| 摘要 |
PURPOSE: Two collecting containers connected in series for suction use in operation is provided not to delay the operation due to the full-filling of the collecting containers during the operation. CONSTITUTION: The two containers are linked to a suction apparatus on an operation room and are connected in series. If the lower container is firstly filled, then the upper container is filled. As the lower container is filled, it is directly connected to the upper container while operating an alarm system due to the self weight to thus empty the container. Thus, the container for suction material is emptied with time without stopping the operation.
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