EP2129597A1 - Device for dispensing and dosing a fluid comprising fluidic means for controlling the dispensing duration of said fluid - Google Patents

Device for dispensing and dosing a fluid comprising fluidic means for controlling the dispensing duration of said fluid

Info

Publication number
EP2129597A1
EP2129597A1 EP08787825A EP08787825A EP2129597A1 EP 2129597 A1 EP2129597 A1 EP 2129597A1 EP 08787825 A EP08787825 A EP 08787825A EP 08787825 A EP08787825 A EP 08787825A EP 2129597 A1 EP2129597 A1 EP 2129597A1
Authority
EP
European Patent Office
Prior art keywords
fluid
dosing
wheel
dispensing
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08787825A
Other languages
German (de)
French (fr)
Inventor
Denis Marin
Serge Sonie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omega Pharma Capital NV
Original Assignee
Omega Pharma Capital NV
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 Omega Pharma Capital NV filed Critical Omega Pharma Capital NV
Publication of EP2129597A1 publication Critical patent/EP2129597A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/38—Details of the container body
    • B65D83/384—Details of the container body comprising an aerosol container disposed in an outer shell or in an external container
    • B65D83/386—Details of the container body comprising an aerosol container disposed in an outer shell or in an external container actuation occurring by moving the aerosol container relative to the outer shell or external container
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
    • A61B18/0218—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques with open-end cryogenic probe, e.g. for spraying fluid directly on tissue or via a tissue-contacting porous tip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery

