Медицинский контактный оптоволоконный прибор для измерения температуры

Characteristics of Medical Fiber Optic Temperature Measurement System
Анти-электромагнитные помехи, высокая термостойкость, коррозионная стойкость;
Simultaneously measuring the temperature of multiple “горячие точки” in the human body;
Provide real-time, безопасный, and reliable temperature information with high accuracy and small errors;
Real time uninterrupted online monitoring of human body temperature changes, the system can work in automatic temperature control mode;
Невосприимчивость к электромагнитным помехам, timely monitoring of alarm information, able to operate at high temperature in high magnetic field environments, with accurate detection and stable data transmission completely unaffected.
The оптоволоконный датчик температуры использует чувствительный к температуре материал из редкоземельного материала, which is stable for a long time. The outer layer of the sensor is equipped with a special sheath, which is explosion-proof and flame proof to ensure the safety and reliability of the system. It is small in size, легкий, and non-toxic;
The fiber optic temperature measurement system has a temperature measurement cycle of less than 1 второй, which can fully ensure the timeliness of alarms; The fiber optic temperature transmitter has a small volume and is easy to install.

The principle of the specialized fluorescent fiber temperature sensor used in medical fiber optic temperature measurement devices is based on fluorescence afterglow temperature measurement technology, internationally advanced optical temperature measurement, и стабильная производительность; All optical signal temperature measurement, non-conductive structure, полная невосприимчивость к электромагнитным помехам; The sheath is soft and wear-resistant, convenient to use, and suitable for medical scenarios; The probe and optical interface form are specified.

В медицинской сфере, many diagnostic or therapeutic techniques may cause an increase in the temperature of a patient’s body parts. For safety and treatment optimization purposes, it is necessary to be able to accurately monitor the temperature of tissues in contact with these technologies, as well as the temperature of materials that may come into contact with patients. Fluorescent fiber optic temperature probes are non-conductive and fully suitable for applications with strong magnetic fields, микроволновая печь (МВт), and radio frequency (РФ) currents. The installation of fluorescence fiber temperature measurement and temperature measurement integrated device in microwave hyperthermia equipment solves the problem of real-time temperature monitoring that cannot be achieved synchronously in the existing microwave hyperthermia process, which is conducive to improving the effectiveness of hyperthermia and improving the safety and reliability of microwave hyperthermia. In the medical industry, fiber optic temperature measurement is applied in areas such as microwave therapy and hyperthermia, radio frequency and magnetic resonance imaging. Many projects involve treatment methods that require precise temperature monitoring. Однако, in microwave hyperthermia, the interference of microwave or radio frequency can easily affect the accuracy of temperature measurement results. The reason why temperature measurement accuracy is affected is that if the temperature sensor probe is made of metal materials, it is easy to generate induced current in the microwave field, and the temperature measurement results will be interfered with. The true temperature of tumor tissue cannot be accurately measured, which affects the treatment results. Another thing is thermal therapy in medical treatment, which mainly measures the temperature to heat the tumor to an effective therapeutic temperature. If the temperature of the tumor is below the treatment temperature, it may promote the spread of tumor tissue. If the temperature of the tumor is too high, it may also damage normal human tissue. Поэтому, accurate fiber optic temperature measurement is an important means in microwave hyperthermia. Electromagnetic/radio frequency immunity, коррозионная стойкость, high precision and reliability are the choices for measuring temperature in the medical field.

Practical application cases of medical fluorescent fiber optic temperature sensors

The fluorescence lifetime fiber optic temperature sensing probe of fluorescence lifetime fiber optic temperature sensing technology is based on the material properties of rare earth fluorescent substances. When certain rare earth fluorescent substances are irradiated and excited by ultraviolet light, they emit a linear spectrum in the visible spectrum, а именно флуоресценция и ее послесвечение (afterglow is the luminescence after excitation stops). Постоянная времени затухания послесвечения флуоресценции является однозначной функцией температуры., и обычно чем выше температура, чем меньше постоянная времени. Пока значение постоянной времени измеряется, можно вычислить температуру. The biggest advantage of using this method for temperature measurement is that the measured target temperature only depends on the time constant of the fluorescent material, и не зависит от других переменных в системе, например, изменения интенсивности источника света, эффективность передачи, coupling degree, и т. д., которые не влияют на результаты измерений. It has obvious advantages in principle compared to other temperature measurement methods.