Device for dispensing a fluid product

Abstract

The invention relates to a device for dispensing a fluid product, comprising a reservoir (10) containing fluid product and a dispensing head (20) provided with a dispensing opening (21) and with a radial flange (23) forming a finger rest during actuation, said reservoir (10) being axially movable relative to said dispensing head (20) during actuation, a plunger-stopper (50) being movable in said reservoir (10) in order to dispense fluid product through said dispensing opening (21) during actuation, said device comprising a blocking member (200) which blocks the axial movement of said reservoir (10) in said dispensing head (20), said locking member (200) being movable and / or deformable between a blocking position and a release position, said device comprising fins (210) arranged on or above said radial flange (23), said fins (210) being movable between a rest position in which said blocking member (200) is in the blocking position and a bearing position in which said blocking member (200) is moved and / or deformed into the release position, said blocking member (200) being assembled around an actuation body (31) that receives said reservoir (10), under said radial flange (23).

Description

[0001] Fluid product dispensing device

[0002] The present invention relates to a fluid product dispensing device. More particularly, the present invention relates to a single-dose nasal fluid product dispensing device for dispensing a pharmaceutical fluid product into the nose of a user via a single nasal spray.

[0003] A disadvantage of existing nasal fluid dispensing devices is the risk of unwanted actuation if the device is dropped.

[0004] The present invention aims to provide a fluid product dispensing device which does not reproduce the aforementioned drawbacks.

[0005] More particularly, the present invention aims to provide a fluid product dispensing device which avoids the risks of unwanted actuation, for example in the event of the device being dropped.

[0006] The present invention also aims to provide such a device in which the risk of unwanted actuation in the event of a fall is minimal or even zero.

[0007] The present invention also aims to provide such a device which is simple and inexpensive to manufacture and assemble.

[0008] The present invention therefore relates to a fluid product dispensing device comprising a reservoir containing fluid product and a dispensing head provided with a dispensing orifice and a radial flange forming a finger rest during actuation, said reservoir being axially movable relative to said dispensing head during actuation, a piston stopper being movable in said reservoir to dispense fluid product through said dispensing orifice during actuation, said device comprising a locking member which blocks the axial movement of said reservoir in said dispensing head, said locking member being movable and / or deformable between a locking position and a release position, said device comprising fins arranged on or above said radial flange, said fins being movable between a rest position,in which said locking member is in the locking position, and a support position, in which said locking member is moved and / or deformed into the release position, said locking member being assembled around an actuating body receiving said reservoir, under said radial flange.,

[0009] Advantageously, said reservoir is formed by a hollow, blind body, comprising a bottom and a single opening which, in the rest position, is sealed in a sealed manner by said piston stopper.

[0010] Advantageously, the device comprises a hollow insert inserted and fixed in said dispensing head, said insert comprising a piercing tip for piercing said piston stopper and thus connecting said reservoir to said dispensing orifice during actuation.

[0011] Advantageously, said drilling tip is produced separately and then assembled in said insert, in particular by force fitting or by overmolding.

[0012] In an advantageous variant, said drilling tip is molded in one piece with said insert.

[0013] Advantageously, said locking member comprises a plate provided with a hole through which said actuating body extends, said hole defining an edge which cooperates in the locking position with a groove in said actuating body, the diameter of said hole being greater than the external diameter of said actuating body, said plate being radially movable between a locking position, in which said edge is arranged in said groove, and a release position, in which said plate is laterally offset, so that said actuating body can slide axially in said hole.

[0014] Advantageously, said radial flange of said dispensing head comprises at least one fin extending axially upwards at rest and deformable downwards by the user.

[0015] Advantageously, said plate comprises an axial projection which extends axially upwards, and said at least one fin comprises on its lower surface a lug adapted to cooperate with said axial projection so that when the user presses on said fin, said lug pushes said axial projection laterally which will move said plate from its locking position to its release position.

[0016] Advantageously, the device comprises two diametrically opposed fins.

[0017] Advantageously, the device comprises an actuating body receiving said reservoir, said actuating body comprising a radial disc connected to said actuating body by one or more breakable bridges, said radial disc cooperating with a part of said dispensing head to form a precompression threshold that the user must overcome during actuation to break said breakable bridges and thus actuate the device.

[0018] Advantageously, said reservoir contains a single dose of fluid product dispensed in a single actuation.

[0019] These and other characteristics and advantages of the present invention will appear more clearly during the following detailed description, made with reference to the attached drawings, given as non-limiting examples, and in which: Figure 1 is a schematic perspective view of a fluid product dispensing device according to an advantageous embodiment, in position before actuation of the blocking member, Figure 2 is a schematic cross-sectional view of the device of Figure 1, Figure 3 is a view similar to that of Figure 1, in position after actuation of the blocking member and with the piston in the rest position, Figure 4 is a schematic cross-sectional view of the device of Figure 3, Figure 5 is a view similar to that of Figure 3, after actuation of the piston, Figure 6 is a schematic cross-sectional view of the device of Figure 5,and Figure 7 is an exploded perspective schematic view of the device of Figure 1.,

[0020] The terms "axial" and "radial" refer to the longitudinal central axis A of the device. The terms "top" and "bottom" refer to the upright position of the device shown in the figures.

