| 摘要 |
<p>An inflatable nasal packing device (10) employing a flexible keel (12) that can be removably inserted through the nasal cavity (50) and into the nasopharynx (60). A first inflatable bag (30) is attached to the anterior portion of the keel (12) that remains within the nasal cavity (50), and a second inflatable bag (40) is attached to the posterior portion of the keel (12) extending into the nasopharynx (60). The bags (30, 40) completely surround the keel (12) and are much larger than the relevant portions of the nasal cavity (50) and nasopharynx (60). This helps to ensure that the bags (30, 40) conform to irregularities in and apply uniform pressure to the interior surfaces of the nasal cavity (50), including the nasal septum (70). The device is initially inserted into the nasal cavity (50) with the bags (30, 40) in a deflated condition, and either or both of the bags (30, 40) are then inflated with air or fluid. When inflated, the first bag (30) conforms to and blocks the anterior portion of the nasal cavity (50) without substantial distension. Similarly, the second bag (40) conforms to and blocks the nasopharynx (60) without substantial distention. Inflation and deflation of the bags (30, 40) is controlled by two catheters (32, 42) extending along the keel (12).</p> |
