MAQUET RF-32 Rotaflow Centrifugal Pump

Condition: New
Part #: RF-32

$450.00

MAQUET RF-32 Rotaflow Centrifugal Pump

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SKU: RF-32 Categories: ,
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Description

The MAQUET RF-32 Rotaflow represents the gold standard in centrifugal blood pump technology, specifically engineered for high-performance extracorporeal circulation. As a core component of the Getinge (formerly Maquet) Rotaflow system, the RF-32 is designed to meet the rigorous demands of both cardiac surgery and long-term Extracorporeal Membrane Oxygenation (ECMO) therapy.

By prioritizing a “low-prime” philosophy, the RF-32 minimizes hemodilution while maintaining the power to deliver flow rates up to 10 L/min. Its design focuses on the two most critical factors in blood management: safety and biocompatibility.

Core Technology and Design

The RF-32’s superiority lies in its bearingless-style magnetic coupling and advanced surface chemistry. Unlike traditional roller pumps that “crush” blood tubing to create flow, the Rotaflow uses a 50 mm centrifugal rotor.

  • Magnetic Drive: The rotor is driven by magnetic forces, eliminating the need for mechanical seals or shafts that generate heat and friction.

  • Bioline Coating: The internal surfaces are treated with Bioline, a specialized biocompatible coating that mimics the natural endothelium. This reduces platelet activation and allows for safe, continuous use for up to 14 days.

  • Integrated Intelligence: Uniquely, the RF-32 incorporates built-in ultrasonic flow sensing and bubble detection, allowing the Rotaflow console to monitor hemodynamic data without the need for external, bulky probes on the tubing.

Mechanism of Action

The RF-32 operates on the principle of centrifugal force. As the 50 mm magnetic rotor spins, it creates a pressure gradient that draws blood through the inlet and accelerates it toward the 3/8″ outlet.

Because the rotor “floats” within the magnetic field, there is no mechanical friction against the blood cells. This design creates a non-occlusive flow, meaning that if an obstruction occurs downstream, the pump will not build up dangerous excessive pressure, a vital safety feature in neonatal and adult perfusion.

Clinical Applications

The MAQUET RF-32 is a versatile workhorse in critical care environments, primarily utilized in:

  • Cardiopulmonary Bypass (CPB): Providing stable, pulsatile-mimicking flow during open-heart surgeries.

  • Veno-Venous (VV) ECMO: Supporting patients with severe respiratory failure by providing extracorporeal gas exchange.

  • Veno-Arterial (VA) ECMO: Providing both respiratory and circulatory support for patients in cardiogenic shock.

  • Portable Transport: Its compact size and swivel-joint bracket make it the preferred choice for intra-hospital and inter-hospital ECMO transport.

Key Advantages

  • Reduced Hemodilution: The ultra-low 32 ml priming volume is significantly lower than conventional centrifugal pumps, which often exceed 50 ml. This reduces the need for blood transfusions.

  • Gentle Blood Handling: Magnetic coupling ensures minimal hemolysis (red blood cell damage), which is critical for preventing renal complications during long-term support.

  • Operational Flexibility: The swivel-joint bracket allows the pump to be positioned at various angles, optimizing the circuit layout in crowded Operating Rooms (OR) or Intensive Care Units (ICU).

  • Probe-Free Monitoring: By integrating flow and bubble sensors into the pump housing, the system reduces “clutter” around the patient and simplifies the setup process for perfusionists.

Technical Specifications

Feature Specification
Priming Volume 32 ml
Maximum Flow Rate 10 L/min
Connector Size 3/8″ (Inlet and Outlet)
Rotor Diameter 50 mm
Coupling Type Magnetic (Seal-less)
Surface Coating Bioline Biocompatible Coating
Approved Duration Up to 14 days (Continuous ECMO)
Sensor Integration Ultrasonic Flow & Bubble Detection

Frequently Asked Questions

What are the primary benefits of the 32 ml priming volume in the RF-32?

The 32 ml priming volume is one of the lowest in the industry for a 10 L/min pump. This significantly reduces the volume of saline or donor blood needed to “prime” the circuit, thereby minimizing hemodilution. This is particularly beneficial for smaller patients or those with low hemoglobin levels.

How does the Bioline coating extend the usage time of the pump?

Bioline is a heparin-based biocompatible coating that covers all blood-contacting surfaces. It reduces the body’s inflammatory response and prevents the adhesion of platelets and proteins. This allows the RF-32 to be used safely for up to 14 days in ECMO applications without significant clot formation or degradation.

Can the RF-32 be used with consoles other than the Getinge Rotaflow?

The RF-32 is specifically engineered to integrate with the Rotaflow and Rotaflow II consoles. The integrated ultrasonic sensors and magnetic drive system are proprietary to the Rotaflow ecosystem, ensuring seamless data communication for flow rates and bubble detection that external systems cannot replicate without additional hardware.

What makes magnetic coupling safer than traditional pump drives?

Magnetic coupling eliminates the mechanical shaft and seals found in older pumps. Mechanical seals generate heat and friction, which can cause blood to clot or cells to rupture (hemolysis). The “floating” magnetic design of the RF-32 ensures cool, low-friction operation, preserving the integrity of the blood.

Does the RF-32 require external flow probes on the tubing?

No, the RF-32 features built-in ultrasonic flow sensing. This “probe-free” design eliminates the need for external sensors to be clamped onto the 3/8″ tubing. It simplifies the circuit, reduces the risk of sensor displacement, and ensures more accurate, real-time hemodynamic monitoring directly from the pump head.

Is the MAQUET RF-32 suitable for pediatric or only adult patients?

While the RF-32 can deliver up to 10 L/min (adult capacity), its exceptionally low priming volume of 32 ml makes it highly effective for pediatric and smaller adult patients. It provides the flexibility to support a wide range of patient sizes while maintaining gentle blood handling.

Listing Terms & Conditions

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We carry all products of this brand in the listing, please let me know if you have any other inquires which is not listed in our store.

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