| 摘要 |
Device to be fitted in a tracheostoma, comprising a filter housing (10) for receiving a moisture and heat exchanging filter (11) said filter housing having a first opening (12) to be connected to the patient's stoma and at least one second opening (14) at the opposite side of the filter (11). According to the invention there is provided at said second opening (14) of the filter housing (10) a valve member for closing said second opening, said valve member being adapted to be manually closed by means of a finger and to be opened by returning resiliently.
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