CN205307544U - Disposable double -balloon laryngeal mask - Google Patents

Abstract

The utility model relates to a disposable double-airbag laryngeal mask, which belongs to the field of medical equipment. On the basis of the existing laryngeal mask, an auxiliary airbag (8), an auxiliary airbag valve (9), an auxiliary airbag ventilation tube (10), and an auxiliary airbag ventilation tube (10) are added. Tracheal opening (11) and sub-balloon linear base (12). Its advantages are as follows: the disposable double-airbag laryngeal mask of the utility model is simple in structure and easy to use, can realize smooth sputum suction, and does not affect the ventilation function of the existing laryngeal mask, and successfully solves the problem of using the laryngeal mask in the prior art. Difficulty in suctioning sputum in the trachea of patients under general anesthesia.

Description

Disposable double air bag laryngeal mask

technical field

The utility model relates to the technical field of medical instruments, in particular to a disposable double-air bag laryngeal mask.

Background technique

Patients often use face mask, laryngeal mask and endotracheal tube for assisted ventilation under general anesthesia. The laryngeal mask is an airway management tool between the face mask and the endotracheal tube, and has its unique advantages. Compared with the tracheal tube, the laryngeal mask is less irritating to the patient, and generally does not cause large fluctuations in the blood pressure and heart rate of the patient during the induction period and recovery period of general anesthesia, and minimizes hemodynamic changes caused by airway control during anesthesia. Patients tolerated it well. Moreover, the laryngeal mask is simple to operate, easy to put in, does not need a laryngoscope to expose the glottis, has less stimulation to the epiglottis, and can reduce the incidence of postoperative sore throat, hoarseness, and laryngeal edema.

But the laryngeal mask also has its own shortcomings and deficiencies. For example, there is a risk of aspiration, flatulence caused by air leakage, limited surgical position and surgical time, and difficulty in aspiration. Therefore, the use of laryngeal masks should be avoided as much as possible for people at risk of aspiration. During the use of the laryngeal mask, the upper abdomen of the patient is closely observed, and gastric flatulence can be prevented by inserting a gastric tube. For patients with long-term operation, the pressure around the air bag can be intermittently reduced to prevent long-term compression and ischemia of the pharyngeal mucosa. However, during the use of the laryngeal mask, when the patient has a lot of airway secretions, the suction tube is inserted from the ventilation catheter and advances along the back wall of the ventilation mask. The suction tube will be against the angle between the trachea and the surrounding air bag, and cannot enter the airway smoothly. Sputum suction, the current clinical problem has not been effectively resolved, limiting the scope of use of the laryngeal mask.

There are many reports about the improvement of the laryngeal mask in scientific papers and patent documents. For example, the Chinese patent document CN203525102U discloses a laryngeal mask ventilation tube device, which includes a ventilation tube, a drainage tube and a hollow mask bag with an opening at the bottom. The rear end of the cuff is connected to the ventilation tube and the drainage tube. The front end of the hollow cuff is provided with a drainage port that is in fluid communication with the drainage tube. A vent port for gas communication, the hollow cuff is a one-piece structure comprising an inflatable back mask, a drainage tube in the mask, and an inflatable cuff seal through a one-time molding, and the drainage port is passed through the An in-mask drain is in fluid communication with the drain. Chinese patent document CN200480009598.5 discloses a laryngeal mask, which includes at least one airway tube and a mask portion, the mask portion includes a top surface and a bottom surface, the bottom surface includes a lumen communicating with the inside of the tube, and the top surface includes A closed transition surface, and the cover portion is defined by an inflatable envelope at least on the bottom surface upper periphery, and the cover portion includes a joint throughout the entire inner circumference of the envelope, which faces the inner cavity and is used to provide closure. envelope. But there is no report about a kind of disposable double-air bag laryngeal mask of the present utility model.

Contents of the invention

The purpose of the utility model is to provide a disposable double-airbag laryngeal mask to solve the clinical problem of difficulty in sucking sputum when using the laryngeal mask for patients under general anesthesia.

