| 摘要 |
<p>A vacuum adjustment valve, particularly for thoracic drainage devices, which comprises a valve body (2) arrangeable on the air intake duct (3) and forming a first region (6) connected to the intake duct (3) and a second region (8) connected to the drainage device (11). A regulator (20) is arranged between the regions (6,8), is struck by the air stream and is operatively connected to a flow control element (33) which controls a port (34) for connection between the second region (8) and an environment at atmospheric pressure. Adjustable elastic closure elements (40,41) act on the flow control element (33). <IMAGE></p> |
