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Caution: Do not strike the centrifugal blood pump with instruments. Shock may cause damage to the device, which may cause
device malfunction.
4. With the outlet tubing clamped, turn on the Medtronic controller power.
5. Connect the flow probe to the circuit tubing according to the appropriate compatible system operator's manual. If using a
Medtronic controller, zero the flow probe according to the appropriate Medtronic controller operator's manual.
6. With the outlet tubing still clamped, turn the rpm knob of the Medtronic controller to the desired level to adequately prime and
debubble the circuit. Observe the pump for leakage or other anomalies.
Warning: Do not operate the centrifugal blood pump for more than 30 seconds in the absence of flow. The temperature within the
pump could rise, and increased cellular damage may result.
7. Set the rpm knob to zero and recheck the integrity of the centrifugal blood pump.
Warning: If leaks are found, remove the centrifugal blood pump and replace with a new, sterile pump. If other anomalies are found,
refer to Chapter 9. Repeat Step 1 to Step 7 to prime.
8. If no anomalies are noted, continue priming the circuit.
9. Verify all connections and the integrity and flow of the circuit before use.
Warning: Do not operate the centrifugal blood pump with its inlet tubing clamped, as negative pressure would be generated in
the pump and air bubbles may be formed in the blood.
8.8 Affinity CP centrifugal blood pump checklist
Follow the protocol specified by your clinical team. Information from this blood pump bypass checklist can be used to revise, upgrade,
or expand existing checklists appropriately.
1. Equipment assembly
• Mount external drive motor model 560A or drive unit from a compatible system.
• Check that all electrical connections are secure.
• Test control module power and display.
• Check date and integrity of sterile blood pump (and disposable probe if applicable) package(s).
• If using the adapter, check the Use-by Date on the device label.
• Check that flow transducer/sensor/disposable probe are sized properly.
• Assemble perfusion circuit in a sterile manner.
• Allow sufficient tubing length for standby drive unit or handcrank.
• Connect flow transducer/sensor/disposable probe to circuit in correct location and flow direction.
2. Prime pump and circuit
• Check the circuit to ensure that no kinks or occlusions are present.
• CO
flush pump and circuit, if indicated; turn off CO
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• Gravity prime and debubble pump and perfusion circuit.
• Check pump for leaks, irregular motion, and noise.
• Check circuit for visible air.
• Check that all tubing connections are secure.
• Clamp pump outlet tubing completely.
• Clamp venous return tubing completely.
3. Operating parameters
Perform the following, per the appropriate compatible system operator's manual:
• Calibrate transducers/sensors according to the manufacturer's instructions.
• Set and verify low/high flow alarms and other available safety systems.
4. Emergency backup equipment
Ensure that the following equipment is available:
• Backup power
• Appropriate handcrank and drive unit from a compatible system
• Spare Affinity CP centrifugal blood pump and disposable probe
• If using the adapter, have a spare Affinity CP adapter available
• Appropriate controller from a compatible system
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