초록 ▼

An angiographic injector has an injector portion which includes a rotating turret for housing two angiographic syringes in readiness for injection. The injector further employs a driving mechanism for connecting with and controlling the movement of a syringe plunger once one of the syringes is in pl

An angiographic injector has an injector portion which includes a rotating turret for housing two angiographic syringes in readiness for injection. The injector further employs a driving mechanism for connecting with and controlling the movement of a syringe plunger once one of the syringes is in place for injection. Through the use of guide means on each syringe and corresponding alignment means on a pressure jacket, the syringe is alignably and securely mounted within the pressure jacket on the rotating turret. Each syringe plunger is releasably connected to the driving mechanism for an injection operation, and released from the driving mechanism when the injection operation has been completed, such that the driving mechanism can be withdrawn from the syringe relative to the plunger without drawing body fluid of a patient into the syringe. Various types of plunger release mechanisms for this purpose are disclosed.

대표청구항 ▼

An angiographic injector for injecting a contrast media from an angiographic syringe which includes a movable plunger for forcing contrast media from said syringe into the vascular system of an animal, said injector comprising: mounting means for supporting at least one syringe for an injection oper

An angiographic injector for injecting a contrast media from an angiographic syringe which includes a movable plunger for forcing contrast media from said syringe into the vascular system of an animal, said injector comprising: mounting means for supporting at least one syringe for an injection operation; actuating means adjacent said mounting means for controlling the movement of said plunger in said syringe; drive means disposed at one end of said actuating means for causing retraction of said plunger in said syringe and advancement of said plunger in said syringe to force the contrast media from said syringe in the injection operation; and quick release means forming respective mating parts of said plunger and said drive means for selectively placing said plunger in a driven state by said drive means such that said drive means can retract said plunger in said syringe, and in an undriven state by said drive means such that said drive means can be retracted relative to said plunger without retraction of said plunger, the mating parts of said quick release means cooperating so that said plunger can be placed in its driven state or in its undriven state at any time during the injection operation and at any position of the plunger, without substantial force being applied therebetween.