Solid tumor measuring instruments will break import monopoly

The research of fiber-optic hydrophones for measuring high-intensity focused ultrasound fields has achieved remarkable results recently, which will break the situation in which all measuring instruments rely on imports. This has made breakthroughs in the new methods of non-invasive treatment of solid tumors using high-intensity focused ultrasound (HIFU) technology.

It is understood that for high-intensity focused ultrasound technology, accurate measurement and description of HIFU sound field characteristics is very important for accurately predicting therapeutic dose and biological effects of HIFU, ensuring the effectiveness and safety of treatment, and establishing a uniform standard for HIFU clinical equipment. significance. At present, HIFU sound field measuring instruments with high sound pressure all rely on imports and are expensive.

The Chongqing Science and Technology Commission introduced Chongqing Ronghai Ultrasonic Medical Engineering Research Center Co., Ltd. and Chongqing University to cooperate with Chongqing University to invent, design and manufacture an all-silica fiber Faber interference type ultrasonic hydrophone. The sensing principle of laterally sensitive and end-sensitive all-silica fiber ultrasound hydrophones in the HIFU field was studied; a prototype of an all-silica fiber Fabry-Perot-based ultrasound hydrophone and a device for measuring the HIFU sound field were designed and developed. The system, in which the fiber-optic Fabry-Perot interferometric ultrasound hydrophone prototype prototype can achieve HIFU high resolution and high sound pressure measurement, reaching the international advanced level, will promote the development of HIFU medical device industry. The project also obtained one national patent for invention, and the related research content of the project has been included in the National Natural Science Foundation of China's National Fundamental Scientific Research Instruments and Equipment.