In order to achieve the above object, the technical solution adopted by the utility model is: a disposable double-airbag laryngeal mask, the disposable double-airbag laryngeal mask is composed of a ventilator interface (1), a ventilation catheter (2), surrounding airbags (3 ), ventilation cover (4), surrounding airbag valve (5), surrounding airbag ventilation pipe (6), surrounding airbag ventilation pipe opening (7), auxiliary airbag (8), auxiliary airbag valve (9), auxiliary airbag ventilation pipe ( 10), auxiliary air bag ventilation pipe opening (11) and auxiliary air bag linear base (12); the ventilation hood (4) is connected with a ventilation catheter (2), and the end of the ventilation catheter (2) is provided with a ventilator interface (1) The air bag (3) is provided around the ventilation cover (4), and the air bag (3) is connected with the air bag ventilation tube (6), and the air bag ventilation tube opening (7) is positioned in the air bag (3), and the air bag ventilation The end of the trachea (6) is provided with a surrounding airbag valve (5); the inside of the ventilation cover (4) is also provided with an auxiliary airbag (8), and the auxiliary airbag (8) is connected to the ventilation cover (4) through the auxiliary airbag linear base (12) , the auxiliary airbag (8) is connected with the auxiliary airbag ventilator (10), and the end of the auxiliary airbag ventilator (10) is provided with an auxiliary airbag valve (9); the auxiliary airbag ventilator opening (11) is located at the longitudinal shaft centerline.

The upper edge of the auxiliary airbag (8) is V-shaped, and the linear base (12) of the auxiliary airbag (8) forms a line along the center line of the longitudinal axis of the laryngeal mask from the midpoint of the upper edge of the auxiliary airbag (8). The trachea opening (11) is located on the longitudinal axis centerline of the auxiliary air bag (8).

When the auxiliary airbag (8) is inflated, the proximal part is divided into left and right parts, the cross-section is M-shaped, and the distal part communicates with the left and right.

Described secondary air bag (8) length is half of ventilation cover (4), and width matches with ventilation cover (4).

The ventilation tube (10) of the auxiliary airbag is designed integrally with the ventilation catheter (2).

The utility model has the advantages that:

During general anesthesia, patients may experience excessive airway secretions, resulting in limited or even blocked airway ventilation. When using a tracheal tube for ventilation, it is easier to suck out the secretions in the airway, but when using a laryngeal mask for assisted ventilation, the suction tube cannot be smoothly inserted into the airway, making it difficult to suck up the patient's airway secretions in time. In addition, deoxygenation is required during sputum suction. If the sputum suction time is too long, the patient may experience symptoms of hypoxia, which increases the risk of the patient during the perioperative period.

The laryngeal mask of the utility model inflates the secondary air bag when sucking sputum, can form a potential track and eliminate the angle between the trachea and the surrounding air bag, and guide the sputum suction tube to enter the trachea smoothly. After suctioning, exhaust the air in the auxiliary airbag, because it is made of elastic rubber material, the auxiliary airbag will be close to the back wall of the ventilation hood, and no eddy current will be generated during the ventilation process. And the vent tube opening of the auxiliary airbag is located at the center of the distal end of the auxiliary airbag. When inflating, the left and right sides of the proximal end of the auxiliary airbag can be inflated simultaneously to ensure that the suction tube is located at the midline. The utility model can also adjust the inflation volume and pressure of the auxiliary airbag according to the height of the patient's glottis, so as to ensure that the distal part of the auxiliary airbag can effectively eliminate the angle between the surrounding airbag and the trachea, so that the suction tube enters the trachea smoothly. The utility model not only solves the difficulty in sucking phlegm by the laryngeal mask, but also does not affect the ventilating function of the original laryngeal mask.

Description of drawings

Accompanying drawing 1 is the structural representation of a kind of disposable double air bag laryngeal mask of the present utility model.

Accompanying drawing 2 is the schematic diagram that laryngeal mask is inserted into human body in the prior art.

Accompanying drawing 3 is the perspective view of laryngeal mask in prior art.

Accompanying drawing 4 is the side view of laryngeal mask in the prior art.

detailed description

Below in conjunction with embodiment and with reference to accompanying drawing, the utility model is further described.

