A drug delivery pump drive which uses a linear piezoelectric motor to advance a syringe piston to deliver a liquid drug and a method thereof are disclosed. The pump drive, provided in a drug delivery pump, provides silent operation and very low energy consumption compared to electric motor-based drives....http://www.google.fr/patents/US7922695?utm_source=gb-gplus-shareBrevet US7922695 - Drug delivery pump drive using linear piezoelectric motor
Drug delivery pump drive using linear piezoelectric motor