A flexible irrigation syringe tip with a "Luer Lock" or other type of connector commonly used in medical tubing includes a flexible needle. The needle shaft is preferably made of a material which is bendable but which returns to its original shape, such as silicone, polypropylene or other flexible metal...http://www.google.de/patents/US6162202?utm_source=gb-gplus-sharePatent US6162202 - Flexible syringe needle
