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Portable internal irradiation particle device and its manufacturing mold and manufacturing method

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 stents can only be used as palliative treatment, so as to achieve the effect of improving efficiency and success rate, good treatment effect and fast speed

Active Publication Date: 2018-01-23
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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  • Portable internal irradiation particle device and its manufacturing mold and manufacturing method
  • Portable internal irradiation particle device and its manufacturing mold and manufacturing method
  • Portable internal irradiation particle device and its manufacturing mold and manufacturing method

Examples

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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 portable internal irradiation particle device, characterized by consisting of an external particle-carrying device (1) and an internal support expansion device (2). The main body of the external particle-carrying device (1) is a mesh woven from nickel-titanium alloy wires. The skeleton structure (3) has a particle filling capsule (4) with radioactive particles installed on the surface of the mesh skeleton structure (3). The particle filling capsule (4) is divided into two sections up and down, and the particle filling capsule (4) passes between the upper and lower sections. Nitinol wire connection. The portable internal irradiation particle device has a simple structure and is easy to operate. It adopts a structure of two devices and is inserted step by step. The device can be installed into a smaller inserter, making it possible to implant a portable internal irradiation particle device. The risk is low and the patient suffers little pain.

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 Patents(China)
IPC IPC(8): A61F2/90A61M36/12A61N5/10
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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