About: http://webisa.webdatacommons.org/111256326

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	One aspect of the invention includes apparatus for guiding insertion of surgical instruments into a surgical site while blocking escape of fluids, such as gas under pressure, therethrough from the surgical site.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk