MEDTRONIC 560A AFFINITY™ CP centrifugal pump motor

Condition: New
Part #: 560A

$9,800.00

MEDTRONIC 560A AFFINITY™ CP centrifugal pump motor for bio 560 system

SKU: 560A Categories: , , ,
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Description

The Medtronic 560A Affinity™ CP is a high-performance centrifugal pump motor engineered to drive advanced cardiopulmonary bypass (CPB) and Extra-Corporeal Membrane Oxygenation (ECMO) systems. Designed for the high-stakes environment of the cardiac OR and ICU, the 560A provides the critical mechanical power necessary to maintain systemic perfusion with unmatched reliability.

By utilizing a brushless DC motor and magnetic coupling, the 560A eliminates the need for direct mechanical drive shafts, ensuring a closed, sterile system. When interfaced with the Bio-Console™ 560 speed controller, it offers perfusionists and clinicians a responsive, low-trauma alternative to traditional roller pumps, making it a cornerstone technology in modern life-support circuits.


Core Technology and Integration

The 560A is built on a foundation of safety and seamless integration. Its compact footprint allows for versatile pole-mounting, keeping the surgical field organized while maintaining proximity to the patient.

  • Magnetic Coupling: The motor drives the Affinity™ CP pump head through a non-contact magnetic interface. This design prevents heat transfer to the blood and maintains the integrity of the sterile barrier.

  • Non-Arcing Design: Specifically engineered for the oxygen-rich environment of the operating room, the motor’s non-arcing construction minimizes fire risks.

  • System Synergy: The motor is part of a holistic ecosystem, designed to work alongside flow transducers, ultrasonic level sensors, and emergency auto-clamp mechanisms to ensure patient safety during every second of bypass.


Mechanism of Action: Centrifugal Flow Dynamics

Unlike positive displacement roller pumps that “crush” tubing to move blood, the 560A utilizes centrifugal force. As the motor rotates the pump’s internal impeller at speeds up to 4,500 RPM, it creates a pressure gradient that pulls blood into the center and accelerates it outward.

This method is inherently pressure-sensitive. If resistance in the arterial line increases (due to a kink or clamped line), the flow naturally decreases rather than building up dangerous excessive pressure. This “afterload sensitivity” provides an additional layer of safety for the patient’s vascular system.


Applications in Critical Care

The Medtronic 560A is a versatile workhorse across several life-saving clinical applications:

  • Cardiopulmonary Bypass (CPB): Providing full circulatory support during open-heart surgeries, including CABG and valve replacements.

  • Extracorporeal Membrane Oxygenation (ECMO): Supporting patients with severe cardiac or respiratory failure for extended periods (days to weeks).

  • Ventricular Assist: Assisting a failing heart in the transition to recovery or transplant.

  • Perfusion Circuits: Integrated into customized circuits for pediatrics or adults requiring specialized flow rates.


Key Advantages: Why the 560A Excels

Feature Medtronic 560A Affinity CP Standard Roller Pump
Flow Dynamics Kinetic/Centrifugal Positive Displacement
Hemolysis Risk Low: Minimal mechanical trauma Higher: Tubing compression causes cell damage
Flow Range Up to 9.99 L/min Typically 5–7 L/min
RPM Control Precise (0–4500 RPM) Fixed Gear Ratios
Safety Afterload sensitive (won’t over-pressurize) Risk of line rupture if occluded
  • Reduced Blood Trauma: The refined impeller design and Cortiva™ BioActive Surface options significantly reduce hemolysis and SIRS (Systemic Inflammatory Response Syndrome).

  • Operational Ease: Features a single-knob RPM adjustment and high-visibility LED displays.

  • Emergency Readiness: Fully compatible with emergency handcranks and features internal battery backup for uninterrupted support during power failures.


Treatment Process and Operation

While the 560A is a component of a larger system, its operational workflow follows a standardized clinical protocol:

  1. System Setup: The motor is mounted to the Bio-Console 560 and the sterile Affinity CP pump head is snapped into the magnetic drive.

  2. Priming: The circuit is primed with crystalloid or blood products to remove all air.

  3. Initiation: Perfusion begins with slow RPM increments, monitored via the Bio-Console interface.

  4. Maintenance: The operator adjusts flow (L/min) based on patient BSA (Body Surface Area) and metabolic demands, using the precision adjustment knob.

  5. Weaning: As the patient’s heart or lungs recover, RPM is gradually reduced until the patient can be safely decannulated.


Technical Specifications

Parameter Specification
Motor Type Brushless DC (Magnetic Drive)
Maximum Flow Rate 9.99 Liters Per Minute (L/min)
Operating Speed Range 0 – 4500 RPM
Power Requirements 100-240V AC (Auto-sensing)
Compatibility Medtronic Bio-Console™ 560, Affinity™ CP Pump Heads
Mounting Standard IV Pole / Console Mount
Safety Features Battery Backup, Handcrank Compatible, Non-arcing

Frequently Asked Questions

What is the primary benefit of using a centrifugal pump over a roller pump?

The Medtronic 560A centrifugal pump offers significantly lower hemolysis (blood cell damage) compared to roller pumps. Because it uses kinetic energy rather than mechanical occlusion of tubing, it is more biocompatible for long-term support like ECMO and safer against accidental line occlusions due to its pressure-sensitive flow dynamics.

Can the Medtronic 560A be used during a power outage?

Yes, the system is designed for high-stakes reliability. It interfaces with the Bio-Console 560, which includes internal battery backup to maintain pump speed during power transitions. Additionally, the 560A motor is fully compatible with an emergency handcrank, allowing for manual perfusion if all power sources fail.

What is the Cortiva BioActive Surface, and how does it help?

The Cortiva™ BioActive Surface is an optional coating for the Affinity CP pump heads driven by the 560A. It uses heparin-based technology to improve the biocompatibility of the blood-contacting surfaces. This reduces the inflammatory response and the risk of clot formation within the pump during extracorporeal circulation.

How is the pump speed controlled during surgery?

Clinicians control the 560A through the Bio-Console 560 speed controller. The interface features an intuitive single-knob adjustment for RPM, allowing for rapid and precise changes in blood flow. Real-time data is displayed on bright LED screens to ensure the perfusionist can monitor flow and speed simultaneously.

What are the flow limitations of the 560A motor?

The 560A is a high-capacity motor capable of delivering blood flow rates up to 9.99 L/min. This wide range makes it suitable for a diverse patient population, from small adults to larger patients requiring high-flow cardiac output, all while maintaining a speed range of 0 to 4500 RPM.

Does this motor require special maintenance for sterile environments?

The 560A motor features a compact, non-arcing, and sealed design that is ideal for the sterile conditions of an operating room. While the motor itself is not disposable, it is designed to be easily cleaned and wiped down with hospital-grade disinfectants between cases, supporting rigorous infection control protocols.

Listing Terms & Conditions

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