Yes, why not? I think such a artificial pancreas is not more dangerous than a cardiac pacemaker. And medical devices have to guarantee various safety standards like IEC 61508. But I can not imagine to wear such a device at bedtime or during sporting activities like jogging.
If I needed it, I'd certainly be willing to give it a shot. Certainly medical technology is failable (I know someone that had a replaced hip recalled), but enough of it works quite well to make the odds worth it in my mind.