WO2001078828A1 - Device for locally applying cold during a traumatic treatment of the skin - Google Patents

Device for locally applying cold during a traumatic treatment of the skin Download PDF

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Publication number
WO2001078828A1
WO2001078828A1 PCT/FR2001/001189 FR0101189W WO0178828A1 WO 2001078828 A1 WO2001078828 A1 WO 2001078828A1 FR 0101189 W FR0101189 W FR 0101189W WO 0178828 A1 WO0178828 A1 WO 0178828A1
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WO
WIPO (PCT)
Prior art keywords
application device
localized application
nozzle
frigories
cold
Prior art date
Application number
PCT/FR2001/001189
Other languages
French (fr)
Inventor
Jean-Jacques Benguigui
Bernadette Bertrand
Original Assignee
B.B.K
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
Priority claimed from FR0005054A external-priority patent/FR2807938B1/en
Priority claimed from FR0010357A external-priority patent/FR2812542B1/en
Application filed by B.B.K filed Critical B.B.K
Priority to BR0110176-5A priority Critical patent/BR0110176A/en
Priority to CA002406165A priority patent/CA2406165A1/en
Priority to AU2001254874A priority patent/AU2001254874A1/en
Priority to EP01927993A priority patent/EP1274481A1/en
Publication of WO2001078828A1 publication Critical patent/WO2001078828A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/10—Cooling bags, e.g. ice-bags
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
    • A61F2007/0075—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating using a Peltier element, e.g. near the spot to be heated or cooled

Definitions

  • the present invention relates to a device for localized application of cold during a traumatic treatment of the dermis such as dermography or hair removal, or even injections of products for restructuring the skin.
  • Such pigments are chosen not only as a function of the desired aesthetic effect but also of the desired duration of this so-called permanent effect which varies according to the habits of the subject such as the durations of exposure to the sun, the sensitivity of the skin, the speed cell regeneration or implantation depth.
  • Dermography is similar to tattooing but the penetration depth of the pigments in the dermis is generally lower, from 1 to 2 millimeters, if only because of the places of application which leave little space such as the eye area or the lips.
  • Permanent makeup can be practiced on any person, man or woman, of any age. In addition, it provides certain benefits for many types of population and to varying degrees such as sports people who do not see makeup flowing during the practice of their activities, people who have vision problems since the application specifies products especially on the contours is deleted, people with defects to be corrected such as scars, after-effects of accident or surgical intervention, or burns.
  • Dermography devices are of different types and are distributed commercially, regardless of the mechanism used, vibrating or connecting rod. The goal is to give a needle or several needles simultaneously a translational movement to penetrate the dermis and simultaneously implant the pigments in the pricked area.
  • anesthetics to inject are even more delicate to handle and require the recourse to a practitioner such as a dentist for the interventions on the face, which is not a solution. acceptable.
  • Analgesics or sedatives are prescribed only by doctors and must be administered beforehand, which implies certain additional constraints.
  • the present invention provides a device for localized cold application which overcomes the drawbacks of the means used to date and which provides an effective and controlled anesthetic effect, which is easy to handle, which is precise in temperature as in contour application, and which limits post-intervention trauma.
  • FIGS. 2A and 2B different heads intended to be adapted on this device
  • Figure 1 there is shown the complete device as it can be used to provide an anesthetic effect during the production of dermographies using suitable devices.
  • This device comprises a handle 1 0 and a body 1 2.
  • This body comprises internal elements and a housing provided with slots 14 for air circulation, and comprising a working head 1 6 on one of its faces.
  • the handle has no technical particularities except to allow a good grip of the device. It also allows guiding of the 1 8 wired power supply and control links of the various elements.
  • the body 1 2 and its content are detailed in Figure 3 and include a head part 1 6 of work, a support housing 20, portable, and means 22 for generating frigories.
  • the head part 1 6 of work comprises an end piece 24 of application having a given profile and means 26 for removably fixing this end piece on the support housing 20.
  • These nozzles have different configurations, in this case the one shown has a small and relatively narrow surface, also visible in FIG. 2A while other variants, such as that of FIG. 2B, make it possible to cover larger surfaces, disc-shaped.
  • the removable fastening means 26 advantageously consist of a cover 28, the peripheral flange 30 of which allows snap-fastening or screwing on the support housing 20.
