Sentence:  The abdominal <WSD>vacuum pack</WSD> and commercial vacuum-assisted abdominal dresssings both allow for rapid, easy reentry into the peritoneal cavity, control and quantification of effluent, and preservation of the facia for later definitive closure. 
Meaning of the word marked with <WSD> tags:  A device which becomes rigid when suction is applied to it, used to pack a wound.