AWT System

Heart Valve Prosthesis
Accelerated Wear Testing with

AWT-V8 system with Dual Control Technology (DCT)™

The following features of the ViVitro Labs AWT-V8 system with Dual Control Technology (DCT)™ were developed to address the limitations of older 1st and 2nd generation AWT systems on the market:

  • Fully software-controlled system with active bypass valve control to provide 100% confidence that all cycles have achieved ISO 5840 requirements.
  • Pre-wired controller unit and data acquisition system for easy PnP upgrade of up to 6 test modules to ensure maximum versatility and modularity.
  • True standalone architecture and independent test modules to avoid disruption to adjacent on-going tests.
  • 38ml/stroke - largest stroke volume on the market - specifically designed to meet Dynamic Failure Mode (DFM) test conditions with large valve prosthesis.
  • Large transparent test chambers to provide optimum inflow, outflow, and lateral visibility during test samples inspection.
  • Patent pending flow loop to operate system under low hydrostatic pressure conditions and without any external pressure source or compressor.
  • Standalone architecture of test modules with dedicated electronics, linear electromagnetic motors, automated by-pass control, and temperature management for precise control.
  • Visual identification for easy recognition of active test modules during test setup and tuning phases.
  • Test system standalone architecture to eliminate neighboring test module disruptions during testing.
  • Modular system to optimize component interchangeability.
  • True independent test modules to eliminate test chamber fluid interactions.
  • Independent heaters and temperature sensors for each test module for precise test sample regulation.
  • Large test chamber design to fit a wide variety of valve sizes, geometry and supporting structures for TAVI, TMVR, TPVR, TTVR and surgical.
  • Low hydrostatic load system design to increase lifespan of seals and bellows.
  • Valve holder design for optimum test chamber seal integrity.
  • Integrated anti-vibration systems to minimize pressure signal disruptions and improve stability during high-speed video capture.
  • Vertical test sample configuration to minimize asymmetric gravitational wear effects on valve leaflets.
  • Customizable valve annulus ring to fit all valve geometries for TAVI, TMVR, TPVR, TTVR and surgical.
  • Adjustable outflow pressure sensor height to accommodate different designs.
  • Embedded safety systems for fluid level, temperature change and pressure drop monitoring
  • Sliding test module mechanism for optimum test sample inflow visualization.
  • Sliding test module mechanism for ease of setup and servicing.
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heart valve durability tester
ViVitro AWT System with DCT™ 2 test modules configuration

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