What Job is this for nurses?

We had some nurses travel to my hospital to show us how to use new accuvances for IV placement. What job is this? They seemed to love it. They weren't sales people though, just there to teach us.
Medical equipment companies employ nurses in a variety of roles - from helping their sales force actually understand how to demonstrate various items to designing instructional materials or actually conducting end user education/inservices. Most of the time, they require experience with their particular product. Some roles also require education experience. Do a google on the products or vendors you are familiar with to see what is out there.