| 摘要 |
A nose cap includes a hollow body having a first opening, a second opening communicating with the first opening via a first passage and an outer covering having a third opening communicating with the first opening of the hollow body and a fourth opening communicating with the third opening via a second passage. An air chamber is formed between the hollow body and the outer covering after extension of the hollow body into the second passage. The air chamber is able to provide comfort to a patient. |
