CN204815254U - Novel binary channels exempts from to aerify laryngeal mask - Google Patents

Abstract

The utility model relates to a laryngeal mask product, in particular to a novel dual-channel air-free laryngeal mask. The technical problem is solved by providing a novel dual-channel air-free laryngeal mask. Provided is a new type of dual-channel air-free laryngeal mask, including a mask, a catheter, a connector, and a drainage tube; the mask is made of a low-hardness elastomer, and a catheter is arranged on the right side of the mask, and the mask is connected to the catheter Connection; a connector is provided under the catheter, and the connector is inserted on the catheter; a drainage tube is nested inside the catheter, and the end of the gastric tube lumen is arranged at the upper left end of the drainage tube, and the lower right end of the drainage tube The head end of the gastric tube lumen is arranged at the place; the upper left end of the drainage tube is set in the left port of the mask, and the lower right end of the drainage tube is fixed on the lower right end of the catheter; a bronchoscope lumen is arranged inside the catheter. A new type of dual-channel air-free laryngeal mask is provided, which can be used clinically for a long time, and can obtain sufficient airway sealing without an inflatable mask.

Description

A new dual-channel air-free laryngeal mask

technical field

The utility model relates to a laryngeal mask product, in particular to a novel dual-channel air-free laryngeal mask.

Background technique

The laryngeal mask is a new type of ventilation device, which was successfully developed in the mid-1980s and used clinically, and was introduced in China in the 1990s. At present, great progress has been made in the use of laryngeal masks, and the scope of application is becoming wider and wider. The laryngeal mask is an effective means to establish a safe airway in general anesthesia. It has many advantages: for example, it is easy to use and can quickly establish an artificial airway; the success rate of placement is high, the success rate of untrained medical staff is 87%, and the total success rate is 99.81%; the ventilation is reliable; the throat and tracheal mucosa can be avoided; Small stimulation, small cardiovascular response; can be used for first aid.

Most of the existing masks are inflatable laryngeal masks. Traditional laryngeal masks use inflatable air to enlarge the mask to seal air leakage gaps. During positive pressure ventilation, there is a risk of reflux and aspiration due to flatulence due to high pressure. Inflatable laryngeal masks Pharyngeal pain and other injuries may occur due to prolonged extrusion of the pharyngeal cavity, and painless fiberoptic bronchoscopy cannot be performed. If it is too high, it may cause ischemic damage to the pharyngeal mucosa, tongue congestion and lingual nerve damage, and may increase the occurrence of postoperative sore throat and hoarseness, which is not conducive to the treatment and recovery of the patient's condition.

Utility model content

(1) Technical problems to be solved

The utility model overcomes the fact that most of the existing masks are inflatable laryngeal masks. Traditional laryngeal masks use inflating methods to make the masks bigger and close air leakage gaps. During positive pressure ventilation, gastric flatulence due to high pressure may cause reflux and aspiration Dangerous, the inflatable laryngeal mask will cause pharyngeal pain and other injuries due to long-term extrusion of the pharyngeal cavity, and painless fiberoptic bronchoscopy cannot be performed. The internal pressure of the standard inflatable mask is too high, which may cause ischemic damage to the pharyngeal mucosa, tongue congestion and lingual nerve damage, and may increase the occurrence of postoperative sore throat and hoarseness. The technology to be solved by this utility model The problem is to provide a novel dual-channel air-free laryngeal mask.

(2) Technical solution

In order to solve the above-mentioned technical problems, the utility model provides such a novel dual-channel air-free laryngeal mask, which includes a mask, a catheter, a joint, and a drainage tube;

The mask is made of low-hardness elastomer. There is a catheter on the right side of the mask. The mask is connected with the catheter. The shape, structure and softness of the mask and the catheter match the tissue around the throat; A groove is arranged on the inner surface, and the conduit communicates with the groove arranged on the inner surface of the cover;

A connector is provided below the catheter, and the connector is inserted into the catheter; a drainage tube is nested inside the catheter, the end of the gastric tube lumen is arranged at the upper left end of the drainage tube, and the end of the gastric tube is arranged at the lower right end of the drainage tube. There is the head end of the gastric tube; the upper left end of the drainage tube is set in the left port of the mask, the lower right end of the drainage tube is fixed on the lower right end of the catheter, and the drainage tube is set above the joint;

The inside of the catheter is provided with a bronchoscope cavity, and a bronchoscope outlet and a bronchoscope inlet are arranged on the bronchoscope cavity, and the bronchoscope cavity passes through the bronchoscope exit and the concave hole provided on the inner side of the cover. The grooves are connected, and the cavity of the bronchoscope is connected with the joint through the inlet of the bronchoscope.

