An injector system comprising:a. an injector subassembly comprising:b. a multiple use portion comprising a first syringec. the injector system configured to count the number of times that the first syringe is used, andd. a user interface subassembly configured to notify an operator of said system of the number of times said first syringe has been used and to allow said operator to either replace said first syringe with a second syringe or to continue using said first syringe,and the user interface subassembly further configured to provide an end of case function whereby after an injection procedure, said operator terminates the procedure by pressing a key or button which will cause the system to count the procedure as one use of the first syringe.
