FR2653668A1 - Syringe for medical use which is provided with complete protection of the needle before and after use and with a system which ensures that it can be used only once - Google Patents

Syringe for medical use which is provided with complete protection of the needle before and after use and with a system which ensures that it can be used only once Download PDF

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Publication number
FR2653668A1
FR2653668A1 FR8914625A FR8914625A FR2653668A1 FR 2653668 A1 FR2653668 A1 FR 2653668A1 FR 8914625 A FR8914625 A FR 8914625A FR 8914625 A FR8914625 A FR 8914625A FR 2653668 A1 FR2653668 A1 FR 2653668A1
Authority
FR
France
Prior art keywords
syringe
needle
rods
ensures
separation
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Withdrawn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
FR8914625A
Other languages
French (fr)
Inventor
Gharbi Ahmed
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GHARDI AHMED
Original Assignee
GHARDI AHMED
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 GHARDI AHMED filed Critical GHARDI AHMED
Priority to FR8914625A priority Critical patent/FR2653668A1/en
Publication of FR2653668A1 publication Critical patent/FR2653668A1/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Withdrawn legal-status Critical Current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
    • A61M5/50—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
    • A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
    • 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
    • A61M5/178—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
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3228—Constructional features thereof, e.g. to improve manipulation or functioning the needle being retracted by a member protruding laterally through a slot in the barrel, e.g. double-ended needles

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (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

The invention relates to a disposable syringe which is provided with a device for protecting the needle and a means for storing certain medicaments. It consists of a body (1) which surrounds a needle (2) and which protects it before and after use and at the time of storing the medicaments in the chamber (4). A plunger (5) ensures that the suction of the liquid takes place only before separation of the two rods (6) and (7), and ensures that injection takes place only after separation of the two rods (6) and (7). Two studs (10) provide for the separation of the two rods (6) and (7), two other studs (14) blocking the barrel (8) in position. The body (1) has two grooves (12) for the functioning of the two pushers (9). According to the invention, the syringe is intended to be used only once and to inject and store a given substance with a complete protection of the needle.

Description

La présente invention se rapporte à des appareils médicaux, et plus particuliérement à une seringue à usage médical, munie d'une protection parfaite de l'aiguille. The present invention relates to medical devices, and more particularly to a syringe for medical use, provided with perfect protection of the needle.

Comme cela est connu, on peut considérer que les seringues jetables sont actuellement d'un emploi quasi-général dans le monde entier, compte tenu des avantages obtenus sur le plan hygiénique et pratique. As is known, it can be considered that disposable syringes are currently of almost general use worldwide, taking into account the advantages obtained from the hygienic and practical points of view.

Du point de vue foncitonnel et technique, des résultats considérables ont été obtenus. Toutefois, du point de vue sécurité, le problème est là.  From a functional and technical point of view, considerable results have been obtained. However, from a security point of view, the problem is there.

Par exemple, dans les hôpitaux, il suffit d'une fausse manoeuvre de. la seringue, on est piqué par l'aiguille ; ce n'est pas toujours le seul cas, il suffit d'un malade à risque de contamination, et c'est le drame ; une piqûre pareille par l'aiguille d'injection représente un dangereux vecteur de maladies infectieuses, cela peut provoquer la transmission d'une infection, infection pouvant prendre une gravité particulière, comme le cas du SIDA, de l'hépatite virale, etc...For example, in hospitals, all it takes is one false move. the syringe, one is pricked by the needle; it is not always the only case, it suffices for a sick person at risk of contamination, and it is a tragedy; such a puncture by the injection needle represents a dangerous vector of infectious diseases, it can cause the transmission of an infection, infection which can take a particular gravity, like the case of AIDS, viral hepatitis, etc. .

Un danger plus grave encore est provoqué par les seringues jetables régulièrement utilisées par les familles et qui sont jetées dans les décharges. Dans ce cas, en effet, elles représentent non seulement un risque pour les membres de la famille, mais également pour ceux préposés au transport et à l'évacuation de ces déchets. Par exemple, les seringues usagées peuvent perforer les sacs en plastique employez pour le recueil des déchets lors du transport jusqu'au conteneur à ordures. An even more serious danger is caused by the disposable syringes regularly used by families and which are thrown in landfills. In this case, in fact, they represent not only a risk for family members, but also for those responsible for transporting and disposing of this waste. For example, used syringes can puncture plastic bags used for collecting waste during transport to the garbage container.