Preferably, the mask and the catheter are directly injection molded.

Preferably, it also includes an air bag, a hose, and an air pump; the air bag is set on the catheter, and the air bag is arranged above the joint. The air bag is fixedly connected to the catheter. The air bag is made of medical-grade silicone material, and the air bag matches the shape of the mouth ; A hose and an air pump are arranged on the lower right side of the airbag, the air pump is arranged on the hose, and the airbag and the air pump are connected through the hose.

Working principle: When the utility model is used clinically, it does not need to inject air to inflate the mask like the inflatable laryngeal mask to maintain the unobstructed airway of the human body.

The mask and catheter of the utility model are made of low-hardness elastic body according to the structure of the pharynx, and the appearance is simple. Although there is no inflatable mask, it can still obtain a good airway seal in use, which can be used for positive pressure ventilation and spontaneous breathing. When the mask is in the correct position, its front end protrusion is just in the opening of the esophagus, so as to facilitate the insertion of the gastric tube.

Therefore when drainage is needed, the gastric tube is inserted from the head end of the gastric tube lumen of the drainage tube, and then drawn from the end of the gastric tube lumen of the drainage tube to the patient's stomach for drainage. When painless bronchoscopy is required, the bronchoscope is inserted from the joint into the inlet of the bronchoscope and then led out from the outlet of the bronchoscope into the patient's trachea for painless inspection.

After the utility model is inserted into the patient's mouth at a set position, the air bag is just below the teeth in the patient's mouth. Restart the air pump to inflate the airbag through the hose, so that the airbag that matches the internal shape of the oral cavity fits tightly in the patient's mouth, so as to achieve the purpose of fixing the utility model, so as to prevent the stomach ache caused by the poor fixation of the utility model and moving up and down. The occurrence of flatulence and reflux aspiration.

(3) Beneficial effect

The utility model provides a novel dual-channel air-free laryngeal mask, which is easy to use, can be quickly and successfully inserted into the dual-channel air-free laryngeal mask, and can be used clinically for a long time. The dual-channel air-free mask is of low hardness. Elastomer, no need to inflate, no risk of cuff pressure increase caused by diffusion of nitric oxide and carbon dioxide, can use dual-channel air-free laryngeal mask to manage painless airway for bronchoscopic examination, simple insertion, bronchoscopic examination It is easy to move in and out, and the non-inflatable front end is soft and less irritating to the surrounding tissues. There is little pharyngeal discomfort and other reactions after surgery, and the comfort is very good. Since the shape of the double-channel air-free laryngeal mask completely conforms to the structure of the inner surface of the pharyngeal cavity, there is no need to inflate An adequate airway seal can be obtained with a hood.

Description of drawings

Fig. 1 is a perspective view structure diagram of the utility model.

Fig. 2 is a schematic diagram of a front sectional view of the utility model.

Fig. 3 is a schematic diagram of the structure of the front view of the utility model.

Fig. 4 is a schematic perspective view of the structure of the utility model.

Fig. 5 is a schematic diagram of the structure of the front view of the utility model.

The marks in the accompanying drawings are: 1-mask, 2-catheter, 3-connector, 4-end of gastric tube lumen, 5-head of gastric tube lumen, 6-bronchoscope outlet, 7-bronchoscope inlet , 8-drainage tube, 9-air bag, 10-hose, 11-air pump.

