Abdominal drainage tube

Abstract

The invention discloses an abdominal drainage tube. The abdominal drainage tube comprises a drainage head, wherein the front end of the drainage head adopts a cambered surface; front end holes are formed in the front end of the drainage head; side holes are formed in the side wall of the drainage head; outer grooves and inner grooves are formed in the outer wall and the inner wall of the drainage head at intervals respectively; the side holes are formed in common walls of the outer grooves and the inner grooves, namely the side holes are hidden in the outer grooves. During drainage, even if a body tissue is tightly adhered to the outer wall of the drainage head, the side holes are not blocked due to the relatively narrow outer grooves; in addition, the inner grooves make the inner wall of the drainage head unsmooth, the drainage head is axially pressed, and even if a main passage in the drainage head is closed, the inner grooves can still form a drainage passage, so that smooth drainage is ensured, the drainage efficiency can be effectively improved, and suffering of a patient are reduced.

Description

technical field [0001] The invention relates to a medical device, in particular to an abdominal cavity drainage tube. Background technique [0002] The abdominal cavity drainage tube in the prior art is a silicone round tube, and drainage holes are arranged on the tube head and the tube wall. During the negative pressure drainage process, human tissue is close to the outer wall of the drainage tube, and the drainage hole is easily blocked by human tissue, which in turn causes in-tube drainage. As the negative pressure continues to increase, the drainage tube becomes flattened gradually, and finally the flat inner wall of the drainage tube clings to it and is completely blocked. In this case, it is necessary to replace the drainage tube and re-drainage, which is time-consuming and laborious, and also increases the pain of the patient. [0003] The patent document whose publication number is "CN204446916U" discloses a clogging-resistant peritoneal drainage tube with a filter s...

AI Technical Summary

Problems solved by technology

[0002] The abdominal cavity drainage tube in the prior art is a silicone round tube, and drainage holes are arranged on the tube head and the tube wall. During the negative pressure drainage process, human tissue is close to the outer wall of the drainage tube, and the drainage hole is easily blocked by human tissue, which in turn causes in-tube drainage. As the negative pressure continues to increase, the drainage tube gradually becomes flattened, and finally the flat inner wall of the drainage tube clings to it and is completely blocked. In this case, it is necessary to replace the drainage tube and re-drain the drainage, which is time-consuming and laborious, and also increases the pain of the patient.

[0003] The patent document whose publication number is "CN204446916U" discloses a clogging-resistant peritoneal drainage tube with a filter screen. Its structure is complex, and blood clots, detached human tissue, etc. are attached to the filter screen, which further brings the problem of clogging the filter screen, and does not solve the problem of clogging caused by human tissue clinging to the drainage tube

[0004] The patent document with the publication number "CN202951108U" discloses a peritoneal drainage tube. The technical solution adopted is: a circle of small tubes along the length direction is arranged in the tube wall, and the small tubes form a capillary phenomenon to generate a certain negative pressure. Not only can a small amount of thin body fluid be drained out, but also the small tubes are closely arranged to support the wall of the drainage tube, which effectively prevents the drainage tube from being crushed and folded. However, due to the extrusion of the drainage tube, the tube The wall is thinner, which increases the difficulty of processing, and does not solve the problem of blockage caused by human tissue clinging to the drainage tube

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