Abstract: A pump attachment member, produced by plastic moulding, having a skirt, an annular plate and a receiving sleeve defining a receiving recess formed by a moulding pin which is forcibly withdrawn on release from the mould, the receiving recess having an inwardly projecting annular inlet rib, the attachment flange of a distribution member being held in the receiving recess by said annular inlet rib. The annular inlet rib having retaining segments for engaging with the attachment flange and mould release segments for engaging with the moulding pin on release from the mould.

Abstract: A dispenser device for fluid or powder, including an air expeller (20) and a reservoir (30). The reservoir (30) has an air inlet (31) connected to the air expeller (20) and a composition outlet (32) connected to a dispenser opening (10), and is removably mounted on the air expeller. After actuation, the empty reservoir can be removed from the air expeller and replaced with a new reservoir. The air inlet (31) is closed by a first closure element (40) and the composition outlet (32) is closed by a second closure element (50). A mechanical opening system (61, 62) co-operates with the first and second closure elements to expel each closure element from the closed position. The mechanical opening system has a first rod (61) secured to the air expeller (20), and a second rod (62) secured to the dispenser head (1), co-operating with a closure element during actuation.

Abstract: A method for analysing a device for spraying a pharmaceutical fluid product including the following steps: providing a spray head of a device for spraying a pharmaceutical fluid product, the spray head having a spray orifice; providing a receiving surface having a plurality of discrete contact zones separated by voids, the contact zones capable of being coated with a heat sensitive material, bringing the receiving surface to a temperature T2, passing a flow of compressed gas through the spray orifice, the flow of compressed gas at a temperature T1 which differs from T2, sending the flow of compressed gas at temperature T1 onto the receiving surface at temperature T2, visualising the impact zone for the flow of compressed gas on the receiving surface, and analysing the visualisation of the impact zone in order to determine whether the spray head complies with predetermined specifications.

Abstract: A fluid dispenser device having a dispenser head; an air expeller; and a reservoir containing a single dose of fluid. The reservoir includes a proximal axial end and a distal axial end, and is removably mounted so that after the device has been actuated, the empty reservoir can be removed from the device and replaced by a new full reservoir. The air expeller is adapted to return to its rest position to enable a new actuation with the new full reservoir. The dispenser head includes a proximal perforator tip to perforate the proximal axial end of the reservoir. The device includes a movable perforator member that slides axially around the dispenser head between a loading position and an actuation position and includes a distal perforator tip adapted to perforate the distal axial end of the reservoir when the movable perforator member is moved into its actuation position.

Abstract: Fluid product dispenser comprising: a reservoir (R) having a neck (1), a dispensing head (T) mounted axially on the neck (1) and comprising a dispensing member (P), and a fastening ring (F) engaging both the neck (1) and the dispensing member (P), the fastening ring (F) comprising a skirt (2) including a plurality of internal latching projections (211), characterised in that the neck (1) defines externally a plurality of horizontal latching shoulders (130) oriented downward and a plurality of release ramps (112), the latching projections (211), initially engaged below the horizontal latching shoulders (130), being constrained radially outward on the release ramps (112) by rotation of the skirt (2) around the neck (1), thus releasing the latching projections (211) of their latching engagement from below the latching shoulders (130).

Abstract: A fluid product dispenser comprising: a reservoir (R) having a neck (1) defining at least one horizontal latching shoulder (1), a dispensing head (T) mounted on the neck (1) and comprising a dispensing member (P), and a fastening ring (F) engaging both the neck (1) and the dispensing member (P), the fastening ring (F) comprising a skirt (2) comprising at least one internal latching projection (21) that is received below said at least one horizontal latching shoulder (121), characterised in that said at least one horizontal latching shoulder (121) is formed on an oval base (11) of the neck (1) that has an oval outer wall (110) with a horizontal cross-section of generally oval shape, except at said at least one horizontal latching shoulder (121).

Abstract: A fluid product dispenser having a vessel and provided with a neck forming at least one helical thread, and a dispensing head mounted on the neck of the vessel, the head having a dispensing member and a fastening member engaging both with the threaded neck and the dispensing member The fastening member has a deformable and malleable skirt intended to engage with the threaded neck, and a rigid collar engaged around the skirt to push the skirt radially against the threaded neck in such a way as to deform the skirt against the thread so as to create a thread imprint in the skirt. The helical thread has an intermediate portion that has, on at least some of its length, a cross-section that decreases in the unscrewing direction and increases in the screwing direction, such that the unscrewing torque decreases and the rescrewing torque increases.

Abstract: A nasal powder dispenser device (100) having a reservoir (110) containing a dose of powder; a nasal dispenser head (120) for inserting into a user's nostril, the nasal dispenser head including a dispenser orifice (121); and an air expeller (130) that, during actuation of the nasal powder dispenser device (100), generates a flow of compressed air so as to dispense a dose of powder into the nostril through the dispenser orifice (121). The air expeller has an air chamber (131) and a piston (132) that slides in airtight manner in the air chamber (131) so as to compress the air contained in the air chamber (131); the nasal powder dispenser device (100) presenting the following properties: a pressure, of the flow of compressed air generated by the air expeller (130), that is higher than 0.7 bar; and a volume, of the air chamber (131), that is greater than 1700 mm3.