Definitions

  • the present invention relates to the field of a metered distribution of a fluid contained in an aerosol for a given time on a given surface.
  • the present invention relates more particularly to a dispensing device and dosages of a fluid whose distribution time is controlled over time for each dose.
  • the device according to the invention is intended more particularly, but not exclusively, for dermatitis such as warts, corns, growths and brown spots.
  • WO2006 / 114533 discloses a device for controlling the delivery of a fluid, particularly in terms of duration and quantity for several doses.
  • Said device comprises a fluid reserve in the form of an aerosol. It also comprises means for triggering the release of the fluid from the reserve through an ejection nozzle, said means being coupled to a timer system controlling the duration of release of said fluid for a given number of doses or variable depending on the stored fluid and the amount of fluid diffused with each use.
  • the timer system is of the mechanical type: it is formed by a gears gear.
  • a device comprising such a timer system has a number of disadvantages. Firstly, the delivery of the fluid with such a device is accompanied by a noise generated by the clockwork mechanism constituting the timer system. However, it was found that such noise caused the user, a voltage generating thereby a certain apprehension about the use of such a device.
  • the timer system is formed by an assembly of at least six separate pieces.
  • the assembly of the timer system therefore requires some precision when assembling the parts together. It also imposes a non-negligible assembly and assembly time.
  • a device for delivering a fluid proves to be particularly expensive given the number of parts necessary for the realization of the timer system and their specific character.
  • the invention aims in particular to overcome the disadvantages of the patent application WO2006 / 114533 described above by providing a reassuring device, secure and quiet, allowing the distribution of fluid doses for a fixed period.
  • the object of the invention is also to propose a dispensing device having manufacturing costs lower than those of a device comprising a clockwork mechanism.
  • the invention relates to a device for dispensing and dosing a fluid, of the type comprising a body provided with an ejection nozzle, said body having a reserve of fluid in form.
  • an aerosol, fluid release means from the reserve to the ejection nozzle comprising a fluid control wheel adapted to be rotated about its axis by drive means, so as to pass from a standby position to a final dosing position of the fluid.
  • the device is remarkable in that it comprises means for controlling the speed of rotation of said wheel to allow the release of the fluid for a predetermined period, said control means comprising a fluidic retarder coupled with the control wheel.
  • the duration of distribution of the fluid is controlled by means of a fluid acting on the speed of rotation of the fluid release control wheel.
  • the action of the fluid makes it possible to obtain a constant and reproducible rotational speed over time.
  • the fluid therefore acts on the control wheel by reliably delaying the movement of said wheel which is advantageously driven, as will be seen, by a tension spring.
  • the fluidic retarder therefore has the advantage of being used as a timer.
  • the fluidic retarder comprises a pinion mounted on an axis in frictional contact with a viscous fluid, said pinion meshing with the control wheel.
  • control wheel is driven by an elastic element, of the spring type, said elastic element being fixed on said wheel so as to be in a deformed state when said wheel is in the waiting position of fluid dosing.
  • the fluid has a friction torque of between 0.05 and 0.08 Newton.Meter, and preferably 0.068 Newton.Meter, the elastic element having a stiffness of between 3 and 8 Newtons, and preferably 5.3 Newtons.
  • the elastic element is fixed on the control wheel so as to be in a state at rest when the control wheel is in the final dosing position of the fluid.
  • the device comprises means for keeping the control wheel in its waiting position for dosing the fluid.
  • the holding means comprise a lever arm adapted to be in abutment with a lug formed on one of the faces of the wheel.
  • the device comprises means for stopping the movement of the wheel in its final fluid dosing position.
  • said stop means comprise a stop tab, formed on the face of the wheel, adapted to abut with the lever arm.
  • the control wheel comprises a substantially circular rib provided with the lug and the stop tab of the lever arm which are arranged relative to one another at an angular spacing of between 180 and 300 degrees.
  • control wheel comprises a complementary rib, said complementary rib being arranged with the rib to form a guide rail of the lever arm.
  • control wheel is moved from its final position to its waiting position for dosing the fluid by means of a reset lever secured to said wheel.
  • FIG. 1 illustrates a perspective view of a device for dispensing and dosing a fluid according to the invention
  • FIG. 2 illustrates an exploded view of the device of FIG. 1
  • Figures 3a and 3b illustrate a view of the interior of the two half-shells constituting the device of Figure 1
  • FIG. 4 illustrates a view of the fluid release control wheel of the device of FIG. 1.
  • a device 1 for dispensing and dosing of a fluid More specifically, a device 1 is described which makes it possible to apply a determined quantity of a fluid, according to a determined duration of application, in order to treat a specific area of skin presenting a dermal infection, such as warts or brown spots. .
  • the fluid used for the treatment of this type of infection will have specific properties. Similarly, for each of these infections, the appropriate periods of application of the fluid will be specified below.
  • the device 1 for dispensing and dosing a fluid comprises a body 2 provided with an ejection nozzle 3.
  • the body 2 is formed of two half-shells 20, 21 snapped onto one another, each of the half-shells constituting a lateral face of the device 1.
  • a container constituting the reserve 4 fluid is housed between these two half-shells 20, 21.
  • the reserve 4 comprises an inner bag and a crimped pump which, once depressed, releases the gas (not shown).
  • the chosen gas in this case R152A, is injected into the pocket and between the walls of the pocket and the container, so as to create, with the air around the pocket, a pressure, between the walls, greater than the equilibrium pressure (or saturation vapor pressure) of the R152A in the pocket in order to be able to use the device in all positions (360 °).
  • the ratio of these pressures will be determined according to the rate of ejection of the desired gas. Care should be taken to avoid, however, that the gap between them is too great to avoid a gas diffusion too fast.
  • a volume of 2 g to 5.5 g (corresponding to a pressure between 6.0 bar and 8.0 bar at 20 ° C.) between the walls of the bag and the container and from 11 g to 15 g (corresponding to a pressure of between 6.0 and 8.0 bar at 20 ° C.). C) inside the pocket, to allow 15 to 20 ejections of gas, and thus 15 to 20 doses of treatment.
  • the reserve 4 is maintained between the half-shells 20, 21 in a receiving envelope 12 provided for this purpose.
  • Said envelope 12 is pivotally mounted on the edge of the bottom of the shell 21 around a transverse axis AAl.
  • the triggering of the control of the release of the fluid from the reserve 4 to the ejection nozzle 3 is effected by means of a trigger button 14 formed in the body 2, and more particularly in the half-shell 21.
  • the trigger button 12 is connected, via intermediate pieces which will be described later, a wheel controlling the release but also the stop of the release of the fluid.
  • This fluid control wheel is subsequently called "cam wheel 5".
  • Said cam wheel 5 is able to pass from a pre-release position of a fluid dose (fluid dosing waiting position) to an end position of release of the fluid dose (final dosing position of the fluid). fluid), and vice versa. This passage from one position to another is performed by rotating the cam wheel 5 about its axis.
  • the transition from the end position to the fluid dosing standby position is carried out manually, by means of a reset lever 11 provided on one of the faces of the cam wheel 5 (see FIG. .
