CN103203058A - Multiple-cavity integrated laryngeal mask capable of being inserted by endoscope - Google Patents

Multiple-cavity integrated laryngeal mask capable of being inserted by endoscope Download PDF

Info

Publication number
CN103203058A
CN103203058A CN 201310128829 CN201310128829A CN103203058A CN 103203058 A CN103203058 A CN 103203058A CN 201310128829 CN201310128829 CN 201310128829 CN 201310128829 A CN201310128829 A CN 201310128829A CN 103203058 A CN103203058 A CN 103203058A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
suction
endoscope
laryngeal mask
lumen
cavity
Prior art date
Application number
CN 201310128829
Other languages
Chinese (zh)
Inventor
张�成
Original Assignee
浙江曙光科技有限公司
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

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0486Multi-lumen tracheal tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0402Special features for tracheal tubes not otherwise provided for
    • A61M16/0409Special features for tracheal tubes not otherwise provided for with mean for closing the oesophagus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0402Special features for tracheal tubes not otherwise provided for
    • A61M16/0415Special features for tracheal tubes not otherwise provided for with access means to the stomach
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0434Cuffs
    • A61M16/0445Special cuff forms, e.g. undulated

Abstract

The invention discloses a multiple-cavity integrated laryngeal mask capable of being inserted by endoscope, relates to a cannula for the trachea, in particular to a laryngeal mask. The multiple-cavity integrated laryngeal mask has the advantages that the laryngeal mask can be used together with the endoscope, can reduce cannula damage and can be used conveniently. The multiple-cavity integrated laryngeal mask comprises a main tube (1), a mask bladder (2) is connected at the tail end of the main tube (1), an air through hole (21) is arranged on the mask bladder (2), a venting cavity channel (11) is arranged in the main tube (1), the venting cavity channel (11) is communicated with the vent hole (21), an endoscopic cavity channel (12) and an air discharging cavity channel (13) are arranged in the main tube (1), an endoscopic through hole (22) is arranged at the tail end of the mask bladder (2), the endoscopic cavity channel (12) is communicated with the endoscopic through hole (22), and the air discharging cavity channel (13) is communicated with a bladder cavity of the mask bladder (2).

Description

多腔道一体式可插内窥镜的喉罩 Integral multiple lumen of the endoscope can be inserted LMA

技术领域 FIELD

[0001] 本发明涉及一种气管用插管,特别是涉及一种喉罩。 [0001] The present invention relates to a tracheal cannula, in particular to a laryngeal mask.

背景技术 Background technique

[0002] 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。 [0002] Brain laryngeal mask 1983 is first and promote the use of the invention, an apparatus using acoustic ventilation door embodiment. 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 In order to improve the clinical effect of laryngeal mask, there are three types of Laryngeal Mask: The first is the standard laryngeal mask airway, it is currently the most commonly used clinical Laryngeal Mask Airway, its basic structure cuff, executives and the cuff is inflated inflatable tube is provided within the competence of general ventilation chamber provided with a vent, the vent hole communicating with the vent chamber, the cuff inflation tube communicates with the cuff, when inflated first by using the drain pipe cover capsule air, the cuff deflated, the laryngeal mask to be inserted into the throat after a predetermined amount of air is then injected by the inflator to the tube such that the cuff cap capsule re-swollen, the cuff can be swollen after the throat tissue of the human body for better fit to form a seal, in turn communicates with the breather chamber pipe body, which is mainly used to maintain the airway laryngeal mask functions, drainage can not operate; laryngeal mask with a second drainage tube due to a person's airway confluence throat and esophagus, larynx, after placement of the cuff is typically located at the entrance end of the esophagus, the laryngeal mask generally provided with a drainage tube drainage hole at the end of the cuff, and the other communicating with the drainage tube to the drainage hole ,such 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。 Esophagus drainage tube can be in communication with the laryngeal mask body after implantation, the drainage operation can be performed while building air duct; third is dedicated intubation guide the laryngeal mask airway. 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。 About Laryngeal Mask drainage structure, you can see the application number proposed by the applicant prior to 201,210,299,776.9, Application Publication No. CN102784431A, filed Application Publication discloses a drainage laryngeal China patent for the invention in 2012 of November 21 cover.

