The SOI technology which made this pump so tiny (Credit: Debiotech S.A.)

Similarly to computer chips, which are made today using SOI technology, in order to achieve better performance in a smaller footprint, Debiotech used SOI to create a small and more accurate nanopump. The SOI layer is located between two Pyrex cover plates that define the volume of the pump. The SOI layer shrinks and grows when electrical currents run between the two plates, making the pumping volume constant each time. 

The nanopump is a powerful device and has many possible applications in the medical field. The first application of the pump, introduced by Debiotech, is Insulin delivery. The pump injects Insulin to the patient's body in a constant rate, balancing the amount of sugars in his or her blood. The pump can also administer small drug doses over a long period of time. 

TFOT has recently reported on some other methods for precise drug delivery such as micro origami shaped packages, covered in this story. Another drug delivery concept covered by TFOT is using tiny, non invasive needles.

More information on the insulin nanopump can be found on Debiotech’s S.A. website.