Postoperative drainage tube

Abstract

The invention relates to the technical field of medical instruments, and discloses a postoperative drainage tube, which comprises an outer sleeve and a main drainage tube, which are arranged in a split mode. The outer sleeve stretches into a bile duct, the main drainage tube is arranged in the outer sleeve so as to enter the bile duct, and through holes are formed in the two ends, in the bile circulation direction in the bile duct, of the end, stretching into the bile duct, of the outer sleeve respectively. The end part, extending into the outer sleeve, of the main drainage tube is of a movable forked structure which can be flexibly inserted into and pulled out of the through holes. The integrated structure thought of a traditional T-shaped drainage tube is subverted, the drainage tube is designed in a split mode, only the linear outer sleeve is in direct contact with the bile duct wall, the main drainage tube stretches into the outer sleeve for drainage after the outer sleeve enters the bile duct, the main drainage tube is firstly withdrawn, then the outer sleeve is withdrawn, the drainage tube can be easily placed in and withdrawn from the bile duct, the bile duct and the sinus tract of the drainage tube are prevented from being damaged, the drainage tube is prevented from shifting, in addition, the main drainage tube can be placed in the outer sleeve after the outer sleeve is in place and the bile duct is sutured, and the main drainage tube is effectively prevented from being sutured.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a postoperative drainage tube for bile drainage. Background technique [0002] Medical T-shaped drainage tubes are widely used in the drainage of extrahepatic and extrahepatic bile ducts after hepatobiliary surgery. 3) promote the formation of drainage tube sinus, and provide safety and channel guarantee for subsequent diagnosis and treatment such as cholangiography, extubation, and bile duct re-exploration. [0003] The traditional T-shaped drainage tube is generally a "T"-shaped integrated pipeline structure, which is made of rubber material. When using it, the "ˉ" part of the T-shape can be trimmed and placed in the direction of the bile duct according to the intraoperative situation. The incised bile duct was sutured and finally connected to the outside of the body through the T-shaped "|" part. Since the transverse cross-section of the "ˉ" part is larger than that ...

AI Technical Summary

Problems solved by technology

Because the transverse cross-section of the "ˉ" part is larger than that of the "|" part, even after trimming, it still causes different degrees of difficulty and influence on the operation of the surgeon during the process of placing the bile duct

[0004] In addition, the T-shaped drainage tube usually needs to be removed at a later stage after successful placement. Since the transverse cross-section of the "ˉ" part is larger than the transverse cross-section of the "|" part, even if it has been trimmed and placed successfully before the bile duct is inserted, the When the tube is removed, because the pressure on the part where the drainage tube contacts the sinus is very high, it will damage or tear the T-tube sinus during rigid extraction, resulting in the risk of T-tube-related biliary fistula

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