  • the transition from the waiting position to the final dosing position of the fluid is carried out by drive means.
  • the drive means consist of a spring 9 chosen to provide the energy required for the delivery of a determined fluid dose.
  • Said spring is connected by one of its ends to the cam wheel 5, and the other end to the half-shell 20 (see Figure 3b).
  • the spring 9 is fixed, wound between the cam wheel 5 and the resetting lever 11, so as to be in a deformed state when the cam wheel 5 is in the dosing waiting position. fluid, and in a state of near-idle when the cam wheel 5 is in the final dosing position of the fluid.
  • the device 1 comprises means 6 for monitoring the speed of rotation of the cam wheel 5. More particularly, the control means 6 are configured to reduce the speed of rotation of the wheel cam 5, and therefore increase the duration of application of the fluid with respect to the duration to which the fluid would have been delivered if the device 1 did not comprise control means.
  • the control means 6 comprise a fluidic retarder which cooperates with the cam wheel 5.
  • the fluidic retarder consists of a viscous liquid contained in a receptacle traversed by an axis 8 having a degree of freedom in rotation.
  • the axis 8 is integral with the cam wheel 5 via a pinion 7.
  • the fluidic retarder is arranged with the cam wheel 5 so that the teeth of the pinion 7, fixedly mounted on the axis 6, meshing with the teeth of the cam wheel 5.
  • the friction force of the fluid exerted on the axis 8 in motion depends in particular on its rotational speed, but also on the intrinsic properties of the fluid (viscosity of the fluid, density of the fluid).
  • the speed of rotation of the axis 8 is a function of the stiffness of the spring 9.
  • the slowing of the cam wheel is a function of two main data: the friction torque of the fluid and the stiffness of the spring.
  • the trigger button 14 is connected to the cam wheel 5 via the casing 12 provided with a rocking lever 10.
  • the rocking lever 10 comprises an arm 100 adapted to come into contact with the cam wheel 5.
  • FIG. 4 illustrates a view of one face of the cam wheel 5, the other face carrying the reset lever 11.
  • Said cam wheel 5 comprises a guide rib 71 intended to guide, at its outer periphery.
  • the guide rib 71 is provided, on its outer periphery 72, with a lug 73 for locking the cam wheel 5 driven by the spring 9, the cam wheel 5 being retained by bearing the face 74 of the lug 73 against the arm 100 of the lever toggles 10. This blocking position corresponds to the waiting position of the dosing release of the fluid.
  • the cam wheel 5 further comprises a stop tab 75 for stopping the movement of said wheel under the drive of the spring 9.
  • the movement of the wheel is on the one hand stopped by the support of the paw of stop 75 against the arm 100 of the rocker lever 10 and secondly by a stop located on the other side of the cam wheel. Stopper which comes to bear on an abutment housed on the lower shell. This stop position corresponds to the final dosing position of the fluid.
  • said stop tab 75 is preceded by a boss 77.
  • the movement imposed on the arm 100 of the rocking lever 10 by the boss 77 causes the actual stopping of the delivery of the fluid.
  • the final stop of the cam wheel 5 by contacting the stop tab against the arm 100 of the rocking lever 10 causes, for its part, the locking of the casing 12, prohibiting any new dispensing of fluid without previous reset.
  • the stop tab is formed on the guide rib 71, so as to present, with the ergot
  • the stop tab 75 has a U shape.
  • the cam wheel 5 comprises a second rib 76 for holding and guiding the arm 100 of the rocking lever 10 between the two ribs 71 and 76.
  • This second rib 76 has the advantage of not requiring the spring effect necessary for a rocking lever 10 when the cam wheel 5 comprises only one rib 71.
  • the operation of the device 1 for dispensing and dosing a fluid according to the invention is as follows.
  • the reset lever 11 In order to initiate the distribution of the fluid, the reset lever 11 is turned, which drives the cam wheel 5. The lever 11 is rotated until the arm 100 of the rocker lever 10 comes to lock against the 10 at the same time, the spring 9, held between the reset lever 11 and the cam wheel 5, is driven by the movement of the cam wheel 5, wrapping on itself .
  • priming is carried out by turning the reset lever 11 about a half turn.
  • the device 1 is then waiting to dispense a dose of fluid.
  • the dispensing operation of a fluid dose is started by manually pushing the trigger button 14 from front to back or vice versa, depending on the starting position.
  • said trigger button 14 drives the casing 12 in a pivoting movement toward the half-shell 21, driving with it the lifting of the rocker lever 10 above the lug 73.
  • the lug 73 n ' being more restrained by the rocking lever 10, the cam wheel 5 is rotated, driven under the action of the spring 9.
  • the cam wheel 5 rotates the pinion 7 coupled to the axis 8, under the action of the tensile force of the spring.
  • the movement of the axis 8, in contact with the viscous fluid, is braked under the action of the friction forces of the viscous fluid on said axis 8.
  • the envelope 12 by pivoting, presses against the bottom of the container constituting the reserve 4, giving the opening stroke of the crimped pump in the container constituting the reserve, which releases the gas.
  • the gas is then delivered until the arm 100 of the rocker lever 10 comes into contact with the boss 77 of the cam wheel 5.
  • the cam wheel 5 continues its rotational movement until the stop tab 75 10 At this time, the pivoting movement of the casing 12 is locked, and the device 1 in the final position of delivering a dose of the fluid.
  • the ejection nozzle 3 comprises a nozzle whose dimensions and shape are chosen according to the gas used and its properties, as well as the pressure maintained in the container pocket 4.
  • the nozzle further comprises a transparent tip 13 provided, at its free end, with a protective cap 130.
  • the tip 13 will have a length corresponding to the optimum distance required between the output nozzle and the skin, so as to prevent fluid projections on the walls of the protective tip or excessive evaporation of the fluid.
  • the nozzle further includes apertures 131 for releasing gas pressure.
  • the fluid to be applied to the skin area to be treated will have a boiling temperature of -20 ° C or lower and a lower latent heat of vaporization. or equal to 200 kJ / kg.
  • the boiling temperature makes it possible to obtain the necessary cold, and, the relative weakness of the latent heat of vaporization, a rapid evaporation which induces a good transmission of the cold without risking a flow of fluid outside the zone. 'application.
  • the use of the fluid according to the invention makes it possible to obtain a "dry” and intense cold, while limiting the aggressiveness of the treatment on the application zone.
  • the fluid is a type 152A HFC which has a boiling point of -24 ° C. and a latent heat of vaporization equal to 160 kJ / kg.
  • the duration of application of such a fluid is determined according to the use for which said device is intended.
  • the fluid when it comes to warts treatment, the fluid will advantageously ejected for 3 seconds and when will be to treat brown spots, for 1 to 2 seconds.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Dispersion Chemistry (AREA)
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  • Heart & Thoracic Surgery (AREA)
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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

The invention relates to a device (1) for dispensing and dosing a fluid, of the type comprising a body (2) with an ejection nozzle (3), said body (2) including a storage (4) of a fluid in the form of an aerosol, means for conveying the fluid from the storage to the ejection nozzle (5) including a fluid control wheel (5) that can be rotated about the axis thereof by driving means so as to move from a waiting position to a final fluid-dosing position, wherein said device (1) is characterised in that it comprises a means (6) for controlling the rotation speed of said wheel (5) for releasing the fluid for a predetermined duration, said control means (6) comprising a fluidic retarder coupled with the control wheel (5).

