Patent ID: 9011769
Filing Date: 2015-04-21
Classification: A61M

Abstract:
1. A dual chamber blood reservoir comprising an activated section and a non-activated section, the non-activated section including: an elongate filter having an upper region and a bottom surface; a defoamer disposed about the upper region of the elongate filter; a purgers funnel extending downwardly through the defoamer and into the elongate filter, the purgers funnel having a conical upper portion, a cylindrical lower portion and an intervening central portion; a venous inlet tube extending downwardly through the cylindrical lower portion of the purgers funnel to a position proximate the bottom surface of the elongate filter, the venous inlet tube including an exterior surface, a space formed between the venous inlet tube and the cylindrical lower portion of the purgers funnel such that blood entering the purgers funnel can pass between the exterior surface of the venous inlet tube and an inner surface of the cylindrical lower portion of the purgers funnel and can flow down the exterior surface of the venous inlet tube; and a vent inlet tube extending downwardly through an aperture formed within the central portion of the purgers funnel, the aperture passing through a side wall of the purgers funnel in the central portion, wherein the vent inlet tube extends within the elongate filter but outside of the cylindrical lower portion of the purgers funnel to a position proximate the bottom surface of the elongate filter; and a releasable barrier between the activated section and the non-activated section that can be released to permit blood within the activated section to enter the non-activated section in a situation requiring additional blood.