Patent ID: 9132229
Filing Date: 2015-09-15
Classification: A61F,A61M,F04D

Abstract:
1. A method of priming an infusion system, comprising: providing a system having an infusion chamber provided with an infusion liquid, the infusion chamber connected to an infusion conduit having a first valve, the system having a cross conduit intersecting the infusion conduit at a location between the infusion chamber and the first valve, the cross conduit coupled to an aspiration chamber, the cross conduit having a second valve, the aspiration chamber coupled to a vacuum source; filling the infusion conduit with a first volume of the infusion liquid, the infusion conduit having an infusion port exposed to a non-liquid environment having a first pressure; closing the first and second valves to isolate the infusion chamber; operating the vacuum source to create a second pressure in the aspiration chamber that is lower than the first pressure; opening the first valve and the second valve to produce a second volume of the infusion liquid in the infusion conduit to flow over the first valve towards the infusion chamber; and wherein the second volume of the infusion liquid is less than or equal to the first volume of the infusion liquid.