Infusion pump inspection machine

Abstract

An inspection machine checks and inspects whether an infusion pump is accurately operated and does not require maintenance in a closed system without drainage. This inspection machine includes a syringe and a plunger and moves the plunger backward when an infusion flows into the syringe through a communication hole by the driving of an infusion pump to measure a flow rate by the backward movement amount. An outer peripheral surface of the plunger has an annular recess and a seal ring is fitted thereto. The seal ring is expanded by receiving a liquid pressure of the infusion to be sealed and the plunger is coaxially centered on the syringe. The flow rate of the infusion is accurately reflected to the plunger movement amount. Further, since the infusion is stored in the syringe and does not drip, drainage equipment is not required and an inspection operation can be performed anywhere.