Medicine pump

Abstract

Low power peristaltic medicine pump and filter for infusion of medicinal solutions. The pump includes a pump housing, a low durometer PVC pump tube; fit within an interior circular groove of the pump housing, tube slots, a rotor cavity within the walls of the pump housing bearing hole and recessed motor mounting body holes. A sealed geared motor in a motor recess in the bottom of the pump housing and a shaft and drive pin extend from the motor through a bearing hole in the pump housing to drive a pump rotor. Rotor mounted plungers offset at an angle to the radii of the pump rotor body to minimize internal friction for low power consumption and are spring loaded outwardly to depress plunger mounted rollers against the PVC pump tubing for subsequent peristalic pumping action through an inset PVC pump tube. A knurled knob loading tool positions on the pump rotor. Feed fingers attached to a circular plate on the loading tool facilitate loading of the PVC pump tube into the inner groove of the pump housing. A low durometer PVC pump tube attaches to a medical solution filter system which includes internal filter members, ribbed filter supports, hydrophobic filters, air elimination ports, a filter outlet port, a medicine bag puncturing tip, filter alignment pins, a medical solution outlet and peristaltic pump tube connection and support orifices. The peristalic pump and the filter align and are spaced on an alignment bracket on an electromechanical housing. A spring pressurized IV medicine bag in a detachable housing supplies infusate to the filter and the peristalic pump.