Description

DISPOSITIF DE DISTRIBUTION ET DE DOSAGE D'UN FLUIDE DEVICE FOR DISPENSING AND ASSAYING A FLUID
COMPRENANT DES MOYENS FLUIDIQUES DE CONTROLE DE LA DUREECOMPRISING FLUIDIC MEANS FOR CONTROLLING THE DURATION
DE DISTRIBUTION DUDIT FLUIDEDISPENSING SAID FLUID
La présente invention se rapporte au domaine d'une distribution dosée d'un fluide contenu dans un aérosol pendant un temps déterminé sur une surface donnée.The present invention relates to the field of a metered distribution of a fluid contained in an aerosol for a given time on a given surface.
La présente invention se rapporte plus particulièrement à un dispositif de distribution et de dosages d'un fluide dont la durée de distribution est contrôlée dans le temps pour chaque dose.The present invention relates more particularly to a dispensing device and dosages of a fluid whose distribution time is controlled over time for each dose.
Le dispositif selon l'invention est destiné plus particulièrement, mais non exclusivement, à des dermites telles que des verrues, cors, excroissances et tâches brunes .The device according to the invention is intended more particularly, but not exclusively, for dermatitis such as warts, corns, growths and brown spots.
On connaît de la demande de brevet internationale WO2006/114533 un dispositif permettant de contrôler la délivrance d'un fluide, notamment en terme de durée et de quantité pour plusieurs doses. Ledit dispositif comprend une réserve de fluide sous forme d'un aérosol. Il comprend en outre des moyens pour déclencher la libération du fluide de la réserve à travers une buse d'éjection, lesdits moyens étant couplés à un système de minuterie contrôlant la durée de libération dudit fluide pour un nombre de doses déterminées ou variable en fonction du fluide stocké et de la quantité de fluide diffusé à chaque usage. Le système de minuterie est de type mécanique : il est formé par un engrenage de roues dentées.International patent application WO2006 / 114533 discloses a device for controlling the delivery of a fluid, particularly in terms of duration and quantity for several doses. Said device comprises a fluid reserve in the form of an aerosol. It also comprises means for triggering the release of the fluid from the reserve through an ejection nozzle, said means being coupled to a timer system controlling the duration of release of said fluid for a given number of doses or variable depending on the stored fluid and the amount of fluid diffused with each use. The timer system is of the mechanical type: it is formed by a gears gear.
Un dispositif comprenant un tel système de minuterie présente cependant un certain nombre d'inconvénients. Tout d'abord, la délivrance du fluide avec un tel dispositif est accompagnée d'un bruit généré par le mécanisme d'horlogerie constituant le système de minuterie. Or, il a été constaté qu'un tel bruit provoquait, chez l'utilisateur, une tension générant de ce fait une certaine appréhension quant à l'utilisation d'un tel dispositif.However, a device comprising such a timer system has a number of disadvantages. Firstly, the delivery of the fluid with such a device is accompanied by a noise generated by the clockwork mechanism constituting the timer system. However, it was found that such noise caused the user, a voltage generating thereby a certain apprehension about the use of such a device.
Ensuite, le système de minuterie est formé par un assemblage d'au moins six pièces distinctes. Le montage du système de minuterie requiert en conséquence une certaine précision lors de l'assemblage des pièces les unes avec les autres. Il impose en outre une durée de montage et d'assemblage non négligeable.Then, the timer system is formed by an assembly of at least six separate pieces. The assembly of the timer system therefore requires some precision when assembling the parts together. It also imposes a non-negligible assembly and assembly time.
Le risque d'un dysfonctionnement du dispositif de délivrance, lié par exemple à des frottements non contrôlés entre les pièces du système de minuterie ou bien à un blocage d'engrenage, ne peut en outre être totalement écarté. Par ailleurs, un tel mécanisme entraînant de nombreuses pièces risque de fragiliser le fonctionnement.The risk of a malfunction of the delivery device, linked for example to uncontrolled friction between the parts of the timer system or to a gear lock, can not be completely ruled out. Moreover, such a mechanism causing many parts may weaken the operation.
Enfin, un dispositif de délivrance d'un fluide s'avère être particulièrement coûteux compte tenu du nombre de pièces nécessaires à la réalisation du système de minuterie et leur caractère spécifique.Finally, a device for delivering a fluid proves to be particularly expensive given the number of parts necessary for the realization of the timer system and their specific character.
L'invention vise notamment à pallier les inconvénients de la demande de brevet WO2006/114533 précédemment décrits en proposant un dispositif rassurant, sécurisant et silencieux, permettant la distribution de doses de fluide pendant une durée déterminée.The invention aims in particular to overcome the disadvantages of the patent application WO2006 / 114533 described above by providing a reassuring device, secure and quiet, allowing the distribution of fluid doses for a fixed period.
L'invention a également pour objet de proposer un dispositif de distribution d'un fluide dont l'assemblage des pièces est simplifié et facilité. L'invention a également pour objet de proposer un dispositif de distribution offrant une meilleure résistance aux chocs.Another object of the invention is to propose a fluid dispensing device whose assembly of parts is simplified and facilitated. Another object of the invention is to propose a dispensing device offering a better impact resistance.
Enfin, l'invention a également pour objet de proposer un dispositif de distribution présentant des coûts de fabrication inférieurs a ceux d'un dispositif comprenant un mécanisme d'horlogerie.Finally, the object of the invention is also to propose a dispensing device having manufacturing costs lower than those of a device comprising a clockwork mechanism.
A cet effet, et selon un premier aspect, l'invention concerne un dispositif pour la distribution et le dosage d'un fluide, du type comprenant un corps pourvu d'une buse d'éjection, ledit corps comportant une réserve de fluide sous forme d'un aérosol, des moyens de libération du fluide depuis la réserve jusqu'à la buse d'éjection comprenant une roue de commande du fluide apte à être mise en rotation autour de son axe par des moyens d'entraînement, de sorte à passer d'une position d'attente à une position finale de dosage du fluide. Le dispositif est remarquable en ce qu'il comporte des moyens de contrôle de la vitesse de rotation de ladite roue pour permettre la libération du fluide pendant une durée déterminée, lesdits moyens de contrôle comportant un ralentisseur fluidique couplé avec la roue de commande .For this purpose, and according to a first aspect, the invention relates to a device for dispensing and dosing a fluid, of the type comprising a body provided with an ejection nozzle, said body having a reserve of fluid in form. an aerosol, fluid release means from the reserve to the ejection nozzle comprising a fluid control wheel adapted to be rotated about its axis by drive means, so as to pass from a standby position to a final dosing position of the fluid. The device is remarkable in that it comprises means for controlling the speed of rotation of said wheel to allow the release of the fluid for a predetermined period, said control means comprising a fluidic retarder coupled with the control wheel.
Ainsi, la durée de distribution du fluide est contrôlée au moyen d'un fluide agissant sur la vitesse de rotation de la roue de commande de libération du fluide. De manière surprenante, l'action du fluide permet l'obtention d'une vitesse de rotation constante et reproductible dans le temps. Le fluide agit donc sur la roue de commande en temporisant de manière fiable le mouvement de ladite roue qui est entraînée avantageusement, comme on le verra, par un ressort de traction. Le ralentisseur fluidique présente donc l'avantage de pouvoir être utilisé comme minuterie. Selon une configuration particulière de l'invention, le ralentisseur fluidique comprend un pignon monté sur un axe en contact par frottement avec un fluide visqueux, ledit pignon s 'engrenant avec la roue de commande.Thus, the duration of distribution of the fluid is controlled by means of a fluid acting on the speed of rotation of the fluid release control wheel. Surprisingly, the action of the fluid makes it possible to obtain a constant and reproducible rotational speed over time. The fluid therefore acts on the control wheel by reliably delaying the movement of said wheel which is advantageously driven, as will be seen, by a tension spring. The fluidic retarder therefore has the advantage of being used as a timer. According to a particular configuration of the invention, the fluidic retarder comprises a pinion mounted on an axis in frictional contact with a viscous fluid, said pinion meshing with the control wheel.
Selon une configuration particulière de l'invention, la roue de commande est entraînée par un élément élastique, du type ressort, ledit élément élastique étant fixé sur ladite roue de manière à être dans un état déformé lorsque ladite roue est en position d'attente de dosage du fluide.According to a particular configuration of the invention, the control wheel is driven by an elastic element, of the spring type, said elastic element being fixed on said wheel so as to be in a deformed state when said wheel is in the waiting position of fluid dosing.
