WO1986000815A1 - Apparatus for performing series of medicinal injections - Google Patents

Apparatus for performing series of medicinal injections Download PDF

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Publication number
WO1986000815A1
WO1986000815A1 PCT/FR1985/000196 FR8500196W WO8600815A1 WO 1986000815 A1 WO1986000815 A1 WO 1986000815A1 FR 8500196 W FR8500196 W FR 8500196W WO 8600815 A1 WO8600815 A1 WO 8600815A1
Authority
WO
WIPO (PCT)
Prior art keywords
carriage
rod
pusher
syringe
piston
Prior art date
Application number
PCT/FR1985/000196
Other languages
French (fr)
Inventor
Joseph Hibon
Victor Kabla
Original Assignee
Joseph Hibon
Victor Kabla
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 Joseph Hibon, Victor Kabla filed Critical Joseph Hibon
Publication of WO1986000815A1 publication Critical patent/WO1986000815A1/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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M5/2053—Media being expelled from injector by pressurised fluid or vacuum
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
    • A61M5/3158—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod performed by axially moving actuator operated by user, e.g. an injection button
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/3159—Dose expelling manners
    • A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir

Definitions

  • mesotherapy consists in carrying out medicated intra-dermal injections by series of low doses in an area of the body close to the region to be treated.
  • This method differs from the usual one, which consists in making a single voluminous "general" injection, intramuscular or subcutaneous, in an area of the body
  • Document DE-A-3.026.318 describes a device with which a complete syringe must be associated. But, unlike the invention, a mechanism. in this case a spring 20) acts permanently on the piston and on the syringe body in the direction of extraction of the needle and injection of liquid. This action is only interrupted by a friction brake 31 which is neutralized by the operator acting on the handle. Just keep the handle 7 pressed so that all the liquid contained in the syringe is injected.
  • a present invention relates to a device of the kind described above but which has only one motor element and a limited number of parts, so that the assembly is very simple to construct and , therefore, can be made under a very low weight, facilitating its use.
  • the subject of the invention is an apparatus for carrying out injections of liquids into the flesh of living beings, humans and animals, of the type comprising on the one hand a portable frame which preferably has the general shape of '' a pistol and which receives a longitudinally movable carriage for a removable syringe with needle and drawer, as well as a longitudinally movable plunger intended to act on the syringe drawer and, on the other hand, motor means corresponding to the displacement of carriage and movement of the pusher, characterized in that the drive means are connected to the pusher by a one-way mechanism of any known type for ensuring the movement of the pusher in a first direction corresponding to the insertion of the drawer into the syringe and to leave it free in the opposite direction, while the carriage is free in said first direction and slack in said opposite direction, a stop integral with the frame being placed on the path of the carriage in front and at a distance from the latter less than the stroke of the pusher, means being preferably provided for
  • the carriage is biased in said opposite direction either by the motor means which, then, are of the reversible movement type, or by a return spring;
  • the movable part of the drive means is engaged with a longitudinal rod 1 Lsse passing through an orifice provided in a plane of a lever, oblique to the axis of the rod, lever which is integral with the pusher and which is resiliently biased towards a so-called active position in which it opposes the free transla ⁇ tion of the rod in the orifice in order to be driven by said rod moving in a direction corresponding to the insertion of the drawer into the syringe, while in its opposite direction of movement, the rod freely crosses the orifice and therefore leaves the lever in the location which it occupies, this assembly constituting a one-way mechanism for ensuring the displacement of the plunger in a first direction and to leave it free in the opposite direction; the rod has a length such that its front end is situated in front of the carriage and carries a stop intended for coming into contact with said carriage but only in the direction corresponding to the retreat of the carriage and of the syringe which it carries, the rod to be drawn into this 5 directions
  • the device comprises a cover mounted to slide longitudinally and fitted internally with an eclipsable hook placed in alignment with the pusher or with a part which is integral therewith so that the movement of the cover can be transmitted to said pusher in the forward direction; rear but not in the rear-front direction;
  • the rod is integral with a stop on the path of which is a stopper whose position is adjustable, this assembly thus constituting means for adjusting the length of the stroke of the pusher;
  • the stop is formed by the end of a pin which is parallel to the rod and which is biased by a spring constituting the return spring of the rod;
  • the drive means are constituted by a compressed fluid distributor with a cylinder fixed to the frame and a movable part formed by a drawer mounted to slide in the cylinder and kinematically connected to the pusher; - the drawer is integral with the rod;
  • the frame comprises a stock in which there is a mechanism for controlling the arrival of fluid to the distributor, this mechanism being controlled by a member such as a trigger or trigger, a push button and the like;
  • a member such as a trigger or trigger, a push button and the like;
  • the compressed fluid is stored in an interchangeable bottle housed in the stock and an orifice is placed in communication with the control mechanism;
  • Figure 1 is a schematic exterior view of an apparatus according to the invention, a protective shell is shown in the open position.
  • Figure 2 is a schematic view in longitudinal section of the apparatus of Figure 1, the cover is shown in the closed position, the apparatus being ready for use but not yet in operation.
  • Figure 3 is a schematic sectional view of an apparatus according to the invention, from which the cover has been removed for clarity and which is in the needle extraction position, position which immediately precedes the injection properly said.
  • Figure 4 is a schematic sectional view of the same device shown in the position that these elements oc ⁇ cup at the end of injection.
  • Figures 5 and 6 are partial schematic views in section respectively transverse and horizontal illustrating a means for easy placement of a syringe
  • FIG. 7 is a partial view made in section along the line VII-VII of FIG. 4.
  • Figure 8 is a schematic view of the apparatus seen from the front.
  • an apparatus comprising a portable frame 1 which has substantially the general shape of a pistol provided with a stock 2 and a cover 3 slidably mounted on the body 1, the way of a breech block of an automatic pistol.
  • the body 1 receives a movable carriage 5 having a front slot 6 and mounted to slide relative to longitudinal guides (not shown) of the body 1 which can be obtained, for example, by machining or by molding a rectilinear groove in the body 1.
  • a pusher 7 connected to a lever 8 traversed by an orifice 9 situated in an inclined plane with respect to a longitudinal rod 10 which passes freely through a hole 11 in the carriage 5.
  • the rod 10 passes longitudinally, right through, a cylinder 12 fixed to the frame 1 and constituting the fixed part of a compressed fluid distributor and containing a drawer 13 whose rod 10 is made integral in order to be driven by said drawer 13 as will be explained later.
  • the rod 10 At its front end, the rod 10 comprises a transverse stop 14 located in front of the carriage 5 and capable of driving the latter rearward when the rod 10 is driven by the slide 13 in the direction of its retraction.
  • the lever 8 is subjected to the action of lateral springs 15 (figurel) in order to be constantly urged towards its active position as shown in FIGS. 2 to 4 and which corresponds to an arc effect buttoning on the rod 10, so that it drives the lever 8 and consequently the pusher 7 when said rod 10 is driven by the slide 13 in the direction of its advance.
  • lateral springs 15 (figurel) in order to be constantly urged towards its active position as shown in FIGS. 2 to 4 and which corresponds to an arc effect buttoning on the rod 10, so that it drives the lever 8 and consequently the pusher 7 when said rod 10 is driven by the slide 13 in the direction of its advance.
