CN203227163U - Sleeve type oropharyngeal airway for endoscopy - Google Patents

Abstract

The utility model relates to the field of medical devices, the main purpose of which is to provide a cannula-type oropharyngeal airway for endoscopy, so as to solve clinical problems such as airway obstruction during oral digestive endoscopy or operation. The utility model provides a sleeve-type oropharyngeal airway for endoscopy, comprising an anti-bite mouth ring (1) and an oropharyngeal airway sleeve (2); the oropharyngeal airway sleeve (2) A sleeve coil (5) is embedded on the inner wall of the cannula. There is a ventilation and suction channel (7) in the oropharyngeal airway sleeve (2). The proximal end of the ventilation and suction channel (7) is connected to a The ventilating opening of the cannula for the glottic structures (6).

Description

Cannulated oropharyngeal airway for endoscopy

technical field

The utility model relates to the field of medical instruments, in particular to a sleeve-type oropharyngeal airway for endoscopes.

Background technique

At present, a large number of painless transoral digestive endoscopy examinations or operations are realized under the condition of general anesthesia without endotracheal intubation. tube is complete. However, in the state of intravenous anesthesia without endotracheal intubation, the patient is very likely to suffer from airway obstruction due to the tongue falling backward, resulting in fatal accidents of respiratory failure and cardiac and respiratory arrest.

At present, the prevention and treatment of tongue retrotropy mainly lies in the application of oropharyngeal airway or nasopharyngeal airway. However, the existing oropharyngeal airway cannot pass through the digestive endoscope because the caliber is too small during the endoscopic operation.

There is currently no oropharyngeal airway suitable for endoscopic procedures.

Utility model content

The main purpose of the utility model is to provide a cannula-type oropharyngeal airway for endoscopy to solve clinical problems such as airway obstruction during oral digestive endoscopy or operation.

In order to achieve the above purpose, the utility model provides the main technical solution as follows: designing a sleeve type oropharyngeal airway suitable for endoscopic operation.

The utility model provides a sleeve-type oropharyngeal airway for endoscopy, which includes an anti-bite mouth ring and an oropharyngeal airway sleeve; the inner wall of the oropharyngeal airway sleeve is embedded with a sleeve A spring coil, a ventilation and sputum suction channel in the oropharyngeal airway cannula, the proximal end of the ventilation and sputum suction channel is connected with a cannula ventilation opening facing the glottis structure.

The oropharyngeal airway sleeve is a flexible sleeve with a length of 15-19 cm, an inner diameter of 20 mm, and an outer diameter of 23 mm.

In the oropharyngeal airway sleeve, the opening of the distal end is provided with a sleeve collar bayonet, which is used to fix the oropharyngeal airway sleeve on the anti-bite collar.

The sleeve spring coil is a rigid spring, and its function is to avoid suffocation caused by folding of the airway during the operation of the endoscope.

The ventilation and sputum suction channel is preferably arranged on the ventral side of the oropharyngeal airway sleeve, that is, the side close to the patient's front abdomen. The ventilation and sputum suction channel provides oxygen or sputum suction through the cannula ventilation opening.

The utility model can produce different specifications and models according to the specifications of the endoscope and the age and stature of patients, so as to meet the clinical needs.

Herein, the proximal end referred to is the proximal end, which is the end entering the esophagus. The distal end mentioned is the distal end, which is the end close to the oral cavity.

The utility model has the advantages that: when performing digestive endoscopy or operation under intravenous general anesthesia, the oropharyngeal airway sleeve tube of the utility model is slid into the oral cavity along the endoscope and its distal end is fixed on the anti-bite mouth. At the same time, oxygen inhalation or sputum suction can be performed through the ventilation and sputum suction channel, which avoids the risk of suffocation caused by the tongue falling behind the patient, and ensures the safety of digestive endoscopy or operation under intravenous general anesthesia.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Figure 2 is a schematic diagram of the structure inside the oropharyngeal airway sleeve;

Among them: 1 anti-bite mouth ring; 2 oropharyngeal airway sleeve; 3 sleeve mouth ring bayonet; 4 endoscope; 5 sleeve spring coil; 6 sleeve ventilation opening; 7 ventilation suction channel.

Detailed ways

Now in conjunction with embodiment and accompanying drawing, the utility model is further described, but the implementation of the utility model is not limited thereto.

Example 1:

As shown in Figure 1, a kind of sleeve type oropharyngeal airway for endoscope, comprises anti-bite mouth ring 1 and oropharyngeal airway sleeve tube 2; The cannula coil 5 is embedded, and there is a ventilation and sputum suction channel 7 inside the oropharyngeal airway cannula 2, and the proximal end of the ventilation and sputum suction channel 7 is connected with a cannula ventilation opening 6 facing the glottis structure.

The oropharyngeal airway sleeve 2 is a flexible sleeve with a length of 18 cm, an inner diameter of 20 mm, and an outer diameter of 23 mm.

The oropharyngeal airway sleeve 2 is provided with a sleeve collar bayonet 3 at the opening of the distal end, which can fix the oropharyngeal airway sleeve 2 on the anti-bite collar 1 .

Example 2:

In clinical use, the patient bites the anti-bite mouth ring 1 before receiving general anesthesia, and the oropharyngeal airway sleeve 2 is inserted from the anti-bite mouth ring 1, slides into the oral cavity along the endoscope 4 until the throat, pay attention to the sleeve The direction of the ventilation opening 6 is toward the ventral side of the patient, and the ventilation opening 6 of the oropharyngeal airway is facing the glottis after the oropharyngeal airway sleeve 2 has completely entered the oral cavity.

During anesthesia, the oxygen inhalation catheter is placed in the ventilation and sputum suction channel 7. If there is a lot of secretions, the sputum suction tube can be placed in the ventilation and sputum suction channel 7, so as to provide oxygen and sputum suction.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. The utility model does not depart from the spirit and scope of the utility model There will also be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (3)

1. A sleeve-type oropharyngeal airway for endoscopy, comprising an anti-bite mouth ring (1) and an oropharyngeal airway sleeve (2); it is characterized in that the oropharyngeal airway sleeve (2) ) is embedded with a cannula coil (5), and there is a ventilation and suction channel (7) in the oropharyngeal airway cannula (2), and the proximal end of the ventilation and suction channel (7) is connected with a positive Cannula ventilation opening (6) to glottic structures. 2. A sleeve-type oropharyngeal airway for endoscopy according to claim 1, characterized in that the length of the oropharyngeal airway sleeve (2) is 15-19 cm, the inner diameter is 20 mm, and the outer diameter is 23 mm . 3. A sleeve-type oropharyngeal airway for endoscope according to claim 1 or 2, characterized in that, the opening of the distal end of the oropharyngeal airway sleeve (2) is provided with a sleeve Ring bayonet (3).

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