Conformal ablation needle

Abstract

The invention relates to the field of medical instruments, and in particular relates to a conformal ablation needle. The prior ablation needle devices have the problems that a tumor cannot be wrappedin a conformal mode, the ablation effect is affected, electrode needles cannot be accurately guided to accurately reach the tumor boundary, and a plurality of electrode needles cannot be distinguished. The invention provides the conformal ablation needle. The conformal ablation needle comprises an interventional catheter, imaging equipment for guiding and positioning, a hollow ablation needle arranged at the end part of the interventional catheter and provided with a sharp end, and an umbrella-shaped electrode needle accommodated in the ablation needle. The ablation needle is arranged at the end part of the interventional catheter and can movably extend out, each electrode needle forming the umbrella-shaped electrode needle is a flexible electrode needle, and the imaging equipment comprises a ultrasonic probe arranged at the insertion end part of the interventional catheter, and an optical fiber lens assembly arranged at the front end of the ablation needle. According to the present invention, irregular tumors can be fully wrapped in a conformal mode, the electrode needles are guided to accurately reach the tumor boundary position, and the position of each electrode needle is distinguished, so that ablation treatment can be conducted on tumor tissue in a targeted mode in the follow-up process.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a conformal ablation needle. Background technique [0002] In recent years, electrical pulse athermal ablation has shown a wide range of clinical application value in the treatment of tumors. Existing non-thermoelectric pulse ablation devices mainly expose diseased tissue through percutaneous puncture or surgical laparotomy, and perform invasive electric pulse ablation treatment on patients. Some patients cannot withstand invasive surgery due to physical reasons, and percutaneous puncture is under control. It is difficult to accurately reach the lesion area. With the development of imaging technology, the use of ultrasound-guided minimally invasive tumor ablation has been widely used. For some tumors with complex anatomical structures, such as pancreatic tumors, the tumor is deep and often surrounds important blood vessels such as the superior mesenteric artery, vein, and celiac a...

AI Technical Summary

Problems solved by technology

[0003] The present invention overcomes the problems that the existing ablation needle device cannot affect the ablation effect of tumor "conformal wrapping", it is difficult to accurately guide the electrode needle to accurately reach the tumor boundary, and multiple electrode needles cannot be distinguished. The present invention provides a conformal ablation needle. The above-mentioned conformal ablation needle can fully conform to the irregular tumor, and effectively guide the electrode needle to reach the tumor boundary position accurately. When multiple electrode needles are inserted, the position of each electrode can be distinguished, so as to select the nearest adjacent tumor Tissue electrode needles for electroshock ablation

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