About: http://webisa.webdatacommons.org/269163653

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 the present invention, the fixation helix, or other fixation device, such as a barb or a hook, is provided with a longitudinal groove, not unlike the groove found in the teeth of certain venomous snakes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr