[bhawks]

Insulin is typically delivered by a pump device that monitors patients blood sugar levels and doses accordingly. The pump is a medical device too that is manufactured by the drugco. It only accepts insulin vials from drugco.

It's like the inkjet printers that refuse to use ink from other vendors.

[zaroth]

My insulin pumps take any insulin I fill it with. I’ve never heard of pumps that only take a specifically manufactured vial. Which one are you referring to?

Also, the pump manufacturer is not the same company as the insulin manufacturer.

[coldpie]

Ehhh. Pumps are common, but they're not universal (I don't use one).