  • This cover has in its center a cutout 32 to allow the passage of the tip while a collar 34, integral with this same tip, retains it.
  • This application nozzle is designed to come into contact with an applicator 36 which is a metal plate ensuring the transmission of the heat fluxes.
  • This applicator also supports a temperature sensor 38 which is integrated into the thickness itself so as to limit the measurement drifts.
  • This applicator 36 is in direct contact with the means 22 for generating frigories.
  • modules 40 with Peltier effect include quite advantageously a module 40 with Peltier effect.
  • a module generally comprises two ceramic plates, between which is disposed a succession of different positive and negative junctions, semiconductor type, connected in series.
  • Such modules are commercially available.
  • this module is connected to a direct current power supply, the current delivered makes it possible to generate a heat transfer from one face to the other so that one of the faces becomes cold while the other heats up.
  • the cold face is oriented towards the applicator. In order to allow an even more satisfactory exchange at the interface, it is useful to provide for the deposition of a thin layer 42 of thermal grease on either side of this module.
  • the heat which is produced on the upper face of the module must imperatively be removed, on the one hand, so as not to destroy the housing and, on the other hand, in order to improve the efficiency of this module.
  • a finned radiator 44 is provided, the base 46 of which is in intimate contact with the hot face of the Peltier module.
  • the fins provide air cooling but the amount of heat generated by the module, confined in a housing like the housing 1 0 of this device could cause an excessive increase in temperature.
  • an extension 48 is provided which makes it possible to house a heat extractor 50 with blades, surmounted by a grid 52.
  • This same extractor can also be provided with a safety device of known type, which interrupts operation in the event of overflow a temperature threshold.
  • the operation of the device according to the present invention is now described in its direct application to dermography.
  • the person to be dermographed can take over the device if they wish.
  • the Peltier module ensures the production of frigories on the face in contact with the applicator 36, through the layer 42 of thermal grease.
  • the frigories are transmitted by conduction to the nozzle 24 which, preferably metallic, conducts heat flows very well.
  • the temperature sensor 38 makes it possible to control the quantity of frigories generated by the Peltier module, so that, by means of an auxiliary console with a programmable microprocessor, it is simple to provide automatic regulation of the temperature with respect to a set value or with respect to a given curve, after stabilization.
  • the application tip 24 remains regulated at a temperature within a very limited range. This temperature is adjusted according to the sensitivity of the person, the characteristics of the dermis, the mode and means of dermography, in particular.
  • the device At the end of the dermography session, it is possible to leave the device applied for a longer period so as to avoid the after-effects as much as possible and the temperature can also be modified.
  • the device provides comfort for the person but also allows the practitioner to dermograph in the best conditions.
  • the cold in addition to the anesthetic effect, ensures a contraction of the lymphatic channels and other venules, so that there is a significant limitation of the formation of edemas and hematomas, knowing however that surface flow is about him inevitable and necessary for the implantation of pigments.
  • the tip should be adjusted, which is achieved extremely quickly by snap-fastening or screwing.
  • the heat produced it is emitted in the form of calorific radiations by the radiator 44, radiations which are conveyed by the air flow put into circulation by the extractor 50, the grid 52 having merely a protective role d '' access to the extractor blades.
  • thermometer In the event of a malfunction, a safety thermometer of known type ensures the supply of power to the Peltier module, while leaving the extractor in service if necessary to ensure faster cooling.
  • the console associated with a microprocessor which controls the temperature and the operation can also integrate a frequency converter to also control the operation dermography means and therefore the frequency and / or the power of penetration of the needle into the dermis.
  • the Peltier module is entirely suitable because it makes it possible to obtain frigories in a very short time, it is compact and light, so it can be integrated into the device, without the need for an auxiliary cold production plant.
  • the Peltier effect module selected for the generation of frigories is the preferred embodiment for its compactness, its speed of commissioning, its low inertia but any other means of production of frigories can be envisaged as long as it is possible. to house it in a handy support case.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

