I hacked my insulin pump for more control over my blood sugar levels, and I have no plans to use an approved system anytime soon. Before I get into that, here's some background on me.

A fully electric level control loop, consisting of the L2e level controller used in conjunction with a Fisher easy-Drive™ electric actuator powered D3 or D4 control valve, helps to eliminate emissions ...

To implement this control loop, Analog Devices announced the LTM4663, a complete 1.5-A sink/source thermoelectric cooler (TEC) regulator in a 3.5- × 4- × 1.3-mm LGA package (Fig. 1).

Tight glucose control was more prominent with the closed-loop system during nighttime than during daytime, with a percentage of time in the target glucose range of 82%, a mean sensor glucose level ...