RU98101919A

RU98101919A - INHALATOR FOR RECEPTION OF POWDER MEDICINES FROM BLISTER PACKAGES

Info

Publication number: RU98101919A
Application number: RU98101919A
Authority: RU
Inventors: Иоахим Геде; Вольфганг Геттенауэр; Андрэ Народило
Original assignee: Аста Медика Акциенгезельшафт
Priority date: 1996-06-30
Filing date: 1996-06-01
Publication date: 1999-09-27

Claims

1. Inhaler for receiving powder medicines from blister packs, made in the form of an elongated body, consisting of at least two parts (2, 3, 9, 13, 14, 23), pivotally connected to each other by one or several hinges (16, 17, 24), while in one of the parts of the housing there is a recess (30) - a support (29) for a blister pack in the form of a blister strip (5), consisting of a packaging film (33) with a number of individual convex blister troughs (31) made in the form of a spherical head containing powdered to the medicine (38), and a coating foil (39) located hermetically closing the cavity (31), and the housing is equipped with a mouthpiece (1) located on one narrow side, an air inlet (32) located on the opposite narrow side, and an air channel (7) for supplying the drug (38), from blister cavities (31) of the blister strip (5) located between them, while the coating foil (39) of the blister strip (5) embedded in the support (29) is adjacent to the air channel (7), and the housing is equipped with extruded of individual cavities (31) of the blister strip (5), characterized in that the means for extruding the individual cavities (31) are made in the form of at least one plunger (10) with a curved concave surface (37), the profile of which corresponds to the shape of convex blister hollows (31), while the edge of the concave curved surface (37) of at least one plunger (10) has the ability to affect the convex surface of the blister cavity (31), profiled respectively concave curved curved surface of the plunger asymmetrically Hex in a plane perpendicular to the longitudinal axis of the housing, wherein the tongue (8) is torn covering foil (39) hangs down without resistance to air flow in the air duct (7).

2. The inhaler according to claim 1, characterized in that the housing is made in the form of an elongated lower part (3) with a mouthpiece (1) and a tip (15) and an upper hinged part (23) connected to the tip (15) of the lower part (3) ) by means of a hinge (24), and the extruding means is made of at least one extruding plunger (10) with a curved concave surface (37) and a pressure plate (4), which are located on opposite sides of the plunger (10), while said extrusion means are integrated in the upper hinged part (23) of the housing, and extrusion The blister cavity can be opened without applying a linkage force to the extruding plunger (10).

3. The inhaler according to claim 1, characterized in that the extrusion means is made in the form of four extruding plungers (10) installed in the upper part (23) of the housing by means of pressure plates (4) for individually pressing the convex curved hollows (31) of the blister strip (5) after closing the case with a blister strip embedded in it (5).

4. The inhaler according to claim 1, characterized in that the casing is made in the form of at least an upper part (2, 9) and a lower part (3), while the upper part (2, 9) of the casing performs the function of extrusion means, having a lever structure whereby the application of force to the extruding plunger (10) during extrusion of the blister cavity occurs using a lever transmission.

5. The inhaler according to claim 4, characterized in that the extruding means is made in the form of a monolithic lever (2) with a movable extruding plunger (10).

6. The inhaler according to claim 4, characterized in that the extrusion means are made in the form of several levers (9), each of which is equipped with an extruding plunger (10).

7. The inhaler according to claim 1, characterized in that the upper part (2) of the housing is provided with thin walls (6) directed inwardly made of an elastic material, pressing the blister strip (5) against the support (29) to fix the blister strip (5) in the recess (30) with the inhaler closed.

8. Inhaler according to claim 1, characterized in that the extruding plunger (10) is made with a curved concave surface (37) with an edge located passing in a plane at an angle different from 90 ° relative to the longitudinal axis of the extruding plunger (10), and the aforementioned the edge plane is located intersecting the perpendicular plane located along the longitudinal axis of the housing with the effect of the plunger (10) on the blister cavity (31) in an asymmetric manner.

9. Inhaler according to claim 1, characterized in that the extruding plunger (10) is made with a curved concave surface (37) with an edge located passing in a plane at an angle of 90 ° relative to the longitudinal axis of the said extruding plunger (10), attached to the side of the housing by means of a lever arm (40) with the possibility of movement of the plunger (10) along an arc centered in the hinge of the lever (4) under pressure on the plunger by the user, ensuring that the edge of the surface (37) acts on the blister cavity (31) initially on one side.

10. The inhaler according to claim 1, characterized in that the mouthpiece is made in the form of a cylindrical part and a truncated cone, while in the cylindrical part there is a cyclone chamber (11) with tangential slots (12) for air supply and a secondary air supply channel (26) .

11. Inhaler according to claim 1, characterized in that the air inlet (32) is equipped with a check valve (21).