The invention concerns a device for locally applying cold during a traumatic treatment of the skin, characterised in that it comprises at least a portable support housing (20), provided with an application hub (24) and means for generating units of cold in said hub.

Description

DISPOSITIF D'APPLICATION LOCALISEE DE FROID DURANT UN TRAITEMENT TRAUMATISANT DU DERME DEVICE FOR LOCALIZED APPLICATION OF COLD DURING TRAUMATIZING TREATMENT OF DERMIS
La présente invention concerne un dispositif d'application localisée de froid durant un traitement traumatisant du derme tel que la dermographie ou l'épilation, voire les injections de produits pour la restructuration de la peau.The present invention relates to a device for localized application of cold during a traumatic treatment of the dermis such as dermography or hair removal, or even injections of products for restructuring the skin.
Dans de nombreux pays, on pratique le maquillage dit permanent qui est en réalité une dermographie de certaines parties du corps, notamment le visage avec des pigments spécifiques.In many countries, so-called permanent makeup is practiced, which is actually a dermography of certain parts of the body, in particular the face, with specific pigments.
De tels pigments sont choisis non seulement en fonction de l'effet esthétique recherché mais aussi de la durée souhaitée de cet effet dit permanent qui varie suivant les habitudes du sujet comme les durées d'exposition au soleil, la sensibilité de la peau, la vitesse de régénération cellulaire ou la profondeur d'implantation.Such pigments are chosen not only as a function of the desired aesthetic effect but also of the desired duration of this so-called permanent effect which varies according to the habits of the subject such as the durations of exposure to the sun, the sensitivity of the skin, the speed cell regeneration or implantation depth.
La dermographie s'apparente au tatouage mais la profondeur de pénétration des pigments dans le derme est généralement plus faible, de 1 à 2 millimètres, ne serait ce qu'en raison des lieux d'application qui laissent peu de place comme le contour des yeux ou les lèvres.Dermography is similar to tattooing but the penetration depth of the pigments in the dermis is generally lower, from 1 to 2 millimeters, if only because of the places of application which leave little space such as the eye area or the lips.
Le maquillage permanent peut être pratiqué sur toutes personnes, homme ou femme, de tout âge. De plus, il procure des avantages certains pour de nombreux types de population et à des degrés divers comme les personnes sportives qui ne voient pas le maquillage couler durant la pratique de leurs activités, les personnes qui ont des problèmes de vue puisque l'application précise des produits notamment sur les contours est supprimée, les personnes qui présentent des défauts à corriger tels que les cicatrices, les séquelles d'accident ou d'intervention chirurgicale, ou encore les brûlures.Permanent makeup can be practiced on any person, man or woman, of any age. In addition, it provides certain benefits for many types of population and to varying degrees such as sports people who do not see makeup flowing during the practice of their activities, people who have vision problems since the application specifies products especially on the contours is deleted, people with defects to be corrected such as scars, after-effects of accident or surgical intervention, or burns.
Les appareils de dermographie sont de différents types et sont distribués dans le commerce, quel que soit le mécanisme utilisé, vibrant ou à bielle. Le but est de conférer à une aiguille ou à plusieurs aiguilles simultanément un mouvement de translation pour pénétrer dans le derme et implanter simultanément les pigments dans la zone piquée.Dermography devices are of different types and are distributed commercially, regardless of the mechanism used, vibrating or connecting rod. The goal is to give a needle or several needles simultaneously a translational movement to penetrate the dermis and simultaneously implant the pigments in the pricked area.
De tels appareils sont décrits en détail notamment dans la demande de certificat d'utilité français N ° 2 636 240 ou dans la demande de brevet français N ° 2 747 928.Such devices are described in detail in particular in the French utility certificate application No. 2,636,240 or in the French patent application No. 2,747,928.
On sait que bien que la profondeur de pénétration est réduite, que les surfaces traitées sont limitées mais cette intervention reste douloureuse avec certains inconvénients supplémentaires.We know that although the penetration depth is reduced, that the treated surfaces are limited but this intervention remains painful with certain additional drawbacks.
En effet, il se trouve que les zones traitées, contour des yeux ou des lèvres et visage en général, sont très sensibles.Indeed, it turns out that the treated areas, around the eyes or lips and face in general, are very sensitive.
Du fait de la pénétration de la ou des aiguilles, il se produit localement une formation d'oedèmes avec perlage simultané de gouttes de sang et de lymphe. Outre le fait que cela perturbe l'exercice de l'opérateur qui manie le dermographe dont la précision du geste est altérée, la personne subissant la dermographie, en plus de la douleur, conserve quelques heures pour le moins un gonflement local de la zone dermographiée.Due to the penetration of the needle (s), edema occurs locally with simultaneous beading of drops of blood and lymph. In addition to the fact that this disturbs the exercise of the operator who handles the dermograph whose gesture is impaired, the person undergoing the dermography, in addition to the pain, retains for a few hours at least a local swelling of the dermographed area .
