CN219110495U

CN219110495U - Oropharynx respiratory tube capable of avoiding reverse infection

Info

Publication number: CN219110495U
Application number: CN202222940157.5U
Authority: CN
Inventors: 刘建仓; 刘良明; 张�杰; 闫庆广
Original assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Current assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-06-02
Anticipated expiration: 2032-11-04

Abstract

The utility model relates to the technical field of auxiliary expiration equipment, in particular to an oropharynx breathing tube for avoiding reverse infection. When the rescuer blows, the thumb of the rescuer presses the pressing plate to enable the vent hole to be communicated with the air guide channel, and the rubber plug seals the air outlet hole, so that air enters the lung of the patient; when the person of saving oneself finishes blowing, the thumb of the person of saving oneself loosens the clamp plate, and under the effect of spring, the rectangle movable lever resets and removes, cuts off the middle part of air guide channel, simultaneously, the rubber cock stem shifts out from the venthole in, makes the gas that the patient was expired passively can follow the venthole and discharge, avoids the expiration of patient to enter into in the gas blowing pipe.

Description

Oropharynx respiratory tube capable of avoiding reverse infection

Technical Field

The utility model relates to the technical field of auxiliary expiration equipment, in particular to an oropharynx breathing tube capable of avoiding reverse infection.

Background

When first aid, the function of maintaining good ventilation of the oropharynx of a patient is the key of achieving respiratory resuscitation success of the patient, direct or indirect mouth-to-mouth respiration is still a common method of respiratory resuscitation, but the method is easy to spread respiratory diseases and cause the reflux of gastric contents of the sick and wounded, the effect of assisting mechanical respiration by an endotracheal tube is good, but in a first-line rescue site, the effect is often difficult to achieve due to objective environmental conditions and limited time.

The patent with the publication number of CN203107904U discloses an oropharyngeal breathing tube, which comprises a gas blowing pipe, a valve chamber, a face mask and an oropharyngeal tube, wherein the valve chamber is connected between the gas blowing pipe and the oropharyngeal tube, a filtering membrane and a valve are arranged in the valve chamber, a vent hole is arranged on the side wall of the valve chamber, the face mask is arranged on the oropharyngeal tube, the arc-shaped concave surface of the face mask faces one side of the oropharyngeal tube, the filtering membrane is arranged at the gas inlet hole of the valve chamber, two valves are tightly attached to the filtering membrane like a double-leaf door and are arranged, and one valve is completely opened and then is lapped on the end face of the vent hole on the side wall of the valve chamber to close the vent hole. The utility model has simple operation, small volume, light weight and convenient carrying, and can effectively reduce the probability of the infection of respiratory diseases between the rescue personnel and the sick and wounded.

When the technical scheme is implemented, firstly, the oropharyngeal tube is inserted into the pharyngeal portion from the lingual surface and the palate of a patient, the mask covers the mouth and the nose of the patient to prevent gas from overflowing, when the mouth of a rescuer begins to blow through the gas blowing pipe, the valve is opened under the action of the gas flow when the gas passes through the valve chamber, the vent hole on the side wall of the valve chamber is blocked, the vent hole enters the lung of the patient along the oropharyngeal tube after passing through the filtering membrane along the opened valve, when the patient exhales passively, the valve resets to close the air inlet hole of the valve chamber, the vent hole on the side wall of the valve chamber is opened, the gas flow is discharged from the vent hole and the vent hole without entering the gas blowing pipe any more, but when the mouth of the rescuer begins to blow through the gas blowing pipe, in order to ensure that the valve can block the vent hole on the side wall of the valve chamber under the action of air flow, the ventilation amount is proper when the patient is blown, the patient cannot be blown excessively, the ventilation amount is generally 500-600ml, and one second is blown each time, namely, one second is blown and two seconds are spaced, therefore, although the technical scheme can effectively reduce the probability of infection of respiratory diseases between a rescue person and a sick and wounded, the ventilation hole is difficult to block by the valve when the patient is blown, and part of blown air is discharged from the vent hole to seriously influence the success rate of respiratory resuscitation.

