FR2667249A1 - Syringe with incorporated and mobile needle - Google Patents

Syringe with incorporated and mobile needle Download PDF

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Publication number
FR2667249A1
FR2667249A1 FR9012055A FR9012055A FR2667249A1 FR 2667249 A1 FR2667249 A1 FR 2667249A1 FR 9012055 A FR9012055 A FR 9012055A FR 9012055 A FR9012055 A FR 9012055A FR 2667249 A1 FR2667249 A1 FR 2667249A1
Authority
FR
France
Prior art keywords
needle
syringe
spring
chamber
cartridge
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.)
Pending
Application number
FR9012055A
Other languages
French (fr)
Inventor
Varaine Jean-Pierre
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.)
VARAINE JEAN PIERRE
Original Assignee
VARAINE JEAN PIERRE
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 VARAINE JEAN PIERRE filed Critical VARAINE JEAN PIERRE
Priority to FR9012055A priority Critical patent/FR2667249A1/en
Publication of FR2667249A1 publication Critical patent/FR2667249A1/en
Pending legal-status Critical Current

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
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • 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
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A61M2005/2403—Ampoule inserted into the ampoule holder
    • A61M2005/2407—Ampoule inserted into the ampoule holder from the rear

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

Safety syringe, with an incorporated needle which is mobile and is held hidden, by means of a spring, in a chamber in the body of the syringe, and which emerges only upon the introduction of the carpule of substance to be injected, which compresses the spring, and which needle returns automatically, by means of the spring, upon the withdrawal of the carpule.

Description

Quand elle est faite avec une seringue à carpule, l'injection thérapeutique comporte une phase dangereuse pour le praticien, une fois l'injection terminée. L'aiguille n'est plus stérile. Souillée, elle est devenue dangereùse. Le risque de blessure n'est pas négligeable, lors du démontage et de la manipulation de la seringue et du retrait de la carpule qui contenait le liquide injecté. Surtout lors du démontage de l'aiguille, les risques de blessures et donc de contamination sont encore plus élevés. When done with a cartridge syringe, the therapeutic injection involves a dangerous phase for the practitioner, once the injection is finished. The needle is no longer sterile. When wet, it became dangerous. The risk of injury is not negligible, during disassembly and handling of the syringe and removal of the cartridge which contained the injected liquid. Especially when disassembling the needle, the risk of injury and therefore contamination is even higher.

Cette phase est devenue plus cruciale encore avec l'apparition de nouvelles maladies infectieuses, le SIDA en particulier
La présente invention a pour but de remédier à cet état de chose, en rendant inutile le démontage de l'aiguille, avec une seringue à usage unique en matière plastique ou en métal, composée d'une chambre (A) qui contient l'aiguille ( B) et un ressort (1) qui maintient l'aiguille cachée à l'intérieur de la seringue, l'introduction de la carpule (D) contenant le liquide à injecter dans le compartiment (C) de la seringue comprime le ressort, fait sortir l'aiguille et la maintient immobile pendant l'injection.This phase became even more crucial with the appearance of new infectious diseases, AIDS in particular
The object of the present invention is to remedy this state of affairs, by making it unnecessary to disassemble the needle, with a disposable syringe made of plastic or metal, composed of a chamber (A) which contains the needle. (B) and a spring (1) which keeps the needle hidden inside the syringe, the introduction of the cartridge (D) containing the liquid to be injected into the compartment (C) of the syringe compresses the spring, brings out the needle and keeps it stationary during the injection.

Le maintient de la carpule dans la seringue est obtenu par les procédés habituels, Une fois l'injection terminée, le retrait de la carpule libère le ressort qui fait rentrer l'aiguille dans la chambre et donc disparaltre l'aiguille dans le corps de la seringue. Le tout est ensuite jetée, cette seringue est à usage unique.The maintenance of the cartridge in the syringe is obtained by the usual methods, Once the injection is complete, the withdrawal of the cartridge releases the spring which makes the needle enter the chamber and therefore disperse the needle in the body of the syringe. The whole is then discarded, this syringe is for single use.

La présente invention sera mieux comprise par les dessins et la description qui va suivre. The present invention will be better understood from the drawings and the description which follows.

