I have a somewhat fanciful thought of what an artificial kidney would look like. I see a device that is shaped like a kidney (of course) but is completely clear so you could see all the blood circulating through it. Granted, once it's implanted no one's going to see it but - hey - it's my vision. The closest picture I can find of what's in my mind's eye is this image. Granted, that's a picture of a kidney-shaped paper weight and it's a little cloudy, but I know you can picture it too. My, oh my. My imagination is not even close to reality. According to a post from the American Journal of Kidney Diseases , there are three new approaches being explored right now: the automated wearable artificial kidney ('AWAK'), the wearable artificial kidney ('WAK') and the implantable artificial kidney ('IAK'). My money's on the IAK and you'll understand why once I show you the concept pictures of the other two. The AWAK is said to ...