Patent ID: 8696626
Filing Date: 2014-04-15
Classification: A61M,B01D

Abstract:
1. A device for removal of gas from a liquid being delivered to a patient through a medical fluid infusion line, the device comprising: a) a housing having an internal surface, an internal degassing chamber in the housing, a vacuum chamber in the housing, an inlet port for receiving liquid from the medical fluid infusion line for flow into the internal degassing chamber, an outlet port for discharging the liquid from the degassing chamber, and a vent in communication with the degassing chamber for passing gas from the degassing chamber to the vacuum chamber; b) a plurality of hollow fiber membranes in the internal degassing chamber for removing gas from the liquid, wherein removed gas is in gas flow communication with the vent; and c) a mechanical source of vacuum in the housing containing the hollow fiber membranes, the mechanical source of vacuum being movably mounted in the vacuum chamber and entirely in the housing and in gas flow communication with the vent for withdrawing gas from the internal degassing chamber to the vacuum chamber so that the device is self-contained and adapted for use without connection to an external source of vacuum, wherein the mechanical source of the vacuum comprises a piston having a length about equal to the distance between the inlet port and the outlet port, the piston being biased away from the vent by a spring.