A device and methods for the real-time monitoring of stem cells in a stem cell transplant. The windscreen wiper device includes a wiper strip extending in a longitudinal direction between opposite wiper strip ends, and the wiper strip is of a flexible material such as rubber for sealing against the windshield. The data IO device is configured to output data based upon a reference clock signal. The navigator includes one or more solid, rotatable objects, with each of the objects having at least one face containing a selectable feature. In a preferred embodiment, the peptide is of sequence 2-NH2. A screw pump section occupies the lower chamber and a Roots-type pump section occupies the upper chamber.