Multi-jaw conformal ablation needle with nested structure

Abstract

The invention discloses a multi-jaw conformal ablation needle with a nested structure and belongs to the technical field of medical care equipment. The multi-jaw conformal ablation needle with the nested structure comprises flexible ablation needles, electrode outer sleeves, electrode outer sleeve slide blocks and electrode slide blocks, wherein the electrode outer sleeves are connected with the electrode outer sleeve slide blocks; the electrode outer sleeve slide blocks are used for driving the electrode outer sleeves to perform axial motion; the flexible ablation electrodes penetrate throughthe electrode outer sleeves and are connected with the electrode slide blocks; the electrode slide blocks are used for driving the flexible ablation electrodes to perform axial motion; and the position and posture of the ends of the flexible ablation electrodes can be adjusted through axial motion of the flexible ablation electrodes and the electrode outer sleeves. The multi-jaw conformal ablation needle with the nested structure can drive the electrode outer sleeves and the flexible ablation electrodes to perform axial motion through the electrode outer sleeve slide blocks and the electrodeslide blocks and then adjust the position and posture of the ends of the ablation electrodes in a tissue, so that the ablation electrodes of the multi-jaw conformal ablation needle can adapt to various forms when the multi-jaw conformal ablation needle works.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and more specifically relates to a multi-claw conformal ablation needle with a nested structure. Background technique [0002] In 2015, approximately 90.5 million people worldwide were diagnosed with cancer. There are about 14.1 million new cancer cases and about 8.8 million deaths every year. It is an important cause of human death. Radiofrequency ablation, as a minimally invasive treatment with less damage and faster recovery, is an important treatment for many cancers, such as lung cancer, liver cancer, prostate cancer, kidney cancer, breast cancer and so on. [0003] The principle of radiofrequency ablation is to form a loop between the ablation electrode on the radiofrequency ablation needle and the human epidermis, and use the high-frequency radiofrequency current signal to drive the ions in the human tissue to reciprocate and vibrate, and various ions and other particles will rub ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the above defects or improvement needs of the prior art, the present invention provides a multi-claw conformal ablation needle with a nested structure, thereby solving the technical problem existing in the prior art that active deformation cannot be produced according to needs

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