Hepatobiliary intrahepatic bile duct stone dislodger

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a hepatobiliary intrahepatic bile duct stone dislodger which comprises a sleeving bar. An expansion head is arranged at the front end of the sleeving bar; an expansion air bag is arranged in the middle of the expansion head; a flushing opening is formed in the inner wall of the expansion head; a negative pressure tube is arranged in the sleeving bar; a stone dislodging cover is arranged at the top end of the negative pressure tube; a stone dislodging opening is mounted in the stone dislodging cover; ultrasonic lithotripsy end ports are formed in the two sides of the stone dislodging opening; a tail plate is arranged at the tail of the negative pressure tube; and a negative pressure connecting pipe is arranged at the tail of the tail plate. According to the hepatobiliary intrahepatic bile duct stone dislodger disclosed by the invention, intrahepatic bile duct tissues at the stone position can be expanded by utilizingthe expansion air bag; stones can be conveniently sucked out through the negative pressure tube by means of the stone dislodging cover and the stone dislodging opening; overlarge or irregularly-shaped stones can be conveniently shattered by means of the ultrasonic lithotripsy end ports; and when blood clots on the surfaces of the stones can be flushed away by utilizing the flushing opening, stone fragments can also be flushed away and discharged through the negative pressure tube.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a device for removing intrahepatic bile duct stones in hepatobiliary department. Background technique [0002] Bile duct stones are a kind of clinical cholelithiasis, which can be divided into extrahepatic bile duct stones and intrahepatic bile duct stones according to the location of the stones. Stones located at the lower end of the common bile duct are called extrahepatic bile duct stones; and stones distributed in the bile ducts in the liver lobe are called intrahepatic bile duct stones. Intrahepatic bile duct stones are one of the common diseases in the hepatobiliary department. The most effective way to treat intrahepatic bile duct stones is to remove the stones through surgery. [0003] In the original operation of intrahepatic bile duct stones, stone removal forceps are usually used to clamp out the stones. However, because of the different sizes of s...

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Problems solved by technology

[0003] In the original operation for intrahepatic bile duct stones, stone removal forceps are usually used to clamp out the stones. However, because of the different sizes of stones, the stone removal forceps sometimes cannot hold the stones firmly, and it is easy to make the stones fall. The liver tissue at the mouth is expanded to facilitate stone removal, and if the stone is too large or irregular in shape, it may cause damage to the inner bile duct and affect the surgical effect

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