About: http://webisa.webdatacommons.org/96702015

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	To overcome this problem of accommodating different sizes of medical instruments and to allow for side to side movement, many other United States patents have been issued to seal surgical instruments such as cannulas or trocars.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca