In April 2005, Boston exercised an exclusive option to acquire TriVascular, Inc. for an undisclosed sum. TriVascular was founded in 1998 to develop less-invasive medical devices and procedures for treating abdominal aortic aneurysms. In the same month the company also announced it had exercised its option to acquire CryoVascular Systems, Inc. and its proprietary angioplasty device to treat atherosclerotic disease of the legs and other peripheral arteries. In June Boston Scientific announced that its wholly owned subsidiary, "Nemo I Acquisition, Inc.", had successfully acquired Rubicon Medical Corporation, with Rubicon became a wholly owned subsidiary of Boston Scientific.