<http://webisa.webdatacommons.org/61493566>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/171000447>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/61493566> .
<http://webisa.webdatacommons.org/61493566>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.ca> .
<http://webisa.webdatacommons.org/61493566>	<http://www.w3.org/ns/prov#value>	"The present invention teaches a novel rotating cutting head catheter for creating a passage through refractory material, such as chronic total occlusions, refractory atherosclerotic plaque, gallstones, kidney stones, etc. from diseased arteries, veins, or other body lumens." .