CN203226804U - Anti-regurgitation spring type endoscopic wrapper - Google Patents

Abstract

The utility model relates to the field of medical equipment. The utility model provides an anti-backflow spring-type endoscopic overtube, which includes an anti-bite mouth ring (1), a main tube (2), a main tube sealing ring (3), an inflatable The airbag (5), the airbag vent tube (6), the airbag valve (7); the main conduit spring coil (8) is embedded in the pipe wall of the main conduit (2). When a patient undergoes endoscopic examination and treatment under general anesthesia, using the anti-reflux spring-type endoscopic overtube of the utility model can prevent fatal accidents such as aspiration pneumonia caused by reflux and aspiration of gastric contents, thereby improving endoscopic Safety of anesthesia.

Description

Anti-reflux spring type endoscopic overtube

technical field

The utility model relates to the field of medical equipment, in particular to an anti-reflux spring type endoscopic overtube.

Background technique

There are certain risks in 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 when awake, 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 this phenomenon. reflection. Therefore, when receiving digestive endoscopic examination and treatment such as oral gastroscopy under anesthesia, patients may face the risk of aspiration pneumonia and other fatal accidents 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 present, there is also an esophageal sealing cuff designed by using the endoscopic overtube to achieve the purpose of preventing reflux, but there are the following disadvantages: the ordinary hose design may be discounted or compressed, resulting in damage to the endoscope and incomplete closure of the cuff; The tube may cause damage to the esophagus; at the same time, the non-sealing design of the sleeve may cause gas leakage during endoscopic operation and affect the operation. At present, there is no convenient and effective solution to these problems clinically.

Utility model content

The purpose of this utility model is to provide an anti-reflux spring-type endoscopic overtube to solve the problems mentioned in the prior art that reflux aspiration, sleeve compression, and esophageal damage may occur during endoscopic examination and treatment. and gas leaks.

In order to achieve the above object, the technical solution provided by the utility model is:

An anti-reflux spring-type endoscopic overtube, including an anti-bite mouth ring, a main duct, a main duct sealing ring, an inflatable air bag, an air bag ventilation tube, and an air bag valve;

The sealing ring of the main pipe is located at the opening of the distal end of the main pipe;

The inflatable air bag is located above the opening of the proximal end of the main catheter, and is connected to the air bag valve at the distal end of the main catheter through the air bag ventilation tube;

A main catheter spring coil is embedded in the wall of the main catheter, and the length is from the opening of the distal end of the main catheter to the inflatable air bag;

It is advisable that the spring ring of the main guide tube is a hard spring, and the effect is to prevent the main guide tube from being pressed or folded when the inflatable air bag is inflated.

The opening of the distal end of the main conduit is provided with a bayonet ring for the main conduit, so that the main conduit is fixed on the anti-bite ring.

The main catheter is a flexible sleeve with a length of 19-22cm, an inner diameter of 15mm, and an outer diameter of 18mm.

The main pipe sealing ring is a rotatable structure, the outer diameter of the main pipe sealing ring matches the inner diameter of the main pipe, and is fixed on the main pipe by rotating threads;

It is advisable that the central opening of the main pipe sealing ring is about 5 mm; preferably hard rubber is used for the opening.

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

Herein, the proximal end or proximal end referred to is the end that enters the esophagus. The distal end or distal end referred to is the end near the oral cavity.

The utility model has the advantages that: when the patient is undergoing endoscopic operation under general anesthesia, the inflatable air bag can avoid gastric content reflux and aspiration; Catheter inner stenosis and incomplete closure of the cuff; the bayonet at the distal end of the main catheter is conducive to fixing the outer cannula on the mouth ring, preventing the outer cannula from shifting with the advancement and retreat of the gastroscope; the sealing ring of the main catheter is conducive to reducing the upward leakage when the gastroscope is inflated Gas volume, in order to reduce the amount of gas filling, and when it is necessary to suck the contents of the stomach, the sealing ring of the main catheter can be unscrewed, and the suction can be performed from the outside of the endoscope, so as to prevent reflux and aspiration, prevent catheter displacement, discount or stenosis and Advantages such as anti-leakage.