[0003] 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: [0003] Although the laryngeal mask LMA compared to the first invention will be functionally certain improvement, but the current design of the laryngeal mask function is not perfect, it is still deficient in some respects, is described as follows:

[0004] 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。 [0004] 1, the laryngeal mask during use, the patient will often produce different degrees of mucus or other secretions, which requires the suction tube is inserted to suction export. 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。 Currently laryngeal mask generally do not have specially configured suction, so that either the step of inserting the suction tube have to operate an additional increase in the use of the laryngeal mask, the suction or suction is not timely or not sufficiently. 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。 Suction tube insertion operation not only inconvenient, inefficient, and may cause irritation or damage. 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。 And if not timely or does not attract sufficient, severe laryngeal mask will hinder or impede the normal ventilation spontaneous breathing before the patient regained consciousness. 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; Further, during the suction, since the medium is sucked away, actually require venting under reduced pressure at a suction position;

[0005] 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; [0005] 2, conventional laryngeal mask, with the main inflation tube which typically are separate, so that during insertion of the laryngeal mask be inconvenient, while the separate inflatable tubes are likely to cause some damage to the mucous membrane;

[0006] 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、引流,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; [0006] 3, similar to the problem 2, when a laryngeal mask assembly a plurality of functions, such as suction, pressure, drainage, it is necessary to use a plurality of different pipes were suction under reduced pressure, drainage, if a plurality of different uses of conduit integrally formed structure, not only interfere with the insertion process, and easily damaged;

[0007] 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。 [0007] 4, when the laryngeal mask cannula, the cannula through the mouth into the throat, the entire path of the cannula is approximately a right angle. 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; Conventional laryngeal mask, which is in charge of generally circular cross-sectional shape or irregular shape, such as the applicant of the present application number is 201210299776.9 previously proposed, Application Publication No. CN102784431A, Application Publication date of November 21, 2012 of Chinese Patent application discloses a drainage laryngeal mask, i.e., which is in charge of irregular cross-section, the width of the charge of such a laryngeal mask in a wide mouth opening and closing direction, the opening degree of the oral cavity for a smaller or narrow lumen patients, circular or irregular shape laryngeal mask competent insertion resistance larger, difficult intubation, if the doctor, then the force of the cannula may cause mucosal damage;

[0008] 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。 [0008] 5, general laryngeal mask, which is in charge of the connection portion of the cuff and the cuff showed linear. 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。 When the laryngeal mask cannula, the cannula through the mouth into the throat, the entire path of the cannula is approximately a right angle. 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; Intubation, the cuff through the upper jaw during the very end of the cuff against the palate readily, easily cannula, typically slightly extends into the oral cavity requires a doctor hand hold the cuff to aid in intubation, the operating time is relatively longer, while the cannula is not convenient; when the cuff against the front end of the upper jaw, the force if the doctor likely to cause mucosal damage the cannula;

[0009] 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; [0009] 6, is currently in use drainage Laryngeal Mask the patient reflux was suction, necessary to insert a suction tube into the esophagus or stomach, but if the patient was more reflux, gastric intubation, or not timely enough suction tube , can lead to regurgitation and aspiration vent cause difficulties, long operating time, also cause damage to the patient;

[0010] 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; [0010] 7, the current is mainly used for general laryngeal mask airway, no dedicated channel of the endoscope, the endoscope so some patients required surgery can not choose LMA surgery, selected by required endotracheal cutting the vent tube or the endoscope is inserted into the opening, thus increasing the suffering of the patients, damage is large;

[0011] 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。 [0011] 8, currently available endotracheal tube may be inserted laryngeal mask, the position at which the vent hole in the cuff generally no guide structure, when replacing the endotracheal tube intubation difficult to accurately inserted into the airway, convenient operation, and takes a long intubation time.