  • the lateral springs 15 are fixed towards the front to buttons 16 secured to the body 1 and to the lever 8 by buttons 17.
  • the cover 3 is traversed by longitudinal side slots 18 through which the buttons 17 are visible and can thus be observed by the user as will be explained below.
  • the cover 3 internally carries a hook 20 located at one end of a lever 21 whose opposite end constitutes (or carries) a key 22.
  • the lever 21 is. Pivotally mounted on a median axis 23 and is biased by a blade spring 24.
  • the hook 20 is placed in front of and opposite one of the bouto ⁇ ss 17 serving as attachment points for the springs 15, so that the hook 20 meets the button 17 when the cover 3 is pulled back.
  • Key 22 is placed opposite an opening 3a of the cover 3 to be ac ⁇ cessible from the outside.
  • the butt 2 is hollow and can receive a cylinder 26 of compressed gas (air, nitrogen, carbon dioxide, etc.) capable of cooperating with a striker tip 27 of any type known by ensuring the opening of a seal that the bottle 26 comprises, and communicating by a circuit also of any known type and which may include a regulator 28 to reach the cylinder 12 by a control member 29 provided with a control button 30 located at the location of the trigger of this that could be a pistol having the same external shape as the device.
  • compressed gas air, nitrogen, carbon dioxide, etc.
  • the device is assumed to have no syringe.
  • the hood 3 is pulled backwards, like an automatic pistol is cocked, and the hook 20, constantly pushed by the spring leaf 24, meets the button 17 which it drives towards the rear, at the against the action of the springs 15. Furthermore, the point of application of the tensile force being situated at the level of the pivot axis of the lever 8, the latter easily slides along the rod 10.
  • Such a syringe has a body 31, a tip 32 for a short needle 33 and a piston 34 provided with an end 35.
  • the end piece 32 is placed in the slot 6, the body 31 bearing from rear to front on the carriage 5 and placed on the upper part of the body 1.
  • the end 35 of the piston 34 is located opposite the plunger 7, at a greater or lesser distance from it depending on the length of the syringe.
  • the cover 3 is brought forward and the button 22 is pressed to release the button 17.
  • the springs 15 tilt the lever 8 and pull it forward, which is without difficulty since the lever 8 is then inclined in the direction of its independence from the rod 10.
  • the pusher 7 is in permanent abutment against the end 35 due to the traction of the springs 15, so that the force of those -ci is transmitted by the lever 8 and the pusher 7 at the end 35 of the piston 34 and, thereby, to the liquid A contained in the body 31 of the syringe.
  • the apparatus is in the position shown in FIG. 2, ready for use if one has, beforehand, placed a bottle of compressed gas 26 in the butt 2, a bottle which is held against the striker tip 27 by a plug 36 screwed into a tapped hole in the butt 2 and exerting pressure on the bottom of the bottle 26 by means of a somewhat elastic piece 37.
  • the device is applied against the part of the body to be treated in the manner of a pistol held at the touching end ", then the button 30 which is pressed against the body is pressed.
  • a return spring 40 and which communicates an inlet 41 of compressed gas, preferably expanded, and an outlet 42 opening into the cylinder 12, behind the drawer 13 ( Figure 3).
  • This pressure does not have the effect of causing the product A to exit through the needle 33 because this requires a pressure greater than that which is necessary for the sliding of the carriage 5 along its guides, so that
  • the compressed fluid distributor 12 -13 can be either of the single-acting type or of the double-acting type.
  • the front wall of the cylinder 12 has vents 45 allowing the gas situated in front of the drawer 13 to exit from the cylinder 12 when the drawer 13 is moved forward and, on the contrary, d 'enter the cylinder 12 when the drawer 13 is moved rearward.
  • vents 45 do not exist.
  • a sealed chamber which receives pressurized gas from the control device 29 by a conduit 46.
  • the slide 13 of the control device 29 therefore directs the compressed gas either to the rear chamber of the cylinder 12 (conduit 42), or to the front chamber (conduit 46).
  • exhaust holes 47 and 48 respectively are provided in the device 29, according to arrangements well known in themselves. same. 5
  • the return spring 40 pushes the drawer 13 of the control device 29 which again closes the conduit 42 and thus releases the drawer 13.
  • the rod 10 returns the drawer 13 to its maximum withdrawal position shown in Figure 2; with a double-acting device, this movement is obtained by the gas pressure exerted in the chamber located at the front of the drawer 13.
  • the dose injected at each extraction of the needle 33 is adjustable.
  • this is obtained by providing, a pin 50 parallel to the rod 10 and connected to the latter by a cross member 51 disposed at the rear end of the assembly, the pin 50 being engaged in a passage 52 of the body 1 which serves as a guide so that its end 53 is located on the face of an adjustable stop 54.
  • the passage 52 has an inside diameter substantially equal to the outside diameter of the spindle 50 and. is located in the bottom of one more housing, large diameter 55 in which a spring 56 is placed interposed between the bottom of the housing 55 and the cross member 51, which is equivalent to interposing it between the body 1 and the rod 10.
  • the stopper 54 is freely mounted around a pivot
  • the rod 10 is stopped after a more or less long race which determines, as we saw above, the distance D3.
  • a wedge 60 is used here mounted sliding without friction in a slide 61 of the body 1 and secured to a control button 62 which is engaged in a slot 63 provided in the body 1 and which is accessible from the exterior thanks to the fact that it appears under the edge of the cover 3 (see FIGS. 1 and 5).
  • a spring 64 is placed in a housing 65 and acts on the wedge 60 either directly or by means of a shoe to exert on it a pressure which results in friction of said wedge 60 against the slide 61.
  • button 62 the operator presses a little on the wedge 60 to reduce (or even eliminate) the friction and to make the wedge 60 slide to the desired position. For this, a graduation (not shown)
  • button 62 as a guide to the scale, the operator moves to the right or to
  • the rod 10 drives the spindle 50 through the cross member 51 so that the end 53 of said spindle 50 is located away from the active part 54a of the stopper 54 by a distance D8 equal to the sum distances Dl and D3.
  • the spring 56 permanently biases the cross member 51 and therefore the rod 10 towards the position of complete withdrawal, so that this spring serves to return the rod 10 and allows the use of a 12-13 single-acting distributor if we want it.
  • the operator wants to carry out an injection, he acts on the button 30 to trigger the operations of extracting the needle 33 and injecting product A.
  • the gas pressure acting on the rear face of the drawer 13 is canceled and the rod 10 is brought back either by the spring 56, or by a gas pressure established on the front face of the drawer 13, as explained above. In doing so, the stop 14 integral with the rod 10 meets the front of the carriage 5 and brings the latter back.
  • the rod 10 passes through the orifice 9 of the lever 8 without exerting any action on the latter which, being free from any constraint, moves back at the same time as the load.
  • the product A exerts a pressure on the piston 34 and therefore on the part 35 and on the pusher 7 secured to the lever 8.
  • the piston 34 ef ⁇ performs a stroke greater than that of the syringe, the dif ⁇ ference of these two strokes being equal to the height of the cylindrical volume of product.
  • the piston 34 continues to move forward when the body 31 of the syringe is stopped and that the adjustment of the doses is done exclusively by acting on the movement of mechanical organs and not by means of timing which are, as we know, much less precise than the mechanical means which can be adjusted to a few fractions of a millimeter.
  • an apparatus according to the invention can be produced with very light materials and that it requires only very simple machining operations (or molding), so that the practitioner can proceed to series of injections without fatigue, without weariness and retaining all the precision necessary for his art.
  • the automatisms that can be added allow try to greatly simplify the manipulations of one operator.
  • the device according to the invention can receive syringes of all the standard dimensions encountered on the market and can also be used with different types of needles.

