Ablation needle intercooling cycle device

Abstract

The invention relates to an ablation needle intercooling cycle device. The ablation needle intercooling cycle device is characterized by comprising a capillary tube locating hole (6), a needle rod locating hole (14), a water outlet hole (18), a cable fixing hole (25), a water outlet pipe fixing hole (20), a water inlet pipe fixing hole (9), a water inlet pipe (10) and a water outlet pipe (21); theneedle rod locating hole (14) and the capillary tube locating hole (6) are through front and back and formed in the same center line A, and a needle rod (12) is arranged in the needle rod locating hole (14). The water inlet pipe is communicated with a capillary tube to convey cycle water into the rear portion of a needle head, then cooling water brings away heat of the needle head, flows back from the gap between the capillary tube and the needle rod, flows out of the water outlet hole after backflow, and a water cycle system is formed by repeating the process. A temperature measuring line iswelded to the point end of the capillary tube, passes through an inner hole of the capillary tube and is led out from a glue curing region of the water inlet pipe, not only temperature at the front end of the needle rod is sensed, but also leakproofness of the water inlet pipe system is ensured, the product structure is more scientific and simplified, and the ablation needle intercooling cycle quality is ensured better.

Description

technical field [0001] The invention relates to the field of minimally invasive medical technology, in particular to an internal cooling circulation device for an ablation needle. Background technique [0002] The ablation needle is not a needle, it is a very thin radio frequency energy output electrode. The specific method is: under the guidance of B-ultrasound or CT, the ablation needle is directly punctured into the tumor site, the polar molecules in the tissue move at high speed under the action of radio frequency current, rub each other to generate heat, and heat up rapidly in the tumor. When the temperature reaches about 60 degrees, the protein of cancer cells denatures and coagulates, leading to irreversible necrosis. At the same time, it has very little impact on other tissues, improves the immunity of the patient's body, and inhibits the spread of tumor cells. [0003] Ablation needles are widely used in liver cancer, lung cancer, uterine fibroids, bone cancer, ki...

AI Technical Summary

Problems solved by technology

[0004] The temperature control effect of the existing ablation needle at the working site is not ideal, resulting in rapid temperature rise of the ablation needle, which is not easy to control, adhesion of the needle shaft and needle tip, and damage to surrounding organs. The reactions include slight burning pain during the operation, postoperative Low fever etc.

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