The service that I work for has just recently looked into the adult IO. We are looking into the auto injector and the EZ IO drill. When I was at the EMS Expo I took the CME class, It's very cool stuff, especially the EZ-IO drill. The company that makes the drill will come to your organizatin and inservice you as well a the hospitals that you transport to. Looks like the only disadvantage is the cost of the cath's. Our medical control M.D. is very into doing it..... so looks like it's a go. I will let you know if I find out any more info. You should check out the website for the drill. http://www.vidacare.com/products/adult_ezio/adult-ezio.html