FR2618127A1 - Dispensing container for viscous substance - Google Patents

Abstract

The invention relates to a dispensing container for a viscous substance, of a cosmetic or medicinal character or of any other nature. The container comprises a container body 1 provided with a reservoir 2 containing the substance and a dispensing head 3 capable of being controlled in opening or in closing. The container also comprises a reservoir 2 constituted from a flexible material and pressure means 20, 23 making it possible to apply a continuous pressure on the reservoir 2 when substance is present in order to allow, simply by controlling the opening of the dispensing head 3, the dispensing of the substance to be dispensed. Application to the dispensing of viscous substances such as food emulsions or cosmetic or pharmaceutical emulsions.

Description

The present invention relates to a dispensing container
viscous substance.

 Currently, viscous substance dispensing containers usually comprise a container body in which is contained a viscous substance reservoir, a reservoir made of semi-rigid material such as aluminum sheet. The viscous substance reservoir is connected to a dispensing head and the reservoir body is filled with a pressurized gas. The opening of a distribution valve has the effect, on gas pressure on the semi-rigid wall of the tank, of causing the expulsion of the viscous substance from the container and its distribution.

 These containers have several drawbacks, among which may be mentioned, for example, the deformation, which is necessarily incomplete, of the semi-rigid substance reservoir, in particular in the vicinity of the bottom thereof, which results in a non-negligible loss of viscous substance, this latter can no longer be expelled from the partially deformed tank.

 In addition, the reservoir and the body of the container must normally, in particular in the case where the viscous substance is a medicinal substance or with cosmetic properties, be covered with a protective varnish. It has been found, in certain cases, an insufficiency of characteristics stability of these varnishes, as a function of certain substances, which has the effect of causing corrosion of the materials constituting the container body and / or of the reservoir, with the consequence of a non-negligible reduction in the periods of conservation and storage of these substances thus conditioned. The risks of non-functioning of these containers most often result from the progressive leakage of the gas and the absence of pressure at the time of use or defective dispensing heads. These risks are hardly tolerable in the case where the medicinal substances must be distributed for rapid intervention such as burns in particular.

 In addition, and given the nature of the pressurized gas used, these containers cannot easily be refilled with viscous substance, and consequently, their multiplication as a disposable object to be discarded after use poses a significant problem of rational destruction to avoid any risk of pollution. The risk of explosion of these containers, when they are subjected to temperatures higher than 500C is moreover not negligible.

 The object of the present invention is to remedy the aforementioned drawbacks by the use of a viscous substance dispensing container in which the tank made of semi-rigid material is eliminated and replaced by a tank allowing substantially a total expulsion of the viscous substance out of the tank and the distribution thereof.

 Another object of the present invention is the implementation of a container for distributing viscous substances, capable of being easily refilled and reused, thereby avoiding an excessive multiplication of this kind of container for the same service rendered.

 Another object of the present invention is the implementation of a container for distributing viscous substances in which the propellant gas used in the devices of the prior art can be eliminated.

 Another object of the present invention is the implementation of a container for dispensing high-quality viscous substances, in which the risks of corrosion of the container body and of the reservoir are eliminated. This container being more particularly intended for the packaging of substances of a medicinal and / or cosmetic nature.

 Another object of the present invention is the implementation of a viscous substances dispensing container making it possible to generate a flow or flow of flow of substance of adjustable size, with a view to carrying out medicinal applications of therapeutic or cosmetological nature. of different natures.

 The viscous substance dispensing container which is the subject of the invention advantageously finds application in the packaging and distribution of viscous liquid or pasty substances, such as emulsions, substances used both in the food sector such as mayonnaises, mustards, edible creams and in the field of substances or products for personal hygiene, shaving foams, depilatory foams, or medicinal or cosmetically active substances such as anti-soldier treatment or protection creams, anti-bruising creams or hematomas, or cosmetic products.

