Kangaroo™ Connect Enteral Feeding Pump | 39
Table of Contents
Appendix C - Fluid/Occlusion Detection Overview
The Kangaroo Connect Enteral Feeding Pump uses dual
ultrasonic sensors for fluid detection. One sensor is
positioned on the upstream side of the rotor and the other
sensor is positioned on the downstream side of the rotor.
The dual sensor system also provides the capability to
distinguish between upstream occlusions, downstream
occlusions and bag empty conditions. When an occlusion
occurs in the tubing on the fluid supply side of the pump
rotor, fluid will be evacuated from the upstream silicone
tubing but not from the downstream tubing. In this
scenario, the pump will continually detect fluid at the
downstream sensor, but detect no fluid at the upstream
sensor. As a result, a Supply Tube Blocked error will be
generated. When the fluid supply is exhausted (bag
empties), fluid will drain out of the upstream tubing then
out of the downstream tubing. In this scenario, the pump
will initially detect fluid on both sensors, then observe a
period where there is fluid at the downstream sensor but
not at the upstream sensor, and then finally observe no
fluid at either sensor. When this occurs, a Bag Empty error
will be generated. When an occlusion occurs in the tubing
on the patient side of the pump rotor, the silicone tubing
at the sensor will expand improving the conductivity of the
signal through the fluid. In this scenario, the pump will see
a significant rise in the receive signal and issue a Patient
Tube Blocked error.
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