发明内容 SUMMARY

[0012] 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。 [0012] The present invention is to solve the technical problem is to provide a use with an endoscope, it is possible to reduce damage to the cannula, to facilitate the use of multi-cavity integral pluggable endoscopic laryngeal mask.

[0013] 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。 [0013] The present invention is a multi-cavity integral laryngeal mask the endoscope can be inserted, comprising, in charge director is connected to the end of the cuff, the cuff is provided with a vent, the vent cavity equipped with directors, and vent lumen communicating said orifice, wherein said supervisor further provided with an endoscope lumen and the inflation and deflation lumen, the tip of the cuff is provided with an endoscope through the aperture, the endoscope and the endoscopic lumen communicating through the aperture mirror, inflation-deflation lumen communicating with the cavity of the cuff.

[0014] 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。 [0014] The present invention is a multi-cavity integral pluggable endoscope laryngeal mask, wherein the end of the main pipe toward a side of the vent hole is located is bent.

[0015] 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91°〜179°. [0015] The present invention is a multi-cavity integral pluggable endoscope laryngeal mask, wherein the end of the main bending angle of 91 ° ~179 °.

[0016] 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。 [0016] The present invention is a multi-cavity integral laryngeal mask the endoscope can be inserted, wherein the shape of the cross-sectional profile of said main elliptical or oblong, oval or elliptical in the longitudinal direction of the competent located perpendicular to the plane.

[0017] 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。 [0017] The present invention is a multi-cavity integral laryngeal mask the endoscope can be inserted, wherein said supervisor further provided with liquid-absorbent cavity, the outer wall of the main pipe ends provided with a plurality of suction grooves or / and several suction holes, the suction channel and / or suction holes are in communication with the liquid suction lumen.

[0018] 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。 [0018] The present invention is a multi-cavity integral laryngeal mask the endoscope can be inserted, wherein a reduced pressure within the cavity is also in charge, the charge of the wall has a plurality of grooves in the vicinity of said suction holes or suction decompression hole, each hole of the pressure passage communicating with said pressure chamber.

[0019] 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。 [0019] The present invention is a multi-cavity integral laryngeal mask the endoscope can be inserted, further comprising a linker inflation and deflation, inflation and deflation comprises a joint tube connected in series, and a check valve indicating the airbag, and the airbag indication connection line between the check valve is provided with a purge valve, the connecting tube and the inflation-deflation lumen communicating.

[0020] 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。 [0020] The present invention is a multi-cavity integral laryngeal mask the endoscope can be inserted, further comprising a suction joint pipe, suction tube and the joint suction passage communicating the liquid chamber, is provided with suction holes on the wall of the suction regulating joint pipe , the suction tube further connected to a joint closure head.

[0021] 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。 [0021] The present invention is a multi-cavity integral laryngeal mask the endoscope can be inserted, wherein the suction pipe and the connection pipe joint as an integral structure.

[0022] 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。 [0022] The present invention is a multi-cavity integral laryngeal mask the endoscope can be inserted, which is connected by a flexible tube member connected to the suction joint pipe opening on the back cover.

[0023] 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。 [0023] The present invention is a multi-cavity integral pluggable endoscope laryngeal mask of the prior art differ in that the directors of the present invention features multi-cavity integral endoscope can be inserted LMA endoscope lumen charge air channel and the discharge cavity, inflation-deflation lumen communicating with the cavity of the cuff, the cuff end of the endoscope is provided with through holes, the endoscope lumen in communication with the endoscope through the hole, and this through competent integral inflation and deflation of the cuff lumen for inflation and deflation, the endoscope can be from the endoscope and the endoscopic cavity while using the multi-lumen plug of the present invention can be integrated endoscope LMA in the mirror through the hole and an endoscope is inserted through the esophagus, in order to achieve simultaneously when using an endoscope laryngeal mask, since the effect from the inflation-deflation lumen and the inflation and deflation of the endoscope insertion path from acting the endoscope lumen is in charge are the same integral structure having no branched structure, it is convenient cannula, while the endoscope is inserted through the endoscope inside the laryngeal mask in direct contact with body tissue, rather than through, the cannula can be reduced damage .

