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Ready to use syringe

  • US 4,713,062 A
  • Filed: 05/29/1986
  • Issued: 12/15/1987
  • Est. Priority Date: 05/29/1985
  • Status: Expired due to Fees
First Claim
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1. A ready to use syringe, said syringe comprising in combination a cylindrical shaped container for an injectable solution, said cylindrical shaped container also serving as a piston and being closed by a piston plug, said piston plug may be perforated by a point extending downwards from a small suction tube, said small suction tube being fixed to the outer casing of said syringe in correspondence with a head for recording to a guide cone of an administration needle, said point for perforating said piston plug being provided with means for securing the piston itself, preventing mutual detachment at the time of use, and allowing the visual control, by means of a slight suction resulting from the correct introduction of the administration needle into the tissue of a patient.

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