充气的充气管， 主管内一 般设有通气腔， 罩囊上设有通气孔， 通气腔与通气孔连通， 充气管与罩囊连通， 在使用时先 由充气管抽干罩囊内的空气， 罩囊变瘪， 待将喉罩插入喉部之后再由充气管向罩囊内注入规 定量的空气从而使罩囊重新鼓起， 鼓起后的罩囊能够与人体的咽喉部位组织进行较好的贴合 而形成密封， 进而通气腔与人体气管连通， 这种喉罩主要用于维持呼吸道功能， 不能进行引 流操作； 第二种是带有引流管的喉罩， 由于人的气管和食管在喉部汇合， 在置入喉部后罩囊 的末端一般位于食管的入口处， 带有引流管的喉罩一般在罩囊的末端设置引流孔， 另设有引 流管连通至引流孔， 这样在置入喉罩后引流管能与人体食管连通， 从而能够在建立通气道的 同时进行引流操作； 第三种是引导气管插管的专用喉罩通气道。 关于引流型喉罩的结构， 可 以参见本申请人在之前提出的申请号为 201210299776.9、 申请公布号为 CN102784431A、 申 请公布日为 2012年 11月 21 日的中国发明专利申请公开的一种引流型喉罩。
尽管目前的喉罩相比最初发明的喉罩在功能上进行了一定的改进， 但是目前的喉罩功能 设计也并不完善， 在有些方面仍存在缺陷， 具体描述如下：
1、 喉罩在使用过程中， 病人往往会产生不同程度的痰液或其他分泌物， 这就需要插入吸 痰管而将其吸引导出。 目前的喉罩一般不带有专门吸痰的构造， 所以要么得在喉罩的使用过 程中额外增加插入吸痰管的操作步骤， 要么吸痰不及时或者不能充分吸痰。 插吸痰管不仅操 作不便、 效率低， 而且可能会造成粘膜刺激或损伤。 而若吸引不及时或不充分， 严重的会阻 碍喉罩正常通气或阻碍病人苏醒前的自主呼吸。 另外， 吸痰过程中， 由于介质被吸走， 实际 上也需要在吸痰位置处进行通气以减压；
2、 现有的喉罩， 一般其充气管与主管是分开的， 这样喉罩在插入过程会不方便， 同时分 立的充气管也容易对粘膜造成一定的损伤；
3、 类似于前述 2中的问题， 若将一个喉罩集结多个功能， 如吸痰、 减压、 弓 I流， 则需要 多个不同用途的管道分别进行吸痰、 减压、 引流， 多个不同用途的管道若不构成一体结构， 其不仅妨碍插入过程， 而且易造成损伤；
4、 当喉罩插管时， 通过口腔插管至喉部， 整个插管路径是一个近似直角的角度。 现有的 喉罩， 其主管横截面形状一般为圆形或不规则形状， 如本申请人在之前提出的申请号为 201210299776.9、 申请公布号为 CN102784431A、 申请公布日为 2012年 11月 21 日的中国发 明专利申请公开的一种引流型喉罩， 其主管横截面即是不规则的， 这种喉罩的主管在口腔开 合方向上的宽度较宽， 对于口腔张开度较小或腔道窄小的病人， 圆形或不规则形状主管的喉 罩插入阻力较大， 不易插管， 若医生用力插管的话可能造成粘膜损伤；
5、 目前一般的喉罩， 其主管与罩囊的连接部位和罩囊均呈直线型。 而当喉罩插管时， 通 过口腔插管至喉部， 整个插管路径是一个近似直角的角度。 插管时， 在罩囊通过上下颚过程 中， 罩囊末端很容易顶住上颚， 不易插管， 通常需要医生通过用手稍微伸进口腔托起罩囊以 辅助插管， 操作时间相对来说要长， 同时插管也不方便； 当罩囊前端顶住上颚时， 若医生用 力插管容易造成粘膜损伤；