[0024] 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91°〜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; [0024] The present invention is a multi-cavity integral plug can be in charge of the endoscope laryngeal mask is bent toward the side end of the vent hole is located, before inserting the laryngeal mask, the cuff on deflation so that the deflated cuff , due to the cuff attached to the end of the supervisor, it will also become deflated as the head of the bent section is bent with such a non-linear bent configuration can reduce the intubating laryngeal mask against the front end of the upper jaw and the body probability, can be more easily inserted into the laryngeal mask, cannula and reduces damage; multi-lumen when the bending angle of the present invention can be integrated in the insertion of the endoscope competent laryngeal mask end is 91 ° ~179 °, more in line with the throat shape of the tissue section, conveniently the cannula; shape cross-sectional profile of the present invention is a multi-cavity integral plug can be in charge of the endoscope laryngeal mask is elliptical or oblong, elliptical, or oval with the long axis direction supervisor when the vertical plane, when the cannula, the opening and closing direction in the oral cavity, since the narrower width of the opening and closing direction of the supervisor of the oral cavity, it is possible to reduce the resistance when the minor axis direction of the sectional cannula, and more for smaller oral cavity or narrow opening of a patient; 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 The present invention is a multi-cavity integral laryngeal mask can be inserted in the endoscope equipped with the liquid-absorbent competent cavity, the outer end wall is provided with several pieces of competent suction grooves or / and a plurality of the suction holes, can be integrated by the competent the liquid suction cavity from the outer wall at the terminal position of suction head of sputum or other secretions at any time, without there being such that the multi-lumen suction tube of the present invention is an integral channel of the endoscope can be inserted laryngeal mask includes a suction function, and since when multi-cavity integral present invention can be inserted in charge of the endoscope equipped with laryngeal mask pressure cavity, it defines a plurality of vacuum holes on the wall managers; necessarily inserted suction tube, the cannula can be reduced damage , gas delivery may be through a lumen and a reduced pressure to the reduced pressure suction hole portions, thereby reducing the back pressure of suction, to reduce the irritation; multi-cavity integral present invention can be inserted in the endoscope laryngeal mask comprising when the suction pipe with a joint, for connecting the suction joint pipe suction device, the suction regulating suction hole of the connector pipe can be used for contacting the finger thereby inducing suction gap suction machine size, to facilitate adjustment attraction, attraction when the suction machine adjust after plugging the suction head 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。 Adjusting hole blocking force; multi-cavity integral present invention can be inserted in the endoscope laryngeal mask suction joint pipe when the connecting pipe is more focused line integral structure, easy to operate; multi-cavity integral present invention can be inserted within endoscope mirror laryngeal mask when the spout cover is connected, via a flexible connecting member need not contact the suction pipe joint cover by the suction nozzle orifice is closed the suction joint pipe unit.

[0025] 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。 [0025] The following drawings multi-cavity integral present invention can be inserted endoscope is further described in conjunction with the laryngeal mask.

附图说明 BRIEF DESCRIPTION

[0026] 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不隐藏腔道时的背面视图;[0027] 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; A unitary first embodiment of the endoscope can be inserted LMA embodiment is not hidden back side view of the multi-lumen lumen is not significant [0026] Figure 1 of the present invention; unitary multi-cavity [0027] of the present invention, FIG. 2 the endoscope can be inserted in a first embodiment of the laryngeal mask back side view of the display hidden cavity;

[0028] 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; Pluggable integrated endoscopic laryngeal mask front view of a first embodiment of the multi-lumen embodiment [0028] FIG. 3 of the present invention;

[0029] 图4为图1中的AA剖面视图; [0029] FIG. 4 is a cross-sectional view AA of Figure 1;

[0030] 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。 A unitary first embodiment of the endoscope can be inserted LMA embodiment is omitted competent right side view after the pipe section and the pipe section parts are connected with the main right channel of the multi-lumen [0030] FIG. 5 of the present invention.