Detailed ways

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

Example 1

A new type of dual-channel air-free laryngeal mask, as shown in Figure 1-4, includes a mask 1, a catheter 2, a joint 3, and a drainage tube 8; the mask 1 is made of a low-hardness elastomer, and the mask 1 A catheter 2 is arranged on the right side of the body, and the mask 1 is connected to the catheter 2. The shape, structure and softness of the mask 1 and the catheter 2 are matched with the perilarynx tissue; grooves are arranged on the inner side of the mask 1, The conduit 2 communicates with the groove provided on the inner side of the mask 1.

A joint 3 is provided below the catheter 2, and the joint 3 is plugged on the catheter 2; a drainage tube 8 is nested inside the catheter 2, and a gastric tube lumen end 4 is provided at the upper left end of the drainage tube 8, At the lower right end of the drainage tube 8, a gastric tube lumen head end 5 is arranged; the upper left end of the drainage tube 8 is set in the left port of the mask 1, and the lower right end of the drainage tube 8 is fixed on the lower right end of the catheter 2, and the upper left end of the drainage tube 8 is fixed on the lower right end of the catheter 2. 8 is arranged above the joint 3.

The inside of the catheter 2 is provided with a bronchoscope cavity, on which a bronchoscope outlet 6 and a bronchoscope inlet 7 are arranged, and the bronchoscope cavity passes through the bronchoscope outlet 6 and the inside of the cover 1 The grooves provided on the side are connected, and the channel of the bronchoscope is connected with the joint 3 through the entrance 7 of the bronchoscope.

Working principle: When the utility model is used clinically, it does not need to inject air to inflate the mask like the inflatable laryngeal mask to maintain the unobstructed airway of the human body.

The mask 1 and the catheter 2 of the utility model are made of low-hardness elastomers according to the structure of the pharynx, and the appearance is simple. Although there is no inflatable mask, it can still obtain a good airway seal in use, which can be used for positive pressure ventilation and spontaneous breathing. When the mask 1 is in the correct position, its front end protrusion is just in the opening of the esophagus, so as to facilitate the stretching of the gastric tube.

Therefore when drainage is needed, the stomach tube is inserted from the gastric tube lumen head end 5 of the drainage tube 8, and then drawn to the patient's stomach from the gastric tube lumen end 4 of the drainage tube 8 after the drainage tube 8 for drainage. When it is necessary to perform painless bronchoscopy, the bronchoscope is inserted from the joint 3 into the inlet 7 of the bronchoscope and then extracted from the outlet 6 of the bronchoscope into the patient's trachea for painless inspection.

Example 2

A new type of dual-channel air-free laryngeal mask, as shown in Figure 1-5, includes a mask 1, a catheter 2, a joint 3, and a drainage tube 8; the mask 1 is made of a low-hardness elastomer, and the mask 1 A catheter 2 is arranged on the right side of the body, and the mask 1 is connected to the catheter 2. The shape, structure and softness of the mask 1 and the catheter 2 are matched with the perilarynx tissue; grooves are arranged on the inner side of the mask 1, The conduit 2 communicates with the groove provided on the inner side of the mask 1.

A joint 3 is provided below the catheter 2, and the joint 3 is plugged on the catheter 2; a drainage tube 8 is nested inside the catheter 2, and a gastric tube lumen end 4 is provided at the upper left end of the drainage tube 8, At the lower right end of the drainage tube 8, a gastric tube lumen head end 5 is arranged; the upper left end of the drainage tube 8 is set in the left port of the mask 1, and the lower right end of the drainage tube 8 is fixed on the lower right end of the catheter 2, and the upper left end of the drainage tube 8 is fixed on the lower right end of the catheter 2. 8 is arranged above the joint 3.

The inside of the catheter 2 is provided with a bronchoscope cavity, on which a bronchoscope outlet 6 and a bronchoscope inlet 7 are arranged, and the bronchoscope cavity passes through the bronchoscope outlet 6 and the inside of the cover 1 The grooves provided on the side are connected, and the channel of the bronchoscope is connected with the joint 3 through the entrance 7 of the bronchoscope.