Avantageusement, le fluide présente un couple de frottement compris entre 0,05 et 0,08 Newton.Mètre , et de préférence 0,068 Newton.Mètre, l'élément élastique présentant une raideur comprise entre 3 et 8 Newtons, et de préférence 5,3 Newtons .Advantageously, the fluid has a friction torque of between 0.05 and 0.08 Newton.Meter, and preferably 0.068 Newton.Meter, the elastic element having a stiffness of between 3 and 8 Newtons, and preferably 5.3 Newtons.
Il peut être également avantageusement prévu que l'élément élastique soit fixé sur la roue de commande de manière à être dans un état au repos lorsque la roue de commande est en position finale de dosage du fluide.It can also be advantageously provided that the elastic element is fixed on the control wheel so as to be in a state at rest when the control wheel is in the final dosing position of the fluid.
Avantageusement, le dispositif comprend des moyens pour maintenir la roue de commande dans sa position d'attente de dosage du fluide. Selon un mode de réalisation particulier de l'invention, les moyens de maintien comprennent un bras de levier apte à être en butée avec un ergot ménagé sur l'une des faces de la roue.Advantageously, the device comprises means for keeping the control wheel in its waiting position for dosing the fluid. According to a particular embodiment of the invention, the holding means comprise a lever arm adapted to be in abutment with a lug formed on one of the faces of the wheel.
II peut être prévu également que le dispositif comprenne des moyens d'arrêt du mouvement de la roue dans sa position finale de dosage du fluide. Avantageusement, lesdits moyens d'arrêt comprennent une patte d'arrêt, ménagée sur la face de la roue, apte à être en butée avec le bras de levier. Avantageusement, la roue de commande comprend une nervure sensiblement circulaire pourvue de l'ergot et de la patte d'arrêt du bras de levier lesquels sont disposés l'un par rapport à l'autre selon un écartement angulaire compris entre 180 et 300 degrés.It may also be provided that the device comprises means for stopping the movement of the wheel in its final fluid dosing position. Advantageously, said stop means comprise a stop tab, formed on the face of the wheel, adapted to abut with the lever arm. Advantageously, the control wheel comprises a substantially circular rib provided with the lug and the stop tab of the lever arm which are arranged relative to one another at an angular spacing of between 180 and 300 degrees.
Avantageusement, la roue de commande comporte une nervure complémentaire, ladite nervure complémentaire étant agencée avec la nervure pour former un rail de guidage du bras du levier.Advantageously, the control wheel comprises a complementary rib, said complementary rib being arranged with the rib to form a guide rail of the lever arm.
Avantageusement, la roue de commande est déplacée de sa position finale à sa position d'attente de dosage du fluide au moyen d'une manette de réarmement solidaire de ladite roue.Advantageously, the control wheel is moved from its final position to its waiting position for dosing the fluid by means of a reset lever secured to said wheel.
On comprendra mieux l'invention à l'aide de la description, faite ci-après à titre purement explicatif, d'un mode de réalisation de l'invention, en référence aux figures annexées : la figure 1 illustre une vue en perspective d'un dispositif de distribution et de dosage d'un fluide selon l'invention ; - la figure 2 illustre une vue éclatée du dispositif de la figure 1 ; les figures 3a et 3b illustrent une vue de l'intérieur des deux demi-coques constituant le dispositif de la figure 1 ; et - la figure 4 illustre une vue de la roue de commande de libération du fluide du dispositif de la figure 1.The invention will be better understood from the following description, given purely for explanatory purposes, of one embodiment of the invention, with reference to the appended figures: FIG. 1 illustrates a perspective view of a device for dispensing and dosing a fluid according to the invention; FIG. 2 illustrates an exploded view of the device of FIG. 1; Figures 3a and 3b illustrate a view of the interior of the two half-shells constituting the device of Figure 1; and FIG. 4 illustrates a view of the fluid release control wheel of the device of FIG. 1.
En relation avec les figures 1, 2, 3a et 3b, il est décrit un dispositif 1 permettant la distribution et le dosage d'un fluide. Il est décrit plus précisément un dispositif 1 permettant l'application d'une quantité déterminée d'un fluide, selon une durée d'application déterminée, en vue de traiter une zone de peau déterminée présentant une infection dermique, du type verrues ou tâches brunes.With reference to FIGS. 1, 2, 3a and 3b, there is described a device 1 for dispensing and dosing of a fluid. More specifically, a device 1 is described which makes it possible to apply a determined quantity of a fluid, according to a determined duration of application, in order to treat a specific area of skin presenting a dermal infection, such as warts or brown spots. .
Comme on le verra plus loin, le fluide utilisé pour le traitement de ce type d'infections présentera des propriétés spécifiques. De même, il sera précisé plus loin, pour chacune de ces infections, les durées appropriées d'application du fluide.As will be seen below, the fluid used for the treatment of this type of infection will have specific properties. Similarly, for each of these infections, the appropriate periods of application of the fluid will be specified below.
Le dispositif 1 pour la distribution et le dosage d'un fluide comprend un corps 2 pourvu d'une buse 3 d'éjection.The device 1 for dispensing and dosing a fluid comprises a body 2 provided with an ejection nozzle 3.
Le corps 2 est formé de deux demi-coques 20, 21 encliquetées l'une sur l'autre, chacune des demi-coques constituant une face latérale du dispositif 1.The body 2 is formed of two half-shells 20, 21 snapped onto one another, each of the half-shells constituting a lateral face of the device 1.
Un récipient constituant la réserve 4 de fluide est logé entre ces deux demi-coques 20, 21. La réserve 4 comprend une poche intérieure et une pompe sertie qui, une fois enfoncée, libère le gaz (non représenté). Le gaz choisi, en l'occurrence le R152A, est injecté dans la poche et entre les parois de la poche et du récipient, de sorte à créer, avec l'air autour de la poche, une pression, entre les parois, supérieure à la pression d'équilibre (ou pression de vapeur saturante) du R152A dans la poche afin notamment de pouvoir utiliser l'appareil dans toutes les positions (360°). Le rapport de ces pressions sera déterminé en fonction de la vitesse d'éjection du gaz souhaitée. On prendra soin d'éviter cependant que l'écart entre celles-ci soit trop important afin d'éviter une diffusion de gaz trop rapide. Ainsi, et préférentiellement, il sera prévu un volume de 2 g à 5,5 g (correspondant à une pression comprise entre 6,0 bars à 8,0 bars à 200C) entre les parois de la poche et du récipient et de 11 g à 15 g (correspondant à une pression comprise entre 6,0 et 8,0 bars à 200C) à l'intérieur de la poche, pour permettre 15 à 20 éjections de gaz, et donc de 15 à 20 doses de traitement.A container constituting the reserve 4 fluid is housed between these two half-shells 20, 21. The reserve 4 comprises an inner bag and a crimped pump which, once depressed, releases the gas (not shown). The chosen gas, in this case R152A, is injected into the pocket and between the walls of the pocket and the container, so as to create, with the air around the pocket, a pressure, between the walls, greater than the equilibrium pressure (or saturation vapor pressure) of the R152A in the pocket in order to be able to use the device in all positions (360 °). The ratio of these pressures will be determined according to the rate of ejection of the desired gas. Care should be taken to avoid, however, that the gap between them is too great to avoid a gas diffusion too fast. Thus, and preferably, there will be provided a volume of 2 g to 5.5 g (corresponding to a pressure between 6.0 bar and 8.0 bar at 20 ° C.) between the walls of the bag and the container and from 11 g to 15 g (corresponding to a pressure of between 6.0 and 8.0 bar at 20 ° C.). C) inside the pocket, to allow 15 to 20 ejections of gas, and thus 15 to 20 doses of treatment.
La réserve 4 est maintenue entre les demi-coques 20, 21 dans une enveloppe de réception 12 prévue à cet effet. Ladite enveloppe 12 est montée pivotante sur le bord du fond de la coque 21 autour d'un axe transversal AAl.The reserve 4 is maintained between the half-shells 20, 21 in a receiving envelope 12 provided for this purpose. Said envelope 12 is pivotally mounted on the edge of the bottom of the shell 21 around a transverse axis AAl.
Le déclenchement de la commande de la libération du fluide depuis la réserve 4 vers la buse 3 d'éjection est effectué au moyen d'un bouton déclencheur 14 ménagé dans le corps 2, et plus particulièrement dans la demi-coque 21.The triggering of the control of the release of the fluid from the reserve 4 to the ejection nozzle 3 is effected by means of a trigger button 14 formed in the body 2, and more particularly in the half-shell 21.
Le bouton déclencheur 12 est relié, par le biais de pièces intermédiaires qui seront décrites plus loin, à une roue commandant la libération mais également l'arrêt de la libération du fluide. Cette roue de commande de fluide est par la suite nommée « roue came 5 » .The trigger button 12 is connected, via intermediate pieces which will be described later, a wheel controlling the release but also the stop of the release of the fluid. This fluid control wheel is subsequently called "cam wheel 5".
