MedRad Vistron CT
MedRad · Model Vistron CT
Program and start injection from injector head allows operation of CT injector from patient's side for safety and convenience Autofill function saves time and effort Large LEDs provide easy-to-see continuous injection status One to four phase injections meets a variety of CT injection needs Programmable pressure limit offers increased safety and flexibility Compact remote monitor provides continuous injection status Flexible programming permits operator to program protocol using any two of the following: flow rate, volume, duration time Manual knob provides sensitivity for small volume test injections Choice of language options: English, Dutch, French, German, Italian, Japanese, Spanish, and other languages available.
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 malfunction code prevents arming or interrupts an injection
HighSymptoms: Error code on the control panel, injector will not arm or stops mid-injection.
Root cause: Operator-induced condition (e.g. syringe/air check) or a system fault - the code indexes the troubleshooting section.
Syringe heater fault
MediumSymptoms: Contrast not warmed, heater LED off or flashing, cable damage.
Root cause: Failed syringe heater, cable or connector.
Injector head will not drive / inaccurate volume
MediumSymptoms: Piston will not advance, flow rate or volume wrong, stalls under pressure.
Root cause: Drive motor, leadscrew or the pressure-limit sensing.
Remote monitor / hand-control communication loss
MediumSymptoms: No status on the remote monitor, cannot program or start from the head.
Root cause: Cable, connector or the console communication board.
Disarms near strong RF / magnetic fields
LowSymptoms: Injector disarms or will not operate when phones/transmitters are nearby.
Root cause: EMI susceptibility - keep transmitters away from the system.
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.
Syringe heater assembly
Class Periodic replacementRel. cost $$R&R Fairly easy
Injector head drive motor / leadscrew
Class Major service partRel. cost $$$R&R Difficult
Head / remote interconnect cable
Class Periodic replacementRel. cost $$R&R Fairly easy
Remote monitor
Class Major service partRel. cost $$$R&R Fairly easy
Disposable syringe / tubing
Class ConsumableRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Syringe heater assembly | Periodic replacement | $$ | Fairly easy |
| Injector head drive motor / leadscrew | Major service part | $$$ | Difficult |
| Head / remote interconnect cable | Periodic replacement | $$ | Fairly easy |
| Remote monitor | Major service part | $$$ | Fairly easy |
| Disposable syringe / tubing | 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: Error code on the control panel
- Follow ESD precautions before touching any board.
- Note the exact error code and whether it appeared at arm or during injection.
- Look the code up in the System Malfunction Codes / troubleshooting section.
- Try the simple causes first (syringe seated, air cleared, cables seated).
- Disconnect the power cord before removing or replacing any PC board.
Symptom: Contrast not warming
- Ensure the syringe heater is warm to the touch and the LED is not flashing.
- Inspect the heater cable and connector for cracks or wear.
- Reseat the connector.
- Replace the syringe heater assembly if it stays cold.
- Verify warm-up before the next case.
Technical Specs
- Injector Syringe Configuration
- Single
Documents & Manuals
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