The invention will be better understood on reading the description and on observing the drawings below in which
the figure shows, in a sectional view along a longitudinal plane of symmetry, a container for dispensing a viscous substance in accordance with the object of the present invention,
FIGS. 1b to Id represent a view of the dispensing container which is the subject of the invention along a section plane AA of FIG. 1a according to different stages of filling or dispensing of the dispensing container according to the invention and of its reservoir,
FIG. 2a represents a front view of a dispensing head of the dispensing container which is the subject of the invention in a particularly advantageous embodiment,
FIG. 2b represents a sectional view along a section plane BB of FIG. 2a,
FIG. 3a represents a sectional view along a longitudinal plane of symmetry of an embodiment of a particularly advantageous dispensing head more particularly intended for the distribution of viscous medicinal substances,
the fi-.ire 3b represents a sectional view along a sectional plane CC of the fis Pe 3a,
- The .t,.,. e 4 shows a sectional view along a longitudinal plane of symmetry of a particular embodiment of the dispensing head shown in Figures 3a and 3b and wherein a substance inlet valve is provided to ensure the charging or recharging of the reservoir of the dispensing container which is the subject of the invention,
FIG. 5 represents, in a sectional view along a longitudinal plane of symmetry, a cartridge for reloading a dispensing container according to the invention,
- Figure 6 shows an isometric view of a cartridge for filling the reservoir of a dispensing container according to the invention.

 The viscous substance dispensing container which is the subject of the invention will firstly be described in conjunction with FIGS. 1a, 1b, 1c, Id.

 According to the aforementioned figure, the viscous substance dispensing container object of the invention comprises a container body 1, provided with a reservoir 2 containing the viscous substance to be dispensed. The viscous substance dispensing container which is the subject of the invention also comprises a dispensing head 3, capable of being controlled on opening or closing, in order to ensure the distribution of the aforementioned substance or its storage in the container.

 In accordance with a particularly advantageous aspect of the dispensing container which is the subject of the invention, it comprises a reservoir denoted 2, made of flexible material, and means denoted 20, 23 designated by pressure means, making it possible to exert on the reservoir 2 , in the presence of substance, permanent pressure. The aforementioned pressure means associated with the flexible material reservoir allow, on a single command when the dispensing head 3 is opened, the distribution of the viscous substance to be dispensed.

 According to a first particularly advantageous aspect of the dispensing container which is the subject of the invention, the reservoir 2 is constituted by a flexible elastic material constituting the wall or walls of the reservoir. These walls during the loading of viscous substance to be dispensed are put under mechanical tension, and the pressure means 20 are in this case, constituted in a nonlimiting manner by the elastic tension of the walls.

 According to a non-limiting embodiment of the dispensing container which is the subject of the invention, the pressure means can comprise in a particularly advantageous manner, elastic means 23 bearing on the internal wall of the container body 1. These elastic means 23 then allow 'Apply on the outer wall of the tank 2 constituting a flexible material aforementioned permanent pressure, and their effect can thus be added to the elastic tension effect of the walls of the flexible tank 2 when the latter is made of an elastic material.

 It will of course be understood that, depending on the viscous substance to be dispensed, the above-mentioned elastic means may or may not be associated with the flexible tank 2 made of elastic material. The use of a flexible elastic reservoir 2 is particularly advantageous since the useful volume of substance can be substantially equal to the internal volume of the body of container 1.

 A particularly advantageous embodiment of the elastic means 23 will be described in connection with FIGS. 1b, 1c, id previously cited.

 As shown in section along the plane AA of FIG. 1a, in the aforementioned figures, the elastic means 23 are constituted by two elastic blades denoted 231 and 232. The aforementioned elastic blades form a spring and the flexible reservoir 2 made of elastic material or not is placed between the aforementioned blades 231 and 232. As shown in the above figures, the end or lateral edge of the elastic blades bears against the internal wall of the body of the container 1, to form a deformable case in which the flexible reservoir 2 containing the viscous substance to be dispensed is thus placed.

 Advantageously without limitation, the reservoir 2 made of a flexible material, can advantageously be made of a material compatible with the viscous substance. Thus, the flexible material reservoir can be made of a latex, an elastomeric material or any material capable of exhibiting suitable physicochemical stability with respect to the substance to be dispensed. The tank 2 can also be made up of various materials such as varnished aluminum sheet, this type of tank can be refilled several times, provided that their circumference does not exceed twice the internal diameter of the container body 1. Under these conditions, the useful volume is approximately 36% of the internal volume of the container body 1.

 In FIG. 1b, the flexible tank 2 is shown entirely empty of substance to be dispensed, the latter then being held between the two elastic blades 231 and 232, which are then substantially flat. On the contrary, in FIG. 1c, the assembly is in the intermediate position, the reservoir 2 containing a sufficient reserve of substance to be distributed, and the elastic blades 231, 232 exerting thereon their pressure permanently. In FIG. 1d, on the contrary, the reservoir 2 is completely filled with substance to be dispensed, the elastic blades 231 and 232 being completely pressed against the internal wall of the container body I.