On sait que le froid atténue la douleur par une insensibilisation de la zone subissant ce froid et limite le choc post traumatique en diminuant ou pour le moins en limitant la formation d'oedèmes. Aussi, l'opérateur applique sur la zone à traiter un fluide frigo-accumulateur ou tout simplement un morceau de glace disposé dans une enveloppe pour transmettre les frigories mais en interdisant un contact direct avec la zone traitée.We know that cold alleviates pain by numbing the area undergoing this cold and limits post traumatic shock by reducing or at least limiting the formation of edema. Also, the operator applies to the area to be treated a refrigerant accumulator or simply a piece of ice placed in an envelope to transmit the frigories but by prohibiting direct contact with the treated area.
Une telle pratique présente de nombreux inconvénients. Tout d'abord, la précision d'application sur une zone limitée est très difficile, ensuite la condensation sur le bloc froid conduit à la formation de gouttes d'eau qui diluent les écoulements locaux et engendrent des essuyages plus nombreux, perturbant la pratique de l'art. De plus, la précision de refroidissement est très limitée car la température de travail est nécessairement à 0°C ou quelques degrés en dessous de zéro dans le cas de fluides spécifiques mais il n'y aucune possibilité de variations sauf à modifier la durée d'application sur la zone. Ceci est totalement empirique et la transmission de froid localement s'effectue dans de mauvaises conditions, de façon soit trop limitée, soit trop intense. L'effet anesthésiant est mal adapté et ceci est d'autant plus délicat que la zone traitée est étroite et sensible.Such a practice has many drawbacks. First of all, the precision of application on a limited area is very difficult, then condensation on the cold block leads to the formation of drops of water which dilute the local flows and generate more wiping, disturbing the practice of art. In addition, the cooling precision is very limited because the working temperature is necessarily at 0 ° C or a few degrees below zero in the case of specific fluids, but there is no possibility of variations except by modifying the duration of application on the area. This is completely empirical and the cold transmission locally takes place in poor conditions, either too limited or too intense. The anesthetic effect is ill-suited and this is all the more delicate as the area treated is narrow and sensitive.
On note aussi la manipulation malaisée du "glaçon" par l'opérateur. D'ailleurs, le glaçon peut difficilement être tenu par la personne dermographiée du fait de cette manipulation malaisée alors que cette solution présenterait des avantages certains car le dosage de l'effet anesthésiant, ajusté par la personne, et non par un tiers extérieur serait préférable.We also note the awkward handling of the "ice cube" by the operator. Moreover, the ice cube can hardly be held by the dermographed person because of this awkward manipulation whereas this solution would present certain advantages because the dosage of the anesthetic effect, adjusted by the person, and not by an external third party, would be preferable. .
On peut aussi recourir à des anesthésiques de surface locaux mais on entre alors dans un domaine connexe du médical et non de l'esthétique. Il faut que les personnes soient tolérantes à ces produits anesthésiques, il faut donc pouvoir doser. Bien qu'il existe de nombreuses crèmes ou autres formulations de ces produits, il est parfois difficile de se les procurer et il faut de toutes les façons se méfier des réactions allergiques et cela est crucial lorsque l'on s'approche des zones comme le contour des yeux.Local surface anesthetics can also be used, but one then enters a related field of medicine, not aesthetics. People need to be tolerant of these anesthetics, so you need to be able to dose. Although there are many creams or other formulations of these products, it is sometimes difficult to obtain them and you must be wary of allergic reactions anyway and this is crucial when approaching areas like the eye area.
Les anesthésiques à injecter, nécessaires pour les personnes de grande nervosité ou de grande sensibilité, sont encore plus délicats à manier et nécessitent le recours à un praticien tel qu'un dentiste pour les interventions sur le visage, ce qui n'est pas une solution acceptable. Les analgésiques ou sédatifs sont prescrits uniquement par des médecins et doivent être administrés préalablement, ce qui implique certaines contraintes supplémentaires.The anesthetics to inject, necessary for people of great nervousness or great sensitivity, are even more delicate to handle and require the recourse to a practitioner such as a dentist for the interventions on the face, which is not a solution. acceptable. Analgesics or sedatives are prescribed only by doctors and must be administered beforehand, which implies certain additional constraints.
De même, on connaît les traitements dits d'épilation définitive. De tels traitements consistent à attaquer le follicule pileux dans son entier à l'aide d'un rayonnement destructeur tel qu'un rayonnement laser, ou un flash en lumière blanche mais de forte intensité ou encore par pénétration d'une aiguille au droit du follicule et émission d'un courant à travers cette aiguille. De tels traitements sont douloureux même si les effets secondaires sont sans danger et le patient ressent une sensation de brûlure qui est non seulement désagréable mais qui provoque rougeur et œdème pour le moins, et dans certains cas conduisent à des cloques. 11 faut donc adapter les intensités en fonction de la nature, de la couleur et du type de poil et de la zone traitée qui peut être plus ou moins sensible. Les problèmes évoqués ci-avant pour la dermographie se retrouvent intégralement.Likewise, so-called permanent hair removal treatments are known. Such treatments consist in attacking the entire hair follicle using destructive radiation such as laser radiation, or white light flash but of high intensity or by penetration of a needle in line with the follicle. and emission of a current through this needle. Such treatments are painful even if the side effects are harmless and the patient feels a burning sensation which is not only unpleasant but which causes redness and edema to say the least, and in some cases lead to blisters. It is therefore necessary to adapt the intensities according to the nature, the color and the type of hair and the area treated which may be more or less sensitive. The problems mentioned above for dermography are found in full.
