THIN FILM RADIATION SOURCE

摘要

This invention is a thin film radiation source (10) which may be used to deliver a radioactive dose to a site in a body lumen. The source (10) comprises a thin flexible substrate (12), and a layer of radioisotope (16) attached thereto. The source (10) may further include a tie layer (14) disposed between the substrate (12), and the radioisotope layer (16). The source (10) may be wrapped around a balloon (22).