Patent ID: 8628495

Claim:
A power injector syringe assembly, comprising: a power injector syringe comprising a syringe barrel, a syringe flange, and a plunger, wherein said plunger is moveable relative to said syringe barrel and comprises a plunger head disposed within said syringe barrel; a separate coupling detachably connectable to a power injector syringe mount, wherein said coupling is of an integral construction and lacks any moving part, wherein said coupling comprises a first end and a second end that are spaced along a longitudinal axis that extends through a hollow interior of said coupling, wherein said power injector syringe extends from said second end of said coupling, wherein said coupling further comprises at least one mounting flange and a first coupling member that are each spaced from each of said first and second ends and that are each on an outer perimeter of said coupling, wherein said at least one mounting flange comprises a perimeter surface that slopes outwardly relative to said longitudinal axis proceeding in a direction of said power injector syringe, and wherein said coupling comprises a syringe flange seat that is located between said first end and said second end within said hollow interior and that extends inwardly toward said longitudinal axis from an interior wall of said coupling; and an annular retention ring disposed at said second end of said coupling, wherein said coupling is mounted to said power injector syringe using said retention ring, wherein said retention ring engages said syringe flange within said hollow interior of said coupling, wherein one end surface of said syringe flange of said power injector syringe is seated against said syringe flange seat within said hollow interior of said coupling, wherein an opposite end surface of said syringe flange is engaged by said retention ring within said hollow interior of said coupling, and wherein said retention ring occupies an entirety of an annular space between said syringe barrel and a corresponding portion of said interior wall of said coupling at said second end.