| 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 a) providing the drainage device ( 100 ) according to the present invention; b) placing the drainage device into an area to be drained; c) allowing occluding material ( 134 ) to occlude the means for drainage ( 102 ); and d) removing the means for removing an occlusion ( 116, 136, 150 ) from the means for drainage ( 102 ), thereby unoccluding the means for drainage ( 102 ).
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