CN203226805U - Double-cavity ventilation type endoscopic wrapper - Google Patents

Abstract

The utility model relates to the field of medical instruments, and mainly aims to provide a double-cavity ventilation type endoscopic wrapper in order to solve the clinical problems of regurgitation, aspiration, airway obstruction, respiratory depression and the like when a patient receives peroral digestive endoscopy and treatment such as gastroscopy in anesthesia in the prior art. The double-cavity ventilation type endoscopic wrapper comprises an anti-bite oral ring (1), a main catheter (2), a main catheter sealing ring (3), a ventilation catheter (4), two inflatable airbags and auxiliary pipelines and valves of the inflatable airbags.

Description

Double Lumen Vented Endoscopic Overtube

technical field

The utility model relates to the field of medical instruments, in particular to a double-cavity ventilating endoscopic overtube.

Background technique

There are certain risks for patients undergoing gastroscopy and other oral digestive endoscopy and treatment under anesthesia. This is because the mouth of the esophagus and the mouth of the airway are adjacent to the throat. When the throat is stimulated in a normal awake state, it will cause reflexes such as choking and coughing, thereby preventing the vomit such as gastric juice gushing out of the mouth of the esophagus from flowing into the airway, and anesthesia will eliminate these reflexes. kind of reflection. Therefore, when receiving digestive endoscopy and treatment such as oral gastroscopy under anesthesia, patients may face fatal accidental risks such as aspiration pneumonia caused by aspiration of gastric juice and other digestive tract contents. At present, there is no special and effective method to prevent this fatal risk clinically, mainly relying on the doctor's operating experience and the patient's fasting and water deprivation, but these cannot completely avoid the fatal complication of gastric and intestinal fluid reflux and aspiration .

At the same time, general anesthesia may cause the patient’s tongue to fall backward, causing upper airway obstruction and inhibiting the patient’s spontaneous breathing function. At this time, it is often necessary to interrupt the gastroscopy operation to perform mask-assisted ventilation, or to use tracheal intubation for mechanical ventilation, which has great impact on clinical diagnosis and treatment. Inconvenient, and endotracheal intubation brings the risk of throat structure and tracheal mucosa damage. At present, there is no convenient and effective solution to these problems clinically.

Utility model content

The main purpose of the utility model is to provide a double-chamber ventilated endoscopic overtube to solve the problem of reflux, aspiration, gas Clinical problems such as airway obstruction and respiratory depression.

In order to achieve the above object, the utility model provides the main technical proposal as follows: a double-chamber ventilating endoscopic overtube matching with gastroscope and other peroral digestive endoscopes is designed.

The utility model provides a double-chamber ventilating endoscopic overtube, which includes an anti-bite mouth ring, a main pipe, a main pipe sealing ring, a ventilation pipe, two inflatable air bags and its auxiliary pipes and valves; the main pipe sealing ring Located at the opening of the distal end of the main catheter;

The two inflatable airbags and their associated pipes and valves refer to the main airbag, the main airbag vent pipe, the main airbag valve, and the auxiliary airbag, the auxiliary airbag ventilator, and the auxiliary airbag valve; the main airbag is located at the proximal end of the main conduit. Above; the secondary balloon is located above the opening at the proximal end of the ventilation catheter.

The main catheter has a length of 19-22cm, an inner diameter of 15mm, and an outer diameter of 18mm. It is better to choose a soft casing.

The inner wall of the main catheter is embedded with a main catheter spring coil, and the length is from the opening of the distal end of the main catheter to the proximal end of the main air bag. The spring ring of the main pipe should be made of hard material.

The mouth of the main pipe is also provided near the opening of the distal end of the main pipe to fix the main pipe on the anti-bite ring.

The sealing ring of the main pipe is a rotatable structure, the outer diameter is set to match the inner diameter of the main pipe, and it is fixed on the main pipe by rotating threads. The opening is provided with a hard rubber structure, and the central opening is preferably about 5mm.

The ventilation catheter is located on one side of the main catheter (preferably the left side), the proximal end is located in the middle of two inflatable balloons, and the distal end opening is in the shape of a standard endotracheal catheter opening.

In clinical use, the two inflatable balloons and their associated pipelines and valves can be connected to the inflation valve at the far end of the catheter through the inflation pipeline.

In addition, the main airbag can be set to colorless, and the auxiliary airbag can be set to blue for easy distinction.

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 the patient undergoes endoscopic operation under general anesthesia, the proximal main airbag can avoid aspiration caused by reflux of gastric contents, and the distal auxiliary airbag can close the airway, which is beneficial for assisted breathing or breathing through the ventilation catheter. Sputum suction to avoid airway obstruction or aspiration caused by general anesthesia; the setting of the main catheter coil can prevent the catheter from being discounted or compressed by the balloon inflation to cause stenosis in the catheter; the distal bayonet of the main catheter is conducive to fixing the outer catheter at the mouth To prevent the overtube from moving forward and backward with the gastroscope; the main catheter sealing ring is beneficial to reduce the amount of gas leaking upward during gastroscope operation, so as to reduce the amount of gas inflated, and the sealing ring can be unscrewed when the gastric contents need to be sucked , Suction from the outside of the endoscope, so as to exert the four advantages of preventing reflux and aspiration, preventing airway obstruction and respiratory depression, preventing catheter displacement, discount or stenosis, and preventing air leakage.

