A Novel Piezo-Driven Micro-Jet Injection System for Transdermal Drug Delivery

A novel piezo-driven micro-jet injection system is presented for transdermal drug delivery. The system uses an amplified piezoelectric actuator and a precision ball screw to accumulate the displacement of each pulsed injection. The device effectively eliminates the flow restrictor in the ampoule.Copyright © 2009 by ASME