La fig I montre la chambre (A) dans la partie terminale du corps de la seringue avant la mise en place de son aiguille
la fig 2 montre l'aiguille (B) hors de la seringue
la fig 3 montre l'aiguille (B) dans la chambre (A) de la seringue au repos
la fig 4 montre l'aiguille (B) dans la chambre (A) de la seringue, carpule (D) engagée pour l'injection dans le compartiment (C).Fig I shows the chamber (A) in the end part of the body of the syringe before the insertion of its needle
fig 2 shows the needle (B) out of the syringe
fig 3 shows the needle (B) in the chamber (A) of the syringe at rest
fig 4 shows the needle (B) in the chamber (A) of the syringe, cartridge (D) engaged for injection in the compartment (C).

La partie avant de la seringue comporte une chambre (A) en prolongement du logement (C) situé dans le corps de la seringue. Ce logement (C) est destiné à contenir la carpule du produit, médicament, anesthésique à injecter. Ce logement (C) est au diamètre et à la longueur de la carpule, avec des dimensions suffisamment larges pour permettre le libre passage de la carpule. La chambre (A) est prévue pour contenir l'aiguille (B). Sa longueur est très peu supérieure à la somme de la longueur de l'aiguille métallique (9) qui sera sortie pour l'injection et du corps (2) de l'aiguille.  The front part of the syringe has a chamber (A) in extension of the housing (C) located in the body of the syringe. This housing (C) is intended to contain the cartridge of the product, drug, anesthetic to be injected. This housing (C) is the diameter and the length of the cartridge, with dimensions large enough to allow free passage of the cartridge. The chamber (A) is designed to contain the needle (B). Its length is very little greater than the sum of the length of the metal needle (9) which will be taken out for injection and of the body (2) of the needle.

La chambre (A) comporte un trottoir (3) à sa base pour permettre le maintien de l'aiguille au repos ressort (i) détendu, l'aiguille est alors entièrement incluse dans la chambre. Le ressort la maintient complètement à l'intérieur de la seringue et l'empêche de dépasser a l'extérieur. L'ouverture (4) à la base de la chambre (A), et au sommet du logement (C), permet le libre passage de la carpule (D) dans la chambre afin d'armer la seringue1 de pousser l'aiguille qui perfore la carpule et de comprimer le ressort (I), tout en faisant sortir l'aiguille par la partie haute de la chambre au travers d'une ouverture (5). Une sculpture en creux t6) correspondant au relief (7) du sommet du corps (2) de l'aiguille afin d'immobiliser l'aiguille quand elle est sortie.La carpule engagée fait donc sortir l'aiguille et la maintient fixe, calée contre le sommet de la chambre (A). The chamber (A) has a sidewalk (3) at its base to allow the needle to remain at rest (i) spring relaxed, the needle is then fully included in the chamber. The spring keeps it completely inside the syringe and prevents it from sticking out. The opening (4) at the base of the chamber (A), and at the top of the housing (C), allows the free passage of the cartridge (D) in the chamber in order to arm the syringe1 to push the needle which perforates the cartridge and compress the spring (I), while bringing the needle out through the upper part of the chamber through an opening (5). A hollow sculpture t6) corresponding to the relief (7) of the top of the body (2) of the needle in order to immobilize the needle when it is out. The engaged carpule therefore brings out the needle and keeps it fixed, wedged against the top of the chamber (A).

Dans la partie supérieure de la chambre (A) une encoche périphérique (8) située tout autour, maintient le ressort ( 1 ) .  In the upper part of the chamber (A) a peripheral notch (8) located all around, holds the spring (1).

Le ressort (1) peut être indifféremment compris comme faisant partie de la chambre (A) ou de l'aiguille (B) selon qu'il est fixé au cours de la fabrication dans l'une ou dans l'autre ou dans les deux à la fois. The spring (1) can be understood either as part of the chamber (A) or of the needle (B) depending on whether it is fixed during the manufacture in one or the other or in both at a time.

