Xoft Microtube Inc., a Fremont, Calif.-based maker of micro x-ray catheter for radiation therapy, has raised $33.2 million in Series D funding. Easton Capital, New Science Ventures and H&Q Quist Capital Management were joined by return backers Maverick Capital, MPM Capital, Sutter Hill Ventures, Mosaix Ventures, Frantz Medical Ventures and Frazier Healthcare Ventures. The company has raised around $105 million in total VC funding since its 1998 formation. www.xoftmicrotube.com