CN215690742U

CN215690742U - Improved double-cavity laryngeal mask

Info

Publication number: CN215690742U
Application number: CN202121870929.1U
Authority: CN
Inventors: 陈永学; 王新波; 杨晓彬; 苑进革
Original assignee: Handan central hospital
Current assignee: Handan central hospital
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-02-01
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses an improved double-cavity laryngeal mask, and relates to the technical field of medical equipment; comprises an air bag part, a pipeline part and an inner interface part, the right side of the ventilation cover is fixedly connected with an inflation tube, the right end of the inflation tube is fixedly connected with a silica gel inflation bag and an inflation valve in sequence, the inner surface of the ventilation cover of the air bag part is fixedly connected with a pipeline part, the double-cavity pipeline penetrates from the right side of the ventilation cover and penetrates out from the left side of the ventilation cover along the inner surface of the ventilation cover, the double-cavity pipeline is fixedly connected with the ventilation cover, an auxiliary cavity path and an instrument cavity path are arranged in the middle of the double-cavity pipeline, the instrument pipeline is a circular cavity path, and the improved double-cavity laryngeal cover is characterized in that the ventilation cover is a hollow structure, the inner side and the left end of the ventilation cover are provided with the orthocircular cavity, which solves the problem that when the existing non-orthocircular cavity is inserted into a surgical instrument, the problem of difficult blocked instrument access is caused due to the non-perfect-circle shape of the cavity, and meanwhile, the perfect-circle cavities at the inner side and the left end of the ventilation hood meet the requirement of accessing surgical instruments into the esophagus or the trachea.

Description

Improved double-cavity laryngeal mask

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an improved double-cavity laryngeal mask.

Background

The laryngeal mask, the full name Laryngeal Mask Airway (LMA), is placed in the pharyngeal cavity, seals the esophagus and the pharyngeal cavity with the air sac, and is an artificial airway ventilated through the laryngeal cavity, thereby avoiding tracheal intubation, but being more effective than a mask; laryngeal masks can be divided into four categories according to their own characteristics and uses: a common laryngeal mask (used for maintaining spontaneous breathing in anesthesia), a reinforced laryngeal mask (used for controlling breathing), an intubating laryngeal mask (auxiliary endotracheal intubation) and a double-cavity laryngeal mask; wherein the two-chamber laryngeal mask: the main characteristic is that the improvement of the ventilation cover and the addition of the drainage tube form two mutually connected sealed cavities after being placed, one is that the ventilation cover seals the throat and communicates with the ventilation pipeline, and the other is that the front end of the ventilation cover seals the opening part of the upper sphincter of the esophagus and communicates with the drainage tube; compared with the common laryngeal mask, the laryngeal mask has similar implantation difficulty, is safer and more effective during positive pressure ventilation, has lower aspiration incidence rate, can also place the sputum suction tube through the drainage channel, and is easy to find when the position is incorrect. Therefore, the device has wider clinical application range, and is suitable for the operations on the body surfaces of the limbs, the abdominal operation of the laparoscope and the like.

In summary, the following technical problems exist in the use process of the traditional double-cavity laryngeal mask: 1) because a gastroscope, a bronchoscope or a sputum suction tube is usually placed in the air duct as required and is used as a suction channel and a treatment channel, but the existing air duct is mostly similar to a circle, and is blocked in the insertion process, and surgical instruments are placed or used as a surgical channel, so that the operation is blocked, and the life safety of a patient is threatened in an emergency; 2) one is that the laryngeal seal is communicated with the ventilation pipeline by the ventilation cover, the other is that the upper sphincter opening of the esophagus is sealed and communicated with the drainage tube by the front end of the ventilation cover, the drainage tube is thinner relative to the ventilation pipeline and is not beneficial to the entry of instruments such as gastroscopes, and if the double-cavity laryngeal cover adopts two cavities which also meet the entry diameter of the instruments, the double-cavity laryngeal pipeline is too thick, and the placing of the double-cavity laryngeal cover is difficult.