Dans le cas d'une restructuration de la peau, le praticien est amené à injecter par exemple du collagène et les contraintes et les conséquences générées sont identiques à celles de la dermographie.In the case of a restructuring of the skin, the practitioner is required to inject, for example, collagen and the constraints and the consequences generated are identical to those of dermography.
La présente invention propose un dispositif d'application de froid localisé qui pallie les inconvénients des moyens utilisés jusqu'à ce jour et qui permet de procurer un effet anesthésiant efficace et contrôlé, qui est aisé à manipuler, qui est précis en température comme en contour d'application, et qui limite les traumatismes post-intervention.The present invention provides a device for localized cold application which overcomes the drawbacks of the means used to date and which provides an effective and controlled anesthetic effect, which is easy to handle, which is precise in temperature as in contour application, and which limits post-intervention trauma.
La présente invention est maintenant décrite en détail selon un mode de réalisation non limitatif, en regard des dessins annexés sur lesquels les différentes figures représentent : - figure 1 , une vue en perspective d'un dispositif dans son ensemble,The present invention is now described in detail according to a non-limiting embodiment, with reference to the accompanying drawings in which the different figures represent: - Figure 1, a perspective view of a device as a whole,
- figures 2A et 2B, différentes têtes prévues pour être adaptées sur ce dispositif, etFIGS. 2A and 2B, different heads intended to be adapted on this device, and
- figure 3, une vue éclatée des éléments constitutifs du dispositif.- Figure 3, an exploded view of the components of the device.
Sur la figure 1 , on a représenté le dispositif complet tel qu'il peut être utilisé pour assurer un effet anesthésiant pendant la réalisation de dermographies à l'aide d'appareils adaptés.In Figure 1, there is shown the complete device as it can be used to provide an anesthetic effect during the production of dermographies using suitable devices.
Ce dispositif comprend une poignée 1 0 et un corps 1 2. Ce corps comprend des éléments internes et un boîtier muni de fentes 14 de circulation d'air, et comportant une tête 1 6 de travail sur l'une de ses faces. La poignée ne présente aucune particularité technique si ce n'est de permettre une bonne préhension du dispositif. Elle permet aussi un guidage des liaisons 1 8 filaires d'alimentation et de contrôle des différents éléments. Le corps 1 2 et son contenu sont détaillés sur la figure 3 et comprennent une partie tête 1 6 de travail, un boîtier 20 support, portable, et des moyens 22 de génération de frigories.This device comprises a handle 1 0 and a body 1 2. This body comprises internal elements and a housing provided with slots 14 for air circulation, and comprising a working head 1 6 on one of its faces. The handle has no technical particularities except to allow a good grip of the device. It also allows guiding of the 1 8 wired power supply and control links of the various elements. The body 1 2 and its content are detailed in Figure 3 and include a head part 1 6 of work, a support housing 20, portable, and means 22 for generating frigories.
La partie tête 1 6 de travail comprend un embout 24 d'application ayant un profil donné et des moyens 26 de fixation amovible de cet embout sur le boîtier 20 support. Ces embouts ont différentes configurations, en l'occurrence celui qui est représenté a une surface faible et relativement étroite, visible aussi sur la figure 2A tandis que d'autres variantes, comme celle de la figure 2B, permettent de couvrir des surfaces plus importantes, en forme de disque.The head part 1 6 of work comprises an end piece 24 of application having a given profile and means 26 for removably fixing this end piece on the support housing 20. These nozzles have different configurations, in this case the one shown has a small and relatively narrow surface, also visible in FIG. 2A while other variants, such as that of FIG. 2B, make it possible to cover larger surfaces, disc-shaped.
Les moyens 26 de fixation amovible sont constitués avantageusement d'un capot 28 dont le rebord 30 périphérique permet un encliquetage ou un vissage sur le boîtier 20 support. Ce capot comporte en son centre une découpe 32 pour permettre le passage de l'embout tandis qu'une collerette 34, solidaire de ce même embout, le retient.The removable fastening means 26 advantageously consist of a cover 28, the peripheral flange 30 of which allows snap-fastening or screwing on the support housing 20. This cover has in its center a cutout 32 to allow the passage of the tip while a collar 34, integral with this same tip, retains it.
Cet embout d'application est prévu pour venir au contact d'un applicateur 36 qui est une plaque métallique assurant la transmission des flux thermiques. Cet applicateur supporte également un capteur 38 de températures qui est intégré dans l'épaisseur même en sorte de limiter les dérives de mesure.This application nozzle is designed to come into contact with an applicator 36 which is a metal plate ensuring the transmission of the heat fluxes. This applicator also supports a temperature sensor 38 which is integrated into the thickness itself so as to limit the measurement drifts.
Cet applicateur 36 est au contact direct des moyens 22 de génération des frigories.This applicator 36 is in direct contact with the means 22 for generating frigories.
