Laryngeal mask with backflow prevention function

Abstract

The utility model relates to a laryngeal mask with a function of preventing reflux, which belongs to the field of medical instruments and comprises an air bag used for blocking an airway opening of a human body, a base used for blocking the back side of the air bag and an airway tube used for being communicated with an airway of the human body, and a lower port of the airway tube extends to the inner side of the air bag. The auxiliary tube and the drainage tube are used for being communicated with the esophagus of the human body, a lower end opening of the drainage tube is communicated with the auxiliary tube, a control rod is arranged in the auxiliary tube, the outer side of the control rod is sleeved with an auxiliary sleeve bag used for blocking the auxiliary tube, and a main sleeve bag used for blocking the esophagus of the human body is arranged at the lower end of the control rod. According to the laryngeal mask with the regurgitation prevention function, the main sleeve bag and the auxiliary sleeve bag are matched, so that the esophagus of a patient is blocked, and meanwhile the problem that local tissue of the esophagus wall is damaged due to excessive extrusion is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical devices, concretely relates to a laryngeal mask with anti-reflux function. BACKGROUND

[0002] When performing anesthetic operation, if the patient is in a supine state, the esophagus of the patient is located below the trachea, and during the operation, gastric juice and tracheal secretions are easy to reflux into the oral cavity or airway, thus there is a risk of asphyxia, and the laryngeal mask is one of the commonly used medical devices to avoid the problem of reflux asphyxia during the operation, and the basic function thereof is to block the tracheal port of the patient and establish an artificial airway, and the laryngeal mask can also separate the airway and the esophagus.

[0003] The existing laryngeal mask mainly includes two categories of single-tube laryngeal mask and double-tube laryngeal mask, wherein the single-tube laryngeal mask only has the basic function, and the double-tube laryngeal mask can provide an auxiliary pipeline for communicating with the esophagus of the patient in addition to the artificial airway, and the auxiliary pipeline can play a role in discharging reflux and gastric contents and preventing gastric distension, in order to meet the demand of occasionally completely avoiding the reflux problem during the operation, some double-tube laryngeal masks are additionally provided with a cuff structure, and the principle thereof is to extend into the esophagus and then inflate, and the cuff extrudes the esophageal wall to block the esophagus to completely eliminate the reflux problem, however, the extrusion force of the cuff on the esophagus is too small to ensure the blocking effect, and the extrusion force is too large to easily cause damage to the local tissue in the esophagus of the patient, and therefore, the utility model provides a laryngeal mask with anti-reflux function. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a laryngeal mask with anti-reflux function to solve the above problems.

[0005] The utility model realizes the above-mentioned purpose through the following technical scheme:

[0006] The utility model provides a laryngeal mask with anti-reflux function, including the gasbag for blocking the airway port of human body, the base for blocking the back side of gasbag and the airway tube for communicating the airway of human body, the lower port of airway tube extends to the inside of gasbag, and its characterized in that, still include the auxiliary pipe for communicating the esophagus of human body and the drainage pipe, the lower port of drainage pipe communicates with auxiliary pipe, the outside of control rod is equipped with the auxiliary cuff for blocking auxiliary pipe, and the lower end of control rod is equipped with the main cuff for blocking the esophagus of human body.

[0007] As a further optimization scheme of the utility model, the pipe diameter of the auxiliary pipe is 1.5-2 times of the pipe diameter of the drainage pipe.

[0008] As a further optimization scheme of the utility model, the outside of control rod is equipped with the mounting sleeve, the mounting sleeve is located in the auxiliary pipe, the auxiliary cuff is equipped on the outside of the mounting sleeve, and the lower end of control rod is in the circular truncated cone structure.

[0009] As a further optimization scheme of the utility model, it further comprises a pipe sleeve for wrapping and shaping the airway pipe, the auxiliary pipe and the drainage pipe, the pipe sleeve is in an arc structure and the lower end is fixed on the base.

[0010] As a further optimization scheme of the utility model, the laryngeal mask further comprises a balloon air pipe and two sleeve air pipes for air feeding into the balloon, the main sleeve balloon and the auxiliary sleeve balloon respectively.

[0011] As a further optimization scheme of the utility model, the lower port of the auxiliary pipe is threaded out from the tip of the balloon in the tongue structure.

