Leiras Oy

Huhtamaki Oy

Huhtamki Oy

Tapio Lankinen

The invention concerns a method for preparing a physically stable and homogeneous powdered preparation containing particles of an active agent. The particles are suspended in a suspending agent in which the particles are insoluble, and the suspending agent is evaporated from the suspension. Physiologically acceptable additives such as a carrier may optionally be added to the suspension.

Method for making a pharmaceutical formulation

Medicament chamber in an inhalation apparatus

A device for a more effective pulverization of particles and/or agglomerates of a powdered inhalation medicament, comprises a chamber suitable for receiving medicament which is substantially closed at one end thereof. The chamber is provided with at least one air inlet port and a powdered medicament outlet port. The chamber is rotationally symmetrical in shape and preferably its cross-section perpendicular to the center axis thereof is substantially circular in shape. The chamber also is without substantial flow obstacles. The inlet and outlet ports are spaced from each other in the direction of the center axis of chamber, with the inlet port being designed to direct the air inflow into the vortex chamber substantially parallel to the tangent of the chamber.

Device for more effective pulverization of a powdered inhalation

Device intended for measuring a dose of powdered medicament for

The invention relates to an aerosol nozzle, comprising a socket (1) provided with an abutment surface for a hollow stem (2) in an aerosol container and therebelow an expansion chamber (3) with a nozzle orifice (4) in its wall. The distance between the bottom edge of nozzle orifice (4) and the abutment surface of socket (1) in the longitudinal direction of the socket does not exceed the outer radius of the hollow tube and that the nozzle orifice is located within a wall area defined by the end edge of the hollow tube and the intersecting line between such a cone and the wall of expansion chamber (3), which cone contacts the inner edge of the hollow stem, has its apex inside the hollow stem on its center line, and has a cone angle of 40.degree..

Growing community of inventors

Turku, Finland

Tapio Lankinen