Microwave ablation needle

Abstract

The invention provides a microwave ablation needle which comprises an ablation needle head, an ablation needle tube, a handle and a fixing frame. The ablation needle head is of a hollow structure, a guide wire is arranged in the ablation needle head, a guide tube externally sleeves the ablation needle head, the ablation needle head can axially move along with the guide tube, the handle is connected with a pushing device for pushing the ablation needle head to move along the axial direction of the guide tube, and the pushing device is arranged at one end of the handle far away from the ablation needle head. According to the microwave ablation needle, the microwave ablation needle is arranged in the guide tube and pushed to perform puncture by the pushing device, puncture accuracy and stability are improved, bending or breaking of the microwave ablation needle in the puncture process is effectively avoided, injury to human tissues is decreased, puncture time is shortened, and surgical risks are reduced.

Description

technical field [0001] The invention relates to the technical field of medical machinery, in particular to a microwave ablation needle. Background technique [0002] Microwave ablation is a highly efficient, rapid, uniform heating, thorough thermal coagulation, easy to use and safe treatment method for tumor tissue. It has been widely used in clinic for many years. With the deepening of clinical practice, clinical requirements for microwave ablation needles (microwave radiation antenna) are also getting higher and higher. Usually, in order to prevent the needle of the microwave ablation needle from being bent or broken during puncturing, the catheter is first punctured, and then the ablation needle is punctured along the direction of the catheter. The general operation process of the microwave ablation needle is as follows: first, plan the puncture path through CT scan; through realizing the planned path, first blindly puncture the catheter to the predetermined tumor site, ...

AI Technical Summary

Problems solved by technology

However, this puncture method usually requires skilled doctors to perform puncture based on experience, and requires repeated puncture positioning, which is likely to cause bleeding, take a long time, and easily damage surrounding tissues or organs, etc.

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