Medline BioCon 700 / 750 Series

Asset Type

Bladder Scanner

Manufacturer

Medline

Model

BioCon 700 / 750 Series

What This Guide Helps With

Troubleshooting inaccurate, inconsistent, or unexpected bladder-volume results caused by targeting, probe technique, gel, settings, patient factors, accessories, or device faults.

Step-by-Step Troubleshooting

1. Ensure Patient Safety First

Do not troubleshoot questionable bladder-volume measurements while clinical decisions are being based solely on the affected scanner.

If urinary retention or another time-sensitive condition is suspected, provide clinical staff with another verified assessment method or known-good bladder scanner before continuing.

Expected: Patient care is not dependent on an unverified bladder-volume result.

Why it matters: The BioCon series uses noninvasive ultrasound to estimate bladder volume. Poor targeting or unreliable measurements can produce misleading results and should not delay appropriate clinical assessment. The BioCon 700 includes real-time pre-scan capability intended to help locate the bladder before measurement, while the BioCon 750 uses BladderPoint targeting technology.

If patient safety is restored, continue troubleshooting in a controlled Clinical Engineering setting.

2. Confirm the Exact Reported Problem

Determine what “inaccurate” or “poor targeting” means in practice:

• Repeated scans produce widely different volumes
• Measured volume does not correlate with expected clinical findings
• Scanner repeatedly fails to locate the bladder
• Targeting indicator remains off-center
• Bladder image is weak, incomplete, or difficult to identify
• Measurements are consistently unexpectedly low
• Measurements are consistently unexpectedly high
• Problem occurs only with certain patients
• Problem occurs with all patients or test conditions

Repeat the complaint only under safe conditions and document the actual displayed volume, targeting behavior, and any messages.

Expected: The failure pattern is clearly defined.

If the issue cannot be reproduced and repeated scans are stable: document findings and stop after completing appropriate functional verification.

3. Inspect the Probe and Scan Surface

Examine the ultrasound probe for:

• Cracks
• Impact damage
• Separation of the probe housing
• Damage to the acoustic surface
• Dried gel buildup
• Residue or contamination
• Evidence of fluid intrusion
• Abnormal looseness

Clean the probe only using approved methods and compatible products.

Expected: The acoustic surface is clean, intact, and suitable for consistent ultrasound coupling.

Why it matters: Physical damage or contamination at the probe surface can interfere with acoustic transmission and contribute to weak or inconsistent targeting.

If cleaning resolves the issue: repeat several scans for consistency, document the correction, and stop.

4. Verify Adequate Ultrasound Gel

Confirm that sufficient compatible ultrasound gel is being used between the probe and test surface or patient.

Look for:

• Too little gel
• Dried gel
• Large air gaps
• Uneven probe contact
• Inappropriate substitute products

Apply fresh ultrasound gel and repeat the scan.

Expected: The probe maintains continuous acoustic coupling without visible air gaps.

Why it matters: Air between the transducer and skin significantly interferes with ultrasound transmission and can cause poor image quality or failed targeting.

If fresh gel restores consistent targeting and volume readings: the problem is resolved; stop.

5. Verify Probe Position and Orientation

Confirm that the probe is positioned according to the device’s intended suprapubic scanning approach and that the probe orientation is correct.

For bench evaluation, determine whether the complaint may be caused by:

• Starting too far above the pubic region
• Aiming away from the expected bladder location
• Excessive probe angulation
• Repeated repositioning before the device completes its scan
• Incorrect orientation of the probe marker or handle
• Excessive pressure that changes probe position

The BioCon 700 supports real-time pre-scan viewing to assist bladder location, while the BioCon 750 is marketed with BladderPoint technology that provides a targeting reference for locating the bladder.

Expected: The displayed targeting aid or bladder image can be centered consistently before measurement.

If corrected positioning restores repeatable measurements: document the technique-related cause and stop.

6. Check Whether the Problem Is Patient-Specific

Determine whether poor targeting occurs:

• On one patient only
• On a particular body habitus
• After recent voiding
• With very low expected bladder volume
• With abdominal dressings or wounds
• With scars near the scan area
• With unusual pelvic anatomy
• With conditions that may complicate ultrasound interpretation

Do not conclude that the scanner is defective from a single difficult scan.

Expected: Clinical Engineering distinguishes a device-wide failure from patient-specific scanning difficulty.

Why it matters: Bladder scanners estimate volume from ultrasound data, and anatomy or scan conditions may affect targeting and repeatability.

7. Verify Patient or Scan-Mode Settings

Review applicable patient-selection or scan settings before testing.

Confirm that the selected mode matches the intended patient category and available device options.

Pay particular attention to sex-related settings where applicable. Guidance for the BioCon 700 indicates that female-mode selection may account for the presence of the uterus, while adult patients without a uterus are directed to the male setting in the referenced BioCon guidance.

Do not change settings solely to force a desired volume result.

