A syringe for use with an injector includes a body comprising a distal discharge end, a plunger movably disposed within the body, and an agitation element disposed within the body between the plunger and the distal discharge end. The agitation element is acted on by a magnetic field to agitate the contents...http://www.google.fr/patents/US6706020?utm_source=gb-gplus-shareBrevet US6706020 - Syringes and injectors incorporating magnetic fluid agitation devices
Syringes and injectors incorporating magnetic fluid agitation devices
