WO1990000072A1 - Syringe comprising a body with a variable-volume chamber and a needle device which can be mounted on said body - Google Patents

Syringe comprising a body with a variable-volume chamber and a needle device which can be mounted on said body Download PDF

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Publication number
WO1990000072A1
WO1990000072A1 PCT/FR1989/000347 FR8900347W WO9000072A1 WO 1990000072 A1 WO1990000072 A1 WO 1990000072A1 FR 8900347 W FR8900347 W FR 8900347W WO 9000072 A1 WO9000072 A1 WO 9000072A1
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WO
WIPO (PCT)
Prior art keywords
syringe
walls
chamber
volume
needle device
Prior art date
Application number
PCT/FR1989/000347
Other languages
French (fr)
Inventor
Jacques Adolphe Paul Soudant
Original Assignee
Jacques Adolphe Paul Soudant
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 Jacques Adolphe Paul Soudant filed Critical Jacques Adolphe Paul Soudant
Publication of WO1990000072A1 publication Critical patent/WO1990000072A1/en

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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
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • A61M5/281—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule
    • A61M5/282—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule by compression of deformable ampoule or carpule wall
    • 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
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • A61M5/285—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened
    • A61M5/288—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened by piercing without internal pressure increase
    • 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
    • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw

Definitions

  • the present invention relates to a syringe comprising a syringe body in which is defined a variable volume chamber containing the liquid to be injected and means for varying the volume of said chamber, the actuation of which enables the liquid to be expelled by reducing the volume out of the chamber, through an outlet orifice, as well as a needle device capable of being mounted on the end of said body, which comprises said orifice.
  • Known syringes of this type comprise a cylindrical body in which is axially movable a piston which constitutes the means for varying the volume of the aforementioned chamber and is provided with a rod ending in a manual actuation head.
  • a major drawback lies in the fact that the syringe bodies cannot be dispensed in the filled state to the users. In fact, when the syringe is filled, the piston is only slightly axially engaged in the body and the rod is almost entirely outside of the latter. It is obvious that in this state, the syringes are only difficult to transport.
  • the filling operation of the syringe should be carried out instead of using the syringe, which is not always without breaking the general rules of hygiene.
  • the syringe when filled, has a total length which is almost double the length of its cylindrical body, the person giving the injection must handle the syringe using both hands. It is common to use syringes also for blood tests. However, since the syringes in the filled state are difficult to transport, the blood should then be transferred to another container which is transportable. It is obvious that such a transfer of blood involves a risk of contamination of the blood.
  • the present invention aims to provide a syringe which no longer has the considerable drawbacks which have just been stated.
  • a syringe according to the invention is characterized in that its body has, in an axial view, a substantially triangular shape, that the outlet orifice is located at a corner of the triangle and in that at least the external walls of said body, which are parallel to the surface of said triangle, and that located opposite said orifice are deformable o and the walls delimiting the two sides of the triangle which are adjacent to said corner are capable of being brought together one on the other by applying pressure to said body at the two other corners of the triangle.
  • the syringe body has a general accordion configuration, where the fold lines converge towards the aforementioned outlet orifice, the actuating walls being advantageously rigid and having at level 0 of said orifice pivot zones.
  • the chamber of the syringe body when filled, is closed by a tearable closure member such as a seal, which is located at the outlet of the the syringe.
  • the needle device is adapted to be fitted onto the part of the syringe which comprises the outlet orifice, by a movement in the axial direction of the syringe and comprises at the inside a member for tearing the abovementioned closure member during said axial fitting movement.
  • FIG. 1 is a schematic perspective view of a syringe according to the present invention.
  • FIG. 2 is a sectional view along line II-II of Figure 1;
  • FIG. 3 is a side view of a syringe body according to the invention in its state of lower • volume.
