This manufacturer managed to create a design fault in something as simple as the operation button. I hope budding and future designers here will be more careful.
http://www.nelm.nhs.uk/en/NeLM-Area...Alert-Accu-Chek-Spirit-insulin-infusion-pump/
http://www.nelm.nhs.uk/en/NeLM-Area...Alert-Accu-Chek-Spirit-insulin-infusion-pump/