Abstract

The apparatus is of the type comprising a frame (1) having the general shape of a gun provided with a grip (2) and receiving a moving carriage (5) for a removable syringe (31) with needle (33) and piston (34). It is characterized in that it is fitted with a single drive element, here a fluid distributor (12-13), connected only to a pusher (7) held bearing against the piston (34) of the syringe. The kinematic connection is of the one way type. The carriage (5) is associated to a fixed stop (25) at a distance (D1) shorter that the possible total stroke (D2) of the slide (13). Thus, in the back-to-front direction, the driven pusher (7) pushes the piston (34)-syringe (31)-carriage (5) assembly by bearing on the product (A) held in the syringe. When the carriage (5) meets the stop (25) it is stopped and the syringe (31) is motionless, but the pusher (7) continues its stroke and forces the product (A) to flow through the needle (33). In the front-to-back direction, a rod (10) integral with the slide (13) brings back the carriage (5) by a stop (14) which is arranged thereon and this motion drives the syringe (31)-piston (34)-pusher (7) (the latter being now free) assembly to go simultaneously backwards. The carriage and the syringe (31) are back to their starting position while the piston (34) moves back to a slightly shorter distance which is function of the dose of product (A) pushed by said piston during the preceding back-to-front stroke.

Description

1 1
APPAREIL POUR EXECUTER DES SERIES D'INJECTIONS MEDICAMENTEUSESAPPARATUS FOR EXECUTING SERIES OF DRUG INJECTIONS
On sait qu'il existe une; méthode de traitement, thé¬ rapeutique du corps humain désignée sous le nom de "mésothérapie" qui consiste a effectuer des injections médi¬ camenteuses intra-dermiques par séries de faibles doses dans une zone du corps proche de la région à traiter. Cette méthode diffère de celle, habituel le, qui consiste ù ef¬ fectuer une seule injection volumineuse "générale", intra¬ musculaire ou sous-cutanée, dans une zone du corps indé- We know there is one; method of treatment, therapy for the human body known as "mesotherapy" which consists in carrying out medicated intra-dermal injections by series of low doses in an area of the body close to the region to be treated. This method differs from the usual one, which consists in making a single voluminous "general" injection, intramuscular or subcutaneous, in an area of the body
2 pendante de celle qui correspond à la pathologie en cause.2 pending from that corresponding to the pathology in question.
Pour mettre en oeuvre cette méthode, on peut agir manuellement en effectuant ces injections avec une seringue de type classique. 5 Toutefois, cette manière d'agir est peu commode, peu sûre et lente de sorte que l'on utilise généralement un dis¬ positif qui supporte une seringue banale et qui a une forme facilitant sa préhension, notamment la forme d'un pistolet. C'est ainsi que l'on connaît déjà des dispositifsTo implement this method, one can act manually by carrying out these injections with a syringe of conventional type. 5 However, this way of acting is inconvenient, insecure and slow so that a device is generally used which supports a common syringe and which has a shape which facilitates its gripping, in particular the shape of a pistol. This is how devices are already known.
-j Q d'injection automatique qui comprennent un support pour une seringue d'injection, des moyens d'avancée et de retrait de la seringue à chaque injection et des moyens de déplacement du tiroir de la seringue par rapport au corps de celle-ci.- j Q automatic injection which include a support for an injection syringe, means for advancing and withdrawing the syringe with each injection and means for moving the drawer of the syringe relative to the body thereof .
On connaît également des dispositifs en forme deThere are also known devices in the form of
15 pistolet que l'on tient d'une main par la crosse munie d'une gâchette, l'usager, en appuyant sur celle-ci, pouvant provo¬ quer : le déplacement d'une aiguille pour la faire saillir en avant du dispositif afin de la faire pénétrer dans la chair et sous la peau, l'immobilisation de l'aiguille,15 pistol which is held in one hand by the butt end fitted with a trigger, the user, by pressing on it, being able to cause: the movement of a needle to make it protrude in front of the device in order to make it penetrate into the flesh and under the skin, immobilization of the needle,
20 l'injection du liquide contenu dans la seringue jusqu'à ce que la quantité prévue ait été injectée, et enfin la rentrée de l'aiguille et ainsi de suite.20 injection of the liquid contained in the syringe until the intended amount has been injected, and finally the retraction of the needle and so on.
On connaît. également le moyen qui consiste à utili¬ ser des moyens moteurs différents d'une part pour l'avancéeWe know. also the means which consists in using different driving means on the one hand for the advancement
23 de la seringue et de l'aiguille et d'autre part pour le tiroir.23 of the syringe and needle and on the other hand for the drawer.
Le document FR A-78/01.459 décrit un mécanisme démultiplicateur d'effort pour la commande d'une seringue. La structure du mécanisme est en soi connue puisqu'elleDocument FR A-78 / 01.459 describes a force reduction mechanism for controlling a syringe. The structure of the mechanism is known per se since it
30- comprend une tige 3 sur laquelle est engagé un organe désaxé IT. Dans un sens de déplacement l'organe II est en position de coincement et pousse la tige 3 tandis que dans le sens opposé l'organe II est libéré et revient à sa position pri¬ mitive sans solliciter la tige 3. L'invention nécessite bien la présence d'un méca¬ nisme à sens unique mais il peut être de tout type connu. Le document FR-A-78/01.459 n'est donc pas pertinent et ne sug¬ gère en rien la coordination des mouvements du piston d'une part et du corps de la seringue d'autre part.30- comprises a rod 3 on which is engaged an offset axis IT. In a direction of movement the member II is in the wedging position and pushes the rod 3 while in the opposite direction the member II is released and returns to its primitive position without stressing the rod 3. The invention does indeed require the presence of a one-way mechanism but it can be of any known type. Document FR-A-78 / 01.459 is therefore irrelevant and in no way suggests coordination of the movements of the plunger on the one hand and of the body of the syringe on the other.
Le document DE-A-3.026.318 décrit un dispositif auquel une seringue complète doit tre associée. Mais, contrairement à l'invention, un mécanisme . en l'occurrence un ressort 20) agit en permanence sur le piston et sur le corps de seringue dans le sens de l'extraction de l'aiguille et de l'injection de liquide. Cette action n'est interrompue que par un frein à frottement 31 qui est neutralisé par l'opérateur agissant sur la poignée. Il suffit de garder la poignée 7 enfoncée pour que tout le liquide contenu dans la seringue soit injecté.Document DE-A-3.026.318 describes a device with which a complete syringe must be associated. But, unlike the invention, a mechanism. in this case a spring 20) acts permanently on the piston and on the syringe body in the direction of extraction of the needle and injection of liquid. This action is only interrupted by a friction brake 31 which is neutralized by the operator acting on the handle. Just keep the handle 7 pressed so that all the liquid contained in the syringe is injected.
Ce dispositif ne suggère pas non plus la solution de l'invention qui résout le problème de réaliser, à partir d'une seule seringue, une pluralité d'injections successives et dosées. I*a présente invention concerne un dispositif du genre de ceux décrits ci-dessus mais qui ne comporte qu'un seul élément moteur et un nombre de pièces restreint, de sorte que l'ensemble est d'une grande simplicité de cons¬ truction et, par conséquent, peut être réalisé sous un poids très faible, facilitant son usage.This device also does not suggest the solution of the invention which solves the problem of carrying out, from a single syringe, a plurality of successive and metered injections. I * a present invention relates to a device of the kind described above but which has only one motor element and a limited number of parts, so that the assembly is very simple to construct and , therefore, can be made under a very low weight, facilitating its use.
A cette fin, l'invention a pour objet un appareil pour exécuter des injections de liquides dans la chair d'êtres vivants, humains et animaux, du type comprenant d'une part un bâti portatif qui a, de préférence, la forme générale d'un pistolet et qui reçoit un chariot mobile longitudinalement pour une seringue amovible à aiguille et à tiroir, ainsi qu'un poussoir mobile longitudinalement et destiné à agir sur le tiroir de la seringue et, d'autre part, des moyens moteurs correspondant au déplacement du chariot et au déplacement du poussoir, caractérisé en ce que les moyens moteurs sont reliés au poussoir par un mécanisme à sens unique de tout type connu pour assurer le déplacement du poussoir dans un premier sens correspondant à i'enfonce- ment du tiroir dans la seringue et pour le laisser libre dans le sens opposé, tandis que le chariot est libre dans ledit premier sens et soillicité dans ledit sens opposé, une butée solidaire du bâti étant placée sur le parcours du chariot en avant et à une distance de ce dernier inférieure à la course du poussoir, des moyens étant de préférence prévus pour régler la longueur de ladite course.To this end, the subject of the invention is an apparatus for carrying out injections of liquids into the flesh of living beings, humans and animals, of the type comprising on the one hand a portable frame which preferably has the general shape of '' a pistol and which receives a longitudinally movable carriage for a removable syringe with needle and drawer, as well as a longitudinally movable plunger intended to act on the syringe drawer and, on the other hand, motor means corresponding to the displacement of carriage and movement of the pusher, characterized in that the drive means are connected to the pusher by a one-way mechanism of any known type for ensuring the movement of the pusher in a first direction corresponding to the insertion of the drawer into the syringe and to leave it free in the opposite direction, while the carriage is free in said first direction and slack in said opposite direction, a stop integral with the frame being placed on the path of the carriage in front and at a distance from the latter less than the stroke of the pusher, means being preferably provided for adjusting the length of said stroke.
Selon d'autres caractéristiques de l'invention :According to other characteristics of the invention:
- le chariot est sollicité dans ledit sens opposé soit par les moyens moteurs qui, alors, sont du type à mou- vement réversible, soit par un ressort de rappel;the carriage is biased in said opposite direction either by the motor means which, then, are of the reversible movement type, or by a return spring;
