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<http://webisa.webdatacommons.org/210837578>	<http://www.w3.org/ns/prov#value>	"Located Ibetween the lower end of tube 38 and the top of urine bag 41 is a ball valve mechanism 47 within housing 48 made of a suitable material such as Teflon, nylon or the like, which effectively serves as an anti-reflux device to prevent regurgitation from the urine bag 41 upwardly into tube 38." .
<http://webisa.webdatacommons.org/210837578>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/210837578>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .