| abstract |
A delay mechanism for an automatic injection apparatus for injecting the contents of a syringe and retraction of the syringe needle, the apparatus including a shuttle, a follower, a locking member, a damping compound, and a driver and a driver biasing element, wherein the shuttle for a needled syringe includes a first latching element, the follower includes a second latching element and a cammable surface. The locking member is movable from a locking position to a release position, the damping compound is between the follower and a supporting surface, the driver is rotatably fixed relative to the shuttle and includes a camming surface. The driver biasing element is for forcing the driver from a first position to a second position when the locking member moves to the release position. |