一种射频热凝电极套管针

By designing a needle sleeve and a protective isolation section, the heating range of the exposed end of the radiofrequency thermocoagulation electrode cannula is limited to 180 degrees, which solves the problem of inaccurate treatment in existing technologies and achieves precise treatment of the target nerve and improves safety.

CN224505563UActive Publication Date: 2026-07-17JIAXING NO 1 HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAXING NO 1 HOSPITAL
Filing Date
2025-01-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The 360-degree heating design of the exposed end of the existing radiofrequency thermocoagulation electrode cannula leads to inaccurate treatment, which can easily damage surrounding tissues, affecting treatment effectiveness and patient recovery.

Method used

A radiofrequency thermocoagulation electrode cannula needle is designed, which uses a needle cannula and a protective isolation part to limit the high-temperature contact area of ​​the exposed end to 180 degrees. Combined with insulating materials and a specific structure, it ensures that the radiofrequency energy is concentrated on the target nerve tissue.

Benefits of technology

It achieves precise control of the thermal coagulation range, reduces damage to surrounding tissues, improves surgical success rate and patient recovery quality, and reduces the risk of postoperative complications.

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Abstract

本实用新型公开了一种射频热凝电极套管针，包括针管、针管套，所述针管通过导线组件与射频发生装置连接，所述针管套套设在针管的外侧，所述针管的前部自针管套内伸出，所述针管套靠近针管的一端还设有向前延伸的防护隔绝部，所述防护隔绝部用于将裸露出来的前部针管部分包围隔绝在其内侧以使得针管的高温可接触区域缩小，单侧发热接触区域的设计使得射频能量能够集中作用于目标神经组织，精准的热凝范围控制能够确保治疗的针对性和有效性，提高手术的成功率和治疗效果,此外还设有相应的回声加强结构，在超声成像中能够产生更明显的回声信号，使得医生能够更精准的把握针管位置，提供更清晰的视觉反馈，提高手术效率与安全性。
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Claims

1. A radiofrequency thermocoagulation electrode cannula needle, comprising a needle tube and a needle tube sleeve, wherein the needle tube is connected to a radiofrequency generating device via a lead wire assembly, the needle tube sleeve is fitted over the outside of the needle tube, and the front portion of the needle tube extends out from inside the needle tube sleeve, characterized in that: The needle tube sleeve is also provided with a forward-extending protective isolation part at one end near the needle tube. The protective isolation part is used to surround and isolate the exposed front part of the needle tube inside, so as to reduce the area of ​​the needle tube that can be exposed to high temperature.

2. A radiofrequency thermocoagulation electrode cannula according to claim 1, characterized in that: The cross-section of the protective isolation part is semi-circular. After the exposed front end of the needle tube is covered by the protective isolation part, it only generates heat in a semi-circular area on one side. The high-temperature contact area is limited to a semi-circle in the axial direction of the needle tube, and the central angle of the semi-circular area is 180 degrees.

3. A radiofrequency thermocoagulation electrode cannula according to claim 2, characterized in that: The needle sheath is made of insulating and heat-resistant material.

4. The radiofrequency thermocoagulation electrode cannula needle according to claim 1, characterized in that: The outer circumferential surface of the needle tube is provided with several double-headed cross-threaded grooves, and the several double-headed cross-threaded grooves are distributed at intervals along the axial direction.

5. The radiofrequency thermocoagulation electrode cannula needle according to claim 1, characterized in that: The outer circumferential surface of the needle tube is provided with several diamond-shaped indentations.