具体实施方式 detailed description

[0031] 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I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I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I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I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。 Multi-cavity according to the present invention shown in [0031] FIG. 1 a first embodiment of an integral of the endoscope can be inserted laryngeal mask embodiment, the present embodiment includes a main pipe 1, the end of charge of I 2 is connected to the cuff, the cuff 2 the vent hole 21 is provided (see FIG. 3), shown in Figure 2, equipped with competent I vent lumen 11 and the lumen of the endoscope 12, vent 11 and vent lumen 21 in communication, the end of the cuff 2 the endoscope is provided with through holes 22, the endoscope lumen 12 in communication with the endoscope through the hole 22, is also within the competence of I inflation-deflation lumen 13 and aspiration lumen 14, inflation-deflation lumen 13 and the cavity communicates cuff 2, the end wall is provided with an outer competent I, all the suction grooves 141 communicate with a suction slot and five suction holes 142 and suction holes 141 and 142 are liquid suction cavity 14. 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I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。 Since such the present embodiment is inflated and deflated effect inflation and deflation lumen 13 and play a suction effect liquid suction cavity 14 to have the main pipe I in an integral structure, and while the liquid suction cavity 14 when needed with suction machine communication while pipetting. 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。 Of course, the number of suction grooves 141 may be at least one, the number of suction holes 142 may be at least one. 且吸引槽和吸引孔可以只使用其中一种,也可以同时使用。 And suction holes and suction grooves may use only one of these may be used simultaneously. 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。 In this embodiment, suction function is an additional function, so the absorbent cavity 14, suction grooves 141 and the suction hole 142 is not necessary.

[0032] 进一步地,参见图2和图4,本实施例中主管I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。 [0032] Further, referring to FIGS. 2 and 4, the present embodiment also has a charge of a reduced pressure within the cavity I 15, a decompression hole 151 is provided in the vicinity of the suction grooves 141 of the wall charge of the reduced pressure hole 151 in communication with the pressure lumen 15. 这样可以向吸液部位供气以减小吸液时的背压。 This allows to supply gas to the absorbent to reduce the back pressure portion of the absorbent. 本实施例中减压腔道15和减压孔151并不是必须的。 Examples reduced pressure bore 15 and channel 151 of the present embodiment is not necessary.

[0033] 进一步地,如图5所示,主管I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。 [0033] Further, as shown in FIG. 5, toward the end of charge of I where the side vent 21 is folded, FIG. 5 shows a bending section 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。 2 such that when the cuff when deflated deflated shape will be like the bent section is bent like 16-. 本实施例中主管I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。 In this embodiment the bending angle of the end of charge of I 150 °, i.e. the angle between the bent section and the bending section 16 of the pipe section 16 of the right 150 °, the angle may be any angle between 91 ° to 179 °.

[0034] 进一步地,如图4所示,主管I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I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。 [0034] Further, as shown, the shape of the cross-sectional profile of the charge of elliptical I is 4, 5, the plane perpendicular to the longitudinal direction I of the ellipse where the director, that is set when the cuff 2 after the throat into the body, the direction of the major axis of the ellipse and the lips of the person corresponding to the line direction of the major axis of the ellipse or the human mouth opening and closing direction orthogonal. 这样,主管I在人的口腔开合方向上的宽度就比较窄。 Thus, the width I of the oral cavity competent opening and closing direction of the person is relatively narrow. 另外,主管I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。 Further, the shape of the cross-sectional profile of the head of I may also be oval (oblong not shown in the figures, a shape similar to the general school playground runway), i.e., a combination of the rectangle with two semicircular shape, the diameter of two semicircle coinciding respectively two short sides of the rectangle, so that the same can achieve a more elongated cross-section in charge effects.

