Microstructured valve for shutting off flow between two fluid channels comprises recess with gently sloping sides in base which is covered by film which can be pressed into it to cut off flow

摘要

Microstructured valve for shutting off flow between two fluid channels comprises a recess (30) in a base (20). This is covered by a film (21) which can be pressed into it to cut off flow. The recess has gently sloping sides (33).