[0021] Referring to the figures, a preferred embodiment of the present invention is shown. In this embodiment, the device is a single-dose device, that is to say that the reservoir contains a single dose of fluid product dispensed in a single actuation.

[0022] In the embodiment, a reservoir 10 containing fluid product to be dispensed, typically a liquid, is arranged inside a body forming a dispensing head 20. This dispensing head 20 comprises an axially oriented dispensing orifice 21. This dispensing orifice 21 is used to dispense a dose of fluid product out of said dispensing head 20 when the device is actuated by a user.

[0023] The dispensing head 20 comprises an elongated nasal tip comprising at its proximal axial end said dispensing orifice 21, as well as a lateral body 24, connected to said nasal tip 22 at a radial flange 23.

[0024] In the advantageous embodiment described in the drawings, a hollow insert 60 is arranged in the dispensing head 20, upstream of said dispensing orifice 21, said hollow insert 60 defining a central expulsion channel 61 and, in cooperation with the bottom wall of the dispensing head 20, a spray profile (not visible in the drawings) directly upstream of said dispensing orifice 21.

[0025] The channel 61 terminates at its lower end with a piercing tip 40. This piercing tip 40 may be molded in one piece with the insert 60. Alternatively, it could be made separately, for example from metal or another synthetic material than that of the insert, then assembled in said insert, for example by force fitting or by overmolding. The piercing tip 40 extends axially downwards beyond the elongated cylindrical body of the insert 60. The reservoir 10 is advantageously formed by a hollow and blind body, comprising a single opening defining a neck 11 and closed by a piston stopper 50. In the example shown, which is a single-dose unit, the reservoir 10 contains a single dose of fluid product to be dispensed by a single actuation of the device.The piston-stopper 50 is movable in the reservoir 10 between a rest position and an end of actuation position to dispense said fluid product through the dispensing orifice 21 during actuation.

[0026] Actuating means 30 are advantageously provided to enable the device to be actuated.

[0027] In the embodiment of the figures, these actuating means 30 comprise an actuating body 31 movable relative to the dispensing head 20, said actuating body 31 cooperating with said reservoir 10 to move it axially relative to the dispensing head 20, in the direction of the dispensing orifice 21.

[0028] To actuate the device, the user presses on the bottom wall 32 of the actuating body 31, to move the latter together with the reservoir 10 axially in the dispensing head 20, thus causing the piercing of the piston-stopper 50 by the piercing tip 40 and the distribution of the dose of fluid through the dispensing orifice 21. In the absence of an actuating body 31, the user could press directly on the bottom of the reservoir 10. During such actuation, the reservoir 10 is therefore pushed axially in the direction of the dispensing orifice 21, so that the piercing tip 40 will pierce the piston-stopper 50. The contents of the reservoir 10 are then connected to the dispensing orifice 21 and the user's pressure on the actuating body 31 moves the piston-stopper 50 in the reservoir 10 to ensure the distribution of the fluid product.

[0029] It should be noted that the present invention could also be applied to devices without a piercing tip suitable for piercing a piston stopper, such as for example described in documents WO2019122671, WO2021 069823, WO2022090675, WO2022101589, WO2022208014. Advantageously, the actuating body 31 comprises a radial disc 35 connected to the actuating body by one or more breakable bridges 36, notably visible in FIG. 17. This disc 35 cooperates with a part of the dispensing head 20 to form a precompression threshold that the user must overcome during actuation to break the breakable bridges 36 and thus actuate the device. These breakable bridges 36 provide security against unwanted actuation, but during an axial fall of the device, it is not excluded that the inertia of the device is sufficient to break the breakable bridges and thus the security provided by the breakable bridges 36 is not sufficient.

[0030] According to the invention, the device comprises a locking member 200 which blocks the axial movement of the reservoir 10 in the dispensing head 20. The locking member 200 is movable and / or deformable between a locking position and a release position. The user must first move and / or deform the locking member 200 to its release position before being able to actuate the device by axially moving the reservoir 10 in the dispensing head 20.

[0031] According to the invention, the device comprises fins 210 arranged on or above the radial flange 23, said fins being movable between a rest position, in which the locking member 200 is in the locking position, and a support position, in which the locking member 200 is moved and / or deformed into the release position.

[0032] Advantageously, the invention provides that the movement and / or deformation of the locking member 200 towards its release position is carried out when the user takes the device in hand, by pressing his fingers on the radial flange 23 of the dispensing head 20. Thus, the present invention makes it possible to guarantee safety in the event of the device falling, without requiring an additional movement of the user to actuate the device. When the user takes the device in hand, he places two fingers on the fins 210 arranged on or above the radial flange 23 of the dispensing head 20, and presses with the thumb on a distal axial bottom 32 of said actuating body 31.By pressing to actuate the device, he will first move the fins 210 with his fingers towards their support position, which moves and / or deforms the blocking member 200 towards its release position, and then the thumb will move the actuating body 31 to dispense the dose.

