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A two-channel dispensing device intended to close a vial includes two reservoirs (13, 14), two channels having an inlet end opening into one of the reservoirs and outlet end opening outside of the reservoir. First closing means are provided in each channel, which can change from a closed position to

A two-channel dispensing device intended to close a vial includes two reservoirs (13, 14), two channels having an inlet end opening into one of the reservoirs and outlet end opening outside of the reservoir. First closing means are provided in each channel, which can change from a closed position to an opened position in which a product can exit said reservoir. The two channels are isolated from each other at least between their inlet ends and the respective closing means. The reservoirs are formed by a single flexible pouch separated by a central partition (12) into first and second compartments (13, 14) performing the functions of the first and second reservoirs. The inlet end of the first channel opens into the first compartment (13) and the inlet end of the second channel opens into the second compartment (14), so that a single pouch makes it possible to form two reservoirs.

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1. Two-channel dispensing device intended to close a vial, which device is equipped with a first reservoir and a second reservoir,a first channel having a first inlet end, the first inlet end opening into the first reservoir, and having a first outlet end, the second outlet end opening outside of th

1. Two-channel dispensing device intended to close a vial, which device is equipped with a first reservoir and a second reservoir,a first channel having a first inlet end, the first inlet end opening into the first reservoir, and having a first outlet end, the second outlet end opening outside of the first reservoir, anda second channel having a second inlet end, the second inlet end opening into the second reservoir, and having a second outlet end, the second outlet end opening outside of the second reservoir,each of the first channel and the second channel being changeable from a closed configuration in which a product contained in the corresponding reservoir cannot exit the reservoir to an opened configuration in which a product contained in the corresponding reservoir can exit the reservoir, portions of the first and second channels including the first and second inlet ends being isolated from each other,the first and second inlet ends of the first and second channels being separated and spaced from each other,the first and second reservoirs are formed by a single flexible pouch separated into first and second compartments by a central partition, the first compartment forming the first reservoir and the second compartment forming the second reservoir, the first inlet end of the first channel opening into the first compartment and the second inlet end of the second channel opening into the second compartment, so that the first and second compartments are isolated from one another,wherein the pouch is formed by first and second panels overlapping each other and each having first and second opposite edges, the first called upper edge and the second lower edge, and first and second side edges, the upper, lower and side edges of the first and second panels being connected together so as to form a sealed assembly by forming an upper edge, a lower edge and side edges of the pouch, the central partition extending from the lower edge to the upper edge of the pouch, a portion of the first channel being interposed in the upper edge of the pouch between the upper edges of the first and second panels on one side of the central partition and a portion of the second channel being interposed in the upper edge of the pouch between the upper edges of the first and second panels on the other side of the central partition,wherein the first and second side edges of the pouch are folded between the first and second panels toward the central partition, so as to form first and second two-fold gussets in a space between the first and second panels. 2. The dispensing device according to claim 1, wherein the pouch is formed by a single strip folded to form the first and second panels and the pouch lower edge, wherein the central partition, a connection between the side edges of the first and second panels and a connection between the upper edges of the first and second panels are achieved by fixing the first and second panels one onto the other, so that the lower edge of the pouch is in the form of a fold between the first and second panels, and the central partition, the side edges and the upper edge are in the form of a fixation between the inner faces of the first and second panels. 3. The dispensing device according to claim 2, wherein the portions of the channels interposed in the upper edges of the first and second panels each have an outer cross-section in a shape of a diamond, angles of long axes of the diamonds being pointed and angles of short axes of the diamonds being rounded, the angles of the long axes of the first and second channels being aligned in a same plane. 4. The dispensing device according to claim 1, wherein the pouch comprises a single strip folded onto itself to form the folds of the two gussets. 5. The dispensing device according to claim 4, wherein a connection between the first and second panels at the pouch upper edge and at the pouch lower edge is formed partly by fixing the first and second panels together and partly by fixing each panel onto itself at the folds of the gussets. 6. The dispensing device according to claim 4, wherein at least some corners of the folds forming the gussets are cut, wherein the cut corners are located at the side edges of the pouch. 