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1. WO2020115024 - MOUTHPIECE AND NEBULIZER HAVING A MOUTHPIECE

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

Claims

1. Mouthpiece (40) for delivering an aerosol supplied by a nebulizer (100) to a user, the mouthpiece (40) comprising: a body (46) defining a fluid path (47) from an inlet port

(41) connectable to the nebulizer (100) to an inhalation opening (42) to be received in the mouth of a user; and

a filter (30) having a filter base (31) in fluid

communication with the fluid path (47), a filter top (33) detachably connected to the filter base (31) and a filter material (32) provided between the filter base (31) and the filter top (33) , wherein the filter top (33) has an exhalation opening (36) cooperating with a one-way valve (39) allowing exhaustion of fluid from the fluid path (47) through the filter material (32) to the outside of the mouthpiece upon exhalation of a patient through the inhalation opening (42); wherein the body (46) and the filter base (31) are an integrated one-piece unit.

2. Mouthpiece according to claim 1, wherein the integrated one-piece unit is an injection molded part.

3. Mouthpiece according to claim 1 or 2, wherein a distance (D) between the filter base (31) and the inhalation opening

(42) as seen in a side view is at least 30 mm, preferably at least 35 mm and not more than 50mm, preferably not more than 40 mm.

4. Mouthpiece according to anyone of the preceding claims, wherein a maximum height (H) of the mouthpiece (40) as seen in a side view is not more than 90 mm, preferably not more than

85 mm.

5. Mouthpiece according to anyone of the preceding claims, wherein a retaining rib (45) for being engaged behind the teeth of a user is provided on an upper side of the body (46) and/or on a lower side of the body (46) adjacent to the inhalation opening (42) .

6. Mouthpiece according to anyone of the preceding claims, wherein a front edge (51) of the body (46) surrounding the inhalation opening (42) is curved in a plan view and/or side view .

7. Mouthpiece according to anyone of the preceding claims, wherein the inlet port (41) is conical to be force-fittingly connectable to a boss (106) of the nebulizer (100).

8. Mouthpiece according to anyone of the preceding claims, wherein the inhalation opening (42) is oval-shaped in a front view, the oval shape having a minor axis and a major axis, wherein the filter base (31) extends from the body (46) in a direction along the minor axis.

9. Nebulizer (100) for delivering an aerosol to a patient comprising :

an aerosol generator (101);

a chamber (105) for temporarily accommodating the aerosol generated by the aerosol generator (101); and

a mouthpiece (40) according to anyone of claims 1 to 7.

10. Nebulizer according to claim 9, wherein the aerosol generator (101), the chamber (105) and the mouthpiece (40) are arranged in that order along the longitudinal direction of the nebulizer (100) .

11. Nebulizer according to claim 9 or 10, further comprising a fluid reservoir (103) or an interface configured to connect a fluid reservoir, wherein the aerosol generator (101) comprises a vibratable membrane (110) having a plurality of apertures and separating the fluid reservoir (103) and the chamber

(105) .

12. Nebulizer according to claim 11, wherein the fluid

reservoir (103) or the interface and the membrane (110) are arranged in that order along the longitudinal direction of the nebulizer (100) .

13. Nebulizer according to anyone of claims 9 to 11, wherein the chamber (105) has a length (Lc) along the longitudinal direction of the nebulizer between between 20 mm and 100 mm, particularly 50 mm to 100 mm.

14. Nebulizer according to anyone of claims 9 to 13, wherein the chamber (105) cooperates with an ambient opening (113) having a one-way valve (114) allowing ambient air to enter the chamber (105) from outside of the nebulizer (100) upon

inhalation of a patient through the inhalation opening (42) of the mouthpiece (40) .