L'objet de la présente invention consiste à supprimer tous les inconvénients qui peuvent nuire à la sécurité de l'homme, restant à un coût de revient bon marché de ladite seringue. The object of the present invention is to eliminate all the drawbacks which may harm human security, remaining at an inexpensive cost price of said syringe.

Selon l'invention, il est prévu une seringue du type jetable et d'une sécurité totale, avec possibilité de commercialisation, d'une part, grâce à un système de fonctionnement qui la rend jetable à cent pour cent après une seule et unique injection, avec certains médicaments qui les emmagasine pour injection directe . d'autre part, grâce à son corps qui englobe l'aiguille et qui lui donne une sécurité totale avant et après utilisation.  According to the invention, there is provided a syringe of the disposable type and of total safety, with the possibility of marketing, on the one hand, thanks to an operating system which makes it disposable one hundred percent after a single injection. , with certain drugs that store them for direct injection. on the other hand, thanks to its body which includes the needle and which gives it total safety before and after use.

De plus, elle peut servir à conserver sans risques certains médicaments, etc... suivant les explication à venir. In addition, it can be used to safely store certain medications, etc., depending on the explanation to come.

De façon plus précise, l'objet de la présente invention est consitué par une seringue à usage médical, du type jetable, comportant un piston avec un nouveau système, un cylindre, une aiguille et un corps qui englobe l'ensemble des éléments. More specifically, the object of the present invention is constituted by a syringe for medical use, of the disposable type, comprising a plunger with a new system, a cylinder, a needle and a body which includes all of the elements.

On va maintenant décrire l'invention plus en détail en référence aux dessins d'accompagnement qui montrent les modes de réalisation préférés de l'invention. Ces modes de réalisation ne sont donnés qu'à titre d'exemple et ne doivent nullement être interprétés comme limitant la portée des revendications ci-annexees. Dans ces dessins
- La figure 1, planche 1, est une coupe longitudinale à l'échelle agrandie d'une seringue selon l'invention, montrant la seringue telle qu'elle sera dans le commerce, et avant toute manoeuvre de remplissage ou injection.The invention will now be described in more detail with reference to the accompanying drawings which show the preferred embodiments of the invention. These embodiments are given by way of example only and should in no way be interpreted as limiting the scope of the claims appended hereto. In these drawings
- Figure 1, plate 1, is a longitudinal section on an enlarged scale of a syringe according to the invention, showing the syringe as it will be commercially, and before any filling or injection operation.

- La figure 2 est une coupe similaire à celle de la figure 1, montrant les deux portions de tiges porte-piston qui sont en position d'injection. - Figure 2 is a section similar to that of Figure 1, showing the two portions of piston rods which are in the injection position.

- La figure 3 montre une coupe du cylindre et ses deux ergots arrêt piston. - Figure 3 shows a section of the cylinder and its two piston stop pins.

- La figure 4 est une coupe similaire à celle des figures 1 et 2. Elle montre une entaille, dont les guides du cylindre coulissent. - Figure 4 is a section similar to that of Figures 1 and 2. It shows a notch, the cylinder guides slide.