SUMMERY OF THE UTILITY MODEL

In view of the above-identified problems with the prior art, the present invention provides an improved dual lumen laryngeal mask.

In order to achieve the technical purpose and achieve the technical effect, the utility model is realized by the following technical scheme:

the utility model provides an improvement two-chamber laryngeal mask, includes gasbag portion, pipeline portion and interior interface part, gasbag portion is including ventilating cover, gas tube, silica gel gas cell and inflation valve, ventilating cover right side fixedly connected with gas tube, the gas tube right-hand member fixedly connected with silica gel gas cell and inflation valve in proper order, the internal surface fixedly connected with pipeline portion of ventilating cover of gasbag portion, pipeline portion includes two-chamber pipeline, apparatus pipeline joint, supplementary chamber way, long supplementary chamber post, apparatus chamber way and long apparatus chamber post, two-chamber pipeline follows the ventilating cover right side penetrates along the ventilating cover internal surface is followed the ventilating cover left side is worn out, two-chamber pipeline with ventilating cover fixed connection, it has supplementary chamber way and apparatus chamber way to open in the middle of the two-chamber pipeline, the apparatus pipeline is just circular chamber way, apparatus pipeline internal diameter satisfies places gastroscope way, The bronchoscope or the sputum suction tube is used as a suction and treatment channel, the inner diameter of the auxiliary cavity is smaller than that of the instrument cavity, the right end of the double-cavity pipeline is arranged at the corresponding position of the auxiliary cavity and the instrument cavity and is respectively and fixedly connected with an auxiliary pipeline joint and an instrument pipeline joint, the auxiliary cavity at the left end of the double-cavity pipeline and the instrument cavity are internally and detachably connected with a long auxiliary cavity column and a long instrument cavity column, the pipeline part is fixedly connected with an inner interface part at the inner side of the ventilation cover, the inner interface part comprises an inner interface seat, an auxiliary cavity opening, a short auxiliary cavity column, an instrument cavity opening and a short instrument cavity column, the inner interface seat is fixedly connected at the inner side of the ventilation cover, the auxiliary cavity opening and the instrument cavity opening are arranged at the positions of the auxiliary cavity and the instrument cavity of the double-cavity pipeline, and the auxiliary cavity opening passes through the double-cavity pipeline and is communicated with the auxiliary cavity, the apparatus accent passes the two-chamber pipeline with apparatus chamber way intercommunication, supplementary accent and apparatus accent axial supplementary chamber way with angle is the obtuse angle between the apparatus chamber way right side axial, detachable short supplementary chamber post that is connected with in the supplementary accent, detachable short apparatus chamber post that is connected with of apparatus accent.

The long auxiliary cavity column and the long instrument cavity column seal the auxiliary cavity path and the instrument cavity path on the left side of the inner interface seat, and the short auxiliary cavity column and the short instrument cavity column seal the auxiliary cavity opening and the instrument cavity opening;

the right end of the long instrument cavity column is provided with a long instrument column inclined plane, and the long instrument column inclined plane enables instruments to penetrate out of the instrument cavity opening along the long instrument column inclined plane when entering the instruments from the right side of the instrument cavity path;

the short instrument cavity column is characterized in that a short instrument column inclined plane is arranged on the lower side of the short instrument cavity column, the short instrument column inclined plane is used for filling the inner surface of the opening of the inner interface seat of the instrument cavity, and the short instrument column inclined plane enables an instrument to be prevented from being blocked at the inner interface seat when the instrument is fed from the right side of the instrument cavity.

Further, long supplementary chamber post left end is equipped with long supplementary catching groove, the long supplementary post trip point of long supplementary chamber post left end downside fixedly connected with, the two-chamber pipeline is in supplementary chamber way left end downside is opened has long supplementary post draw-in groove, long supplementary post trip point with long supplementary post draw-in groove cooperation, long supplementary chamber post right-hand member is equipped with long supplementary post inclined plane, long supplementary post inclined plane makes the fluid follow when supplementary chamber way right side gets into or flows, flows gently from supplementary accent along long supplementary post inclined plane, can not be detained.

