Device capable of carrying internal irradiation particles and manufacturing die and method of die

A technology of manufacturing molds and radiating particles, which is applied in the field of medical stents, can solve the problems that the long-term curative effect of cholangiocarcinoma is not optimistic and the stent can only be used as palliative treatment, so as to achieve the effects of improving efficiency and success rate, good treatment effect and reliable positioning

Active Publication Date: 2015-11-11
MICRO TECH (NANJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Stent therapy is currently a good method for the treatment of cholangiocarcinoma strictures. However, with the application of new technologies, the application of current biliary stents has some limitations. For example, the existing stents can only be used as palliative treatment. The curative effect has not been optimistic

Method used

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  • Device capable of carrying internal irradiation particles and manufacturing die and method of die
  • Device capable of carrying internal irradiation particles and manufacturing die and method of die
  • Device capable of carrying internal irradiation particles and manufacturing die and method of die

Examples

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Effect test

Embodiment 2

[0044] A manufacturing mold for externally carrying a particle device includes a cylindrical structure of the mold, and four circular holes are distributed in several rows on the circumference of the cylindrical structure of the mold.

Embodiment 3

[0046] A method for manufacturing an external particle device, comprising the steps of:

[0047] Step 1, inserting a fixed needle at each circular hole 9 of the manufacturing mold of the external particle device as claimed in claim 4, for supporting the nickel-titanium alloy wire;

[0048] Step 2. Fix the nickel-titanium alloy wire at one end, and select any fixed needle in the second row as the starting knitting point;

[0049]Step 3. When weaving, the nickel-titanium alloy wire is woven clockwise or counterclockwise, and one device can only weave in one direction all the time;

[0050] Step 4. In the same weaving direction as step 3, weave from top to bottom; when weaving, when encountering the position where nickel-titanium alloy wire has been woven, the newly knitted nickel-titanium alloy wire and the original nickel-titanium alloy wire are interlaced; weave from the top to the bottom, and then weave again from bottom to top;

[0051] Step 5. Repeat the weaving method fo...

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Abstract

A device capable of carrying internal irradiation particles is characterized in that the device is composed of an external particle carrying device body (1) and an inner supporting and expanding device (2), a body of the external particle carrying device body (1) is a mesh frame structure (3) formed by weaving nickel-titanium alloy wires, particle bagging bags (4) with the irradiation particles are installed on the surface of the mesh frame structure (3) and are each divided into two sections vertically, and the upper sections and the lower sections of the particle bagging bags (4) are connected through nickel-titanium alloy wires. The device capable of carrying the internal irradiation particles is simple in structure and easy to operate, the composition structure of two devices is adopted, imbedding is carried out step by step, the device can be put into a smaller embedding device, the implanting of the device capable of carrying the internal irradiation particles becomes possible, the risk is low, and the pain of a patient is little.

Description

technical field [0001] The present invention relates to the field of medical stents, in particular to a portable internal irradiation particle device and its manufacturing mold and manufacturing method. The present invention relates to a device that can dilate biliary tract strictures and perform radiotherapy on biliary tract tumors. Background technique [0002] As we all know, the traditional treatment of cholangiocarcinoma is surgery, but only 20% of the tumor can be surgically removed. For those who cannot be removed, biliary anastomosis or biliary T-tube external drainage can be selected for palliative treatment. Although this treatment can be effective Relieve obstruction and improve clinical symptoms, but there are still some problems, such as difficult surgery, many early complications, postoperative biliary tract infection, etc. Therefore, palliative surgery has poor curative effect, large trauma, and low quality of life. Cholangiocarcinoma is always a surgical optio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90A61M36/12
Inventor 郭金和滕皋军潘长网李玉茜徐宏剑冷德嵘刘春俊
Owner MICRO TECH (NANJING) CO LTD
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