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1. WO2007010579 - DEVICE FOR ADMINISTERING FLUIDS IN NEBULISED FORM

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C L A I M S
1. A device for administering fluids in nebulised form, comprising:
- a bulb (2) in which a collection chamber (3) for the fluid to be nebulised is formed,
- a duct (4), one end (5) of which may be connected with a compressed gas supply, extending through the bulb (2) and bearing, at its opposite end, a nebulisation nozzle (21) supplied via a riser (18) extending into the chamber (3),
characterised in that the duct (4) extends beyond the chamber and the nozzle (21) is disposed at a distal end thereof with respect to the chamber (3).
2. A device according to claim 1, wherein the bulb (2) comprises a cup formation and a cover (14) which closes the cup formation in order to define the chamber (3), the duct (4) extending from a base of this cup formation via the cover (14) and beyond the latter.
3. A device according to claim 2, wherein the cover bears a tubular member (15) which may be fitted as a hood on the duct coaxially with, but spaced from it, so that a space (16) extending up to the vicinity of the base of the chamber (3) is formed between the duct (4) and the tubular member (15) in order to form the riser (18).

4. A device according to one or more of the preceding claims, wherein the duct (4) and the tubular member (15) both have, at a corresponding end, respective reciprocally spaced end walls (8, 9) traversed by respective holes (9, 20) of predetermined diameter, in order to define the nozzle (21).

5. A device according to one or more of the preceding claims, wherein the cover (14) is provided with a tubular sleeve (23) extending coaxially to the tubular member (15) beyond the nozzle (21) in order to form a nasal supply guide.
6. A device according to claim 5, wherein the nozzle (21) generates a conical nebulisation and the geometry and extension of the tubular sleeve and the nozzle are selected such that the nebulisation cone of the nozzle is projected entirely externally to the nasal supply guide.

7. A device according to claim 5 or 6, wherein at least one passage (26) is defined between the tubular sleeve (23) and the nozzle (21) in order to balance the pressure generated in the nasal cavity with the pressure in the chamber (3) or with external atmospheric pressure.
8. A device according to one or more of the preceding claims, wherein through openings (25) are provided in the cover (14) for aeration and/or the return of the fluid to the chamber (3).
9. A device according to claim 7, wherein the cover (14) is provided with a raised edge (24) concentric with the nozzle (21) externally thereto and provided with these through openings (25).
10. A device according to one or more of the preceding claims, wherein the cover (14) is detachably engaged on the cup formation in order to close the latter.
11. A device according to claim 9, wherein the cover (14) may be replaced by an auxiliary cover (30) adapted to close the chamber and the nozzle.

12. A device according to one or more of the preceding claims, wherein the chamber is preloaded with a drug.
13. A device according to claim 11, adapted for single use.