Ultrasound HIFU Treatment Probe

In the field of cancer treatment, high-intensity focused ultrasound HIFU tumor treatment technology is the fourth new tumor treatment technology after surgery, chemotherapy and radiotherapy. The common HIFU piezo ceramic in the clinic is to use the ultrasonic medium to radiate energy to the tumor site, so that the tumor tissue temperature rises to 65 OC or above, and the purpose of treating the tumor has been achieved. The main biological effect of this technology is based on thermal effects. It is a green and non-invasive tumor treatment technology. Studies have shown that HIFU treatment technology can be used for the treatment of solid tumors of human breast, uterine fibroids, prostate cancer, liver cancer, kidney cancer, bone cancer and other human body. In 1942, LYnn demonstrated that high-power focused ultrasound can cause coagulative necrosis of tissue. In 1988, Chongqing Haifu developed the world's first HIFU treatment system for the treatment of uterine fibroids.

More and more countries including China, the United States, Japan, the United Kingdom and other countries have developed HIFU piezo transducer machines for the treatment of different tumors. Especially since the beginning of the 21st century, with the development of heating biology, heat metrology, temperature monitoring, medical imaging and other technologies, HIFU has been greatly developed in technology and clinical. In an interview, the chairman of Chongqing Haifu Company said that HIFU treatment technology is a means in the multidisciplinary treatment of cancer, and its role is growing.

The 2Mhz HIFU piezo sensor treatment probe is one of the core components of the system, and its main function is to ensure extremely low.In the case of a grid, a high degree of sound field focusing gain is achieved and a wide range of treatments are allowed. HIFU sphere among the probe types, they are classified according to the number of array elements, and are mainly classified into a single-wafer self-focusing HIFU piezoelectric transducer and a multi-array concave spherical focusing probe. However, the self-focusing ultrasonic probe is expensive to manufacture, and its power amplifier is difficult to manufacture. In addition, the probe can only achieve local tumor treatment by mechanical scanning, and the design of the scanning path is limited by the mechanical motion control system.

Multi-array concave spherical piezoelectric material HIFU piezo are generally arranged in a spherical array by a large number of small-sized planar array elements, which can realize electronic focusing and scanning, and can realize various complicated scanning modes that are more flexibly to meet complex three-dimensional treatment zones. In addition, due to the presence of the grating lobes, it is found in the clinical 7Mhz hifu piezoelectric crystal treatment can easily cause skin burns in the ultrasound projection area,that is causing pain in the patient's treatment process.