FR2654346A1 - Syringe which can be used only once and which has an incorporated and sliding system for protecting the needle - Google Patents

Syringe which can be used only once and which has an incorporated and sliding system for protecting the needle Download PDF

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Publication number
FR2654346A1
FR2654346A1 FR8914951A FR8914951A FR2654346A1 FR 2654346 A1 FR2654346 A1 FR 2654346A1 FR 8914951 A FR8914951 A FR 8914951A FR 8914951 A FR8914951 A FR 8914951A FR 2654346 A1 FR2654346 A1 FR 2654346A1
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France
Prior art keywords
cap
needle
syringe
triggering
ensured
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
FR8914951A
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French (fr)
Inventor
Laisne Maurice
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Individual
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Individual
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 Individual filed Critical Individual
Priority to FR8914951A priority Critical patent/FR2654346A1/en
Publication of FR2654346A1 publication Critical patent/FR2654346A1/en
Withdrawn legal-status Critical Current

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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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve 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
    • A61M5/178—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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M2005/342—Off-center needles, i.e. needle connections not being coaxial with the longitudinal symmetry axis of syringe barrel
    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3257—Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means

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

Abstract

The invention relates to a syringe which, after it has been used, is made harmless by means of complete protection of the needle. It consists of a protective cap (1) housed in the double wall (2) of the body of the syringe, the ejection of the cap after use being ensured by a spring (3), and its rotation by the coil (17), the triggering by the lever (7). The invention is intended in particular for use in human and veterinary medicine.

Description

La présente invention concerne une seringue munie d'un système de protection qui se dispose autour de l'aiguille après usage et évite ainsi toute contamination secondaire possible par piqure accidentelle. The present invention relates to a syringe provided with a protection system which is arranged around the needle after use and thus avoids any possible secondary contamination by accidental puncture.

Cette invention permet d'éviter les contaminations acciden -telles. Elle comporte selon une première caractéristique un corps de seringue à double paroi, entre lesquelles se loge un cylindre que sera propulse en avant après usage et viendra couvrir l'aiguille qui reste en place. This invention makes it possible to avoid accidental contamination. According to a first characteristic, it has a double-walled syringe body, between which is housed a cylinder which will be propelled forward after use and will cover the needle which remains in place.

Ce cylindre est germé par un disque qui est lui-même percé d'un orifice et livre passage à une aiguille standard. This cylinder is germinated by a disc which is itself pierced with an orifice and gives way to a standard needle.

Avant usage, le cylindre est complètement encastré dans le corps de la seringue. Before use, the cylinder is completely embedded in the body of the syringe.

Après propulsion, il effectue non seulement une translation, mais également une rotation qui amène l'orifice occupé au départ par l'aiguille, à 1800 de sa position de départ grâce à une spiraie gravée sur la périphérie du cylindre. After propulsion, it performs not only a translation, but also a rotation which brings the orifice occupied at the start by the needle, to 1800 from its starting position thanks to a spiral engraved on the periphery of the cylinder.

De plus, une petite crémaillère empêche un retour en arrière l'aiguille devient protégée et la seringue est alors inutili -sable. In addition, a small rack prevents backtracking, the needle becomes protected and the syringe is then useless.

Cette nouvelle seringue qui assure après usage la protection de l'aiguille quelqu'en soit l'utilisateur, permet de la rendre inoffensive après utilisation en toute circonstance, ce qui n'est pas le cas actuellement pour les seringues commercialisées et utilisées par le corps médical ou par les toxicomanes. This new syringe which protects the needle after use regardless of the user, makes it harmless after use in all circumstances, which is not currently the case for syringes sold and used by the body medical or addicted.

Cette invention permet d'éviter les contaminations accidentelles. Elle comporte selon une première caractéristique, un corps de seringue à double-paroi où se loge un capuchon protecteur télescopique fermé à son extrémité distale mais présentant un orifice permettant l'adaptation d'aiguille standard. This invention avoids accidental contamination. According to a first characteristic, it comprises a double-walled syringe body in which is housed a telescopic protective cap closed at its distal end but having an orifice allowing the adaptation of standard needle.

