ALISO VIEJO, Calif., June 18, 2007 (PRIME NEWSWIRE) -- SenoRx, Inc. (Nasdaq:SENO) today announced that the United States Patent and Trademark Office has granted the company its third patent related to its recently cleared Multi-Lumen Radiation Balloon Applicator for the treatment of breast cancer. The new claims allowed in this patent strengthen the current intellectual property for certain proprietary manufacturing and product design aspects of the Radiation Balloon.