| 摘要 |
<p>A multi-layered transtracheal catheter (10). The transtracheal catheter (10) has a multi-layer or double wall construction formed of two materials. One material is resistant to kinking. The other material is resistant to mucous buildup. Together, they form a catheter (10) that can remain within the trachea (26) for an extended period of time without needing to be removed for cleaning. The distal end (14) of the catheter (10) may be deflected from the remainder of the catheter so that when the catheter (10) is inside the trachea (26) and held against the wall (34) of the trachea (26), the distal end (14) of the catheter (10) is deflected away from the wall (34) so that the distal end (14) is not in contact with the wall (34) of the trachea. The result is reduced irritation to the trachea wall (34), reduced occlusion of the distal end (14) by mucous buildup, and a more directed and efficient spray of material from the catheter (10) into the right and left main skin bronchi of the right and left main stem bronchi (28) of the lungs.</p> |
