Kangaroo™ Connect Enteral Feeding Pump | 38
Table of Contents
Appendix B - Explanation of Alarms
The purpose of this appendix is to provide an overview of how
the Kangaroo connect alarm system works and what priorities are
assigned to each alarm.
Overview
The Kangaroo connect pump has alarms that are broken into three
different priorities: High Priority (Red Blinking Indicator Light),
Medium Priority (Yellow Blinking Indicator Light), and Low Priority
(Solid Yellow Indicator Light). These alarms occur based upon
feedback from different sensor inputs from the pump. Key inputs for
the alarms include the following:
• Motor Current
• Battery Voltage
• Upstream Ultrasonic Sensor Voltage
• Downstream Ultrasonic Sensor Voltage
• Magnetic Sensor Voltage
• Microprocessor Timer
The breakdown for each alarm is as follows:
• Pump Inactive Alarm
Sensor Input: Microprocessor Timer
The pump uses the microprocessor timer to know when 10 minutes
of inactivity has elapsed.
• Low Battery Alarm
Sensor Input: Battery Voltage
The pump determines if the battery reaches a set low voltage level.
When this voltage level is reached, the alarm will activate.
• Feed Bag Empty Alarm
Sensor Input: Upstream Ultrasonic Sensor Voltage; Downstream
Ultrasonic Sensor Voltage
The pump determines if there is a bag empty alarm if the
downstream and upstream sensor voltage drops below a set
minimum voltage level.
• Rotor Stuck Alarm
Sensor Input: Motor Current
The pump determines there is a Rotor Stuck alarm when the motor
current reaches a certain maximum level.
• Patient Tube Blocked Alarm
Sensor Input: Downstream Ultrasonic Sensor Voltage
The pump will alarm for Patient Tube Blocked based upon voltage
value levels it receives from the Downstream Ultrasonic Sensor.
• Supply Tube Blocked Alarm
Sensor Input: Upstream Ultrasonic Sensor Voltage; Downstream
Ultrasonic Sensor Voltage
The pump determines Supply Tube Blocked based upon the voltage
values it receives from each sensor. The Upstream Ultrasonic Sensor
Voltage will reach a set minimum voltage level and the Downstream
Ultrasonic Sensor Voltage will reach a maximum voltage level at the
same time.
• Cassette Dislodged Alarm
Sensor Input: Magnetic Sensor
The pump will alarm for Cassette Dislodged when it a low voltage
level is received from the magnetic sensor.
• Cassette Error Alarm
Sensor Input: Motor Current
The pump will alarm for Cassette Error when motor current variation
is below a set minimum level while the pump is running.
• Dead Battery Error Alarm
Sensor Input: Battery Voltage
The pump will alarm when the battery voltage reaches a set
minimum level .
Priority Handling of Alarms
In all cases, High Priority alarms are the most important and override
any other alarm conditions. A medium or low priority alarm will never
disable a High Priority alarm. Medium Priority alarms all have equal
weighting. There should never be a situation when medium priority
alarms are occurring at the same time, so there is no need to assign a
weighting within the medium alarm priority.
The pump never changes the priority of alarms based on situational
or environmental conditions. Alarm priority of the pump remains
fixed. Additionally, the pump does not change Alarm Signal
Generation Delay or Alarm Condition delay as a result of situational
or environmental conditions. Finally, the pump does not change the
characteristic of the generated alarm signals. Below is the listing of
alarm priorities for the pump:
High Priority
0: System Alarm Condition
1: Dead Battery Alarm Condition
2: All Other Critical Alarm Conditions
Medium Priority
3. All Error Alarm Conditions
Low Priority
4. Low Battery Warning Alarm Condition
5: Other Warning Alarm Conditions
In this case, the number 0 represents the Highest Priority.
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