Fluid dispensing channel, has funnel-shaped structure for guiding dispensing fluid into needle or into outlet opening, and accumulation area for collecting coarse foreign material, where opening does not lie at deepest point of channel

摘要

The fluid dispensing channel (1) has a funnel-shaped structure (2) for guiding dispensing fluid into a needle (4) or into an outlet opening (3), where the outlet opening does not lie at a deepest point of the fluid dispensing channel. An accumulation area (5) is provided for collecting coarse foreign material.