Various embodiments of the shape memory alloy staple include features such as barbs on the inner and outer surfaces of the prongs in the shape memory alloy staple as well as...http://www.google.ca/patents/US6325805?utm_source=gb-gplus-sharePatent US6325805 - Shape memory alloy stapleAdvanced Patent SearchPublication numberUS6325805 B1Publication typeGrantApplication numberUS 09/421,903Publication