FR2622457A1 - Mesotherapeutic injector with microprocessor - Google Patents

Mesotherapeutic injector with microprocessor Download PDF

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Publication number
FR2622457A1
FR2622457A1 FR8715383A FR8715383A FR2622457A1 FR 2622457 A1 FR2622457 A1 FR 2622457A1 FR 8715383 A FR8715383 A FR 8715383A FR 8715383 A FR8715383 A FR 8715383A FR 2622457 A1 FR2622457 A1 FR 2622457A1
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Prior art keywords
needle
motor
piston
circuit
rack
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PICCINALI ERIC
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PICCINALI ERIC
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Priority to FR8715383A priority Critical patent/FR2622457A1/en
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    • 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
    • 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
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M2005/3152—Piston or piston-rod constructions, e.g. connection of piston with piston-rod including gearings to multiply or attenuate the piston displacing force

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  • 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

Microprocessor-controlled device for administering - or sampling - liquid products as well as microcurrents. It consists of a frame 1 whose upper part 2 is removable and contains a syringe 3 fitted with a needle 4. An electronic microcircuit 5 controls the operation of an electric motor 7 which actuates a rack 8 which ensures penetration and retraction of the needle 4, and an electric motor 9 which drives a rack 10 actuating the piston 11. Potentiometers 12, 13, 14, 27 and 32 respectively program the power and duration of operation of the motor 9, the synchronisation of the motors 7 and 9, the sensitivity threshold of an electronic circuit sensitive to variations in conductivity 24 at the tip of the needle 4, as well as the intensity of a current generated by a second electronic circuit 31. The device according to the innovation is intended particularly for the practice of mesotherapy.

Description

DESCRIPTION
la présente innovation concerne un dispositif commandé par microprocesseur pour administrer - ou prélever - des produits liquides, ainsi que des iicro-courants0-
les appareils utilises jusqu'à présent pour injecter des produits liquides sont s - Soit électriques s lorsque l'utilisateur appuie sur la gachette d'un pistolet, une seringue remplie du produit â injecter et fixée sur un chariot animé d'un mouvement alternatif, vient piquer la peau. En même temps1 une butée mécanique se de place de quelques millimètres le long d' une vis sans fin pour pousser le piston à l'intérieur de la seringue.DESCRIPTION
the present innovation relates to a device controlled by a microprocessor for administering - or withdrawing - liquid products, as well as micro-currents
the devices used until now for injecting liquid products are s - Either electric s when the user presses the trigger of a pistol, a syringe filled with the product to be injected and fixed on a cart animated with an alternating movement, comes to prick the skin. At the same time1 a mechanical stop takes place a few millimeters along an endless screw to push the plunger inside the syringe.

- Soit mécaniques: lorsque l'utilisateur appuie sur la gachette d'uu pistolet, un système mécanique rient appliquer la peau contre l'aiguille d'une seringue qui contient le produit à administrer, et assure ainsi la pénétration puis le retrait de l'aiguille. Comme dans l'appareil préce dent, le piston est poussé par une butée mécanique qui, dans le même temps, se déplace de quelques millimètres le long d'une vis sans fin. - Either mechanical: when the user presses the trigger of a gun, a mechanical system laughs applying the skin against the needle of a syringe which contains the product to be administered, and thus ensures penetration and then withdrawal of the needle. As in the previous device, the piston is pushed by a mechanical stop which, at the same time, moves a few millimeters along a worm.