 As will be seen in particular in FIG. 1a, the upper end of the reservoir 2 made of flexible material is connected to a nozzle 30 directly secured to the dispensing head 3.

 In a nonlimiting manner, and according to the embodiment shown in FIG. 1a, the dispensing head 3 comprises a closure cover 31 of the body of the container 1, the cover 31 comprising an inlet nozzle 32 of the viscous substance to be dispensed . The inlet / distribution nozzle 32 is of course connected to the nozzle 30 and may advantageously include, without limitation, a valve 33 capable of being controlled on opening or closing. The valve can be constituted by a system of the tap type, and will not be described in more detail, these systems being known as such from the state of the art.

 Of course, in order to ensure the distribution of the viscous substance to be dispensed, the dispensing nozzle 32 of the viscous substance is advantageously extended by a distribution nozzle 34, which is adjustable as a function of the viscous substance to be dispensed and of the function cosmetological and / or medicinal or food or hygiene product thereof.

 The loading of the dispensing container which is the subject of the invention with a viscous substance to be dispensed can be carried out for example using a pressure pump. The pressure required for loading can be reduced by the use, as shown in FIG. 1b and 1c in particular, of pellets of magnetic material denoted 2310 and 2320, these pellets being respectively placed side by side on the external face of the elastic blades 231, 232. filling, the container object of the invention can be placed between the poles of an electromagnet, which ensures the traction of the metal blades 231 and 232 above, towards the internal walls of the body of the container 1, decreasing in this is the pressure necessary to fill the tank with flexible material 2, and consequently the pressure pump used.

 The viscosity of the product to be dispensed in fact determines the stiffness of the elastic blades 231 or 232 used.

 The opening of the valve 33 immediately after loading immediately expels the conditioned product or viscous substance to be dispensed, on the one hand thanks to the elasticity of the material constituting the flexible tank 2 and on the other hand thanks to the 'action of elastic blades 231 and 232, which gradually return to their original position, as shown in Figure lb.

 As regards the flexible tank 2, this must be made of a material compatible with the product to be dispensed. This material must be very elastic to contribute to the expulsion and å: stribution of the viscous substance to be dispensed, but also in order to allow several reloads of the dispensing container which is the subject of the invention.

 This possibility of re-using a dispensing container appears to be much more practical and aseptic with regard to cosmetological and / or medicinal products, and this is likely to be of great interest, particularly for hospitals and their mobile antennas, as well as medical services of the armed forces.

 In general, the viscosity of the viscous substance to be dispensed and the section of the nozzle 32 determines the stiffness of the elastic blades 231, 232, which preferably will not have a sharp angle. The positioning of the metal blades 231 and 232 in the housing can be carried out before, after or during the introduction of the flexible tank 2, provided that the aforementioned flexible tank is introduced between the blades as shown in FIG. 1b in particular. The assembly of the assembly in the container body 1 presents no major difficulty. The dispensing head 3 can then be attached by screwing onto the container body I, as shown in FIG.

 An embodiment. particularly advantageous of a viscous substance dispensing container according to the object of the present invention, will now be described in conjunction with FIG. 2 and in particular, an embodiment of an adjustable dispensing nozzle 34 of the dispensing head 3 capable of being used for the distribution of a product with a medicinal and / or cosmetic effect, such as very high quality products, marketed under the trademark "BIAFINE" or "ABI". This product, as we know, is particularly advantageous for the treatment of burns caused by excessive sun exposure or by exposure to excessively high temperatures of the epidermis, in particular in the case of injury sustained by fire-fighting personnel, this product still being particularly effective for the treatment of bruises or the like.

 As shown in FIG. 2, the adjustable nozzle 34 for dispensing the aforementioned viscous substance may advantageously comprise a cylindrical tube 340, this tube being provided on one of its generating lines with a slot denoted 3401 with a determined opening width. In addition, the adjustable dispensing nozzle 34 includes a slot shutter means denoted 341, this slot shutter means being capable of being controlled to clear or close the slot 3401 formed on the cylindrical tube 340. In FIG. 2a , there is shown an adjustable dispensing nozzle 34 seen from the front, the slot 3401 being shown in dotted lines since the latter is closed and therefore obscured by the means 341; slot shutter.

 In Figure 2b, there is shown a section along the cutting plane denoted BB of Figure 2a, the nozzle 34 of adjustable distribution.

