About: http://webisa.webdatacommons.org/293570212

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	In one particular embodiment of the present invention, the tapered tip of the sheath is, to start with closed or substantially closed, such as by a membrane which can be ruptured later in the procedure, as required.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com