INFUSION PUMP WITH DRIVE UNIT AND LOCKING MECHANISM FOR INFUSION SYRINGE PISTON DRIVE HEAD Russian patent published in 2017 - IPC A61M5/145 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medical equipment. The drive unit of the infusion syringe piston drive head intended to move the infusion syringe piston contains a propelling device including a propulsive carriage to promote the spindle and the propelling spindle multiple nut, comprising two radially movable nut shells, as well as a locking device adapted to run automatically by a control sensor to block the supply of drive head movement. The propulsive carriage can be driven on the propelling spindle by means of the multiple nut of the propelling spindle. The drive head is on the propulsive carriage. The locking device adapted to run automatically by means of the control sensor includes a propelling spindle multiple nut to block the supply motion of the drive head on the propelling spindle. The infusion pump and the infusion pump control method are disclosed.

EFFECT: inventions prevent accidental bolus injection during replacement of the infusion syringe.

16 cl, 6 dwg