Ladite roue came 5 est apte à passer d'une position de pré- libération d'une dose de fluide (position d'attente de dosage du fluide) à une position de fin de libération de la dose de fluide (position finale de dosage du fluide), et inversement . Ce passage d'une position à une autre s'effectue par rotation de la roue came 5 autour son axe.Said cam wheel 5 is able to pass from a pre-release position of a fluid dose (fluid dosing waiting position) to an end position of release of the fluid dose (final dosing position of the fluid). fluid), and vice versa. This passage from one position to another is performed by rotating the cam wheel 5 about its axis.
Plus particulièrement, le passage de la position finale à la position d'attente de dosage de fluide est effectué manuellement, au moyen d'une manette de réarmement 11 ménagée sur l'une des faces de la roue came 5 (cf. figure 2). En revanche, le passage de la position d'attente à la position finale de dosage du fluide est effectué par des moyens d'entraînement. Les moyens d'entraînement consistent en un ressort 9 choisi pour fournir l'énergie nécessaire à la délivrance d'une dose de fluide déterminée.More particularly, the transition from the end position to the fluid dosing standby position is carried out manually, by means of a reset lever 11 provided on one of the faces of the cam wheel 5 (see FIG. . On the other hand, the transition from the waiting position to the final dosing position of the fluid is carried out by drive means. The drive means consist of a spring 9 chosen to provide the energy required for the delivery of a determined fluid dose.
Ledit ressort est relié par l'une de ses extrémités à la roue came 5, et par l'autre extrémité à la demi-coque 20 (cf. figure 3b). Selon une configuration particulière de l'invention, le ressort 9 est fixé, enroulé entre la roue came 5 et la manette de réarmement 11, de manière à être dans un état déformé lorsque la roue came 5 est en position d'attente de dosage du fluide, et dans un état de quasi repos lorsque la roue came 5 est en position finale de dosage du fluide.Said spring is connected by one of its ends to the cam wheel 5, and the other end to the half-shell 20 (see Figure 3b). According to a particular configuration of the invention, the spring 9 is fixed, wound between the cam wheel 5 and the resetting lever 11, so as to be in a deformed state when the cam wheel 5 is in the dosing waiting position. fluid, and in a state of near-idle when the cam wheel 5 is in the final dosing position of the fluid.
Afin de contrôler la durée d'application du fluide, le dispositif 1 comporte des moyens de contrôle 6 de la vitesse de rotation de la roue came 5. Plus particulièrement, les moyens de contrôle 6 sont configurés pour réduire la vitesse de rotation de la roue came 5, et par conséquent augmenter la durée d'application du fluide par rapport à la durée à laquelle le fluide aurait été délivré si le dispositif 1 ne comportait pas de moyen de contrôle.In order to control the duration of application of the fluid, the device 1 comprises means 6 for monitoring the speed of rotation of the cam wheel 5. More particularly, the control means 6 are configured to reduce the speed of rotation of the wheel cam 5, and therefore increase the duration of application of the fluid with respect to the duration to which the fluid would have been delivered if the device 1 did not comprise control means.
Les moyens de contrôle 6 comprennent un ralentisseur fluidique lequel coopère avec la roue came 5. Le ralentisseur fluidique consiste en un liquide visqueux contenu dans un réceptacle traversé par un axe 8 présentant un degré de liberté en rotation. L'axe 8 est solidaire de la roue came 5 par l 'intermédiaire d'un pignon 7. Ainsi, et comme illustré sur la figure 3b, le ralentisseur fluidique est agencé avec la roue came 5 de manière à ce que les dents du pignon 7, monté fixe sur l'axe 6, s'engrènent avec les dents de la roue came 5.The control means 6 comprise a fluidic retarder which cooperates with the cam wheel 5. The fluidic retarder consists of a viscous liquid contained in a receptacle traversed by an axis 8 having a degree of freedom in rotation. The axis 8 is integral with the cam wheel 5 via a pinion 7. Thus, and as illustrated in FIG. 3b, the fluidic retarder is arranged with the cam wheel 5 so that the teeth of the pinion 7, fixedly mounted on the axis 6, meshing with the teeth of the cam wheel 5.
Ainsi, lorsque la commande de la libération du fluide est déclenchée, la roue came 5 est entraînée en rotation autour de son axe par le ressort 9. La roue came 5, dans son mouvement, entraîne le pignon 7. Sous cette action, le pignon 7, relié de manière fixe à l'axe 8, entraîne ce dernier dans son mouvement. Le mouvement de rotation de l'axe 8 est freiné sous l'action des forces de frottement du fluide agissant sur celui-ci.Thus, when the control of the release of the fluid is triggered, the cam wheel 5 is rotated about its axis by the spring 9. The cam wheel 5, in its movement, drives the pinion 7. Under this action, the pinion 7, fixedly connected to the axis 8, drives the latter in its movement. The rotational movement of the axis 8 is braked under the action of the friction forces of the fluid acting on it.
La force de frottement du fluide exercée sur l'axe 8 en mouvement est fonction notamment de sa vitesse de rotation, mais également des propriétés intrinsèques du fluide (viscosité du fluide, masse volumique du fluide). La vitesse de rotation de l'axe 8 est fonction de la raideur du ressort 9. En d'autres termes, le ralentissement de la roue came est fonction de deux données principales : le couple de frottement du fluide et la raideur du ressort.The friction force of the fluid exerted on the axis 8 in motion depends in particular on its rotational speed, but also on the intrinsic properties of the fluid (viscosity of the fluid, density of the fluid). The speed of rotation of the axis 8 is a function of the stiffness of the spring 9. In other words, the slowing of the cam wheel is a function of two main data: the friction torque of the fluid and the stiffness of the spring.
Selon une configuration particulière, il est avantageusement choisi d'associer un ralentisseur fluidique conférant un couple de frottement de 0.068 Newton.Mètre à un ressort de raideur de 5,3 Newtons.According to a particular configuration, it is advantageously chosen to associate a fluidic retarder conferring a friction torque of 0.068 Newton.Meter to a stiffness spring of 5.3 Newtons.
Le bouton déclencheur 14 est relié à la roue came 5 par l'intermédiaire de l'enveloppe 12 pourvue d'un levier bascule 10. Le levier bascule 10 comprend un bras 100 apte à venir en contact la roue came 5.The trigger button 14 is connected to the cam wheel 5 via the casing 12 provided with a rocking lever 10. The rocking lever 10 comprises an arm 100 adapted to come into contact with the cam wheel 5.
La figure 4 illustre une vue d'une face de la roue came 5, l'autre face portant la manette de réarmement 11. Ladite roue came 5 comprend une nervure de guidage 71 destinée à guider, au niveau de sa périphérie extérieureFIG. 4 illustrates a view of one face of the cam wheel 5, the other face carrying the reset lever 11. Said cam wheel 5 comprises a guide rib 71 intended to guide, at its outer periphery.
72, le bras 100 du levier bascule 10.72, the arm 100 of the lever toggles 10.
La nervure de guidage 71 est pourvue, sur sa périphérie extérieure 72, d'un ergot 73 permettant de bloquer la roue came 5 entraînée par le ressort 9, la roue came 5 étant retenue par appui de la face 74 de l'ergot 73 contre le bras 100 du levier bascule 10. Cette position de blocage correspond à la position d'attente de libération de dosage du fluide.The guide rib 71 is provided, on its outer periphery 72, with a lug 73 for locking the cam wheel 5 driven by the spring 9, the cam wheel 5 being retained by bearing the face 74 of the lug 73 against the arm 100 of the lever toggles 10. This blocking position corresponds to the waiting position of the dosing release of the fluid.
La roue came 5 comporte en outre une patte d'arrêt 75 permettant d'arrêter le mouvement de ladite roue sous l'entraînement du ressort 9. Le mouvement de la roue est d'une part arrêté par l'appui de la patte d'arrêt 75 contre le bras 100 du levier bascule 10 et d'autre part par une butée située sur l'autre face de la roue came. Butée gui vient en appui sur une butée logée sur la coque inférieure. Cette position d'arrêt correspond à la position finale de dosage du fluide.The cam wheel 5 further comprises a stop tab 75 for stopping the movement of said wheel under the drive of the spring 9. The movement of the wheel is on the one hand stopped by the support of the paw of stop 75 against the arm 100 of the rocker lever 10 and secondly by a stop located on the other side of the cam wheel. Stopper which comes to bear on an abutment housed on the lower shell. This stop position corresponds to the final dosing position of the fluid.
Avantageusement, ladite patte d'arrêt 75 est précédée d'un bossage 77. Le mouvement imposé au bras 100 du levier bascule 10 par le bossage 77 entraîne l'arrêt effectif de la délivrance du fluide. L'arrêt final de la roue came 5 par contact de la patte d'arrêt contre le bras 100 du levier bascule 10 entraîne, quant à lui, le verrouillage de l'enveloppe 12, interdisant toute nouvelle distribution de fluide sans réarmement préalable.Advantageously, said stop tab 75 is preceded by a boss 77. The movement imposed on the arm 100 of the rocking lever 10 by the boss 77 causes the actual stopping of the delivery of the fluid. The final stop of the cam wheel 5 by contacting the stop tab against the arm 100 of the rocking lever 10 causes, for its part, the locking of the casing 12, prohibiting any new dispensing of fluid without previous reset.
Avantageusement, la patte d'arrêt est ménagée sur la nervure de guidage 71, de sorte à présenter, avec l'ergotAdvantageously, the stop tab is formed on the guide rib 71, so as to present, with the ergot
