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
CN1554314AInactive Publication Date: 2004-12-15SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2004-12-15
Estimated Expiration
Not applicable · inactive patent

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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.
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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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