Non-piercing microwave ablation antenna and application thereof

Abstract

The invention relates to a non-piercing microwave ablation antenna, which comprises a radiator and a radiator cover, wherein the radiator is located at the front end of an antenna, the radiator coveris sleeved on the radiator, and the front end of the radiator cover is a blunt tip. Because the front end of the radiator cover applies the design of blunt tip, the special non-piercing shape enablesthe antenna to freely travel in the lung tissue but not penetrating the blood vessels and bronchi of the lung, and the tumor angiogenesis exists in the GGO cannot be damaged by the blunt head portionto cause bleeding, the operation failure rate because the lesions can not be identified due to the bleeding in the lung is reduced, meanwhile the possibility of diffusion of the tumor cells through the piercing passage and bleeding blood vessels is prevented. The front end of the blunt tip can press the GGO lesions without passing through GGO, and the lesions is enabled to be compacted and the volume is reduced obviously, the ablation space is reduced and the lung tissue is protected maximum. Because the non-piercing microwave ablation antenna is different from the traditional mode which passes the lesions to ablate normally, and the influence of the ablation passage in the lesions to the sample of pathological biopsy is prevented.

Description

technical field [0001] The invention relates to a microwave ablation antenna and its application, belonging to the technical field of microwave ablation. Background technique [0002] With the advancement of modern technology and oncology, breakthroughs have been made in microwave tumor ablation technology at home and abroad in the past ten years. With the wide application of this truly minimally invasive local treatment of tumors, thermal ablation has become the first-line first-line treatment in clinical treatment guidelines. Liver cancer, lung cancer, and thyroid adenoma are hot spots for microwave ablation. 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 em...

AI Technical Summary

Problems solved by technology

Both biopsy and ablation use puncture-type needles. The sharp needle tip may damage blood vessels and bronchi. Once the blood vessels are punctured, the outflow of blood will make it difficult for GGO to be clearly identified under the image, which increases the difficulty of the operation.

Moreover, the puncture of the biopsy needle will pierce the entire tissue of GGO, causing the natural barrier between normal tissue and tumor cells to be broken. At the same time, due to bleeding, cancer cells may also enter the blood system and reach other tissues of the body, resulting in spread.

Therefore, compared with thoracoscopic surgery, although this surgical method minimizes the damage to normal lung tissue and brings less pain to the patient, it is difficult to clearly identify the problem of GGO caused by pulmonary hemorrhage and cancer. proliferation risk

Images