Ces moyens comprennent de façon tout à fait avantageuse un module 40 à effet Peltier. Un tel module comprend généralement deux plaques en céramique, entre lesquelles est disposée une succession de différentes jonctions positives et négatives, type semi-conducteur, reliées en série. De tels modules sont accessibles dans le commerce.These means include quite advantageously a module 40 with Peltier effect. Such a module generally comprises two ceramic plates, between which is disposed a succession of different positive and negative junctions, semiconductor type, connected in series. Such modules are commercially available.
Une fois ce module relié à une alimentation en courant continu, le courant délivré permet de générer un transfert thermique d'une face vers l'autre si bien que l'une des faces devient froide tandis que l'autre s'échauffe. Dans l'agencement représenté, la face froide est orientée vers l'applicateur. Afin de permettre un échange encore plus satisfaisant à l'interface, il est utile de prévoir le dépôt d'une mince couche 42 de graisse thermique de part et d'autre de ce module.Once this module is connected to a direct current power supply, the current delivered makes it possible to generate a heat transfer from one face to the other so that one of the faces becomes cold while the other heats up. In the arrangement shown, the cold face is oriented towards the applicator. In order to allow an even more satisfactory exchange at the interface, it is useful to provide for the deposition of a thin layer 42 of thermal grease on either side of this module.
La chaleur qui est produite sur la face supérieure du module doit impérativement être évacuée, d'une part, afin de ne pas détruire le boîtier et, d'autre part, afin d'améliorer le rendement de ce module.The heat which is produced on the upper face of the module must imperatively be removed, on the one hand, so as not to destroy the housing and, on the other hand, in order to improve the efficiency of this module.
A cet effet, il est prévu un radiateur 44 à ailettes dont le socle 46 est en contact intime avec la face chaude du module Peltier.To this end, a finned radiator 44 is provided, the base 46 of which is in intimate contact with the hot face of the Peltier module.
Les ailettes assurent un refroidissement par air mais la quantité de chaleur générée par le module, confinée dans un boîtier comme le boîtier 1 0 du présent dispositif pourrait provoquer une augmentation trop importante de la température.The fins provide air cooling but the amount of heat generated by the module, confined in a housing like the housing 1 0 of this device could cause an excessive increase in temperature.
Aussi, il est prévu une rehausse 48 qui permet de loger un extracteur 50 de chaleur à pales, surmonté d'une grille 52. Ce même extracteur peut aussi être muni d'une sécurité de type connu, qui interrompt le fonctionnement en cas de dépassement d'un seuil de température.Also, an extension 48 is provided which makes it possible to house a heat extractor 50 with blades, surmounted by a grid 52. This same extractor can also be provided with a safety device of known type, which interrupts operation in the event of overflow a temperature threshold.
Le fonctionnement du dispositif selon la présente invention est maintenant décrit dans son application directe à la dermographie. La personne à dermographier peut prendre en main le dispositif si elle le souhaite. Dès que le dispositif est alimenté en courant, le module Peltier assure une production de frigories sur la face en contact avec l'applicateur 36, à travers la couche 42 de graisse thermique.The operation of the device according to the present invention is now described in its direct application to dermography. The person to be dermographed can take over the device if they wish. As soon as the device is supplied with current, the Peltier module ensures the production of frigories on the face in contact with the applicator 36, through the layer 42 of thermal grease.
Les frigories sont transmises par conduction à l'embout 24 qui, métallique de préférence, conduit très bien les flux thermiques.The frigories are transmitted by conduction to the nozzle 24 which, preferably metallic, conducts heat flows very well.
Le capteur 38 de température permet de piloter la quantité de frigories générées par le module Peltier, si bien que, moyennant une console annexe avec un microprocesseur programmable, il est simple de prévoir une régulation automatique de la température par rapport à une valeur de consigne ou par rapport à une courbe donnée, après stabilisation.The temperature sensor 38 makes it possible to control the quantity of frigories generated by the Peltier module, so that, by means of an auxiliary console with a programmable microprocessor, it is simple to provide automatic regulation of the temperature with respect to a set value or with respect to a given curve, after stabilization.
De ce fait, l'embout 24 d'application reste régulé à une température comprise dans une plage très limitée. Cette température est réglée en fonction de la sensibilité de la personne, des caractéristiques du derme, du mode et des moyens de dermographie, notamment.Therefore, the application tip 24 remains regulated at a temperature within a very limited range. This temperature is adjusted according to the sensitivity of the person, the characteristics of the dermis, the mode and means of dermography, in particular.
On peut ainsi travailler à des températures très légèrement positives, 2 ou 3 °C sans problème, ce qui assure un effet anesthésiant tout en étant supportable par la personne.We can thus work at very slightly positive temperatures, 2 or 3 ° C without problem, which ensures an anesthetic effect while being tolerable by the person.
