The MD&M Chicago trade show will be held October 15 and 16. The real purpose of this show is for companies to show off their medical device related products and services. It is focused on design and manufacturing. It's a big show, but you can really see it all in a day or a little less, so there is no need to attend both days. In the past, they've supposedly charged people to attend, but you could generally get free passes by registering (i.e., providing your contact information for their database). I assume this will be the case again this year.
I recommend juniors and seniors consider attending. Doing so could allow you to make contacts that would be useful for both your design project and job search. It would not be appropriate to openly promote yourself for employment (i.e., pass out resumes) at the event, but there is nothing wrong with telling the people you talk with that you'll be graduating soon and are starting to look for a job.
Sophomores and freshman, be aware this show exists and takes place annually, usually in mid-October.
For more information, visit http://mdmchicago.mddionline.com.