parallel to the longitudinal axis and plays an integral role in securing blunt 130 over the needle tip which will be described in more detail later cam 40 further includes cam arm 70 cam arm 70 is generally rectangular shaped having first cam lock 72 and second cam lock 74 extending laterally therefrom cam arm 70 is integrally molded from the middle to the distal end of bottom 44 of cam 40 cam arm 70 further includes lip 76 integrally attached to its distal end lip 76 plays an important role in securing and releasing blunt assembly 26 so that it may cover and uncover the needle tip of needle 22 first cam lock 72 which is generally rectangular is integrally attached to first wall 71 of cam arm 70 extending laterally therefrom second cam lock 74 which is generally rectangular is integrally attached to second wall 73 of cam arm 70 extending laterally therefrom first cam lock 72 and second cam lock 74 which play an important role in securing blunt 130 beyond the tip of needle 22 when first button 80 and second button 100 are released will be described in more detail later at the proximal end of cam 40 is an aperture therethrough the aperture in cam 40.