Patent ID: 7150724
Filing Date: 2006-12-19
Classification: A61M,Y10T

Abstract:
1. A syringe plunger driver system for engaging syringe plungers of different sizes, each plunger having a plunger piston, a plunger flange having an outer diameter, and a plunger stem interconnecting the piston with the flange, and each plunger forming a part of a syringe, each syringe having a barrel in which the plunger moves, each plunger flange having an inner side facing the syringe barrel and an outer side, the syringe plunger driver system having a plunger driver adapted to move the syringe plunger into the syringe barrel in an operation mode, the syringe plunger driver system comprising: a pushing surface located on the plunger driver adapted to press against the outer side of the plunger flange to move the flange toward the barrel during the operation mode wherein the pushing surface has a size that is large enough to engage plunger flanges ranging from relatively small to relatively large outer diameters; a plunger retainer located on the plunger driver adapted to capture adjacent the pushing surface of the plunger driver syringe plunger flanges ranging from relatively small to relatively large outer diameters, the plunger retainer comprising: