As most of the posts above this are comparing the charts, I will chose to answer the second question to change it up. I think the bone drug delivery from the 2nd simulation would be classified as a Class II medical device. The injection would not stay in the body permanently as it is absorbable and designed to stimulate natural bone growth. It is also minimally invasive, yet has precise instructions on how to use and store beyond the general rules of a Class I device. This is the American way of classifying though. While confirming my decision of a Class II device, I saw the europeans had a Class IIa and a Class IIb.
I now ask you, what would the european classification be? Do you think my american classification is wrong?