Percutaneous transhepatic puncture choledochoscope

Abstract

The invention belongs to the field of medical instruments and particularly relates to a percutaneous transhepatic puncture choledochoscope which comprises a puncture choledochoscope body and a sheath. The puncture choledochoscope body comprises a needle-like rigid operating end, an operating part, a light source connector, an image output end, and a drainage passage, wherein the needle-like rigid operating end, the operating part, the light source connector and the image output end are mutually communicated, and the drainage passage is used for drainage. The sheath comprises a rigid sheath end, a water inlet passage and a water outlet passage. The rigid sheath end is disposed outside the needle-like rigid operating end. The front end of the needle-like rigid operating end is provided with an optical lens and a fiber-optic output end. The percutaneous transhepatic puncture choledochoscope has the advantage of the puncture needle that the puncture needle can puncture skin and tissue to enter a human body and the advantage that the endoscope provides doctors with inside images, a doctor directly watches a monitor to operate with no need of aimless operation relying on experiences and judgments when puncturing with the percutaneous transhepatic puncture choledochoscope, and surgical safety is improved.

Description

technical field

[0001] The invention belongs to the field of medical devices, in particular to a percutaneous transhepatic choledochoscope. Background technique

[0002] The puncture needle, including a needle core and a needle seat, is graduated and belongs to interventional radiology equipment. During interventional radiology operations, it punctures the skin to further guide interventional radiology equipment into the body. The current puncture needles are divided into: single-wall puncture needles, two-part trocars, three-part trocars, atrial septal puncture needles and peeling puncture needles.

[0003] In addition, someone has also developed a patent No. 201020129258.9, the announcement number is CN201759972U, and the patent name is a biliary puncture device. The biliary puncture device includes a microguide wire and a dilation tube. The expansion tube is a coaxial flexible side hole expansion tube. The inner cavity is divided into an anterior cavity and a posterior c...

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