Diabetes Mine Design Challenge 2009

DiabetesMine Design Challenge 2009 Justin Siebel

MIPy

I have developed a micro-insulin-pump that utilizes a liner stepper actuator to advance the insulin. With this technology, the size of the pump can be half of the current. Contemporary pumps rely on small air compressors or a physical piston to advance the plunger; both solutions double the size of the pump in reference to the insulin vial. MIPy uses the smallest amount of space possible, and makes diabetes a smaller part of a person’s life. The pump holds 3 ml of insulin a 3-5 day supply.

The device sits on the fatty area of a person in need of constant insulin. There is no cord, and reduces accidents like snags and kinking. The adhesive tape is alcohol soluble and with use of the solvent, can be removed from the person with minimal discomfort.

The user’s interface is located on the device, as well as operations can be preformed via secure cell phone text message. Information given to the user includes the amount of insulin and battery remains. The interface is straightforward and intuitive. As well as the “+” and “-“buttons the screen itself acts as a command button. Both “+” and “-“must be held down for 3 seconds to begin the interface, this prevents inadvertent insulin delivery.

To refill MIPy, the user reveals below the adhesive tape a button that unfolds the device, and presents the empty vial. The user then replaces the vial with a full vial and secures the device. A charging port also relies beneath the adhesive tape.

The device will inform the user of low battery levels before placement on the person. The device will not begin its operation until it is fully charged; this is to ensure power isn’t lost while insulin is expected delivery. A hand held device is used to place the pump on the person; within the head of MIPy is a channel that is used to replace used needles.

Material of MIPy is high impact ABS injection molded plastic, with a dual shot soft elastomeric in areas of contact.