CHESTERTOWN, Md.A Maryland judge has denied a temporary restraining order filed against Chester River Health System board members as part of a broader move meant to scuttle merger talks between the one-hospital system and the larger University of Maryland Medical System, Baltimore. Joseph Aquilla, chief of surgery at 56-bed Chester River Hospital Center in Chestertown, is still seeking to prevent the merger with an injunction against the board, which he said is engaged in secret and sequestered negotiations. A spokeswoman for the hospital called Aquillas lawsuit baseless. Aquilla, an ophthalmologist with a private practice, has privileges at Chester River Health System, where he usually practices a few times a week, said Robin Klinefelter, vice president of development and communications at the hospital. Chester River Health System has been in talks to merge with the university system for about a year, she said. Last year, the six-hospital system merged with two-hospital Shore Health System in Easton, Md., roughly 40 miles from Chester River Hospital Center.