Heart Valve Prosthesis
Accelerated Wear Testing with

NEW

Historical Data View

VIVITRO LABS AWT-V8 SYSTEM WITH DUAL CONTROL TECHNOLOGY (DCT)™ FIRST AWT TEST SYSTEM TO ALLOW EARLY DETECTION OF VALVE PROSTHESIS FATIGUE FAILURE UNDER CONSTANT LOADING CONDITIONS AT VALVE CLOSURE AND OPENING

  FEATURES

1. Monitor bypass valve behavior
2. Monitor system parameters: Bypass valve opening/closing, motor % utilization, motor temp
   1. Assess operating limits of the system
   2. Assess the system stability during AWT studies
   3. Assess system trends and behavior throughout the AWT study
   4. Assess operating differences and inconsistencies between chambers
   5. Assist in troubleshooting in system diagnosis to guide repair and maintenance
   6. Assist in troubleshooting fluid temperature stability issues
3. Monitor valve performance parameter: Peak different pressure, % cycle above pressure, fluid temperature, Bypass valve restriction % opening/closing Bypass valve opening/closing behavior allows to:
   1. Pinpoint a failure event on the valve
   2. Observe continuous subtle degradation of the valve
   3. Identify a potential cause of odd bypass behaviour, i.e. a bubble in pressure transducer
4. Combine long-term views of valve performance parameter to support root cause analysis on events leading to valve failure
5. Facilitates inspections of study parameters to confirm study compliance with ISO requirements
6. Advance plot navigation tool to assist user to inspect data or region of interest
   1. Long-term data plots against time or cycle
   2. Default display set to 24 hrs and auto-refreshes to show the most recent data trends
      1. Short term view to display most recent data with higher resolution – up to 5 days
      2. Long term view to display historical study data with lower resolution – from beginning of logging session
7. Conveniently analyze long terms trends of large data sets without requiring users to post-process large amounts of data

 

SPECIFICATIONS

Duration of Recent History View: Up to 5 Days
Duration of Full History View: Entire test duration
Number of Chambers Supported: 6
Number of Parameters Shown: up to 6
Parameters available for display: peak differential, % of cycle meeting target pressure, fluid temperature, motor temperature, motor % utilization, bypass valve % position

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NEW

Valve Comparison Tool

VIVITRO LABS AWT-V8 SYSTEM WITH DUAL CONTROL TECHNOLOGY (DCT)™ FIRST AWT TEST SYSTEM TO INTEGRATE SIDE-BY-SIDE LIVE KINEMATICS ASSESSMENT OF HEART VALVE PROSTHESIS DURING FATIGUE STUDIES

 

FEATURES

The ViVitro Labs AWT-V8 with DCT™ is a highly integrated tools specifically designed to ease valve inspection during AWT studies. The tool is made of 4 indissociable parts

• High Speed High Resolution 2.51 MP Camera with a 25 mm Lense
• Integrated High Speed Camera Valve Comparison software interface
• Adjustable intensity annular LED light for maximum high-speed imaging luminosity with minimal reflection impact
• Micrometric Rail Support System:
  • for repeatable high-speed camera positioning, increased image stability and reliability between inspection cycles
  • for easy and quick repeatable positioning between test modules

System features

• High Speed Camera with AWT system auto recognition - Uninterrupted camera recognition for live stream from chamber to chamber, even when closing the view.
• Software integrated High Speed Camera interface designed for video live streaming during valve tuning
• AWT system control parameters and test sample health statistics visible and accessible during live streaming and recorded video playing
• Automatic AWT test module visual identification upon video capture to minimize error on test sample selection – flashing light
• Adjustable intensity annular LED light for maximum high-speed imaging luminosity with minimal reflection impact
• Dedicated Micrometric Rail Support System for repeatable high-speed camera positioning, increased image stability and reliability between inspection cycles