  • the reference symbols 1 and 2 respectively designate the body of the syringe of the invention and its needle device which is capable of being fitted onto the body 1 by a movement in the direction of the XX axis in the direction of the arrow F.
  • the body of the syringe 1 has the general configuration of a bellows having in an axial section the shape of a triangle.
  • the end 3 comprising the orifice 4 of the syringe is located at a corner of the triangle.
  • the lateral external walls 6 which are parallel to the triangular cross-section and the wall 7 situated opposite the end 3 with the orifice 4 are deformable and have in the embodiment shown an accordion configuration, the fold lines of the surfaces 6 converging towards the end 3.
  • the upper and lower walls 8 and 9 which extend perpendicular to the deformable walls 6 and 7 have a generally rectangular shape.
  • the end 3 of the syringe body 1 has a generally cylindrical shape whose axis coincides with the axis XX of the syringe and has an axial channel 14 which communicates with the chamber 13 and opens at its other end towards the outside, through the outlet orifice 4.
  • the cylindrical external surface of the end 3 carries a helical rib 16 which extends over a length corresponding to an angle advantageously between 90 and 180 °. The function of this rib will be explained later.
  • the injection liquid is introduced into this chamber and the latter is then closed at 1 using a member such as a cover 17 at the outlet orifice 4.
  • the needle device 2 has a body 19 for supporting the needle 20 of the syringe and has on the side adjacent to the end 3 of the syringe body 1 a cylindrical bore 21 having a diameter slightly greater than the external diameter of the end 3.
  • a helical groove 22 which is intended during the fitting of the needle device 2 on the end 3 of the syringe body 1 to cooperate with the helical rib 16 of the latter in the manner of a thread.
  • the needle 20 penetrates axially into the bore 21 over a sufficient length indicated at 25 to be able to pierce the seal 17 for closing the chamber 13 during the fitting of the device 2 on the body of syringe 1.
  • the body of the needle 2 with a spacer 23, which could be in the form of a single rod, to lock the body 1 to the maximum volume state of the chamber 13.
  • the ends of the rod 23 could be provided with small projections capable of engaging in suitable recesses, formed in the internal surfaces of the actuating walls 8 and 9 from the syringe.
  • the syringe body is shown in its position of smallest volume.
  • a U-shaped member 24 can be provided to lock the body in this position.
  • the deformable walls could be produced in any other known manner.
  • the deformable walls 6 and 7 could be made of an elastically deformable material. In the filled state, these walls could be in the elastically stretched state. This state could be maintained by appropriate return means acting between the walls 8 and 9 of the syringe so that the liquid is always ejected by manual actuation of the syringe.
  • the syringe body could have any other suitable shape. It is only important that the reduction in chamber 13 can be obtained by bringing together at least two walls of the body.
  • the cooperating parts of the syringe body and of the needle device may also have any other appropriate complementary shape. For example, they could have a conical shape.
  • the syringe body 1 is in one piece. According to a second embodiment, this body could also be made in two separate and assembled parts.
  • a part could be constituted by an envelope intended to contain the liquid and having a general shape corresponding to that of the body 1 shown.
  • the other part would be made in the form of a part of the refillable cartridge type, which would then comprise the end body 3 and the pivoting rigid walls 8, 9 of the syringe shown.
  • the envelope would be insertable into this cartridge body and would include a tubular outlet part which would be capable of engaging in the axial channel 14 and could even pass through it so that it can then be taken when the needle device is mounted on the end 3 of the cartridge body between the front faces of this device and the end 3.
  • the cover 17 would be located in this tubular part.
  • This second embodiment would allow the cartridge body to be reused and it would then suffice to distribute only the envelopes filled with the liquid to be injected.
  • One solution to this problem would consist in using the state of compression of the syringe body, that is to say the approximation of the rigid walls 8 and 9 during their pivoting around the axes YY. Thus the angle between these two walls would constitute a visual reference of the quantity of liquid still contained in the syringe and / or of the quantity which has already been injected.
  • an element in the form of a triangular plate or a tongue which would be integral with one of the walls 8 or 9 and would extend in a perpendicular plane to the pivot axes YY, so that the other wall moves during the compression of the syringe along this element.