Dans la figure 1, planche 1, le corps d'une seringue porte la référence numérique 1. Il s'agit par exemple d'une seringue jetable munie d'une chambre 4, dans laquelle le médicament à injecter est aspire au moyen du piston 5. La chambre 4 est apte pour stocker des médicaments à injecter plus tard. Les tiges 6 et 7 assurent la seule et unique injection de la présente seringue. Cela dit : grâce aux deux poussoirs 9 qui coulissent dans la rainure 12, planche 2, figure 4, le cylindre 8 se déplace avec le piston 5 à environ cinq millimètres du corps 1, l'aiguille 2 sort du corps 1 de même valeur par le trou du guidage 13, planche 2, figure 4.A ce moment-là, l'opération du remplissage est à effectuer, toujours de la même manière, en faisant coulisser les deux poussoirs 9 par la rainure 12 du corps 1 vers le haut ; au fur et à mesure le remplissage s'effectue l'aiguille 2 sort du corps 1 sans que le piston 5 ne bouge ni les deux tyges 6 et 7, jusqu'à ce que les deux ergots 10, planches 1 et 2, figures 1 et 3 soient en contact avec le piston 5. Jusqu'à maintenant, l'injection est impossible grâce au système de la tige 6 qui reçoit la tige 7 jusqu au contact avec le piston 5. Cela dit, le produit restera dans la chambre 4 et tout le bloc rentre dans le corps 1. C'est l'opération stockage du produit dans la seringue.Pour que ltoperation d'injection se fasse, une fois que les deux ergots 10 sont en contact avec le bas du piston 5, il faut continuer la poussée des deux poussoirs 9 jusqu'à ce que se libèrent les deux tiges 6 et 7 l'une de l'autre. In FIG. 1, plate 1, the body of a syringe bears the reference numeral 1. It is for example a disposable syringe provided with a chamber 4, in which the medicament to be injected is aspirated by means of the piston 5. The chamber 4 is suitable for storing drugs to be injected later. The rods 6 and 7 provide the one and only injection of the present syringe. That said: thanks to the two pushers 9 which slide in the groove 12, plate 2, FIG. 4, the cylinder 8 moves with the piston 5 about five millimeters from the body 1, the needle 2 leaves the body 1 of the same value by the guide hole 13, plate 2, Figure 4. At this time, the filling operation is to be carried out, always in the same way, by sliding the two pushers 9 through the groove 12 of the body 1 upwards ; as the filling is carried out the needle 2 leaves the body 1 without the piston 5 moving neither the two rods 6 and 7, until the two pins 10, boards 1 and 2, Figures 1 and 3 are in contact with the piston 5. Until now, the injection is impossible thanks to the system of the rod 6 which receives the rod 7 until the contact with the piston 5. That said, the product will remain in the chamber 4 and the whole block enters the body 1. This is the operation of storing the product in the syringe. In order for the injection to take place, once the two pins 10 are in contact with the bottom of the piston 5, it continue pushing the two pushers 9 until the two rods 6 and 7 are released from each other.

A ce moment, l'opération d'injection est prête, en faisant le mouvement inverse avec les deux poussoirs 9. Le liquide s'injecte et l'aiguille 5 rentre au fur et à mesure dans le corps 1 par le trou du guidage 13. Grâce aux deux tiges 6 et 7 du porte-piston 5 celui-ci devient libre et suit le cylindre 8 après séparation des deux tiges 6 et 7. A ce moment le piston 5 assure simplement et uniquement l'injection du médicament jsuqu'au contact au fond du cylindre 8 grâce à la tige 7 qui pousse la tige 6 mais ne la ramène pas. Une fois que le piston 5 est en fin de course dans la chambre 4 du cylindre 8, il devient libre et il n'assure aucun fonctionnement, ce qui donne la vraie qualification à l'invention, une seringue jetable à cent pour cent et une seule et unique utilisation. At this moment, the injection operation is ready, making the reverse movement with the two pushers 9. The liquid is injected and the needle 5 gradually returns to the body 1 through the guide hole 13 Thanks to the two rods 6 and 7 of the piston holder 5 it becomes free and follows the cylinder 8 after separation of the two rods 6 and 7. At this time the piston 5 simply and only ensures the injection of the drug until the contact at the bottom of the cylinder 8 thanks to the rod 7 which pushes the rod 6 but does not bring it back. Once the piston 5 is at the end of its travel in the chamber 4 of the cylinder 8, it becomes free and it does not provide any operation, which gives the true qualification to the invention, a 100% disposable syringe and a one and only use.

Quant à la sécurité en fin de course d'injection, un système de pression entre le cylindre 8 et les deux ergots 14 assure un coinçage parfait qui empêche la sortie de l'aiguille 2 du corps 1 et elle devient intouchable après utilisation, comme dans position avant utilisation. As for safety at the end of the injection stroke, a pressure system between the cylinder 8 and the two pins 14 ensures perfect wedging which prevents the needle 2 from coming out of the body 1 and it becomes untouchable after use, as in position before use.

La présente invention a été décrite et illustrée en référence à des modes de réalisation préférés de celle-ci. The present invention has been described and illustrated with reference to preferred embodiments thereof.

Toutefois, il est évident que des modifications de structure peuvent être apportées à celle-ci sans sortir de la portée des revendications ci-annexées.  However, it is obvious that structural modifications can be made thereto without departing from the scope of the appended claims.

