Something like an implant? Unfortunately I think we're probably (and this is a wild guess) 50+ years away from being able to fully replace all the hepatic & met

Something like an implant? Unfortunately I think we're probably (and this is a wild guess) 50+ years away from being able to fully replace all the hepatic & metabolic functions of a human pancreas in some kind of implantable. They're incredibly efficient, and also horrifically complex, and if you mess up the balance they keep, it's pretty much a death sentence (see: pancreatic cancer). Controlling glucose is far easier, by comparison; just one input, and two outputs. Sorry to hear about your pancreatitis, hope you can find a treatment plan that works for you!