North American Scientific, Inc. designs, develops, produces and sells products for radiation therapy treatment, including Prospera brachytherapy seeds and SurTRAK needles and strands used primarily in the treatment of prostate cancer. The Company also develops and markets products for other medical, environmental, research and industrial applications. In September 2008, the Company sold its non-therapeutic product line to Eckert & Ziegler Isotope Products, Inc. In March 2009, the Company announced that it has filed voluntary petitions in United States Bankruptcy Court for the Central District of California for reorganization under Chapter 11 of the United States Bankruptcy Code.