[0035] 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。 [0035] Further, referring to FIGS. 1, 2 and 3, the present embodiment further includes a suction pipe joint 3, 3 in communication with the suction pipe joint liquid suction lumen 14, a suction pipe is provided with adjustable suction joint 3 on the tube wall hole 31, the joint suction pipe 32 is also connected to the head block 3. 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。 1, the present embodiment further includes a pneumatic fitting 4, the inflator 41 includes a tube joint 4 is connected in series, and the pilot balloon 42 and a check valve 43, the pilot balloon 42 and a check valve provided between the connecting pipeline 43 there bleed valve (purge valve, not shown in the drawings, which plays a given role is required when the discharge gas outlet of the cuff when deflated, the deflated when not required to block the discharge gas outlet, which application can be found in Patent application No. 201210299776.9 of the purge valve), the connecting pipe 41 in communication with the inflation-deflation lumen 13. 本实施例中吸引接头管3与连接管41为一体结构。 3 and integral structure of the connecting tube 41 of the present embodiment suction joint pipe embodiment. 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)。 Suction joint pipe string 3 by opening the rear cover 34 is connected with a tube 33 (the wire may be replaced by a soft plastic or other flexible connections).

[0036] 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I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。 [0036] The present embodiment is similar when using the conventional laryngeal mask hit open valve 2 on the cuff deflated, the cuff deflated and auxiliary kneaded 2, the discharge valve is closed again by hand, then in charge of holding the cover I the balloon 2 is inserted into the throat from the patient's mouth, then the inflator via inflation-deflation lumen 13 to inflate the bladder within the housing 2, with the cuff 2 and swollen throat tissue bonded, the vent hole 21 at this time the cuff 2 is positive imported human trachea, and the endoscope being imported through hole 22 on human esophagus. 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。 I.e., then it may be a general ventilation operation, the endoscope and the endoscope through the lumen 12 and the endoscope can be inserted through the aperture 22 in the esophagus, to achieve the effect laryngeal mask for use with an endoscope. 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I末端背部进行吸引操作。 The present embodiment may (or advance) the mouthpiece cover 33 is opened when desired suction of sputum or other secretions, suction device connected to the rear end of the suction head and the suction nozzle 3 of the adapter tube, and then start the suction device, with adjusting the suction finger hole 31 at a position approaching or plugging the suction holes 31 to adjust the size of the attractive sensation, appeal to adjust the suction machine, after adjustment by the sealing head 32 to a suitable suction adjustment hole block 31, and further by the suction device through the suction lumen 14, suction grooves 141 and the suction hole 142 for the suction operation from the main terminal I back.

[0037] 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。 [0037] In this embodiment, suction joint pipe joint 3 and the inflator 4 is not necessary, since they are connected to the main and auxiliary effect, irrespective of the technical problem to be solved by the present invention.

[0038] 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。 Example [0038] The above are merely preferred embodiments of the present invention will be described, not the scope of the present invention are defined, those of ordinary skill in the art to make technical solution of the present invention without departing from the spirit of the design of the present invention. various changes and modifications shall fall within the claims of the invention within the scope of protection determined.

Claims (10)