Abstract: A fluid dispenser head (T) including a spray wall (26) that is perforated with a network of holes (O) through which the fluid under pressure passes so as to be sprayed in small droplets; the dispenser head being characterized in that the network of holes (O) comprises at least two series of holes (O), with the holes (O) of a given series presenting holes that are substantially identical in size, and with the holes (O) of different series presenting holes that are different in size, such that one series of holes (O) generates a spray of small droplets with droplet sizes that define a first Gaussian distribution, while another series of holes (O) generates a spray of small droplets with droplet sizes that define a second Gaussian distribution that is offset relative to the first Gaussian distribution, thus producing a complex spray having at least two distinct Gaussian distributions.

Abstract: A method of analyzing a spray generated by a spray device for spraying pharmaceutical fluid, including providing a spray head of a spray device for spraying pharmaceutical fluid, the spray head including a spray orifice; causing a test fluid to pass through the spray head towards the spray orifice, the test fluid being air at a temperature that is different from ambient temperature; displaying, by strioscopy, the flow of test fluid leaving the spray orifice; and analyzing the display of the test-fluid flow so as to determine whether or not the test-fluid spray coming from the spray head complies with predetermined specifications. The cycle time for analyzing one spray head is less than 1.5 seconds, advantageously less than 1 second.

Abstract: A fluid dispensing device having an air expulsion system (200) with a pump (200) with an external body (210) containing a pump body (220; 270) with a pumping chamber (225) and a piston rod (230). The pump body has a proximal hollow body and a distal hollow body fixed to one another. The rod has a proximal rod part (231), a central rod part (232) and a distal rod part (233), the outside diameter of the central rod part (232) greater than the diameters of the other two. The central rod part supports a first seal (237) and a second seal (236), and the distal rod part supports a third seal (235). The proximal rod part has a central passage (234) extending beyond the first seal and opens laterally to the outside between the first and second seals. The distal hollow body contains a spring.

Abstract: A fluid dispenser device including a body; a reservoir containing one or two doses of a fluid, the reservoir including a stopper that closes the reservoir in leaktight manner before actuation; a dispenser head that is provided with a dispenser orifice; and dispenser mechanism for dispensing at least a portion of the fluid through the dispenser orifice during actuation. The device further includes a needle having a tip that is adapted to pierce the stopper during actuation, the reservoir being filled with the fluid and being closed with the stopper under a vacuum, so that the residual volume of air present in the reservoir between the fluid and the stopper is substantially zero.

Abstract: Metering valve for dispensing a fluid product, having a valve body containing a metering chamber defined by a chamber insert and two annular seals, a valve seal and a chamber seal. The chamber insert has a cylindrical wall, an upper edge cooperating with the valve seal and a lower edge that cooperates with the chamber seal. A valve slides axially in the valve body between a rest position and a dispensing position, so as to selectively dispense the contents of the metering chamber, the valve being urged towards its rest position by a spring that cooperates with the valve body and with the valve. The upper edge of the chamber insert has an annular cutout formed on the radially inner side of the upper edge, so that the width of the upper edge in contact with the valve seal is always the same, whatever the width of the cylindrical wall.

Abstract: A pump for a fluid product having a pump body held in place by a valve holder fastened in the pump body; a piston sliding around a rod, provided with an inner axial channel axially closed on the lower side of the rod and communicating with the outside of the rod via a radial orifice, the piston having an outer sealing lip and an inner sealing lip; a gland having upwards an oblique or frustoconical surface of inclination appropriate to that of the inner sealing lip of the piston; an actuating spring between the rod and piston; and a return spring between the valve holder and the rod, urging the piston towards its rest position. The valve holder has an axial sleeve having an axial rib forming a mechanical stop in the actuating position between the lower axial end of the rod and the rib.

Abstract: Device for dispensing a pulverulent product comprising a reservoir unit (100) connected on the one hand, to an air expulsion system (200) and on the other hand to a dispensing head (300) provided with a dispensing orifice (310), said reservoir unit (100) comprising a reservoir (110) having substantially the form of a hollow cylinder, with a distal opening (111), a proximal opening (112), and a metering passage (113) connecting said distal and proximal openings (111, 112), a one-way valve (115) being positioned between said metering passage (113) and said distal opening (111), said proximal opening (112) of said reservoir (110) forming a filling cone which tapers towards said metering passage (113) to facilitate filling of said metering passage (113) with a dose of powder.

Abstract: A device for dispensing a fluid product having a container (10), a dispensing member (20), a dispensing head (30) with an outlet (31), an actuating member (60) slidably mounted in the dispensing head, and a lateral actuating system cooperating with the actuating member. The actuating member has a cylindrical body (65) and a flexible tab (61) having a radial projection (62), the flexible tab extending axially into the cylindrical body (65) and radially deformable between an undeformed position, in which the projection (62) projects radially out of the cylindrical body, and a deformed position, in which the projection does not. The lateral actuating system has two side levers (35, 36) diametrically opposed, deformable and/or movable laterally, a flexible spacer (37) connecting the two side levers, the flexible spacer cooperating with the projection (62) and axially deformed during actuation to axially move the actuating member relative to the dispensing head.