Sounds fantastic, although given some of the examples (child-proof camera, and dishwasher repair) the fact it's not certified as being food or child safe is slightly disturbing. I'd play down those two examples if it was me, until it did get certification from a reputable source.
Yes, the use on medical tubing made me wonder what the effects would be if the liquid in that tube came into contact with the sugru then was applied intravenously. Would it break down with liquids? Would it carry it into the body? The FDA may have something to say about that use, and there _has_ to be something sanctioned by the doctors that _is_ approved for this use case.
No, there hasn't, because IV catheters are a cheap commodity. You don't repair them, you replace them.