CN101268925A - An anti-reflux gastroscope sleeve - Google Patents

Abstract

The invention relates to the technical field of medical devices, and relates to a gastroscope sleeve for preventing reflux and aspiration during gastroscopy, which consists of a sleeve (1), a sleeve fixing button (2), a cardiac air bag (3), and an esophageal air bag (4). 1, the inflation tube (5) of two airbags, the corresponding air pressure indicating airbag (6) and the inflation valve (7). (1.1); the cannula fixing button (2) is located at the top of the cannula, and the top of the cannula is fixed to the top of the gastroscope by the clamping of the biopsy forceps; the cardia airbag (3) can block the cardia after inflation, preventing the reflux of gastric contents After the esophageal air bag (4) is inflated, the sleeve tube can be fixed on the esophagus and prevent the displacement of the cardia air bag; The air pressure indicating air bag (6) is connected to the inflation valve (7) outside the end for the inflation of the air bag. The invention has the advantages of simple structure and convenient use, and can effectively prevent the risk of reflux and aspiration during the gastroscopy examination of patients with a full stomach.

Description

An anti-reflux gastroscope sleeve

technical field

The invention relates to the technical field of medical devices, and relates to a gastroscope sleeve tube for preventing reflux and aspiration during gastroscopic examination of a patient with a full stomach.

Background technique

Gastroscopy is a common inspection item in hospitals now. Its function is to check the upper gastrointestinal tract under direct vision and to perform some treatments. This inspection is a mature inspection project. The adult esophagus is generally 25-30cm long, from the incisors to the end of the esophagus, it is 40-45cm, and the diameter of the adult esophageal lumen is 15-25mm. The esophagus has certain expansibility, and the diameter can reach about 30mm when fully expanded. The diameter of gastroscopy is usually 12mm, and the depth of gastroscopy generally does not exceed 100cm. Since gastroscopy will induce the examinee to vomit, and the need to inflate the digestive tract during the examination will also cause nausea and vomiting, it is usually required that the examinee has no stomach contents before gastroscopy, otherwise the stomach contents may pass through the esophagus and The gap between the gastroscopes flows back into the mouth, and the mouth is the common opening of the esophagus and the airway. The regurgitated stomach contents may be inhaled into the airway by mistake, which may cause aspiration (chemical) pneumonia or suffocation, which will be life-threatening in severe cases . For emergency patients, they are usually in a state of full stomach during rescue, and reflux and aspiration are prone to occur during gastroscopy for such patients, especially in patients with gastrointestinal bleeding (considered a kind of patients with full stomach), Because blood loss may lead to mental changes, throat coughing, swallowing and other protective reflexes are not normal, reflux and aspiration are more likely. At present, clinical methods to reduce the risk of reflux and aspiration during gastroscopy in patients with a full stomach include inserting gastric tube drainage in advance, using drugs to reduce gastric secretions, and delaying the examination time. However, the effect of the above method is not obvious when the gastric content persists. As long as there is gastric content, reflux cannot be completely avoided, so the risk of reflux and aspiration during gastroscopy in patients with a full stomach cannot be completely eliminated. The risk of gastroscopy for patients with a full stomach restricts the scope of gastroscopy.

Contents of the invention

The purpose of the present invention is to provide a gastroscope sleeve for preventing reflux and aspiration during gastroscopy for a patient with a full stomach.

The invention consists of a sleeve, a sleeve fixing buckle, a cardia air bag, an esophageal air bag, an inflatable tube of two air bags and an air pressure indicating air bag. The cannula is in the shape of a hollow cylinder, and the inner diameter matches the outer diameter of the gastroscope so that it can be placed outside the gastroscope; the top end is connected with a cannula fixing buckle, which can be linear or other shapes, and can be clamped by the biopsy forceps of the gastroscope. In order to fix the top of the cannula to the top of the gastroscope when inserted into the esophagus, there is a ring-shaped protrusion at the end of the cannula, which is a holding ring, which is convenient for holding the cannula during operation and prevents it from slipping; the cardia balloon is attached to the outer wall of the cannula head, The largest diameter after inflation is larger than the inner diameter of the esophagus, which is used to block the cardia at the junction of the stomach and the esophagus to prevent gastric contents from flowing back into the mouth through the gap between the esophagus and the gastroscope; the esophageal balloon is attached to the outer wall of the cannula body, and is Tubular, the largest outer diameter is slightly larger than the inner diameter of the esophagus, and the friction between it and the esophageal wall is used to fix the cannula and prevent the displacement of the cardia balloon; two balloon inflation tubes are attached to the outer wall of the cannula, and the front ends are connected to the cardia balloon, The esophageal balloons are connected to each other, and the tail end is free from the tail end of the casing and connected to the inflation valve through the air pressure indicating balloon, which is used to inflate or deflate the air bag, and the inflation degree of the air bag can be known through the air pressure indicating balloon.