The reference signs and components involved in the accompanying drawings are as follows:

1 Ventilator interface 2 Ventilation catheter

3 Surrounding air bag 4 Vent hood

5 around the airbag valve 6 around the airbag snorkel

7 Surrounding the opening of the airbag vent tube 8 secondary airbags

9 sets of air bag valves 10 sets of air bag snorkels

11 secondary airbag vent pipe openings 12 secondary airbag linear bases.

In this patent application, the proximal end mentioned is close to the incisor end after the laryngeal mask is inserted, and the distal end is far away from the incisor end.

Embodiment 1 design concept

The disposable double-airbag laryngeal mask of the present utility model is to add a pair of airbags and its attached pipes and valves at the far end of the ventilating mask of the existing laryngeal mask. The auxiliary airbag should be made of rubber material with better elasticity and thinner, and the upper edge of its base is designed in a V shape, and a linear fixed line is designed from the midpoint of the upper edge along the longitudinal axis of the laryngeal mask. objects, so that the proximal midline part of the auxiliary airbag is connected to the ventilation hood. When the auxiliary airbag is inflated, its proximal part is divided into left and right parts by the midline, the cross-section is M-shaped, and the distal part communicates with the left and right. When the sputum is being sucked, the inflated auxiliary airbag can position the suction tube at the midline of the ventilation hood, and can make the suction tube advance along the potential track formed by the proximal end of the auxiliary airbag, and the distal end of the auxiliary airbag can eliminate the angle between the trachea and the surrounding airbag , to further guide the suction tube into the airway.

The auxiliary airbag ventilation duct can be designed with reference to the laryngeal mask around the airbag ventilation duct, and can be designed to be integrated with the ventilation catheter. The auxiliary air bag valve can be designed to be red, and the surrounding air bag valve is blue for easy identification.

Embodiment 2 Disposable double air bag laryngeal mask

Please refer to accompanying drawing 1, accompanying drawing 1 is the structure diagram of the disposable double air bag laryngeal mask of this embodiment. The disposable double air bag laryngeal mask is composed of a ventilator interface (1), a ventilation catheter (2), a surrounding air bag (3), a ventilation mask (4), a surrounding air bag valve (5), a surrounding air bag ventilation tube (6), It is composed of an opening (7), an auxiliary airbag (8), an auxiliary airbag valve (9), an auxiliary airbag ventilation pipe (10), an auxiliary airbag ventilation pipe opening (11) and an auxiliary airbag linear base (12). A ventilation conduit (2) is connected to the ventilation cover (4), and the end of the ventilation conduit (2) is provided with a ventilator interface (1). Around the air bag (4) is provided with around the air bag (3), around the air bag (3) is connected with around the air bag ventilation tube (6), around the air bag ventilation tube opening (7) is located in the surrounding air bag (3), around the air bag ventilation tube The end of (6) is provided with around air bag valve (5), and around air bag valve (5) is blue. Ventilation cover (4) inboard is also provided with auxiliary air bag (8), and auxiliary air bag (8) is elastic better, thinner rubber material, and auxiliary air bag (8) upper edge is designed into V shape, and auxiliary air bag (8) vertically The length is half of the ventilation mask (4), the width matches the ventilation mask (4), and a linear fixture is set along the centerline of the longitudinal axis of the laryngeal mask from the midpoint of the upper edge—the linear base of the secondary airbag (12), the proximal midline part of the auxiliary air bag (8) is connected to the ventilation cover (4). The auxiliary airbag (8) is connected with the auxiliary airbag ventilation pipe (10), and the auxiliary airbag valve (9) is arranged at the end of the auxiliary airbag ventilation pipe (10). The auxiliary airbag valve (9) is red, and the auxiliary airbag ventilation pipe opening (11) Located on the longitudinal axis centerline of the secondary airbag (8). When the auxiliary airbag (8) is inflated, the proximal part is divided into left and right parts, the cross-section is M-shaped, and the distal part communicates with the left and right.

