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FLUID INJECTION APPARATUS HAVING ANTI-ROTATION ELEMENTS TO LIMIT SYRINGE PLUNGER ROTATION

  • US 20090216192A1
  • Filed: 05/08/2009
  • Published: 08/27/2009
  • Est. Priority Date: 12/20/2002
  • Status: Active Grant
First Claim
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1. A fluid injection system comprising:

  • an injector comprising a drive piston having a plunger engaging end;

    a syringe comprising a body and a plunger movably disposed within the body, the plunger having a proximal end adapted for engagement by the plunger engaging end of the drive piston; and

    an anti-rotation connection formed by complementary anti-rotation elements associated with the proximal end of the plunger and the plunger engaging end of the drive piston to limit rotation of the plunger within the syringe body.

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