En fin de séance de dermographie, il est possible de laisser le dispositif appliqué plus longuement en sorte d'éviter le plus possible les séquelles et la température peut aussi être modifiée. Durant la séance, le dispositif procure le confort pour la personne mais aussi permet au praticien de dermographier dans les meilleures conditions. Le froid, en plus de l'effet anesthésiant, assure une contraction des canaux lymphatiques et autres veinules, si bien qu'il y a une limitation importante de la formation d'oedèmes et d'hématomes, sachant toutefois que écoulement surfacique est quant à lui inévitable et nécessaire pour l'implantation des pigments.At the end of the dermography session, it is possible to leave the device applied for a longer period so as to avoid the after-effects as much as possible and the temperature can also be modified. During the session, the device provides comfort for the person but also allows the practitioner to dermograph in the best conditions. The cold, in addition to the anesthetic effect, ensures a contraction of the lymphatic channels and other venules, so that there is a significant limitation of the formation of edemas and hematomas, knowing however that surface flow is about him inevitable and necessary for the implantation of pigments.
En fonction de la zone à traiter, il convient d'ajuster l'embout, ce qui est réalisé de façon extrêmement rapide par encliquetage ou vissage.Depending on the area to be treated, the tip should be adjusted, which is achieved extremely quickly by snap-fastening or screwing.
On note à ce sujet que les embouts, qui sont les seules pièces en contact avec le derme des personnes, peuvent être stérilisés, indépendamment du dispositif lui même.We note in this regard that the tips, which are the only parts in contact with the dermis of people, can be sterilized, regardless of the device itself.
En ce qui concerne la chaleur produite, elle est émise sous forme de radiations calorifiques par le radiateur 44, radiations qui sont véhiculées par le flux d'air mis en circulation par l'extracteur 50, la grille 52 ayant simplement un rôle de protection d'accès aux pales de l'extracteur.As regards the heat produced, it is emitted in the form of calorific radiations by the radiator 44, radiations which are conveyed by the air flow put into circulation by the extractor 50, the grid 52 having merely a protective role d '' access to the extractor blades.
En cas de dysfonctionnement, une sonde thermique de sécurité de type connu, assure la rupture d'alimentation du module Peltier, tout en laissant s'il le faut l'extracteur en service pour assurer un refroidissement plus rapide.In the event of a malfunction, a safety thermometer of known type ensures the supply of power to the Peltier module, while leaving the extractor in service if necessary to ensure faster cooling.
Afin de rendre le dispositif encore plus performant, la console associée à microprocesseur qui pilote la température et le fonctionnement, peut aussi intégrer un variateur de fréquences pour piloter également le fonctionnement des moyens de dermographie et donc la fréquence et/ou la puissance de pénétration de l'aiguille dans le derme.In order to make the device even more efficient, the console associated with a microprocessor which controls the temperature and the operation, can also integrate a frequency converter to also control the operation dermography means and therefore the frequency and / or the power of penetration of the needle into the dermis.
D'autres moyens de génération de frigories peuvent être envisagés mais le module Peltier est tout à fait approprié car il permet d'obtenir des frigories dans un très bref délai, il est peu encombrant et léger, donc il peut être intégré dans le dispositif, sans nécessiter une centrale annexe de production de froid.Other means of generating frigories can be envisaged but the Peltier module is entirely suitable because it makes it possible to obtain frigories in a very short time, it is compact and light, so it can be integrated into the device, without the need for an auxiliary cold production plant.
De plus, il présente une faible inertie thermique et autorise des variations suffisamment rapides pour assurer un travail de dermographie rapide puisque les phases d'attente de mise en température ou de régulation de la température sont courtes. Cette faible inertie permet aussi d'obtenir une grande précision de la température au niveau de l'embout et de l'interface avec la peau de la personne.In addition, it has a low thermal inertia and allows variations that are fast enough to ensure rapid dermography work since the waiting periods for temperature rise or temperature regulation are short. This low inertia also makes it possible to obtain high temperature precision at the level of the nozzle and of the interface with the person's skin.
Le module à effet Peltier retenu pour la génération de frigories est le mode de réalisation préférentiel pour sa compacité, sa rapidité de mise en service, sa faible inertie mais tout autre moyen de production de frigories peut- être envisagé du moment qu'il est possible de le loger dans un boîtier support manipulable.The Peltier effect module selected for the generation of frigories is the preferred embodiment for its compactness, its speed of commissioning, its low inertia but any other means of production of frigories can be envisaged as long as it is possible. to house it in a handy support case.
On peut ainsi envisager une circulation de fluide frigorigène dans la tête, porté à basse température par décompression, ceci dans un appareillage distinct rattaché au dispositif selon la présente invention.It is thus possible to envisage a circulation of refrigerant in the head, brought to low temperature by decompression, this in a separate apparatus attached to the device according to the present invention.
Compte tenu de la faible quantité de frigories nécessaire puisque la zone à traiter est de faible surface, la section des tubes de circulation peut être réduite, ce qui limite l'encombrement qui reste néanmoins plus important que celui du mode préférentiel de réalisation utilisant un module à effet Peltier. Given the small amount of refrigeration required since the area to be treated is small, the cross section of the circulation tubes can be reduced, which limits the space requirement which nevertheless remains greater than that of the preferred embodiment using a module Peltier effect.

