Ablation antenna with external pipeline

Abstract

The invention discloses an ablation antenna with an external pipeline. The ablation antenna comprises an ablation needle P1, an insulator medium P2, an ablation needle pipe P6, a handle P10, an outer sheath 1 and a fixing seat 3, wherein the outer sheath 1 consists of a side hole 11, a sheath pipe 12 and a first joint 13; the side hole 11 is a through hole in the front end of the sheath pipe 12; and the tail end of the sheath pipe 12 is fixed on the handle P10 by the fixing seat 3. The ablation needle pipe P6 penetrates through the sheath pipe 12 and an inner cavity of the first joint 13, and a cavity channel 6 is formed by a gap between the inner wall of the sheath pipe 12 and the outer wall of the ablation needle pipe P6 and is communicated with the first joint 13. The tail end of the sheath pipe 12 can be provided with a second joint 14, and the cavity channel 6 is communicated with the second joint 14. Both the first joint 13 and the second joint 14 can be blocked by using blocking caps. The ablation antenna disclosed by the invention has the advantages that due to the arrangement of the two joints, the work of medicine injection and tissue-fluid extraction can be finished after once needling.

Description

technical field [0001] The present invention relates to a multifunctional ablation antenna in the medical field, in particular to an outer sheath used in conjunction with an ablation needle. After the outer sheath is combined with the ablation antenna, the outside of the needle rod of the ablation antenna has a hollow cavity for realizing tumor ablation Injection of anesthetics, chemotherapy drugs, chemical ablation drugs, contrast agents, extraction of living tissue cells, pneumothorax exhaust and other functions during the treatment process. Background technique [0002] Image-guided thermal ablation therapy has become a minimally invasive method for treating tumors. One of the current tumor thermal ablation technologies is microwave ablation. Under the guidance of images, this technology percutaneously punctures the ablation antenna to the tumor lesion, and transmits the energy to the head of the ablation antenna through the transmission cable. The tumor cells are coagula...

AI Technical Summary

Problems solved by technology

[0012] However, the existing microwave ablation antenna still has the following disadvantages: the current ablation antenna has a single function and can only achieve the effect on tumor coagulation necrosis or local hemostasis

This not only increases the complexity of the operation, but also increases the trauma and clinical risk of the operation.

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