Position-independent fluid trap

Details Position-independent fluid trap Position-independent fluid trap

1995-10-12

1998-11-03

Lewis, Aaron J.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

12820512, A61M 100

Patent

active

058301852

ABSTRACT:
A position-independent fluid trap for separating at least a portion of a first fluid of a first density entrained within a flow stream of a second fluid of a second density flowing through a fluid circuit. The trap is connectable within the fluid circuit to a first length of tubing defining an inlet line and to a second length of tubing defining an outlet line, and includes a housing enclosing an interior chamber having a geometric extent of a given volumetric capacity. An inlet port is provided to open in fluid communication with the interior chamber and to be couplable to the inlet line. An outlet tube is provided to extend from a proximal end couplable to the outlet line to a distal end disposed within the housing and opening in fluid communication with the interior chamber. Within the interior chamber, the first and second fluid are separated at an interface into a first and second fluid component according to the relative densities thereof. The outlet line distal end is disposed within the chamber effective to define with respect to the interface a predetermined fill volume of the second fluid maintaining the outlet line distal end within the second fluid component. This fill volume is substantially independent of the orientation of the trap within the fluid circuit.

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