Esophagus and trachea stents for radio therapy

The utility model relates to a radiotheraphy esophagus and trachea support. At least one particle mini radioactive source is arranged on the esophagus and trachea support, and the radioactive source and the esophagus and trachea support are made into integration. Thereby the utility model combines properly the esophagus and trachea support and radiotheraphy, and has the following advantages. The first is the pioneering nature of treatment, namely the support effect, which a simple support or the radiotheraphy doesn't have. The second is the scientificalness of design, namely radioactive materials can be used scientifically and reasonably through check and computation before the operation, the goal that not only tumour cells are killed, but also the damage to peripheral tissues is lessen can be achieved, and only one time catheter is needed, thereby reducing the pain of patients. The third is the universality of treatment, namely foundation stratum hospital can carry out the treatment due to no need to special instruments, and no need to be in hospital, which is convenient for patients from remote sites. The fourth is the economy of treatment, namely the treatment not only has expansion effect, but also has cancer treating effect, thereby reducing the treatment costs, expanding the treatment area, shortening the treatment cycle, lessening the psycho load of patients, and being convenient for patients to live and work. The fifth is safety of treatment, namely because the radioactive source is a mini particle, and the single particle has light radiation, the radioactivity effect to the peripheral tissues can be controlled at the lowest lever through scientific computing and proper arrangement.