  1. 1.一种多腔道一体式可插内窥镜的喉罩,包括主管(1),主管(I)的末端连接有罩囊(2),罩囊(2)上设有通气孔(21),主管(I)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(I)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。 A multi-cavity integral pluggable endoscopic laryngeal mask, comprising a pipe (1), in charge of the end (I) is connected to the cuff (2), the cuff (2) is provided with vent holes (21 ), director (I) equipped with vent lumen (11), the vent cavity (11) in communication with said vent hole (21), characterized in that: said cavity further provided with an endoscope director (I) channel (12) and the inflation-deflation lumen (13), said cuff (2) is provided with an end of the endoscope through the aperture (22), the endoscope cavity (12) and the endoscope through the aperture (22) communicating inflation-deflation lumen (13) and the cuff (2) communicates cysts.
  2. 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(I)的末端向着所述通气孔(21)所在的一侧弯折。 The multi-lumen of the endoscope 1 integrally pluggable laryngeal mask as claimed in claim, wherein: said main terminal (I) toward one side of the vent hole (21) is located is bent.
  3. 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(I)末端的弯折角度为91°〜179°。 The multi-lumen of the endoscope 2 can be inserted integrally laryngeal mask as claimed in claim, wherein: said main (I) the end of the bending angle of 91 ° ~179 °.
  4. 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(I)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(I)所在的平面垂直。 The multi-lumen of the endoscope 3 pluggable integral laryngeal mask as claimed in claim, wherein: said cross-sectional profile shape director (I) is elliptical or oval, the oval or a plane perpendicular to the long axis direction of the director (I) where the oblong.
  5. 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(I)内还设有吸液腔道(14),所述主管(I)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。 The multi-lumen 4 of the insertion of the endoscope can be integral laryngeal mask as claimed in claim, wherein: said supervisor (I) also has a suction liquid chamber channel (14), the director (I ) end of the outer wall section has a plurality of suction grooves (141) or / and a plurality of suction holes (142), said suction slot (141) and / or suction hole (142) are connected with the liquid suction lumen (14 ) communication.
  6. 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(I)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。 The multi-lumen 5 of the endoscope can be inserted integral laryngeal mask as claimed in claim, wherein: said supervisor (I) is also provided with a reduced pressure cavity (15), the wall charge of the a plurality of vacuum holes (151) in the vicinity of the suction slot (141) or suction hole (142) of the decompression hole (151) are connected with the pressure lumen (15) in communication.
  7. 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。 The multi-lumen of the endoscope 6 inserted unitized laryngeal mask as claimed in claim, characterized in that: further comprising a charge-discharge gas fitting (4), charge and discharge gas fitting (4) comprises a connection in series of the pipe (41), the pilot balloon (42) and the check valve (43), indicating the connection line between the airbag (42) and the check valve (43) is provided with a purge valve, said connecting pipe (41) discharge and fill the cavity (13) in communication.
  8. 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)。 According to claim 7, said multi-cavity integral pluggable endoscopic laryngeal mask, characterized by: further comprising a suction connection pipe (3), suction pipe joint (3) and the liquid suction lumen ( 14) communicates, suction pipe joint (3) is provided with a suction regulating aperture wall (31), the suction pipe joint (3) is further connected with a sealing head (32).
  9. 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。 The multi-lumen of the endoscope 8 integral pluggable laryngeal mask as claimed in claim, characterized in that: said suction tube connection (3) and the connecting tube (41) as an integral structure.
  10. 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(33)。 10. The multi lumen of the endoscope 9 integral pluggable laryngeal mask as claimed in claim, characterized in that: said suction tube connection (3) is connected by a flexible connecting member spout cover (33).
CN 201310128829 2013-04-12 2013-04-12 Multiple-cavity integrated laryngeal mask capable of being inserted by endoscope CN103203058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201310128829 CN103203058A (en) 2013-04-12 2013-04-12 Multiple-cavity integrated laryngeal mask capable of being inserted by endoscope

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201310128829 CN103203058A (en) 2013-04-12 2013-04-12 Multiple-cavity integrated laryngeal mask capable of being inserted by endoscope
PCT/CN2013/075251 WO2014166136A1 (en) 2013-04-12 2013-05-07 Multi-lumen single-body laryngeal mask allowing endoscope insertion

Publications (1)

Publication Number Publication Date
CN103203058A true true CN103203058A (en) 2013-07-17

Family

ID=48750600

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201310128829 CN103203058A (en) 2013-04-12 2013-04-12 Multiple-cavity integrated laryngeal mask capable of being inserted by endoscope

Country Status (2)

