Herein in conjunction with a variety of syringe safe mechanisms, for protecting user from accidental needle sticks. In certain embodiments, syringe includes telescopic bracket, and the cylinder that can be further retracted into syringe passes through engagement pistons. Framework construction has the needle-shaped ice needle area of bed of any number of difference at reception. In certain other embodiments, which is spring-loaded, and to be detached from bracket from injector cartridge when plunger, spring automatic needle-draw back enters cylinder. Still in other some embodiments, and the spring-loaded needle of pipkrake and syringe are used. Needle retraction plunger over the barrel of working as activates certain mechanism to be merged into hub, thus release needle.