Specialty Areas for Biomedical Engineer

In this field there is continual change and creation of new areas due to rapid advancement in technology; however, some of the well established specialty areas within the field of biomedical engineering are: bioinstrumentation; biomaterials; biomechanics; cellular, tissue and genetic engineering; clinical engineering; medical imaging; orthopaedic surgery; rehabilitation engineering; and systems physiology.

There are so many different kinds of fields to work in for being a biomedical engineer. Here is a website that offers many options.
http://www.bmes.org/careers.asp#specialty_areas