Après l'injection, ce capuchon sera propulsé en avant et viendra recouvrir l'aiguille qui reste fixe. After the injection, this cap will be propelled forward and will cover the needle which remains fixed.

Avant usage, le capuchon est complètement encastré dans le corps de la seringue. Après usage, il effectue d'abord une translation et en fin de course, une rotation de 1800 grâce à une spirale gravée sur îè cylindre mobile de sorte que 11 orifice se trouve diamétralement opposé au biseau de l'aiguille. Before use, the cap is completely embedded in the body of the syringe. After use, it first carries out a translation and, at the end of the stroke, a rotation of 1800 thanks to a spiral engraved on the movable cylinder so that the orifice is diametrically opposite the bevel of the needle.

De plus, un mécanisme auto-bloquant empêche le retour en arrière du capuchon. L'aiguille est alors protégée et la seringue devient inutilisable. In addition, a self-locking mechanism prevents the cap from going back. The needle is then protected and the syringe becomes unusable.

DIVERSES MODALITES SONT ENVISAGEES
I. Pour la propulsion du capuchon
a) soit mécanique avec utilisation d'un ressort hélicoldal exerçant une détente et logé dans le fond de la double-paroi
b) soit une propulsion gazeuse, soit grâce à une microcapsule, soit par tout autre moyen capable d'entraver une libéra -tion très rapide du gaz.VARIOUS TERMS ARE CONSIDERED
I. For the propulsion of the cap
a) either mechanical with the use of a helical spring exerting a rebound and housed in the bottom of the double wall
b) either a gas propulsion, either by means of a microcapsule, or by any other means capable of hindering a very rapid liberation of the gas.

Il. Pour le déclenchement
a) manuel grâce à un levier muni d'un ergot qui traverse la paroi externe et le capuchon protecteur doté d'un dispositif de sécurité afin d'éviter son déclenchement accidentel (tel que point de soudure facile à rompre). Ce dispositif premet de libérer le ressort.He. For triggering
a) manual thanks to a lever provided with a lug which crosses the external wall and the protective cap provided with a safety device in order to avoid its accidental triggering (such as welding point easy to break). This device premet to release the spring.

b) automatique réalisé grâce à deux éléments * d'une part la tête du piston subdivisé en une partie centrale rigide et dure munie en son centre d'un pointeau et en périphérie une partie souple et compressible assurant l'étanchéité et qui présente une cavité centrale où se loge le pointeau. La profon -deur de cette cavité est légèrement supérieure à la hauteur du pointeau. b) automatic produced by two elements * on the one hand the piston head subdivided into a rigid and hard central part provided at its center with a needle and at the periphery a flexible and compressible part ensuring sealing and which has a cavity central where the needle is housed. The depth of this cavity is slightly greater than the height of the needle.

* d'autre part le fond du corps de la seringue présente en vis à vis du pointeau une très petite zone détachable sur laquelle vient se fixer un crochet qui traverse et maintient le capuchon protecteur.* on the other hand the bottom of the body of the syringe has opposite the needle a very small detachable area on which is fixed a hook which passes through and maintains the protective cap.

La mise en mouvement du mécanisme de sécurité est assurée de la façon suivante : au terme de la procédure classique d'injection, le pointeau, sous l'effet d'une pression ferme de l'utilisateur percute le crochet et le détache du corps de la seringue, libérant
ainsi le capuchon protecteur.The safety mechanism is set in motion as follows: at the end of the conventional injection procedure, the needle, under the effect of firm pressure from the user, strikes the hook and detaches it from the body of the the syringe, releasing
thus the protective cap.

La sensibilité de l'automatisme est fonction
- d'une part de l'épaisseur et de la compressibilité de la partie
souple entourant le pointeau.The sensitivity of the automation is a function
- on the one hand the thickness and compressibility of the part
flexible surrounding the needle.

