Multipole electroporation ablation needle and electroporation ablation equipment adopting multipole electroporation ablation needle

Abstract

The invention discloses a multipole electroporation ablation needle and electroporation ablation equipment adopting the multipole electroporation ablation needle. The multipole electroporation ablation needle comprises a needle rod, wherein the needle rod is provided with at least two metal electrodes; every two metal electrodes can be set into mutual electric insulation, and each metal electrode is provided with an electrode connecting conductor of which one end is connected with high-voltage output equipment and can be independently set into a positive electrode or a negative electrode at will; and in addition, the multipole electroporation ablation needle can carry out high-voltage discharging electroporation ablation between any two metal electrodes. The electroporation ablation needle can reduce insertion injuries, a focus on any position of the needle rod can be subjected to ablation under a situation that the depth of the electrode needle is not moved, surgical time is shortened, and the pain of a patient is lightened.

Description

technical field [0001] The invention belongs to the technical field of electroporation ablation medical equipment, and in particular relates to a multipolar electroporation ablation electrode needle and an electroporation ablation device using the same. Background technique [0002] Radiofrequency, microwave, and cryoablation are often difficult to treat when dealing with lesions that need to preserve important structures such as large blood vessels, important nerve tissues, bronchi, bile ducts, gastrointestinal wall, and ureter, and thermal ablation or cold ablation will Denaturation of proteins in important tissues leads to necrosis of important tissue cells. Electroporation ablation is a new tumor ablation technology, which uses high-voltage short-pulse discharge to cause nanoscale perforation of the cell membrane, resulting in cell apoptosis, so it is considered a "molecular ablation". From the experience of medical clinical feedback, it is a non-thermogenic ablation te...

AI Technical Summary

Problems solved by technology

However, in clinical practice, some tumors are small, some tumors are located near extremely complex organs such as large blood vessels and gastrointestinal walls, and some tumors are surrounded by intricate nerve tissues, so there is not enough space to place multiple electrode needles. It cannot effectively protect benign tissues and vital organs from misablation

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