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Microwave hyperthermia MRI EMI fiber optic temperature sensor

Microwave temperature measurement, thermal therapy temperature measurement, tumor medical fiber optic temperature sensor, anti electromagnetic interference fiber optic temperature sensor. FJINNO provides fiber optic temperature measurement systems with high temperature measurement accuracy.

In the field of medicine, temperature is a very important physiological parameter. In tumor hyperthermia, real-time monitoring of human body temperature and ablation site temperature is required to ensure accurate and uniform heating of tumor tissue, so that it can reach the critical death temperature and maintain normal tissue without thermal damage. The measurement requires sufficient accuracy, generally reaching ± 0.1-0.2 ℃. In addition, temperature sensors used in tumor hyperthermia not only measure tissue temperature in real-time, but also eliminate the problem of traditional thermometers being affected by electromagnetic radiation interference. Heat therapy is an emerging technology in the field of tumor treatment, which uses physical methods to heat the tumor area to an effective therapeutic temperature and maintain it for a certain period of time, achieving the therapeutic goal of killing tumor cells while minimizing damage to normal tissues.

Thermal therapy equipment mainly includes radio frequency capacitive thermal therapy machines, ultrasonic thermal therapy machines, and microwave thermal therapy machines. The electric field distribution of the radio frequency capacitive hyperthermia machine is not easy to control uniformly, and deep heating is difficult. When used, fat is prone to overheating and pain, and it is only suitable for areas with thin fat (thickness ≤ 1.5cm); The ultrasonic hyperthermia machine cannot penetrate the gas containing cavity. Microwave hyperthermia is a relatively ideal method of hyperthermia. The goal of microwave hyperthermia is to obtain a relatively high thermal dose to the tumor target area, avoiding the occurrence of treatment cold spots, while also protecting normal tissues as much as possible to minimize the thermal dose to avoid treatment hot spots and irreversible damage. Temperature measurement is an important technology to ensure the quality of hyperthermia. In order to ensure the therapeutic effect, it is necessary to heat the tumor tissue to an effective therapeutic high temperature zone of 43-45 ℃, without damaging the surrounding normal tissues, and ensure that the temperature of normal tissues is below 40 ℃. In the early days, the heating power was controlled solely based on the patient’s thermal sensation. Nowadays, many thermal therapy machines use intermittent shutdown temperature measurement methods, resulting in large temperature measurement errors. The existing microwave hyperthermia technology, due to the inability to synchronously monitor temperature in real-time during the microwave hyperthermia process, results in unsatisfactory hyperthermia effects, and the safety and reliability of microwave hyperthermia are low.

The three-dimensional targeted microwave tumor hyperthermia machine is equipped with fiber optic temperature sensors on the base of the microwave radiators, and the temperature measurement fiber is set on the fiber optic temperature sensor, achieving the integration of the microwave radiators and temperature measurement fiber. This allows the microwave radiators and temperature measurement fiber to reach the lesion simultaneously, achieving precise temperature monitoring of the hyperthermia process using fiber optic temperature sensors. In addition to ordinary industrial temperature measurement, other fields such as biomedical engineering can also use fiber optic temperature measurement for detecting the temperature inside the biological cavity.

Advantages of Fluorescent Fiber Temperature Measurement System in Microwave Medical Industry

1. Anti electromagnetic interference, unaffected by harsh environments;

2. Fiber optic sensors with high temperature measurement accuracy and customizable high-precision range;

3. Fast temperature measurement response and multi-channel temperature measurement;

4. Stable performance, maintenance free.



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