[0012] The utility model has the advantages of:

[0013] The laryngeal mask with the anti-reflux function realizes the effect of establishing the artificial airway and the esophagus drainage channel which are separated from each other in the operation process through the cooperation of the airway pipe, the auxiliary pipe and the drainage pipe. The double plugging effect for the esophagus is realized through the cooperation of the main sleeve balloon and the auxiliary sleeve balloon, which can not only ensure the sealing property during plugging and avoid the problem of the anti-reflux material spouting, but also avoid the problem of the extrusion damage to the esophagus wall. The pipeline design of the drainage pipe and the auxiliary pipe provides three application modes of the conventional drainage, the esophagus plugging and the drainage channel reservation and the complete plugging, and the application mode is flexible and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall appearance schematic view of the utility model;

[0015] Figure 2 It is the back side schematic view of the utility model;

[0016] Figure 3 It is the bottom schematic view of the utility model;

[0017] Figure 4 It is the control rod and sleeve air pipe distribution schematic view;

[0018] Figure 5 It is the cooperation schematic view of the main sleeve balloon, the auxiliary sleeve balloon and the control rod etc.;

[0019] Figure 6 It is the structure split schematic view of the main sleeve balloon, the auxiliary sleeve balloon and the control rod etc.

[0020] In the drawing: 1, pipe sleeve; 2, base; 3, balloon; 4, airway pipe; 5, auxiliary pipe; 6, drainage pipe; 7, control rod; 8, mounting sleeve; 9, main sleeve balloon; 10, auxiliary sleeve balloon; 11, sleeve air pipe; 12, balloon air pipe. DETAILED DESCRIPTION

[0021] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example 1

[0023] like Figures 1-6 As shown, the laryngeal mask with anti-reflux function of this embodiment includes an air bag 3 for blocking the airway opening of the human body, a base 2 for blocking the back side of the air bag 3, and an airway tube 4 for connecting to the human airway. The lower end of the airway tube 4 extends to the inner side of the air bag 3, and also includes an auxiliary tube 5 and a drainage tube 6 for connecting to the human esophagus. The lower end of the drainage tube 6 is connected to the auxiliary tube 5. A control rod 7 is provided in the auxiliary tube 5. The outer side of the control rod 7 is provided with an auxiliary cuff 10 for blocking the auxiliary tube 5, and the lower end of the control rod 7 is provided with a main cuff 9 for blocking the human esophagus.

[0024] During anesthesia surgery, the airbag 3 is inserted into the patient's pharyngeal cavity until it can no longer be pushed forward, and then the airbag 3 is appropriately inflated. The upper side of the inflated airbag 3 can cover the patient's airway opening, and the lower end of the auxiliary tube 5 and the main cuff 9 are both located in the patient's esophagus. The auxiliary cuff 10 is now located in the auxiliary tube 5.

[0025] When the esophagus does not need to be blocked, the auxiliary cuff 10 is located at the rear side of the docking port between the auxiliary tube 5 and the drainage tube 6. At this time, there is a passage from the upper end of the drainage tube 6 to the lower end of the auxiliary tube 5. This passage allows the doctor to insert a gastric tube to monitor the esophagus and drain it in time.

[0026] When the esophagus needs to be blocked and the drainage channel needs to be retained, there is no need to remove the placed gastric tube. The push control lever 7 is operated to move the auxiliary cuff 10 to the front side of the docking interface between the auxiliary tube 5 and the drainage tube 6, and then inflated. The inflated auxiliary cuff 10 wraps around the gastric tube and squeezes the side wall of the auxiliary tube 5, achieving the effect of blocking the esophagus while retaining the drainage function. The blocking part is inside the auxiliary tube 5, and the auxiliary cuff 10 does not squeeze the patient's esophageal wall. The auxiliary cuff 10 can be fully inflated to ensure the blocking effect while avoiding the problem of damaging the local tissue of the patient's esophageal wall.

[0027] When the esophagus needs to be completely blocked, the stomach tube does not need to be inserted into the drainage tube 6, the push control rod 7 is operated to move the auxiliary sleeve 10 to the front side of the butt joint of the auxiliary tube 5 and the drainage tube 6, and then the main sleeve 9 and the auxiliary sleeve 10 are inflated in sequence to block the esophagus, at this time, the main sleeve 9 is located in the esophagus and forms a blocking effect by extruding the esophagus wall, and the auxiliary sleeve 10 realizes the blocking effect by extruding the inner wall of the auxiliary tube 5, after the double blocking is realized, the auxiliary sleeve 10 does not need to consider the problem of esophageal tissue necrosis caused by extrusion, so it can be fully inflated to eliminate the problem of omission, and the main sleeve 9 does not need to ensure no omission, compared with the scheme of using a single sleeve, the air pressure in the main sleeve 9 can be appropriately reduced to ensure that part of the reflux material can be blocked and the esophagus wall is not excessively extruded.