- la partie mobile des moyens moteurs est en prise avec une tige longitudinale 1 Lsse traversant un orifice prévu dans un plan d'un levier, oblique par rapport à l'axe de la tige, levier qui est solidaire du poussoir et qui est sollicité élastiquement vers une position dite active dans laquelle il s'oppose par arc-boutement à la libre transla¬ tion de la tige dans l'orifice afin d'être entraîné par ladite tige en déplacement dans un sens correspondant à l'enfoncement du tiroir dans la seringue, tandis que dans son sens de déplacement opposé, la tige traverse librement l'orifice et laisse donc le levier à l'emplacement qu'il occupe, cet ensemble constituant un mécanisme à sens unique pour assurer le déplacement du poussoir dans un premier sens et pour le laisser libre dans le sens opposé; - la tige a une longueur telle que son extrémité avant est située devant le chariot et porte une butée desti¬ née à entrer en contact avec ledit chariot mais seulement dans le sens correspondant au recul du chariot et de la seringue qu'il porte, la tige devant être entraînée dans ce 5 sens, soit par les moyens moteurs, soit par un ressort de rappel ;- The movable part of the drive means is engaged with a longitudinal rod 1 Lsse passing through an orifice provided in a plane of a lever, oblique to the axis of the rod, lever which is integral with the pusher and which is resiliently biased towards a so-called active position in which it opposes the free transla¬ tion of the rod in the orifice in order to be driven by said rod moving in a direction corresponding to the insertion of the drawer into the syringe, while in its opposite direction of movement, the rod freely crosses the orifice and therefore leaves the lever in the location which it occupies, this assembly constituting a one-way mechanism for ensuring the displacement of the plunger in a first direction and to leave it free in the opposite direction; the rod has a length such that its front end is situated in front of the carriage and carries a stop intended for coming into contact with said carriage but only in the direction corresponding to the retreat of the carriage and of the syringe which it carries, the rod to be drawn into this 5 directions, either by the motor means, or by a return spring;
- l'appareil comprend un capot monté coulissant longitudinalement et muni intérieurement d'un crochet éclipsable placé dans l'alignement du poussoir ou d'une pièce qui en est solidaire afin que le déplacement du capot puisse être transmis audit poussoir dans le sens avant- arrière mais non dans le sens arrière-avant;the device comprises a cover mounted to slide longitudinally and fitted internally with an eclipsable hook placed in alignment with the pusher or with a part which is integral therewith so that the movement of the cover can be transmitted to said pusher in the forward direction; rear but not in the rear-front direction;
- la tige est solidaire d'une butée sur le parcours de laquelle se trouve un butoir d'arrêt dont la position est ajustable, cet ensemble constituant ainsi des moyens pour régler la longueur de la course du poussoir;- The rod is integral with a stop on the path of which is a stopper whose position is adjustable, this assembly thus constituting means for adjusting the length of the stroke of the pusher;
- la butée est constituée par l'extrémité d'une broche qui est parallèle à la tige et qui est sollicitée par un ressort constituant le ressort de rappel de la tige;- The stop is formed by the end of a pin which is parallel to the rod and which is biased by a spring constituting the return spring of the rod;
- les moyens moteurs sont constitués par un distri¬ buteur à fluide comprimé comportant un cylindre fixé au bâti et une partie mobile formée par un tiroir monté coulissant dans le cylindre et reliée cinématiquement au poussoir; - le tiroir est solidaire de la tige;- The drive means are constituted by a compressed fluid distributor with a cylinder fixed to the frame and a movable part formed by a drawer mounted to slide in the cylinder and kinematically connected to the pusher; - the drawer is integral with the rod;
- le bâti comporte une crosse dans laquelle se trouve un mécanisme de contrôle de l'arrivée de fluide au distributeur, ce mécanisme étant commandé par un organe tel qu'une gâchette ou détente, un bouton poussoir et analogue; - le fluide comprimé est stocké dans une bouteille interchangeable logée dans la crosse et dont un orifice est mis en communication avec le mécanisme de contrôle;- The frame comprises a stock in which there is a mechanism for controlling the arrival of fluid to the distributor, this mechanism being controlled by a member such as a trigger or trigger, a push button and the like; - The compressed fluid is stored in an interchangeable bottle housed in the stock and an orifice is placed in communication with the control mechanism;
L'invention sera mieux comprise par la description détaillé ci-aprés faite en référence au dessin annexé. Bien entendu, la description et le dessin ne sont donnés qu'à titre d'exemple indicatif et non limitatif.The invention will be better understood from the detailed description below made with reference to the accompanying drawing. Of course, the description and the drawing are given only by way of an indicative and nonlimiting example.
La figure 1 est une vue schématique extérieure d'un appareil conforme à l'invention dont un caôt de protection est représenté en position entr' ouverte.
Figure imgf000008_0001
Figure 1 is a schematic exterior view of an apparatus according to the invention, a protective shell is shown in the open position.
Figure imgf000008_0001
La figure 2 est une vue schématique en coupe longi¬ tudinale de l'appareil de la figure 1 dont le capot est représenté en position de fermeture, l'appareil étant prêt à l'usage mais non encore en fonctionnement. La figure 3 est une vue schématique en coupe d'un appareil conforme à l'invention, dont on a retiré le capot pour plus de clarté et qui est en position d'extraction de l'aiguille, position qui précède immédiatement l'injection proprement dite. La figure 4 est une vue schématique en coupe du même appareil représenté dans la position que ces éléments oc¬ cupent en fin d'injection.Figure 2 is a schematic view in longitudinal section of the apparatus of Figure 1, the cover is shown in the closed position, the apparatus being ready for use but not yet in operation. Figure 3 is a schematic sectional view of an apparatus according to the invention, from which the cover has been removed for clarity and which is in the needle extraction position, position which immediately precedes the injection properly said. Figure 4 is a schematic sectional view of the same device shown in the position that these elements oc¬ cup at the end of injection.
Les figures 5 et 6 sont des vues schématiques par¬ tielles en coupes respectivement transversale et horizontale illustrant un moyen permettant la mise en place aisée d'une seringue;Figures 5 and 6 are partial schematic views in section respectively transverse and horizontal illustrating a means for easy placement of a syringe;
La figure 7 est une vue partielle faite en coupe selon la ligne VII-VII de la figure 4.FIG. 7 is a partial view made in section along the line VII-VII of FIG. 4.
La figure 8 est une vue schématique de l'appareil vue de face.Figure 8 is a schematic view of the apparatus seen from the front.
En se reportant au dessin, on voit un appareil conforme à l'invention comprenant un bâti portatif 1 qui a sensiblement la forme générale d'un pistolet muni d'une crosse 2 et d'un capot 3 monté coulissant sur le corps 1, à la manière d'un bloc-culasse d'un pistolet automatique.Referring to the drawing, there is shown an apparatus according to the invention comprising a portable frame 1 which has substantially the general shape of a pistol provided with a stock 2 and a cover 3 slidably mounted on the body 1, the way of a breech block of an automatic pistol.
Le corps 1 reçoit un chariot mobile 5 présentant un créneau avant 6 et monté coulissant par rapport à des guides longitudinaux (non représentés) du corps 1 qui peuvent être obtenus, par exemple, par usinage ou par moulage d'une rai- nure rectiligne dans le corps 1.The body 1 receives a movable carriage 5 having a front slot 6 and mounted to slide relative to longitudinal guides (not shown) of the body 1 which can be obtained, for example, by machining or by molding a rectilinear groove in the body 1.
En opposition au chariot 5, se trouve un poussoir 7 relié à un levier 8 traversé d'un orifice 9 situé dans un plan incliné par rapport à une tige longitudinale 10 qui traverse librement un trou 11 du chariot 5. La tige 10 traverse longitudinalement, de part en part, un cylindre 12 fixé au bâti 1 et constituant la partie fixe d'un distributeur à fluide comprimé et contenant un tiroir 13 dont la tige 10 est rendue solidaire afin d'être entraînée par ledit tiroir 13 comme on l'expliquera p lus loin.In opposition to the carriage 5, there is a pusher 7 connected to a lever 8 traversed by an orifice 9 situated in an inclined plane with respect to a longitudinal rod 10 which passes freely through a hole 11 in the carriage 5. The rod 10 passes longitudinally, right through, a cylinder 12 fixed to the frame 1 and constituting the fixed part of a compressed fluid distributor and containing a drawer 13 whose rod 10 is made integral in order to be driven by said drawer 13 as will be explained later.
A son extrémité avant, la tige 10 comprend une butée transversale 14 située en avant du chariot 5 et susceptible d'entrainer celui-ci vers l'arrière lorsque la tige 10 est entrainée par la tiroir 13 dans le sens de son recul.At its front end, the rod 10 comprises a transverse stop 14 located in front of the carriage 5 and capable of driving the latter rearward when the rod 10 is driven by the slide 13 in the direction of its retraction.
Le levier 8 est soumis à l'action de ressorts laté¬ raux 15 (figurel) afin d'être constamment sollicité vers sa position active telle qu'elle est représenté sur les figures 2 à 4 et qui correspond à un effet d' arc-boutement sur la tige 10, afin que celle-ci entraine le levier 8 et par voie de conséquence le poussoir 7 lorsque ladite tige 10 est entrainée par le tiroir 13 dans la direction de son avancée.The lever 8 is subjected to the action of lateral springs 15 (figurel) in order to be constantly urged towards its active position as shown in FIGS. 2 to 4 and which corresponds to an arc effect buttoning on the rod 10, so that it drives the lever 8 and consequently the pusher 7 when said rod 10 is driven by the slide 13 in the direction of its advance.
Les ressorts latéraux 15 sont fixés vers l'avant à des boutons 16 solidaires du corps 1 et sur le levier 8 par des boutons 17.The lateral springs 15 are fixed towards the front to buttons 16 secured to the body 1 and to the lever 8 by buttons 17.
Le capot 3 est traversé de fentes longi udinales latérales 18 par lesquelles les boutons 17 sont visibles et peuvent ainsi être observés par l'usager comme on l'expliquera plus loin.The cover 3 is traversed by longitudinal side slots 18 through which the buttons 17 are visible and can thus be observed by the user as will be explained below.
