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What This Guide Helps With
Troubleshooting difficulty locating or centering the bladder in live view due to probe position, coupling gel, technique, patient factors, or equipment faults.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Do not perform extended troubleshooting while the BioCon 900S is being relied upon for an immediate clinical decision.
If bladder volume information is urgently required and targeting remains unreliable, provide clinical staff with another verified bladder scanner or appropriate alternative assessment method.
Expected: Patient care is not delayed by unresolved targeting performance.
If transferring to another verified device resolves the immediate clinical concern, continue troubleshooting only in a controlled Clinical Engineering setting.
Confirm the Exact Reported Behavior
Determine what “poor live-view targeting” means in practice:
- Bladder cannot be located in live view
- Target repeatedly moves off center
- Live image is weak or poorly defined
- Image appears only at certain probe angles
- Targeting is inconsistent between scans
- Problem occurs only on certain patients
- Live view freezes, lags, or becomes intermittent
- Final measurements vary substantially despite repeated positioning
Reproduce the complaint in a controlled setting when possible.
Expected: The failure pattern is clearly identified before parts are replaced.
If the issue cannot be reproduced and live view remains stable during repeated testing, document the results and investigate technique, patient conditions, or intermittent accessory problems before assuming device failure.
Inspect the Scanner and Probe Externally
Examine the scanner and probe for:
- Cracks
- Impact damage
- Separation of housing components
- Damage to the acoustic surface
- Dried gel residue
- Contamination
- Evidence of fluid intrusion
- Loose components
- Signs of abnormal wear
Clean the probe according to approved facility and manufacturer-compatible procedures.
Expected: The scanner and probe are intact, clean, and free of obvious conditions that could interfere with scanning.
If cleaning resolves the live-view problem, verify repeated successful targeting and stop.
Verify Adequate Ultrasound Gel
Confirm an appropriate amount of compatible ultrasound gel is applied between the probe and test surface or patient.
Look for:
- Too little gel
- Incomplete gel coverage
- Dried gel
- Large trapped air pockets
- Inconsistent contact across the scan surface
Expected: Continuous acoustic coupling is present without obvious air gaps.
If proper gel application restores a stable live image, verify repeatability and stop.
Verify Probe Placement and Orientation
Confirm the probe is positioned over the expected suprapubic region and aimed toward the bladder.
During controlled testing:
- Start near the expected bladder location
- Maintain full probe contact
- Make small angle changes
- Avoid large sweeping movements
- Observe whether the target becomes better defined or centered
Expected: Small controlled changes in probe position and angle produce predictable changes in live view.
If corrected placement resolves the complaint, verify repeated successful targeting and stop.
Check for Excessive Probe Pressure or Poor Contact
Repeat the test using firm but controlled contact.
Avoid:
- Barely contacting the skin or test surface
- Rocking on one edge of the probe
- Excessive pressure
- Allowing the probe to slide uncontrollably on excessive gel
Expected: The probe remains stable with consistent contact during live viewing.
If stable contact restores targeting, confirm repeatability and stop.
Confirm the Correct Scan Workflow
Verify the scanner is in the intended live-view or targeting workflow before the final measurement is initiated.
Check for:
- Incorrect operating screen
- Scan initiated before the bladder is located
- Accidental interruption of live view
- Incorrect sequence of scanner controls
- A workflow issue occurring only with one operator
Expected: Live view remains active and responsive during deliberate probe positioning.
If correct workflow resolves the issue, document operator guidance provided and stop.
Compare Multiple Operators
Have another trained operator repeat the targeting process using the same scanner.
Compare:
- Ability to locate the bladder
- Stability of the target
- Time required to obtain acceptable positioning
- Repeatability of probe placement
Expected: Results help separate a scanner problem from technique-dependent performance.
Interpretation:
- One operator consistently succeeds: technique or training is more likely
- Multiple operators reproduce the same failure: equipment, probe, test conditions, or patient factors become more likely
Do not replace hardware solely because one operator has difficulty targeting.
Determine Whether the Problem Is Patient-Specific
Check whether poor targeting occurs:
- On every patient
- Only with certain body habitus
- With abdominal dressings
- With positioning limitations
- Following recent abdominal or pelvic procedures
- When very low bladder volume is suspected
- Only under specific clinical conditions
Expected: A scanner fault is not declared based on one difficult patient scan.
If the problem is isolated to particular patient conditions while controlled testing is normal, document that distinction and stop equipment troubleshooting.
Compare With a Known-Good Scanner or Compatible Component, If Available
Using only approved compatible equipment, compare the affected setup with a known-good BioCon 900S system when available.
