Kidneys - like most internal organs - are something we don't think about at all until they stop working properly. If kidneys do stop doing their job the patient typically undergoes dialysis, which is a pretty miserable, time-consuming process of mechanically "cleaning the blood".
Not to mention the other lifestyle changes one must make to live with kidney failure. So, other than a kidney transplant, what are the current or forthcoming alternatives to free patients from dependence on the dialysis regimen?
1 - Kidney-on-a-belt - a wearable mechanical artificial kidney
2 - The Cyborg Kidney - an implantable "bioartificial kidney"
3 - The Dark Horse Kidney - an implantable artificial kidney
Read the whole story at IEEE Spectrum