About: http://webisa.webdatacommons.org/53068597

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Where a blood vessel is almost totally occluded by an obstruction such as plaque, but there exists at least a small passage 28a in the obstruction, catheter device 70 (FIGS. 15-17) may be used to bore a hole in the undesired material 28.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es