Landscapes

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

Said syringe comprises a syringe body (1) inside which a variable-volume chamber is delimited, containing the liquid to be injected, and means for varying the volume in said chamber, as well as a needle device (2). Said syringe is characterized in that said body (1) has, in its axial cross-section, a generally triangular shape, that the outlet (4) is situated in one of the corners of the triangle and that at least the external lateral walls of said body, which have a generally triangular shape, and the wall situated opposite said outlet (4) are deformable and the walls (8, 9) forming the subtenses adjacent to said outlet can be brought closer to each other by advantageously exerting pressure on said body at the two other corners of the triangle. Said invention is suitable for medical applications.

Description

"Seringue comprenant un corps à chambre de volume variable et un dispositif d'aiguille assemblable audit corps" . "Syringe comprising a body with a chamber of variable volume and a needle device which can be assembled with said body".
La présente invention concerne une seringue comprenant un corps de seringue dans lequel est délimitée une chambre de volume variable contenant le liquide à injecter et des moyens de variations du volume de ladite chambre, dont l'actionnement permet par la diminution du volume de chasser le liquide hors de la chambre, à travers un orifice de sortie, ainsi qu'un dispositif d'aiguille susceptible d'être monté sur l'extrémité dudit corps, qui comporte ledit orifice.The present invention relates to a syringe comprising a syringe body in which is defined a variable volume chamber containing the liquid to be injected and means for varying the volume of said chamber, the actuation of which enables the liquid to be expelled by reducing the volume out of the chamber, through an outlet orifice, as well as a needle device capable of being mounted on the end of said body, which comprises said orifice.
Les seringues connues de ce type comportent un corps cylindrique dans lequel est monté axialement mobile un piston qui constitue les moyens de variations du volume de la chambre susmentionnés et est pourvu d'une tige se terminant par une tête d'actionnement manuel. Ces seringues connues présentent de nombreux inconvénients. Un inconvénient majeur réside dans le fait que que les corps de seringues ne peuvent pas être distribués à l'état rempli aux utilisateurs. En effet, lorsque la seringue est remplie, le piston n'est que faiblement axialement engagé dans le corps et la tige se trouve pratiquement entièrement à l'extérieur de celui-ci. Il est évident qu'à cet état, les seringues ne sont que difficilement transportables. Par conséquent, l'opération de remplissage de la seringue doit être effectuée au lieu de l'utilisation de la seringue, ce qui ne va pas toujours sans enfreindre les règles générales d'hygiène. En outre, dans la mesure où la seringue, lorsqu'elle est remplie, présente une longueur totale qui est pratiquement le double de la longueur de son corps cylindrique, la personne qui fait l'injection doit manipuler la seringue en utilisant ses deux mains. Il est courant d'utiliser les seringues également pour faire des prises de sang. Or, dans la mesure où les seringues à l'état rempli sont difficilement transportables, il convient de transférer le sang 5 ensuite dans un autre récipient qui est transportable. Il est évident qu'un tel transfert du sang implique un risque d'une contamination du sang.Known syringes of this type comprise a cylindrical body in which is axially movable a piston which constitutes the means for varying the volume of the aforementioned chamber and is provided with a rod ending in a manual actuation head. These known syringes have many drawbacks. A major drawback lies in the fact that the syringe bodies cannot be dispensed in the filled state to the users. In fact, when the syringe is filled, the piston is only slightly axially engaged in the body and the rod is almost entirely outside of the latter. It is obvious that in this state, the syringes are only difficult to transport. Therefore, the filling operation of the syringe should be carried out instead of using the syringe, which is not always without breaking the general rules of hygiene. In addition, since the syringe, when filled, has a total length which is almost double the length of its cylindrical body, the person giving the injection must handle the syringe using both hands. It is common to use syringes also for blood tests. However, since the syringes in the filled state are difficult to transport, the blood should then be transferred to another container which is transportable. It is obvious that such a transfer of blood involves a risk of contamination of the blood.
La présente invention a pour objectif de proposer une seringue qui ne présente plus les inconvénients considérables qui viennent d'être énoncés.The present invention aims to provide a syringe which no longer has the considerable drawbacks which have just been stated.
