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Front load pressure jacket system with syringe holder

  • US RE37,487 E1
  • Filed: 07/07/2000
  • Issued: 12/25/2001
  • Est. Priority Date: 08/25/1995
  • Status: Expired due to Term
First Claim
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1. Fluid injection apparatus for injecting fluid from a syringe including a rear end and an opening formed therein a front end having a syringe neck, and a plunger disposed in the syringe the fluid injection apparatus comprising:

  • an injector head having a housing and a front opening in said housing for connection to said rear end of said syringe, drive means extendible through said front opening and through said opening in said rear end of the syringe for imparting motive force to said syringe plunger; and

    a pressure jacket for holding the syringe to the injector head, the pressure jacket including;

    a jacket cylinder having an open front end for receiving the syringe, and a rear end coupled to the injector head;

    a first tie rod having a front end, and a rear end pivotally attached to said injector head;

    a second tie rod having a front end, and a rear end pivotally attached to said injector head;

    a front retaining plate joined to said front ends of said first and second tie rods, said retaining plate and said tie rods pivotable between a closed position for holding the syringe within said jacket cylinder and an open position to allow the insertion and removal of the syringe from said jacket cylinder.

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