Le capot 3 porte intéri urement un crochet 20 situé à une extrémité d'un levier 21 dont l'extrémité opposée constitue (ou porte) une touche 22. Le levier 21 est .monté pivotant sur un axe médian 23 et est sollicité par une lame de ressort 24.The cover 3 internally carries a hook 20 located at one end of a lever 21 whose opposite end constitutes (or carries) a key 22. The lever 21 is. Pivotally mounted on a median axis 23 and is biased by a blade spring 24.
Le crochet 20 est placé en avant et en regard de l'un des boutoπss 17 servant de points d'accrochage aux ressorts 15, de sorte que le crochet 20 rencontre le bouton 17 lorsque le capot 3 est tiré en arrière. La touche 22 est placé en face d'une ouverture 3a du capot 3 pour être ac¬ cessible de l'extérieur.The hook 20 is placed in front of and opposite one of the boutoπss 17 serving as attachment points for the springs 15, so that the hook 20 meets the button 17 when the cover 3 is pulled back. Key 22 is placed opposite an opening 3a of the cover 3 to be ac¬ cessible from the outside.
Au-devant du chariot 5, se trouve une butée 25 soli¬ daire du corps 1 et par laquelle le chariot 5 est arrêté lorsque celui-ci est sollicité vers l'avant.In front of the carriage 5, there is a stop 25 soli¬ dary of the body 1 and by which the carriage 5 is stopped when the latter is biased forward.
La crosse 2 est creuse et peut recevoir une bouteil¬ le 26 de gaz comprimé (air, azote, gaz carbonique etc.) susceptible de coopérer avec un embout à percuteur 27 de tout type connu par assurer l'ouverture d'un opercule que la bouteille 26 comporte, et communiquant par un circuit lui aussi de tout type connu et pouvant comporter un détendeur 28 pour aboutir au cylindre 12 par un organe de contrôle 29 munie d'un bouton de commande 30 situé à l'emplacement de la détente de ce que pourrait être un pistolet ayant la même forme extérieure que l'appareil.The butt 2 is hollow and can receive a cylinder 26 of compressed gas (air, nitrogen, carbon dioxide, etc.) capable of cooperating with a striker tip 27 of any type known by ensuring the opening of a seal that the bottle 26 comprises, and communicating by a circuit also of any known type and which may include a regulator 28 to reach the cylinder 12 by a control member 29 provided with a control button 30 located at the location of the trigger of this that could be a pistol having the same external shape as the device.
Le fonctionnement de l'appareil qui vient d'être décrit est le suivant:The operation of the device which has just been described is as follows:
L'appareil est supposé démuni de seringue. On tire le capot 3 vers l'arrière, comme on arme un pistolet automa- tique, et le crochet 20, poussé en permanence par la lame de ressort 24, rencontre le bouton 17 qu'il entraine vers l'arrière, à l'encontre de l'action des ressorts 15. En outre, le point d'application de l'effort de traction étant situé au niveau de l'axe do pivotement du levier 8, celui-ci glisse facilement le long de la tige 10.The device is assumed to have no syringe. The hood 3 is pulled backwards, like an automatic pistol is cocked, and the hook 20, constantly pushed by the spring leaf 24, meets the button 17 which it drives towards the rear, at the against the action of the springs 15. Furthermore, the point of application of the tensile force being situated at the level of the pivot axis of the lever 8, the latter easily slides along the rod 10.
Quand le capot est arrivé à sa position extrême ar¬ rière, il s'y maintient, soit parce que les frottements entre lui et ses guides ont une valeur supérieure à celle de la force de traction des ressorts 15, soit au moyen d'un organe d'arrêt de tout type connu tel qu'un cliquet. On peut ainsi, avec une seule main, tenir l'appareil ouvert et avec la main libre, on saisit une seringue de tout type connu contenant le produit à injecter.When the cover has reached its extreme rear position, it remains there, either because the friction between it and its guides has a value greater than that of the tensile force of the springs 15, or by means of a stop device of any known type such as a pawl. We can thus, with one hand, hold the device open and with our free hand, we grab a syringe of any known type containing the product to be injected.
Une telle seringue présente un corps 31, un embout 32 pour une courte aiguille 33 et un piston 34 muni d'une extrémité 35. Pour la mise en place de la seringue, on pose l'embout 32 dans le créneau 6, le corps 31 en appui d'arrière en avant sur le chariot 5 et posé sur la partie supérieure la du corps 1. L'extrémité 35 du piston 34 se trouve en regard du poussoir 7, à une distance plus ou moins grande de lui selon la longueur de la seringue. On ramène le capot 3 vers l'avant et l'on appuie sur la touche 22 pour libérer le bouton 17. Les ressorts 15 font basculer le levier 8 et le tirent vers l'avant, ce qui se fait sans dif¬ ficulté puisque le levier 8 est alors incliné dans le sens de son indépendance vis-à-vis de la tige 10. Le poussoir 7 est en appui permanent contre l'extrémité 35 du fait de la traction des ressorts 15, de sorte que l'effort de ceux-ci est transmis par le levier 8 et le poussoir 7 à l'extrémité 35 du piston 34 et, par là, au liquide A contenu dans le corps 31 de la seringue.Such a syringe has a body 31, a tip 32 for a short needle 33 and a piston 34 provided with an end 35. For the fitting of the syringe, the end piece 32 is placed in the slot 6, the body 31 bearing from rear to front on the carriage 5 and placed on the upper part of the body 1. The end 35 of the piston 34 is located opposite the plunger 7, at a greater or lesser distance from it depending on the length of the syringe. The cover 3 is brought forward and the button 22 is pressed to release the button 17. The springs 15 tilt the lever 8 and pull it forward, which is without difficulty since the lever 8 is then inclined in the direction of its independence from the rod 10. The pusher 7 is in permanent abutment against the end 35 due to the traction of the springs 15, so that the force of those -ci is transmitted by the lever 8 and the pusher 7 at the end 35 of the piston 34 and, thereby, to the liquid A contained in the body 31 of the syringe.
L'appareil se trouve dans la position représentée sur la figure 2, prêt à l'usage si l'on a bien, au préa¬ lable, placé une bouteille de gaz comprimé 26 dans la crosse 2, bouteille qui est maintenue contre l'embout à percuteur 27 par un bouchon 36 vissé dans un trou taraudé de la crosse 2 et exerçant une pression sur le fond de la bouteille 26 par l'in ermédiaire d'une pièce un peu élastique 37.The apparatus is in the position shown in FIG. 2, ready for use if one has, beforehand, placed a bottle of compressed gas 26 in the butt 2, a bottle which is held against the striker tip 27 by a plug 36 screwed into a tapped hole in the butt 2 and exerting pressure on the bottom of the bottle 26 by means of a somewhat elastic piece 37.
Pour procéder à une injection, on applique l'ap¬ pareil contre la partie du corps à traiter à la manière d'un pistolet tenu bout touchant" puis l'on appuie sur le bouton 30 qui s'enfonce à l' encontre d'un ressort de rappel 40 et qui met en communication une entrée 41 de gaz comprimé, de préférence détendu, et une sortie 42 débouchant dans le cylindre 12, à l'arrière du tiroir 13 (figure 3).To carry out an injection, the device is applied against the part of the body to be treated in the manner of a pistol held at the touching end ", then the button 30 which is pressed against the body is pressed. a return spring 40 and which communicates an inlet 41 of compressed gas, preferably expanded, and an outlet 42 opening into the cylinder 12, behind the drawer 13 (Figure 3).
Le gaz comprimé pousse ainsi le tiroir 13 qui entraîne la tige 10, celle-ci entraînant à son tour le levier 8 qui, dans le sens arrière-avant de la tige 10, est 10 arc-bouté contre elle sous l'action des ressorts 15.The compressed gas thus pushes the slide 13 which drives the rod 10, the latter in turn driving the lever 8 which, in the rear-front direction of the rod 10, is 10 braced against it under the action of springs 15.
La pression de gaz exercée contre le tiroir 13 est ainsi transmise au poussoir 7 qui agit sur la partie 35 du piston 34, lequel exerce à son tour une pression sur le 5 produit A que contient lo corps 31 de la seringue.The gas pressure exerted against the slide 13 is thus transmitted to the pusher 7 which acts on the part 35 of the piston 34, which in turn exerts pressure on the product A which is contained in the body 31 of the syringe.
Cette pression n'a pas pour effet de provoquer la sortie du produit A par l'aiguille 33 car cela nécessite une pression supérieure à celle qui est nécessaire au coulis- sement du chariot 5 le long de ses guides, de sorte queThis pressure does not have the effect of causing the product A to exit through the needle 33 because this requires a pressure greater than that which is necessary for the sliding of the carriage 5 along its guides, so that
10. l'ensemble -tiroir 13 - tige 10 - levier 8 - poussoir 7 - partie 35 du piston 34 - corps de seringue 31 - chariot 5> se déplace pour passer de la position représentée sur la figure 2 à celle représentée sur la figure 3 et qui corres¬ pond à la saillie de l'aiguille 33 hors de la face avant lb10. the assembly-drawer 13 - rod 10 - lever 8 - pusher 7 - part 35 of the piston 34 - syringe body 31 - carriage 5> moves from the position shown in Figure 2 to that shown in Figure 3 and which corresponds to the projection of the needle 33 outside the front face 1b
15 ou "canon" do l'appareil, laquelle, bien entendu, est pourvue d'une ouverture le en regard de l'aiguille 33.15 or "barrel" of the apparatus, which, of course, is provided with an opening opposite the needle 33.
On note que le mouvement vers l'avant de l'ensemble d'éléments ci-dessus s'effectue sous l'effet d'une pression et non sous l'effet de chocs.Note that the forward movement of the above set of elements is effected by pressure and not by impact.
20 En comparant les figures 2 et 3, on constate ainsi que le tiroir 13 a parcouru vers l'avant une distance égale à celle, Dl, qui sépare l'avant du chariot 5 de la butée 25 lorsque ledit chariot 5 est situé dans sa position de retrait total, cette distance Dl étant inférieure à la20 By comparing FIGS. 2 and 3, it can thus be seen that the slide 13 has traveled forwards a distance equal to that, Dl, which separates the front of the carriage 5 from the stop 25 when said carriage 5 is located in its position of total withdrawal, this distance Dl being less than the
25 course complète D2 que peut parcourir le tiroir 13 dans le cylindre 12.25 full stroke D2 which the slide 13 can travel in the cylinder 12.
Lorsque le chariot 5 rencontre la butée 25, il s'ar¬ rête, comme cela est représenté sur la figure 3, et se trouve ainsi dans une position bien déterminée correspondantWhen the carriage 5 meets the stop 25, it stops, as shown in FIG. 3, and is thus in a correspondingly determined position
