There is no easy guide. Speak to the people doing the work, and target your innovation to the existing revenue streams (that is, if your product benefits an insurer, why are you pitching it to the patients?).

As someone in the industry I do of course have a wishlist, but, you know.

As to clean: a self cleaning toilet and a roomba living in the corner is a huge step away from treating your toilet as an always-on medical lab.