CN214286215U

CN214286215U - Double-tube laryngeal mask for preventing gastric juice from flowing back

Info

Publication number: CN214286215U
Application number: CN202022936313.1U
Authority: CN
Inventors: 阳慧; 肖乾慧; 吴书梅
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-28
Anticipated expiration: 2030-12-10

Abstract

The utility model provides a double-tube laryngeal mask for preventing gastric juice from flowing back, which comprises a mask sac, an aeration pipe, a drainage pipe and a stomach tube, wherein the aeration port of the mask sac is connected with the aeration pipe, the aeration cavity of the mask sac is communicated with the aeration pipe, the tip end of the mask sac is provided with an opening which is just opposite to an esophagus, and the drainage pipe extends into the opening from the upper end of the mask sac; the drainage tube is a dual-channel pipeline, the stomach tube is inserted into one of the channels, the outer side wall of the stomach tube is circumferentially connected with the inner side wall of the channel through a corrugated connecting piece, when the corrugated connecting piece contracts, the tail end of the stomach tube is located in the drainage tube, and when the connecting piece extends, the tail end of the stomach tube extends out of the opening of the mask sac. Can pump away digestive juice in stomach and gas in stomach when supplying oxygen.

Description

Double-tube laryngeal mask for preventing gastric juice from flowing back

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to prevent double-barrelled laryngeal mask of gastric juice reflux.

Background

The laryngeal mask is a device adopting the mode of external glottis ventilation, has the characteristics of simple and convenient operation, can replace a tracheal cannula to quickly establish a breathing passage for a patient, and is particularly preferred for a large number of patients with difficult tracheal cannula. In order to improve the clinical application effect of the laryngeal mask, an esophageal drainage type laryngeal mask is commonly used at present, an airway of the laryngeal mask can drain esophageal reflux materials, the laryngeal mask is provided with a drainage tube which is parallel to the airway, the drainage tube passes through a mask sac of the laryngeal mask and is opened at the tip of the mask sac, when the laryngeal mask is used, the tip can block the entrance of an esophagus of a patient, and esophageal reflux materials and stomach contents can be sucked through the opening of the tip.

At the present stage, no suitable device is available, which can ensure normal ventilation and avoid the risk of mistaken suction of liquid flowing back from the stomach while not affecting the continuity of the operation.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a double-tube laryngeal mask for preventing gastric juice from flowing back, which can pump away digestive juice in the stomach and gas in the stomach when the laryngeal mask is ventilated and supplies oxygen.

In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme be:

a double-tube laryngeal mask for preventing gastric juice from flowing back comprises a mask sac, an aeration pipe, an inflation pipe, a drainage pipe and a gastric tube, wherein an inflation port of the mask sac is connected with the inflation pipe; the drainage tube is a dual-channel pipeline, the stomach tube is inserted into one of the channels, the outer side wall of the stomach tube is circumferentially connected with the inner side wall of the channel through a corrugated connecting piece, when the corrugated connecting piece contracts, the tail end of the stomach tube is located in the drainage tube, and when the connecting piece extends, the tail end of the stomach tube extends out of the opening of the mask sac.

The stomach tube of the utility model is provided with scales.

The upper end of the stomach tube is provided with a negative pressure valve.

Breather pipe and drainage tube formula structure as an organic whole.

The utility model has the advantages that:

1. the utility model discloses a drainage tube of double-barrelled laryngeal mask is the binary channels pipeline to set up the stomach tube in one of them pipeline, insert the stomach tube downwards along the passageway of drainage tube, corrugated connecting piece downwardly extending makes the end of stomach tube stretch out the opening of cover bag, get into the esophagus, can in time take away the digestive juice in the esophagus and get into the gas in the stomach for the mistake of oxygen time in giving oxygen, can not only reduce the safety risk, still be favorable to for reducing the volume for the stomach, make things convenient for the implementation of laparoscopic surgery, increase operation space.

2. The utility model discloses a binary channels drainage tube, another passageway can be used to insert the temperature sensor probe, conveniently detects the temperature in the esophagus.

Drawings

Fig. 1 is a front view of the double-tube laryngeal mask for preventing the backflow of gastric juice of the present invention.

FIG. 2 is a front view of embodiment 4.

FIG. 3 is a partial structural sectional view of the draft tube.

Fig. 4 is a top view of fig. 3.

