Patent ID: 8394057

Claim:
A safety syringe having a barrel having a proximal end; a distal end; a spout being formed axially on and protruding from the distal end and having an outer diameter; an inner diameter; and a tapered surface formed on a top of the spout; and two finger rests being formed on and protruding oppositely from the proximal end; a plunger being mounted in the barrel and having a distal end; and a mounting protrusion being centrally formed axially on the distal end of the plunger and having an engaging hole defined in the mounting protrusion and having an inner surface; a cross section; and an axis; an outer needle hub being mounted on the spout of the barrel and having an inner surface; a connecting end; a mounting end; a hub hole being formed through the connecting end of the outer needle hub; and a mounting chamber being formed in the mounting end of the outer needle hub and communicating with the hub hole; an inner needle hub being mounted in the mounting chamber of the outer needle hub and having an outside end; an inside end; a needle hole defined through the inner needle hub; a shoulder formed on and protruding radially from the inner needle hub adjacent to the inside end, larger than and abutting the hub hole of the outer needle hub; and at least two wing sections formed on and protruding from the shoulder of the inner needle hub, each wing section being resilient and having a collar formed on and protruding at an angle away from the shoulder of the inner needle hub, the collar having an inner slope formed on an end opposite to the shoulder and protruding out from the wing section; and an arm formed on, protruding from and with the collar to form a rim there between; and a needle being hollow and mounted in the needle hole of the inner needle hub; wherein a width of the tapered surface is wider than a width of the inner slope.