Pour atteindre ce but, une seringue selon l'invention est caractérisée en ce que son corps présente dans une 5 vue axiale une forme sensiblement triangulaire, que l'orifice de sortie se trouve au niveau d'un coin du triangle et en ce qu'au moins les parois externes dudit corps, qui sont parallèles à la surface dudit triangle, et celle située en regard dudit orifice sont deformables o et les parois délimitant les deux côtés du triangle qui sont adjacents dudit coin sont susceptibles d'être rapprochées l'une de l'autre en exerçant une pression audit corps au niveau des deux autres coins du triangle.To achieve this object, a syringe according to the invention is characterized in that its body has, in an axial view, a substantially triangular shape, that the outlet orifice is located at a corner of the triangle and in that at least the external walls of said body, which are parallel to the surface of said triangle, and that located opposite said orifice are deformable o and the walls delimiting the two sides of the triangle which are adjacent to said corner are capable of being brought together one on the other by applying pressure to said body at the two other corners of the triangle.
5 Selon une caractéristique avantageuse de l'invention, le corps de seringue présente une configuration générale en accordéon, où les lignes de pliage convergent vers l'orifice de sortie précité, les parois d'actionnement étant avantageusement rigides et présentant au niveau 0 dudit orifice des zones de pivotement.5 According to an advantageous characteristic of the invention, the syringe body has a general accordion configuration, where the fold lines converge towards the aforementioned outlet orifice, the actuating walls being advantageously rigid and having at level 0 of said orifice pivot zones.
Selon une autre caractéristique avantageuse de l'invention, la chambre du corps de seringue, lorsqu'elle est remplie, est fermée par un organe d'obturation déchirable tel qu'un opercule, qui est situé au niveau de l'orifice de sortie de la seringue. Selon encore une autre caractéristique avantageuse de l'invention, le dispositif d'aiguille est adapté pour être emmanché sur la partie de la seringue qui comporte l'orifice de sortie, par un mouvement dans la direction axiale de la seringue et comporte à l'intérieur un organe de déchirement de l'organe d'obturation précité lors dudit mouvement axial d'emmanchement.According to another advantageous characteristic of the invention, the chamber of the syringe body, when filled, is closed by a tearable closure member such as a seal, which is located at the outlet of the the syringe. According to yet another advantageous characteristic of the invention, the needle device is adapted to be fitted onto the part of the syringe which comprises the outlet orifice, by a movement in the axial direction of the syringe and comprises at the inside a member for tearing the abovementioned closure member during said axial fitting movement.
L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention, et dans lesquels :The invention will be better understood, and other objects, characteristics, details and advantages thereof will appear more clearly during the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating a embodiment of the invention, and in which:
- la figure 1 est une vue schématique en perspective d'une seringue selon la présente invention;- Figure 1 is a schematic perspective view of a syringe according to the present invention;
- la figure 2 est une vue en coupe le long de la ligne II-II de la figure 1; et- Figure 2 is a sectional view along line II-II of Figure 1; and
- la figure 3 est une vue latérale d'un corps de seringue selon l'invention à son état de plus faible • volume.- Figure 3 is a side view of a syringe body according to the invention in its state of lower • volume.
Dans le mode de réalisation de l'invention représenté aux figures, les symboles de référence 1 et 2 désignent respectivement le corps de la seringue de l'invention et son dispositif d'aiguille qui est susceptible d'être emmanché sur le corps 1 par un mouvement dans la direction de l'axe X-X dans le sens de la flèche F.In the embodiment of the invention shown in the figures, the reference symbols 1 and 2 respectively designate the body of the syringe of the invention and its needle device which is capable of being fitted onto the body 1 by a movement in the direction of the XX axis in the direction of the arrow F.