[0028] Preferably, the pipe diameter of the auxiliary tube 5 is 1.5-2 times of the pipe diameter of the drainage tube 6, and the purpose is to leave enough operation space to facilitate the insertion of the stomach tube, inflation and pushing of the control rod 7 and other operations.

[0029] Preferably, the outside of the control rod 7 is sleeved with a mounting sleeve 8, the mounting sleeve 8 is located in the auxiliary tube 5, the auxiliary sleeve 10 is sleeved outside the mounting sleeve 8, the lower end of the control rod 7 is in a circular truncated cone structure, the control rod 7 is made of silica gel to facilitate the path change in the auxiliary tube 5, and the mounting sleeve 8 and the circular truncated cone end of the control rod 7 are made of hard plastic, which can avoid the problem that the control rod 7 is deformed after the auxiliary sleeve 10 and the main sleeve 9 are inflated to extrude the control rod 7, thereby causing the control rod 7 to be inconvenient to push in a direction.

[0030] Preferably, the laryngeal mask further comprises a tube sleeve 1 for wrapping and shaping the airway tube 4, the auxiliary tube 5 and the drainage tube 6, the tube sleeve 1 is in an arc structure and the lower end is fixed on the base 2, the tube sleeve 1 is designed to be a streamline structure adapting to the curvature of the human throat cavity, which simplifies the outer contour of the laryngeal mask and improves the convenience of inserting the laryngeal mask, thereby reducing the damage of the laryngeal mask to the pharyngeal cavity of the patient.

[0031] Preferably, the laryngeal mask further comprises a gas bag air pipe 12 and two sleeve air pipes 11 for inflating the gas bag 3, the main sleeve 9 and the auxiliary sleeve 10 respectively.

[0032] Preferably, the lower end of the auxiliary tube 5 is out of the tip of the tongue-shaped structure of the gas bag 3, and after the laryngeal mask is placed in place, the tip of the tongue-shaped structure is in a state of extending into the esophagus.

[0033] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A laryngeal mask with anti-regurgitation function, comprising a cuff (3) for plugging the mouth of a human airway, a base (2) for plugging the back side of the cuff (3), and an airway tube (4) for communicating with the human airway, the lower port of the airway tube (4) extending to the inside of the cuff (3), characterized in that, The auxiliary tube (5) and the drainage tube (6) are used for communicating with the esophagus of the human body, the lower port of the drainage tube (6) communicates with the auxiliary tube (5), the control rod (7) is arranged in the auxiliary tube (5), the outer side of the control rod (7) is sleeved with the auxiliary cuff (10) used for blocking the auxiliary tube (5), and the lower end of the control rod (7) is provided with the main cuff (9) used for blocking the esophagus of the human body.

2. The laryngeal mask with anti-regurgitation function according to claim 1, characterized in that, The diameter of the auxiliary tube (5) is 1.5-2 times of the diameter of the drainage tube (6).

3. The laryngeal mask with anti-regurgitation function according to claim 1, characterized in that, The outer side of the control rod (7) is sleeved with the mounting sleeve (8), the mounting sleeve (8) is arranged in the auxiliary tube (5), the auxiliary cuff (10) is sleeved on the outer side of the mounting sleeve (8), and the lower end of the control rod (7) is in the circular truncated cone structure.

4. The laryngeal mask with anti-regurgitation function according to claim 1, characterized in that, The tube sleeve (1) is used for wrapping and shaping the airway tube (4), the auxiliary tube (5) and the drainage tube (6), the tube sleeve (1) is in the arc structure and is fixed on the base (2) at the lower end.

5. The laryngeal mask with anti-regurgitation function according to claim 1, wherein, The laryngeal mask further comprises the cuff air pipe (12) and the two cuff air pipes (11) used for respectively introducing air into the air bag (3), the main cuff (9) and the auxiliary cuff (10).

6. The laryngeal mask with anti-regurgitation function according to claim 1, wherein, The lower port of the auxiliary tube (5) penetrates out from the tip of the tongue-shaped air bag (3).

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