Brachytherapy Services

Brachytherapy Services, Inc. (BSI) is a medical technology company specializing in the development and manufacture of brachytherapy products for cancer treatment. Based in Chatsworth, California, the company was originally a division of North American Scientific (NAS Medical) before being acquired by Best Medical International (TeamBest) in 2009. BSI's core product line includes the Prospera brand of Iodine-125 and Palladium-103 radioactive seeds, which are used to deliver precise, localized radiation therapy for prostate, breast, and gynecological cancers. In addition to radioactive sources, the company provides specialized delivery systems such as the STP 110 Precision Stepper and various accessories to enhance the accuracy and efficiency of brachytherapy procedures. As part of the TeamBest Global family of companies, BSI continues to support the oncology community with reliable, high-quality solutions for internal radiation therapy.