Radiofrequency ablation needle electrode and preparation method thereof

A technology of radiofrequency ablation and needle electrode, applied in the field of medical devices, can solve problems such as poor comprehensive performance and nearby tissue damage, and achieve the effects of low cost, simple operation and large ablation range

Pending Publication Date: 2020-03-31
日照天一生物医疗科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The existing radiofrequency ablation electrode needles have poor overall performance and are prone to damage nearby tissues during use

Method used

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  • Radiofrequency ablation needle electrode and preparation method thereof

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] like figure 1 As shown, the radiofrequency ablation needle electrode preparation method provided by the embodiment of the present invention specifically includes:

[0022] S101, the radiofrequency ablation electrode needle is wrapped in Inconel 625 alloy, and the Inconel 625 alloy is shaped on the electrode to form an insulating layer at 260-300 degrees Celsius.

[0023] S102, peel off the insulating layer formed by the Inconel 625 alloy.

[0024] S103, cleaning and grinding the radiofrequency ablation electrode needle with metallographic sandpaper, and reacting with ultrasonic stirring at room temperature for 4 ho...

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Abstract

The invention belongs to the technical field of medical devices, and discloses a radiofrequency ablation needle electrode and a preparation method thereof. The preparation method of the radiofrequencyablation needle electrode specifically includes the following steps: wrapping a radiofrequency ablation electrode needle in an Inconel 625 alloy, and shaping the Inconel 625 alloy on an electrode at260-300 DEG C to form an insulating layer; peeling off the insulating layer formed by the Inconel 625 alloy; performing cleaning, polishing the radiofrequency ablation electrode needle by using abrasive paper for metallograph, performing a reaction under ultrasonic stirring at room temperature in the presence of initiator ammonium persulfate for 4 h, and performing immersion in a 0.1-2 mol/L hydrochloric acid solution for 1-48 h; after the immersion is completed, taking out an electrode needle, and performing curing to obtain the radiofrequency ablation needle electrode. The needle electrode prepared by the preparation method provided by the invention has high comprehensive performance, does not have any impact on surrounding tissue, and has a large ablation range.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a radiofrequency ablation needle electrode and a preparation method thereof. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] Radiofrequency ablation (radiofrequency ablation, RFA) is a kind of physical therapy that uses radiofrequency current to excite high-speed oscillations of ions in tissues to collide and rub against each other to generate high heat to dehydrate tumor tissue cells and tissues to form local coagulation necrosis to treat tumors. [0004] Because of the advantages of minimally invasive, economical, and safe, radiofrequency ablation technology is playing an increasingly important role in the treatment of various tumors such as liver, lung, kidney, prostate, pancreas, and uterine fibroids, as well as arrhythmia such as atrial fibrillation. role. The radiofrequency elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/14
CPCA61B18/14A61B2018/1425A61B2018/00577
Inventor 孔新亮王敬李家祯李艳霞李绍霞刘玉芳
Owner 日照天一生物医疗科技有限公司
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