| 摘要 |
<p>Valve for use in tracheotomy has a valve body (1) which lies on the stub of a tube (2) or is integrated into it, for insertion into the instrument, with a closure (3) to be inserted into the trachea. At least two sealing blades (4) form rings around the tube stub, axially offset from its axis (H), to lie against the skin of the trachea after insertion.</p> |
