Biliary drainage tube with verification channel

Abstract

The invention discloses a biliary drainage tube with a verification channel. The biliary drainage tube comprises a tube body, wherein the tube body comprises two isolated channels including a main drainage channel and the verification channel, the main drainage channel and the verification channel are axial through tube bodies, the main drainage channel is provided with a main drainage hole, the verification channel is provided with a verification hole, and the main drainage hole and the verification hole are located in the head portion of the tube body and are not communicated in the tube body. The in-place situation of the biliary drainage tube can be verified in the biliary drainage tube feeding process, additional risks brought by re-puncture are avoided, the operation time is shortened, and patients' pain is relieved.

Description

technical field

[0001] The invention relates to a medical device, in particular to a bile drainage tube. Background technique

[0002] Percutaneous transhepatic biliary puncture and drainage is performed through percutaneous transhepatic puncture of the bile duct, using a guide wire and a sheath to guide the bile drainage tube into the gallbladder or biliary tract, and then withdrawing the puncture needle, guide wire and sheath, and then extracting bile through negative pressure. The existing bile drainage tube has only one drainage channel, which has the following defects: due to the puncture angle and the problem that the channel is occupied by the guide wire during the insertion of the drainage tube, it is impossible to judge whether the drainage tube is in place by suctioning bile. The guide wire and sheath have been withdrawn, and when the drainage tube is found not in place during suction, the drainage tube cannot continue to be fed in, and the drainage tube can only b...

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