Furthermore, long apparatus chamber post left end is equipped with long apparatus catching groove, long apparatus post trip point of long apparatus chamber post left end downside fixedly connected with, the two-chamber pipeline is in apparatus chamber way left end downside is opened long apparatus post draw-in groove, long apparatus post trip point with long apparatus post draw-in groove cooperation.

Furthermore, a short auxiliary column fastening groove is formed in the upper side of the short auxiliary cavity column, a short auxiliary column clamping point is fixedly connected to the left side of the short auxiliary cavity column, an auxiliary opening clamping groove is formed in the inner interface seat or the double-cavity pipeline, the short auxiliary column clamping point is matched with the auxiliary opening clamping groove, a short auxiliary column inclined plane is arranged on the lower side of the short auxiliary cavity column, the short auxiliary column inclined plane is used for supplementing the inner surface of the opening of the inner interface seat of the auxiliary cavity, and when fluid enters or flows out from the right side of the auxiliary cavity, the fluid smoothly flows at the position of the short auxiliary column inclined plane and is not blocked.

Furthermore, a short instrument column fastening groove is formed in the upper side of the short instrument cavity column, a short instrument column clamping point is fixedly connected to the left side of the short instrument cavity column, an instrument opening clamping groove is formed in the inner interface seat or the double-cavity pipeline, and the short instrument column clamping point is matched with the instrument opening clamping groove.

Further, the auxiliary line connector and the instrument line connector are axially non-parallel.

Further, the double-cavity pipeline only keeps the auxiliary cavity to extend to the left end of the ventilation cover when the circular instrument cavity reaches the inner side opening of the ventilation cover, and the double-cavity pipeline reaches the inner side opening of the ventilation cover when the circular instrument cavity reaches the left side opening of the ventilation cover, so that the auxiliary cavity reaches the inner side opening of the ventilation cover, an inner connecting part is not arranged, and the matching of detachable parts is not needed.

The utility model has the beneficial effects that:

an improved double-cavity laryngeal mask is provided with a regular circular cavity at the inner side and the left end of an air vent, solves the problem that when an existing non-regular circular cavity is inserted into a surgical instrument, the instrument is difficult to enter due to the fact that the cavity is blocked due to the non-regular circular shape, and meets the requirement that the surgical instrument enters into an esophagus or a trachea.

The instrument cavity is in a perfect circle shape, when the instrument cavity is used for placing a gastroscope, a bronchoscope or a sputum suction tube and used as a suction channel and a treatment channel, the surgical instrument can smoothly enter the instrument cavity through the perfect circle shape, the instrument can not be blocked from being inserted, the operation can be smoothly carried out, the patient can be treated in time in an emergency, and the treatment time delay caused by the blockage of the instrument can be avoided.

The positions of the utility model, which are hermetically communicated with the throat and the upper esophageal sphincter opening, are provided with the right circular instrument channels for successfully placing surgical instruments, when one of the instruments is used according to the operation requirement, the instrument channels are adjusted by the corresponding parts, so that the problem that the surgical instruments need to be placed into the esophagus or trachea is solved, and the inner diameter of the auxiliary channel is smaller than that of the instrument channel, so that the whole double-cavity pipeline is conveniently and smoothly placed.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of an improved dual lumen laryngeal mask in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of the structural connection of the airbag portion according to the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a pipeline section according to an embodiment of the present invention;

FIG. 4 is a schematic view of a dual lumen tubing and instrument tubing coupling configuration according to an embodiment of the present invention;

FIG. 5 is a schematic view of a distributed structure of the pipe sections according to the embodiment of the present invention;

FIG. 6 is a partial schematic view of a divergent configuration of a conduit portion according to an embodiment of the utility model;

