Adjustable radiofrequency ablation needle special for thyroid gland and mammary gland

Abstract

The invention relates to an adjustable radiofrequency ablation needle special for thyroid gland and mammary gland; the needlecomprises a handle, an outer rod is fixedly installed at the top of the handle, a fixing plate is fixedly installed in an inner cavity of the outer rod, a sliding plate located at the bottom of the fixing plate is slidably connected to the inner cavity of the outer rod, and a sleeve is fixedly connected between the fixing plate and the sliding plate. And a needle body of which the top penetrates to the outside of the outer rod is movably mounted in the fixed plate. According to the adjustable radiofrequency ablation needle special for the thyroid gland and the mammary gland, a pushing structure is pushed to drive the sliding plate and the needle body on the sliding plate to move, so that the length of the needle body is adjusted, the locking nut is used for limiting the position of the pushed structure after the pushing structure moves, and then a fastening structure is rotated to lock and fix the needle body; the position fixation after the length of the needle body is adjusted is further increased, the use stability of the radiofrequency ablation needle is further improved, the overall structure is simple, the purpose that the radiofrequency ablation needle is adjustable is achieved, and effective adjustment can be conducted according to the depth position of a tumor part.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an adjustable radio frequency ablation needle for thyroid gland and breast gland. Background technique [0002] Radiofrequency ablation is to insert the electrode catheter into the heart through the femoral artery and vein, internal jugular vein and subclavian vein, and use electrophysiological mapping technology to find abnormal electrical conduction channels or ectopic pulse points in the heart. The resistive electrothermal effect is produced in the myocardial tissue, which makes the myocardial cells dry and necrotic, so as to achieve the purpose of treating tachyarrhythmia. [0003] Generally, local anesthesia is used, CT scanning is used for positioning, and the tumor is punctured (percutaneously) according to the measured distance and angle. After the electrode needle is inserted into the center of the tumor, the electrode is unfolded, and radiofrequency ablation is ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an adjustable thyroid and breast radiofrequency ablation needle, which has the advantages of being adjustable, and solves the problem that the radiofrequency ablation needle cannot adjust its own length according to tumors with different depths

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