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Antenna component used for microwave ablation and microwave ablation needle adopting same

An antenna assembly and microwave ablation technology, which is applied to microwave surgical instruments, parts of surgical instruments, trocars, etc., can solve problems such as medical accidents, ablation needle bursts, easy to burn out ablation needles, etc., to avoid burning out Effect

Active Publication Date: 2016-05-25
SINOSURGICAL HEALTHCARE TECH ZHEJIANG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ablation antenna using the choke ring (slot) technology can effectively suppress the reverse escape of microwaves and obtain a round ablation area. Dielectric constant medium, so that the circulating water cannot reach the head of the ablation needle
If the temperature of the needle head is too high, it will easily burn out the ablation needle, and may even cause the ablation needle to burst, resulting in medical accidents

Method used

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  • Antenna component used for microwave ablation and microwave ablation needle adopting same
  • Antenna component used for microwave ablation and microwave ablation needle adopting same
  • Antenna component used for microwave ablation and microwave ablation needle adopting same

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0026] The invention discloses an antenna assembly for microwave ablation. The antenna assembly includes a radiator, a cooling water channel and a coaxial line, wherein the radiator is used to emit microwaves used for ablation; the cooling water channel is used for The radiator is cooled; the coaxial line is used to transmit the microwave for ablation generated by the microwave generator to the radiator; a soft magnetic oxide is formed on the outermost layer of the coaxial line Body film chokes.

[0027] The soft ferrite thin film can be made of high-permeability soft ferrite material, wherein the relative permeability relative to vacuum is preferably greater than 50, and such a material is preferably nickel-zinc-cobalt s...

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Abstract

The invention relates to an antenna component used for microwave ablation. The antenna component used for the microwave ablation comprises a cooling water channel, a coaxial line and a radiator, wherein a circle of soft magnetic ferrite film is plated on the outermost layer of the coaxial line. The invention also relates to a microwave ablation needle adopting the antenna component used for the microwave ablation. The antenna component used for the microwave ablation has the advantages that the soft magnetic ferrite film can effectively inhibit microwave transmitted backward along the outer wall of the coaxial line, a radiation zone does not need to be filled with a stable medium, circulating water is allowed to enter the radiation zone, temperature at the head of the ablation needle can be effectively controlled, and the ablation needle is prevented from being burned out due to overhigh temperature and a medical accident is avoided.

Description

technical field [0001] The invention relates to the technical field of microwave treatment equipment, and more particularly relates to an antenna assembly for microwave ablation and a microwave ablation needle using the same. Background technique [0002] In recent years, microwave ablation has gradually become one of the important therapeutic methods for the treatment of liver cancer. Microwave ablation uses the thermal effect of microwaves in polar molecules, such as water, to make the lesion area reach a high temperature instantly, coagulate the tissue, dehydrate and necrosis, so as to achieve the purpose of treatment. [0003] From the perspective of microwave antenna design, there are two kinds of mainstream ablation needles on the market: one is the ablation antenna without choke technology, such as the Chinese patent application publication number CN103142307A; the other is the use of choke ring ( slot) ablation antenna, for example, the Chinese patent application pu...

Claims

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Application Information

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IPC IPC(8): A61B18/18
CPCA61B18/1815A61B2018/00011A61B2018/00589A61B2018/00529A61B2018/1823A61B2018/183A61B2018/1869A61B2018/00023A61B2018/00577A61B2018/1853
Inventor 詹德志严勇李辉
Owner SINOSURGICAL HEALTHCARE TECH ZHEJIANG CO LTD
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