Single needle water cooling type radio frequency ablation electrode

A radiofrequency ablation, water-cooled technology, applied in the field of biomedical engineering, can solve the problems of high price, special material selection, complex structure, etc., and achieve the effect of low price, common material selection, and large ablation range

Inactive Publication Date: 2004-12-15
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But it has complex structure, special selection of materials and high price

Method used

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  • Single needle water cooling type radio frequency ablation electrode
  • Single needle water cooling type radio frequency ablation electrode
  • Single needle water cooling type radio frequency ablation electrode

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Embodiment Construction

[0021] In order to better understand the technical solution of the present invention, a further detailed description will be made below in conjunction with the accompanying drawings.

[0022] The internal structure of the present invention is as figure 1 figure 2 As shown, it mainly includes a radiofrequency ablation electrode needle, a handle, a support frame 7 in the handle, a water storage frame 6, a water diversion steel pipe 5 in the electrode needle, a thermocouple 17, and water inlet and outlet hoses and cables 13. The handle front cover 3, the handle main body 1, and the handle back cover 2 are fixedly connected in sequence to form a complete handle. The supporting frame 7 in the handle main body 1 is tightly fitted and inserted into the water storage frame 6 , the two are fixedly connected and embedded in the fixing groove of the handle main body as a whole, and the cavity in the middle forms a cooling water return pool 16 .

[0023] The radiofrequency ablation ele...

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Abstract

The single needle water cooling type RF ablation electrode has support frame inside handle matching and inserting into the water storing frame, middle cavity to form cooling water return pool, electrode needle with insulating material coated and scaled front section, bare tip and back section inserted inside the handle and connected to RF wire, built-in water guiding steel pipe, and temperature metering thermocouple inserted into the electrode needle in the coaxial position. The water inlet hose is connected to the built-in water guide steel pipe, water outlet hose connected to the cooling water return pool, and the RF wire and the thermocouple constitute the connecting cable connected to the system unit of the RF ablation system for signal transmission. The cooling water circulates in the system. The present invention has novel structure, great and controllable ablation range and high safety and reliability.

Description

Technical field: [0001] The invention relates to a single-needle water-cooled radio-frequency ablation electrode, which is a single-needle radio-frequency ablation electrode that uses water cooling to increase and control the ablation range. It is applied to tumor treatment and belongs to the technical field of biomedical engineering. Background technique: [0002] The ablation electrode is one of the key components of the radiofrequency tumor ablation treatment system. It will directly enter the patient's body. Therefore, in addition to ensuring the best curative effect, it must also reduce its potential danger to a minimum. [0003] The existing radiofrequency ablation electrodes at home and abroad can be roughly divided into two types: "multi-warhead" type and cold cycle type. [0004] The "multi-warhead" type was first introduced by Radio Therapeutics Corp of the United States, and was introduced into my country in May 1999. The "multi-bullet" (multipolar needle) ablati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/14
Inventor 陈亚珠白景峰
Owner SHANGHAI JIAO TONG UNIV
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