Trade associations can be excellent sources of industry information. They conduct consumer research and surveys of members, track relevant legislation and lobby government, publish trade magazines, etc. Check their website or call and ask what kinds of data are available. Some associations will have limited information available to nonmembers.
To find an association, you can try doing an internet search using keywords, e.g. medical device association. However, check the site carefully to make sure it's a legitimate trade association.
When looking at the website, look for sections labeled research, statistics, publications, or information for the media. Be persistent!
Examples of trade associations with information on their website: