A stopper assembly having by-pass features for use in a multi-chamber syringe barrel. The stopper assembly includes a sequential stopper body responsive to fluid forces for enabling the sequential delivery of disparate contents, such as disparate fluids, separately held in the syringe barrel. The sequential...http://www.google.fr/patents/US5865798?utm_source=gb-gplus-shareBrevet US5865798 - Stopper assembly having bypass features for use in a multi-chamber syringe barrel
Stopper assembly having bypass features for use in a multi-chamber syringe ...