FIG. 7 is a schematic view illustrating a distributed structure of an inner interface according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a short auxiliary cavity post and a short instrument cavity post according to an embodiment of the present invention;

fig. 9 is a schematic cross-sectional view of the instrument lumen with the short instrument lumen post mounted in the inner interface block according to the embodiment of the present invention;

fig. 10 is a schematic cross-sectional structural view of the short auxiliary cavity column installed in the inner interface seat and the long instrument cavity column installed in the instrument cavity according to the embodiment of the present invention;

FIG. 11 is a schematic view of the instrument lumen of the present embodiment shown without an internal interface portion when the ventilation mask is open at the left end;

FIG. 12 is a schematic view of the instrument lumen inside the ventilation mask with no internal interface.

In the drawings, the components represented by the respective reference numerals are listed below:

1-through airbag, 101-inflation tube, 102-silica gel inflation bag, 103-inflation valve, 2-double cavity tube, 201-instrument tube joint, 202-auxiliary tube joint, 203-inner interface seat, 2031-auxiliary cavity mouth, 20311-auxiliary mouth clamping groove, 20312-short auxiliary cavity column, 20313-short auxiliary column clamping groove, 20314-short auxiliary column clamping point, 20315-short auxiliary column inclined plane, 2032-instrument cavity mouth, 20321-instrument mouth clamping groove, 20322-short instrument cavity column, 20323-short instrument column clamping groove, 20324-short instrument column clamping point, 20325-short instrument column inclined plane, 204-auxiliary cavity way, 2041-long auxiliary cavity column, 2042-long auxiliary column clamping point, 20421-long auxiliary column clamping groove, 2043-long auxiliary clamping groove, 2044-long auxiliary column, 205-instrument lumen, 2051-long instrument lumen column, 2052-long instrument column clamping point, 20521-long instrument column clamping groove, 2053-long instrument buckling groove and 2054-long instrument column inclined plane.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-12

