The ViVitro HiCycle Durability Tester is used to determine the durability of replacement heart valves and other cardiac devices under physiological loading for R&D and regulatory submissions.
With the Hitest Data Acquisition System, operators can monitor pressure and collect data according to ISO 5840 standards.
The HiCycle system uses an electrodynamic motor driving six pistons within fluid-filled, temperature-controlled chambers to move the device rather than the fluid. This results in higher energy efficiency and stable fluid flow. The devices can be cycled at accelerated rates up to 1,800 cycles/minute (30 Hz)”.
Clear viewports allow imaging of the device during testing, and pressure ports allow monitoring of the dynamic pressures upstream and downstream of the device.
Each test chamber is independent of the others to offer testing flexibility.
The ViVitro HiCycle Durability Tester is cited in numerous research studies throughout the world. Visit our Citation Database for the current list of applications and articles.
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Contact us for a more comprehensive understanding of how the ViVitro HiCycle can expand and enhance your device testing capabilities.
ViVitro offers a family of quality data acquisition software products to aid in collection of data to meet ISO5840 requirements including ViVitest, Hitest and QCtest. The software is pre-installed on a laptop and tested with all hardware and A-D converters prior to shipment.Each complete system is supplied with the following components to make up a functional system:
The ViVitro HiCycle Cart makes the ViVitro HiCycle system portable and raises it to a comfortable working height. The HiCycle Cart features:
Compact, battery-operated stroboscope enables operator to view devices while they are cycling. The rechargeable hand-held system provides mobility throughout the lab. It delivers fast and accurate cycle per minute measurements to verify cycle rates.
Precision, handheld digital pressure reference manometer conveniently calibrates pressure transducers. Can be recalibrated in the field for zero, span, and linearity.
This enhanced version of the ViVitro HiCycle Durability Tester supports mitral valve durability testing for devices up to 55 mm in diameter. The Mitral HiCycle tests up to three devices simultaneously.The Mitral HiCycle system uses the same electrodynamic motor as the original ViVitro HiCycle to drive three pistons within fluid-filled, temperature-controlled chambers moving the device rather than the fluid. The result is more stable fluid flow. Cycle rates are adjustable from 500 – 1,800 cpm (8.3 – 30 Hz). The Mitral HiCycle is available as a complete system or an upgrade kit can be purchased to convert existing HiCycles. The Mitral HiCycle is fully compatible with all the other ViVitro HiCycle components and accessories including:
The ViVitro Data Acquisition System includes 3 Utah Medical 6069 Pressure Transducers. Additional Pressure Transducers can be ordered separately.A cable test-port allows for easy verification of monitoring system accuracy and reusable interface cables are available for most every monitor.