| 摘要 |
A drainage device (100) comprising means for drainage (102) and means for removing an occlusion (116, 136, 150). A method of unoccluding a means for drainage comprising:providing the drainage device (100) according to the present invention; placing the drainage device into an area to be drained; allowing occluding material (134) to occlude the means for drainage (102); a nd removing the means for removing an occlusion (116, 136, 150) from the means for drainage (102), thereby unoccluding the means for drainage (102).</SDOAB >
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