Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/178—Syringes
  • A61M5/31—Details
  • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
  • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
  • A61M5/321—Means for protection against accidental injuries by used needles
  • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
  • A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
  • A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston

Definitions

• This innovation has as object a security syringe and more particularly a syringe provided with a mechanism which consents to avoid, after its normal use, the risk of infection, accidently or unvuntarily, by the needle.
• the above-mentioned fixing-coupling support can be disposed on the above-mentioned piston in an un coupled way, so that when the fixing with the inside wall has taken place, the piston can slid towards the inside of the cylinder, leaving in fixed position the whole coupling-support for fixing the needle, in this case, the piston is provided with external grooves which consent the sliding over the above-mentioned
• Figure 3 is a third sight in vertical section of the syringe according the innovation.
• the coupling between needle 4 and element 5 allows the needle itself to slid to the inside of the syringe.
• On the piston 2 is a packing-element 7, through which protudes a male element 8 which can inserts itself thrpugh the protusion 3 and is able to couple
• the protuberances 11 couple temselves with the openings of the cylinder 1 blocking the support- structure 9 - male element- 8 - needle 4 into the inside of cylinder 1 itself, so when the piston 2 removes up, the needle remains blocked in the inside of cylinder 1.

Applications Claiming Priority (1)

Publications (1)

Family

ID=11244658

Family Applications (1)

Country Status (2)

Cited By (4)

Citations (4)

• 1989
  • 1989-12-05 IT IT3607989U patent/IT219116Z2/it active IP Right Grant
• 1991
  • 1991-04-17 WO PCT/IT1991/000030 patent/WO1992018181A1/en unknown

Patent Citations (4)

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