Radio frequency ablation needle
The utility model belongs to the technical field of medical equipment, and discloses a radiofrequency ablation needle which comprises a needle head and a needle tube, one end of the needle head is a puncture portion used for puncturing skin, the other end of the needle head is fixedly connected with...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model belongs to the technical field of medical equipment, and discloses a radiofrequency ablation needle which comprises a needle head and a needle tube, one end of the needle head is a puncture portion used for puncturing skin, the other end of the needle head is fixedly connected with the needle tube, a drainage tube is arranged in the needle tube, a gap is formed between the needle tube and the drainage tube, and the drainage tube is used for conveying cooling water. Holes are arranged at the joint of the needle and the needle tube in the needle and close to the tip of the needle, one end of the drainage tube is connected with the holes, the other end of the drainage tube is connected with the cooling water circulating tube, and openings are arranged at the connecting ends of the drainage tube and the holes. According to the utility model, the end part of the drainage tube is fixed, so that water flow is more stable and concentrated; the distance between the drainage tube and the needle tip is |
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