| 摘要 |
A medical device including an element defining a central lumen and a secondary lumen. The device includes a prefilled balloon having an interior surface operatively communicates with the secondary lumen. The device includes a securement balloon having an interior surface communicating with the secondary lumen. The securement balloon, secondary lumen, and prefilled balloon define a closed fluid system. The securement balloon is stronger than the prefilled balloon so fluid in the closed fluid system inflates the prefilled balloon before inflating the securement balloon. The device includes a transfer sleeve movable from a first position spaced from the prefilled balloon to a second position positioned around the prefilled balloon to urge fluid from the prefilled balloon into the securement balloon. When the transfer sleeve is in the first position, the securement balloon is substantially collapsed. When the transfer sleeve is in the second position, the securement balloon is inflated. |
