Percutaneous transhepatic puncture choledochoscope

A technology of choledochoscope and optical lens, which is used in puncture needles, laparoscopes, endoscopes and other directions to achieve the effect of improving safety

Inactive Publication Date: 2013-08-14
GUANGZHOU BAODAN MEDICAL INSTR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biliary tract puncture device can reduce the procedure of puncture operation, reduce the pain and risk of patients, reduce the operatio...

Method used

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  • Percutaneous transhepatic puncture choledochoscope
  • Percutaneous transhepatic puncture choledochoscope

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Embodiment Construction

[0018] Such as figure 1 , figure 2 As shown, the percutaneous transhepatic cholangioscope according to the present invention includes a puncture scope main body 2 and a sheath tube 1 .

[0019] The puncture mirror body 2 includes a needle-shaped hard working end portion 21 , an operating portion 25 , a drainage channel 24 , a light source connector 22 and an image output end 23 .

[0020] The sheath tube 1 includes a hard sheath tube end 11, a water inlet channel 12, and a water outlet channel 13, and the hard sheath tube end 11 is placed on the periphery of the needle-shaped hard working end 21 and closely fitted; The maximum diameter of the needle-shaped hard working end 21 is 6mm.

[0021] Such as figure 1 , figure 2 As shown, the front end of the needle-shaped hard working end 21 is a needle cone with a bevel, and the length of the needle cone with a bevel is 20mm, and the position of the needle cone is provided with an optical lens 231, an optical fiber The output ...

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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...

Claims

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Application Information

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IPC IPC(8): A61B1/07A61B17/34A61B1/313
Inventor 乔铁
Owner GUANGZHOU BAODAN MEDICAL INSTR TECH
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