GE Healthcare Optima IGS Series

Asset Type

Fluoroscopy / Interventional System

Manufacturer

GE Healthcare

Model

Optima IGS Series

What This Guide Helps With

Identifies external causes of table motion sync or position errors, including obstructions, encoder misreads, cabling, and system initialization issues.

Step-by-Step Troubleshooting

Ensure Patient Safety First

• Confirm no patient is on the table and all staff are clear of movement zones.
• Why: Prevents injury from unintended table movement during troubleshooting.

Observe Error Behavior and Movement Response

• Attempt small table movements using the control interface.
• Note:
• Does the table move at all?
• Does it stop abruptly?
• Are position values incorrect or drifting?
• Expected Outcome: Helps determine if issue is mechanical restriction, encoder feedback, or sync loss.

Check for Physical Obstructions

• Inspect under and around the table for:
• Cables, foot pedals, or tubing
• Accessories or rails contacting the base
• Floor obstructions
• Remove anything interfering with movement.
• Expected Outcome: Clearing obstructions restores normal motion if collision or resistance triggered the fault.

Verify Table Lock / Brake Status

• Ensure all table brakes or locks are fully disengaged.
• Check for:
• Partial brake engagement
• Error indicators related to lock status
• Expected Outcome: Fully released brakes allow smooth motion and proper position tracking.

Inspect Emergency Stop (E-Stop) Status

• Check all E-stop buttons (room, table-side, control console).
• Ensure they are fully released.
• Expected Outcome: Resetting E-stop restores motion and clears interlock-related sync errors.

Check Table Control Devices

• Test all input devices:
• Hand controls
• Foot pedals
• Control console
• Look for:
• Stuck buttons
• Intermittent response
• Expected Outcome: Faulty or stuck controls can cause conflicting commands and sync errors.

Inspect Visible Cabling to Table Base

• Check all accessible cables between the table and system:
• Look for loose, pinched, or damaged cables
• Reseat connectors if accessible
• Why: Encoder signals rely on stable connections for accurate position feedback.
• Expected Outcome: Secure connections may restore accurate position reporting.

Perform a Controlled System Restart

• Shut down the system properly and restart fully.
• Observe table initialization/homing process.
• Expected Outcome: Table completes homing sequence without errors and position resets correctly.
• Why: Sync and encoder faults often occur if initialization is interrupted or incomplete.

Verify System Initialization Completes Fully

• Ensure the system reaches a full “Ready” state before attempting movement.
• Expected Outcome: Premature use before full initialization can trigger sync mismatches between motion and encoder feedback.

If the Problem Persists

If table motion sync or encoder errors continue after verifying external causes, the issue is likely internal (encoder failure, drive system issue, or control board fault).

Remove the system from service, label it Out of Service, and escalate for vendor repair or bench evaluation.

Knowing when to stop prevents further damage and ensures safe operation.

Clinical Use Tip

Never troubleshoot table motion issues with a patient present. Always transfer the patient to a safe surface before testing movement.

Work Order Documentation (CCR Method)

CCR = Complaint, Cause, Resolution

Complaint

What was reported by the clinical staff.

Example:
"Table movement inconsistent with position display; system showing encoder/sync error."

Cause

What was observed during troubleshooting.

Example:
"No external obstruction found; issue persists after reboot and cable checks—likely internal encoder or control fault."

Resolution

What action was taken.

Example:
"Removed system from service, labeled out of service, and escalated for vendor repair."

Helpful Details to Include (If Known)

• Table movement behavior (jerky, stopped, no response)
• Error codes or messages displayed
• E-stop status verified
• Obstructions cleared
• Cables inspected/reseated
• System reboot performed
• Initialization/homing behavior observed
• Final system status

Final Thought

Table motion and position accuracy are critical for safe imaging and procedures. Always start with simple external checks, but recognize when encoder-related issues require escalation. Proper documentation and timely removal from service protect both patients and equipment.

That is successful troubleshooting.