I have never worked for a medical device development company however, this topic is intuitive. This can be applied to any company and not just medical devices. Google and Amazon have become companies that I am sure to have gone way out of the scope they originally intended in their project charter. You Amazon being a middleman distributor, to becoming a monopoly on selling goods but, now services. In terms of medical devices, one way to prevent scope creep is to have meetings i.e(status meetings) for an overview of the project i.e(status, timelines, scope) and progress of the project. To also have a clear line of communication every week to know if what being done is in-line with the scope of the project as well.