A microwave ablation antenna suitable for interventional therapy of lung cancer

Abstract

The invention relates to a microwave ablation antenna for interventional treatment of lung cancer. The microwave ablation antenna for interventional treatment of lung cancer comprises a zirconia needling tip, a coaxial cable, a water retaining shaft, a water diversion pipe and a needle rod. The front portion of an outer conductor of the coaxial cable is cut off two spaced sections and exposed with a dielectric layer to form two emitting windows, the outer conductor and an inner conductor of the front end of the coaxial cable are in short circuit through soldering, and epoxy resin glue for fixing is filled between the soldering and a central blind hole of the zirconia needling tip as well as between the dielectric layer at the emitting windows and the central blind hole of the zirconia needling tip. The microwave ablation antenna for interventional treatment of lung cancer is provided with a double-window structure at the head portion to be suitable for the dielectric coefficient of the lung tissue and exactly matched with the lung tissue, has the ablation diameter of more than 5 cm and is an effective tool for ablation of lung cancer, especially large lung cancer.

Description

technical field [0001] The invention relates to a microwave ablation antenna suitable for interventional treatment of lung cancer, and belongs to the technical field of microwave ablation needles. Background technique [0002] With the advancement of modern technology and oncology, domestic microwave tumor ablation technology has made breakthroughs in the past ten years. Microwave tumor ablation is to use microwave energy to act on tissues to produce thermal effects. Within a few minutes to tens of minutes, the central temperature of the thermal field can reach above 100°C. Purpose of ablation therapy. Microwave tumor ablation is to insert a microwave ablation needle into the lesion of human tissue, and the front end continuously emits microwave energy to perform the operation. Because of its high efficiency, small wound, and controllable depth and range of effect on the tissue, it is suitable for Ablation of solid tumors throughout the body. [0003] The existing ablatio...

AI Technical Summary

Problems solved by technology

However, because the boundary electric coefficient of lung cancer tissue is different from that of the liver and other organs, the existing ablation antenna is not suitable for the treatment of lung cancer

Moreover, the tumor volume of lung cancer is large, so the antenna is required to have a larger ablation diameter, which is also impossible for traditional ablation antennas

At present, there is no ablation antenna suitable for lung cancer surgery on the market.

Images