- et d'autre part de la résistance à la rupture de la zone portant
le crochet.- and on the other hand the breaking strength of the bearing zone
the hook.

c) le déclenchement de la propulsion gazeuse est réalisée
grâce à deux éléments :
- d'une part une micro-capsule logée au fond de la double-paroi
et surmontée par un pointeau lui-même fixé sur une paroi souple;
-d'autre part le piston est doté d'une couronne externe dont la
face dirigée vers l'aiguille présente un relief destiné à assu
-rer une pression sur le pointeau. La-tête du piston est consti
tuée d'une matière compressible assurant l'étanchéité ainsi que
l'amplitude du mouvement nécessaire au déclenchement du mécanisme.c) the triggering of the gas propulsion is carried out
thanks to two elements:
- on the one hand, a micro-capsule housed at the bottom of the double wall
and surmounted by a needle itself fixed on a flexible wall;
-on the other hand the piston is provided with an external crown whose
face directed towards the needle presents a relief intended to assu
-press the needle. The piston head is built
killed by a compressible material ensuring sealing as well as
the amplitude of the movement necessary to trigger the mechanism.

La mise en mouvement du mécanisme de sécurité est assuré de
la façon suivante : au terme de la procédure classique d'injection
la couronne dont est dotée le piston, sous l'effet de la pression
exercée par l'opérateur, propulse le pointeau qui perce la micro
capsule libérant ainsi le gaz propulseur qui repousse le capuchon
l'étanchéité étant assurée par un joint.The setting in motion of the safety mechanism is ensured
as follows: at the end of the conventional injection procedure
the crown fitted to the piston, under the effect of pressure
exercised by the operator, propels the needle that pierces the microphone
capsule thus releasing the propellant which repels the cap
sealing being ensured by a seal.

LES DESSINS ANNEXES ILLUSTRENT L'INVENTION :
FIG. I : représente en coupe le modèle propulsé par ressort et
à déclenchement manuel.THE ANNEXED DRAWINGS ILLUSTRATE THE INVENTION:
FIG. I: represents in section the model powered by spring and
with manual release.

FIG. Il : représente la même seringue après usage. FIG. It: represents the same syringe after use.

FIG. III : représente en coupe le modèle propulsé par ressort et
à déclenchement automatique
FIG. IV : représente en coupe le modèle à propulsion gazeuse.FIG. III: represents in section the model powered by spring and
automatic release
FIG. IV: represents in section the gas-propelled model.

En référence à ces dessins, le capuchon (1) est contenu dans la double-paroi (2). Il est propulsé soit par un ressort (3)
soit par la micro-capsule (4).With reference to these drawings, the cap (1) is contained in the double wall (2). It is propelled either by a spring (3)
either by the micro-capsule (4).

Un dispositif auto-bloquant tel qu'une crémaillère (5) avec
languette (6) empêche le retour du capuchon. A self-locking device such as a rack (5) with
tongue (6) prevents the cap from returning.

Le déclenchement est soit manuel par le levier (7) luimême ayant son système de sécurité (8), soit automatique grâce au pointeau (9) entouré par la zone dépressible (10) et répondant à la zone détachable (11) qui supporte le crochet (12)..  The release is either manual by the lever (7) itself having its security system (8), or automatic thanks to the needle (9) surrounded by the depressible zone (10) and responding to the detachable zone (11) which supports the hook (12) ..

Enfin, dans le cas de propulsion gazeuse, la couronne (13) propulse le pointeau (14) porté par la membrane (15) et le joint (16) et::assure l'étanchéité. Finally, in the case of gas propulsion, the crown (13) propels the needle (14) carried by the membrane (15) and the seal (16) and :: provides sealing.

La spirale (17) assure la rotation du capuchon en fin de trans -lation et place l'orifice (18) du fond du capuchon dans une po -sitiondiamétralement opposée à celle de l'aiguille((19).  The spiral (17) ensures the rotation of the cap at the end of trans-inflation and places the orifice (18) of the bottom of the cap in a position-diametrically opposite to that of the needle ((19).

Cette invention est applicable à toute les contenances nécessitées par la pratique médicale et vétérinaire.  This invention is applicable to all capacities required by medical and veterinary practice.

