Patent ID: 8647305
Filing Date: 2014-02-11
Classification: A61M

Abstract:
1. A syringe drive device to hold and drive a syringe, the syringe including a cylinder and a piston inserted in the cylinder, the cylinder having a solution supply port at an eccentric position, the syringe drive device comprising: a cylinder holder to hold the cylinder such that the cylinder can rotate around an axis of the cylinder; a rotation aid to rotate the cylinder held in the cylinder holder by a predetermined angle around the axis of the cylinder; and a piston driver to drive the piston in an axial direction thereof with respect to the cylinder held in the cylinder holder; wherein the cylinder holder includes a hold-down bar in an upper part thereof; wherein at least one roller is located in a recess formed in the cylinder holder; and wherein the at least one roller is located on a bottom surface of the hold-down bar facing the cylinder holder.