|Doppler Ultrasound Flow Simulator.|
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:
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