6、 目前在使用引流型喉罩对病人进行反流物吸引时， 需要插入一根胃管或吸引管进入食 道， 但是如果病人反流物较多， 插胃管或吸引管不够及时， 也会导致反流误吸造成通气困难， 操作时间较长， 也会对患者造成损害；
7、 目前一般的喉罩主要用于气道通气， 没有设置专门的内窥镜通道， 因此有些需要内窥 镜手术的病人就不能选择使用喉罩进行手术， 而需要选择通过气管插管进行通气或者切开口 而插入内窥镜， 这样增加了病人的痛苦， 损伤也较大；
8、 目前现有的可插气管插管的喉罩， 其罩囊的通气孔位置处一般无导向结构， 在更换气 管插管时， 气管插管很难准确的插入至气道中， 操作不方便， 且耗费较长的插管时间。 发明内容
本发明要解决的技术问题是提供一种能同时与内窥镜一起使用的、 能够减少插管损伤、 便于使用的多腔道一体式可插内窥镜的喉罩。
本发明多腔道一体式可插内窥镜的喉罩， 包括主管， 主管的末端连接有罩囊， 罩囊上设 有通气孔， 主管内设有通气腔道， 通气腔道与所述通气孔连通， 其中所述主管内还设有内窥 镜腔道和充放气腔道， 所述罩囊的末端设有内窥镜通过孔， 内窥镜腔道与所述内窥镜通过孔 连通， 充放气腔道与所述罩囊的囊腔连通。
本发明多腔道一体式可插内窥镜的喉罩， 其中所述主管的末端向着所述通气孔所在的一 侧弯折。
本发明多腔道一体式可插内窥镜的喉罩， 其中所述主管末端的弯折角度为 9Γ ~179° 。 本发明多腔道一体式可插内窥镜的喉罩， 其中所述主管的横截面轮廓的形状为椭圆形或 长圆形， 所述椭圆或长圆的长轴方向与所述主管所在的平面垂直。
本发明多腔道一体式可插内窥镜的喉罩， 其中所述主管内还设有吸液腔道， 所述主管的 末端外壁上设有若干条吸引槽或 /和若干个吸引孔，所述吸引槽或 /和吸引孔均与所述吸液腔道 连通。
本发明多腔道一体式可插内窥镜的喉罩， 其中所述主管内还设有减压腔道， 主管的管壁 上在所述吸引槽或吸引孔的附近设有若干减压孔， 所述减压孔均与所述减压腔道连通。
本发明多腔道一体式可插内窥镜的喉罩， 其还包括充放气接头， 充放气接头包括依次串 联的连接管、 指示气囊和单向阀， 所述指示气囊和单向阀之间的连接管路上设有放气阀， 所 述连接管与所述充放气腔道连通。
本发明多腔道一体式可插内窥镜的喉罩， 其还包括吸引接头管， 吸引接头管与所述吸液 腔道连通， 吸引接头管的管壁上设有吸力调节孔， 吸引接头管上还连接有封堵头。
本发明多腔道一体式可插内窥镜的喉罩，其中所述吸引接头管与所述连接管为一体结构。 本发明多腔道一体式可插内窥镜的喉罩， 其中所述吸引接头管上通过柔性连接件连接有 管口后盖。
本发明多腔道一体式可插内窥镜的喉罩与现有技术不同之处在于本发明多腔道一体式可 插内窥镜的喉罩的主管内设有内窥镜腔道和充放气腔道， 充放气腔道与罩囊的囊腔连通， 罩 囊的末端设有内窥镜通过孔， 内窥镜腔道与内窥镜通过孔连通， 这样能够通过与主管一体的 充放气腔道对罩囊进行充放气， 也能够在使用本发明多腔道一体式可插内窥镜的喉罩的同时 将内窥镜从内窥镜腔道和内窥镜通过孔中穿过而将内窥镜插入食管内， 以达到使用喉罩时同 时使用内窥镜的目的， 由于起充放气作用的充放气腔道和起内窥镜插入通路作用的内窥镜腔 道均同主管为一体结构， 没有分支结构， 所以方便插管， 而插内窥镜时内窥镜是经喉罩内部 通过而不是直接与身体组织接触， 所以能够减少插管损伤。