When patients undergo endoscopic examination and treatment under general anesthesia, using the anti-reflux spring-type endoscopic overtube of the present invention can prevent fatal accidents such as aspiration pneumonia caused by reflux and aspiration of gastric contents, thereby improving endoscopic Safety of anesthesia.

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 endoscope; 5 inflatable air bag; 6 air bag vent tube; 7 air bag valve; 8 main tube spring ring;

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, an anti-reflux spring-type endoscopic overtube includes an anti-bite mouth ring 1, a main duct 2, a main duct sealing ring 3, an inflatable air bag 5, an air bag ventilation tube 6, and an air bag valve 7;

The main conduit sealing ring 3 is located at the opening of the distal end of the main conduit 2;

The inflatable air bag 5 is located above the opening of the proximal end of the main catheter 2, and is connected to the air bag valve 7 at the distal end of the main catheter through the air bag ventilation tube 6;

A main catheter coil 8 is embedded in the tube wall of the main catheter 2, and the length is from the opening of the distal end of the main catheter to the inflatable air bag;

The opening of the distal end of the main conduit 2 is provided with a main conduit collar bayonet 9 so that the main conduit 2 is fixed on the anti-bite collar 1 .

The main conduit 2 is a flexible sleeve with a length of 20 cm, an inner diameter of 15 mm, and an outer diameter of 18 mm.

Example 2:

When in use, the patient bites the anti-bite collar 1 before receiving general anesthesia, the main catheter 2 is set outside the gastroscope 4, and the gastroscope 4 is inserted into the oral cavity from the anti-bite collar 1 and enters along the oral cavity, pharynx and esophagus Stomach, then the main catheter 2 is sent into the esophagus along the gastroscope 4, and the main catheter 2 is fixed on the anti-bite type mouth ring 1 by using the main catheter collar bayonet 9, so as to avoid the outer tube of the present utility model from moving forward and backward with the gastroscope.

Subsequently, gas is inflated from the balloon valve 7 along the balloon ventilation tube 6 to the inflatable balloon 5, thereby closing the esophagus and preventing upward reflux of gastric contents.

If there is upward reflux of gastric content, the main catheter sealing ring 3 can be unscrewed, and then the gastric content can be sucked from the main catheter 2 to avoid excessive gushing of reflux or affecting the field of view of the gastroscope.

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. An anti-reflux spring-type endoscopic overtube, characterized in that it includes an anti-bite mouth ring (1), a main catheter (2), a main catheter sealing ring (3), an inflatable air bag (5), an air bag Air pipe (6), air bag valve (7); The main conduit sealing ring (3) is located at the opening of the distal end of the main conduit (2); The inflatable air bag (5) is located above the opening of the proximal end of the main catheter 2, and is connected to the air bag valve (7) at the distal end of the main catheter through the air bag ventilation tube (6); A main catheter spring coil (8) is embedded in the tube wall of the main catheter (2), and the length is from the opening of the distal end of the main catheter to the inflatable air bag; The opening of the distal end of the main conduit (2) is provided with a main conduit collar bayonet (9), so that the main conduit (2) is fixed on the anti-bite collar (1). 2 . The anti-reflux spring-type endoscopic overtube according to claim 1 , wherein the main catheter ( 2 ) is a flexible sleeve with a length of 19-22 cm, an inner diameter of 15 mm, and an outer diameter of 18 mm. 3. An anti-reflux spring-type endoscopic overtube according to claim 1 or 2, characterized in that the main conduit sealing ring (3) is a rotatable structure, and the outer diameter of the main conduit sealing ring is the same as the main The inner diameter of the pipe (2) matches and is fixed on the main pipe by rotating the screw thread.

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