Ces appareils pro sentent les inconvenients suivants :
ta pression exercée par le piston sur les produits à injecter reste constante, quelque soit la resistance interne opposée par la peau, alors que cette résistance est variable en fonction :: - des caractéristiques de chaque patient ( âge, sexes région du corps à traiter nature de la pathologie, de la peau, présence éventuelle de le siens cutanées ou cicatricielles ) X - des caracteristiques des mélanges de produits injectes ( densité, vis- cosité...); - de la profondeur d'introduction de l'aiguille
Ces appareils, contrairement à ce qui se passe lorsque le praticien erpérimenté injecte manuellement les produits médicamenteux à l' aiguille unique, ne s'adaptent pas au:: circonstances rencontrées. il en résulte une diminution de l'éfficacité, car, dans de nombreux cas, une partie des produits actifs ne peut pas pénetrer dans le tissu conjonctif intradermique ( la préssion exercée par le piston sur la solution à in jecter étant insuffisante pour vaincre la résistance interne epposéo ).These devices have the following disadvantages:
your pressure exerted by the piston on the products to be injected remains constant, whatever the internal resistance opposed by the skin, while this resistance is variable according to: - the characteristics of each patient (age, sexes region of the body to be treated nature pathology, skin, possible presence of skin or scars) X - characteristics of mixtures of injected products (density, viscosity, etc.); - the insertion depth of the needle
These devices, unlike what happens when the experienced practitioner manually injects the medicinal products with the single needle, do not adapt to the circumstances encountered. this results in a decrease in effectiveness, since, in many cases, part of the active products cannot penetrate into the intradermal connective tissue (the pressure exerted by the piston on the solution to be injected being insufficient to overcome the resistance internal epposéo).

La synchronisation entre le temps d'introduction de l'aiguille et celui de l'administration des produits n'est pas d'une précision rigoureuse. Cela se traduit par des pertes de produits médicamenteur conteuses, tachent les patients et le divan d'examen, génant le practicien, l'espéchant de connaître la quantité de produits actifs réellement administrée, de codifier precisenent les actes accomplis et, ainsi, do ne pas se situer inutilement au dessus du seuil miniiui d'efficacité thera- peptique, ou, au contraire, de façon inefficace en dessous do celui-ci. The synchronization between the time of insertion of the needle and that of the administration of the products is not of rigorous precision. This translates into losses of storytelling drug products, stains the patients and the examination couch, annoying the practitioner, hoping to know the quantity of active products actually administered, to codify precisenent the acts performed and, thus, do not not be unnecessarily above the minimum threshold for therapeutic efficacy, or, on the contrary, ineffectively below it.

le dispositif selon l'innovation permet de remédier à ces inconvénients. the device according to the innovation overcomes these drawbacks.

Il se compose en effet d'un bati en forne de pistolet dont la partie zuperieure, pourvue d'une fenètre transparente pour voir la pro gréssion du produit à l'intèrieur de la seringue, est amovible afin de placer une seringue munie d'une aiguille. Un microcircuit électronique comnande, lorsque le praticien appuie sur une gachette, le tonctionne- ment t - d'un premier moteur électrique qui anime d'un mouvement alternatif une crémaillere assurant la pénétration et le retrait de l'aiguille. It is in fact made up of a frame in the shape of a pistol, the zuperieure part, provided with a transparent window to see the growth of the product inside the syringe, is removable in order to place a syringe provided with a needle. An electronic microcircuit controls, when the practitioner presses on a trigger, the operation t - of a first electric motor which drives in a reciprocating motion a rack ensuring penetration and withdrawal of the needle.

- d'un second moteur électrique qui actionne, par l'intermédiaire d'une seconde crémaillère, le piston à l'interieur de la seringue.- a second electric motor which activates, via a second rack, the piston inside the syringe.

Detix potentiometres programnent respectivenent la puissance et la durée de fonctionnement de second noceur, ce qui permet d'une part d'adapter la pression exercée par le piston en fonction des caractéristiques de chaque patient, de chaque mélange de produits médicamenteux et de la profondeur d'introduction de l'aiguille et, d'autre part, de choisir la quantité constante de solution à administrer lors de chaque pénétration de l'aiguille. Detix potentiometers program respectively the power and the duration of operation of the second reedor, which allows on the one hand to adapt the pressure exerted by the piston according to the characteristics of each patient, of each mixture of medicinal products and of the depth d 'introduction of the needle and, on the other hand, to choose the constant amount of solution to be administered during each penetration of the needle.

