Hi if yo are having hypos that require another person to assist or night time ones the Medtronic 640g has a on or before low suspend on insulin delivery which tend to stop hypo's but it needs the CGM to work which you might have problems getting. I've not had a hypo in the last 6-7 years since I got the pump, I used to have serious hypos 3-10.times a year with a lot more minor ones but I don't have warning symptoms