MedRad Stellant D
MedRad · Model Stellant D
Saline Flush capability for contrast efficiency, improved image quality, and reduced image artifact Easily upgradeable Software and Hardwar Improved syringe design for quick, easy install and detachment of CT syringe Automation Features; Integrated Auto Load, Auto Retract, Auto Prime, Auto Syringe Sensing Remote Check For Air confirmation button on CT injector head Remote Arming at CT injector head Color Touchscreen Pressure Monitor Graph to display real-time pressure during injection Programmable Pressure Limit Integrated Test Inject to ensure patency of vein Graphical, real-time Flow Profile Stopwatch Timer Protocol Lock.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
System calibration error (CAL prefix)
HighSymptoms: "CAL" system-malfunction code, cannot arm, injection blocked.
Root cause: Calibration values missing or corrupt for the potentiometer, flex ring or pressure sensor.
Docking-sensor fault (DOCK SENSA / DOCK SENSB)
MediumSymptoms: System reports a docking sensor closed with no syringe attached, will not arm that side.
Root cause: Contamination in the syringe interface, a misaligned syringe, or a failed size sensor.
Motor encoder fault (ENCA / ENCB)
HighSymptoms: "ENC" code, jerky or stalled piston travel, inaccurate volume.
Root cause: Encoder or associated circuitry on motor A/B, an unseated P4 connector, or a failing power-drive card.
Under-volume / prime-with-wrong-fluid hazard
HighSymptoms: Delivered volume low, air-column or prime warnings, contrast/saline mix-up.
Root cause: System configured to prime with contrast but primed with saline (or vice versa) - configuration and workflow issue flagged in FDA recall.
Disposable-path fault (T-connector / tubing)
MediumSymptoms: Leaks at the low-pressure connector tubing, cracked T-connector.
Root cause: Kit T-connector susceptible to cracking / breaking (per FDA recall) or over-pressure on the disposable set.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Servo / CPU card
Required for several CAL and ENC faults; recalibrate after fitting.
Class Major service partRel. cost $$$$R&R Difficult
Syringe size / docking sensor
Class Major service partRel. cost $$R&R Moderate
Power-drive card
Class Major service partRel. cost $$$R&R Difficult
Drive motor (A or B)
Class Major service partRel. cost $$$R&R Expert-level
Disposable CT syringe and low-pressure connector tubing
Single-patient consumable.
Class ConsumableRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Servo / CPU card Required for several CAL and ENC faults; recalibrate after fitting. | Major service part | $$$$ | Difficult |
| Syringe size / docking sensor | Major service part | $$ | Moderate |
| Power-drive card | Major service part | $$$ | Difficult |
| Drive motor (A or B) | Major service part | $$$ | Expert-level |
| Disposable CT syringe and low-pressure connector tubing Single-patient consumable. | Consumable | $ | Easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: CAL-prefix error, system will not arm
- Follow ESD precautions before touching any circuit card.
- Note the exact CAL code text on the control panel.
- Attempt the guided recalibration of the system potentiometer, flex ring and pressure per the service manual.
- If calibration will not complete or hold, replace the Servo/CPU card.
- Recalibrate fully and verify a test injection volume and pressure before release.
Symptom: DOCK SENSA / DOCK SENSB error with no syringe fitted
- Remove any syringe and inspect the syringe interface on that side for contrast deposits.
- Clean the interface area and re-check.
- Fit a syringe correctly and confirm it seats fully; verify the fault clears/appears with the syringe in and out.
- If the sensor still reads closed with nothing installed, replace that side's size sensor.
- Confirm both sides arm normally after repair.
Technical Specs
- Injector Syringe Configuration
- Dual
- Modality Compatibililty
- CT
Documents & Manuals
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
The root cause investigation showed that the under-volume hazard can occur when the unit has been configured to prime with contrast, but instead primes with saline due to the configuration data not being sent to the injector head. This may create a non-optimal priming condition that could lead to under-infusion.
- RECALL
Packaging may exhibit open seals - sterility compromised
- RECALL
Kits contain a T connector that may be susceptible to cracking or breaking or leaking. This could cause product leakage or, less likely, patient injury.
- RECALL
the heat maintainer, an accessory, may overheat and deform the disposable syringe
- RECALL
Sterility can be compromised by a tear in the outer packaging.
- RECALL
Sterility can be compromised by a component tearing the outer packaging
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