 In FIGS. 2a and 2b above, and in accordance with these, the slit shutter means 341 can comprise a part 3410 in the form of an open cylindrical sleeve, this part comprising at one of its lateral edges an extension 3411 forming a tongue for operating the slot shutter 341. As will be readily understood from the observation of FIGS. 2a and 2b, the part 3410 is engaged in rotation around the cylindrical tube 340, so that, on command of the tongue of maneuver 3411, the slit shutter means 341 makes it possible to clear or close the slit 3401 formed on the cylindrical tube. As will also be noted in FIG. 2b, a return spring 3412 can be provided, it is supported on the hood 31 constituting the dispensing head 3 by closing the container body 1, the aforementioned spring 3412 also bearing under the operating tongue 3411. In the rest position, the spring maintains the slot 3401 in the closed position, in the absence of actuation of the operating tongue 3411.

 Of course, the valve 34 having been placed in the open position, the operation of the shutter means 341 makes it possible, by releasing the aforementioned slot 3401, to thus ensure the distribution of the viscous substance to be dispensed. Of course, the embodiment as shown in Figure 2a and 2b is not limiting, the part 3410 in the form of an open cylindrical sleeve, which can, without departing from the scope of the object of the present invention, be optionally mounted at rotation inside the cylinder 340.

 A particularly advantageous embodiment of the shutter means 341 will be described in connection with FIG. 2a.

 According to the above-mentioned figure, with a view to ensuring a distribution of the viscous substance according to a determined flow width, in particular for the specific use of medicinal substances as previously described for the treatment of burns, for which it is always very delicate to ensure spreading of the treatment substance over the entire extent of the burn injury, the part 3410 in the form of an open cylindrical sleeve may advantageously comprise at its lateral edge opposite to the lateral edge comprising the extension 3411 forming operating tab, a closing edge 3413 comprising at least one part inclined relative to the longitudinal axis of the slot 3401.

Thus, as a function of the pressure exerted on the operating tongue 3411, and of the corresponding rotation of the part 3410 in the form of an open sleeve, the length of the slot thus discovered, ensuring the flow of the substance to be distributed, varies in direct proportion of the above-mentioned angle of rotation.

As shown elsewhere in Figure 2a, the shutter edge 3413 may include two opposite inclined portions noted
A and B forming a chevron, the two inclined parts of identical length being connected by a notch denoted C, the dimension of which corresponds to the thickness of the slot 3401. Of course, for a rotation angle of the part 3410 in the form of a sleeve cylindrical open, the weakest,
The notch C allows at most the opening of a substantially circular orifice located in the center of the slot 3401, the aforementioned orifice allows the flow of the viscous substance, along a substantially thread, the diameter of which is close to the opening width of the slot. For an angle of rotation of the part 3410 in the form of an open cylindrical sleeve, the length of the slot cleared is symmetrical with respect to the cutting plane BB of FIG. 2a, the entire length of the slot 3401 being able to be cleared for rotation maximum of part 3410 in the form of an open cylindrical sleeve.

 Of course, in order to facilitate the use of the dispensing head 3 and of the dispensing nozzle 34 as described in particular in FIGS. 2a and 2b, either by the nursing staff or by the injured person himself, the part 3410 in the form of an open cylindrical sleeve may advantageously have representative graduations with respect to a mark of the opening dimension of the slot 3401.

 As will be noted in FIGS. 2a and 2b in particular, the part 3410 in the form of a sleeve can be slidably mounted on the cylindrical tube 340 between two lateral guides 3414, 3415, also ensuring the tightness of the dispensing nozzle. 34. Of course, the fixed mark allowing the marking of the graduations and ultimately of the opening of the slot can be located on one of the lateral guides 3414 or 3415.

 As will be noted in particular in FIGS. 2a and 2b, the longitudinal axis of the cylindrical tube 340 and of the part 3410 in the form of an open cylindrical sleeve, is perpendicular to the longitudinal axis of the inlet / distribution nozzle 32 of the viscous substance to be dispensed.

 A particularly advantageous embodiment of a dispensing nozzle 34 particularly intended for a container for dispensing a viscous substance such as a medicinal substance used in the composition of a first aid kit for operational intervention personnel will be described in conjunction with FIGS. 3a and 3b.

 According to the aforementioned figures, the longitudinal axis of the cylindrical tube 340 and of the part 3410 in the form of an open cylindrical sleeve is parallel to the longitudinal axis of the nozzle 32 for admission distribution of the viscous substance to be distributed and in the extension of this one.

