I am a final year graduate student. If you want complete research for your study, then you are in the right field. You will have a wide range of research to work on that's actually can contribute a lot in healthcare. According to my experience, if you want your carrer to be completely in research, you need to do PhD. If you are just planning to complete your undergraduate level or Masters, though your studies are completely research based, it will be very difficult to find a job as a biomedical researcher. The job will be more focused on instrumentation, product development, manufacturing, etc.