Le corps de la seringue 1 présente la configuration générale d'un soufflet présentant en une coupe axiale la forme d'un triangle. L'extrémité 3 comportant l'orifice 4 de la seringue se situe à un coin du triangle. Les parois externes latérales 6 qui sont parallèles à la section transversale triangulaire et la paroi 7 située en regard de l'extrémité 3 avec l'orifice 4 sont deformables et présentent dans le mode de réalisation représenté une configuration en accordéon, les lignes de pliage des surfaces 6 convergeant en direction de l'extrémité 3. Les parois supérieure et inférieure 8 et 9 qui s'étendent perpendiculairement aux parois deformables 6 et 7 présentent une forme générale rectangulaire. Elles sont relativement rigides mais comportent près de l'extrémité d'orifice 3 une zone permettant leur pivotement chacune autour d'un axe Y-Y qui s'étend perpendiculairement aux parois deformables latérales 6. On comprend aisément qu'en exerçant une pression en direction des flèches A sur les extrémités libres 12 des parois pivotantes 8, 9, on peut réduire le volume de la chambre 13 qui est délimité par les parois deformables 6 et 7 et les parois pivotantes 8.The body of the syringe 1 has the general configuration of a bellows having in an axial section the shape of a triangle. The end 3 comprising the orifice 4 of the syringe is located at a corner of the triangle. The lateral external walls 6 which are parallel to the triangular cross-section and the wall 7 situated opposite the end 3 with the orifice 4 are deformable and have in the embodiment shown an accordion configuration, the fold lines of the surfaces 6 converging towards the end 3. The upper and lower walls 8 and 9 which extend perpendicular to the deformable walls 6 and 7 have a generally rectangular shape. They are relatively rigid but have near the end of the orifice 3 a zone allowing their pivoting each around an axis YY which extends perpendicular to the lateral deformable walls 6. It is easily understood that by exerting a pressure in the direction of the arrows A on the free ends 12 of the pivoting walls 8, 9, it is possible to reduce the volume of the chamber 13 which is delimited by the deformable walls 6 and 7 and the pivoting walls 8.
L'extrémité 3 du corps de seringue 1 présente une forme générale cylindrique dont l'axe coïncide avec l'axe X-X de la seringue et comporte un canal axial 14 qui communique avec la chambre 13 et débouche à son autre extrémité vers l'extérieur, par l'orifice de sortie 4. La surface externe cylindrique de l'extrémité 3 porte une nervure 16 hélicoïdale qui s'étend sur une longueur correspondant à un angle avantageusement compris entre 90 et 180°. La fonction de cette nervure sera expliquée plus loin.The end 3 of the syringe body 1 has a generally cylindrical shape whose axis coincides with the axis XX of the syringe and has an axial channel 14 which communicates with the chamber 13 and opens at its other end towards the outside, through the outlet orifice 4. The cylindrical external surface of the end 3 carries a helical rib 16 which extends over a length corresponding to an angle advantageously between 90 and 180 °. The function of this rib will be explained later.
Lorsque le corps de seringue 1 est à son état déployé et la chambre 18 présente par exemple son volume maximum comme cela est représenté aux figures 1 et 2, on introduit le liquide d'injection dans cette chambre et on obture ensuite celle-ci à l'aide d'un organe tel qu'un opercule 17 au niveau de l'orifice de sortie 4.When the syringe body 1 is in its deployed state and the chamber 18 has, for example, its maximum volume as shown in FIGS. 1 and 2, the injection liquid is introduced into this chamber and the latter is then closed at 1 using a member such as a cover 17 at the outlet orifice 4.
Cet opercule est réalisé en un matérieu déchirable. Le dispositif d'aiguille 2 présente un corps 19 de support de l'aiguille 20 de la seringue et possède du côté adjacent à l'extrémité 3 du corps de seringue 1 un alésage cylindrique 21 présentant un diamètre légèrement supérieur au diamètre externe de l'extrémité 3. Dans la paroi interne cylindrique de l'alésage 21 est pratiquée une rainure hélicoïdale 22 qui est destinée lors de l'emmanchement du dispositif d'aiguille 2 sur l'extrémité 3 du corps de seringue 1 à coopérer avec la nervure hélicoïdale 16 de ce dernier à la manière d'un filetage.This cover is made of a tearable material. The needle device 2 has a body 19 for supporting the needle 20 of the syringe and has on the side adjacent to the end 3 of the syringe body 1 a cylindrical bore 21 having a diameter slightly greater than the external diameter of the end 3. In the cylindrical internal wall of the bore 21 is formed a helical groove 22 which is intended during the fitting of the needle device 2 on the end 3 of the syringe body 1 to cooperate with the helical rib 16 of the latter in the manner of a thread.
Comme le montrent les figures, l'aiguille 20 pénètre axialement dans l'alésage 21 sur une longueur suffisante indiquée en 25 pour pouvoir percer l'opercule 17 d'obturation de la chambre 13 lors de l'emmanchement du dispositif 2 sur le corps de seringue 1.As shown in the figures, the needle 20 penetrates axially into the bore 21 over a sufficient length indicated at 25 to be able to pierce the seal 17 for closing the chamber 13 during the fitting of the device 2 on the body of syringe 1.
