A needle point cover assembly for securely covering and protecting the needle point after a syringe has been used includes a cover in the form of an elongated hollow member that is open at one end for receiving the needle therein, and at its other end is mostly enclosed by an end wall having a hole through...http://www.google.fr/patents/US6015397?utm_source=gb-gplus-shareBrevet US6015397 - Needle point guard safety cap assembly