Claims (4)

REVENDICATIONS 1) dispositif de protection d'une aiguille de seringue à usage unique caractérisé en ce qu'il comporte un capuchon protecteur (1) télescopique disposé entre les deux parois (2) du corde de seringue et étant apte à prendre une première position escamotéedans le corp de la seringue (2) pendant l'injection et une deuxième position où le capuchon (1) recouvre totalement l'aiguille d'injection (19) le passage de la position (A) à la position (B) s'effectue par une mise en translation du capuchon s'achevant par une rotation de 180 O assurée par une spirale dessinée sur le capuchonl 1) device for protecting a disposable syringe needle, characterized in that it comprises a protective cap (1) telescopic disposed between the two walls (2) of the syringe cord and being able to assume a first retracted position in the body of the syringe (2) during the injection and a second position where the cap (1) completely covers the injection needle (19) the transition from position (A) to position (B) is effected by translation of the cap ending in a 180 ° rotation ensured by a spiral drawn on the cap Le moteur de ces mouvements étant soit un ressort (3) ou un fluide sous pression (4). The motor of these movements being either a spring (3) or a pressurized fluid (4). La position (B) du capuchon, étant irreversible par mise en jeu d'un système autobloquant (5) et (6). The position (B) of the cap, being irreversible by bringing into play a self-locking system (5) and (6). 2) Dispositif selon la revendication 1 caractérisé en ce que le déclenchement manuel est assuré par un levier (7) dont une extremité recourbée traverse la paroi externe du corps de la seringue (2) ainsi que le capuchon et le maintient dans la position (A).2) Device according to claim 1 characterized in that the manual triggering is ensured by a lever (7) of which a curved end passes through the external wall of the body of the syringe (2) as well as the cap and maintains it in the position (A ). Un système de blocage (8) évite son déclenchement accidentel, dans ce cas, la propulsion est assurée par un ressort. A blocking system (8) prevents its accidental triggering, in this case, the propulsion is ensured by a spring. 3) Dispositif selon la revendication 1 caractérisé en ce que le déclenchement est automatique grâce à la percussion d'un pointeau (9) sur une zone (11) facilement détachable et portant sur sa face externe un crochet (12) qui traverse le fond du capuchon et le maintient dans la position (A), l'opérateur appuie fortement sur le piston, le pointeau (9) percute la zone (11) et libère crochet et capuchon. Cette percussion est possible par écrasement de la tête de piston (10), ce mode de déclenchement s'applique à la propulsion par ressort.3) Device according to claim 1 characterized in that the triggering is automatic by the percussion of a needle (9) on an area (11) easily detachable and carrying on its external face a hook (12) which crosses the bottom of the cap and maintains it in position (A), the operator presses strongly on the piston, the needle (9) strikes the zone (11) and releases hook and cap. This percussion is possible by crushing the piston head (10), this triggering mode applies to spring propulsion. 4) Dispositif selon la revendication 1 caractérisé en ce que le déclenchement est automatique avec propulsion par fluide sous pression. Il comporte une capsule de fluide (4) logée dans le fond de la double paroi (2) du corps de la seringue, un pointeau (14) porté par une membrane souple (15) est au contact avec la capsule de fluide, le déclenchement du dispositif est assuré par une couronne (13) solidaire du piston (13) qui percute la membrane (15) et libère le fluide contenu dans la capsule (4).  4) Device according to claim 1 characterized in that the triggering is automatic with propulsion by pressurized fluid. It comprises a fluid capsule (4) housed in the bottom of the double wall (2) of the syringe body, a needle (14) carried by a flexible membrane (15) is in contact with the fluid capsule, triggering of the device is ensured by a crown (13) integral with the piston (13) which strikes the membrane (15) and releases the fluid contained in the capsule (4).
FR8914951A 1989-11-10 1989-11-10 Syringe which can be used only once and which has an incorporated and sliding system for protecting the needle Withdrawn FR2654346A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8914951A FR2654346A1 (en) 1989-11-10 1989-11-10 Syringe which can be used only once and which has an incorporated and sliding system for protecting the needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8914951A FR2654346A1 (en) 1989-11-10 1989-11-10 Syringe which can be used only once and which has an incorporated and sliding system for protecting the needle

Publications (1)

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FR2654346A1 true FR2654346A1 (en) 1991-05-17

