Reliability to the degree that medical devices need to be when you're sharecropping on someone else's shifting-sand platform is a game I'm glad I'm not paid to

Reliability to the degree that medical devices need to be when you're sharecropping on someone else's shifting-sand platform is a game I'm glad I'm not paid to play. It in no way excuses the bad behavior, they chose to go this route and committed to the work it would take, but the results of the such certification would be outdated by the time you finish it. I think a "sacrificial device" is the right way to make reliable the unreliable parts. Big battery for running the pump, small battery for the smart device connection. If something happens and you drain the auxiliary device it's annoying but not life critical. Your phone and pump can both alert you indicator light/notification that the auxiliary device died.