External suction tube of gastroscope

Abstract

The invention discloses an external suction tube of a gastroscope. The external suction tube comprises a suction tube body, an auxiliary tube and a first connecting part, wherein the suction tube bodycomprises a suction port and an air guide port which are formed in the two ends and a through port which is formed in the middle and is close to the air guide port, the auxiliary tube body is connected with the suction tube body in a through mode through the through port, and the first connecting part is connected with the suction port in a staggered manner; The external suction tube further comprises a plurality of second connecting parts fixedly connected with the suction tube; and the suction tube, the auxiliary tube and the first connecting part are all made of rubber. The suction tube ismoderate in diameter, can easily enter a gastric cavity along with the gastroscope, can freely control the angle through the gastroscope and cannot firmly suck gastric mucosa, the gastroscope does not need to withdraw after blood clots are treated, and related hemostatic treatment can be continued.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a gastroscope external suction tube. Background technique [0002] Acute upper gastrointestinal bleeding is one of the common critical illnesses in the Department of Gastroenterology. It often presents with hematemesis and melena as the main clinical manifestations. The condition is dangerous and the mortality rate is high. According to the etiology, it can be divided into non-variceal bleeding and variceal bleeding . In recent years, with the continuous development of treatment technology, its incidence has shown a significant downward trend, but its related mortality rate is still as high as 2-10%, and about 33% of patients will have recurrent upper gastrointestinal bleeding. growing public health problem. Early endoscopic examination and treatment can significantly reduce the mortality rate and rebleeding rate of upper gastrointestinal bleeding. Therefore, early...

AI Technical Summary

Problems solved by technology

[0006] 1. Turn over and observe the patient on the left side, and then turn the patient on the right side to expose the remaining gastric fundus mucosa; however, patients with acute upper gastrointestinal bleeding often need to complete the treatment under tracheal intubation, and it is difficult and troublesome to turn over first , and the degree is limited, so part of the gastric fundus mucosa still cannot be fully exposed

[0007] 2. Send the blood clot into the intestinal tract with a snare; this scheme is very difficult to operate. It is already very difficult to enter the pylorus with a transparent cap, and it is even more difficult to enter the descending part of the duodenum with a snare with a blood clot , and it is also very inconvenient to separate the blood clot in the descending part. This operation cannot be completed at one time, and repeated operations are required many times

[0008] 3. Use forceful suction or use a snare to remove the blood clot in batches; this plan also requires repeated operations, which is very troublesome. If the bleeding focus under the blood clot is still actively bleeding, the speed of removal may be slower than Not on the speed of bleeding

[0009] 4. Send an external suction tube to suck out blood clots, etc.; this scheme is feasible, but it is difficult to send a large suction tube into the gastric cavity, and a small suction tube cannot effectively attract blood clots, and there are also disadvantages It is difficult to control the suction tube in the gastric cavity, and it is impossible to quickly remove the blood clot. At the same time, because of the strong suction, it is easy to suck the gastric mucosa firmly, which hinders the suction of the blood clot and damages the normal mucosa

The results show that there is currently no clinically effective method for removing blood clots in the fundus of the stomach under early endoscopy

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