| 摘要 |
A ventilation plug is provided for the treatment of middle-ear diseases. The ventilation plug comprises a front edge portion tapered at an acute angle and an intermediate portion made of water repellent synthetic resin. The intermediate portion is arranged for engagement with the eardrum of a patient. The ventilation plug is designed so as to have a minimized size and thus, the insertion to the eardrum can be executed readily and easily; and the plug is also designed to be air permeable and water repellant.
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