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What This Guide Helps With
Troubleshooting failed image capture, video recording, playback, export, or internal storage behavior on a C-MAC Pocket Monitor.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Confirm the C-MAC Pocket Monitor is not being actively used for airway management before troubleshooting documentation or storage issues.
If the device is needed for a procedure, provide clinical staff with another functioning video laryngoscope or monitor before removing this one for evaluation.
Expected outcome: Patient care is not delayed or dependent on a device with uncertain recording or storage function.
Confirm the Reported Documentation Failure
Ask clinical staff what specifically failed:
- Still image capture
- Video recording
- Playback
- Internal storage access
- Export or transfer
- File not saved after capture
- Storage full message
- Button press not responding
Attempt to reproduce the issue only when the device is safe and available for testing.
Expected outcome: The failure mode is clearly identified before assuming a storage fault.
Check Battery Level and Power Stability
Verify the monitor has adequate battery charge.
If the battery is low, charge the unit using the approved charger and retest image or video capture after the device has sufficient power.
Expected outcome: Documentation functions work normally when the monitor has stable power.
If this resolves the issue, stop troubleshooting and document the low battery condition.
Inspect the Monitor for Physical Damage
Check the Pocket Monitor housing, display, control buttons, charging port, and connection area for:
- Cracks
- Liquid residue
- Impact damage
- Loose or stuck buttons
- Corrosion
- Damaged connectors
Expected outcome: No external damage is present that could affect button response, storage access, or device operation.
If damage is found, remove the device from service.
Verify Correct Camera or Laryngoscope Connection
Confirm the connected C-MAC video laryngoscope or camera cable is fully seated and producing a stable live image.
A documentation function may appear to fail if the monitor does not have a valid image source or if the video connection is intermittent.
Expected outcome: A stable live image appears before image or video capture is attempted.
If reseating the connection restores normal capture, stop troubleshooting.
Check Button and Control Response
Test the capture or recording controls. Confirm whether the button responds normally, feels stuck, or requires excessive force.
Also verify whether other monitor controls respond normally.
Expected outcome: Controls respond consistently without sticking or delay.
If the capture control does not respond but other device functions work, suspect a control/button issue and escalate for repair.
Check for Storage Full or File Capacity Messages
Look for any message indicating memory is full, recording cannot continue, or storage is unavailable.
If the device allows stored images or videos to be reviewed, verify whether internal storage appears full.
Follow facility policy for deleting or transferring stored patient images before clearing memory. Do not delete clinical documentation without approval.
Expected outcome: Storage capacity is available and documentation can be saved.
If approved file removal or transfer restores capture, stop troubleshooting.
Verify Date, Time, and File Handling Behavior
Confirm whether captured images or videos are actually missing, or if they are saved under an unexpected date, time, or file order.
Incorrect date/time settings or unfamiliar file organization can make saved files appear absent.
Expected outcome: Saved files are visible, correctly listed, and retrievable.
Attempt a Controlled Test Capture
With no patient involved, connect a compatible scope or camera, display a safe test image, and attempt:
- One still image capture
- One short video recording
- Playback or review of the saved file
Expected outcome: The monitor captures, stores, and plays back the test file successfully.
If the test capture succeeds, the original issue may have been related to workflow, low battery, full memory, or a temporary connection problem.
Check Export or Transfer Process Separately
If files save internally but cannot be exported, separate the issue into storage versus transfer.
Check for:
- Approved transfer cable or interface
- Correct connection to the receiving computer or system
- Damaged cable
- Facility computer restrictions
- Incorrect workflow for file retrieval
Expected outcome: Files stored on the monitor can be accessed or transferred using the approved facility process.
If internal playback works but export fails, document the export path tested and escalate as a transfer/interface issue.
Power Cycle and Retest
Turn the monitor off, allow it to fully shut down, then power it back on and repeat a controlled image or video capture test.
Expected outcome: Documentation functions return to normal after restart.
If this resolves the issue, document the temporary storage or software behavior and return the device only after repeated successful testing.
Do Not Perform Internal Storage Repair in the Clinical Area
Do not open the Pocket Monitor or attempt internal memory, board, or firmware repair during clinical troubleshooting.
Internal storage faults, corrupted memory behavior, failed controls, or repeated documentation failures require bench evaluation or vendor-supported repair.
Expected outcome: Troubleshooting remains limited to safe, external, verifiable checks.
If the Problem Persists
If the C-MAC Pocket Monitor still cannot capture, store, play back, or export images/videos after power, connection, control, workflow, and storage-capacity checks, common external causes have been ruled out.
The device should be removed from service, labeled Out of Service, and sent for repair, bench evaluation, or vendor-supported service.
Knowing when to stop is proper troubleshooting. Continued use may risk loss of airway documentation or incomplete clinical records.
Clinical Use Tip
Do not troubleshoot image documentation issues during an active airway procedure. If live visualization is needed for patient care, move the patient to a backup device first and prioritize therapy continuity. Provide another monitor for documentation needs when possible.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Clinical staff reported that the Karl Storz C-MAC Pocket Monitor would display a live image but would not save still images or video recordings."
Cause
What was observed during troubleshooting.
Example:
"Troubleshooting found adequate battery charge and a stable live image, but test captures were not retained in internal storage after restart."
Resolution
What action was taken.
Example:
"Removed the Pocket Monitor from service, labeled it Out of Service, and sent it for bench evaluation due to suspected internal storage or control fault."
Helpful Details to Include (If Known)
- Battery level at time of failure
- Charger used and charging indicator status
- Whether live video image was present
- Whether still image, video, playback, or export failed
- Any storage full or memory-related messages
- Whether files were visible in internal review/playback
- Whether files saved but could not export
- Cable or interface used for transfer
- Button response or control behavior
- Any visible damage, liquid residue, or impact marks
- Whether power cycling changed the issue
- Final device status
Final Thought
For a C-MAC Pocket Monitor, live visualization and image documentation are separate functions. Clinical Engineering should first verify patient safety, power, connections, controls, storage capacity, and workflow before suspecting internal memory failure. If documentation remains unreliable, remove the device from service and document the findings clearly using CCR.
That is successful troubleshooting.