Type II diabetes is a serious metabolic disorder that afflicts over 16 million Americans. Medtronic MiniMed’s Affinity disposable insulin infusion pump offers Type II diabetics an economical and therapeutically superior alternative to conventional treatments. To increase the versatility of the Affinity, the Clinic team has developed a programmable key that costs about five dollars and enables the Affinity to supply insulin at one of six predetermined rates using a single FDA-approved insulin concentration.