| 摘要 |
A switching mechanism for a swallowable medical device has first and second contacts and an expandable member. The medical device has a shell and a first circuit unit provided in the shell. The first and second contacts are electrically connectable with each other, and an operation of the first circuit unit is switched by electrically connecting the first and second contact. The expandable member is capable of expanding by absorbing a predetermined liquid. The expandable member displaces the second contact by expanding such that the second contact gets electrically connected to or disconnected from the first contact.
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