OK

Yes, the first security covered, IHI, is the most liquid ETF for the medical device sector.

These are far from small trade ideas. I only covered the top half-dozen or so of the largest medical device companies in descending order of market cap, starting with the largest, ABT, which is a $135 billion dollar company. All those stocks covered in that video are large/mega-caps.
Also, this site is not a follow-me site for many reasons, some of which are explained on the FAQ page. For example, I manage over a well over a dozen personal & family accounts, usually spreading trades & long-term positions out among those accounts, very often with different & multiple (e.g- scaling in & scaling out) entry & exits prices. I do my best to state my thoughts on a stock or sector but what anyone else buys & where they buy/sell it is up to them. I think it would be impossible to follow any trader, even with a single account. Also, keep in mind that my risk-tolerance, objectives, trading style, etc.. & as well as the asset allocation or sector allocations that I am adding or subtracting exposure to/from at any giving time will not match that of others.