CPC A61M 5/31501 (2013.01) [A61M 5/31505 (2013.01); A61M 5/31515 (2013.01); A61M 5/31548 (2013.01); A61M 5/31578 (2013.01); A61M 5/31595 (2013.01)] | 7 Claims |
1. A method of delivering a dosage of liquid from a syringe, the method comprising:
sliding a plunger rod stop laterally onto a proximal flange of a plunger rod of the syringe such that the proximal flange slides into a horizontal slot of the plunger rod stop and the plunger rod slides into a vertical recess of the plunger rod stop, the horizontal slot and the vertical recess forming a T-shaped receptacle formed into a cylindrical body of the plunger rod stop so as to accept the proximal flange and the plunger rod laterally;
depressing the plunger rod axially a first distance into a barrel of the syringe until a first standoff contacts a first fixed element of the syringe, the first standoff extending laterally from the cylindrical body and having a tapered portion;
rotating the plunger rod stop such that the first standoff is out of alignment with the first fixed element; and
depressing the plunger rod axially a second distance into the barrel of the syringe.
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