En se reportant à la figure 2, on constate que l'on peut pourvoir le corps de l'aiguille 2 d'un organe d'écartement 23, qui pourrait être réalisé sous forme d'une simple tige, pour verrouiller le corps 1 à l'état de volume maximal de la chambre 13. Comme cela est schématiquement indiqué, les extrémités de la tige 23 pourraient être pourvues de petites saillies susceptibles de s'engager dans des évidéments appropriés, pratiquées dans les surfaces internes des parois d'actionnement 8 et 9 de la seringue. A la figure 3, on a représenté le corps de seringue dans sa position de plus faible volume. Un organe 24 en forme de U peut être prévu pour verrouiller le corps dans cette position.Referring to Figure 2, we see that we can provide the body of the needle 2 with a spacer 23, which could be in the form of a single rod, to lock the body 1 to the maximum volume state of the chamber 13. As is schematically indicated, the ends of the rod 23 could be provided with small projections capable of engaging in suitable recesses, formed in the internal surfaces of the actuating walls 8 and 9 from the syringe. In Figure 3, the syringe body is shown in its position of smallest volume. A U-shaped member 24 can be provided to lock the body in this position.
Le fonctionnement et le montage d'une seringue selon l'invention ressort directement de la description qui vient d'être faite et des figures. Ainsi, après le remplissage de la chambre 13 du corps de seringue 1 et l'obturation de cette chambre à l'aide de l'opercule 17 et après avoir, le cas échéant, mis en place la tige d'écartement 23, la seringue peut être distribuée à l'état rempli sans aucun inconvénient. Lors de son utilisation, il suffit alors de monter par emmanchement axial le dispositif d'aiguille 2 sur l'extrémité 3 du corps de seringue 1. Etant donné que la partie interne 25 de l'aiguille 2 a percé l'opercule 17 lors de l'assemblage des deux parties de la seringue, celle-ci est immédiatement prête pour être utilisée. Etant donné que la seringue selon l'invention n'a pas besoin d'un piston axialement mobile, comme les seringues connues, elle peut présenter une très faible longueur, ce qui permet à l'utilisateur d'effectuer l'injection à l'aide d'une seule main.The operation and mounting of a syringe according to the invention appears directly from the description which has just been made and from the figures. Thus, after filling the chamber 13 of the syringe body 1 and closing this chamber using the cover 17 and after having, if necessary, put in place the spacer 23, the syringe can be dispensed in the filled state without any inconvenience. When in use, it is then sufficient to mount the needle device 2 axially on the end 3 of the syringe body 1. Since the internal part 25 of the needle 2 has pierced the seal 17 during assembly of the two parts of the syringe, it is immediately ready for use. Since the syringe according to the invention does not need an axially movable plunger, like known syringes, it can have a very short length, which allows the user to perform the injection by help with one hand.
Pour une prise de sang, il suffirait alors d'ouvrir le corps en forme de soufflet de la seringue pour que le sang soit aspiré à travers l'aiguille 20. Après avoir fermé l'orifice 4 du corps de seringue, celle-ci peut être transportée à l'état rempli au lieu du traitement du sang.For a blood test, it would then suffice to open the bellows-shaped body of the syringe so that the blood is sucked through the needle 20. After closing the orifice 4 of the syringe body, the latter can be transported in the filled state instead of blood processing.
Il est évident que de nombreuses variations peuvent être apportées à la seringue telle qu'elle est représentée et décrite. Ainsi, les parois deformables pourraient être réalisées de toute autre manière connue. Par exemple, les parois deformables 6 et 7 pourraient être réalisées en un matériau élastiquement déformable. A l'état rempli, ces parois pourraient se présenter à l'état élastiquement étiré. Cet état pourrait être maintenu par des moyens de rappel appropriés agissant entre les parois 8 et 9 de la seringue pour que l'éjection du liquide se fasse toujours par actionnement manuel de la seringue. En outre le corps de seringue pourrait avoir toute autre forme appropriée. Il importe seulement que la diminution de la chambre 13 puisse être obtenue par rapprochement d'au moins deux parois du corps. Les parties coopérantes du corps de seringue et du dispositif d'aiguille peuvent également présenter toute autre forme complémentaire appropriée. Par exemple, elles pourraient avoir une forme conique.It is obvious that many variations can be made to the syringe as shown and described. Thus, the deformable walls could be produced in any other known manner. For example, the deformable walls 6 and 7 could be made of an elastically deformable material. In the filled state, these walls could be in the elastically stretched state. This state could be maintained by appropriate return means acting between the walls 8 and 9 of the syringe so that the liquid is always ejected by manual actuation of the syringe. In addition, the syringe body could have any other suitable shape. It is only important that the reduction in chamber 13 can be obtained by bringing together at least two walls of the body. The cooperating parts of the syringe body and of the needle device may also have any other appropriate complementary shape. For example, they could have a conical shape.