When in use, put the gastroscope sleeve on the gastroscope, clamp the sleeve fixing buckle on the top of the sleeve with the biopsy forceps of the gastroscope, insert the gastroscope into the stomach from the oral cavity through the esophagus, inflate the cardia air bag through the air bag inflation tube, and then insert The gastroscope and the gastroscope cannula are pulled back to make the cardia balloon seal the cardia, and then inflate the esophageal balloon through another balloon inflation tube to fix it on the esophagus, and finally loosen the biopsy forceps from the cannula fixing buckle, and the gastroscope can Move, routine gastroscopy. After the inspection, the air in the cardia air sac and esophageal air sac are respectively removed through the air bag inflation tube, and then the gastroscope and the gastroscope cannula are extracted together as usual.

For patients with unclear gastrointestinal bleeding site, if the bleeding site is in the esophagus, the insertion of the present invention can temporarily stop the bleeding by compressing the corresponding bleeding point with the esophageal balloon. If rescue needs, the sleeve tube of the present invention can also play the role of drainage in the stomach similar to the gastric tube.

The invention has the advantages of simple structure, low cost and convenient operation during use, and can effectively solve the risk problem of reflux and aspiration in the process of gastroscopy for patients with full stomach.

Description of drawings

Fig. 1 is the longitudinal sectional structure schematic diagram of the present invention

Detailed ways

Now in conjunction with accompanying drawing, the present invention is described in detail.

The present invention is composed of sleeve tube 1, sleeve tube fixing buckle 2, cardia air bag 3, esophageal air bag 4, inflation tube 5 of two air bags, corresponding air pressure indicating air bag 6 and inflation valve 7. The sleeve 1 is in the shape of a hollow cylinder, the inner diameter matches the outer diameter of the gastroscope, and the end is provided with a holding ring 1.1, which protrudes in the shape of a ring; the sleeve fixing button 2 is located at the top of the sleeve, and is in a linear or other shape; The cardia balloon 3 is attached to the outer wall of the cannula head, and the maximum diameter after inflation is larger than the cardia; the esophagus balloon 4 is attached to the outer wall of the cannula body, and is tubular after inflation, and the maximum outer diameter is slightly larger than the inner diameter of the esophagus; the two balloons are inflated The tube 5 is attached to the outer wall of the cannula, and the front end is respectively connected with the cardia air bag and the esophagus air bag, and the tail end is free from the tail end of the cannula and is connected with the inflation valve 7 through the air pressure indicating air bag 6 for inflating the air bag or Deflate, and the inflation degree of the air bag can be understood by the air pressure indicating balloon 6 .

Example 1.

The casing 1 of the present invention is 85cm long, with an outer diameter of 14mm and an inner diameter of 13mm; the casing fixing buckle 2 is linear, 15mm long, and 1mm in diameter; The diameter is 70mm; the length of the esophageal airbag 4 is 150mm, and the maximum outer diameter after inflation is 60mm; the free ends of the two airbag inflation tubes 5 are 50mm long, the inner diameter is 0.1mm, and the outer diameter is 1mm. The indicator airbags 6 are in different colors to distinguish them.

Example 2.

Sleeve 1 of the present invention is long 85cm, outer diameter 6mm, inner diameter 5mm;

Example 3

The esophagus balloon 4 of the present invention is 80mm long, and the maximum outer diameter after inflation is 60mm;

The present invention can be made into different specifications and models according to the different specifications of the gastroscope and the different users.

Claims (1)

1. back-stream preventing gastroscope casing tube, it is characterized in that constituting by the gas tube (5) of sleeve pipe (1), sleeve pipe clip (2), cardia air bag (3), esophagus air bag (4), two air bags, corresponding air pressure pilot balloon (6) and charge valve (7), sleeve pipe (1) is hollow cylindrical, the external diameter coupling of internal diameter and gastroscope, its tail end is gripper rings (1.1); Sleeve pipe clip (2) is positioned at telescopic top, is wire or other shapes; Cardia air bag (3) is attached to the outer wall of sleeve pipe head, and inflation back maximum gauge is greater than the internal diameter of esophagus; Esophagus air bag (4) is attached to the outer wall of sleeve body, and in a tubular form, maximum outside diameter is slightly larger than the internal diameter of esophagus after the inflation; Two airbag inflation pipes (5) are attached at telescopic outer wall, and front end joins and communicates with cardia air bag, esophagus air bag respectively, and the rear end is free on telescopic tail end and links to each other with charge valve (7) by air pressure pilot balloon (6) outward, is used for to airbag aeration or venting.

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