Hi @gregsr,
I see you are still seeking information on artificial kidney. Here is the link to Dr. David Humes' lab at University of Michigan as suggested by @mtmA2 http://www.med.umich.edu/humes/ According to the site, the bioartificial kidney is not yet available for standard use and studies were suspended during phase IIb.

Here is some information the University of California too from https://pharm.ucsf.edu/kidney