| 摘要 |
The invention provides a flexible ear tube (10) for draining and ventilating the middle ear, the tube (10) having a flexible substantially tubular stem (12) with a lumen (14), the stem (12) being sized to be inserted through an incision in the eardrum (16) and the tube having at least two separate flexible contact surfaces (18) extending from the stem (12) and adapted to engage different spaced-apart inner surfaces of the eardrum 16, each of the contact surfaces (18) having a first axis XX extending substantially perpendicularly to the central axis of the stem and a second axis YY extending substantially perpendicularly to the first axis wherein one of the axes is between 0.6 and 3 mm and the second of the axes is between 1 and 7 mm in length. |