[0033] According to the invention, the locking member 200 is assembled around the actuating body 31, under the radial flange 23.

[0034] The locking member 200 comprises a plate 201 provided with a hole

[0035] 202 through which the actuating body 31 extends. The hole 202 defines an edge 205 which cooperates in the locking position with a groove 38 of the actuating body 31. The diameter of the hole 202 is greater than the external diameter of the actuating body 31, and the plate 201 is radially movable between a locking position, in which the edge 205 is disposed in the groove 38, and a release position, in which the plate 201 is laterally offset, so that the actuating body 31 can slide axially in the hole 202.

[0036] The plate 201 has an axial projection 203 which extends axially upwards.

[0037] In this embodiment, the radial flange 23 of the dispensing head 20 comprises at least one fin 210 extending at rest axially upwards relative to the radial plane formed by the radial flange 23, and deformable downwards by the user. Advantageously, this deformation is elastic, the fin 210 being urged towards its rest position and deformed towards its support position.

[0038] The fin 210 has on its lower surface a lug 211 adapted to cooperate with the axial projection 203 of the plate 201. Thus, when the user presses on the fin 210, the lug 211 will push the axial projection

[0039] 203 laterally to the left, as seen in Figures 2 and 4, which will move the plate 201 from its locking position to its release position. The device can then be actuated by pressing axially on the bottom 32 of the actuating body 31.

[0040] Advantageously, there are two diametrically opposed fins 210, on each side of the dispensing head 20. An advantage of the present invention is that it does not require any additional movement or displacement of a part of the device: the user normally takes the device in hand, with his thumb on the bottom wall 32 of the actuating body 31 and his fingers on the fins 210 arranged in the radial flange 23 of the dispensing head 20. By carrying out the usual actuating gesture, he will first move the fins 210 to unlock the blocking member 200, then actuate the device.

[0041] Of course, other variant embodiments are also conceivable, without departing from the scope of the present invention, as defined by the appended claims.

Claims

Claims A fluid product dispensing device comprising a reservoir (10) containing fluid product and a dispensing head (20) provided with a dispensing orifice (21) and a radial flange (23) forming a finger rest during actuation, said reservoir (10) being axially movable relative to said dispensing head (20) during actuation, a piston stopper (50) being movable in said reservoir (10) to dispense fluid product through said dispensing orifice (21) during actuation, said device comprising a locking member (200) which blocks the axial movement of said reservoir (10) in said dispensing head (20), said locking member (200) being movable and / or deformable between a locking position and a release position, said device comprising fins (210) arranged on or above said radial flange (23),said fins (210) being movable between a rest position, in which said locking member (200) is in the locking position, and a support position, in which said locking member (200) is moved and / or deformed into the release position, characterized in that said locking member (200) is assembled around an actuating body (31) receiving said reservoir (10), under said radial flange (23). Device according to claim 1, in which said reservoir (10) is formed by a hollow and blind body, comprising a bottom and a single opening which, in the rest position, is sealed by said piston stopper (50). Device according to claim 1 or 2, comprising a hollow insert (60) inserted and fixed in said dispensing head (20), said insert (60) comprising a piercing tip (40) for piercing said stopper, piston (50) and thus connect said reservoir (10) to said dispensing orifice (21) upon actuation. Device according to claim 3, wherein said piercing tip (40) is produced separately and then assembled in said insert (60), in particular by force fitting or by overmolding. Device according to claim 3, wherein said piercing tip (40) is molded in one piece with said insert (60).Device according to any one of the preceding claims, wherein said locking member (200) comprises a plate (201) provided with a hole (202) through which said actuating body (31) extends, said hole (202) defining an edge (205) which cooperates in the locking position with a groove (38) of said actuating body (31), the diameter of said hole (202) being greater than the external diameter of said actuating body (31), said plate (201) being radially movable between a locking position, in which said edge (205) is arranged in said groove (38), and a release position, in which said plate (201) is laterally offset, so that said actuating body (31) can slide axially in said hole (202).Device according to any one of the preceding claims, wherein said radial flange (23) of said dispensing head (20) comprises at least one fin (210) extending axially upwards at rest and deformable downwards by the user. Device according to claim 7, wherein said plate (201) comprises an axial projection (203) which extends axially upwards, and said at least one fin (210) comprises on its lower surface a lug (211) adapted to cooperate with said projection. axial (203) so that when the user presses on said fin (210), said lug (211) pushes said axial projection (203) laterally which will move said plate (201) from its locking position to its release position. Device according to claim 7 or 8, comprising two diametrically opposed fins (210). Device according to any one of the preceding claims, comprising an actuating body (31) receiving said reservoir (10), said actuating body (31) comprising a radial disc (35) connected to said actuating body (31) by one or more breakable bridges (36), said radial disc (35) cooperating with a part of said dispensing head (20) to form a precompression threshold which the user must overcome during actuation to break said breakable bridges (36) and thus actuate the device. Device according to any one of the preceding claims, in which said reservoir (10) contains a single dose of fluid product dispensed in a single actuation.

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