IT1249952B - DISPOSABLE SAFETY SYRINGE - Google Patents

DISPOSABLE SAFETY SYRINGE

Info

Publication number
IT1249952B
IT1249952B ITTO910526A ITTO910526A IT1249952B IT 1249952 B IT1249952 B IT 1249952B IT TO910526 A ITTO910526 A IT TO910526A IT TO910526 A ITTO910526 A IT TO910526A IT 1249952 B IT1249952 B IT 1249952B
Authority
IT
Italy
Prior art keywords
piston
safety syringe
disposable safety
itself
support element
Prior art date
Application number
ITTO910526A
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 ITTO910526A priority Critical patent/IT1249952B/en
Publication of ITTO910526A0 publication Critical patent/ITTO910526A0/en
Priority to AU23697/92A priority patent/AU2369792A/en
Priority to PCT/IT1992/000072 priority patent/WO1993000950A1/en
Priority to CN92109192.3A priority patent/CN1070345A/en
Publication of ITTO910526A1 publication Critical patent/ITTO910526A1/en
Application granted granted Critical
Publication of IT1249952B publication Critical patent/IT1249952B/en

Links

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    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • 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
    • 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
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3235—Fully 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
    • 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
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3241—Needle retraction energy is accumulated inside of a hollow plunger rod

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

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) suitable for containing a therapeutic or physiological liquid, a hollow needle (18) fixed to a support element (15) connected to the body (31) in a releasable way and loaded by a spring (40) towards the inside of the body (31) itself, a piston (44) sliding in the aforementioned 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) of relative restraint between the piston (44) and the body (31) active at least along an end portion of the compression stroke of the piston (44) to prevent movement of the plunger (44) itself in the direction corresponding to the suction of the liquid.

ITTO910526A 1991-07-05 1991-07-05 DISPOSABLE SAFETY SYRINGE IT1249952B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ITTO910526A 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
CN92109192.3A CN1070345A (en) 1991-07-05 1992-07-05 Disposable safety injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO910526A IT1249952B (en) 1991-07-05 1991-07-05 DISPOSABLE SAFETY SYRINGE

Publications (3)

Publication Number Publication Date
ITTO910526A0 ITTO910526A0 (en) 1991-07-05
ITTO910526A1 ITTO910526A1 (en) 1993-01-05
IT1249952B true IT1249952B (en) 1995-03-30

Family

ID=11409471

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910526A 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 RETROJECTABLE SYRINGE NEEDLE
US6840291B2 (en) * 1999-10-15 2005-01-11 Becton Dickinson And Company Attachment for a medical device
EP1868669B1 (en) * 2005-04-15 2016-10-19 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 hypodermic syringe
US5017187A (en) * 1990-05-04 1991-05-21 Sullivan Robert J Self retracting hypodermic syringe

Also Published As

Publication number Publication date
ITTO910526A1 (en) 1993-01-05
AU2369792A (en) 1993-02-11
CN1070345A (en) 1993-03-31
ITTO910526A0 (en) 1991-07-05
WO1993000950A1 (en) 1993-01-21

Similar Documents

Publication Publication Date Title
ES2051464T3 (en) AUTO INJECTOR WITH CLOSING CAP.
ES2139666T3 (en) REUSABLE PHARMACEUTICAL DISPENSER WITH END OF LIMIT SWITCH.
ATE115870T1 (en) DISPOSABLE SYRINGE.
SE7704331L (en) NON-REUTILLIBLE CAMPING SERVICE, PRE-EMPLOYMENT OF A MEDICAL SUBSTANCE, PREPARED FOR EMPLOYEES
ES2109891A1 (en) Disposable syringe with two variable volume chambers
ES2029083T3 (en) DISPOSABLE SAFETY SYRINGE WITH A HYPODERMIC NEEDLE.
ATE95708T1 (en) DISPOSABLE SYRINGE.
RU95105597A (en) Device for injection of infinitely varying doses of liquid medicinal drug
EP0208975A3 (en) Syringe for producing vacuum-controlled suction
IT1253104B (en) DISPOSABLE SYRINGE
DE3463614D1 (en) Infusion pump apparatus with a disposable syringe
IT1249952B (en) DISPOSABLE SAFETY SYRINGE
IT1251132B (en) DISPOSABLE SYRINGE WITH SAFETY DEVICE FOR DISPOSABLE SYRINGE, TO PREVENT REPEATED USE
EP0329358A3 (en) Disposable syringe
ES2057550T3 (en) DISPOSABLE HYPODERMIC SYRINGE.
DE60017116D1 (en) SAFETY DISPOSABLE SYRINGE
IT1265714B1 (en) SYRINGE FOR MEDICAL USE WITH AUTOMATIC RETRACTABLE NEEDLE, NOT REUSABLE.
PT1231962E (en) SYRINGE WITH RETRACTABLE NEEDLE
SU1674804A1 (en) Blood intake syringe
RU92008201A (en) DISPOSABLE SYRINGE
IT1224566B (en) Hypodermic syringe
TH9871EX (en) Syringe
DK219786A (en) SYRINGE
IT1243130B (en) Disposable syringe for medical use
ES2010237A6 (en) Single-use hypodermic syringe

Legal Events

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

Effective date: 19950727