About: http://webisa.webdatacommons.org/406017459

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	The present invention relates to systems for detecting when the tip of a medical instrument such as a trocar or an insufflation needle penetrates a cavity wall of a patient such as the wall of the abdominal cavity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com