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Collapsible syringe for fluid delivery system

  • US 10,105,491 B2
  • Filed: 11/09/2015
  • Issued: 10/23/2018
  • Est. Priority Date: 04/20/2012
  • Status: Active Grant
First Claim
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1. A collapsible syringe for a fluid delivery system, the collapsible syringe comprising:

  • a distal end having a discharge port;

    a proximal end portion having a closed end wall configured for engagement with a piston element of an injector; and

    a compressible or deformable sidewall between the distal end and the proximal end portion,wherein the sidewall is sufficiently rigid to be self-supporting when placed on end and pliable enough to permit the closed end wall to invert into an interior of the collapsible syringe so that the sidewall folds inward against itself when an axial force is applied to the closed end wall,wherein the proximal end portion has a receiving end pocket configured for receiving a piston head of the piston element, andwherein the receiving end pocket has at least one internal structure configured for engaging at least one retractable retaining pin on the piston head.

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