Disclosure of Invention

The utility model aims to provide an oropharynx breathing tube capable of avoiding reverse infection so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a avoid reverse infection's oropharynx respiratory tube, includes the gas blow pipe and prevents reverse expiration mechanism, prevent reverse expiration mechanism includes the cylindricality casing, vertically be equipped with the air duct in the cylindricality casing, the bottom of gas blow pipe is connected on the cylindricality casing and with the top intercommunication of air duct, the bottom fixedly connected with gas guide pipe of cylindricality casing, just the gas guide pipe with the bottom intercommunication of air duct, the outer wall fixedly connected with of gas guide pipe bottom is used for preventing the face guard of gaseous excessive, the bottom of gas guide pipe is connected with the oropharynx pipe that is used for inserting patient's oropharynx portion;

the cylindrical shell is horizontally provided with a rectangular movable groove and a rectangular limiting groove which are mutually communicated, the cross section size of the rectangular limiting groove is larger than that of the rectangular movable groove, the rectangular movable groove is communicated with the air guide channel, a rectangular movable rod is inserted in the rectangular movable groove in a sliding manner, the front end of the rectangular movable rod is provided with a pressing plate, the rear end of the rectangular movable rod is provided with an anti-slip block, and the anti-slip block is positioned in the rectangular limiting groove;

the outer wall of the cylindrical shell is provided with an air outlet hole at a position right below the rectangular movable groove, the air outlet hole is communicated with the air guide channel, a fixed protruding block is vertically arranged at the bottom of the rectangular movable rod and close to the front end downwards, a rubber plug which can be movably inserted and blocked in the air outlet hole is arranged at the rear side of the fixed protruding block, and when the rectangular movable rod is not pressed, the rubber plug is positioned outside the air outlet hole;

the vent hole is formed in the rectangular movable rod, when the rectangular movable rod is completely pressed, the rear side of the fixing lug abuts against the outer wall of the cylindrical shell, the vent hole is communicated with the air guide channel, and the rubber plug is inserted into the air outlet hole.

Preferably, the middle part of cylindricality casing outer wall rear side is equipped with the hollow projection of rectangle, just the hollow projection of rectangle communicates with the rectangle spacing groove, transversely be equipped with the spring in the hollow projection of rectangle, just the front end of spring with the anti-disengaging block is connected, works as when the rectangle movable rod is pressed, anti-disengaging block sliding connection is in the hollow projection of rectangle.

Preferably, finger grooves are formed in the positions, close to the upper side and the lower side of the rectangular hollow convex column, of the rear side of the outer wall of the cylindrical shell, when the reverse exhalation prevention mechanism is used, the thumb of a rescuer needs to press the pressing plate, and the index finger and the middle finger can be placed on the two finger grooves respectively, so that the rescuer can press the pressing plate conveniently.

Preferably, the both sides of face guard are equipped with the bandage connecting block of symmetric distribution, the bandage connecting block is used for being fixed with the bandage, and two bandage connecting blocks tie the bandage respectively, then wind two bandages to the brain behind the patient and tie up, and then use the bandage will the face guard is fixed in patient's oral and nasal department, the bottom of face guard is equipped with the silica gel cushion along edge circumference, works as the face guard is dressed at patient's face, the silica gel cushion closely laminates with patient's facial skin, and then avoids gaseous excessive.

Preferably, the outer wall of the air blowing pipe and the position close to the top end are provided with anti-drop rings, when a rescuer uses the air blowing pipe, the anti-drop rings are positioned in the mouth of the rescuer, the anti-drop rings are used for preventing the end part of the air blowing pipe from sliding off from the mouth of the rescuer, the anti-drop rings are positioned in the mouth of the rescuer, and when the rescuer blows, the anti-drop rings are propped against teeth, so that the air blowing pipe is prevented from being separated from the mouth of the rescuer.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the rescuer blows, the thumb of the rescuer presses the pressing plate to enable the vent hole to be communicated with the air guide channel, and the rubber plug seals the air outlet hole, so that air enters the lung of a patient from the air blowing pipe, the air guide channel, the air guide pipe and the oropharynx tube in sequence; when the person of saving oneself finishes blowing, the thumb of the person of saving oneself loosens the clamp plate, and under the effect of spring, the rectangle movable lever resets and removes, cuts off the middle part of air guide channel, simultaneously, the rubber cock stem shifts out from the venthole in, makes the gas that the patient was passively exhaled can follow the venthole and discharge, avoids the patient exhale to enter into in the gas blowing pipe, prevents to take place the person of saving oneself by the condition of infection respiratory disease.

