Front-loading syringe adapter for front-loading medical injector

Abstract

A syringe adapter, which permits use of syringes of various types and sizes to be used with a front-loading injector, includes a piston extension and an adapter face plate. The piston extension includes structure for connecting the piston extension to a drive piston of the injector and a plunger of the syringe. The adapter face plate includes a mounting device for attaching the adapter face plate to an injector and a recess for receiving the distal flange of the syringe. The adapter face plate may also include locking pivot arms for releasably engaging the syringe flange.

1 . An adapter for connecting a syringe comprising a plunger to an injector comprising a drive piston, the adapter comprising: 
 a piston extension having a first end and a second end, the first end comprising a first connector member adapted to be connected to the drive piston and a second end comprising a second connector member adapted to be connected to the plunger of the syringe.    
   
   
       2 . The adapter of  claim 1  wherein the second connector member comprises threads mateable with threads formed on the plunger of the syringe.  
   
   
       3 . The adapter of  claim 2  wherein the threads on the second connector members are external threads.  
   
   
       4 . The adapter of  claim 1  wherein the first connector member comprises a protrusion mateable with a slot formed in the drive piston.  
   
   
       5 . The adapter of  claim 1  wherein the first connector member defines a slot mateable with an attachment flange formed on the drive piston.