The utility model relates to an improved double-cavity laryngeal mask, which comprises an air bag part, a pipeline part and an inner interface part, wherein the air bag part comprises an air vent cover (1), an inflation tube (101), a silica gel inflation bag (102) and an inflation valve (103), the right side of the air vent cover (1) is fixedly connected with the inflation tube (101), the right end of the inflation tube (101) is fixedly connected with the silica gel inflation bag (102) and the inflation valve (103) in sequence, the inner surface of the air vent cover (1) of the air bag part is fixedly connected with the pipeline part, the pipeline part comprises a double-cavity pipeline (2), an instrument pipeline joint (201), an auxiliary pipeline joint (202), an auxiliary cavity pipeline (204), a long auxiliary cavity column (2041), an instrument cavity column (205) and a long instrument cavity column (2051), the double-cavity pipeline (2) penetrates from the right side of the air vent cover (1) and penetrates out from the left side of the air vent cover (1) along the inner surface of the air vent cover (1), double-chamber pipeline (2) with ventilate cover (1) fixed connection, it has supplementary chamber way (204) and apparatus chamber way (205) to open in the middle of double-chamber pipeline (2), the apparatus pipeline is just circular chamber way, apparatus pipeline internal diameter satisfies places gastroscope, bronchoscope or inhale phlegm pipe and as attracting, treatment passageway, supplementary chamber way (204) internal diameter is less than apparatus chamber way (205) internal diameter, double-chamber pipeline (2) right-hand member is in supplementary chamber way (204) and apparatus chamber way (205) correspond the position, respectively fixedly connected with supplementary pipeline joint (202) and apparatus pipeline joint (201), detachable supplementary chamber post (2041) and long apparatus chamber post (2051) of being connected with in supplementary chamber way (204) and the apparatus chamber way (205) of double-chamber pipeline (2) left end, pipeline portion is in the inboard fixedly connected with of ventilate cover (1) internal interface portion, the inner interface part comprises an inner interface seat (203), an auxiliary cavity port (2031), a short auxiliary cavity column (20312), an instrument cavity port (2032) and a short instrument cavity column (20322), the inner interface seat (203) is fixedly connected to the inner side of the ventilation hood (1), the inner interface seat (203) is provided with the auxiliary cavity port (2031) and the instrument cavity port (2032) at the positions of the auxiliary cavity path (204) and the instrument cavity path (205) of the double-cavity pipeline (2), the auxiliary cavity port (2031) passes through the double-cavity pipeline (2) to be communicated with the auxiliary cavity path (204), the instrument cavity port (2032) passes through the double-cavity pipeline (2) to be communicated with the instrument cavity path (205), the axial directions of the auxiliary cavity port (2031) and the instrument cavity port (2032) are obtuse angles between the axial directions of the auxiliary cavity path (204) and the right side of the instrument cavity path (205), and the instrument does not need to be bent by a large angle when moving, the auxiliary cavity opening (2031) is detachably connected with a short auxiliary cavity column (20312), and the instrument cavity opening (2032) is detachably connected with a short instrument cavity column (20322); the long auxiliary cavity column (2041) and the long instrument cavity column (2051) seal the auxiliary cavity path (204) and the instrument cavity path (205) on the left side of the inner interface seat (203), and the short auxiliary cavity column (20312) and the short instrument cavity column (20322) seal the auxiliary cavity port (2031) and the instrument cavity port (2032); a long instrument column inclined plane (2054) is arranged at the right end of the long instrument cavity column (2051), and when an instrument enters the instrument from the right side of the instrument cavity path (205), the instrument penetrates out of the instrument cavity opening (2032) along the long instrument column inclined plane (2054) by the long instrument column inclined plane (2054); a short instrument column inclined surface (20325) is arranged on the lower side of the short instrument cavity column (20322), the short instrument column inclined surface (20325) is used for filling up the inner surface of the opening of the inner interface seat (203) of the instrument cavity channel (205), and the short instrument column inclined surface (20325) enables an instrument to enter from the right side of the instrument cavity channel (205) without being blocked at the inner interface seat (203); the left end of the long auxiliary cavity column (2041) is provided with a long auxiliary catching groove (2043), the long auxiliary catching groove (2043) is convenient for a user to control, the lower side of the left end of the long auxiliary cavity column (2041) is fixedly connected with a long auxiliary column clamping point (2042), the lower side of the left end of the auxiliary cavity path (204) of the double-cavity pipeline (2) is provided with a long auxiliary column clamping groove (20421), the long auxiliary column clamping point (2042) is matched with the long auxiliary column clamping groove (20421) to ensure that the long auxiliary cavity column (2041) is stable in the auxiliary cavity path (204), the right end of the long auxiliary cavity column (2041) is provided with a long auxiliary column inclined surface (2044), and when fluid enters or flows out from the right side of the auxiliary cavity path (204), the fluid flows gently from the auxiliary cavity opening (2031) along the long auxiliary column inclined surface (2044) and cannot be retained; a long instrument catching groove (2053) is formed in the left end of the long instrument cavity column (2051), the long instrument catching groove (2053) is convenient for a user to control, a long instrument column clamping point (2052) is fixedly connected to the lower side of the left end of the long instrument cavity column (2051), a long instrument column clamping groove (20521) is formed in the lower side of the left end of the instrument cavity (205) of the double-cavity pipeline (2), and the long instrument column clamping point (2052) is matched with the long instrument column clamping groove (20521) to guarantee that the long instrument cavity column (2051) is stable in the instrument cavity (205); a short auxiliary column fastening groove (20313) is arranged on the upper side of the short auxiliary cavity column (20312), the short auxiliary column fastening groove (20313) is convenient for a user to control, a short auxiliary column clamping point (20314) is fixedly connected on the left side of the short auxiliary cavity column (20312), an auxiliary port clamping groove (20311) is arranged on the inner port seat (203) or the double-cavity pipeline (2), the short auxiliary column clamping point (20314) is matched with the auxiliary port clamping groove (20311) to ensure that the short auxiliary cavity column (20312) is stable in the auxiliary cavity port (2031) of the inner port seat (203), a short auxiliary column inclined surface (20315) is arranged on the lower side of the short auxiliary cavity column (20312), the short auxiliary column inclined surface (20315) is used for supplementing the inner surface of the opening of the inner port seat (203) of the auxiliary cavity column (204), and the short auxiliary column inclined surface (20315) makes fluid flow at the position of the short auxiliary column inclined surface (20315) when the fluid enters or flows out from the right side of the auxiliary cavity (204), is not obstructed; a short instrument column fastening groove (20323) is formed in the upper side of the short instrument cavity column (20322), the short instrument column fastening groove (20323) is convenient for a user to control, a short instrument column clamping point (20324) is fixedly connected to the left side of the short instrument cavity column (20322), an instrument port clamping groove (20321) is formed in the inner interface seat (203) or the double-cavity pipeline (2), and the short instrument column clamping point (20324) is matched with the instrument port clamping groove (20321) to ensure that the short instrument cavity column (20322) is stable in the instrument port (2032) of the inner interface seat (203); the auxiliary pipeline joint (202) and the instrument pipeline joint (201) are not parallel to each other in the axial direction, so that the two pipeline joints can be conveniently connected with a medical instrument; two chamber pipeline (2) reach in circular apparatus chamber way (205) when ventilating cover (1) inboard opening, only remain supplementary chamber way (204) and extend to ventilate cover (1) left end, two chamber pipeline (2) reach in circular apparatus chamber way (205) when ventilating cover (1) left side opening, then supplementary chamber way (204) reach ventilate cover (1) inboard opening does not set up interior interface part, does not need the cooperation of detachable part.