Un troisième potentiomètre pernet de synchroniser très précisément le fenctionnement des deux moteurs, Le moteur qui actionne le piston entre ainsi en fonction uniquement lorsque le premier moteur a fait pénetrer l'aiguille sous la surface cutanée.Dés que ce dernier commence à assu- rer le retrait de l'aiguille, le second moteur s'arrète de fonctionner
Cela perlot d'éviter les pertes de produits médicamenteux coûteuses, tachant les patients et le divan d'examen génant le praticien, i'empé- chant de connaître la quantité de produits réellement adninistré, de codifier précisément les actes accomplis et, ainsi, de ne pas se situer inùtilement an dessus ou, de façon inefficace, en dessous du seuil minimus d'éfficacit; thérapeutique.A third potentiometer allows to synchronize very precisely the operation of the two motors. The motor which actuates the piston thus enters into operation only when the first motor has penetrated the needle under the skin surface. As soon as the latter begins to ensure the needle removal, second motor stops running
This avoids the loss of expensive drug products, staining the patients and the examination couch annoying the practitioner, preventing me from knowing the quantity of products actually administered, from codifying precisely the acts performed and, thus, from not be located unnecessarily above or, ineffectively, below the minimum efficiency threshold; therapeutic.

Une butée mobile règle la profondeur de pénétration de l'aiguille en limitant l'amplitude du mouvement de la première crémaillère.A movable stop adjusts the penetration depth of the needle by limiting the amplitude of movement of the first rack.

Un bouton poussoir permet, lorsque le premier moteur a fait pénetrer 1 aiguille à la profondeur programmée, de continuer á faire fonctionner le second moteur qui actionnera le piston tant que le praticion appuiera sur ce bouton. l'utilisateur peut ainci administier en certaine endroits et quand il le désire, une quantité de mélange édicaenteu: supérieure à celle qu'il a progra mé. A push button allows, when the first motor has entered 1 needle to the programmed depth, to continue to operate the second motor which will actuate the piston as long as the practitioner presses this button. the user can thus administer in certain places and when he wishes, a quantity of edicaenteu mixture: greater than that which he has programmed.

La poignée renferme des piles, ainsi qu'une prise maie destinée à recevoir la prise femelle d'un cordon d'alimentation dont l'autre extrémité est constituée par un transformateur relié1 lorsque le dispositif ne fonctionne par sur piles, au secteur par une prise.The handle contains batteries, as well as a male plug intended to receive the female plug of a power cord, the other end of which is constituted by a transformer connected when the device does not run on batteries, to the mains by a plug .

Selon une variante, un détecteur de résistance du second moteur peut entre relié au microcircuit électronique qui actionne un signal sonore ou augmente progréssivement la puissance de ce moteur, tant que la force développée par le piston reste insuffisante pour vaincre la résistance interne opposée par la région cutanée concernée. According to a variant, a resistance detector of the second motor can be connected to the electronic microcircuit which actuates an audible signal or progressively increases the power of this motor, as long as the force developed by the piston remains insufficient to overcome the internal resistance opposed by the region skin affected.

Selon une seconde variante, un circuit électronique sensible à des variations de conductibilité de quelques micro-aupéres peut prélever den icro-courants au niveau de la pointe de l'aiguille ( dont la partie postêrieure métallique rient se fixer sur l'embout de la seringue au niveau d'un support métallique relié électriquement à ce circuit ) lourez qu' un intrrupteur-potentiométre est actionné par le praticien Un ca ble porte à son extrémité une électrode tenue par la main du patient, ou entrant en contact avec un autre point de la surface cutanée du malade et, à l'autre bout, une fiche mle destinée à être introduite dans la fiche femelle reliée â ce circuit. Dés que ce dernier détecte une très légère augmentation de la conductibilité électrique au niveau d'un point de la surface cutanée, un signal sonore est émis. Cela permet au praticien, avec le marne appareil, de détecter les points d'acupuncture sur la région cutanée à traiter. According to a second variant, an electronic circuit sensitive to variations in the conductivity of a few micro-aupers can take out icro-currents at the tip of the needle (the metal posterior part of which is fixed on the tip of the syringe at the level of a metal support electrically connected to this circuit) notice that a switch-potentiometer is actuated by the practitioner A cable carries at its end an electrode held by the patient's hand, or coming into contact with another point of the patient's skin surface and, at the other end, a male plug intended to be inserted into the female plug connected to this circuit. As soon as the latter detects a very slight increase in electrical conductivity at a point on the skin surface, an audible signal is emitted. This allows the practitioner, with the marne device, to detect acupuncture points on the skin region to be treated.