La longueur et la largeur totale de la seringue sont fonction de la longueur et de la largeur de la carpule et de la longueur et de la largeur de la chambre qui est elle même fonction de la longueur de l'aiguille une fois sortie ainsi que de sa largeur. En effet il existe de multiples types d'aiguilles dont les parties utiles à l'injection sont de différentes longueurs ainsi que de différents diamètres. Aussi différentes tailles de seringues existent donc en fonction des types d'aiguilles utilisées. The length and the total width of the syringe are a function of the length and the width of the cartridge and the length and the width of the chamber which is itself a function of the length of the needle after exit as well as its width. Indeed, there are multiple types of needles whose parts useful for injection are of different lengths as well as different diameters. Also different sizes of syringes therefore exist depending on the types of needles used.

L'aiguille (B) est composée du tuyau métallique (9) nécessaire a l'injection et du corps (2) dont le fond ( 1 û) est poussé par la carpule (D), sa forme générale cylindrique dont le diamètre est à peine plus petit que le diamètre intérieur de la chambre (A) lui assure stabilité et déplacement dirigé dans la chambre. The needle (B) is composed of the metal pipe (9) necessary for injection and of the body (2) whose bottom (1 û) is pushed by the carpule (D), its generally cylindrical shape whose diameter is barely smaller than the interior diameter of the chamber (A) ensures stability and directed movement in the chamber.

Le corps (2) de longueur environ S à 12 mm selon le type d'aiguille se termine par un cône (7) ou autre relief qui a pour but de s'immobiliser dans la forme (6) prête à le recevoir dans la partie interne et supérieure de la chambre (A) afin d'immobiliser complètement l'aiguille (5) pendant l'injection.  The body (2) of length about S to 12 mm depending on the type of needle ends in a cone (7) or other relief which aims to immobilize in the form (6) ready to receive it in the part inner and upper chamber (A) to completely immobilize the needle (5) during injection.

Le corps (2) de l'aiguille comporte deux parties. L'une, la masse principale (21) assure la stabilisation de l'ensemble de l'aiguille dans la chambre de la seringue. La deuxième1 épaississement (22) autour du tuyau métallique (9) limite la sortie et immobilise l'aiguille pour l'injection par son sommet (7). En gardant la masse principale (21) éloignée du fond supérieur de la chambre (A), il y a ainsi de la place pour le ressort comprime. The body (2) of the needle has two parts. One, the main mass (21), stabilizes the entire needle in the syringe chamber. The second thickening (22) around the metal pipe (9) limits the outlet and immobilizes the needle for injection through its top (7). By keeping the main mass (21) away from the upper bottom of the chamber (A), there is thus room for the compressed spring.

Dans le corps (2) de l'aiguille une encoche (11) stabilise le ressort (1) de même que dans le sommet de la chambre. In the body (2) of the needle a notch (11) stabilizes the spring (1) as well as in the top of the chamber.

Le ressort (1) de préférence à boudin peut être en métal ou en matière plastique, son diamètre, sa longueur et sa force sont fonction du type d'aiguille utilisée, et de la grosseur de la seringue ainsi que du type de la carpule. The spring (1) preferably with a rod can be made of metal or plastic, its diameter, its length and its force depend on the type of needle used, and on the size of the syringe as well as on the type of cartridge.

Par rapport à l'axe principal de la seringue, la chambre et l'aiguille peuvent être dans le même axe ou décalées  Relative to the main axis of the syringe, the chamber and the needle can be in the same axis or offset

Claims (3)