Country Link
CN (1) CN103203058A (en)
WO (1) WO2014166136A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104307078A (en) * 2014-10-20 2015-01-28 海盐康源医疗器械有限公司 Non-pneumatic laryngeal mask with imbibition function
CN105498061A (en) * 2016-01-25 2016-04-20 高宏 Laryngeal mask capable of sucking sputum
CN106178209A (en) * 2016-08-05 2016-12-07 罗强 Laryngeal mask air breather with video transmission function
CN106413787A (en) * 2014-02-10 2017-02-15 R·C·怀特 An airway management device and method of manufacture
WO2017080347A1 (en) * 2015-11-09 2017-05-18 汤立 Laryngeal mask with multiple pipe cavities

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201263829Y (en) * 2008-08-25 2009-07-01 天津美迪斯医疗用品有限公司 Monotube multi-cavity type ProSeal laryngeal mask airway
CN201271420Y (en) * 2008-08-25 2009-07-15 凯 张 Phlegm-absorbing type throat cover
CN102784431A (en) * 2012-08-22 2012-11-21 浙江曙光科技有限公司 Drainage laryngeal mask
CN102921083A (en) * 2012-11-14 2013-02-13 邹德伟 Double-balloon laryngeal mask airway for gastroenterological endoscope examination

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201263829Y (en) * 2008-08-25 2009-07-01 天津美迪斯医疗用品有限公司 Monotube multi-cavity type ProSeal laryngeal mask airway
CN201271420Y (en) * 2008-08-25 2009-07-15 凯 张 Phlegm-absorbing type throat cover
CN102784431A (en) * 2012-08-22 2012-11-21 浙江曙光科技有限公司 Drainage laryngeal mask
CN102921083A (en) * 2012-11-14 2013-02-13 邹德伟 Double-balloon laryngeal mask airway for gastroenterological endoscope examination

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106413787A (en) * 2014-02-10 2017-02-15 R·C·怀特 An airway management device and method of manufacture
CN104307078A (en) * 2014-10-20 2015-01-28 海盐康源医疗器械有限公司 Non-pneumatic laryngeal mask with imbibition function
WO2017080347A1 (en) * 2015-11-09 2017-05-18 汤立 Laryngeal mask with multiple pipe cavities
CN105498061A (en) * 2016-01-25 2016-04-20 高宏 Laryngeal mask capable of sucking sputum
CN106178209A (en) * 2016-08-05 2016-12-07 罗强 Laryngeal mask air breather with video transmission function

Also Published As

Publication number Publication date Type
WO2014166136A1 (en) 2014-10-16 application

Similar Documents

Publication Publication Date Title
US6439232B1 (en) Laryngeal mask airway device
US4688568A (en) Respiratory tube or airway
US4041936A (en) Bronchoscopy tube
US6196224B1 (en) Perilaryngeal oral airway
US6386199B1 (en) Perilaryngeal oral airway
US20020112728A1 (en) Laryngeal mask assemblies
US20090090356A1 (en) Supralaryngeal Airway Including Instrument Ramp
EP1938855A1 (en) Laryngeal mask airway without inflating
CN1863568A (en) Laryngeal Mask Airway
US20070240722A1 (en) Combination laryngeal mask airway with dual blocking and fluid removal features and method
US20080257356A1 (en) Control tip for supraglottic airway device
CN201516220U (en) Built-in obstructed type gullet drainage tube laryngeal mask airway
WO1995032754A1 (en) Airway for pharyngeal cavity
CN1688357A (en) Improved airway device
JP2008023105A (en) Trachea tube
WO2005046751A2 (en) A combination artficial airway device and esophageal obturator
KR20030003636A (en) Intubation tube
WO2010100419A1 (en) Artificial airway device
CN2238657Y (en) Esophagus blocking type laryngeal cover
CN1378470A (en) Laryngeal Mask with large-bore gastric drainage
CN102921083A (en) Double-balloon laryngeal mask airway for gastroenterological endoscope examination
CN201586307U (en) Double-lumen bronchial catheter with adjustable lumens
CN203235108U (en) Laryngeal mask combined ventilation device with completely-internal type endotracheal tube
WO2008060523A2 (en) Single nasal prong nasal cannula
US7089943B2 (en) Laryngeal mask

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C12 Rejection of a patent application after its publication