 In this case, as will be noted moreover in particular in FIGS. 3a and 3b, the part 3410 in the form of an open cylindrical sleeve and the cylindrical tube 340 each have a diameter much greater than the diameter of the inlet nozzle 32 / distribution of the viscous substance to be distributed. Thus, the nozzle 32 for admission / distribution of viscous substance to be dispensed forms with respect to the part 3410 in the form of an open cylindrical sleeve and of the cylindrical tube 340 a central axis and the space between the dispensing nozzle. 32 and the open cylindrical sleeve 3410 and the cylindrical tube 340 forms a buffer tank in which the viscous substance to be dispensed accumulates before dispensing via the slot 3401. Almost all of the viscous substance to be dispensed can thus be recovered by the user as will be described below in the description, this recovery can occur in a particularly advantageous manner, even in the absence of pressure exerted by the metal, elastic blades 231 and 232 previously described. Of course, as will be easily understood, in the absence of pressure actually exerted by the elastic blades 231 and 232, the flexible tank 2 being substantially empty, the user then has the possibility of removing the assembly constituted by the cylindrical tube 340 and through the open cylindrical sleeve 3410 forming a buffer tank, this assembly being plugged into the dispensing nozzle 32, and recovering the viscous substance contained in the aforementioned buffer tank in order to use the latter.

 As shown in a longitudinal section in FIG. 3a, the assembly constituted by the cylindrical tube 340 and by the open cylindrical sleeve 3410 and forming a buffer tank, comprises two circular walls for closing the buffer tank. A first circular wall 3421 forms the bottom of the buffer tank and is provided with a through hole 34210 and a second circular wall 3420 forming a cover of the buffer tank is provided with a blind hole 34220. The through hole and the blind hole have a diameter allowing the assembly of the assembly on the inlet / distribution nozzle 32. In FIG. 3a, the space forming the buffer tank is denoted 3432. In this same figure, the edge is shown on the one hand shutter 3413, which does not appear in the sectional view, the upper part of the part 3410 in the form of an open sleeve being removed, as well as the distribution slot 3401, which is normally formed on the upper part of the cylindrical tube 340, this part also not appearing in the section plane of FIG. 3a. Of course, the blind hole 34220 can be fitted with any ratchet system of the conventional type, allowing plugging in and suitable fixing of the end of the dispensing nozzle 32. This conventional method of fixing will not be described, this one This can normally be implemented by a person skilled in the art. Of course, the dispensing nozzle 32 is provided with a dispensing orifice 320, for example in its upper part, in order to ensure the flow of the viscous substance. to be dispensed into the buffer tank 3432. The distribution slot 3401 disposed on the cylindrical tube 340 then makes it possible to ensure the flow and distribution of the viscous substance to be dispensed, upon actuation of the part 3410 in the form of an open cylindrical sleeve, by rotating it on the cylindrical tube 340.

 In Figure 3b, there is shown a sectional view along the transverse plane CC of Figure 3a. In this figure, it will be noted on the part in the form of an open cylindrical sleeve 3410, the presence of an added part denoted 3416, which constituted for example of molded material, is intended to facilitate the operation of the part 3410 in the form of cylindrical sleeve open to clear the distribution slot 3401. The aforementioned part 3416 can advantageously have a cell 3417, in which the user can engage a finger or the thumb for example, in order to rotate the part 3410 in the form of a sleeve open cylindrical, to ensure the clearing of the distribution slot 3401 in a manner similar to the embodiment of FIG. 2a. As will be noted in particular in FIG. 3b, the edges constituting the closing edge 3413 of the element d obturation 341 can advantageously be bevelled. Of course, in order to ensure the return of the part 3410 in the form of a cylindrical sleeve open in the closed and concealed position of the distribution slot 3401, the aforementioned part 3410, in the form of an open cylindrical sleeve can be made integral with one or more spiral springs denoted 3418, mounted in a groove in the bottom 3421 or in the cover 3422. The aforementioned spiral spring or springs can be mounted in a groove in the bottom or the cover previously mentioned and they are made integral with the part 3410 in the form of an open cylindrical sleeve, these spiral springs bringing, in the absence of user action to ensure the opening of the dispensing slot 3401, the part 3410 in the form of an open cylindrical sleeve in the closed position of the aforementioned slot The spiral springs act in a similar manner to the spiral springs used in mechanical watchmaking movements.

