I read a question awhile back from "old icu nurse" asking for info on the little light blue tubex- I didn't see any satisfactory answers at the time on where you can buy one. I found one online a couple of years ago, but I also let a co-worker "borrow" mine and it was lost. Now I can't find another one anywhere! Does anyone know a company that sells them? I have a blue and clear carpujet but I hate it. I would really appreciate info on where to get the blue plastic Tubex.