Labeled as: 1. the mask comprises a mask sac, 2, an air pipe, 3, a drainage pipe, 4, an inflation pipe, 5, a stomach tube, 6, a negative pressure valve, 8, a connecting piece, 11, an opening, 31 and a channel.

Detailed Description

In order to illustrate the technical solution of the present invention more clearly and in detail, the present invention is further described below by referring to the following embodiments. The following examples are only for the purpose of specifically illustrating the method of implementing the present invention, and do not limit the scope of the present invention.

Example 1

As shown in fig. 1-4, a double-tube laryngeal mask for preventing gastric juice from flowing back comprises a mask sac 1, an aeration tube 2, an aeration tube 4, a drainage tube 3 and a gastric tube 5, wherein an aeration port of the mask sac 1 is connected with the aeration tube 4, an aeration cavity of the mask sac 1 is communicated with the aeration tube 2, an opening 11 facing an esophagus is formed at the tip of the mask sac 1, and the drainage tube 3 extends into the opening 11 from the upper end of the mask sac 1; drainage tube 3 is the binary channels pipeline, stomach tube 5 inserts one of them passageway 31, and the lateral wall of stomach tube 5 passes through 8 circumferential connections of corrugate connecting piece the inside wall of passageway 31, when 8 contractions of corrugate connecting piece, the end of stomach tube 5 is located drainage tube 3, and when connecting piece 8 extended, the end of stomach tube 5 stretched out the opening 11 of hood sac.

In use, the central part of the ventilation tube 2 of the laryngeal mask is held in hand, the mask cuff is placed in the oral cavity facing the hard palate, the laryngeal mask is pushed towards the proximal throat while the ventilation tube is rotated through an angle of 180 DEG so that the mask cuff faces the glottis. The mask bag 1 is inflated through the inflation tube 4, a closed ring is formed around the pharynx, the patient can breathe independently, and the gap positive pressure ventilation can be performed. The stomach tube 5 is connected with the negative pressure machine, the stomach tube 5 is inserted downwards along the channel 31 of the drainage tube 3, the corrugated connecting piece 8 extends downwards, the tail end of the stomach tube 5 extends out of the opening 11 of the hood bag 1, the stomach tube 5 enters the esophagus, the negative pressure machine generates negative pressure to pump away gas and digestive juice in the esophagus, after the completion, the negative pressure machine is closed, the stomach tube is lifted upwards, the corrugated connecting piece 8 contracts, and the stomach tube returns to the drainage tube. The temperature sensor probe is inserted into the esophagus from another channel 31 of the drainage tube, and enters the esophagus from the opening 11 to obtain the temperature of the esophagus.

Example 2

This example is based on example 1:

the stomach tube 5 is provided with scales, so that the depth of the stomach tube inserted into the esophagus can be observed conveniently.

Example 3

This example is based on example 1:

the upper end of stomach tube 5 is provided with negative pressure valve 6. More convenient control of negative pressure and timely suction of the esophagus of the patient.

Example 4

This example is based on example 1:

as shown in figure 2, the vent pipe and the drainage pipe are of an integrated structure, so that the device is more convenient to place in the oral cavity.

The connection method not illustrated in the present invention is a conventional connection method such as bonding, screw thread and integral formation.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A double-tube laryngeal mask for preventing gastric juice from flowing back is characterized in that: the mask comprises a mask sac, an aeration pipe, an inflation pipe, a drainage pipe and a stomach tube, wherein an inflation port of the mask sac is connected with the inflation pipe, an aeration cavity of the mask sac is communicated with the aeration pipe, the tip of the mask sac is provided with an opening which is right opposite to an esophagus, and the drainage pipe extends into the opening from the upper end of the mask sac; the drainage tube is a dual-channel pipeline, the stomach tube is inserted into one of the channels, the outer side wall of the stomach tube is circumferentially connected with the inner side wall of the channel through a corrugated connecting piece, when the corrugated connecting piece contracts, the tail end of the stomach tube is located in the drainage tube, and when the connecting piece extends, the tail end of the stomach tube extends out of the opening of the mask sac.

2. The double tube laryngeal mask of claim 1, wherein the laryngeal mask comprises: scales are arranged on the stomach tube.

3. The double tube laryngeal mask of claim 1, wherein the laryngeal mask comprises: the upper end of stomach tube is provided with the negative pressure valve.

4. The double tube laryngeal mask of claim 1, wherein the laryngeal mask comprises: the breather pipe and the drainage pipe are of an integrated structure.