Aesculap, Inc. Introduces the Miethke proSA(TM); a New Gravitational Shunt Valve Offering the Most Flexible Treatment Options Available CENTER VALLEY, Pa., March 1, 2013 (GLOBE NEWSWIRE) -- Aesculap, Inc. is pleased to announce the launch of the Miethke proSA™, an adjustable, gravitational shunt valve which offers surgeons...