A retrieval basket is provided for use with a surgical device adapted to capture calculi. The retrieval basket includes wires extending from a proximal end to a distal end of the basket wherein the wires converge at the proximal and distal ends. The wires in a proximal portion of the retrieval basket...http://www.google.com/patents/US6187017?utm_source=gb-gplus-sharePatent US6187017 - Retrieval basket for a surgical device
