Doppler Flow Pump - CIRS 769
Perform Sensitivity & Velocity QA on Doppler Ultrasound
The Doppler Flow Pump 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 pump is compatible with all ATS and CIRS doppler flow phantoms.
The Pump includes the following components:- A peristaltic pump that provides flow at rates from 0.04 to 750 ml/min, 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, because of laminar and pulsatile flow.)
- A fluid reservoir pre-filled with CIRS Doppler 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.
- Graduated cylinder for purging phantoms of Doppler Fluid after each use. Also useful for calibrating the pump.
- Pump-to-USB cable, allowing the pump to be programmed to mimic a human pulse. Instructions and examples are included.
- Used in conjunction with ATS Urethane or Zerdine phantoms
- Max Flow Rate is 750 mL/ min
- Min Flow Rate can be as low as 0.04 mL/ min*
- Pulsatile or Constant Velocity configurations available
- Doppler fluid simulates acoustic and physical characteristics of blood
- All components stored in compact case for easy transport
Doppler Ultrasound Flow Phantom showing pulsatile
Doppler Ultrasound Flow Phantom showing continuous flow
| 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 Raiting | 24V DC @ 1A | |
| Dimensions |
9" x 4" x 8" High (23cm x 10cm x 20cm) |
|
| 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 | 0.04 mL/min with 3/16 ID tubing | |
| Doppler Fluid | ||
| Property | Human Blood (37°) | Doppler Fluid (22°) |
| Viscosity (mPa) | 3 | 4 ± 0.5 |
| Velocity (m/s) | 1583 | 1570 ± 30 |
| Attenuation (dB/cm/MHz) | 0.15 | < 0.1 |
| Backscatter (f4 m-1 sr1) | 4x10-31 | Not Measured |
| Fluid Properties | Non Newtonian | Newtonian |
|
"Validation of a New Blood-Mimicking Fluid for Use in Doppler Flow Test Objects", K. Rammnarine, et. al., Ultrasound in Medicine & Biology, Vol. 24. No. 3, pp.454. |
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| Compatible Phantoms | ||
| Model | Description | |
| ATS 524 & 525 | Peripheral Vascular Doppler Flow Phantom | |
| ATS 523 & 523A | Cardiac Doppler Flow Phantom | |
| 069A | Doppler Flow Phantom | |
| Custom phantoms are available upon request. Contact customer service at sales@supertechx-ray.com for more information. | ||
