Fiber Bragg Grating Temperature Sensor and Its Probe

Abstract

The invention relates to a fiber grating temperature sensor which comprises a probe and a demodulating system connected with the probe, wherein the probe comprises a needle head and a handle which are connected together. The fiber grating temperature sensor is characterized in that the needle head is an austenitic stainless steel round bar with a needle point, the center of the bottom surface at one end of the austenitic stainless steel round bar is provided with a blind hole, and the blind hole extends close to the other end of the austenitic stainless steel round bar; and a fiber bragg grating is arranged in the blind hole. The invention is mainly used for manufacturing fiber grating temperature sensors for microwave thermotherapy of bone tumors.

Description

technical field

[0001] The invention relates to an optical fiber grating temperature sensor and a probe thereof, in particular to an optical fiber Bragg grating temperature sensor, which is especially suitable for clinical application of microwave hyperthermia for bone tumors. Background technique

[0002] Tumor is a kind of disease that seriously threatens human life and health. One of its characteristics is that it is very diffuse, and because there is no clear boundary between tumor cells and surrounding normal human tissue cells, it is difficult to completely remove tumor cells with general surgical treatment methods, and it is easy to relapse after surgery. Although radiotherapy and chemotherapy can kill tumor cells, they also damage a large number of normal tissue cells, which further deteriorates the patient's physical condition and makes it difficult to receive follow-up treatment. At present, countries around the world have successively developed the use of microwa...

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