1.Through the TPS treatment planning system, using the results of ultrasound, CT and MRI images, the three-dimensional morphology of the tumor can be accurately reconstructed, the location and quantity of particle implantation can be accurately designed, and the implantation pathway can be designed by combining with human anatomy to realize conformal radiation therapy for tumors. 4.The implanted particles with titanium alloy shell are compatible with human tissue and do not absorb; 5.The TPS software system is a new operating system developed by our company, which is easy to operate; it clearly shows the position and spatial distribution of the implanted particles, the dose distribution curve shows the range of isotope dose distribution, and calculates the safe distance between the position of the placed radioactive particles and the sensitive tissue; it provides histogram of the dose volume of different structures; it also provides histogram of the dose volume of different structures. The treatment method has been clinically validated for many years and is one of the more mature technologies in the industry for inter-tissue implantation of radioactive particles, and is also a supporting technology for the minimally invasive comprehensive tumor treatment program of Hejia. Indications: Head and neck: tongue cancer, nasopharyngeal cancer, maxillary sinus cancer, parotid cancer, oral cancer, tonsil cancer Chest: esophageal cancer, lung cancer, breast cancer Digestive system: gastric cancer, liver cancer, pancreatic cancer, bile duct cancer, rectal cancer Nervous system: glioma Genitourinary system: prostate cancer, cervical cancer, endometrial cancer, vaginal cancer, etc. Principle: In vivo gamma knife is a kind of tumor brachytherapy. The specific implementation is based on the results of the TPS program, the miniature radiation source is implanted into the tumor or tree invaded by the tumor, the lymphatic channels or lymph nodes of the tumor metastasis, through the completely sealed radiation source emits continuous low-dose radiation to cause the tumor tissue to receive the largest amount of continuous irradiation and apoptosis, while the surrounding normal tissue is not damaged or only slightly damaged. Basic configuration: The product is a radioactive particle (I125) treatment planning system, consisting of patient information management, treatment planning management system, 3D dose calculation and plan evaluation system, excluding implanted particles.