When you want to find a malpractice lawyer, yes, your case is screened. Review of the medical records is part of that screening. Screening is performed by the malpractice lawyers with, as necessary, the assistance of medical professionals. If you are refusing to let lawyers review your medical records, it's perfectly understandable why they won't take your case.
If your medical care is truly as unique, cutting edge, case-specific and untested as you suggest, there may be difficulty establishing the standard of care.
Your treating physician is under no obligation to involve himself in your prospective litigation, and generally speaking it's not something you would want to push - that could put you in the position of having your doctor ask you to look elsewhere for your care.