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700959A1 (en) * 1993-02-02 1994-08-05 Creange Alain Syringe with incorporated needle protection
WO1995034335A1 (en) * 1994-06-10 1995-12-21 James Olson Arrangement in a hypodermic syringe
FR2801795A1 (en) * 1999-12-07 2001-06-08 Plastef Investissements SAFETY SUPPORT DEVICE FOR A SYRINGE AND ASSEMBLY OF SUCH A DEVICE AND A SYRINGE
WO2002085435A1 (en) * 2001-04-19 2002-10-31 Becton, Dickinson And Company Safety shield system for prefilled syringes
EP1605992A2 (en) * 2003-01-30 2005-12-21 Becton, Dickinson and Company Holder with safety shield for a drug delivery device
US7041085B2 (en) 1997-03-10 2006-05-09 Safety Syrines, Inc. Disposable self-shielding unit dose syringe guard
FR2881053A1 (en) * 2005-01-25 2006-07-28 Sedat Sa Syringe needle protecting device comprises a tubular body, an injection piston assembled in a sliding motion, protective support, a mobile needle cover and a deployment element
WO2007121505A1 (en) * 2006-04-24 2007-11-01 Analytica Limited A needle assembly
WO2009102612A1 (en) * 2008-02-15 2009-08-20 Becton, Dickinson And Company Safety pen needle assembly
US7850661B2 (en) 2002-02-11 2010-12-14 Sanofi-Aventis Needle sheathing device with flexible end-piece for syringe
US8372044B2 (en) 2005-05-20 2013-02-12 Safety Syringes, Inc. Syringe with needle guard injection device
GB2520080A (en) * 2013-11-11 2015-05-13 Poole Hospital Nhs Foundation Trust Apparatus for transferring fluid
EP4374895A1 (en) * 2022-11-22 2024-05-29 Becton Dickinson France Syringe assembly for use in medication delivery

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612051A (en) * 1968-07-24 1971-10-12 Raul Olvera Arce Hypodermic syringe applicating device
US3820541A (en) * 1972-09-11 1974-06-28 J Langan Shield for hypodermic syringe
US4723943A (en) * 1986-12-31 1988-02-09 Montana Deaconess Medical Center Sheathed syringe
DE8801853U1 (en) * 1987-02-13 1988-03-24 Minischetti, Michele, Rom/Roma Injection syringe for medical and dental use with retractable protection for the injection needle
US4752290A (en) * 1987-07-27 1988-06-21 Schramm James J Needle bearing medical device with three-position shield

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612051A (en) * 1968-07-24 1971-10-12 Raul Olvera Arce Hypodermic syringe applicating device
US3820541A (en) * 1972-09-11 1974-06-28 J Langan Shield for hypodermic syringe
US4723943A (en) * 1986-12-31 1988-02-09 Montana Deaconess Medical Center Sheathed syringe
DE8801853U1 (en) * 1987-02-13 1988-03-24 Minischetti, Michele, Rom/Roma Injection syringe for medical and dental use with retractable protection for the injection needle
US4752290A (en) * 1987-07-27 1988-06-21 Schramm James J Needle bearing medical device with three-position shield

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700959A1 (en) * 1993-02-02 1994-08-05 Creange Alain Syringe with incorporated needle protection
WO1995034335A1 (en) * 1994-06-10 1995-12-21 James Olson Arrangement in a hypodermic syringe
US7041085B2 (en) 1997-03-10 2006-05-09 Safety Syrines, Inc. Disposable self-shielding unit dose syringe guard
US8979794B2 (en) 1999-12-07 2015-03-17 Sanofi-Aventis Safety assembly for a syringe
US7963949B2 (en) 1999-12-07 2011-06-21 Sanofi-Aventis Safety assembly for a syringe
US8617105B2 (en) 1999-12-07 2013-12-31 Sanofi-Aventis Safety assembly for a syringe
WO2001041841A3 (en) * 1999-12-07 2001-12-06 Plastef Investissements Safety system for a syringe
US10071207B2 (en) 1999-12-07 2018-09-11 Sanofi Safety assembly for a syringe
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