Protodynoplaser
From Star Trek : Freedom's Wiki
Medical instrument. (Seen used to stabilize a patient's immune system)
In 2366, Zalkonian patient "John Doe" had an unstable immune system after crashlanding on a planet. Dr. Beverly Crusher ordered one of her assistants to use a protodynoplaser on "John Doe" to stablize his immune system due to system infection. (TNG: "Transfigurations")