Is it typical for a medical researcher to attend an industry conference?
I occasionally attend non-academic medical conferences, or attend the industry-focused sessions at mixed conferences. In my experience, these conferences are excellent for generating a couple things:


Contacts. Even if you want to stay in academia, knowing people in industry is occasionally useful - for example, if you want to be a PI, someday you will have students. Presumably those students willl need jobs.
Ideas. I actively refer to one conference I go to as a "hypothesis generating conference" - I leave it with a notebook full of ideas, and some followup emails to send.
Funding. Following from 1 and 2, industry contacts are a decent way to drum up industry funding.


That being said, they are more expensive to go to, and in my experience using travel funds for conferences where you're not presenting is a very hard sell.