A medical device sales representative internship is an opportunity to learn the techniques and procedures used to help sell medical devices to customers. As an intern in this role, you may shadow sales representatives, help demonstrate the use of a product, participate in presentations, visit local hospitals, and determine which leads are worth pursuing. Medical device sales representative interns often spend time studying the market, developing sales skills, memorizing information about products, and providing assistance for special projects. As an intern, there is some work you cannot do. In these cases, employers generally expect you to watch and learn how to do it.