When the instrument is placed at the left end of the ventilation hood needing the esophagus communication, the long auxiliary cavity column and the short instrument cavity column are installed, so that the auxiliary cavity path is only opened at the inner side of the ventilation hood, and the instrument enters the left end of the ventilation hood from the cavity path of the circular instrument without being blocked.

In conclusion, the improved double-cavity laryngeal mask provided by the utility model is provided with the regular circular cavities at the inner side and the left end of the ventilation mask, so that the problem that the instruments are difficult to enter because of the non-regular circular shape of the cavities when the surgical instruments are inserted into the existing non-regular circular cavities is solved, and meanwhile, the regular circular cavities at the inner side and the left end of the ventilation mask meet the requirement of entering the surgical instruments into the esophagus or trachea.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An improved double-cavity laryngeal mask is characterized in that: including gasbag portion, pipeline portion and interior interface part, gasbag portion is including ventilating cover, gas tube, silica gel gas cell and inflation valve, ventilate cover right side fixedly connected with gas tube, the gas tube right-hand member fixedly connected with silica gel gas cell and inflation valve in proper order, the internal surface fixedly connected with pipeline portion of ventilating cover of gasbag portion, pipeline portion includes two-chamber pipeline, apparatus pipeline joint, supplementary chamber way, long supplementary chamber post, apparatus chamber way and long apparatus chamber post, two-chamber pipeline is followed the ventilating cover right side penetrates along the ventilating cover internal surface is followed wear out on the left of ventilating cover, two-chamber pipeline with ventilating cover fixed connection, it has supplementary chamber way and apparatus chamber way to open in the middle of the two-chamber pipeline, the apparatus pipeline is just circular chamber way, apparatus pipeline internal diameter satisfies places gastroscope, bronchoscope or inhales the phlegm pipe and as attracting, the treatment channel, the auxiliary cavity way internal diameter is less than the apparatus cavity way internal diameter, the right end of the double-cavity pipeline is respectively and fixedly connected with an auxiliary pipeline joint and an apparatus pipeline joint at the corresponding positions of the auxiliary cavity way and the apparatus cavity way, the auxiliary cavity way and the apparatus cavity way at the left end of the double-cavity pipeline are internally and detachably connected with a long auxiliary cavity column and a long apparatus cavity column, the pipeline part is fixedly connected with an inner interface part at the inner side of the ventilation cover, the inner interface part comprises an inner interface seat, an auxiliary cavity opening, a short auxiliary cavity column, an apparatus cavity opening and a short apparatus cavity column, the inner interface seat is fixedly connected at the inner side of the ventilation cover, the inner interface seat is provided with the auxiliary cavity opening and the apparatus cavity opening at the positions of the auxiliary cavity way and the apparatus cavity way of the double-cavity pipeline, the auxiliary cavity opening penetrates through the double-cavity pipeline to be communicated with the auxiliary cavity way, and the apparatus cavity opening penetrates through the double-cavity pipeline to be communicated with the apparatus cavity way, supplementary accent and apparatus accent axial supplementary chamber way with the angle is the obtuse angle between the right side axial of apparatus chamber way, the detachable short supplementary chamber post that is connected with in the supplementary accent, the detachable short apparatus chamber post that is connected with of apparatus accent.