7. The dispensing device according to claim 1, wherein a connection between the first and second panels at the pouch upper edge and at the pouch lower edge is formed partly by fixing the first and second panels together and partly by fixing each panel onto itself at the folds of the gussets. 8. The dispensing device according to claim 7, wherein at least some of corners of the folds forming the gussets are cut, wherein the cut corners are located at the side edges of the pouch. 9. The dispensing device according to claim 1, wherein at least some corners of the folds forming the gussets are cut, wherein the cut corners are located at the side edges of the pouch. 10. The dispensing device according to claim 1, wherein the portions of the channels interposed in the upper edges of the first and second panels each have an outer cross-section in a shape of a diamond, angles of long axes of the diamonds being pointed and angles of short axes of the diamonds being rounded, the angles of the long axes of the first and second channels being aligned in a same plane. 11. The dispensing device according to claim 10, wherein the portions of the first and second channels interposed in the upper edges of the panels are connected by a wall extending from a pointed corner of the portion of the first channel interposed between the first and second panels toward the adjacent pointed angle of the portion of the second channel interposed between the first and second panels. 12. The dispensing device according to claim 1, wherein the sealed assembly includes a fixation of the side edges, the upper and lower edges and the central partition obtained by heat sealing. 13. The dispensing device according to claim 1, wherein the first and second panels are trapezoidal. 14. The dispensing device according to claim 1, wherein the pouch is rolled up around the central partition or accordion-folded on both sides of the central partition. 15. The dispensing device according to claim 14, wherein retaining means are provided to maintain the pouch in the rolled up or accordion-folded position. 16. The dispensing device according to claim 1, which is in the form of a two-channel valve for aerosol containers. 17. The dispensing device according to claim 1, wherein a first closing means is provided in the first channel and a second closing means is provided in the second channel, each of the first and second closing means being changeable from a closed position configuration in which a product contained in the corresponding reservoir cannot exit the reservoir to an opened position in which a product contained in the corresponding reservoir can exit the reservoir, the first and second channels being isolated from each other at least between their inlet ends and the respective closing means. 18. Two-channel dispensing device intended to close a vial, which device is equipped with a first reservoir and a second reservoir,a first channel having a first inlet end, the first inlet end opening into the first reservoir, and having a first outlet end, the second outlet end opening outside of the first reservoir, anda second channel having a second inlet end, the second inlet end opening into the second reservoir, and having a second outlet end, the second outlet end opening outside of the second reservoir,each of the first channel and the second channel being changeable from a closed configuration in which a product contained in the corresponding reservoir cannot exit the reservoir to an opened configuration in which a product contained in the corresponding reservoir can exit the reservoir, portions of the first and second channels including the first and second inlet ends being isolated from each other,the first and second inlet ends of the first and second channels being separated and spaced from each other,the first and second reservoirs are formed by a single flexible pouch separated into first and second compartments by a central partition, the first compartment forming the first reservoir and the second compartment forming the second reservoir, the first inlet end of the first channel opening into the first compartment and the second inlet end of the second channel opening into the second compartment, so that the first and second compartments are isolated from one another,wherein the pouch is formed by first and second panels overlapping each other and each having first and second opposite edges, the first called upper edge and the second lower edge, and first and second side edges, the upper, lower and side edges of the first and second panels being connected together so as to form a sealed assembly by forming an upper edge, a lower edge and side edges of the pouch, the central partition extending from the lower edge to the upper edge of the pouch, a portion of the first channel being interposed in the upper edge of the pouch between the upper edges of the first and second panels on one side of the central partition and a portion of the second channel being interposed in the upper edge of the pouch between the upper edges of the first and second panels on the other side of the central partition,wherein the pouch is formed by a single strip folded to form the first and second panels and the pouch lower edge, wherein the central partition, a connection between the side edges of the first and second panels and a connection between the upper edges of the first and second panels are achieved by fixing the first and second panels one onto the other,so that the lower edge of the pouch is in the form of a fold between the first and second panels, and the central partition, the side edges and the upper edge are in the form of a fixation between the inner faces of the first and second panels.