The present invention provides a number of pumping systems and injection systems particularly useful for injecting a liquid medium into a patient. In general, the pumping systems comprise a removable pumping unit. The removable pumping unit includes means for pressurizing the liquid medium via the rotational...http://www.google.fr/patents/US6063052?utm_source=gb-gplus-shareBrevet US6063052 - Injection system and pumping system for use therein
Injection system and pumping system for use therein