1. Player features
   1. Standard functions of any video player (play, pause, etc.).
   2. Allows opening and closing any recorded video segment from various test systems
   3. Play back settings (speed, scale, contrast, rotation and pan size)
   4. Video autoloop for continuous and uninterrupted valve cycle inspection
   5. Video navigation (step frame by frame) leveraging the maximum precision available in the video to determine the optimum valve opening position
   6. Video rotation and pan settings for side-by-side valve comparison to facilitate precise test sample analysis
   7. Video markers to identify specific frames in relation to valve position
   8. Labelled video makers to identify specific events in relation to valve kinematics
   9. Video clipping for isolating specific valve cycles
   10. Video saving protocol for traceability and classification (default or user define)
   11. Resetting function for all user defined video parameters
2. Live stream features
   1. Virtual strobe effect to slow down live stream for ease of inspection
   2. Adjustable frame size to optimize valve inspection capabilities
   3. User selectable frame size to optimize and facilitate valve inspection
   4. Video setting reproducibility for convenient replication of recorded video settings to accelerate livestream video configuration
3. Recording function features
   1. Easy identification of targeted chamber during live recordings to reduce user error and AWT chamber confusion
   2. Metadata for AWT video segment captured with the file for easy reproduction (frame size, exposure recorded date, trial information, recording settings)
   3. Predefine number of cycles selection for efficient and consistent video capture and to minimize file size.
   4. Embedded export settings to allow users to visualize HS events in slow motion
   5. Auto naming video files based on AWT study information for improved traceability
   6. Export in a universal MP4 format for compatibility

 

SPECIFICATIONS

High Speed Camera:

Micrometric Rail Support System:

Output file formats: MP4
Input file formats: MP4, AVI, FLV, MOV, MKV

 

Standard file size examples - Assuming 5 Cycles at 20Hz
Frame Size	FPS	File Size
480x480px	818	4.87MB
544x544px	736	6.06MB
641x641px	641	8.02MB
736x736px	538	10.00MB

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NEW

Dashboard View

VIVITRO LABS AWT-V8 SYSTEM WITH DUAL CONTROL TECHNOLOGY (DCT)™ FIRST AWT TEST SYSTEM TO ENABLE SMART AT-A-GLANCE OVERVIEW OF THE STATUS OF MULTIPLE AWT TEST MODULES

 

FEATURES

1. Instantly provides a global view of current readings against targets for each chamber
   • Continuously monitors system measurements and conveniently displays set points or targets for 4 of the key measurements for all chambers connected to an AWT system
   • Key measurements including passing cycles, peak differential pressure, % of cycles meeting target pressure, and fluid temperature
2. Instantly provides a global view of each standalone test module status
   • Continuously monitors individual chamber health by providing information on motor status (running or stopped). Also provides information about the test logging status (inactive, paused, logging).
3. Provides system faults and errors with a warning indicator which can be clicked to display messages
   • Instantly flags users when study and system alarms are triggered
   • View system information at a distance to facilitate system monitoring as a whole.
4. Instantly provides passing cycle count for each module
   • Displays current passing cycle count for the study against the target.
   • Leverages advanced algorithms to detect the pressure waveform compliance to ISO 5840 passing criteria.
   • Provide clarity on study duration estimate by displaying the progress of the study against total cycle count target for each valve.
5. Instantly provides peak differential pressure reading for each chamber
   • Displays real time peak differential for each valve to allow user to assess valve loading conditions at any time during the study
   • Identifies the pressure target for each valve when running each chamber under different loading conditions and protocols
6. Instantly flags users when each chamber pressure is not meeting target (5% rule)
   • Leverages advanced algorithms to detect the pressure waveform compliance to ISO 5840 passing criteria.
   • Digital readout and color coding (red) conveys real-time attainment of pressure target and alerts user on the status of the chamber.
7. Instantly flags users when chamber temperature is out of range
   • Digital readout and color coding (red) conveys real-time attainment of temperature target +/- 2°C per ISO 5840 and alerts user when out of range

 

SPECIFICATIONS

Number of Parameters Shown: 4
Number of Chambers: Up to 6 (up to total 24 parameters)
Live Numeric Parameters Displayed: Number of Passed Cycles, Peak Differential Pressure, Percent of Cycle Above Target Pressure, Fluid Temperature
Parameter Color Indicators: Red for outside of acceptable ranges for 5% Rule and Temperature
Individual Chamber Running State Indicator: Off, On
Data Logging States: Off, Paused, Active
Error Indicator States: No Warnings, New Warning, Viewed Warning

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