| 摘要 |
The invention relates to capsules for use as reservoir for accommodating pharmaceutical preparations for powder inhalers consisting of two capsule elements open on one side, a capsule body and a capsule top which can be inserted telescopically into each other via their openings so that a stable, sealed cavity of defined volume is formed, two annular channels lying behind one another, running peripherally round the casing of the capsule element are formed on the inside or outside of the one capsule element in the vicinity of its opening and two annular optionally interrupted raised sections lying behind one another, running peripherally round the casing of the capsule body are formed on the outer or inner casing of the other capsule element in the vicinity of its opening, the raised sections and the channels catching in one another, the first raised section viewed from the opening of the one capsule element and the first channel on the other capsule element, forming by catching a pre-seal, the opening of which by pulling apart the two capsule elements requires a first force, and the second raised section viewed from the opening of the one capsule element and the first channel on the other capsule element together with the first raised section of the one capsule element and the second channel on the other capsule element form by respective catching a main closure, for the opening of which by pulling apart the two capsule elements requires a second force and the first force to be applied for opening is smaller than the second force. |