30 exactement au dépassement voulu pour l'aiguille 33. Mais, comme dit ci-dessus, la course D2 du tiroir 13 n'est pas terminée et le gaz comprimé continue d'agir sur ce tiroir 13 et par conséquent, sur la tige 10 qui coulisse librement dans le trou 11 du chariot 5 arrêté et qui continue d'entraîner 1 130 exactly at the desired overshoot for the needle 33. But, as said above, the stroke D2 of the slide 13 is not finished and the compressed gas continues to act on this slide 13 and therefore on the rod 10 which slides freely in the hole 11 of the stopped carriage 5 and which continues to drive 1 1
le levier 8 par arc-boutement et, donc, le poussoir 7 et le piston 34. Comme le chariot 5 est bloqué positivement par la butée 25, la pression du gaz comprimé sur le tiroir 13 est transmise exclusivement au produit A que contient le corps 31 de la seringue, de sorte que ce produit A est contraint de s'écouler par le passage de l'aiguille 33, ce que l'on a schématisé sur la figure 4.the lever 8 by bracing and, therefore, the pusher 7 and the piston 34. As the carriage 5 is positively blocked by the stop 25, the pressure of the compressed gas on the slide 13 is transmitted exclusively to the product A contained in the body 31 of the syringe, so that this product A is forced to flow through the passage of the needle 33, which is shown diagrammatically in FIG. 4.
En comparant les figures 3 et 4, on voit qu'à la fin de la course du chariot 5, la distance Dl est parcourue en totalité et qu'il reste au piston 34 à parcourir une dis¬ tance D3 correspondant à la dose de produit A devant être injectée.By comparing FIGS. 3 and 4, it can be seen that at the end of the stroke of the carriage 5, the distance Dl is covered in full and that the piston 34 remains to travel a distance D3 corresponding to the dose of product To be injected.
Le tiroir 13 , quant à lui, devrait encore parcourir une distance D4 pour arriver à la fin de sa course totale théorique D2.The slide 13, meanwhile, should still travel a distance D4 to reach the end of its theoretical total travel D2.
Sur la figure 4, on volt que la distance D3 a été parcourue en totalité et que la tige 10 a parcouru une dis¬ tance D5 en avant du chariot 5 tandis qu'il reste encore une distance D6 en avant du tiroir 13 . Le distributeur à fluide comprimé 12 -13 peut être soit du type à simple effet soit du- type à double effet.In FIG. 4, it can be seen that the distance D3 has been traveled in full and that the rod 10 has traveled a distance D5 in front of the carriage 5 while there is still a distance D6 in front of the drawer 13. The compressed fluid distributor 12 -13 can be either of the single-acting type or of the double-acting type.
Lorsqu'il est du type à simple effet, la paroi avant du cylindre 12 comporte des évents 45 permettant au gaz situé en avant du tiroir 13 de sortir du cylindre 12 lorsque le tiroir 13 est déplacé vers l'avant et, au contraire, d'entrer dans le cylindre 12 lorsque le tiroir 13 est déplacé vers l'arrière.When it is of the single-acting type, the front wall of the cylinder 12 has vents 45 allowing the gas situated in front of the drawer 13 to exit from the cylinder 12 when the drawer 13 is moved forward and, on the contrary, d 'enter the cylinder 12 when the drawer 13 is moved rearward.
Pour obtenir le mouvement de recul du tiroir 13 et, donc, de la tige 10, il faut alors prévoir un ressort de rappel dont les points d'application sont situés respecti¬ vement sur le corps 1 et sur la tige 10.To obtain the recoil movement of the drawer 13 and, therefore, of the rod 10, it is then necessary to provide a return spring whose points of application are located respecti¬ vely on the body 1 and on the rod 10.
Ce montage est très simple et à la portée de l'homme de métier, de sorte que l'on ne le décrira pas plus en détai1. 12This assembly is very simple and within the reach of those skilled in the art, so that it will not be described in more detail. 12
Lorsque le distributeur à fluide comprimé 12-13 est du type à double effet, les évents 45 n'existent pas. A l'avant du cylindre se trouve alors une chambre étanche qui reçoit du gaz sous pression à partir du dispositif de contrôle 29 par un conduit 46.When the compressed fluid distributor 12-13 is of the double-acting type, the vents 45 do not exist. At the front of the cylinder is then a sealed chamber which receives pressurized gas from the control device 29 by a conduit 46.
Le tiroir 13 du dispositif de contrôle 29 dirige donc le gaz comprimé soit vers la chambre arrière du cy¬ lindre 12 (conduit 42), soit vers la chambre avant (conduit 46) . 0 Pour évacuer le gaz qui se trouve soit dans la cham¬ bre avant, soit dans la chambre arrière, des trous d'échap¬ pement respectivement 47 et 48 sont prévus dans le dispo ¬ sitif 29, selon des dispositions bien connues en elles- mêmes. 5 Quelle que soit la solution adoptée, lorsque l'opé¬ rateur relâche sa pression sur le bouton 30, le ressort de rappel 40 repousse le tiroir 13 du dispositif de contrôle 29 qui obture à nouveau le conduit 42 et libère ainsi le tiroir 13 . 0 Avec un ressort de rappel^ la tige 10 ramène le tiroir 13 à sa position de retrait maximum représentée sur la figure 2; avec un disposit if à double effet, ce mouvement est obtenu par la pression de gaz qui s'exerce dans la chambre située à l'avant du tiroir 13 . 5 On a décrit ci-dessus un circuit de gaz comprimé de type très simple, mais l'homme de métier sait établir des circuits pneumatiques plus élaborés, munis de tous les composants voulus et de dimensions compatibles avec l'ap¬ pareil conforme à l'invention pour prévoir des compléments Q permettant d'obtenir un fonctionnement plus ou momins auto¬ matique et permettant, notamment, d'obtenir successi ement l'extraction de l'aiguille 33, l'injection de produit A, la rentrée de l'ensemble, une nouvelle extraction de l'aiguille 33 suivie d'une nouvelle injection de produit A, etc. en ne demandant à l'opérateur que de donner une impulsion au bou¬ ton poussoir 30, en l'enfonçant en début de cycle pour le faire débuter et en fin de cycle pour l'arrêter. On peut, aussi, prévoir un fonctionnement cyclique automatique en demandant à l'opérateur de maintenir le bouton 30 enfoncé.The slide 13 of the control device 29 therefore directs the compressed gas either to the rear chamber of the cylinder 12 (conduit 42), or to the front chamber (conduit 46). 0 To evacuate the gas which is either in the front chamber or in the rear chamber, exhaust holes 47 and 48 respectively are provided in the device 29, according to arrangements well known in themselves. same. 5 Whatever the solution adopted, when the operator releases his pressure on the button 30, the return spring 40 pushes the drawer 13 of the control device 29 which again closes the conduit 42 and thus releases the drawer 13. 0 With a return spring ^ the rod 10 returns the drawer 13 to its maximum withdrawal position shown in Figure 2; with a double-acting device, this movement is obtained by the gas pressure exerted in the chamber located at the front of the drawer 13. 5 A very simple type compressed gas circuit has been described above, but those skilled in the art know how to establish more elaborate pneumatic circuits, provided with all the desired components and of dimensions compatible with the device according to the invention. 'invention to provide additional Q to obtain more or less automatic operation mom¬ and allowing, in particular, to successively obtain the extraction of the needle 33, the injection of product A, the reentry of the together, a new extraction of the needle 33 followed by a new injection of product A, etc. in no asking the operator to give an impulse to the push button 30, pressing it at the start of the cycle to start it and at the end of the cycle to stop it. It is also possible to provide for automatic cyclical operation by asking the operator to keep the button 30 pressed.
Selon une caractéristique de l'invention, la dose injectée à chaque extraction de l'aiguille 33 est réglable.According to a characteristic of the invention, the dose injected at each extraction of the needle 33 is adjustable.
Selon le mode de réalisation représenté, cela est obtenu en prévoyant, une broche 50 parallèle à la tige 10 et reliée à celle-ci par une traverse 51 disposée à l'extrémité arrière de l'ensemble, la broche 50 étant engagée dans un passage 52 du corps 1 qui lui sert de guide pour que son extrémité 53 soit située on regard d'un butoir réglable 54.According to the embodiment shown, this is obtained by providing, a pin 50 parallel to the rod 10 and connected to the latter by a cross member 51 disposed at the rear end of the assembly, the pin 50 being engaged in a passage 52 of the body 1 which serves as a guide so that its end 53 is located on the face of an adjustable stop 54.
Le passage 52 a un diamètre intérieur sensiblement égal au diamètre extérieur de la broche 50 et. se trouve dans le fond d'un logement de plus, grand diamètre 55 dans lequel on place un ressort 56 interposé entre le fond du logement 55 et la traverse 51, ce qui équivaut à l'interposer entre le corps 1 et la tige 10. Le butoir 54 est monté librement autour d'un pivotThe passage 52 has an inside diameter substantially equal to the outside diameter of the spindle 50 and. is located in the bottom of one more housing, large diameter 55 in which a spring 56 is placed interposed between the bottom of the housing 55 and the cross member 51, which is equivalent to interposing it between the body 1 and the rod 10. The stopper 54 is freely mounted around a pivot
57 dont l'axe est perpendiculai e à celui de la broche 50, de sorte que le pivotement du butoir 54. dans un sens ou dans l'autre a pour effet de placer sa partie active 54a plus ou moins près du débouché du passage* 52 et, donc, de limiter plus ou moins l'enf ncement de la broche 50 dans ledit pas¬ sage 52, cela revenant à limiter plus ou moins l'en ncement de la broche 50 dans le passage 52. Ainsi, la tige 10 est arrêtée après une course plus ou moins longue qui détermine, on l'a vu plus haut, la distance D3. Pour obtenir le blocage du butoir 54 à l'emplacement désiré, on utilise ici une cale 60 montée coulissante sans frottement dans une glissière 61 du corps 1 et solidaire d'un bouton de commande 62 qui est engagé dans une lumière 63 prévue dans le corps 1 et qui est accessible depuis l'extérieur grâce au fait qu'il apparaît sous le bord du capot 3 (voir figures 1 et 5). Un ressort 64 est placé dans •un logement 65 et agit sur la cale 60 soit directement soit par l'intermédiaire d'un patin pour exercer sur elle une 5 pression qui se traduit par un frottement de ladite cale 60 contre la glissière 61. Au moyen du bouton 62, l'opérateur appuie un peu sur la cale 60 pour diminuer (voire supprimer) le frottement et pour faire coulisser la cale 60 jusqu'à la position voulue. Pour cela, une graduation (non représentée)57 whose axis is perpendicular to that of the spindle 50, so that the pivoting of the stopper 54. in one direction or the other has the effect of placing its active part 54a more or less close to the outlet of the passage * 52 and, therefore, to limit more or less the insertion of the spindle 50 in the said passage 52, this amounting to more or less limiting the insertion of the spindle 50 in the passage 52. Thus, the rod 10 is stopped after a more or less long race which determines, as we saw above, the distance D3. To obtain the blocking of the stopper 54 at the desired location, a wedge 60 is used here mounted sliding without friction in a slide 61 of the body 1 and secured to a control button 62 which is engaged in a slot 63 provided in the body 1 and which is accessible from the exterior thanks to the fact that it appears under the edge of the cover 3 (see FIGS. 1 and 5). A spring 64 is placed in a housing 65 and acts on the wedge 60 either directly or by means of a shoe to exert on it a pressure which results in friction of said wedge 60 against the slide 61. At by means of button 62, the operator presses a little on the wedge 60 to reduce (or even eliminate) the friction and to make the wedge 60 slide to the desired position. For this, a graduation (not shown)
