Microwave-type tumor ablating needle with temperature control function

Abstract

The invention relates to a microwave-type tumor ablating needle with a temperature control function, and belongs to the technical field of medical apparatuses. The microwave-type tumor ablating needle with the temperature control function comprises an electrode head, a conical needle head and a needle rod, wherein the electrode head is arranged inside the conical needle head; thermal resistor temperature sensors are arranged at intervals on the outer wall of the needle rod; a first stainless steel tube is arranged inside the needle rod; a coaxial cable is arranged inside the first stainless steel tube; the front end of the coaxial cable is connected with the electrode head; a choke ring is arranged on the external diameter of the coaxial cable; the back end of the coaxial cable is connected with a radio frequency connector; a water inlet cavity is formed in the first stainless steel tube; a water outlet cavity is formed in a second stainless steel tube. Under ultrasound guidance, the microwave-type tumor ablating needle provided by the invention directly punctures into a gland tumor area percutaneously and can complete ablation, temperature measurement and positioning at a time, so that real minimal invasion is achieved, damage to a surrounding normal tissue is reduced, pains of a patient are relieved, and the rehabilitating cycle is shortened.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically, the invention relates to a tumor microwave ablation needle with temperature control function. Background technique [0002] With the development of tumor minimally invasive technology, microwave thermal ablation technology has gradually been recognized and widely used in the field of clinical medicine. Microwave ablation uses the thermal effect of microwaves to heat tumor tissue to denature and coagulate proteins to achieve the therapeutic purpose of eliminating tumors in situ. Under the guidance of B-ultrasound and CT images, direct percutaneous puncture to the tumor site realizes minimally invasive surgery in the true sense. At present, the microwave ablation products used clinically can basically achieve a spherical shape in terms of ablation morphology, but whether it can ensure the complete destruction of the tumor is undoubtedly a crucial parameter in the proc...

AI Technical Summary

Problems solved by technology

Both of the above two judgment methods have certain deficiencies. The bypass temperature measurement increases the difficulty of the doctor's secondary positioning. B-ultrasound or CT is sometimes judged by the vaporization image in the process of tumor ablation, and the operating doctor needs to have superb medical skills and certain experience.

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