Un circuit électronique générateur d'un courant de stimulation de type faradique peut administrer cette stimulation au niveau de la pointe de l'aiguille lorqu'un interrupteur-potentiomètre est actionné par l'utilisateur. Cela permet au praticien de disposer, avec le m8mc appareil, d' une voie d'abord complémentaire de la pathologie à traiter.An electronic circuit generating a faradic type stimulation current can administer this stimulation at the tip of the needle when a switch-potentiometer is actuated by the user. This allows the practitioner to have, with the m8mc device, a first approach complementary to the pathology to be treated.

Selon une troisième variante, le premier moteur électrique peut titre remplacé par un système mécanique ( roue dentée qui, lorsque le praticien appuie sur la gachette, anime d'un mouvement alternatif la crémaillère assurant la pénétration et le retrait de l'aiguille ).Cela permet de mettre également sur le marché une version simplifiée du me- dèle de base. According to a third variant, the first electric motor can title replaced by a mechanical system (toothed wheel which, when the practitioner presses the trigger, activates with an alternating movement the rack ensuring the penetration and the withdrawal of the needle). also makes it possible to market a simplified version of the basic model.

les dessins annexés illustrent l'innovation s
La figure 1 représente en vuo générale le dispositif selon l'in- vent ion. the accompanying drawings illustrate the innovation s
FIG. 1 shows in general view the device according to the invention.

La figure 2 représente, en-vue générale, avec le couvercle étan che protégeant les potentioiétres retiré le dispositif selon l'innovatison. FIG. 2 represents, in general view, with the waterproof cover protecting the potentiometers removed the device according to the innovation.

La figure 3 représente, en Coupe, le diepositif selon l'innovation,
La figure 4 représente, en coup., une variante de ce dispositif.FIG. 3 represents, in section, the device according to the innovation,
Figure 4 shows, in section, a variant of this device.

L#injecteur mésothérapique à iicroprocesseur représenté sur la figure i à l'échelle 1/2 comporte un bati étanche (1) dont la parti. The mesotherapeutic injector with a microprocessor shown in FIG. 1 on a 1/2 scale comprises a sealed frame (1), the part of which.

supérieure pourvue d'une fenêtre transparente et amovible (2) renverse une seringue (3) munie d'une aiguille (4) (voir fig. 3). Comme le représente également la figure 3, un microcircuit électronique (5) commande, lorsque le praticien appuie sur une gachette (6), le fonctionnement S - d'un premier moteur électrique (7) qui anime d'un nouvement alternatif une crémaillère (8) assurant la pénétration et le retrait de l'aiguille (4).upper provided with a transparent and removable window (2) reverses a syringe (3) provided with a needle (4) (see fig. 3). As also shown in FIG. 3, an electronic microcircuit (5) controls, when the practitioner presses on a trigger (6), the operation S - of a first electric motor (7) which drives a rack ( 8) ensuring the penetration and withdrawal of the needle (4).

- d'un second moteur électrique (9) qui actionne par l'intermédiaire d'une seconde crémaillère (10), le piston (il) à l'intèrieur de la se- ringue (3).- a second electric motor (9) which actuates, via a second rack (10), the piston (it) inside the syringe (3).

Deux potentiomètres (12) et (13) ( voir fig. 2) programment respectivement la puissance et la durée de fonctionnement du second moteur (9), ce qui permet d'une part d'adapter la préssion exercée par le piston(li) en fonction des caractéristiques do chaque patient, de chaque mélange de produits médicamenteux et de la profondeur d'introduction de l'aiguille (4) et, d'autre part, de choisir la quantité constanto de solu- tion qui sera administrée lors de chaque pénétration de l'aiguille (4).Two potentiometers (12) and (13) (see fig. 2) respectively program the power and the operating time of the second motor (9), which allows on the one hand to adapt the pressure exerted by the piston (li) according to the characteristics of each patient, each mixture of medicinal products and the insertion depth of the needle (4) and, on the other hand, to choose the constanto amount of solution that will be administered during each needle penetration (4).

