FLUID RESERVOIR WITH LEVEL MEASUREMENT AND A DOSING SYSTEM, A WITHDRAWAL SYSTEM AND A COMBINED DOSING/WITHDRAWAL SYSTEM

摘要

The invention relates to a fluid reservoir with level measurement comprising a base body (10) and a channel (12), which is configured in the base body and which is provided with an inlet (14) and an outlet (16), whereby the dimensions of the channel cross-section are selected in such a manner that a fluid (18) that can fill the channel forms a fluid meniscus (20) which separates a section (12b) of the channel filled with fluid from an unfilled section (12a) of the channel in which no fluid is present. The position of the meniscus with regard to the channel is essentially independent from the orientation of the fluid reservoir. The fluid reservoir additionally comprises a detection device (32, 22, 24) for detecting the position of the fluid meniscus or of the channel in order obtain, from the position of the fluid meniscus, the level and/or a change in the level of the fluid reservoir. The inventive fluid reservoir is especially well-suited, in conjunction with a capacitive level detection, as an economical medicament reservoir.