Viscoelastic Impedance Adapter (VIA)

Product Code: VIA7991

The ViVitro Viscoelastic Impedance Adapter (VIA) works in conjunction with the SuperPump pulsatile pump to produce more realistic physiological ventricular pressures. It consists of a fixed resistive element and two adjustable compliance chambers to simulate ventricular viscoelastic behavior.

Features:

• Adjustable dP/dt ratio to produce both physiological and diseased cardiac models
• Filters high frequency noise when testing prosthetic valves and aortic conduits
• Easily adjusted

Fixed resistance200 c.g.s. unitsCompliance air volumesSOURCE 0-120 ml, OUTPUT 0-60 ml, syringe adjustableTotal liquid volume500 ml with SOURCE / OUTPUT compliance air volumes zeroMaterialsAcrylic, Polycarbonate, Delrin, Nylon, Polyethylene, Stainless Steel, Viton

ViVitro Labs Pulse Duplicator Characterization Valve Kit

Product Code: 56468 SJM MECHANICAL, 25MM

ISO 5840-2:2021 and 5840-3:2021 now require performance characterization of pulse duplicator system performance. The ViVitro Labs Pulse Duplicator characterization valve kit includes a ISO 5840:2021 ViVitro Labs Pulse Duplicator characterization test method and St. Jude Master’s valve with certified results for the ViVitro Pulse duplicator.

Features:

• St. Jude Master’s Valve
• ISO 5840:2021 ViVitro Labs Pulse Duplicator characterization test method
• Certificate with St. Jude Master’s Valve test method results

Large Atrium Chamber (Mitral)

Product Code: 21179

The Large Atrium chamber allows devices with an outer diameter of up to 70mm to be tested in the Pulse Duplicator.

• Expands the mitral device testing capabilities of the system
• Quick-release system allows fast device changes
• Accurate flow measurements from flow probe at Atrium inflow
• Enhanced visibility using large viewing window for mitral device inflow
• Customizable Valve Mounting
• Easily added to a ViVitro Pulse Duplicator

Percutaneous Access Device

Transapical Access Product Code: 18496
Transfemoral Access Product Code: 18497

ViVitro offers two standard methods of deploying percutaneous devices into the Pulse Duplicator system; either Transfemoral or Transapical access (Aortic and Mitral). Additional methods can be customized by ViVitro or third party specialists.

Percutaneous Catheter Access enables the deployment of transcatheter devices in an active Pulse Duplicator while the flow loop is operating under pressure. The Percutaneous Catheter Access is designed to accommodate up to 34 French deployment devices and mounts easily to a ViVitro Model Heart (Left or Right).

Features:

• Transapical access can be rotated to access aortic
  or mitral valves
• Catheter insertion with little to no fluid loss during
  pulsatile operation
• Replaceable valves
• Easy to disassemble and clean

Left Ventricular Assist Device (LVAD) Accessory

Product Code: 25205

The Left Ventricular Assist Device (LVAD) accessory enables testing of LVAD devices with physiological pulsatile flows generated by the ViVitro Pulse Duplicator. It is an optional add-on to the ViVitro Pulse Duplicator. A ventricular cannulation option is also available. Connection points are ½” hose barbs.

The accessory package includes components which provide connection points for the:

• Ventricle apex
• Aortic chamber

PIV Load Assembly (Customized Only)

Product Code: 700-ENGS-XX

Aortic Particle Image Velocimetry (PIV) Flow Visualization

The PIV Load Assembly provides an optically clear, anatomically representative aortic inflow and outflow to enable Particle Imaging Velocimetry studies in the Pulse Duplicator. The PIV Load Assembly replaces the lower half of the standard aortic load assembly and is easily substituted into the ViVitro Labs Pulse Duplicator.

• Optically clear, non-distorting inflow and outflow section
• Interchangeable and customizable silicone aortic annulus
• Anatomical aortic sinuses
• Outflow pressure port
• Easily installed in the Pulse Duplicator

Specifications

The geometry of the aortic root is based on a reasonable simplification of the average measurements published in manuscripts by Tops (2008) and Buellesfeld (2013) (data procured from MSCT).

• Optically clear Acrylic components
• Aortic root diameter (customized sizes only)
• Outflow section length (customized sizes only)
• Inflow diameter section (customized sizes only)

Schematic of a PIV setup, including laser, lenses, high speed camera, and PIV Load Assembly in a Pulse Duplicator.

SProduction Tester Quality Control System

Product Codes: 21026

The ViVitro Production Tester Quality Control System provides a simplified system that assesses valve performance criteria for production quality control. It is an add-on to the ViVitro Pulse Duplicator and is intended for Production / QC applications. The Production Tester quickly captures reliable results for a fraction of the cost of designing an in-house system. In conjunction with QCtest software, the Production Tester assesses pressure and flow criteria while recording high speed valve footage via an integrated camera.

Features & Applications

Quick-change valve holder can be custom-tailored to valve design

Captures pressure and flow data including:

• Transvalvular Pressure
• Effective Orifice Area
• Regurgitant Fraction
• Captures high-speed video
• Provides Pass/Fail results

Administrators can set individual operation parameters for technicians:

• Operating conditions
• User defined Pass/Fail performance assessment
• Defined calibration expiry intervals
• Test data is tracked by linking result logs to valve model and serial number

Pulse Duplicator Pressure Transducers

Product Code: HCM018

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).

Heat Exchanger

Heat Exchanger Product Code: HE9991

The ViVitro Heat Exchanger allows heating of test fluid with minimal interference of the fluid flow.

• Maintains testing solution to desired temperature ± 0.5°C
• Inlet/Outlet total Pressure drop = 3.8-4.1 mmHg at 7L/m
• Low Pressure drop with minimal interference to the fluid flow
• Test fluid is not exposed to high temperature heating elements
• Easy to disassemble and clean

Heat Bath

Heat Bath Product Code: 10679 N.A., 10680 Int’l

The Heat Bath Temperature Controller delivers rapid fluid heat-up, optimized for the ViVitro Pulse Duplicator. These heated circulating baths feature a long life, high-wattage heater.

• Over Temperature and Low Reservoir level automatic system cut-offs eliminate risk of over heating system components

• Reservoir: volume6 litres (1.5 gallons)
• Temperature range: ambient 15°C to 150°C
• Stability: Digital ±0.05°C
• Work area dimensions: 20 x 15 x 13 cm
• Overall dimensions: 23 x 36 x 37 cm
• Heater: 1000 W
• Pumping capacity: 12 L/min at 0 psig
• Electrical Requirements: 115 VAC, 60 Hz, 15 amp or 230 VAC, 50 Hz 10 amps (specify when ordering)

Customized Conduit Mount

Product Code: 18903

The ViVitro Conduit Mount (ACM) is used to mount various compliant conduits (native or synthetic root) to test surgical or percutaneous devices in the ViVitro Model Heart system. The ACM also enables valves to be sutured and mounted to native or synthetic roots in an anatomically correct fashion.

Customized ACM accessories can be designed to fit device sizes and geometries. Custom designs can  be created for items such as compliant conduits, as well as inflow and outflow hose barbs positioned on a semi-adjustable mount to accommodate various heights/length.

Please contact ViVitro to discuss and customize an ACM for your unique application and testing requirements.