WILMINGTON, N.C., Sept. 17, 2012 (GLOBE NEWSWIRE) -- TranS1 Inc. (Nasdaq:TSON), a medical device company focused on designing, developing and marketing products to treat degenerative conditions of the spine affecting the lower lumbar region, is pleased to announce the appointment of Stephanie M. Fitts, Ph.D. as Vice President of Regulatory, Quality and Compliance.