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What This Guide Helps With
Troubleshooting compression paddle detection, compression movement, compression force, or release problems using safe external checks before repair escalation.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Confirm no patient is currently compressed or positioned for imaging before troubleshooting.
If the fault occurs during an active exam and the patient is under compression, immediately involve mammography staff and use the approved compression release method according to site policy.
Expected outcome: The patient is safely released before equipment troubleshooting continues.
If the compression system cannot release normally, stop troubleshooting and escalate immediately.
Confirm the Reported Compression Issue
Ask the technologist what occurred and when it occurred.
Identify whether the issue involves:
- Compression paddle not recognized
- Compression paddle will not lock in place
- Compression movement will not start
- Compression force appears incorrect
- Compression releases unexpectedly
- Compression will not release
- Error appears during positioning, exposure setup, or startup
Expected outcome: The fault type is clearly identified before accessories or the compression mechanism are suspected.
Inspect the Compression Paddle
Remove the paddle only if the system is idle and safe to access.
Check the paddle for cracks, warped plastic, damaged locking tabs, contamination, or anything preventing full seating.
Expected outcome: The paddle is physically intact and can seat properly.
If the paddle is cracked, damaged, or does not latch securely, remove it from service and test with an approved spare paddle if available.
Reseat the Compression Paddle
Remove and reinstall the paddle fully into the receptor or paddle holder.
Confirm it clicks, locks, or seats as expected and does not feel loose.
Expected outcome: The system detects the paddle and allows normal compression setup.
If reseating resolves the issue, document the finding and stop.
Try a Known-Good Compatible Paddle
If available, test with another approved MAMMOMAT Inspiration-compatible compression paddle.
Use the same exam setup only if safe and appropriate.
Expected outcome: A known-good paddle helps determine whether the issue follows the accessory or remains with the system.
If the fault disappears with another paddle, remove the suspect paddle from service.
Check for Debris or Obstruction at the Paddle Mount
Inspect the paddle receiver, locking area, detector surface area, and compression mount for debris, tape, labels, cleaning residue, or small objects.
Do not force the paddle into place.
Expected outcome: The paddle mount is clean and unobstructed.
If debris is found and removed, retest paddle detection and compression movement.
Verify Compression Controls Are Not Stuck or Damaged
Inspect the hand controls, foot controls, gantry controls, and release controls used by staff.
Check for stuck buttons, damaged cords, crushed footswitch cables, or controls left pressed under equipment.
Expected outcome: No external control is continuously commanding compression, release, or preventing movement.
If a damaged control or cable is found, remove the device from use and escalate for repair.
Check Emergency Release and Safety Controls
Confirm that emergency release controls are not engaged, physically damaged, or stuck.
Make sure staff did not activate a release function that requires a system reset before normal compression operation returns.
Expected outcome: Safety controls are in normal operating condition and not preventing compression.
If an emergency release control appears faulty, remove the system from clinical use.
Check System Messages at the Acquisition Workstation
Review the displayed error or warning message.
Record the exact wording, code if shown, and whether the fault appears during:
- System startup
- Paddle installation
- Compression movement
- Exposure preparation
- Automatic decompression
- Manual release
Expected outcome: The failure point is documented clearly for service evaluation.
Verify Normal System Startup State
Confirm the system completed startup without other gantry, detector, exposure, or workstation faults.
A broader system startup problem may affect compression control or paddle recognition.
Expected outcome: Compression troubleshooting is not masking a larger mammography system fault.
If multiple unrelated system faults are present, stop and escalate.
Check for Mechanical Binding or Unusual Movement
With no patient present, observe compression movement only through normal operator controls.
Look for hesitation, uneven travel, abnormal noise, scraping, vibration, sudden release, or inconsistent movement.
Do not force movement or attempt internal adjustment.
Expected outcome: Compression movement is smooth, controlled, and predictable.
If movement is abnormal, remove the system from service.
Verify Reported Force Concern Safely
If staff report excessive, weak, or inconsistent compression force, do not attempt patient testing.
Confirm whether the concern is based on displayed force, patient complaint, failed QC, or inconsistent technologist experience.
Expected outcome: The force concern is documented without placing a patient at risk.
If compression force is questionable, remove the system from clinical use until evaluated.
Check Whether the Fault Is Paddle-Specific or Reproducible
Compare behavior using different approved paddles, if available.
Note whether the issue occurs with all paddles, one paddle size, one exam mode, or one operator control location.
Expected outcome: The problem pattern is narrowed to an accessory, control, or likely internal compression system issue.
Perform a Safe Functional Check Only if Site Policy Allows
With no patient present, confirm paddle detection, compression movement, hold, and release using approved clinical controls.
Do not perform calibration, internal adjustment, or service-level compression force testing unless qualified and authorized.
Expected outcome: The system either returns to normal operation or the fault is confirmed.
If the compression fault repeats, stop troubleshooting.
If the Problem Persists
If the compression paddle has been reseated or swapped, controls have been checked, no obstruction is found, and the fault continues, the issue is likely internal to the compression drive, force sensing, paddle detection, control circuit, or release mechanism.
The MAMMOMAT Inspiration should be:
- Removed from service
- Labeled Out of Service
- Sent for repair or bench/system evaluation by qualified imaging service personnel
Knowing when to stop is proper troubleshooting. Compression faults directly affect patient safety and image acquisition reliability, so the system should not remain in clinical use with unresolved compression or release concerns.
Clinical Use Tip
Never troubleshoot compression problems while a patient is under compression unless the immediate goal is safe patient release. If compression behavior is unpredictable, move the patient off the system and use another mammography unit before continuing equipment checks.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Technologist reported that the MAMMOMAT Inspiration did not recognize the compression paddle during exam setup."
Cause
What was observed during troubleshooting.
Example:
"Found the paddle not fully seated in the paddle holder; no damage was seen on the paddle or mount."
Resolution
What action was taken.
Example:
"Reseated the compression paddle, verified paddle recognition and normal compression/release operation with no patient present, and returned the system to service."
Helpful Details to Include (If Known)
- Patient was safely released or no patient was present
- Exact compression fault message or code
- Paddle type and size installed
- Paddle inspected for cracks or damaged locking tabs
- Known-good paddle tested
- Paddle mount checked for debris or obstruction
- Hand controls and foot controls inspected
- Emergency release status checked
- Compression movement behavior observed
- Any abnormal noise, vibration, or binding
- Whether compression released normally
- Final device status
Final Thought
Compression faults on a mammography system must be handled carefully because they can affect patient comfort, safety, positioning, and exam completion. Start with the paddle, controls, release functions, and visible obstructions before suspecting internal failure. If compression force or release behavior remains unreliable, remove the system from service and document the findings clearly.
That is successful troubleshooting.