About: http://webisa.webdatacommons.org/24119839

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	By rotating the spool-like structure in one direction or the other, the surgeon or other user can shorten (tighten) or lengthen (loosen) the replacement chordae.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com