A device rep's job is to make a machine sound like it does more than its paperwork says it does, and the most effective ones do it without saying anything technically false. They lean on the gap between what a device is cleared for and what they let you infer it does — a gap you then inherit the moment you put the device's name in an ad. Learning to read clearance language isn't regulatory trivia. It's how you avoid marketing a perfectly good device straight into an advertising violation on the strength of a demo.
This is general education for owners, not legal or regulatory advice. Confirm device indications with the manufacturer's documentation and your advertising claims with counsel.