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AssigneeP&P Patents and Technologies S.R.L.
InventorsCarmelo Raffaele Cartiere, Giuseppe Profiti, Rosario Valles, Pantaleo Mauro
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The present invention relates to an innovative system which definitively prevents the re-use of syringes with retractable needles, allowing at the same time to fill the tank by means of a mechanical system installed inside the piston. The operation that aims at preventing the re-use of the device takes place through a mechanical system that prevents the return of the piston towards the initial position of aspiration and restricts, therefore, its action in a single direction and prevents the return of the plunger to the initial position of injection and therefore restricts its action in a single direction. Moreover a rotating mechanical transition system prevents the repositioning of the piston in the previously used position. The filling of the container, instead, takes place through the use of a system via a flexible cannula placed inside the piston.
A safety and filling system for retractable needle syringes, characterized by the presence of a barrel (101) provided, in its internal apical part, with a small tooth (102) and two notched fins (104 and 105) as well as a plunger (106) on whose external surface there is the presence of grooved guides in the shape of a “U” (107) and a double rack system (108 and 103) while inside it is equipped with a cavity (117) which, in the upper part it has a perforated head (111) on which a valve (112) is positioned and inside which a mechanical system is installed consisting of an interlocking housing (109) for a needle (114), a spring (116) and an accordion cannula (113).
Dependencies are inferred from the claim text.