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A device for taking bile duct tumor biopsy

A bile duct tumor and catheter technology is applied in the field of surgical sampling devices for bile duct tumor tissue, and can solve the problems of inability to meet clinical needs, no bile duct tumor biopsy sampling device, and low positive rate.

Inactive Publication Date: 2016-11-02
高飞 +2
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Problems solved by technology

[0002] When endoscopic minimally invasive ERCP is used to treat cholangiocarcinoma, it is necessary to determine whether it is cholangiocarcinoma. The existing method is to use biliary tract cytology brush examination for cell immunohistochemistry, but the positive rate of this method is very low and cannot meet the clinical needs
Currently there is no biopsy device for cholangiocarcinoma that can be applied clinically

Method used

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  • A device for taking bile duct tumor biopsy
  • A device for taking bile duct tumor biopsy
  • A device for taking bile duct tumor biopsy

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Embodiment Construction

[0013] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0014] Such as Figures 1 to 3 As shown, a biopsy device for bile duct tumors includes a catheter 1, one end of the catheter 1 is connected to a control handle, a side hole 2 is opened on the side wall of the port at the other end of the catheter 1, and an inner core is installed in the catheter 1 6. One end of the inner core 6 extends into the control handle, and the inner core 6 is controlled to rotate in the catheter 1 and ...

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Abstract

The invention relates to a biopsy device for bile duct tumors, comprising a catheter, one end of the catheter is connected to a control handle, a side hole is opened on the side wall of the port at the other end of the catheter, an inner core is installed in the catheter, and the inner core One end extends into the control handle, and the inner core is controlled to rotate in the catheter and slide axially through the control handle. The other end of the inner core is wound with a material extractor, which is a sheet made of elastic metal material. There is an outward straight or arc-shaped planer on the extractor, the direction of the raised part of the planer is consistent with the winding direction of the extractor, and the extractor is matched with the side hole and pulled out from the side hole through the control handle. Extend or retract. The advantage of the present invention is that the tumor tissue on the wall of the bile duct is cut through the sampler with a cutting edge, and the tissue sample is obtained directly.

Description

technical field [0001] The invention belongs to a device for collecting materials for bile duct tumor tissue operation, in particular to a device for obtaining materials for bile duct tumor biopsy. Background technique [0002] When endoscopic minimally invasive ERCP is used to treat cholangiocarcinoma, it is necessary to determine whether it is cholangiocarcinoma. The existing method is to use biliary tract cytobrush examination for cell immunohistochemistry, but the positive rate of this method is very low and cannot meet the clinical needs. At present, no biopsy device for cholangiocarcinoma that can be applied clinically has been found. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a biopsy device for cholangiocarcinoma, which cuts the tissue on the wall of the cholangiocarcinoma through a sampler with a cutting edge, directly obtains tissue samples, and can diagnose cholangiocarcinoma. [0004] The techni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B10/02
Inventor 高飞王冰吕彦
Owner 高飞
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