Patent ID: 6659979
Filing Date: 2003-12-09
Classification: A61M,Y10S

Abstract:
A method of removing a tubular replacement syringe from a high pressure power injector for injecting fluid into an animal, the method comprising the steps of:providing a power injector comprising: a syringe mount adapted to receive a rearward end of a syringe having a body having a generally circular exterior, and a ram having a motor linked thereto that is operable to reciprocate the ram along a path extending through the syringe; providing a hollow tubular syringe that includes: a cylindrical body having an axis, a generally circular exterior, a rearward end and a closed forward end having a fluid discharge orifice therein, the body being locked to the syringe mount at the generally circular exterior, and a plunger axially slidable in the body and in sealable contact with the body, the plunger having a coupling thereon in coupling engagement with the ram of the injector; then:partially rotating the syringe on its axis relative to the injector to thereby unlock the body of the syringe at the generally circular exterior thereof from the mount of the injector and to simultaneously uncouple the plunger from the ram; and then:translating the syringe from the injector by generally forward axial movement of the syringe to remove the syringe from the injector.