Un troisième potentiomètre (14) ( voir fig. 2) permet de synchroniser très précisément le fonctionnement des deux moteurc (7) et (9). Le moteur (9) qui actionne le piston (il) entre ainsi en fonction uniquement lorsque le premier moteur (7) a fait pénétrer l'aiguille (4) sous la surface cutanée. Dés que ce dernier (7) commence à assurer le retrait de l'aiguille (4), le second moteur (9) s'arrète de fonctionner.Cela permet d'éviter les partes de produits médicamenteux coûteuses, tachant les patienta et le divan d'examen, génant le praticien, l'empéchant de connaître la quantité de produits réellement administrée, de codifier précisément les actes accomplis et, ainsi, de ne pas se situer inutileent au dessus ou, de façon inefficace, en dessous du seuil minimum d' éfficacité thérapeutique.A third potentiometer (14) (see fig. 2) allows very precise synchronization of the operation of the two motors (7) and (9). The motor (9) which actuates the piston (it) thus comes into operation only when the first motor (7) has made the needle (4) penetrate under the skin surface. As soon as the latter (7) begins to ensure the withdrawal of the needle (4), the second motor (9) stops operating.This avoids the cost of expensive drug products, staining the patienta and the couch of examination, annoying the practitioner, preventing him from knowing the quantity of products actually administered, from codifying precisely the acts performed and, thus, not being unnecessary point above or, in an ineffective way, below the minimum threshold of therapeutic efficacy.

Une butée mobile (15) règle la profondeur de pénétration de l'aiguille (4) en limitant l'amplitude du mouvement de la premier crémaillèrc (8).A movable stop (15) adjusts the penetration depth of the needle (4) by limiting the amplitude of movement of the first rack (8).

Un bouton poussoir (16) permet, lorsque le premier moteur (7) a fait pénetrer l'aiguille (4) à la profondeur programmée, de continuer a faire fonctionner le second moteur (9) qui actionnera le piston (li) tant que lb praticien appuiera sur ce bouton (16)* L'opérateur peut ainsi adminis- trier en certains endroits, et quand il le désire, une quantité de mélante médicamenteux supérieure à celle qu'il a programmé.A push button (16) allows, when the first motor (7) has penetrated the needle (4) to the programmed depth, to continue to operate the second motor (9) which will actuate the piston (li) as long as lb practitioner will press on this button (16) * The operator can thus administer in certain places, and when he wishes it, a quantity of medicated drug greater than that which he programmed.

L'énergie nécessaire au fonctionnement du dispositif peut titre fournie par des piles (18) contenues par la poignée (17), ou par l'intermèdiaire d'une prise mâle (19) destinée à recevoir la prise femelle (20) d'un cordon d'alimentation dont l'autre ertréiiité est constituée par un transformateur (21) relié lorque le dispositif ne fonctionne pas sur piles, au secteur par une prise (22). The energy necessary for the operation of the device can title supplied by batteries (18) contained by the handle (17), or by the intermediary of a male plug (19) intended to receive the female plug (20) of a power cord whose other ertréiiité is constituted by a transformer (21) connected lorque the device does not work on batteries, to the sector by a plug (22).

Selon une variante, un détecteur électronique de résistance (23) du second moteur (9) peut être relié au microprocesseur (5) qui actionne un signal sonore ou augmente progressivement la puissance de ce moteur (9), tant que la force développée par le piston (11) reste insuffisante pour vaincre la résistance interne opposée par la région cutanée concernée. Cela permet aux praticiens n'ayant pas l'expérience do cette technique thérapeutique de travailler éfficacenent très rapidement en dispo sant d'une préssion d'injection automatiquement adaptée au: circonstances rencontrées. Alternatively, an electronic resistance detector (23) of the second motor (9) can be connected to the microprocessor (5) which activates an audible signal or gradually increases the power of this motor (9), as long as the force developed by the piston (11) remains insufficient to overcome the internal resistance opposed by the cutaneous region concerned. This allows practitioners who do not have experience of this therapeutic technique to work efficiently very quickly by having an injection pressure automatically adapted to the circumstances encountered.