Embodiment 3 usage method

During clinical use, before anesthesia, the required length of the sputum suction tube inserted from the ventilation catheter (2) to the distal end of the auxiliary airbag (8) is measured and marked. Thereafter, implement anesthesia and insert the utility model. By inflating the surrounding airbag (3) around the airbag valve (5), the ventilator interface (1) is connected with the ventilator for conventional ventilation. Before the patient has increased airway secretions, rales in the lungs and the end of anesthesia, insert the sputum suction tube along the ventilation catheter (2) into the length measured before anesthesia to ensure that the sputum suction tube can reach the position of the auxiliary air bag (8). Inflate the secondary airbag (8) through the secondary airbag valve (9). The sputum suction tube should be located at the midline of the proximal end of the auxiliary air bag (8), and then the sputum suction tube should be further inserted. If the insertion is successful, the distal end of the auxiliary air bag (8) can eliminate the angle between the surrounding air bag and the trachea, making the suction tube smooth. Enter the airway; if the insertion of the suction tube is blocked, the distal end of the auxiliary airbag (8) has not completely eliminated the angle between the surrounding airbag and the trachea, and it is necessary to further inflate or deflate the auxiliary airbag (8) through the auxiliary airbag valve (9) , Adjust until the suction tube enters the trachea smoothly. Treat that the sputum suction finishes, withdraw from the sputum suction tube, exhaust the gas in the auxiliary air bag (8) by the auxiliary air bag valve (9). The auxiliary airbag (8) is only inflated when the sputum needs to be sucked. When the laryngeal mask is inserted, pulled out and assisted ventilation, the gas in the auxiliary airbag is exhausted so that it does not affect the ventilation.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and supplements can also be made, and these improvements and supplements are also It should be regarded as the protection scope of the present utility model.

Claims (5)

1. A disposable double-airbag laryngeal mask, characterized in that, the disposable double-airbag laryngeal mask consists of ventilator interface (1), ventilation catheter (2), surrounding airbag (3), ventilation mask (4), Surrounding airbag valve (5), surrounding airbag vent tube (6), surrounding airbag vent tube opening (7), auxiliary airbag (8), auxiliary airbag valve (9), auxiliary airbag ventilating tube (10), auxiliary airbag ventilating pipe opening (11) and secondary air bag linear base (12) form; Ventilation cover (4) is connected with ventilator (2), and the end of ventilator (2) is provided with ventilator interface (1); Around the ventilator (4) A surrounding air bag (3) is provided, and the surrounding air bag (3) is connected with a surrounding air bag ventilation tube (6), and the surrounding air bag ventilation tube opening (7) is positioned in the surrounding air bag (3), and the surrounding air bag ventilation tube (6) is provided with a Surrounding the airbag valve (5); the inside of the ventilation cover (4) is also provided with an auxiliary airbag (8), the auxiliary airbag (8) is connected with the ventilation cover (4) through the auxiliary airbag linear base (12), and the auxiliary airbag (8) is connected with The auxiliary air bag vent pipe (10), the end of the auxiliary air bag vent pipe (10) is provided with an auxiliary air bag valve (9); the auxiliary air bag vent pipe opening (11) is located on the longitudinal axis centerline of the auxiliary air bag (8). 2. The disposable double-airbag laryngeal mask according to claim 1, wherein the upper edge of the auxiliary airbag (8) is V-shaped, and the linear base (12) of the auxiliary airbag (8) is formed from the upper edge of the auxiliary airbag (8). From the midpoint, along the centerline of the longitudinal axis of the laryngeal mask into a line, the opening (11) of the ventilation tube of the auxiliary airbag is located at the centerline of the longitudinal axis of the auxiliary airbag (8). 3. The disposable double-airbag laryngeal mask according to claim 2, characterized in that, when the auxiliary airbag (8) is inflated, the proximal part is divided into left and right parts, the cross-section is M-shaped, and the distal part is left and right. connected. 4. The disposable double-airbag laryngeal mask according to claim 1, characterized in that, the length of the auxiliary airbag (8) is half that of the ventilation mask (4), and the width matches the ventilation mask (4). 5. The disposable double-airbag laryngeal mask according to claim 1, characterized in that, the ventilation tube (10) of the auxiliary airbag and the ventilation catheter (2) are integrally designed.