Dans l'exemple de réalisation de l'invention qui est représenté, le corps de seringue 1 est en une seule pièce. Selon un deuxième mode de réalisation, on pourrait aussi réaliser ce corps en deux parties séparées et assemblables. Une partie pourrait être constituée par une enveloppe destinée à contenir le liquide et présentant une forme générale correspondant à celle du corps 1 représenté. L'autre partie serait réalisée sous forme d'une pièce du type cartouche rechargeable, qui comporterait alors le corps d'extrémité 3 et les parois rigides pivotantes 8, 9 de la seringue représentée. L'enveloppe serait introduisible dans ce corps cartouche et comprendrait une partie tubulaire de sortie qui serait susceptible de s'engager dans le canal axial 14 et pourrait même traverser celui-ci pour pouvoir être ensuite prise lors du montage du dispositif d'aiguille sur l'extrémité 3 du corps cartouche entre les faces frontales de ce dispositif et l'extrémité 3. L'opercule 17 serait situé dans cette partie tubulaire.In the embodiment of the invention which is shown, the syringe body 1 is in one piece. According to a second embodiment, this body could also be made in two separate and assembled parts. A part could be constituted by an envelope intended to contain the liquid and having a general shape corresponding to that of the body 1 shown. The other part would be made in the form of a part of the refillable cartridge type, which would then comprise the end body 3 and the pivoting rigid walls 8, 9 of the syringe shown. The envelope would be insertable into this cartridge body and would include a tubular outlet part which would be capable of engaging in the axial channel 14 and could even pass through it so that it can then be taken when the needle device is mounted on the end 3 of the cartridge body between the front faces of this device and the end 3. The cover 17 would be located in this tubular part.
Ce deuxième mode de réalisation permettrait une réutilisation du corps cartouche et il suffirait alors de ne distribuer que les enveloppes remplies du liquide à injecter.This second embodiment would allow the cartridge body to be reused and it would then suffice to distribute only the envelopes filled with the liquid to be injected.
Dans les deux modes de réalisation, on pourrait faire en sorte que les parois d'actionnement 8 et 9 soient pivotantes à l'encontre d'une force de rappel. A cette fin, on pourrait par exemple prévoir au niveau des zones de pivotement des parois, des éléments tels que des petites tiges ou des languettes en un matériau élastiquement déformable. Bien entendu, ces moyens de rappel pourraient être réalisés de toute autre manière appropriée.In both embodiments, it could be made so that the actuating walls 8 and 9 are pivotable against a restoring force. To this end, one could for example provide at the pivot points of the walls, elements such as small rods or tongues of an elastically deformable material. Of course, these return means could be produced in any other appropriate manner.
On pourrait également prévoir des moyens indicateurs de la quantité de liquide présent dans la chambre 13. Une solution à ce problème consisterait à utiliser l'état de compression du corps de seringue, c'est-à-dire le rapprochement des parois rigides 8 et 9 lors de leur pivotement autour des axes Y-Y. Ainsi l'angle entre ces deux parois constituerait un repère visuel de la quantité de liquide encore contenue dans la seringue et/ou de la quantité qui a déjà été injectée. On pourrait aussi prévoir au niveau de l'extrémité de sortie 3 de la seringue un élément en forme d'une plaque triangulaire ou d'une languette qui serait solidaire de l'une des parois 8 ou 9 et s'étendrait dans un plan perpendiculaire aux axes de pivotement Y-Y, de façon que l'autre paroi se déplace lors de la compression de la seringue le long de cet élément. En prévoyant sur ce dernier une échelle établissant le rapport entre les différentes positions angulaires de la paroi mobile et le volume respectif de la chambre 13, on aurait réalisé un système de repère visuel du contenu de la seringue. Bien entendu toute autre solution appropriée peut être retenue. One could also provide means indicating the amount of liquid present in the chamber 13. One solution to this problem would consist in using the state of compression of the syringe body, that is to say the approximation of the rigid walls 8 and 9 during their pivoting around the axes YY. Thus the angle between these two walls would constitute a visual reference of the quantity of liquid still contained in the syringe and / or of the quantity which has already been injected. One could also provide at the outlet end 3 of the syringe an element in the form of a triangular plate or a tongue which would be integral with one of the walls 8 or 9 and would extend in a perpendicular plane to the pivot axes YY, so that the other wall moves during the compression of the syringe along this element. By providing a scale on the latter establishing the relationship between the different angular positions of the movable wall and the respective volume of the chamber 13, a system of visual cueing of the contents of the syringe would have been produced. Of course any other suitable solution can be chosen.

