Electroporation water-cooled internal circulation bipolar ablation needle and lesion ablation device

Abstract

This application discloses an electroporation water-cooled internal circulation bipolar ablation needle, which includes a front electrode tube, a front insulating tube, a rear electrode tube and an outer insulating tube; the front insulating tube is sleeved on the front electrode tube, and the front electrode tube The first end extends out of the front insulating tube and forms the needle head, the second end of the front electrode tube is connected with the first cable; the rear electrode tube is sleeved on the front insulating tube, the outer insulating tube is sleeved on the rear electrode tube, and the rear electrode tube The first end of the first end extends out of the outer insulating tube, and has a discharge distance from the part of the front electrode tube extending out of the front insulating tube; the second end of the rear electrode tube is connected with a second cable. This application achieves the technical effect of reducing the number of needles for electroporation ablation needles and simplifying the operation of needles, and solves the problem of using multiple ablation needles in the related art when electroporation ablation is used in the lesion position or narrow space of dense blood vessels. Internally, there are often difficulties in needle placement, and there is also the problem of low cooling efficiency for electroporation ablation needles.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular, to an electroporation water-cooled internal circulation bipolar ablation needle and a lesion ablation device. Background technique [0002] Tumor ablation therapy generally refers to local interventional therapy techniques that directly destroy tumors by various physical methods. Treatment methods include radiofrequency, microwave, freezing, high-frequency electrocautery, laser, high-energy focused ultrasound, drugs, etc. The corresponding treatment equipment is collectively referred to as a tumor / lesion ablation system. This equipment has an ablation needle that can penetrate into the human body. When performing treatment, the ablation needle needs to be accurately inserted into the human body and reach the tumor or lesion, and then the head end passes through the above-mentioned treatment. way to achieve ablation. [0003] As a method of tumor ablation treatme...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of this application is to provide an electroporation water-cooled internal circulation bipolar ablation needle and lesion ablation device to solve the problem of dense blood vessel lesion due to the need to arrange multiple ablation needles when electroporation ablation is used in the related art. Or in a narrow space, it is often difficult to arrange needles, and there is also the problem of low cooling efficiency for electroporation ablation needles

Images