73, un écartement angulaire de l'ordre de 200 degrés. Avantageusement, la patte d'arrêt 75 présente une forme en U.73, an angular spacing of the order of 200 degrees. Advantageously, the stop tab 75 has a U shape.
Selon une configuration avantageuse, la roue came 5 comporte une deuxième nervure 76 permettant de maintenir et de guider le bras 100 du levier bascule 10 entre les deux nervures 71 et 76. Cette deuxième nervure 76 a pour avantage de ne pas nécessiter l'effet ressort nécessaire pour un levier bascule 10 lorsque la roue came 5 ne comprend qu'une seule nervure 71.In an advantageous configuration, the cam wheel 5 comprises a second rib 76 for holding and guiding the arm 100 of the rocking lever 10 between the two ribs 71 and 76. This second rib 76 has the advantage of not requiring the spring effect necessary for a rocking lever 10 when the cam wheel 5 comprises only one rib 71.
Par ailleurs, il est bien entendu évident que la manette de réarmement 11 et le bouton déclencheur 14 sont agencés pour s'étendre à l'extérieur des demi-coques 20, 21.Moreover, it is of course obvious that the reset lever 11 and the trigger button 14 are arranged to extend outside the half-shells 20, 21.
Le fonctionnement du dispositif 1 de distribution et de dosage d'un fluide selon l'invention est le suivant.The operation of the device 1 for dispensing and dosing a fluid according to the invention is as follows.
Afin d'amorcer la distribution du fluide, on tourne la manette de réarmement 11, qui entraine dans son mouvement, la roue came 5. La manette 11 est tournée jusqu'à ce que le bras 100 du levier bascule 10 vienne se bloquer contre l'ergot 73 de maintien du levier bascule 10. Dans le même temps, le ressort 9, maintenu entre la manette de réarmement 11 et la roue came 5, est entraîné par le mouvement de la roue came 5, s 'enroulant sur lui-même. De préférence, l'amorçage est réalisé en tournant d'un demi tour environ la manette de réarmement 11.In order to initiate the distribution of the fluid, the reset lever 11 is turned, which drives the cam wheel 5. The lever 11 is rotated until the arm 100 of the rocker lever 10 comes to lock against the 10 at the same time, the spring 9, held between the reset lever 11 and the cam wheel 5, is driven by the movement of the cam wheel 5, wrapping on itself . Preferably, priming is carried out by turning the reset lever 11 about a half turn.
Le dispositif 1 est alors en attente de distribution d'une dose de fluide.The device 1 is then waiting to dispense a dose of fluid.
L'opération de distribution d'une dose de fluide est lancée en poussant manuellement le bouton déclencheur 14 d'avant en arrière ou inversement, suivant la position de départ. Dans son mouvement, ledit bouton déclencheur 14 entraîne l'enveloppe 12 dans un mouvement de pivotement en direction de la demi-coque 21, entraînant avec elle le soulèvement du levier bascule 10 au dessus de l'ergot 73. L'ergot 73 n'étant plus retenu par le levier bascule 10, la roue came 5 est mise en rotation, entraînée sous l'action du ressort 9.The dispensing operation of a fluid dose is started by manually pushing the trigger button 14 from front to back or vice versa, depending on the starting position. In its movement, said trigger button 14 drives the casing 12 in a pivoting movement toward the half-shell 21, driving with it the lifting of the rocker lever 10 above the lug 73. The lug 73 n ' being more restrained by the rocking lever 10, the cam wheel 5 is rotated, driven under the action of the spring 9.
La roue came 5 entraîne en rotation le pignon 7 couplé à l'axe 8, sous l'action de la force de traction du ressort. Le mouvement de l'axe 8, en contact avec le fluide visqueux, est freiné sous l'action des forces de frottement du fluide visqueux sur ledit axe 8.The cam wheel 5 rotates the pinion 7 coupled to the axis 8, under the action of the tensile force of the spring. The movement of the axis 8, in contact with the viscous fluid, is braked under the action of the friction forces of the viscous fluid on said axis 8.
Dans le même temps, l'enveloppe 12, en pivotant, vient appuyer sur le fond du récipient constituant la réserve 4, donnant la course d'ouverture de la pompe sertie dans le récipient constituant la réserve, qui libère le gaz. Le gaz est alors délivré jusqu'à ce que le bras 100 du levier bascule 10 vienne en contact avec le bossage 77 de la roue came 5. La roue came 5 poursuit son mouvement de rotation jusqu'à ce que la patte d'arrêt 75 rencontre le levier bascule 10. A cet instant, le mouvement de pivotement de l'enveloppe 12 est verrouillé, et le dispositif 1 en position finale de délivrance d'une dose du fluide.At the same time, the envelope 12, by pivoting, presses against the bottom of the container constituting the reserve 4, giving the opening stroke of the crimped pump in the container constituting the reserve, which releases the gas. The gas is then delivered until the arm 100 of the rocker lever 10 comes into contact with the boss 77 of the cam wheel 5. The cam wheel 5 continues its rotational movement until the stop tab 75 10 At this time, the pivoting movement of the casing 12 is locked, and the device 1 in the final position of delivering a dose of the fluid.
Afin de procéder à une nouvelle délivrance de fluide, il sera procédé à nouveau à un réamorçage du dispositif 1, par actionnement de la manette de réarmement 11. Le dispositif 1 est alors à nouveau dans sa position d'attente de délivrance du fluide.In order to proceed to a new delivery of fluid, it will be carried out again a rebooting of the device 1, by actuation of the reset lever 11. The device 1 is then again in its waiting position for delivery of the fluid.
Concernant la buse 3 d'éjection, celle-ci comprend un gicleur dont les dimensions et forme sont choisies en fonction du gaz utilisé et de ses propriétés, ainsi que de la pression maintenue dans la poche du récipient 4. La buse comprend en outre un embout 13 transparent pourvu, à son extrémité libre, d'un opercule de protection 130. L'embout 13 présentera une longueur correspond à la distance optimale requise entre la sortie du gicleur et la peau, de sorte à éviter les projections de fluide sur les parois de l'embout de protection ou une évaporation trop importante du fluide. La buse comprend en outre des ouvertures 131 pour la libération de la pression du gaz.Regarding the ejection nozzle 3, it comprises a nozzle whose dimensions and shape are chosen according to the gas used and its properties, as well as the pressure maintained in the container pocket 4. The nozzle further comprises a transparent tip 13 provided, at its free end, with a protective cap 130. The tip 13 will have a length corresponding to the optimum distance required between the output nozzle and the skin, so as to prevent fluid projections on the walls of the protective tip or excessive evaporation of the fluid. The nozzle further includes apertures 131 for releasing gas pressure.
En vue du traitement d'infections telles que des verrues ou des tâches brunes, le fluide destiné à être appliqué sur la zone de peau à traiter présentera une température d'ébullition inférieure ou égale à -200C et une chaleur latente de vaporisation inférieure ou égale à 200 kJ/kg. La combinaison particulière de ces deux caractéristiques du fluide permet d'obtenir une efficacité optimale pour les cryotraitements ou cryoapplications considérés. En effet, la température d'ébullition permet d'obtenir le froid nécessaire, et, la relative faiblesse de la chaleur latente de vaporisation, une évaporation rapide qui induit une bonne transmission du froid sans risquer un écoulement de fluide en dehors de la zone d'application. Par conséquent, l'utilisation du fluide selon l'invention permet d'obtenir un froid « sec » et intense, tout en limitant l'agressivité du traitement sur la zone d'application. Dans un exemple de réalisation, le fluide est un HFC de type 152A qui présente une température d'ébullition de -24°C et une chaleur latente de vaporisation égale à 160 kJ/kg.For the treatment of infections such as warts or brown spots, the fluid to be applied to the skin area to be treated will have a boiling temperature of -20 ° C or lower and a lower latent heat of vaporization. or equal to 200 kJ / kg. The particular combination of these two characteristics of the fluid makes it possible to obtain optimum efficiency for the cryoprocessings or cryoapplications considered. Indeed, the boiling temperature makes it possible to obtain the necessary cold, and, the relative weakness of the latent heat of vaporization, a rapid evaporation which induces a good transmission of the cold without risking a flow of fluid outside the zone. 'application. Therefore, the use of the fluid according to the invention makes it possible to obtain a "dry" and intense cold, while limiting the aggressiveness of the treatment on the application zone. In an exemplary embodiment, the fluid is a type 152A HFC which has a boiling point of -24 ° C. and a latent heat of vaporization equal to 160 kJ / kg.
La durée d'application d'un tel fluide est déterminée selon l'usage auquel ledit dispositif est destiné. Ainsi, lorsqu'il s'agit d'un traitement de verrues, le fluide sera avantageusement éjecté pendant 3 secondes et lorsqu'il s'agira de traiter des tâches brunes, pendant 1 à 2 secondes.The duration of application of such a fluid is determined according to the use for which said device is intended. Thus, when it comes to warts treatment, the fluid will advantageously ejected for 3 seconds and when will be to treat brown spots, for 1 to 2 seconds.
L'invention est décrite dans ce qui précède à titre d'exemple. Il est entendu que l'homme du métier est à même de réaliser différentes variantes de l ' invention sans pour autant sortir du cadre du brevet. The invention is described in the foregoing by way of example. It is understood that the skilled person is able to realize different variants of the invention without departing from the scope of the patent.

