About: http://webisa.webdatacommons.org/89640973

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	Materials useful according to the inventor include biocompatible material such as stainless steel or nitinol and acid resistant polymers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com