Claims (5)

REVENDICATIONS 1/ Seringue à usage médical, du type jetable comprenant un piston (5), un cylindre (8), une aiguille (2), un corps (1), des tiges (6) et (7), le porte-piston (5) à des moyens de fonctionnement coulissants, la tige (7) rentre dans la tige (6), ainsi les deux tiges se libèrent au moment de l'injection, d'un corps (1) protege-aiguille et qui guide les deux poussoirs (9), deux ergots (10) assurant la séparation des deux tiges (6) et (7), deux ergots (14) pour le blocage du cylindre. 1 / Syringe for medical use, of the disposable type comprising a plunger (5), a cylinder (8), a needle (2), a body (1), rods (6) and (7), the plunger holder ( 5) with sliding operating means, the rod (7) enters the rod (6), thus the two rods are released at the time of injection, from a body (1) needle guard and which guides the two pushers (9), two pins (10) ensuring the separation of the two rods (6) and (7), two pins (14) for blocking the cylinder. 2/ Seringue selon la revendication 1 caractérisée en ce que les tiges (6) et (7), porte-piston (5), soit en deux parties, mâle pour le (7), femelle pour le (6), avec une fente (15) au milieu. 2 / syringe according to claim 1 characterized in that the rods (6) and (7), piston holder (5), either in two parts, male for the (7), female for the (6), with a slot (15) in the middle. 3/ Seringue selon les revendications 1 et 2, en ce que le corps (1) qui enveloppe la seringue porte deux rainures (12), un trou (13) de guidage de l'aiguille (2). 3 / syringe according to claims 1 and 2, in that the body (1) which envelops the syringe carries two grooves (12), a hole (13) for guiding the needle (2). 4/ Seringue selon les revendications 1, 2 et 3 en ce qu'il y a deux ergots (10), arrêt piston (5) pour la séparation des deux tiges (6) et (7). 4 / syringe according to claims 1, 2 and 3 in that there are two pins (10), piston stop (5) for the separation of the two rods (6) and (7). 5/ Seringue selon la revendication 4 en ce qui qu'il y a deux ergots (14) pour tenir le cylindre (8) empêchant toute sortie de l'aiguille (2) du corps (1).  5 / A syringe according to claim 4 in that there are two pins (14) for holding the cylinder (8) preventing any exit of the needle (2) from the body (1).
FR8914625A 1989-11-02 1989-11-02 Syringe for medical use which is provided with complete protection of the needle before and after use and with a system which ensures that it can be used only once Withdrawn FR2653668A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8914625A FR2653668A1 (en) 1989-11-02 1989-11-02 Syringe for medical use which is provided with complete protection of the needle before and after use and with a system which ensures that it can be used only once

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8914625A FR2653668A1 (en) 1989-11-02 1989-11-02 Syringe for medical use which is provided with complete protection of the needle before and after use and with a system which ensures that it can be used only once

Publications (1)

Publication Number Publication Date
FR2653668A1 true FR2653668A1 (en) 1991-05-03

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FR8914625A Withdrawn FR2653668A1 (en) 1989-11-02 1989-11-02 Syringe for medical use which is provided with complete protection of the needle before and after use and with a system which ensures that it can be used only once

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686242A1 (en) * 1992-01-22 1993-07-23 Barbier Georges BLOOD SAMPLING DEVICE FOR AIR VACUUM TUBE.
FR2689765A1 (en) * 1992-04-10 1993-10-15 Vounatsos Constantin Plain injection syringe.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686242A1 (en) * 1992-01-22 1993-07-23 Barbier Georges BLOOD SAMPLING DEVICE FOR AIR VACUUM TUBE.
EP0553024A1 (en) * 1992-01-22 1993-07-28 Georges Albert Eugène Barbier Blood sampling device for a vacuum evacuated sample-tube
US5337756A (en) * 1992-01-22 1994-08-16 Sylvain Thuaudet Blood sampling device with a vacuum tube
FR2689765A1 (en) * 1992-04-10 1993-10-15 Vounatsos Constantin Plain injection syringe.
WO1993020873A1 (en) * 1992-04-10 1993-10-28 Constantin Vounatsos Single-use syringe
US5531693A (en) * 1992-04-10 1996-07-02 Vounatsos; Constantin Single-use syringe

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