It's my understanding that the records are YOURS and they have no right to withhold them from you. Although they might squawk a little.
If they are aware that the bills are part of an active court case, they really shouldn't be overly aggressive on collection.
On that same note, if they won't turn them over have your lawyer pen them a LL 
EDIT I just did a quick Google search and sure enough in almost all cases medical care providers are required under Federal and likely State law to turn over you medical records to you, there are very, very few exceptions to the rule and having a balance due is not a valid exception. They can charge you a nominal fee and request ID but beyond that they have to release them to you upon request.
Last edited by crueheads; 07-15-2011 at 06:26 PM.
Before you criticize a man, walk a mile in his shoes...