2. The outer wall of the air blowing pipe is provided with an anti-drop ring, so that the air blowing pipe can be prevented from being blown out when a rescuer blows.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of the present utility model;

FIG. 3 is a second schematic diagram of a portion of the structure of the present utility model;

FIG. 4 is a schematic view of the internal assembly structure of the cylindrical housing of the present utility model;

FIG. 5 is a schematic view of a portion of the reverse exhalation preventing mechanism according to the present utility model;

FIG. 6 is a second schematic view of a portion of the reverse exhalation preventing mechanism of the present utility model.

In the figure: the device comprises an air blowing pipe 1, an anti-drop ring 10, an anti-reverse expiration mechanism 2, a cylindrical shell 20, an air guide channel 200, an air outlet 201, a rectangular movable groove 202, a rectangular limiting groove 203, a finger groove 204, a rectangular hollow convex column 21, a rectangular movable rod 22, an air vent 220, a fixing lug 23, a rubber plug 24, a pressing plate 25, an anti-drop sliding block 26, a spring 27, an air guide pipe 3, a mask 4, a binding band connecting block 40, a silica gel cushion 41 and an oropharyngeal tube 5.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-6, the present utility model provides a technical solution:

an oropharyngeal breathing tube for preventing reverse infection comprises a gas blowing tube 1 and a reverse exhalation preventing mechanism 2. The reverse expiration prevention mechanism 2 prevents the expired air from entering the mouth of the rescuer through the air blowing pipe 1 when the patient passively exhales, thereby avoiding the cross infection of the respiratory tract diseases;

the reverse-exhalation preventing mechanism 2 comprises a cylindrical shell 20, the bottom end of an air blowing pipe 1 is fixedly connected to the top of the cylindrical shell 20, an air guide channel 200 is vertically arranged in the cylindrical shell 20, the bottom end of the air blowing pipe 1 is connected to the cylindrical shell 20 and is communicated with the top end of the air guide channel 200, an air guide pipe 3 is fixedly connected to the bottom of the cylindrical shell 20, the top end of the air guide pipe 3 is communicated with the bottom end of the air guide channel 200, and the air blowing pipe 1 is communicated with the air guide pipe 3 through the air guide channel 200;

the outer wall fixedly connected with of air duct 3 bottom is used for preventing the excessive face guard 4 of gas, and the nose position of face guard 4 is soft, can supply the person of saving oneself to pinch the nose of patient, and the time of avoiding saving oneself to blow is excessive, and is also more sanitary, and the bottom of air duct 3 is connected with the oropharynx pipe 5 that is used for inserting patient's oropharynx portion, inserts the oropharynx pipe 5 from hurting patient's lingual surface and upper jaw between when using, and the afterbody is between upper and lower dentition, and face guard 4 covers patient's oronose.

In this embodiment, a rectangular movable slot 202 and a rectangular limiting slot 203 are horizontally disposed on the cylindrical housing 20, the cross-sectional dimension of the rectangular limiting slot 203 is larger than that of the rectangular movable slot 202, the rectangular movable slot 202 is communicated with the air guide channel 200, and a rectangular movable rod 22 is slidably inserted into the rectangular movable slot 202. The rectangular movable rod 22 is used for isolating the air guide channel 200 in a normal state, that is, when the rectangular movable rod 22 is not pressed, the upper end and the lower end of the air guide channel 200 are not communicated, so that the air blowing pipe 1 and the air guide pipe 3 are not communicated.

The front end of rectangle movable rod 22 is equipped with pressing plate 25, and rectangle movable rod 22 rear end is provided with anticreep slider 26, and anticreep slider 26 is located rectangle spacing groove 203, pressing plate 25 supplies the person of saving oneself thumb to press the use, the person of saving oneself presses pressing plate 25 with the thumb, promote rectangle movable rod 22 backward movement, rectangle movable rod 22's rear end is equipped with the anticreep slider 26 of sliding connection in rectangle spacing groove 203, the length of anticreep slider 26 rear side is greater than the length of rectangle movable rod 22 rear side, avoid rectangle movable rod 22 to follow rectangle movable groove 202 internal slip.

