MEDTRONIC AP40AST ADAPTER AFFINITY CP WW

Condition: New
Part #: AP40AST

$3,200.00

MEDTRONIC AP40AST ADAPTER AFFINITY CP WW

SKU: AP40AST Categories: ,
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Description

The Medtronic AP40AST Adapter is a critical reusable interface designed to integrate the Affinity CP Centrifugal Blood Pump with non-Medtronic drive systems. In high-stakes cardiac surgery and cardiopulmonary bypass (CPB) environments, equipment interoperability is essential. The AP40AST allows surgical teams to utilize the superior low-hemolysis performance of Medtronic’s centrifugal technology while maintaining their existing console infrastructure, such as Stöckert/Sorin or Sarns/Terumo systems.


Core Technology: Cross-Platform Interoperability

The AP40AST serves as a mechanical and magnetic bridge. Centrifugal pumps rely on magnetic coupling to spin the internal impeller without a physical shaft, which is the key to their low-impact blood handling.

The adapter is engineered to perfectly align the magnetic flux of third-party drive motors with the Affinity CP (AP40) cone. This ensures that the 1–7 L/min flow capacity is maintained with zero slippage or heat generation, preserving the hemodynamic profile required for extracorporeal circulation.


Mechanism of Action

The adapter functions through a precise “plug-and-play” mechanical coupling:

  1. Drive Alignment: The adapter is mounted onto the host drive system (e.g., a Stöckert centrifugal motor).

  2. Pump Seating: The Affinity CP pump is placed into the adapter.

  3. Magnetic Coupling: Once seated, the internal magnets of the drive motor and the pump impeller are brought into the exact proximity required for synchronous rotation.

  4. Energy Transfer: As the drive motor spins, the adapter ensures the torque is transferred efficiently to the pump’s impeller, creating the centrifugal force necessary for blood flow.


Applications and Clinical Uses

The AP40AST is primarily utilized in the Cardiac Operating Room and Intensive Care Units for:

  • Cardiopulmonary Bypass (CPB): Supporting full circulatory arrest and oxygenation during open-heart surgery.

  • Extracorporeal Membrane Oxygenation (ECMO): Providing long-term respiratory or circulatory support when integrated with compatible consoles.

  • Temporary Circulatory Support: Assisting the heart in cases of post-cardiotomy shock or bridge-to-recovery scenarios.


Key Advantages

  • Expanded Compatibility: Supports a “mixed” fleet of equipment, allowing hospitals to use Medtronic pumps on Sorin, LivaNova, or Terumo consoles.

  • No Host Modifications: The adapter is designed to fit existing drive systems without requiring hardware or software changes to the expensive console units.

  • Low Hemolysis Maintenance: Precision manufacturing ensures that the pump’s low-shear design is not compromised by vibration or misalignment.

  • Cost-Efficiency: As a reusable, non-sterile component, it offers a high return on investment by reducing the need to purchase brand-specific consoles for every pump.


Technical Specifications

Feature Specification
Model Number AP40AST
Compatible Pumps Affinity CP Models: AP40, BBAP40, CBAP40
Compatible Drives Stöckert/Sorin, Sarns/Terumo
Flow Capacity Full range support up to 7.0 L/min
Sterility Non-sterile (Reusable)
Material Medical-grade high-impact polymer/aluminum interface

Frequently Asked Questions

Which drive systems are compatible with the Medtronic AP40AST adapter?

The AP40AST adapter is specifically designed to bridge Medtronic Affinity CP blood pumps with third-party drive consoles. It is primarily used with Stöckert (Sorin/LivaNova) and Sarns (Terumo) centrifugal drive systems. This allows hospitals to standardize their pump choice regardless of the heart-lung machine brand they currently utilize.

Does using an adapter affect the flow rate or performance of the Affinity CP pump?

No. The AP40AST is engineered to maintain the full clinical performance of the Affinity CP pump. It supports the standard flow capacity of 1–7 L/min. Because it ensures precise magnetic alignment, there is no loss in torque or efficiency compared to using a native Medtronic drive system.

Is the AP40AST adapter a sterile, single-use item?

The Medtronic AP40AST is a non-sterile, reusable component. Because it sits outside the blood path and functions as a mechanical interface between the pump motor and the disposable pump head, it can be cleaned and reused across multiple procedures, making it a cost-effective solution for hospitals.

Does the host drive system require any modifications to use this adapter?

One of the primary benefits of the AP40AST is that it requires no host system modifications. It is designed to snap or lock onto the existing motor housing of the third-party drive, allowing for an immediate transition to the Affinity CP pump without technical downtime or service calls.

How does this adapter contribute to patient safety during bypass?

By ensuring perfect alignment between the drive motor and the centrifugal pump, the AP40AST prevents mechanical vibration and heat buildup. This stability is crucial for maintaining the “low-hemolysis” promise of the Affinity CP pump, protecting the patient’s red blood cells from damage during long bypass durations.

Can the AP40AST be used with the Bio-Medicus line of pumps?

The AP40AST is specifically optimized for the Affinity CP series, including the AP40, BBAP40, and CBAP40 models. For Bio-Medicus or other Medtronic pump lines, clinicians should verify specific adapter requirements, as the magnetic coupling geometry may differ between different centrifugal pump families.

Listing Terms & Conditions

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