| 摘要 |
The control device consists of an element made of semi-resilient material and having a generally Y-shaped configuration, the three arms thereof being tubular. A central arm encloses an internal tubular ferrule, the end of which may be engaged, in a leak-proof manner, by intentional deformation of the element, in one or the other of the two other arms of the element, one of which is closed-off permanently. The device is used in particular for controlling the flow of fluids in laboratory and, especially, medical apparatuses. |