Keep testing conditions consistent:
- Same operator
- Same gel
- Same test surface or phantom
- Same scan workflow
- One variable changed at a time
Expected: The fault can be isolated to the scanner, probe, test condition, or operator technique.
If the issue follows a specific component, remove that component from service and escalate appropriately.
If the problem remains associated with the scanner, continue troubleshooting.
Test With an Approved Training Phantom, If Available
Use a compatible bladder training phantom when available.
Check whether:
- Live view appears consistently
- The target can be located repeatedly
- Probe movement produces logical target changes
- Targeting remains stable between repeated attempts
Expected: Controlled phantom testing reduces patient anatomy and positioning variability.
Interpretation:
- Normal phantom performance suggests patient or technique factors
- Poor phantom performance suggests probe or scanner malfunction
If phantom performance is consistently normal, document the result before considering equipment replacement.
Check for Intermittent Response During Normal Handling
While observing live view in a controlled nonpatient test condition, gently reposition the scanner and probe through normal operating movements.
Watch for:
- Image dropout
- Frozen live view
- Sudden loss of target
- Flickering
- Delayed response
- Failure associated with movement
- Unexpected restart
- Error messages
Do not aggressively flex, twist, strike, or stress components.
Expected: Live-view behavior remains stable during normal handling.
If normal movement repeatedly causes image or targeting loss, remove the device from service and escalate.
Restart the Scanner and Repeat Testing
When clinically safe and away from active patient use:
- End the current session normally
- Power the scanner off
- Allow shutdown to complete
- Restart the scanner
- Repeat live-view testing under the same controlled conditions
Expected: Live view initializes normally and remains responsive.
If restart restores normal targeting, perform several repeated checks before returning the scanner to service.
Do not return the scanner to service if the freeze, lag, or targeting failure recurs.
Review Messages, Indicators, and Startup Behavior
Document any:
- Error messages
- Warnings
- Startup abnormalities
- Self-test or diagnostic concerns
- Probe recognition problems
- Frozen screens
- Unexpected application behavior
- Reboots
Expected: No unresolved warning or system abnormality accompanies the targeting complaint.
If a persistent warning, diagnostic fault, or abnormal startup condition occurs with poor targeting, stop troubleshooting and escalate.
Perform a Final Reproducibility Check
Before returning the scanner to service, repeat targeting several times under controlled conditions.
Verify:
- Live view initializes normally
- Targeting responds predictably to probe movement
- The target can be located consistently
- No freezing or dropout occurs
- Performance is repeatable
- No unresolved warning is displayed
Expected: The scanner demonstrates stable, repeatable live-view targeting.
If the problem is resolved, document the identified cause and stop.
If performance remains inconsistent, do not return the scanner to clinical use.
If the Problem Persists
If proper gel, probe condition, positioning, scan workflow, operator technique, patient-related factors, restart behavior, and controlled comparison testing have been evaluated, common external causes have been ruled out.
The remaining issue is likely internal or related to the scanner’s imaging, probe, processing, display, or system-control functions.
The device should be:
- Removed from service
- Labeled Out of Service
- Sent for repair or bench evaluation
Do not proceed into internal disassembly or board-level troubleshooting without appropriate authorization and service documentation.
Knowing when to stop is proper troubleshooting. Persistent inability to provide stable live-view targeting should not be accepted as normal operation.
Clinical Use Tip
Do not troubleshoot unreliable bladder targeting while clinical staff are depending on the scanner for an immediate patient-care decision.
Move the patient to another verified bladder scanner or appropriate alternative assessment method first. Perform extended troubleshooting only when safe.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Clinical staff reported the BioCon 900S live view would not consistently locate or center the bladder during scanning."
Cause
What was observed during troubleshooting.
Example:
"Inspection and controlled testing found inadequate ultrasound gel coverage causing inconsistent probe contact and unstable live-view targeting."
Resolution
What action was taken.
Example:
"Cleaned the probe surface, applied appropriate ultrasound gel, and completed repeated targeting checks with stable live-view response; scanner returned to service."
Helpful Details to Include (If Known)
- Probe surface inspected
- Probe damage observed
- Ultrasound gel verified
- Live view stable or intermittent
- Target visible but off center
- Target not visible
- Problem patient-specific or universal
- Multiple operators tested
- Known-good comparison performed
- Training phantom tested
- Image dropout observed
- Freeze or lag observed
- Error messages present
- Startup behavior
- Restart attempted
- Final device status
Final Thought
Poor live-view targeting should be approached logically: protect the patient first, verify coupling and probe technique, separate patient factors from equipment behavior, and escalate when controlled testing remains abnormal. Clear CCR documentation preserves what was reported, what was found, and why the scanner was returned to service or removed for repair.
That is successful troubleshooting.