Specifically, the outer wall of the cylindrical shell 20 and the position right below the rectangular movable groove 202 are provided with the air outlet holes 201, the air outlet holes 201 are communicated with the air guide channel 200, the bottom of the rectangular movable rod 22 and the position close to the front end are downwards and vertically provided with the fixing convex blocks 23, and the rear side of the fixing convex blocks 23 is provided with the rubber plug 24 which can be movably inserted and blocked in the air outlet holes 201. When the rectangular movable rod 22 is not pressed, the rubber plug 24 is positioned outside the air outlet hole 201, so that the patient's expiration can be discharged, when the patient passively exhales, the patient's expiration enters the air guide channel 200 from the oropharyngeal tube 5, and the middle part of the air guide channel 200 is blocked by the rectangular movable rod 22, so that the patient's expiration is discharged from the air outlet hole 201, and the patient's expiration is prevented from entering the air blowing tube 1.

Further, a vent hole 220 is formed at the top of the rectangular movable rod 22 and near the middle, and when the rectangular movable rod 22 is completely pressed, the rear side of the fixing projection 23 abuts against the outer wall of the cylindrical housing 20, the vent hole 220 is communicated with the air guide channel 200, and the rubber plug 24 is inserted into the air outlet 201. The fixed lug 23 can play a limiting effect on the movement of the rectangular movable rod 22, the dislocation of the vent hole 220 and the air guide channel 200 caused by excessive pressing is avoided, the vent hole 220 is communicated with the air guide channel 200, the air blowing pipe 1 is communicated with the air guide pipe 3, meanwhile, the air outlet hole 201 is sealed, the air blown out by a rescuer is prevented from overflowing from the air outlet hole 201, and the air blown out by the rescuer is ensured to enter the lungs of a patient.

Further, the middle part of cylindricality casing 20 outer wall rear side is equipped with the hollow projection 21 of rectangle, and the front side of the hollow projection 21 of rectangle is open structure, and the hollow projection 21 of rectangle communicates with rectangle spacing groove 203, transversely is equipped with spring 27 in the hollow projection 21 of rectangle, and spring 27's front end is connected with anti-disengaging slide 26, and when rectangle movable rod 22 was pressed, anti-disengaging slide 26 sliding connection was in the hollow projection 21 of rectangle, and spring 27 is compressed, makes rectangle movable rod 22 can reset after losing external force to the person of saving oneself uses conveniently.

Further, finger grooves 204 are formed in the positions, close to the upper side and the lower side of the rectangular hollow convex column 21, of the rear side of the outer wall of the cylindrical shell 20, when the reverse exhalation preventing mechanism 2 is used, the thumb of a rescuer needs to press the pressing plate 25, and the index finger and the middle finger can be respectively placed on the two finger grooves 204, so that the rescuer can conveniently press the pressing plate 25.

Further, the two sides of the mask 4 are provided with symmetrically distributed strap connecting blocks 40, the strap connecting blocks 40 are used for being fixed with straps, the two strap connecting blocks 40 are respectively tied with the straps, then the two straps are wound to the back brain of a patient and are tied tightly, the mask 4 is further fixed at the mouth and nose of the patient by using the straps, a silica gel cushion 41 is arranged at the bottom of the mask 4 along the periphery, and when the mask 4 is worn on the face of the patient, the silica gel cushion 41 is tightly attached to the facial skin of the patient, so that gas overflow is avoided.

Further, the outer wall of the air blowing pipe 1 and the position close to the top end are provided with the anti-slip ring 10, when a rescuer uses the air blowing pipe 1, the anti-slip ring 10 is positioned in the mouth of the rescuer, the end part of the air blowing pipe 1 is prevented from slipping from the mouth of the rescuer by the anti-slip ring 10, when the rescuer blows, the anti-slip ring 10 is propped against teeth, so that the air blowing pipe 1 is prevented from disengaging from the mouth of the rescuer.

