Pacific Northwest X-Ray Inc.

       Doppler Ultrasound Flow Simulator.       


Computerized Imaging Reference Systems, Inc! The Doppler Ultrasound Flow Simulator is designed to simulate blood flow in a tissue mimicking phantom, and may be used to perform quality assurance testing of Doppler ultrasound devices. The two most common tests are sensitivity and velocity accuracy, but a number of other useful tests are also described in the literature (see references).

The simulator includes a tissue-mimicking flow phantom with a blood-vessel-simulating, ultrasound-compatible tube that enters the phantom at an angle. The phantom has both a top and bottom scanning surface that allows testing at varying depths and angles of orientation. This makes the phantom suitable for testing both peripheral flow and deeper abdominal vessels. The phantom is filled with Zerdine® tissue mimicking gel with a speed of sound of 1540 m/s, an attenuation of 0.7 dB/cm/MHz and a backscatter contrast designed to match that of the liver. It is housed in rugged ABS plastic for added durability. Customers who wish to combine B-mode quality assurance features with Doppler testing may request customization of the phantom to include wire, greyscale and anechoic targets.

The simulator allows includes the following components:
  1. A peristaltic pump capable of providing flow rates of 0.5 to 12.5 ml/s, which translates to an average flow velocity of 2-70 cm/s. (Peak flow velocities will be 2-4 times greater than the average flow velocity due to the effects of laminar and pulsatile flow.)
  2. A fluid reservoir pre-filled with CIRS blood mimicking fluid. Replacement fluid may be ordered separately.
  3. A pulse dampener that converts the pulsatile flow from the peristaltic pump into constant velocity flow.
  4. Convenient color coded tubing with quick-disconnect fittings.
  5. Convenient hard-shell carry case designed so that the full system is pre-configured within the case.


Features:
  • Max Flow Rate is 750 mL/ min.
  • Min Flow Rate is 0.04 mL/ min.
  • Pulsatile or Constant Velocity configurations available.
  • Tissue-Equivalent phantom.
  • Varying tube depths for peripheral and abdominal vessel simulation.
  • Blood Mimicking Fluid simulates acoustic and physical characteristics of blood.
  • All components stored in compact case for easy transport.
  • A peristaltic pump capable of providing flow rates of 0.5 to 12.5 ml/s, which translates to an average flow velocity of 2-70 cm/s. (Peak flow velocities will be 2-4 times greater than the average flow velocity due to the effects of laminar and pulsatile flow.)
  • A fluid reservoir pre-filled with CIRS blood mimicking fluid. Replacement fluid may be ordered separately.
  • A pulse dampener that converts the pulsatile flow from the peristaltic pump into constant velocity flow.
  • Convenient color coded tubing with quick-disconnect fittings.
  • Convenient hard-shell carry case designed so that the full system is pre-configured within the case.

  • Specifications:
    DOPPLER FLOW PUMP
    MOTOR TYPE: Step Motor
    MOTOR STEPS PER REVOLUTION: 200
    MICROSTEPPING: 1/8 to 1/1 depending on motor speed
    DC CONNECTOR: 2.1mm, center positive.
    VOLTAGE AT DC CONNECTOR: 24V DC at full load.
    AMPERAGE: 900mA at full load.
    POWER SUPPLY TYPE: Unregulated linear external wall adapter, country and power source specific
    POWER SUPPLY OUTPUT RATING: 24V DC @ 1A
    DIMENSIONS: 7 ¾" x 5 1/4" x 5 3/4" High (19.685 cm x 13.335 cm x 14.605 cm)
    WEIGHT: 4.51 lbs. (2.05 kg)
    MAXIMUM SPEED: 372 rpm
    MINIMUM SPEED: 0.0168 rpm
    MAXIMUM PUMPING RATE: 775.2 mL/min with 3/16 ID tubing.
    MINIMUM PUMPING RATE: 0.035 mL/min with 3/16 ID tubing.

    TISSUE EQUIVALENT PHANTOM
    DIMENSIONS: 20 cm x 12.5 cm x 27.5 cm
    TUBING: Inside Dimensions: 3/16" - Outside Dimensions: ¼"
    SCAN SURFACE: Saran laminate membrane; 12.5 cm x 17.5 cm
    BACKGROUND MATERIAL: Zerdine®, SoS: 1540 m/s ± 10 m/s, Attenuation: 0.7 dB/cm-MHz


    BLOOD MIMICKING FLUID
    PROPERTY
    HUMAN BLOOD (37°C)
    BLOOD MIMICKING FLUID (22°C)
    Viscosity (mPa)
    3
    4 ± 0.5
    Velocity (m/s)
    1583
    1570 ± 30
    Attenuation (dB/cm/MHz)
    0.15
    < 0.1
    Backscatter (f4 m-1 sr-1)
    4x10-31
    Not Measured
    Fluid Properties
    Non Newtonian
    Newtonian


    Stock #
    Description
    Your Price
    069
    Doppler Ultrasound Flow Simulator
    $8,246.15











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