| 摘要 |
<p>The invention relates to a metering device (1) for the volumetric metering of an in particular pharmaceutical powder (2) and for the simultaneous filling of a plurality of target cavities (3) with the metered powder (2), to a metering system and to an associated method. The metering device comprises a metering station (5) with a powder storage container (6), a filling station (7) and a movable metering member (8). The metering member (8) has a flat transfer surface (9) in which a plurality of metering cavities (10) corresponding to the number and geometrical distribution of the target cavities (3) are incorporated. The metering station (5) has a flat contact surface (11) for the transfer surface (9) with metering openings (12) and metering channels (13), which contact surface is provided for sealing contact of the metering member (8) by means of the transfer surface (9) thereof. The metering cavities (10) each have an open side (14) and a base which is opposite with respect thereto, wherein the base of the respective metering cavity (10) is formed at least in sections by an air-permeable filter element (15). A central pressure channel (16) which is connected in a pressure-transmitting manner to the metering cavities (10) through the filter elements (15) and by means of which a negative pressure difference is applied for the metering, is formed in the metering member (8).</p> |
