Temperature control microwave melt needle

Abstract

The invention discloses a temperature control microwave ablating needle used for a microwave thermal ablating remedy of oncosis and pathologic change organization, the operation of which is convenient and safe. The invention comprises an ablating needle head, an ablating needle tube and a handle, wherein, a rhenium insulator is arranged between the ablating needle head and one end of the ablating needle tube, the other end is connected with the head of the handle, an end seal is arranged at the other end, a fixed mount and a jack used to be externally connected are arranged at the tail part of the handle, a coaxial cable connecting joint and a connecting terminal are arranged on the fixed mount, a microwave coaxial cable and a stainless steel capillary tube are arranged in the ablating needle tube, the microwave coaxial cable passes through the end seal, and the microwave coaxial cable is also connected with the coaxial cable connecting joint, a temperature sensor is arranged on the end seal, the connecting terminal used to be connected with the temperature sensor is arranged on the fixed mount, and the water outlet is communicated with the ablating needle tube. The usage is convenient, safe and reliable, the operating process is simplified, and the possibility of the operating time and the infection during the operation process is reduced.

Description

technical field [0001] The invention relates to a disposable treatment device, in particular to a temperature-controlled microwave ablation needle for microwave thermal ablation treatment of tumors and diseased tissues. Background technique [0002] With the development of medical imaging technology, under the guidance of images, microwave ablation of tumors has become a new treatment method for tumor treatment. It is guided by B-ultrasound or CT images, inserting microwave treatment needles into human tumor tissues. The tumor was treated with thermal ablation. During the above-mentioned treatment process, due to the energy loss of the microwave coaxial cable, the heat generated on the needle shaft of the microwave treatment needle scalds the tissues around the needle track. The water circulation reduces the temperature of the needle bar. But the connectors of the water inlet and outlet pipes of microwave ablation needle with cold circulation used at present are all instal...

AI Technical Summary

Problems solved by technology

The microwave input connector of the microwave ablation needle is installed at the back end of the treatment handle, so that before each treatment, the doctor needs to connect the water inlet and outlet pipes to the external water pipes one by one, and connect the treatment line to the back end of the treatment handle. It is directly connected to the microwave cable and the joint is exposed. Once the joint is not well connected, the microwave energy loss at the joint will increase

The heat generated can easily burn the hands of the operating doctor

Although there is a cooling capillary inside the needle tube to cool down the temperature, the temperature of the rod cannot be measured. Once the capillary is blocked, the temperature of the rod rises, which cannot be detected intuitively and in time, and may still burn the tissues around the needle tract.

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