| 20100076378 | Safety Medical Syringe with Retractable Needle and Including a Plunger that is Received within a Barrel - A syringe includes a hollow barrel including a proximal end with an opening and a distal end configured to receive a syringe needle, where a portion between the proximal and distal ends of the barrel defines a fluid cavity to receive and expel fluid from the barrel distal end, a plunger extending into the proximal end opening of the barrel and axially movable within the barrel toward and away from the barrel distal end, where the plunger includes a proximal end and a distal end that extends within the barrel and is movable toward and away from the barrel distal end to facilitate drawing fluid into and forcing fluid from the fluid cavity within the barrel. The plunger further includes a thumb pad with a flange that extends transversely from a longitudinal orientation of the plunger and includes a dimension that is greater than the proximal end opening of the barrel, and at least a portion of the flange is resiliently flexible and bendable to permit insertion of the flange within the plunger so as to lock the plunger within the barrel after a single use of the syringe. | 03-25-2010 |
