Patent ID: 7179243
Filing Date: 2007-02-20
Classification: A61M

Abstract:
1. A syringe comprising: a hollow barrel having an annular flange extending inward from an inner periphery thereof and located near a first end of the hollow barrel; a snapping device detachably secured in the first end of the hollow barrel and having a hollow stub which extends through the first end of the hollow barrel and is adapted to be connected with a needle hub, two snappers connected to the hollow stub and a hook extending from a free end of each of the two snappers, the snapping device having a tubular portion and a connection portion connected between the hollow stub and the tubular portion, a passage defined between the hook and the connecting portion, the annular flange located in the passage and the hooks engaged with the annular flange, the snapping device having two actuators extending therefrom with the tubular portion and respectively connected to the two snappers, a first connector connected to a distal end of the tubular portion and having a plurality of claws extending radially outward therefrom, and a plunger movably received in the hollow barrel and having a second connector secured on one end of the plunger, an annular groove defined in an outer periphery of the second connector and a tapered portion formed on distal end of the second connector, a diameter of the tapered portion gradually reduced relative to the snapping device, the actuators being expanded outward when the second connector is inserted between the two actuators and the two snappers move inward to disengage from the annular flange.