HiCycle Heart Valve Durability Tester

Products » HiCycle Durability Tester

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.

Read our FAQs:

10 ways ViVitro HiCycle compares to equipment built in-house.

How do I mount my device in the ViVitro HiCycle?

Contact us for a more comprehensive understanding of how the ViVitro HiCycle can expand and enhance your device testing capabilities.

Product Code: 15809

Related Part Numbers: 16587 HiCycle Module, 11270-B HiCycle Controller, 08531 Data Acquisition System, 08311 I/O Module, AP9991 AmPack

Test up to 6 device designs simultaneously
Electrodynamic drive mechanism is quiet, stable, and reliable
Temperature controlled
Independent chambers allow for quick device change-out and startup
Rotatable Scan-Valve with mounted transducers for quick pressure collection
Angled windows assist in chamber de-bubbling
Transparent materials provide flow and device visualization
Adjustable sync pulse to output for synchronization

Scan-Valve with fix mounted transducers for quick pressure collection
Electromagnetic drive mechanism for quiet, stable, and reliable operation
Energy efficient and robust design reduces the need to replace costly consumable components
Independent chambers allow for quick device change-out and start-up
Temperature controlled
Proven history of reliability
Materials are chemically compatible with testing solutions and most sterilization methods
Ability to test prosthetic heart valves and other cardiovascular devices including Occluder and Closure Devices

Dry Weight: Module: 25 kg; Controller: 8 kg; Cart: 18 kg
Dimensions without cart: Module: 64 x ∅30 cm; Controller: 43 x 34 x 15 cm
Dimensions with cart: 57 x 58 x 132 cm
Cycle Rates: 500 – 1650cpm

Temperature Range: up to 40°C ± 0.5°C
Operating Pressure Head: 0 - 65 mmHg
Volume per Chamber: 280mL
Working Height for Valve: 5 cm
Device Diameter: <=35 mm
Valve Mounting: custom silicon rubber rings fabricated using jig provided
Flow Restrictors: one in each chamber with index dial range 0-100% in 2% divisions
Cycle Count: 8 digit front panel LCD, up to 99,999,999 million

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:

I/O Module – inputs/outputs signals from the software
Laptop
Connecting cables
Software (ViVitest, Hitest or QCtest)
AmPack Pressure Measuring System including transducers and amplifier

When coupled with the HiCycle or the Real-Time Wear Tester, Hitest provides the most powerful, userfriendly tool for durability testing. Operators are able to monitor pressure and collect data through an intuitive user interface. Hitest provides accurate pressure data and statistical analysis to ensure the tested devices are meeting ISO5840 standards. The results highlight the percent of cycles and percent time per cycle the device is meeting or exceeding target pressure.

Product Code: 08531 Data Acquisition System

PN 08311 I/O Module and AP9991 AmPack

Backwards compatible with ViVitro products
.Net 3 Platform
Configured for 64-bit Windows 7 operating systems
Installer allows for easy updates
Singular program eliminates the need for intrusive third party software

Easy to read interface

HiCycle Cart

Product Code: HCM200

The ViVitro HiCycle Cart makes the ViVitro HiCycle system portable and raises it to a comfortable working height. The HiCycle Cart features:

Locating pin and quick release fasteners
Locking castor wheels for secure positioning
Height adjustable pressure head post

Stroboscope

Product Code: 08235

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.

User adjustable flash rates - 40.0 to 12,500 fpm (flashes per minute)
Advance or retard flash timing by degrees of angle, without changing actual fpm
Includes AC adapter and extra flash bulb

Specifications

Flash Range: 40.0 to 12,500 fpm (flashes per minute)
Speed Range: 40 to 59,000 rpm
Resolution: 0.1 fpm: 100 to 9,999 fpm; 1 fpm: 10,000 to 12,500 fpm
Accuracy: ±0.5 fpm/rpm or ±0.01% of reading, whichever is greater
Power Supply: NiMh rechargeable battery
Weight: 1 lb 7 oz (650g)

Digital Manometer

Product Code: 06104

Precision, handheld digital pressure reference manometer conveniently calibrates pressure transducers. Can be recalibrated in the field for zero, span, and linearity.

Accurate primary standards to calibrate devices locally
Engineering Units - Inches of H₂O (select 4° C, 20° C, or 60° C), PSI, mm of Hg, inches of Hg, mBars, Bars, kPa, kg/cm², cm of H₂O and user selectable scaling.
1 point of 5 point calibration options
Accuracy: ±0.05% FS
Media Compatibility - DN: Non-isolated differential sensor for clean, dry, non-corrosive gases. GI & AI: Isolated Gauge or Absolute sensor for fluids compatible with 316L SS

Mitral HiCycle Durability Tester

Product Code: 27616

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:

Data Acquisition Software
HiCycle Cart
Bellows
Stroboscope
Manometer

HiCycle Pressure Transducers

Product Code: 06146

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.

The I/O Module and AmPack provide the interface from the pressure transducers to the Data Acquisition System.
Suitable for use with the Pulse Duplicator, EV Simulator, Real-Time Wear Tester or the HiCycle (modified connector when used with Scan Valve).