2. The improved dual lumen laryngeal mask of claim 1, wherein: the long auxiliary cavity column left end is equipped with long auxiliary buckle groove, the long auxiliary column stuck point of long auxiliary cavity column left end downside fixedly connected with, the two-chamber pipeline is in open auxiliary cavity way left end downside has long auxiliary column draw-in groove, long auxiliary column stuck point with long auxiliary column draw-in groove cooperation, long auxiliary cavity column right-hand member is equipped with long auxiliary column inclined plane, long auxiliary column inclined plane makes the fluid follow when auxiliary cavity way right side gets into or flows, flows gently from auxiliary cavity mouth along long auxiliary column inclined plane, can not be detained.

3. The improved dual lumen laryngeal mask of claim 1, wherein: the left end of the long instrument cavity column is provided with a long instrument fastening groove, the lower side of the left end of the long instrument cavity column is fixedly connected with a long instrument column clamping point, the lower side of the left end of the instrument cavity is provided with a long instrument column clamping groove, and the long instrument column clamping point is matched with the long instrument column clamping groove.

4. The improved dual lumen laryngeal mask of claim 1, wherein: the short auxiliary cavity column comprises an inner interface seat and a double-cavity tube, and is characterized in that a short auxiliary column fastening groove is formed in the upper side of the short auxiliary cavity column, a short auxiliary column fastening point is fixedly connected to the left side of the short auxiliary cavity column, an auxiliary opening fastening groove is formed in the inner interface seat or the double-cavity tube, the short auxiliary column fastening point is matched with the auxiliary opening fastening groove, a short auxiliary column inclined plane is arranged on the lower side of the short auxiliary cavity column, the short auxiliary column inclined plane is used for complementing the inner surface of the opening of the inner interface seat of the auxiliary cavity, and when fluid enters or flows out from the right side of the auxiliary cavity, the fluid flows gently at the position of the short auxiliary column inclined plane and is not blocked.

5. The improved dual lumen laryngeal mask of claim 1, wherein: the upper side of the short instrument cavity column is provided with a short instrument column fastening groove, the left side of the short instrument cavity column is fixedly connected with a short instrument column clamping point, an instrument port clamping groove is formed in the inner interface seat or the double-cavity pipeline, and the short instrument column clamping point is matched with the instrument port clamping groove.

6. The improved dual lumen laryngeal mask of claim 1, wherein: the auxiliary line connection and the instrument line connection are axially non-parallel.

7. The improved dual lumen laryngeal mask of claim 1, wherein: the double-cavity pipeline only keeps the auxiliary cavity to extend to the left end of the ventilation cover when the circular instrument cavity reaches the inner side opening of the ventilation cover, and the auxiliary cavity reaches the inner side opening of the ventilation cover when the double-cavity pipeline reaches the left side opening of the ventilation cover, so that an inner connecting part is not arranged, and the matching of detachable parts is not needed.