Claims

R E V E N D I C A T I O N S
1 . Dispositif d'application localisée de froid durant un traitement traumatisant du derme, caractérisé en ce qu'il comprend au moins un boîtier (20) support, portable, muni d'un embout (24) d'application et de moyens (22) de génération et de transmission de frigories dans cet embout. 1. Device for localized application of cold during a traumatic treatment of the dermis, characterized in that it comprises at least one housing (20) support, portable, provided with a nozzle (24) for application and means (22) for generation and transmission of frigories in this nozzle.
2. Dispositif d'application localisée selon la revendication 1 , caractérisé en ce qu'il comprend des moyens (38) de régulation de la température de l'embout.2. A localized application device according to claim 1, characterized in that it comprises means (38) for regulating the temperature of the nozzle.
3. Dispositif d'application localisée selon la revendication 1 ou 2, caractérisé en ce qu'il peut recevoir différents embouts (24) qui présentent chacun un profil adapté à celui de la zone à traiter.3. A localized application device according to claim 1 or 2, characterized in that it can receive different tips (24) which each have a profile adapted to that of the area to be treated.
4. Dispositif d'application localisée selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de génération de froid comprennent un module (40) à effet Peltier dont la face froide est en contact avec l'embout (24). 4. A localized application device according to any one of the preceding claims, characterized in that the cold generation means comprise a module (40) with Peltier effect whose cold face is in contact with the nozzle (24).
5. Dispositif d'application localisée selon la revendication 4, caractérisé en ce qu'il comprend un radiateur (44) et un extracteur (50) des calories de la face chaude dudit module (40) à effet Peltier.5. A localized application device according to claim 4, characterized in that it comprises a radiator (44) and an extractor (50) of the calories from the hot face of said module (40) with Peltier effect.
6. Dispositif d'application localisée selon l'une des revendications 1 à 3, caractérisé en ce que les frigories sont apportées par un fluide frigorigène circulant dans des tubes alimentés par un appareillage extérieur.6. Localized application device according to one of claims 1 to 3, characterized in that the frigories are provided by a refrigerant circulating in tubes supplied by an external device.
7. Dispositif d'application localisée selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une poignée (1 0) qui intègre les liaisons (1 8) filaires vers une alimentation électrique et vers une console à microprocesseur programmable. 7. A localized application device according to any one of the preceding claims, characterized in that it comprises a handle (1 0) which integrates the connections (1 8) wired to an electrical supply and to a console with programmable microprocessor.
8. Dispositif d'application localisée selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un capot (28) dont le rebord (30) est monté à encliquetage sur le boîtier (20) support.8. A localized application device according to any one of the preceding claims, characterized in that it comprises a cover (28), the flange (30) of which is snap-fitted on the housing (20) support.
9. Dispositif d'application localisée selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un applicateur (36) interposé entre les moyens de génération de frigories et l'embout (24) .9. A localized application device according to any one of the preceding claims, characterized in that it comprises a applicator (36) interposed between the means for generating frigories and the nozzle (24).
1 0. Dispositif d'application localisée selon la revendication 9, caractérisé en ce que l'applicateur (36) reçoit un capteur de températures. 1 0. A localized application device according to claim 9, characterized in that the applicator (36) receives a temperature sensor.
PCT/FR2001/001189 2000-04-19 2001-04-18 Device for locally applying cold during a traumatic treatment of the skin WO2001078828A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR0110176-5A BR0110176A (en) 2000-04-19 2001-04-18 Device for localized cold application during traumatic skin treatment
CA002406165A CA2406165A1 (en) 2000-04-19 2001-04-18 Device for locally applying cold during a traumatic treatment of the skin
AU2001254874A AU2001254874A1 (en) 2000-04-19 2001-04-18 Device for locally applying cold during a traumatic treatment of the skin
EP01927993A EP1274481A1 (en) 2000-04-19 2001-04-18 Device for locally applying cold during a traumatic treatment of the skin

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR00/05054 2000-04-19
FR0005054A FR2807938B1 (en) 2000-04-19 2000-04-19 LOCALIZED COLD APPLICATION DEVICE DURING PIGMENT LAYOUT BY DERMOGRAPHY
FR00/10357 2000-08-04
FR0010357A FR2812542B1 (en) 2000-08-04 2000-08-04 LOCALIZED COLD APPLICATION DEVICE DURING A DEFINITIVE HAIR REMOVAL TREATMENT

Publications (1)

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WO2001078828A1 true WO2001078828A1 (en) 2001-10-25

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AU (1) AU2001254874A1 (en)
BR (1) BR0110176A (en)
CA (1) CA2406165A1 (en)
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Publication number Priority date Publication date Assignee Title
WO2014190431A1 (en) * 2013-05-31 2014-12-04 Dickie Robert G Method and apparatus for controlling menopausal hot flashes
JP2016059794A (en) * 2014-09-15 2016-04-25 瑪儷 陳 Compress device for warming and cooling

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3207159A (en) * 1962-06-14 1965-09-21 Tateisi Denki Kabushikikaisha Thermoelectric therapeutic instrument
US4508106A (en) * 1983-02-14 1985-04-02 Angres Clinic, Ltd. Microsurgical method for applying permanent eyelid liner
WO1993021974A1 (en) * 1992-04-29 1993-11-11 Singer, Federico Skin piercing devices for medical use

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207159A (en) * 1962-06-14 1965-09-21 Tateisi Denki Kabushikikaisha Thermoelectric therapeutic instrument
US4508106A (en) * 1983-02-14 1985-04-02 Angres Clinic, Ltd. Microsurgical method for applying permanent eyelid liner
WO1993021974A1 (en) * 1992-04-29 1993-11-11 Singer, Federico Skin piercing devices for medical use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014190431A1 (en) * 2013-05-31 2014-12-04 Dickie Robert G Method and apparatus for controlling menopausal hot flashes
JP2016059794A (en) * 2014-09-15 2016-04-25 瑪儷 陳 Compress device for warming and cooling

Also Published As

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EP1274481A1 (en) 2003-01-15
AU2001254874A1 (en) 2001-10-30
BR0110176A (en) 2003-06-03
CA2406165A1 (en) 2001-10-25

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