| 摘要 |
<p>Percutaneous tracheostomy. The trachea is penetrated by a hollow needle and a guide wire (43) is inserted into the trachea through the needle. The needle is removed leaving the wire (43) in the trachea. An instrument specifically adapted for use in tracheostomy operations, having two jaws (8) each with a groove (6) which cooperate when the jaws (8) are closed to form a passage, is inserted into the trachea opening with the guide wire (43) extending through the passage. The instrument is opened after insertion to widen the trachea opening. The instrument jaws (8) are curved so that when they are inserted into the trachea and spread to dilate the opening there is minimal risk of damage other than in the region of dilation. A tracheostomy tube is inserted into the opening via the wire (43) and the wire is withdrawn.</p> |