本发明多腔道一体式可插内窥镜的喉罩中主管的末端向着通气孔所在的一侧弯折时， 在 插入喉罩前， 对罩囊放气使罩囊变瘪后， 由于罩囊连接在主管的末端， 所以变瘪后的也会随 着主管的弯折段弯折， 这样带有弯折的非直线型结构能够减少插管时喉罩前端与人体上颚的 相抵几率， 从而能够更容易将喉罩插入， 且减少插管损伤； 本发明多腔道一体式可插内窥镜 的喉罩中主管末端的弯折角度为 9Γ ~179° 时， 较符合喉部的组织形状， 方便插管； 本发明 多腔道一体式可插内窥镜的喉罩中主管的横截面轮廓的形状为椭圆形或长圆形， 椭圆或长圆 的长轴方向与主管所在的平面垂直时， 在插管时， 主管截面的短轴方向在在口腔的开合方向 上， 由于主管在口腔的开合方向上的宽度更窄， 所以可以减小插管时的阻力， 更适用于口腔 张开度较小或腔道窄小的病人； 本发明多腔道一体式可插内窥镜的喉罩中主管内设有吸液腔 道， 主管的末端外壁上设有若干条吸引槽或 /和若干个吸引孔时， 能够通过与主管一体的吸液 腔道从主管的末端外壁位置处随时吸引痰液或其它分泌物， 不必插入吸痰管而使得本发明多 腔道一体式可插内窥镜的喉罩具备吸痰功能， 且由于不必插吸痰管， 所以能够减少插管损伤； 本发明多腔道一体式可插内窥镜的喉罩中主管内设有减压腔道， 主管的管壁上设有若干减压 孔时， 可以通过减压腔道和减压孔向吸痰部位输气， 从而减小吸痰时的背压， 减小粘膜刺激； 本发明多腔道一体式可插内窥镜的喉罩中包括有吸引接头管时，吸引接头管用于连接吸引机， 吸引接头管上的吸力调节孔能够用于手指间隙接触从而感应吸引机的吸力大小， 从而方便调 节吸引力， 当吸引机的吸引力调整好后， 由封堵头将吸力调节孔封堵； 本发明多腔道一体式 可插内窥镜的喉罩中吸引接头管与连接管为一体结构时管线更集中， 便于操作； 本发明多腔 道一体式可插内窥镜的喉罩中吸引接头管上通过柔性连接件连接有管口后盖时， 不需要接吸 引机时可由管口后盖将吸引接头管的管口封闭。
下面结合附图对本发明多腔道一体式可插内窥镜的喉罩作进一步说明。 附图说明
图 1为本发明多腔道一体式可插内窥镜的喉罩第一个实施例未显示隐藏腔道时的背面视 图；
图 2 为本发明多腔道一体式可插内窥镜的喉罩第一个实施例显示隐藏腔道时的背面视 图；
图 3为本发明多腔道一体式可插内窥镜的喉罩第一个实施例的正面视图；
图 4为图 1中的 A-A剖面视图；
图 5为本发明多腔道一体式可插内窥镜的喉罩第一个实施例略去主管右半管段和与主管 右半管段相连的零部件之后的侧面视图。 具体实施方式 如图 1所示的本发明多腔道一体式可插内窥镜的喉罩第一个实施例，本实施例包括主管 1， 主管 1的末端连接有罩囊 2， 罩囊 2上设有通气孔 21 (参见图 3)， 如图 2所示， 主管 1内设 有通气腔道 11和内窥镜腔道 12， 通气腔道 11与通气孔 21连通， 罩囊 2的末端设有内窥镜 通过孔 22， 内窥镜腔道 12与内窥镜通过孔 22连通， 主管 1内还设有充放气腔道 13和吸液 腔道 14， 充放气腔道 13与罩囊 2的囊腔连通， 主管 1的末端外壁上设有一条吸引槽 141和 五个吸引孔 142， 所有吸引槽 141和吸引孔 142均与吸液腔道 14连通。 这样本实施例的起充 放气作用的充放气腔道 13和起吸引作用的吸液腔道 14就均与主管 1呈一体结构了， 同时可 以在需要时将吸液腔道 14与吸引机连通而吸液。 当然， 吸引槽 141的条数可以为至少一条， 吸引孔 142的个数可以为至少一个。 且吸引槽和吸引孔可以只使用其中一种， 也可以同时使 用。 本实施例中， 吸痰功能是附加的功能， 所以吸液腔道 14、 吸引槽 141和吸引孔 142并不 是必须的。