Dans la forme de réalisation selon la figure 4, un circuit élec tronque sensible à des variations de conductibilité de quelques microampères (24) peut prélever des micro-courants au niveau de la pointe de l'aiguille (4) ( dont la partie postèrieure métallique (25) vient se fixer sur l'embout de la seringue (3) au niveau d'un support métallique (26) relié électriquement à ce circuit (24) ) lorsqu'un interrupteurpotentiomètre (27) est actionné par l'utilisateur. Un cabine porte à son extrémité une électrode (28) tenue par la main du patient, et, à l'autre bout, une fiche mâle destinée à Stro introduite dans la fiche femelle (30) reliée à ce circuit (24). Dés que ce dernier (24) détecte une très légè- re augmentation de la conductibilité électrique au niveau d'un point de la surface cutanée, un signal sonore est émis. Cela permet au praticien, avec le même appareil de détecter les points d'acupuncture sur la région cutanée à traiter. In the embodiment according to FIG. 4, a truncated electrical circuit sensitive to variations in conductivity of a few microamps (24) can pick up micro-currents at the point of the needle (4) (including the metal rear part (25) is fixed on the tip of the syringe (3) at a metal support (26) electrically connected to this circuit (24)) when a potentiometer switch (27) is actuated by the user. A cabin carries at its end an electrode (28) held by the patient's hand, and, at the other end, a male plug intended for Stro inserted in the female plug (30) connected to this circuit (24). As soon as the latter (24) detects a very slight increase in electrical conductivity at a point on the skin surface, an audible signal is emitted. This allows the practitioner, with the same device, to detect acupuncture points on the skin region to be treated.

Un circuit électronique générateur d'un courant de stimulation de type faradique (31) peut administrer cette stimulation électrique au niveau de la pointe de l'aiguille (4) lorsqu'un interrupteur-potentiomètre (32) est actionné par l'utilisateur. Cela permet au praticien de disposer0 avec ive meao appareils d'une voie d'abord complémentaire do la pathologie à traiter.An electronic circuit generating a faradic-type stimulation current (31) can administer this electrical stimulation at the tip of the needle (4) when a switch-potentiometer (32) is actuated by the user. This allows the practitioner to have a complementary approach to the pathology to be treated with ive meao devices.

Selon une troisième variante, le premier moteur électrique (7) pout être remplacé par un système mécanique (roue dentée qui, lorsque l'utilisateur appuie sur la gachette, anise d'un mouvement alternatif la crélaillère assurant la pénétration et le retrait de l'aiguille ). According to a third variant, the first electric motor (7) can be replaced by a mechanical system (toothed wheel which, when the user presses on the trigger, anises the rack by reciprocating movement ensuring penetration and withdrawal of the needle ).

le dispositif selon l'innovation est particulièrement destiné à la pratique de la mésothérapie.  the device according to the innovation is particularly intended for the practice of mesotherapy.

Claims (5)