A particularly advantageous variant of
The distribution nozzle 34, as shown in FIG. 3a and 3b previously, will now be described in connection with FIG. 4, this embodiment making it possible to load and / or reload the dispensing container which is the subject of the invention and the distribution of the viscous substance to be distributed under the best conditions of ease of procedure and aseptic in the case of a substance of cosmetic and / or medicinal type.

 As shown in FIG. 4, the valve 33 being eliminated at the level of the inlet / distribution nozzle 32, the wall 3422 forming a cover can be provided with a valve 3423 directly connected to the inlet / distribution nozzle 32. The valve 3423 has an external female end piece 34230, which allows the flexible tank 2 to be loaded with viscous substance, from a male end piece 34231 connected to a reserve of viscous substance in overpressure relative to the internal cavity of the flexible tank 2. The valve 3423 is shown directly connected to the dispensing nozzle 32, the valve 3423 being conventionally provided with a non-return valve 34232. Instead of a bottom wall, the cylindrical tube 340 can be provided at its end a thread 3400 allowing the screwing of the latter on the cover 31 obturator of the container body 1. It will be noted in particular that the distribution slot 3401 can be provided with an extension 34010 whose function will be described below s.

In addition, the cover 3422 can be provided with weakening zones 34225, as shown in FIG. 4. The distribution slot 3401 being obscured, the injection under pressure is carried out, the buffer tank 3432 being filled with viscous substance under pressure and flowing through the orifice 320 of the inlet nozzle 32 towards the flexible tank 2. The aforementioned weakening zones 34225 due to their specially adapted shape, the cover 3422 carrying out an assembly of the keystone type carrying out suitably closing the buffer tank 3432, the substance flows through the orifice 320 of the intake nozzle 32 towards the flexible tank 2 and fills the latter. In the same way, the tank 2 being filled, as well as the buffer tank 3432, the opening of the distribution slot, by the operation of the part 3410 in the form of an open cylindrical sleeve, has the effect of causing the distribution of the viscous substance over a flow width, as well as dec laughs in conjunction with Figure 2a for example. When the flexible tank is empty, the tank 2, the buffer tank 3432 is filled with viscous substance to be dispensed, but in the absence of pressure. The cover 3422 is no longer subjected to pressure and a simple force exerted on it towards the interior of the buffer tank 3432 has the effect, the slot 3401 being open and in particular its extension 34010, of causing the recovery of the substance. viscous contained in the buffer tank 3432, the cover 3422 then playing the role of a piston. the viscous substance to be dispensed can also, in certain cases, be recovered by assay at the choice of the user when the latter is in a hospital environment in particular.

 The distribution nozzle as shown in FIG. 4 is particularly advantageous insofar as reloading does not require any disassembly. However, in a hospital environment, it is recommended not to use the reserve product contained in the buffer tank 3432, before recharging in order to preserve the aseptic.

 Of course, the container body 1 can be made of a rigid material, such as for example aluminum sheet or even a semi-rigid material or a flexible material such as polyvinyl chloride for example. In this case, and in particular in the case where the reservoir 2 is itself made of elastic material, in the absence of elastic means constituted by the elastic blades forming a spring 231 and 2Ce2, the user poLrr in order to ensure a better distribution of the substance to diszris t-. exert manual pressure on the container body for example.

 As shown in FIG. 1 a in particular, the container body 1 may comprise at least one vent denoted 10, this vent possibly being provided with a valve denoted 100.

 The vent denoted 10 and the valve denoted 100 can advantageously be used for the production of a viscous substance dispensing container in accordance with the object of the invention, particularly suitable for use-reuse by reloading on site of operation and use in the best aseptic conditions in particular.

 Preferential means making it possible in particular to recharge or ia recharge in viscous treatment substance, in accordance with the object of the invention, will now be described in conjunction with FIGS. 5 and 6.

 In accordance with FIG. 5, the reloading means can consist, in order to reload the flexible tank 2, of the dispensing container object of the invention described above, into a reloading cartridge comprising a rigid cartridge body 5, defining a volume greater than the internal volume of the container body I of the dispensing container according to the invention. The cartridge body 5 is provided with a head 51 for coupling to the valve 100 of the vent 10. The volume of the cartridge body has for example a primary vacuum, ie a vacuum of the order of 10 4 Torr per example. Of course, the coupling head 51 is provided with a valve denoted 510.

 In addition, the recharging means also comprise, as shown in FIG. 6, in order to ensure the filling of the flexible tank 2, a cartridge for filling the aforementioned tank. The filling cartridge shown in FIG. 6 comprises for example a cartridge body made of flexible material 6, this material being of course compatible with the viscous treatment substance. Of course, the viscous substance reserve is in overpressure relative to the internal cavity of the flexible tank.