10 est prévue le long de la lumière 63, sur le corps 1 ou sur le capot 3, pour permettre à l'opérateur de choisir la position correspondant à la dose de produit A qu'il désire fixer.10 is provided along the lumen 63, on the body 1 or on the cover 3, to allow the operator to choose the position corresponding to the dose of product A which he wishes to fix.
En se servant du bouton 62 comme repère par rapport à la graduation, l'opérateur déplace vers la droite ou versUsing button 62 as a guide to the scale, the operator moves to the right or to
15 la gauche la cale 60 pour que son plan incliné 60a bloque le butoir 54 en pivotement dans une position telle que la par¬ tie active 54a soit plus ou moins près de l'orifice du pas¬ sage 52.15 on the left the wedge 60 so that its inclined plane 60a blocks the stopper 54 in pivoting in a position such that the active part 54a is more or less close to the orifice of the passage 52.
Sur la figure 2, on voit qu'en position de retraitIn Figure 2, we see that in the retracted position
20 complet de l'ensemble, la tige 10 entraîne la broche 50 par la traverse 51 de telle sorte que l'extrémité 53 de ladite broche 50 se trouve éloignée de la partie active 54a du butoir 54 d'une distance D8 égale à la somme des distances Dl et D3.20 complete of the assembly, the rod 10 drives the spindle 50 through the cross member 51 so that the end 53 of said spindle 50 is located away from the active part 54a of the stopper 54 by a distance D8 equal to the sum distances Dl and D3.
25 Sur la figure 3, on voit que l'extrémité 53 de la broche 50 n'est plus éloignée de la partie active 54a du bu toir 54 que d'une distance D9 égale à la distance D3 puisque la tige 10 et la broche 50 ont parcouru complètement la distance Dl.In FIG. 3, it can be seen that the end 53 of the spindle 50 is no longer distant from the active part 54a of the roof 54 only by a distance D9 equal to the distance D3 since the rod 10 and the spindle 50 have completely covered the distance Dl.
3.Q Sur la figure 4, on voit que la distance D3 et la distance D9 ont été entièrement parcourues, l'arrêt des éléments mobiles ayant été provoqué par la rencontre de l'extrémité 53 et de la partie active 54a du butoir 54, lui- même bloqué par la cale 60. Si l'opérateur avait voulu fixer une dose plus faible, avec la même seringue ayant, par conséquent, un dia¬ mètre inchangé, il eut suffi qu'il déplace la cale 60 vers la gauche (figure 5) car le plan incliné 60a de la cale 60 aurait soulevé la partie inférieure du butoir 54 et aurait approché la partie active 54a pour arrêter la broche 50 plus tôt, ce qui revient à dire que ce réglage correspond à un raccourcissement de la distance D3 et à une diminution cor¬ rélative du volume de produit A expulsé du corps 31 par le piston 34. Si l'opérateur avait voulu augmenter la dose, il eut suffi qu'il déplace la cale 60 vers la droite.3.Q On figure 4, we see that the distance D3 and the distance D9 have been completely covered, the stopping of the mobile elements having been caused by the meeting of the end 53 and the active part 54a of the stopper 54, itself blocked by the wedge 60. If the operator had wanted to fix a lower dose, with the same syringe having, consequently, an unchanged diameter, it would have been enough for it to move the wedge 60 to the left (FIG. 5) because the inclined plane 60a of the wedge 60 would have raised the part lower of the stopper 54 and would have approached the active part 54a to stop the spindle 50 earlier, which amounts to saying that this adjustment corresponds to a shortening of the distance D3 and to a corresponding reduction in the volume of product A expelled from the body 31 by the piston 34. If the operator had wanted to increase the dose, it would have been enough for him to move the shim 60 to the right.
On remarque que le ressort 56 sollicite en permanence la traverse 51 et donc la tige 10 vers la position de retrait complet, de sorte que ce ressort sert au rappel de la tige 10 et permet d'utiliser un distributeur 12-13 à simple effet si on le désire.It is noted that the spring 56 permanently biases the cross member 51 and therefore the rod 10 towards the position of complete withdrawal, so that this spring serves to return the rod 10 and allows the use of a 12-13 single-acting distributor if we want it.
Lorsque l'opérateur veut, effectuer une injection, il agit sur le bouton 30 pour déclencher les opérations d'extraction de l'aigui lle 33 et d' Injection du produit A. Dès que l'injection est terminée, la pression de gaz agissant sur la face arrière du tiroir 13 est annulée et la tige 10 est ramenée en arrière soit par le ressort 56, soit par une pression de gaz établie sur la face avant du tiroir 13, comme on l'a expliqué plus haut. Ce faisant, la butée 14 solidaire de la tige 10 rencontre l'avant du chariot 5 et ramène celui-ci en arrière.When the operator wants to carry out an injection, he acts on the button 30 to trigger the operations of extracting the needle 33 and injecting product A. As soon as the injection is complete, the gas pressure acting on the rear face of the drawer 13 is canceled and the rod 10 is brought back either by the spring 56, or by a gas pressure established on the front face of the drawer 13, as explained above. In doing so, the stop 14 integral with the rod 10 meets the front of the carriage 5 and brings the latter back.
Simultanément, la tige 10 traverse l'orifice 9 du levier 8 sans exercer aucune action sur ce dernier qui, étant libre de toute contrainte, recule en même temps que le char- riot 5 puisque celui-ci pousse le corps 31 de la seringue et que, symétriquement à ce qui a été expliqué plus haut, le produit A exerce une pression sur le piston 34 et donc sur la partie 35 et sur le poussoir 7 solidaire du levier 8. Lorsque l'opérateur voudra effectuer une seconde injection, (et sous réserve d'autres automatismes ajoutés) il appuiera à nouveau sur le bouton 30 qui provoquera les mêmes opérations que précédemment.Simultaneously, the rod 10 passes through the orifice 9 of the lever 8 without exerting any action on the latter which, being free from any constraint, moves back at the same time as the load. riot 5 since it pushes the body 31 of the syringe and that, symmetrically to what has been explained above, the product A exerts a pressure on the piston 34 and therefore on the part 35 and on the pusher 7 secured to the lever 8. When the operator wants to make a second injection (and subject to other automatic mechanisms added), he will press button 30 again, which will cause the same operations as above.
Il résulte des explications ci-dessus, que dans le sens de l'extraction il se produit d'abord un mouvement de l'ensemble (poussoir 7 - piston 3 - corps 31 - aiguille 33> puis un mouvement (poussoir 7 - piston 34 - produit A> tandis que dans le sens de la rentrée il ne se produit qu'un seul mouvement d'ensemble qui ne modifie pas la position relative du corps do seringue et de son piston.It follows from the above explanations, that in the direction of extraction there is first a movement of the assembly (pusher 7 - piston 3 - body 31 - needle 33> then a movement (pusher 7 - piston 34) - product A> while in the direction of reentry, there is only a single overall movement which does not modify the relative position of the syringe body and its piston.
Ainsi, lors de chaque injection, le piston 34 ef¬ fectue une course supérieure à celle de la seringue, la dif¬ férence de ces deux courses étant égale à la hauteur du volume cylindrique de produit. A injecté. II faut souligner que le piston 34 continue son déplacement vers l'avant quand le corps 31 de la seringue est arrêté et que le réglage des doses se fait exclusivement en agissant sur le déplacement d'organes mécaniques et non par des moyens de temporisa ion qui sont, on le sait, beaucoup moins précis que les moyens mécaniques qui peuvent être réglés à quelques fractions de millimètre près.Thus, during each injection, the piston 34 ef¬ performs a stroke greater than that of the syringe, the dif¬ ference of these two strokes being equal to the height of the cylindrical volume of product. Has injected. It should be emphasized that the piston 34 continues to move forward when the body 31 of the syringe is stopped and that the adjustment of the doses is done exclusively by acting on the movement of mechanical organs and not by means of timing which are, as we know, much less precise than the mechanical means which can be adjusted to a few fractions of a millimeter.
Il ressort de la description ce-dessus qu'un appareil conforme à l'invention peut être réalisé avec de matériaux très légers et qu'il ne nécessite que des opérations d'usi- nage très simples (ou de moulage), de sorte que le praticien peut procéder à des séries d'injections sans fatigue, sans lassitude et en conservant toute la précision nécessaire à son art.It emerges from the above description that an apparatus according to the invention can be produced with very light materials and that it requires only very simple machining operations (or molding), so that the practitioner can proceed to series of injections without fatigue, without weariness and retaining all the precision necessary for his art.
Les automatismes qu'il est possible d'ajouter permet- tent de simplifier grandement les manipulations de 1 ' opérateur.The automatisms that can be added allow try to greatly simplify the manipulations of one operator.
En outre, l'entretien d'un appareil tel qu'il vient d'être décrit est pratiquement nul puisqu'il suffit de remplacer la bouteille de gaz comprimé 21 quand celle-ci est vide.In addition, the maintenance of an apparatus as just described is practically zero since it suffices to replace the compressed gas bottle 21 when the latter is empty.
Naturellement, l'appareil conforme à l'invention peut recevoir des seringues de toutes les dimensions standards que l'on rencontre sur le marché et peut, également être utilisé avec différents types d'aiguilles. Naturally, the device according to the invention can receive syringes of all the standard dimensions encountered on the market and can also be used with different types of needles.

