About: http://webisa.webdatacommons.org/413801343

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	ing Obstructions from a Blood Vessel??? discloses devices such as catheter based corkscrew balloons, baskets or filter wires and helical coiled retrievers.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com