Animal hypodermic syringe

摘要

A hypodermic syringe, especially for animals, has a valve (4) as a membrane disc (5), e.g. of silicon or rubber. It is clamped round its circumference (5a) at the suction pipe entry (2a) in a flow chamber (6) between the syringe body (1) and the suction pipe (2). The syringe allows a flow at an inner ring seating (7) at the overpressure side (8), with sealing against the suction pipe (2) at an outer ring seating (9). The inner and outer ring seating surfaces (7a, 9a) lie at least closely in a plane or fit into each other so that the membrane cross section lie (5b) is corrugated.