Description of drawings

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

Among them: 1 anti-bite mouth ring; 2 main tube; 3 main tube sealing ring; 4 ventilation tube; 5 endoscope; 6 main air bag; 7 main air bag vent tube; 8 main air bag valve; Trachea; 11 pairs of air bag valves; 12 main tube spring coil; 13 main tube mouth ring bayonet.

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 double-chamber ventilation endoscopic overtube includes an anti-bite mouth ring 1, a main catheter 2, a main catheter sealing ring 3, a ventilation catheter 4, two inflatable balloons and their associated pipes and valves, The main conduit sealing ring 3 is located at the opening of the distal end of the main conduit,

The two inflatable airbags and their subsidiary pipelines and valves refer to the main airbag 6, the main airbag vent pipe 7, the main airbag valve 8, the secondary airbag 9, the secondary airbag ventilator 10, the secondary airbag valve 11; the primary airbag 6 It is located above the opening of the proximal end of the main catheter 2 ; the auxiliary airbag 9 is located above the opening of the proximal end of the ventilation catheter 4 . In clinical use, it is connected with the inflation valve at the distal end of the catheter through the inflation pipeline.

The main conduit 2 has a length of 20cm, an inner diameter of 15mm, and an outer diameter of 18mm.

A rigid main catheter coil 12 is embedded in the inner wall of the main catheter, and the length is from the opening of the distal end of the main catheter to the proximal end of the main air bag.

Near the opening of the distal end of the main conduit is provided with a bayonet 13 on the collar of the main conduit, so that the main conduit can be fixed on the anti-bite collar.

Example 2:

In clinical use, the patient bites the anti-bite mouth ring 1 of the present invention before receiving general anesthesia, the main catheter 2 of the present invention is set outside the gastroscope 5, and the gastroscope 5 is inserted into the oral cavity from the anti-bite mouth ring 1 And enter the stomach along the oral cavity, pharynx and esophagus, and then send the main catheter 2 into the esophagus along the gastroscope 5, and fix the main catheter on the inner wall of the mouth ring 1 by using the mouth ring bayonet 13 of the main catheter to prevent the outer tube from moving forward and backward with the gastroscope . Then, gas is inflated into the main air bag 6 from the main air bag valve 8 along the main air bag ventilation tube 7, thereby closing the esophagus, preventing gastric contents from flowing upward, and simultaneously avoiding gas entering the stomach during auxiliary ventilation along the ventilation catheter 4. Gas is inflated from the auxiliary airbag valve 11 along the auxiliary airbag ventilation tube 10 to the auxiliary airbag 9 to close the pharyngeal cavity. The patient's glottis is located between the main air bag 6 and the auxiliary air bag 9, and the main air bag 6 and the auxiliary air bag 9 respectively seal the esophagus and the pharyngeal cavity, forming a closed space in the glottis, which communicates with the outside along the ventilation catheter 4, and can A sputum suction tube is inserted into the confined space along the ventilation catheter 4 to attract secretions, or the ventilation catheter is connected to an anesthesia machine or a ventilator for assisted ventilation. If there is upward reflux of gastric content, the sealing ring at the distal end of the main catheter 2 can be unscrewed, and then the content can be sucked from the main catheter 2 to avoid excessive gushing of reflux or affecting the field of view of the gastroscope.

When the gastroscope operation is finished, the gastroscope 5 can be withdrawn from the main catheter 2 first, and the timing of extubation can be judged according to the patient's spontaneous breathing situation and secretions. Pull out the vented endoscopic overtube together.

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 (4)

1. a two-chamber ventilation type scope trocar sheath is characterized in that, this trocar sheath comprises anti-type mouth circle (1), main pipe (2), main pipe sealing ring (3), airway (4) and two aerating gasbags and subsidiary pipeline and the valve stung; Main pipe sealing ring (3) wherein is positioned at main pipe distal end opening part;

Described two aerating gasbags and subsidiary pipeline and valve refer to main gasbag (6), main gasbag breather (7), main gasbag valve (8), and balloonet (9), balloonet breather (10), balloonet valve (11); Main gasbag (6) is positioned at main pipe (2) proximal part opening top; Balloonet (9) is positioned at airway (4) proximal part opening top.

2. a kind of two-chamber ventilation type scope trocar sheath according to claim 1 is characterized in that described main pipe (2), length 19-22cm, internal diameter 15mm, external diameter 18mm.

3. a kind of two-chamber ventilation type scope trocar sheath according to claim 1 and 2 is characterized in that, is embedded with main pipe turn (12) in described main pipe (2) inwall, and length is to main gasbag (6) proximal part from main pipe (2) distal end opening.

4. a kind of two-chamber ventilation type scope trocar sheath according to claim 1 and 2 is characterized in that, is provided with leading mouth of pipe circle bayonet socket (13) near described main pipe (2) the distal end opening, and main pipe (2) is fixed on anti-stinging on the type mouth circle (1).

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