DISPENSING ARRANGEMENT

摘要

A dispenser for doses of a viscous fluid comprises a bag (40) with an outlet at the bottom, and an insert member (50) inside the bag and fixed in the outlet, the insert member comprising a lower, relatively rigid region (51) with an outlet (52), and an upper region (53) which is arranged to be squeezed through the bag walls for dispensing a dose and which restores itself after squeezing to substantially its uncompressed state and moves apart the bag walls. The outlet (52) of the insert member may have narrow slits serving as a valve, or alternatively the lower region (51) may comprise an internal slit diaphragm (57, Fig. 9 not shown). The bag (40) may be housed within a holding unit (60) incorporating means for squeezing the bag.