When the oropharynx breathing tube avoiding reverse infection in the embodiment is used, firstly, the oropharynx tube 5 is inserted into the pharynx part from the position between the lingual surface and the upper jaw of a patient, the tail part is arranged between the upper dentition and the lower dentition, the mask 4 covers the mouth and the nose of the patient, the mask 4 is fixed on the face of the patient by using a binding belt, then a rescuer holds the air blowing tube 1 in one hand and holds the reverse exhalation preventing mechanism 2 with one hand, the thumb presses the pressing plate 25 until the fixing lug 23 abuts against the cylindrical shell 20, at the moment, the vent hole 220 is communicated with the air guide channel 200, the rubber plug 24 seals the air outlet hole 201, and then the rescuer begins to blow air to enable the air to enter the lung of the patient from the air blowing tube 1, the air guide channel 200, the air guide tube 3 and the oropharynx tube 5 in sequence; when the patient exhales passively, the person of saving oneself loosens the clamp plate 25, and under the effect of spring 27, rectangle movable rod 22 resets and removes, cuts off the middle part of air guide channel 200, simultaneously, rubber cock stem 24 shifts out from the venthole 201, makes the gas that the patient exhales passively can follow venthole 201 and discharges, avoids the patient exhales and enters into in the gas blowing pipe 1, prevents to take place the condition that the person of saving oneself is infected with respiratory disease.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An oropharyngeal breathing tube for avoiding reverse infection, which is characterized in that: the device comprises an air blowing pipe (1) and an anti-reverse expiration mechanism (2), wherein the anti-reverse expiration mechanism (2) comprises a cylindrical shell (20), an air guide channel (200) is vertically arranged in the cylindrical shell (20), the bottom end of the air blowing pipe (1) is connected to the cylindrical shell (20) and is communicated with the top end of the air guide channel (200), an air guide pipe (3) is fixedly connected to the bottom of the cylindrical shell (20), the air guide pipe (3) is communicated with the bottom end of the air guide channel (200), a mask (4) for preventing gas from overflowing is fixedly connected to the outer wall of the bottom end of the air guide pipe (3), and an oropharynx pipe (5) for being inserted into the oropharynx of a patient is connected to the bottom end of the air guide pipe (3);

the cylindrical shell (20) is horizontally provided with a rectangular movable groove (202) and a rectangular limiting groove (203) which are mutually communicated, the cross section size of the rectangular limiting groove (203) is larger than that of the rectangular movable groove (202), the rectangular movable groove (202) is communicated with the air guide channel (200), a rectangular movable rod (22) is slidably inserted in the rectangular movable groove (202), the front end of the rectangular movable rod (22) is provided with a pressing plate (25), the rear end of the rectangular movable rod (22) is provided with an anti-slip block (26), and the anti-slip block (26) is positioned in the rectangular limiting groove (203);

the air outlet hole (201) is formed in the outer wall of the cylindrical shell (20) and is positioned right below the rectangular movable groove (202), the air outlet hole (201) is communicated with the air guide channel (200), a fixing lug (23) is vertically arranged at the bottom of the rectangular movable rod (22) and close to the front end downwards, a rubber plug (24) which can be movably inserted and blocked in the air outlet hole (201) is arranged at the rear side of the fixing lug (23), and when the rectangular movable rod (22) is not pressed, the rubber plug (24) is positioned outside the air outlet hole (201);

the rectangular movable rod (22) is provided with a vent hole (220), when the rectangular movable rod (22) is completely pressed, the rear side of the fixed protruding block (23) abuts against the outer wall of the cylindrical shell (20), the vent hole (220) is communicated with the air guide channel (200), and the rubber plug (24) is inserted into the air outlet hole (201).

2. The oropharyngeal breathing tube avoiding reverse infection of claim 1 wherein: the middle part of cylindricality casing (20) outer wall rear side is equipped with rectangle hollow projection (21), just rectangle hollow projection (21) and rectangle spacing groove (203) intercommunication, transversely be equipped with spring (27) in rectangle hollow projection (21), just the front end of spring (27) with anticreep slider (26) are connected, works as when rectangle movable rod (22) are pressed, anticreep slider (26) sliding connection is in rectangle hollow projection (21).

3. The oropharyngeal breathing tube avoiding reverse infection of claim 2 wherein: finger grooves (204) are formed in the rear side of the outer wall of the cylindrical shell (20) and close to the upper side and the lower side of the rectangular hollow convex column (21).

4. The oropharyngeal breathing tube avoiding reverse infection of claim 1 wherein: the two sides of the face mask (4) are provided with symmetrically-distributed binding band connecting blocks (40), the binding band connecting blocks (40) are used for being fixed with binding bands, a silica gel cushion (41) is arranged at the bottom of the face mask (4) along the periphery of the edge, and when the face mask (4) is worn on the face of a patient, the silica gel cushion (41) is tightly attached to the skin of the face of the patient.

5. The oropharyngeal breathing tube avoiding reverse infection of claim 1 wherein: the utility model discloses a rescue person's gas blowing pipe, including gas blowing pipe (1), the outer wall of gas blowing pipe (1) and be close to the position on top be equipped with anticreep ring (10), when rescue person used gas blowing pipe (1), anticreep ring (10) are used for preventing the tip of gas blowing pipe (1) from slipping in the rescue person's mouth.