Claims

REVENDICATIONS
1- Appareil pour exécuter des injections médicamen¬ teuses dans la chair d'êtres vivants, humains et animaux, du type comprenant d'une part un bâti portatif (1) qui a, de préférence, la forme générale d'un pistolet et qui reçoit un chariot (5) mobile longitudinalement pour une seringue amo¬ vible (31-32) à aiguille (33) et à piston (34-35), ffinsi qu'un poussoir (7) mobile longitudinalement et destiné à agir sur le piston (34-35) de la seringue (31-32) et, d'autre part, des moyens moteurs correspondant au déplacement du chariot (5) et au déplacement du poussoir (7), caractérisé en ce que les moyens moteurs (12-13) sont reliés au poussoir (7) par un mécanisme à sens unique de tout type connu (8-9) pour assurer le déplacement du pous¬ soir (7) dans un premier sens correspondant à l'enfoncement du piston (34) dans la seringue (31) et pour le laisser libre dans le sens opposé, tandis que le chariot (5) est libre dans ledit premier sens et sollicité dans ledit sens opposé, une butée (30) solidaire du bâti (1) étant placée sur le parcours du chariot (5) en avant et à une distance (Dl) de ce dernier inférieure à la course (03) du poussoir (7), des moyens (50 à 60) étant de préférence prévus pour régler la longueur de ladite course (D3).1- Apparatus for performing medicinal injections into the flesh of living beings, humans and animals, of the type comprising on the one hand a portable frame (1) which preferably has the general shape of a pistol and which receives a carriage (5) movable longitudinally for a detachable syringe (31-32) with needle (33) and piston (34-35), so that a pusher (7) movable longitudinally and intended to act on the piston (34-35) of the syringe (31-32) and, on the other hand, motor means corresponding to the movement of the carriage (5) and to the movement of the pusher (7), characterized in that the motor means (12- 13) are connected to the pusher (7) by a one-way mechanism of any known type (8-9) to ensure the displacement of the pous¬ evening (7) in a first direction corresponding to the depression of the piston (34) in the syringe (31) and to leave it free in the opposite direction, while the carriage (5) is free in said first direction and biased in said sen s opposite, a stop (30) integral with the frame (1) being placed on the path of the carriage (5) in front and at a distance (Dl) from the latter less than the stroke (03) of the pusher (7), means (50 to 60) being preferably provided for adjusting the length of said stroke (D3).
2- Appareil selon la revendication 1, caractérisé en ce que le chariot (5) est sollicité dans ledit sens opposé soit par les moyens moteurs (12-13) qui, alors, sont du type à mouvement réversible, soit par un ressort de rappel (56).2- Apparatus according to claim 1, characterized in that the carriage (5) is biased in said opposite direction either by the motor means (12-13) which, then, are of the reversible movement type, or by a return spring (56).
3- Appareil selon la revendication 1, caractérisé en ce que la partie mobile (13) des moyens moteurs (12-13) est en prise avec une tige longitudinale lisse (10) traversant un orifice (9) prévu dans un plan d'un levier (8), oblique par rapport à l'axe de la tige (10), levier (8) qui est solidaire du poussoir (7) et qui est sollicité élastiquement vers une position dite active dans laquelle il s'oppose par arc- boutement à la libre translation de la tige (10) dans l'orifice (9) afin d'être entraîné par ladite tige (10) en déplacement dans un sens correspondan à l'enfoncement du piston (34) dans la seringue (31), tandis que dans son sens de déplacement opposé, la tige (10) traverse librement l'orifice (9) et laisse donc le levier (8) à l'emplacement qu'il occupe, cet ensemble (8-9- 10) constituant un mécanisme à sens unique pour assurer le déplacement du poussoir (7.) dans un premier sens et pour le laisser libre dans le sens opposé.3- Apparatus according to claim 1, characterized in that the movable part (13) of the drive means (12-13) is engaged with a smooth longitudinal rod (10) passing through an orifice (9) provided in a plane of a lever (8), oblique to the axis of the rod (10), lever (8) which is integral with the pusher (7) and which is urged elastically towards a so-called active position in which it is opposed by bracing to the free translation of the rod (10) in the orifice (9) in order to be driven by said rod (10) moving in a direction corresponding to the insertion of the piston (34) into the syringe (31), while in its opposite direction of movement, the rod (10) freely crosses the orifice (9) and leaves therefore the lever (8) at the location which it occupies, this assembly (8-9-10) constituting a one-way mechanism for ensuring the displacement of the pusher (7.) in a first direction and for leaving it free in the opposite direction.
4- Appareil selon les revendicationss 2 et 3, carac¬ térisé en ce que la tige CIO) a une longueur telle que son extrémité avant est située devant. L e. chariot (5) et porte une butée (14) destinée à entrer en contact avec ledit chariot (5) mais seulement dans le sens correspondant, au recul du chariot (5) et de la seringue (31-32-34) qu'il porte, la tige (10) devant être entraînée dans ce sens, soit par les moyens moteurs (12-13), soit par un ressort de rappel (56) .4- Apparatus according to claims 2 and 3, carac¬ terized in that the rod CIO) has a length such that its front end is located in front. The. carriage (5) and carries a stop (14) intended to come into contact with said carriage (5) but only in the corresponding direction, when the carriage (5) and the syringe (31-32-34) recede door, the rod (10) to be driven in this direction, either by the motor means (12-13), or by a return spring (56).
5 - Appareil selon la revendication l, caractérisé en ce qu'il comprend un capot (3) monté coulissant longitudi¬ nalement et muni Intérieurement d'un crochet éciipsable (20) placé dans l'alignement du poussoir (7) ou d'une pièce (17) qui en est solidaire afin que le déplacement du capot (3) puisse être transmis audit poussoir (7) dans le sens avant- arrière mais non dans le sens arrière-avant.5 - Apparatus according to claim l, characterized in that it comprises a cover (3) mounted sliding longitudi¬ nally and provided internally with an eciipsable hook (20) placed in alignment with the pusher (7) or a part (17) which is integral with it so that the displacement of the cover (3) can be transmitted to said pusher (7) in the front-rear direction but not in the rear-front direction.
6- Appareil selon les revendications 1 et 3 carac- térisé en ce que la tige (10) est solidaire d'une butée (50-6- Apparatus according to claims 1 and 3 characterized in that the rod (10) is integral with a stop (50-
53) sur le parcours de laquelle se trouve un butoir d'arrêt (54) dont la position est ajustable, cet ensemble (50-53-54) constituant ainsi des moyens pour régler la longueur de la course du poussoir (7). 2053) on the path of which there is a stopper (54) whose position is adjustable, this assembly (50-53-54) thus constituting means for adjusting the length of the stroke of the pusher (7). 20
7- Appareil selon les revendications 4 et 6, carac¬ térisé en ce que la butée est constituée par l'extrémité (53) d'une broche (50) qui est parallèle à la tige (10) et qui est sollicitée par un ressort (56) constituant le res- sort de rappel de la tige (10).7- Apparatus according to claims 4 and 6, charac¬ terized in that the stopper is constituted by the end (53) of a pin (50) which is parallel to the rod (10) and which is biased by a spring (56) constituting the return spring of the rod (10).
8- Appareil selon la revendication 1, caractérisé en ce que les moyens moteurs sont constitués par un distribu¬ teur (12-13) à fluide comprimé comportant un cylindre (12) fixé au bâti (1) et une partie mobile formée par un tiroir (13) monté coulissant dans le cylindre (12) et reliée ciné- matiquement au poussoir (7).8- Apparatus according to claim 1, characterized in that the drive means are constituted by a distributor (12-13) with compressed fluid comprising a cylinder (12) fixed to the frame (1) and a movable part formed by a drawer (13) slidably mounted in the cylinder (12) and kinematically connected to the pusher (7).
9- Appareil selon les revendications 3 et 8, carac¬ térisé en ce que le tiroir 13 est solidaire de la tige (10).9- Apparatus according to claims 3 and 8, carac¬ terized in that the drawer 13 is integral with the rod (10).
10 Appareil selon les revendications 1 et 8, caractérisé en ce que le bâti (1) comporte une crosse (2) dans laquelle se trouve un mécanisme (29) de contrôle de l'arrivée de fluide au distributeur (12-13), ce mécanisme 29 étant commandé par un organe telle qu'une gâchette ou détente, un bouton poussoir (30) et analogue. 11- Appareil selon la revendication 10, caractérisé en ce que le fluide comprimé est stocké dans une bouteille interchangeable (26) logée dans la crosse (2) et dont un orifice est mis en communication avec le mécanisme de contrôle (29). 10 Apparatus according to claims 1 and 8, characterized in that the frame (1) comprises a stock (2) in which there is a mechanism (29) for controlling the arrival of fluid to the distributor (12-13), this mechanism 29 being controlled by a member such as a trigger or trigger, a push button (30) and the like. 11- Apparatus according to claim 10, characterized in that the compressed fluid is stored in an interchangeable bottle (26) housed in the butt (2) and an orifice is placed in communication with the control mechanism (29).
PCT/FR1985/000196 1984-07-18 1985-07-18 Apparatus for performing series of medicinal injections WO1986000815A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8411336A FR2567760A1 (en) 1984-07-18 1984-07-18 APPARATUS FOR EXECUTING SERIES OF DRUG INJECTIONS
FR84/11336 1984-07-18

Publications (1)

Publication Number Publication Date
WO1986000815A1 true WO1986000815A1 (en) 1986-02-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1985/000196 WO1986000815A1 (en) 1984-07-18 1985-07-18 Apparatus for performing series of medicinal injections

Country Status (4)

Country Link
EP (1) EP0188488A1 (en)
JP (1) JPS61502728A (en)
FR (1) FR2567760A1 (en)
WO (1) WO1986000815A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520296A1 (en) * 1991-06-26 1992-12-30 United States Surgical Corporation Powered trocar
US5480381A (en) * 1991-08-23 1996-01-02 Weston Medical Limited Needle-less injector
US5823998A (en) * 1994-08-24 1998-10-20 Eli Lilly Japan Kabushiki Kaisha Injection apparatus
US6448091B1 (en) * 1988-11-03 2002-09-10 Igen International, Inc. Method and apparatus for improved luminescence assays using particle concentration chemiluminescence detection

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594341B1 (en) * 1986-02-14 1990-08-10 Charton Jean Pierre INJECTOR APPARATUS FOR THE PRACTICE OF MESOTHERAPY
JPS63151149U (en) * 1987-03-24 1988-10-04
FR2639234B1 (en) * 1988-11-21 1994-05-06 Denance Raymond INJECTION DEVICE FOR MEDICAL AND VETERINARY USE WHOSE STABILIZING SIGHT IS FOR SINGLE USE AND ACTUATES A MEANS AS A VALVE AT THE NEEDLE
FR2689017B1 (en) * 1992-03-31 1994-05-27 Mtc Medical MEDICAL OR VETERINARY INJECTION APPARATUS.
DE19819409A1 (en) 1998-04-30 1999-11-11 Schering Ag Injection device
EP1843812A4 (en) * 2005-02-01 2008-12-03 Intelliject Llc Devices, systems, and methods for medicament delivery
KR101007094B1 (en) * 2010-04-06 2011-01-10 강원대학교산학협력단 Injection device

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DE356704C (en) * 1918-03-15 1922-07-27 Edmondo Luswergh Dr syringe
US2816546A (en) * 1955-04-14 1957-12-17 Luhmann Fred Medicine injector
US3353537A (en) * 1965-08-11 1967-11-21 George W Knox Automatic multi-dosage inoculating instrument
FR1563664A (en) * 1967-09-15 1969-04-18
FR2414923A1 (en) * 1978-01-19 1979-08-17 Reynaud Marc Pistol grip injector syringe - has smooth piston rod with loose collar tilting off centre to grip and move rod under trigger pressure
DE3026318A1 (en) * 1980-07-11 1982-02-04 Michael 5020 Frechen Becker Intramuscular insulin injection instrument - has trigger spring loaded into frictional contact with spring loaded braked slide

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Publication number Priority date Publication date Assignee Title
DE356704C (en) * 1918-03-15 1922-07-27 Edmondo Luswergh Dr syringe
US2816546A (en) * 1955-04-14 1957-12-17 Luhmann Fred Medicine injector
US3353537A (en) * 1965-08-11 1967-11-21 George W Knox Automatic multi-dosage inoculating instrument
FR1563664A (en) * 1967-09-15 1969-04-18
FR2414923A1 (en) * 1978-01-19 1979-08-17 Reynaud Marc Pistol grip injector syringe - has smooth piston rod with loose collar tilting off centre to grip and move rod under trigger pressure
DE3026318A1 (en) * 1980-07-11 1982-02-04 Michael 5020 Frechen Becker Intramuscular insulin injection instrument - has trigger spring loaded into frictional contact with spring loaded braked slide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6448091B1 (en) * 1988-11-03 2002-09-10 Igen International, Inc. Method and apparatus for improved luminescence assays using particle concentration chemiluminescence detection
EP0520296A1 (en) * 1991-06-26 1992-12-30 United States Surgical Corporation Powered trocar
US6197041B1 (en) 1991-06-26 2001-03-06 United States Surgical Corporation Trocar
US5480381A (en) * 1991-08-23 1996-01-02 Weston Medical Limited Needle-less injector
US5823998A (en) * 1994-08-24 1998-10-20 Eli Lilly Japan Kabushiki Kaisha Injection apparatus

Also Published As

Publication number Publication date
JPS61502728A (en) 1986-11-27
EP0188488A1 (en) 1986-07-30
FR2567760A1 (en) 1986-01-24

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