 In an advantageous embodiment of the entire device which is the subject of the invention, that is to say the dispensing container as described above and the refill cartridge and the refill cartridge, the latter can advantageously consist into a cartridge body of flexible material, the cartridge body being filled at substantially ambient pressure. Of course, the cartridge body 6 comprises a male distribution head denoted 61, which corresponds substantially to the male end piece 34231 shown in FIG. 4. The distribution head 61 naturally includes an opening control valve denoted 610.

 The coupling u.- the filling cartridge having been carried out at the valve 3423, the valve 610 being kept closed, it then suffices for the user to engage the recharging cartridge 5 and in particular the coupling head 51, at the valve 100 of the vent 10 of the body of the container 1, the valve 510 of the coupling head 51 being of course kept closed. The successive actuation at the opening of the valve 610 of the filling cartridge and then of the valve 510 of the recharging cartridge then makes it possible, owing to the vacuum created in the container body 1, around the flexible tank 2, to ensure filling thereof with the viscous treatment substance. The cartridge body of flexible material of the filling cartridge 6 of course makes it possible to ensure correct filling of the flexible tank 2.

 Of course, the recharging method described above essentially applies, with a view to recharging on the operating site or on the intervention site. Of course, the recharging can be simply carried out from a pump allowing the injection under pressure of the viscous substance considered, with if necessary, depending on the degree of viscosity thereof, the use of an electro- magnet making it possible to reduce the resulting stiffness of the springs, taking into account the presence of the magnetic parts 2310 and 2320, as shown in Figures lb or lc.

 A particularly efficient viscous substance dispenser has thus been described, allowing use, both for the purpose of ensuring the distribution of food substances and of substances with cosmetological and / or medicinal properties. In the latter case, the embodiments of FIG. 3a, 3b and 4 appear particularly advantageous, since in the case of the use of a drug or cosmetic emulsion such as BIAFINE, a buffer reservoir with a capacity of 50 ml allows, in any event, even in the absence of pressure exerted for the distribution of this substance to an injured person to recover its contents in order to ensure immediate care.

 In addition, after obturation u: the distribution slot by the part in the form of an open cylindrical sleeve, the viscous substance remaining in the slot is protected from air and dirt and there is no risk of drying out. of the latter since the latter remains in contact with the mass of substance contained in the buffer tank.

Claims (23)