Claims

REVENDICATIONS
1. Dispositif (1) pour la distribution et le dosage d'un fluide, du type comprenant un corps (2) pourvu d'une buse (3) d'éjection, ledit corps (2) comportant une réserve (4) de fluide sous forme d'un aérosol, des moyens de libération du fluide depuis la réserve jusqu'à la buse d'éjection (3) comprenant une roue (5) de commande du fluide apte à être mise en rotation autour de son axe par des moyens d'entraînement, de sorte à passer d'une position d'attente à une position finale de dosage du fluide, ledit dispositif (1) étant caractérisé en ce qu'il comporte des moyens de contrôle (6) de la vitesse de rotation de ladite roue (5) pour permettre la libération du fluide pendant une durée déterminée, lesdits moyens de contrôle (6) comportant un ralentisseur fluidique couplé avec la roue (5) de commande .1. Device (1) for dispensing and dosing a fluid, of the type comprising a body (2) provided with an ejection nozzle (3), said body (2) comprising a reserve (4) of fluid in the form of an aerosol, means for releasing the fluid from the reserve to the ejection nozzle (3) comprising a fluid control wheel (5) able to be rotated about its axis by means drive, so as to move from a waiting position to a final dosing position of the fluid, said device (1) being characterized in that it comprises means (6) for controlling the rotation speed of the said wheel (5) for allowing the release of the fluid for a determined period of time, said control means (6) comprising a fluidic retarder coupled with the control wheel (5).
2. Dispositif (1) pour la distribution et le dosage d'un fluide selon la revendication 1, caractérisé en ce que le ralentisseur fluidique comprend un pignon (7) monté sur un axe ( 8 ) en contact par frottement avec un fluide visqueux, ledit pignon s 'engrenant avec la roue (5) de commande.2. Device (1) for dispensing and dosing a fluid according to claim 1, characterized in that the fluidic retarder comprises a pinion (7) mounted on an axis (8) in frictional contact with a viscous fluid, said pinion meshing with the wheel (5) control.
3. Dispositif (1) pour la distribution et le dosage d'un fluide selon la revendication 1 ou la revendication 2 , caractérisé en ce que la roue ( 5 ) de commande est entraînée par un élément élastique (9), du type ressort, ledit élément élastique (9) étant fixé sur ladite roue ( 5 ) de manière à être dans un état déformé lorsque ladite roue (5) est en position d'attente de dosage du fluide. Device (1) for distributing and dosing a fluid according to Claim 1 or Claim 2, characterized in that the control wheel (5) is driven by a spring-like elastic element (9). said elastic element (9) being fixed on said wheel (5) so as to be in a deformed state when said wheel (5) is in the fluid dosing standby position.
4. Dispositif (1) pour la distribution et le dosage d'un fluide selon la revendication 3, caractérisé en ce que le fluide présente un couple de frottement compris entre 0,05 et 0,08 Newton.Mètre , l'élément élastique (9) présentant une raideur comprise entre 3 et 8 Newtons4. Device (1) for dispensing and dosing a fluid according to claim 3, characterized in that the fluid has a friction torque between 0.05 and 0.08 Newton.Mètre, the elastic element ( 9) having a stiffness of between 3 and 8 Newtons
5. Dispositif (1) pour la distribution et le dosage d'un fluide selon la revendication 3 ou la revendication 4, caractérisé en ce que le fluide présente un couple de frottement de 0,068 Newton.Mètre, l'élément élastique (9) présentant une raideur de 5,3 Newtons.5. Device (1) for dispensing and dosing a fluid according to claim 3 or claim 4, characterized in that the fluid has a friction torque of 0.068 Newton.Meter, the elastic member (9) having a stiffness of 5.3 Newtons.
6. Dispositif (1) pour la distribution et le dosage d'un fluide selon l'une quelconque des revendications 3 à 5, caractérisé en ce que l'élément élastique (9) est fixé sur la roue (5) de commande de manière à être dans un état au repos lorsque la roue ( 5 ) de commande est en position finale de dosage du fluide.6. Device (1) for distributing and dosing a fluid according to any one of claims 3 to 5, characterized in that the elastic element (9) is fixed on the control wheel (5) in such a way that to be in an idle state when the control wheel (5) is in the final dosing position of the fluid.
7. Dispositif (1) pour la distribution et le dosage d'un fluide selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend des moyens pour maintenir la roue (5) de commande dans sa position d'attente de dosage du fluide, lesdits moyens de maintien comprenant un bras de levier (10) apte à être en butée avec un ergot (73) ménagé sur l'une des faces de la roue (5) .7. Device (1) for dispensing and dosing a fluid according to any one of the preceding claims, characterized in that it comprises means for maintaining the wheel (5) control in its waiting position of dosing the fluid, said holding means comprising a lever arm (10) adapted to abut with a lug (73) formed on one of the faces of the wheel (5).
8. Dispositif (1) pour la distribution et le dosage d'un fluide selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend en outre des moyens d'arrêt du mouvement de la roue dans sa position finale de dosage du fluide. 8. Device (1) for dispensing and dosing a fluid according to any one of the preceding claims, characterized in that it further comprises means for stopping the movement of the wheel in its final dosing position. fluid.
9. Dispositif (1) pour la distribution et le dosage d'un fluide selon la revendication précédente, caractérisé en ce que lesdits moyens d'arrêt comprennent une patte d'arrêt (75), ménagée sur la face de la roue (5), apte à être en butée avec le bras de levier (10).9. Device (1) for distributing and dosing a fluid according to the preceding claim, characterized in that said stop means comprise a stop tab (75) formed on the face of the wheel (5). , able to be in abutment with the lever arm (10).
10. Dispositif (1) pour la distribution et le dosage d'un fluide selon la revendication 9, caractérisé en ce que la roue (5) de commande comprend une nervure (72) sensiblement circulaire pourvue de l'ergot (73) et de la patte d'arrêt (75) du bras de levier (10) lesquels sont disposés l'un par rapport à l'autre selon un écartement angulaire compris entre 180 et 300 degrés.10. Device (1) for dispensing and dosing a fluid according to claim 9, characterized in that the wheel (5) comprises a substantially circular rib (72) provided with the lug (73) and the stop tab (75) of the lever arm (10) which are arranged relative to one another at an angular spacing between 180 and 300 degrees.
11. Dispositif (1) pour la distribution et le dosage d'un fluide selon la revendication 10, caractérisé en ce que la roue (5) de commande comporte une nervure complémentaire (76), ladite nervure complémentaire étant agencée avec la nervure (72) pour former un rail de guidage du bras de levier (10).11. Device (1) for dispensing and dosing a fluid according to claim 10, characterized in that the control wheel (5) comprises a complementary rib (76), said complementary rib being arranged with the rib (72). ) to form a guide rail of the lever arm (10).
12. Dispositif (1) pour la distribution et le dosage d'un fluide selon l'une quelconque des revendications précédentes, caractérisé en ce que la roue (5) de commande est déplacée de sa position finale à sa position d'attente de dosage du fluide au moyen d'une manette de réarmement (11) solidaire de ladite roue. 12. Device (1) for distributing and dosing a fluid according to any one of the preceding claims, characterized in that the control wheel (5) is moved from its final position to its dosing standby position. fluid by means of a reset lever (11) integral with said wheel.
EP08787825A 2007-03-20 2008-03-20 Device for dispensing and dosing a fluid comprising fluidic means for controlling the dispensing duration of said fluid Withdrawn EP2129597A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0753928A FR2913960B1 (en) 2007-03-20 2007-03-20 DEVICE FOR DISPENSING AND DOSING A FLUID COMPRISING FLUID MEANS FOR CONTROLLING THE TIME OF DISTRIBUTION OF SAID FLUID
PCT/FR2008/000378 WO2008135660A1 (en) 2007-03-20 2008-03-20 Device for dispensing and dosing a fluid comprising fluidic means for controlling the dispensing duration of said fluid

Publications (1)

Publication Number Publication Date
EP2129597A1 true EP2129597A1 (en) 2009-12-09

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EP08787825A Withdrawn EP2129597A1 (en) 2007-03-20 2008-03-20 Device for dispensing and dosing a fluid comprising fluidic means for controlling the dispensing duration of said fluid

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EP (1) EP2129597A1 (en)
FR (1) FR2913960B1 (en)
WO (1) WO2008135660A1 (en)

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Publication number Priority date Publication date Assignee Title
BE1025100B1 (en) * 2017-03-28 2018-10-30 Tatjana Yazgheche COMPOSITION AND ADAPTED DEVICE FOR TREATMENT OF WATERS, PARENTAL SPOTS, BROWN SPOTS
FR3076200B1 (en) 2017-12-28 2023-04-14 Cryobeauty Pharma APPLICATION NOZZLE FOR DEVICE FOR THE DERMO-COSMETIC TREATMENT OF CUTANEOUS BROWN SPOTS BY CYTO-SELECTIVE CRYOTHERAPY
CN111717531B (en) * 2020-06-22 2021-11-02 广州赞誉化妆品有限公司 Metering bottle cap

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Publication number Priority date Publication date Assignee Title
US3401849A (en) * 1966-05-24 1968-09-17 Robert L. Weber Low force metering valve
FR2885540B1 (en) 2005-04-28 2008-05-30 Persee Medica DEVICE FOR APPLYING A FLUID TO AN AREA TO BE TREATED COMPRISING A TIMER

Non-Patent Citations (1)

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Title
See references of WO2008135660A1 *

Also Published As

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WO2008135660A1 (en) 2008-11-13
FR2913960B1 (en) 2009-07-03
FR2913960A1 (en) 2008-09-26

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