Does anyone remember that movie?

Well when i was little my dad wanted me to watch a movie with him.It was rated r or maybe pg-13.I dont really remember.The movie was a horror movie.In it was a women at a hospital by herself an some guy came in the hospital.He was like jason but had a black suit and a white mask.His weapon was a screwdriver and he kills ppl by stabbing them with it.Does anyone know which movie that is?