 1. Viscous substance dispensing container, comprising a container body (1) provided with a reservoir (2) containing said substance and a dispensing head (3) capable of being controlled upon opening or closure, characterized in that it comprises  - a reservoir (2) made of flexible material,  - pressure means (20, 23) making it possible to exert, on said reservoir (2), in the presence of substance, a permanent pressure; to allow on single command to open the dispensing head (3). the distribution of said substance.  2. Container according to claim I, characterized in that said tank (2) is constituted by a flexible elastic material (20) constituting the wall or walls of the tank, which, during loading of viscous substance, are put under mechanical tension, the pressure means (20) being constituted by the elastic tension of said walls.  3. Container according to one of the preceding claims, characterized in that said pressure means comprise elastic means (23), bearing on the internal wall of the container body (I), and making it possible to apply to the external wall said reservoir (2) made of flexible material, said permanent pressure.  4. Container according to claim 3, characterized in that said elastic means (23) consist of two elastic blades (231, 232) forming a spring, between which said flexible tank (2) is placed, one end or lateral edge of the blades elastic bearing against the irere wall of the container body (1) to form a flexible case 'in the' - :: l said flexible tank (2) is placed.  5. Fté-iplent according to one of claims 1 to 4, characterized in that said reservoir (2) made of flexible material is made of a material compatible with said viscous substance, material such as a latex, an elastomeric material or similar.  6. Container according to claim 5, characterized in that the upper end of the reservoir (2) made of flexible material is connected to a nozzle (30) directly secured to the dispensing head (3).  7. Container according to one of the preceding claims, characterized in that the dispensing head (3) comprises a closure cover (31) of the container body (1), said cover (31) comprising an inlet nozzle / distribution (32) of said viscous substance, directly connected to said nozzle (30) said nozzle (32) being provided with a valve (33).  8. Container according to claim 7, characterized in that the dispensing nozzle (32) of said viscous substance is extended by an adjustable dispensing nozzle (34).  9. Container according to claim 8, characterized in that said adjustable dispensing nozzle (34) comprises  - a cylindrical tube (340), said cylindrical tube (340) being provided on one of its generating lines with a slot (3401) of determined opening width,  - a means (341) for closing the slit, said means for closing the slit being capable of being controlled to release or close off said slit (3401) formed on the cylindrical tube.  10. Container according to claim 9, characterized in that said means (341) obturator comprises  - A part (3410) in the form of an open cylindrical sleeve, comprising at one of its lateral edges an extension (3411) forming an operating tongue, said part (3410) being engaged in rotation around said cylindrical tube (340) of way, on command of said operating tongue (3411), to release or close off said slot (3401) formed on the cylindrical tube,  - A return spring (3412) bearing on the cover (31) for closing the container body (I) and under the operating tongue (3411), said spring holding said slot (3401) in the closed position. no actuation of the operating tongue.  11. Container according to claim 10, characterized in that, in order to ensure a distribution of the viscous substance according to a determined flow width, said part (3410) in the form of an open cylindrical sleeve has at its lateral edge opposite the lateral edge comprising said extension (3411) forming an operating tongue, a closing edge (3411) comprising at least one part inclined relative to the longitudinal axis of said slot.  12. Container according to claim 11, characterized in that said closure edge (3413) comprises two opposite inclined parts (A, B) forming a chevron, the two inclined parts, of identical length, being connected by a notch (C) the dimension of which corresponds substantially to the thickness of the slot (3401).  13. Container according to one of claims 10 to 12, characterized in that said part (3410) in the form of an open cylindrical sleeve has representative graduations with respect to a mark of the opening dimension of the slot (3401).  14. Container according to one of claims 9 to 13, characterized in that the longitudinal axis of the cylindrical tube (340) and of the wall (3410) in the form of an open cylindrical sleeve is perpendicular to the longitudinal axis of the nozzle (32) admission / distribution.  15. Container according to one of claims 9 to 13, characterized in that the longitudinal axis of the cylindrical tube (340) and of the part (3410) in the form of an open cylindrical sleeve is parallel to the longitudinal axis of the nozzle (32) of admission / distribution and in the extension thereof.  16. Container according to one of claims 9 to 15, characterized in that the part (3410) in the form of a sleeve is slidably mounted on  tube cylindrical tube (340) between two lateral guides (3414,3415) ensuring  sealing.  17. Container according to one of claims 15 or 16, characterized in that said part (3410) in the form of an open cylindrical sleeve and the cylindrical tube (340) have a diameter much greater than the diameter of the nozzle (32) of inlet / distribution forming, for the latter, ventral axis, the space (3432) included between the distribution nozzle (32) and said open cylindrical sleeve (3410) and said cylindrical tube (340) forming a buffer tank.  18. Container according to revehdication 17, characterized in that the assembly constituted by said cylindrical tube (340) and by the open cylindrical sleeve (3410) forming a buffer tank comprises two circular sealing walls, a first circular wall (3421) , forming a bottom, being provided with a through hole (34210) and a second circular wall (3422), forming a cover, being provided with a blind hole (34220), said through hole and said blind hole having a diameter allowing the plugging said assembly onto the intake / distribution nozzle (32).  19. Container according to one of claims 17 or 18, characterized in that said valve (33) being removed, said wall (3422) forming a cover is provided with a valve (3423) directly connected to the inlet nozzle / distribution (32) said valve (3423) having an external female end piece (34230) allowing the loading of said flexible reservoir (2) in viscous substance from a male end piece (34231) connected to a reserve of viscous substance in relative overpressure by relative to the internal cavity of said flexible tank (2).  20. Container according to one of claims 1 to 19, characterized in that the container body (1) is made of a rigid or semi-rigid material.  21. Container according to claim 20, characterized in that said container body comprises at least one vent (10) with or without a valve (100).  22. Reloading cartridge for the flexible tank of a container according to one of claims 1 to 20 and 21, characterized in that it comprises a body (5) of rigid cartridge defining a volume greater than the internal volume of the container body (1) of said container, said cartridge body (5) being provided with a head (51) for coupling to the value (100) of said vent, said volume of said cartridge body having a primary vacuum [of the order of 10 4 Torr].  23. Cartridge for filling the flexible reservoir of a container according to one of the preceding claims I to 21, characterized in that it comprises a cartridge body of flexible material (6) containing a reserve of viscous substance in relative overpressure relative to the internal cavity of said flexible tank.