Patent ID: 8753315

Claim:
A fully manually powered infusion device that provides both basal and bolus delivery of a liquid medicament to a patient, comprising: a main reservoir that supplies the liquid medicament; an outlet port that delivers the liquid medicament to a patient; a basal dispenser that delivers a substantially constant flow of the liquid medicament to the outlet port; a manually actuated bolus pump comprising a piston pump that delivers a bolus dose of the liquid medicament from the main reservoir to the outlet when actuated; a basal medicament supply comprising a piston pump that delivers a volume of the liquid medicament from the main reservoir to the basal dispenser consonant with each actuation of the bolus pump; wherein the bolus piston pump and the basal medicament supply piston pump each have a return stroke; a common actuator that manually actuates the bolus piston pump and the basal medicament supply piston pump together; wherein the bolus piston pump and the basal medicament supply piston pump are recharged with the liquid medicament from the main reservoir during the return strokes.