| 摘要 |
<p>An external end device for permanent catheters suitable for isolating a liquid flow from the environment has a body (1) connectable on one side to two catheters (2, 2), and on the other side to a closure lid (8) or a treatment equipment. Provided in the body are two valves interrupting the liquid flow in the two catheters, in the form of so-called pinch valves, the body having a base element (6) housing two elastic tubes (36, 36) acting as pinch valve sleeves that are compressible until the closure of their lumen and are situated downstream of their respective catheters and upstream of the respective connectors (18, 18), and a covering element (7) containing two flow control units (10, 10) for the pinch valves in such a position to interact with the two elastic tubes in order to achieve their closure and opening by pinching and releasing them, respectively.</p> |
