Blocking drainage device for esophagogastric anastomotic leakage

Abstract

The invention discloses an occlusion and drainage device for esophagogastric anastomotic fistula, which comprises a flexible air bag with a jacket structure in which the inner wall and the outer wall are sealed as a whole through a sealing surface. The upper and lower parts of the flexible air bag are respectively expanded to form an upper expansion section and a In the lower expansion section, a drainage tube body is pierced from the top of the upper expansion section in the flexible air bag, and the lower part of the drainage tube body passes out from the middle part of the outer wall of the flexible air bag, and the top of the upper expansion section corresponding to the drainage tube body is provided with a first Flexible sealing pad, the first flexible sealing pad is extended upwards with an air inlet and outlet tube with an air inlet and outlet valve, and a second flexible sealing pad is provided on the outer wall of the flexible air bag corresponding to the drainage tube body, and the second flexible sealing pad is embedded at intervals There are metal pieces. The invention has the advantages of sealing the anastomotic leakage through the flexible air bag, which is tight and comfortable; the abscess cavity in the patient's chest cavity or the abscess cavity in the mediastinum is cleaned and treated through the flushing tube and the drainage tube, effectively ensuring the therapeutic effect.

Description

technical field [0001] The invention relates to medical auxiliary equipment, in particular to an occlusion and drainage device for esophagogastric anastomotic fistula. Background technique [0002] Esophagogastric anastomotic leakage is a serious complication after radical esophagectomy in thoracic surgery, which seriously affects the quality of life and survival of patients. According to the survey, the incidence rate of anastomotic leakage in the neck is about 9%, the incidence rate of anastomotic leakage in the chest is about 5%, and the mortality rate of anastomotic leakage is as high as 50-70%. After the patient has an esophagogastric anastomotic fistula, saliva and stomach contents continuously overflow from the fistula into the thoracic cavity or mediastinum, resulting in protracted thoracic or mediastinal infection, and the infection and consumption of the body seriously threaten the life of the patient. [0003] At present, the treatment methods for esophagogastric...

AI Technical Summary

Problems solved by technology

Conservative treatment often has insufficient drainage, nutritional disorders, and poor curative effect; secondary surgical operations are traumatic and risky, and many patients are difficult to tolerate and accept; interventional treatment is minimally invasive, low cost, good curative effect, and easy for patients to accept and tolerate

However, there is currently no medical device specially used to block the fistula and drain pus. During treatment, an esophageal stent is placed in the esophagus, the fistula is blocked with the stent, and then the pus in the pleural cavity or the pus in the mediastinum is treated. Drainage and Irrigation Therapy

Because the esophageal stent is placed in the esophagus, the foreign body sensation is strong; the stent is easy to shift and the fistula is not tightly sealed, which affects the treatment effect; and the stent must be removed within a short time (two months), otherwise it is easy to cause esophageal restenosis. further increase the patient's risk

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