进一步地， 参见图 2和图 4， 本实施例中主管 1内还设有减压腔道 15， 主管的管壁上在 吸引槽 141的附近设有一个减压孔 151， 减压孔 151与减压腔道 15连通。 这样可以向吸液部 位供气以减小吸液时的背压。 本实施例中减压腔道 15和减压孔 151并不是必须的。
进一步地， 如图 5所示， 主管 1的末端向着通气孔 21所在的一侧弯折， 图 5中示出了弯 折段 16。 这样当罩囊 2放气变瘪时其形状也会像弯折段 16—样弯折。 本实施例中主管 1末 端的弯折角度为 150° ， 即弯折段 16与弯折段 16右边管段的夹角为 150° ， 该角度还可以为 91 ° 至 179° 之间的任意角度。
进一步地， 如图 4所示， 主管 1的横截面轮廓的形状为椭圆形， 参见图 5， 该椭圆的长 轴方向与主管 1所在的平面垂直， 也就是说当罩囊 2置入人体喉部后， 该椭圆的长轴方向与 人的嘴唇线对应或者说该椭圆的长轴方向与人的口腔开合方向垂直。 这样， 主管 1在人的口 腔开合方向上的宽度就比较窄。 另外， 主管 1的横截面轮廓的形状还可以为长圆形 （长圆形 在图中未示出，类似于一般学校的操场跑道的形状），即一个矩形与两个半圆形组合后的形状， 两个半圆的直径分别与矩形的两条短边重合， 这样同样能够达到主管横截面更狭长的作用。
进一步地， 参见图 1、 图 2和图 3， 本实施例还包括吸引接头管 3， 吸引接头管 3与吸液 腔道 14连通， 吸引接头管 3的管壁上设有吸力调节孔 31， 吸引接头管 3上还连接有封堵头 32。 如图 1所示， 本实施例还包括充气接头 4， 充气接头 4包括依次串联的连接管 41、 指示 气囊 42和单向阀 43， 指示气囊 42和单向阀 43之间的连接管路上设有放气阀 （放气阀在图 中未示出， 起其的作用是当需要对罩囊放气时给出一个放气出口， 当不需要放气时将该放气 出口堵住， 其可以参见申请号为 201210299776.9的专利申请中的放气阀）， 连接管 41与充放 气腔道 13连通。 本实施例中吸引接头管 3与连接管 41为一体结构。 吸引接头管 3上通过线 绳 34连接有管口后盖 33 (线绳可以由软塑料或者其它柔性连接件替代）。
本实施例在使用时与现有喉罩相似， 先打开放气阀对罩囊 2放气， 并用手辅助捏瘪罩囊 2， 将放气阀重新关上， 然后手持主管 1将罩囊 2从病人口腔插入喉部， 之后由充气装置经充 放气腔道 13向罩囊 2内充气， 罩囊 2鼓起并与喉部组织贴合， 此时罩囊 2的通气孔 21正对 人体气管的进口， 且内窥镜通过孔 22正对人体食管的进口。接着就即可以进行一般的通气操 作， 又能够将内窥镜经内窥镜腔道 12和内窥镜通过孔 22插入食管内， 达到喉罩与内窥镜一 起使用的效果。本实施例可以在需要吸引痰液或其它分泌物时（或者事先）将管口后盖 33打 开， 将吸引机的吸引头与吸引接头管 3的后端管口相连， 然后启动吸引机， 用手指在吸力调 节孔 31位置处逐渐接近或封堵吸力调节孔 31以感觉吸引力的大小， 从而调整吸引机的吸引 力， 在调整合适后由封堵头 32将吸力调节孔 31封堵， 进而由吸引机通过吸液腔道 14、 吸引 槽 141和吸引孔 142从主管 1末端背部进行吸引操作。