Claims

Revendications. Claims.
1. Seringue comprenant un corps de seringue dans lequel est délimitée une chambre de volume variable contenant le liquide à injecter et des moyens de variation du 5 volume de ladite chambre, dont 1 'actionnement permet par la diminution du volume de chasser le liquide hors de la chambre à travers un orifice de sortie, ainsi qu'un dispositif d'aiguille susceptible d'être monté sur l'extrémité dudit corps, qui comporte ledit orifice, 0 caractérisée en ce que le corps de seringue (1) présente une configuration générale en accordéon, où les lignes de pliage convergent vers l'orifice de sortie précité (4) et les parois entre lesquelles sont disposées les parois deformables à lignes de pliage sont rigides et 5 forment les parois d'actionnement de la seringue sur lesquelles s'exerce une pression de rapprochement de ces parois, et ce que la zone de convergence de ces parois est réalisée sous forme d'un embout comprenant l'orifice de sortie (4) de la seringue. 01. Syringe comprising a syringe body in which is delimited a chamber of variable volume containing the liquid to be injected and means for varying the volume of said chamber, the actuation of which enables the liquid to be expelled from it by reducing the volume the chamber through an outlet orifice, as well as a needle device capable of being mounted on the end of said body, which comprises said orifice, 0 characterized in that the syringe body (1) has a general configuration accordion, where the fold lines converge towards the aforementioned outlet (4) and the walls between which the deformable walls with fold lines are arranged are rigid and 5 form the actuating walls of the syringe on which s exerts a pressure to approach these walls, and that the zone of convergence of these walls is produced in the form of a nozzle comprising the outlet orifice (4) of the syringe. 0
2. Seringue selon la revendication 1, caractérisée en ce que la chambre (13) du corps de seringue lorsqu'elle est remplie et fermée par un organe d'obturation déchirable (17) tel qu'un opercule, qui est situé au niveau de 5 l'orifice de sortie (4) de la seringue.2. Syringe according to claim 1, characterized in that the chamber (13) of the syringe body when it is filled and closed by a tear-off closure member (17) such as a cap, which is located at 5 the outlet (4) of the syringe.
3. Seringue selon l'une des revendications précédentes, caractérisée en ce que le dispositif d'aiguille (2) est adapté pour être emmanché sur la partie (3) de la Q seringue qui comporte l'orifice de sortie (4), par un mouvement dans la direction axiale de la seringue et comporte à l'intérieur un organe de déchirement (25) de l'organe d'obturation (17) précité lors dudit mouvement axial d'emmanchement. 3. Syringe according to one of the preceding claims, characterized in that the needle device (2) is adapted to be fitted onto the part (3) of the syringe Q which comprises the outlet orifice (4) a movement in the axial direction of the syringe and comprises inside a tearing member (25) of the closure member (17) mentioned above during said axial fitting movement.
4. Seringue selon l'une des revendications précédentes, caractérisée en ce que l'extrémité (3) du corps de seringue (1) qui comporte l'orifice de sortie (4) présente une surface extérieure sensiblement cylindrique pourvue d'une nervure hélicoïdale (16) destinée à coopérer avec une rainure hélicoïdale (22) pratiquée dans l'alésage d'emmanchement (21) du dispositif d'aiguille (2), la nervure (16) et la rainure (20) constituant des éléments d'un filetage à grand pas.4. Syringe according to one of the preceding claims, characterized in that the end (3) of the syringe body (1) which comprises the outlet orifice (4) has a substantially cylindrical outer surface provided with a helical rib (16) intended to cooperate with a helical groove (22) formed in the fitting bore (21) of the needle device (2), the rib (16) and the groove (20) constituting elements of a large thread.
5. Seringue selon l'une des revendications 3 ou 4, caractérisée en ce que l'organe de déchirement précité de l'organe d'obturation (17) est formé par la partie arrière (25) de l'aiguille (20) du dispositif d'aiguille (2).5. Syringe according to one of claims 3 or 4, characterized in that the aforementioned tearing member of the closure member (17) is formed by the rear part (25) of the needle (20) of the needle device (2).
6. Seringue selon l'une des revendications précédentes, caractérisée en ce qu'elle comporte des moyens de verrouillage (23, 24) du corps de seringue (1) dans ses positions relativement déployées et repliées.6. Syringe according to one of the preceding claims, characterized in that it comprises locking means (23, 24) of the syringe body (1) in its relatively deployed and folded positions.
7. Seringue selon l'une des revendications précédentes, caractérisée en ce que le corps de seringue est formé par deux parties séparées assemblables, dont l'une est réalisée sous forme d'un corps cartouche rechargeable comprenant essentiellement les parois d'actionnement (8, 9) reliées de façon pivotante à une portion comportant l'orifice de sortie, tandis que l'autre partie est constituée par un récipient déformable contenant le liquide à injecter et introduisable dans le corps cartouche.7. Syringe according to one of the preceding claims, characterized in that the syringe body is formed by two separate assemblable parts, one of which is produced in the form of a refillable cartridge body essentially comprising the actuating walls (8 , 9) pivotally connected to a portion comprising the outlet orifice, while the other part consists of a deformable container containing the liquid to be injected and which can be introduced into the cartridge body.
8. Seringue selon l'une des revendications précédentes, caractérisée en ce que les parois pivotantes (8, 9) sont pourvues de moyens de rappels élastiques dans leur position de plus grand volume de la chambre (13) de la seringue. 8. Syringe according to one of the preceding claims, characterized in that the pivoting walls (8, 9) are provided with elastic return means in their position of greatest volume of the chamber (13) of the syringe.
9. Seringue selon l'une des revendications précédentes, caractérisée en ce qu'elle comporte des moyens de repère visible établissant un rapport entre l'état de compression du corps de seringue (1) et le volume de la chambre (13). 9. Syringe according to one of the preceding claims, characterized in that it comprises visible reference means establishing a relationship between the state of compression of the syringe body (1) and the volume of the chamber (13).
PCT/FR1989/000347 1988-07-04 1989-07-04 Syringe comprising a body with a variable-volume chamber and a needle device which can be mounted on said body WO1990000072A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809020A FR2633519A1 (en) 1988-07-04 1988-07-04 SYRINGE COMPRISING A VARIABLE VOLUME CHAMBER BODY AND A NEEDLE ASSEMBLY DEVICE
FR88/09020 1988-07-04

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WO1990000072A1 true WO1990000072A1 (en) 1990-01-11

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FR (1) FR2633519A1 (en)
WO (1) WO1990000072A1 (en)

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US5290257A (en) * 1992-01-02 1994-03-01 Zhong Being Tang Method and apparatus for de-airing the heart
US5364358A (en) * 1991-11-05 1994-11-15 Cardio-Search Limited Device for controlling the inflation of a balloon catheter
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US8684968B2 (en) 2006-12-29 2014-04-01 Aktivpak, Inc. Hypodermic drug delivery reservoir and apparatus
AU2008345108A1 (en) 2007-12-28 2009-07-09 Aktivpak, Inc. Dispenser and therapeutic package suitable for administering a therapeutic substance to a subject
JP5734290B2 (en) * 2009-07-14 2015-06-17 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Drug container with flexible inner layer and rigid outer layer

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US5364358A (en) * 1991-11-05 1994-11-15 Cardio-Search Limited Device for controlling the inflation of a balloon catheter
US5290257A (en) * 1992-01-02 1994-03-01 Zhong Being Tang Method and apparatus for de-airing the heart
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US5787682A (en) * 1997-06-03 1998-08-04 Ossid Corporation Method and apparatus for shrinking end seams in a film wrapped around a product
WO2014026694A1 (en) * 2012-08-14 2014-02-20 Injector Aps Disposable injector

Also Published As

Publication number Publication date
EP0404860A1 (en) 1991-01-02
FR2633519A1 (en) 1990-01-05

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