li Instrument constitué en une seringue de sécurité avec une aiguille incorporée (B), mobile et maintenue cachée par un ressort (I) dans une chambre (A) dans le corps de la seringue qui ne sort que lors de l'introduction de la carpule (D) du produit à injecter, qui comprime le ressort (1), et qui rentre automatiquement, grâce au ressort (i) lors du retrait de la carpule (D).  li Instrument consisting of a safety syringe with an incorporated needle (B), mobile and kept hidden by a spring (I) in a chamber (A) in the body of the syringe which only comes out when the cartridge is introduced (D) of the product to be injected, which compresses the spring (1), and which returns automatically, thanks to the spring (i) when the cartridge (D) is withdrawn. REVENDICATIONS 2) Instrument selon la revendication 1 caractérisé en ce que l'aiguille mobile (B) de la seringue est cachée dans une chambre (A) avec un ressort (I) qui la maintient complètement à l'intérieur de la seringue et l'empêche de dépasser à l'extérieur. 2) Instrument according to claim 1 characterized in that the movable needle (B) of the syringe is hidden in a chamber (A) with a spring (I) which keeps it completely inside the syringe and prevents it to overtake outside. 3) Instrument selon l'une des revendications précédentes caractérisé en ce que l'introduction de la carpule (D) du produit à injecter pousse l'aiguille (B), la fait sortir de la seringue, comprime le ressort (1) et immobilise totalement l'aiguille (B) contre le sommet intérieur de la chambre (A) et permet à la seringue de servir pour l'injection. 3) Instrument according to one of the preceding claims, characterized in that the introduction of the cartridge (D) of the product to be injected pushes the needle (B), takes it out of the syringe, compresses the spring (1) and immobilizes the needle (B) completely against the interior top of the chamber (A) and allows the syringe to be used for injection. A) Instrument selon l'une des revendications précédentes caractérisé en ce que le retrait de la carpule (D) libère le ressort ( 1 ) qui fait rentrer l'aiguille (B) qui disparait complètement dans la chambre (A) de la seringue.  A) Instrument according to one of the preceding claims, characterized in that the withdrawal of the cartridge (D) releases the spring (1) which causes the needle (B) to enter, which disappears completely in the chamber (A) of the syringe.
FR9012055A 1990-10-01 1990-10-01 Syringe with incorporated and mobile needle Pending FR2667249A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9012055A FR2667249A1 (en) 1990-10-01 1990-10-01 Syringe with incorporated and mobile needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9012055A FR2667249A1 (en) 1990-10-01 1990-10-01 Syringe with incorporated and mobile needle

Publications (1)

Publication Number Publication Date
FR2667249A1 true FR2667249A1 (en) 1992-04-03

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FR9012055A Pending FR2667249A1 (en) 1990-10-01 1990-10-01 Syringe with incorporated and mobile needle

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FR (1) FR2667249A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478324A (en) * 1993-02-19 1995-12-26 Medicorp Holding S.A. Prefilled syringe for storing and for transfer of liquid and sterile medicinal substances
WO2005120608A1 (en) * 2004-06-07 2005-12-22 Global Medisafe Holdings Pty Limited Retractable needle for a syringe
US7806860B2 (en) 2005-11-15 2010-10-05 Global Medisafe Holdings Limited Safety syringe with plunger locking means

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079607A (en) * 1980-06-30 1982-01-27 Temple Cox Dev Co Ltd Holders for hypodermic syringes
EP0288003A1 (en) * 1987-04-20 1988-10-26 Habley Medical Technology Corporation Dental syringe having an automatically retractable needle
US4820275A (en) * 1987-12-21 1989-04-11 Habley Medical Technology Corporation Retractable needle syringe with integral spring
WO1989004678A1 (en) * 1987-11-09 1989-06-01 Habley Medical Technology Corporation Shielded safety syringe having a retractable needle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079607A (en) * 1980-06-30 1982-01-27 Temple Cox Dev Co Ltd Holders for hypodermic syringes
EP0288003A1 (en) * 1987-04-20 1988-10-26 Habley Medical Technology Corporation Dental syringe having an automatically retractable needle
WO1989004678A1 (en) * 1987-11-09 1989-06-01 Habley Medical Technology Corporation Shielded safety syringe having a retractable needle
US4820275A (en) * 1987-12-21 1989-04-11 Habley Medical Technology Corporation Retractable needle syringe with integral spring

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478324A (en) * 1993-02-19 1995-12-26 Medicorp Holding S.A. Prefilled syringe for storing and for transfer of liquid and sterile medicinal substances
WO2005120608A1 (en) * 2004-06-07 2005-12-22 Global Medisafe Holdings Pty Limited Retractable needle for a syringe
US7806860B2 (en) 2005-11-15 2010-10-05 Global Medisafe Holdings Limited Safety syringe with plunger locking means

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