本实施例中， 吸引接头管 3和充气接头 4并不是必须的， 它们主要起连接和辅助作用， 与本发明要解决的技术问题无关。
以上所述的实施例仅仅是对本发明的优选实施方式进行描述， 并非对本发明的范围进行 限定， 在不脱离本发明设计精神的前提下， 本领域普通技术人员对本发明的技术方案作出的 各种变形和改进， 均应落入本发明权利要求书确定的保护范围内。

Claims

权 利 要 求 书
1、 一种多腔道一体式可插内窥镜的喉罩， 包括主管 （1)， 主管 （1) 的末端连接有罩囊 (2)， 罩囊 （2) 上设有通气孔 （21)， 主管 （1) 内设有通气腔道 （11)， 通气腔道 （11) 与 所述通气孔 （21)连通， 其特征在于： 所述主管 （1) 内还设有内窥镜腔道（12)和充放气腔 道（13)， 所述罩囊 （2) 的末端设有内窥镜通过孔 （22)， 内窥镜腔道 （12) 与所述内窥镜通 过孔 （22) 连通， 充放气腔道 （13) 与所述罩囊 （2) 的囊腔连通。
2、 根据权利要求 1所述的多腔道一体式可插内窥镜的喉罩， 其特征在于： 所述主管 （1) 的末端向着所述通气孔 （21) 所在的一侧弯折。
3、 根据权利要求 2所述的多腔道一体式可插内窥镜的喉罩， 其特征在于： 所述主管 （1) 末端的弯折角度为 9Γ ~179° 。
4、 根据权利要求 3所述的多腔道一体式可插内窥镜的喉罩， 其特征在于： 所述主管 （1) 的横截面轮廓的形状为椭圆形或长圆形， 所述椭圆或长圆的长轴方向与所述主管（1)所在的 平面垂直。
5、 根据权利要求 4所述的多腔道一体式可插内窥镜的喉罩， 其特征在于： 所述主管 （1) 内还设有吸液腔道 （14)， 所述主管 （1) 的末端外壁上设有若干条吸引槽 （141) 或 /和若干 个吸引孔 （142)， 所述吸引槽 （141) 或 /和吸引孔 （142) 均与所述吸液腔道 （14) 连通。
6、 根据权利要求 5所述的多腔道一体式可插内窥镜的喉罩， 其特征在于： 所述主管 （1) 内还设有减压腔道（15)， 主管的管壁上在所述吸引槽（141)或吸引孔 （142) 的附近设有若 干减压孔 （151)， 所述减压孔 （151) 均与所述减压腔道 （15) 连通。
7、 根据权利要求 6所述的多腔道一体式可插内窥镜的喉罩， 其特征在于： 还包括充放气 接头 （4)， 充放气接头 （4) 包括依次串联的连接管 （41)、 指示气囊 （42) 和单向阀 （43)， 所述指示气囊 （42) 和单向阀 （43) 之间的连接管路上设有放气阀， 所述连接管 （41) 与所 述充放气腔道 （13) 连通。
8、 根据权利要求 7所述的多腔道一体式可插内窥镜的喉罩， 其特征在于： 还包括吸引接 头管 （3)， 吸引接头管 （3) 与所述吸液腔道 （14) 连通， 吸引接头管 （3) 的管壁上设有吸 力调节孔 （31)， 吸引接头管 （3) 上还连接有封堵头 （32)。
9、 根据权利要求 8所述的多腔道一体式可插内窥镜的喉罩， 其特征在于： 所述吸引接头 管 （3) 与所述连接管 （41) 为一体结构。
10、 根据权利要求 9所述的多腔道一体式可插内窥镜的喉罩， 其特征在于： 所述吸引接 头管 （3) 上通过柔性连接件连接有管口后盖 （33λ
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