IT1249952B - Disposable safety syringe - Google Patents

Disposable safety syringe

Info

Publication number
IT1249952B
IT1249952B ITTO910526A IT1249952B IT 1249952 B IT1249952 B IT 1249952B IT TO910526 A ITTO910526 A IT TO910526A IT 1249952 B IT1249952 B IT 1249952B
Authority
IT
Italy
Prior art keywords
body
plunger
safety syringe
cavity
itself
Prior art date
Application number
Other languages
Italian (it)
Inventor
Mauro Ghigo
Marco Ghigo
Original Assignee
Mauro Ghigo
Marco Ghigo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mauro Ghigo, Marco Ghigo filed Critical Mauro Ghigo
Priority to ITTO910526 priority Critical patent/IT1249952B/en
Publication of ITTO910526D0 publication Critical patent/ITTO910526D0/en
Publication of ITTO910526A1 publication Critical patent/ITTO910526A1/en
Application granted granted Critical
Publication of IT1249952B publication Critical patent/IT1249952B/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50Devices 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
    • A61M5/5013Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3235Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user triggered by radial deflection of the anchoring parts between needle mount and syringe barrel or needle housing, e.g. spreading of needle mount retaining hooks having slanted surfaces by engagement with correspondingly shaped surfaces on the piston at the end of an injection stroke
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3241Needle retraction energy is accumulated inside of a hollow plunger rod

Abstract

Siringa monouso di sicurezza comprendente un corpo tubolare (31) delimitante una cavità (23) atta a contenere un liquido terapeutico o fisiologico, un ago (18) cavo fissato ad un elemento di supporto (15) collegato al corpo (31) in modo rilasciabile e caricato da una molla (40) verso l'interno del corpo (31) stesso, uno stantuffo (44) scorrevole nella citata cavità (23) ed atto a sbloccare il collegamento dell'elemento di supporto (15) con il corpo (31) in una propria posizione di fondo corsa, e mezzi (49, 51) di vincolo relativo tra lo stantuffo (44) ed il corpo (31) attivi almeno lungo un tratto terminale della corsa di compressione dello stantuffo (44) per impedire il moto dello stantuffo (44) stesso nel senso corrispondente all'aspirazione del liquido. disposable safety syringe comprising a tubular body (31) delimiting a cavity (23) adapted to contain a therapeutic or physiological fluid, a needle (18) cable attached to a support element (15) connected to the body (31) in a releasable manner and loaded by a spring (40) towards the inside of the body (31) itself, a plunger (44) sliding in said cavity (23) and adapted to unlock the connection of the support element (15) with the body (31 ) in its own end of stroke position, and means (49, 51) for securing relative displacement between the plunger (44) and the body (31) active at least along an end portion of the piston compression stroke (44) to prevent the motion of the plunger (44) itself in the direction corresponding to the intake of liquid.
ITTO910526 1991-07-05 1991-07-05 Disposable safety syringe IT1249952B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITTO910526 IT1249952B (en) 1991-07-05 1991-07-05 Disposable safety syringe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITTO910526 IT1249952B (en) 1991-07-05 1991-07-05 Disposable safety syringe
AU23697/92A AU2369792A (en) 1991-07-05 1992-07-02 Disposable safety syringe
PCT/IT1992/000072 WO1993000950A1 (en) 1991-07-05 1992-07-02 Disposable safety syringe
CN 92109192 CN1070345A (en) 1991-07-05 1992-07-05 Disposable safety syringe

Publications (3)

Publication Number Publication Date
ITTO910526D0 ITTO910526D0 (en) 1991-07-05
ITTO910526A1 ITTO910526A1 (en) 1993-01-06
IT1249952B true IT1249952B (en) 1995-03-30

Family

ID=11409471

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910526 IT1249952B (en) 1991-07-05 1991-07-05 Disposable safety syringe

Country Status (4)

Country Link
CN (1) CN1070345A (en)
AU (1) AU2369792A (en)
IT (1) IT1249952B (en)
WO (1) WO1993000950A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338311A (en) * 1993-08-23 1994-08-16 Mahurkar Sakharam D Hypodermic needle assembly
FR2724114B1 (en) * 1994-09-01 1996-12-20 Hachemi Abdelghani retro-ejectable syringe needle
US6840291B2 (en) 1999-10-15 2005-01-11 Becton Dickinson And Company Attachment for a medical device
CA2604322C (en) 2005-04-15 2016-05-24 Unitract Syringe Pty Ltd Controlled retraction syringe and plunger therefor
JP4925716B2 (en) 2006-04-28 2012-05-09 メディキット株式会社 Indwelling needle assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203047B (en) * 1987-02-27 1991-01-30 Gilbert Henry Banks Single-use syringe
US4838869A (en) * 1987-08-29 1989-06-13 Allard Edward F Retractable needle syringe
NO890027L (en) * 1989-01-04 1990-07-05 Odd Gerhard Mueller Injeksjonssproeyte.
ES2011414A6 (en) * 1989-01-19 1990-01-01 Caralt Batlle Jaime Single-use syringe
US5017187A (en) * 1990-05-04 1991-05-21 Sullivan Robert J Self retracting hypodermic syringe

Also Published As

Publication number Publication date
AU2369792A (en) 1993-02-11
ITTO910526D0 (en) 1991-07-05
WO1993000950A1 (en) 1993-01-21
CN1070345A (en) 1993-03-31
ITTO910526A1 (en) 1993-01-06

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of prs-date), data collected since 19931001

Effective date: 19950727