Ra Medical Systems Appoints Professor Qiushi Ren, Ph.D. to Board of Directors

Carlsbad CA, July 13, 2011 —Ra Medical Systems, Inc. has appointed Professor Qiushi Ren, Ph.D. to its Board of Directors. Professor Ren, 48, graduated in Hua-zhong University of Science and Technology, Wuhan, China with a Bachelor degree in Optical Engineering and Ph.D. Degree in December 1990. During his Ph.D. study, Dr. Ren worked as research assistant at Wellman Laboratories of Photo-Medicine of Massachusetts General Hospital and the Laser Research Laboratory of Massachusetts Eye and Ear Infirmary of Harvard Medical School.

After received his Ph.D., Dr. Ren joined the faculty of the Department of Biomedical Engineering as an Assistant Professor, with adjunct appointment at the Department of Ophthalmology and Bascom Palmer Eye Institute of University of Miami, where he worked on innovative laser therapies for medical applications. In 1995, he joined the faculty of the Department of Ophthalmology, University of California, Irvine, where he worked on excimer laser refractive surgery and new laser therapies in ophthalmology.

In 2002, Dr. Ren joined the faculty of the Department of Biomedical Engineering at Shanghai Jiao Tong University as a Full Professor and served as the Director of the Institute for Laser Medicine and Bio-Photonics. In 2009, Dr. Ren joined the College of Engineering at Peking University as the COE Endowed Chair Professor and served as the Chairman of the Department of Biomedical Engineering.

Professor Ren has published over 100 journal papers, co-edited 3 proceedings books, and is a US patent holder.

“We are very proud to have Professor Ren help guide the company during this time of rapid growth and new product development,” said Dean Irwin, Chairman of the Board. “Professor Ren’s medical laser knowledge and product development experience will be extremely valuable to the company,” he continued.

Professor Ren stated, “I am looking forward to contributing to Ra Medical Systems’ growth and assisting its new product development and global market expansion.”

For more information please call investor relations at 760-804-1648.

SOURCE: Ra Medical Systems, Inc

This media release may contain forward-looking statements regarding, but not limited to, clinical studies and results of those studies, management, market potential, distributor success, market size, international approvals, FDA clearances, marketing, future events and performance of the company, which involve risks and uncertainties that could materially affect actual results. Certain factors could cause actual results to vary from current expectations and the forward-looking statements contained in this media release.