As shown in Figure 5, it also includes an air bag 9, a hose 10, and an air pump 11; the air bag 9 is set on the catheter 2, the air bag 9 is arranged above the joint 3, the air bag 9 is fixedly connected to the catheter 2, and the air bag 9 is medical grade Made of silicone material, the airbag 9 matches the shape of the oral cavity; a hose 10 and an air pump 11 are arranged on the lower right of the airbag 9, and the air pump 11 is set on the hose 10, and the airbag 9 and the air pump 11 are connected through the hose 10 .

Working principle: When the utility model is used clinically, it does not need to inject air to inflate the mask like the inflatable laryngeal mask to maintain the unobstructed airway of the human body.

The mask 1 and the catheter 2 of the utility model are made of low-hardness elastomers according to the structure of the pharynx, and the appearance is simple. Although there is no inflatable mask, it can still obtain a good airway seal in use, which can be used for positive pressure ventilation and spontaneous breathing. When the mask 1 is in the correct position, its front end protrusion is just in the opening of the esophagus, so as to facilitate the stretching of the gastric tube.

Therefore when drainage is needed, the stomach tube is inserted from the gastric tube lumen head end 5 of the drainage tube 8, and then drawn to the patient's stomach from the gastric tube lumen end 4 of the drainage tube 8 after the drainage tube 8 for drainage. When it is necessary to perform painless bronchoscopy, the bronchoscope is inserted from the joint 3 into the inlet 7 of the bronchoscope and then extracted from the outlet 6 of the bronchoscope into the patient's trachea for painless inspection.

After the utility model is inserted into the position set in the patient's mouth, the air bag 9 is just below the teeth in the patient's mouth. Restart the air pump 11 to inflate the air bag 9 through the hose 10, so that the air bag 9 that matches the internal shape of the oral cavity fits tightly in the patient's mouth, so as to achieve the purpose of fixing the utility model and prevent the utility model from being fixed up and down. Gastric bloating and reflux aspiration caused by movement.

The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the utility model. It should be pointed out that those skilled in the art can make several modifications, improvements and substitutions without departing from the concept of the present invention, all of which belong to the protection scope of the present utility model. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (3)

1. A novel dual-channel air-free laryngeal mask, characterized in that it includes a mask (1), a conduit (2), a joint (3), and a drainage tube (8); The hood (1) is made of low-hardness elastomer, and a conduit (2) is arranged on the right side of the hood (1), and the hood (1) is connected with the conduit (2), and the hood (1) and the conduit The shape, structure and softness of (2) are all matched with the perilarynx tissue; grooves are arranged on the inner side of the mask (1), and the grooves arranged on the inner side of the catheter (2) and the mask (1) Connected; A connector (3) is arranged below the catheter (2), and the connector (3) is plugged on the catheter (2); a drainage tube (8) is nested inside the catheter (2), and the drainage tube (8) ) at the upper left end of the gastric tube lumen (4), and at the lower right end of the drainage tube (8) is provided with the head end of the gastric tube lumen (5); In the left port of (1), the right lower end of the drainage tube (8) is fixed on the right lower end of the catheter (2), and the drainage tube (8) is arranged on the top of the joint (3); The inside of the catheter (2) is provided with a bronchoscope cavity, and a bronchoscope outlet (6) and a bronchoscope inlet (7) are arranged on the bronchoscope cavity, and the bronchoscope cavity passes through the bronchoscope outlet ( 6) It communicates with the groove provided on the inner side of the cover (1), and the cavity of the bronchoscope communicates with the connector (3) through the bronchoscope inlet (7). 2. A novel dual-channel air-free laryngeal mask according to claim 1, characterized in that, said mask (1) and said conduit (2) are directly injection molded. 3. A novel dual-channel air-free laryngeal mask according to claim 1 or 2, characterized in that it also includes an air bag (9), a flexible pipe (10), and an air pump (11); the air bag (9) is enclosed within On the catheter (2), the air bag (9) is arranged above the joint (3), the air bag (9) is fixedly connected to the catheter (2), the air bag (9) is made of medical grade silicone material, the air bag (9) and the The inner shape of the oral cavity is matched; a flexible pipe (10) and an air pump (11) are arranged on the lower right side of the air bag (9), the air pump (11) is arranged on the flexible pipe (10), and the air bag (9) and the air pump (11) pass through The hose (10) is connected.