REVENDICATIONS i) Dispositif pour administrer - ou prélever - des produits li- guides, ainsi que des micro-courants caractérisé en ce qu'il comporte un bati (i) dont la partie supèrieure pourvue d'une fenètre transparen- te et amovible (2) renferme une seringue (3) munie d'une aiguille (4). i) Device for administering - or collecting - guide products, as well as micro-currents, characterized in that it comprises a frame (i), the upper part of which is provided with a transparent and removable window (2) contains a syringe (3) with a needle (4). Un nicro-circuit électronique (5) commande, lorsque l'utilisateur appuie sur une vachette (6), le fonctionnement t - d'un premier moteur électrique (7) qui anime d'un mouvement alternatif une crémaillère (8) assurant la pénétration et le retrait de l'aiguille (4).An electronic micro-circuit (5) controls, when the user presses on a cowhide (6), the operation t - of a first electric motor (7) which drives a reciprocating rack (8) ensuring penetration and withdrawing the needle (4). - d'un second moteur électrique (9) qui actionne, par l'intermédiaire d'une seconde crémallère (10), le piston (11) à l'intérieur de la se rings (3). - a second electric motor (9) which actuates, via a second rack (10), the piston (11) inside the rings (3). Deux potentiomètres (12) et (13) programment respectivement la puissance et la durée de fonctionnement du second moteur (9).Two potentiometers (12) and (13) respectively program the power and the operating time of the second motor (9). Un troisième potentiomètre (14) permet de synchroniser très précisément le fonctionnement des deux moteurs (7 > et (9).A third potentiometer (14) allows the operation of the two motors (7> and (9) to be very precisely synchronized. Une butée mobile (15) permet de régler la profondeur de pénétration de l'aiguille (4) en limitant l'amplitude du mouvement de la première créez aillère (8).A movable stop (15) makes it possible to adjust the penetration depth of the needle (4) by limiting the amplitude of the movement of the first create aileron (8). Un bouton poussoir (16) permet, lorsque le premier moteur (7) a rait Pé- nétrer l'aiguille (4) à la profondeur programmée, de continuer à faire fonctionner le second moteur (9) qui actionnera le piston (11) tant que l'utilisateur appuiera sur ce bouton (16).A push button (16) allows, when the first motor (7) has penetrated the needle (4) at the programmed depth, to continue to operate the second motor (9) which will actuate the piston (11) while the user will press this button (16). La poignée (t7) renferme des piles (18), ainsi qu'une prise mâle (19) destinée à recevoir la prise femelle (20) d'un cordon d'alimentation dont l'autre extrémité est constituée par un transformateur (21) relié, lorsque le dispositif ne fonctionne pas sur piles, au secteur par une prise (22). The handle (t7) contains batteries (18), as well as a male plug (19) intended to receive the female plug (20) of a power cord whose other end is constituted by a transformer (21) connected, when the device does not run on batteries, to the mains by a socket (22). 2) Dispositif selon la revendication 2 caractérisé en ce qu'un détecteur électronique de résistance (23) du second moteur (g) peut être relié au micro-circuit électronique (5) qui actionne un signal sonore ou augmente progressivement la puissance de ce noteur (9), tant que la force développée par le piston (11) reste insuffisante pour vaincre la résistance interne opposée par la région cutanée concernée. 2) Device according to claim 2 characterized in that an electronic resistance detector (23) of the second motor (g) can be connected to the electronic micro-circuit (5) which activates a sound signal or gradually increases the power of this notor (9), as long as the force developed by the piston (11) remains insufficient to overcome the internal resistance opposed by the cutaneous region concerned. 3) Dispositif selon la revendication 3 caractérisé en ce qu'un circuit électronique sensible à des variations de conductibilité de quelques micro-ampères (24) peut prélever des micro-courant; au niveau de la pointe de l'aiguille (4) ( dont la partie postérieure métallique (25) rient se fixer sur l'embout do la seringue (3) au niveau d'un support métallique (26) relié électriquement à ce circuit (24) ) lora- qu'un interrupt.ur-potentioaètre (27) est actionne par l'utilisateur. 3) Device according to claim 3 characterized in that an electronic circuit sensitive to variations in conductivity of a few micro-amps (24) can draw micro-current; at the point of the needle (4) (the rear metal part (25) of which is fixed to the tip of the syringe (3) at the level of a metal support (26) electrically connected to this circuit ( 24)) when a switch on the potentiometer (27) is actuated by the user. Un cabl. porte à son estrmité une électrode (28) tenue par la main du patient et, à l'autre bout, une fiche mile (29) destinée à être introduite dans la fiche femelle (30) reliée à ce circuit (24). Dés que ce dernier (24) détecte une très légère augmentation de la conductibilité électrique au niveau d'un point de la surface cutanée, un signal sonore est émis.A cable. carries at its estrmité an electrode (28) held by the patient's hand and, at the other end, a mile plug (29) intended to be inserted into the female plug (30) connected to this circuit (24). As soon as the latter (24) detects a very slight increase in electrical conductivity at a point on the skin surface, an audible signal is emitted. 4) Dispositif selon la revendication 4 caractérisé en ce qu'un circuit électronique générateur d'un courant de stimulation de type faradique (31) peut administrer cette stimulation au niveau de la pointe de l'aiguille (4) lorsqu'un interrupteur-potentiomètre (32) est actionné par l'utilisateur. 4) Device according to claim 4 characterized in that an electronic circuit generating a faradic type stimulation current (31) can administer this stimulation at the tip of the needle (4) when a switch-potentiometer (32) is operated by the user. 5) Dispositif selon la revendication 5 caractérisé en ce que le moteur électrique (7) peut être remplacé par un système mécanique (roue dentée qui, lorsque l'utilisateur appuie sur la gachette, anime d'un mouvement alternatif la crémaillère assurant la pénétration et le retrait de l'aiguille ).  5) Device according to claim 5 characterized in that the electric motor (7) can be replaced by a mechanical system (toothed wheel which, when the user presses the trigger, activates with an alternating movement the rack ensuring penetration and withdrawal of the needle).
FR8715383A 1987-11-03 1987-11-03 Mesotherapeutic injector with microprocessor Withdrawn FR2622457A1 (en)

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