Expected: The scanner is configured appropriately for the test condition.

If correcting an inappropriate setting restores consistent results: document the configuration issue and stop.

8. Compare Repeated Measurements

Under controlled conditions, obtain several consecutive scans without substantially changing:

• Probe position
• Probe angle
• Test subject or phantom
• Gel application
• Device settings

Record each displayed volume.

Look for:

• Tight clustering of values
• Large unexplained variation
• Intermittent zero or near-zero results
• Loss of targeting between scans
• Results that change when the cable or probe is moved

Expected: Repeated measurements are reasonably consistent for the same controlled condition.

If repeatability is acceptable: investigate technique, patient factors, or the original clinical environment before assuming device failure.

9. Compare With a Known-Good Scanner When Available

Using the same safe test condition, compare the affected BioCon with another verified bladder scanner.

Keep variables as consistent as practical:

• Same test condition
• Similar probe location
• Similar patient or phantom state
• Fresh gel
• Appropriate settings

Do not expect two different bladder scanners to display perfectly identical values.

Expected: The affected unit should not show gross, persistent, or unexplained disagreement across repeated controlled comparisons.

If only the affected unit remains inconsistent: continue troubleshooting.

10. Inspect the Probe Cable and Connections

Where applicable to the specific BioCon configuration, inspect the probe cable and connection path for:

• Loose connection
• Partially seated connector
• Bent or damaged contacts
• Crushed cable
• Sharp kinks
• Intermittent response during gentle cable movement
• Strain near the probe or connector

Power the device down before disconnecting or reconnecting accessories when required by local procedure.

Reconnect securely and retest.

Expected: The probe connection is mechanically secure and scanning remains stable during normal handling.

If reseating the connection resolves the issue: repeat functional checks, document the correction, and stop.

11. Substitute a Known-Good Compatible Probe When Authorized

If your department has an approved compatible known-good probe, substitute it without opening the scanner.

Repeat the same controlled scan comparison.

Expected:

• If the known-good probe restores repeatability, suspect the original probe or cable assembly.
• If the problem remains unchanged, suspect the console, configuration, calibration state, or another device-level fault.

Do not condemn the console before ruling out the external probe assembly.

If the replacement probe resolves the issue: remove the defective probe from service and follow local replacement or repair procedures.

12. Review Self-Diagnostic or Maintenance Indications

Check for:

• Hardware warnings
• Maintenance messages
• Self-diagnostic failures
• Startup abnormalities
• Persistent error indications
• Abnormal touchscreen or display behavior

The BioCon 750 is marketed with built-in self-diagnostic capability intended to identify hardware or maintenance concerns.

Document the exact message rather than writing only “scanner error.”

Expected: No unresolved diagnostic condition is present.

If a persistent hardware or maintenance indication appears: stop routine troubleshooting and escalate for service evaluation.

13. Evaluate Calibration or Accuracy Verification Status

Review:

• Last preventive maintenance date
• Last accuracy verification
• Previous repair history
• Prior probe replacement
• Recent impact or drop event
• Repeated inaccurate-volume complaints
• Applicable calibration or verification requirements

Medline lists a calibration kit accessory specifically for the BioCon 700, supporting the need to consider formal verification when accuracy remains questionable.

Do not improvise calibration procedures or adjust internal values without approved service documentation, proper test equipment, and authorization.

Expected: The scanner’s verification status is current and traceable.

If accuracy cannot be verified: remove the unit from clinical use pending proper evaluation.

14. Perform Final Functional Verification

Before returning the unit to service, verify:

• Scanner powers on normally
• Probe is recognized and physically intact
• Targeting or pre-scan function operates
• Repeated scans are reasonably consistent
• No unresolved diagnostic message is present
• Controls and display operate normally
• Device passes applicable local inspection or performance checks

Expected: The scanner demonstrates stable, repeatable operation with no unresolved safety or accuracy concern.

If the device passes: return it to service according to department policy and document the findings.

If the Problem Persists

If inaccurate volume readings or poor targeting continue after external causes, gel, probe positioning, patient settings, repeatability, connections, accessory substitution, and verification status have been evaluated, common external causes have been ruled out.

The issue may involve:

• Probe/transducer failure
• Intermittent probe cable fault
• Ultrasound acquisition fault
• Targeting or image-processing fault
• Calibration or accuracy-verification problem
• Internal electronics failure

The device should be:

• Removed from service
• Labeled Out of Service
• Sent for repair or controlled bench evaluation

Do not open the scanner or attempt board-level troubleshooting without approved service documentation, appropriate training, and required test equipment.

Knowing when to stop is proper troubleshooting. An unresolved accuracy concern should not be accepted simply because the scanner still produces a numerical value.

Clinical Use Tip

Do not troubleshoot inaccurate bladder-volume measurements while clinical staff are relying on the affected scanner for patient-management decisions.

Move the patient to another verified assessment method first when clinically necessary. Troubleshoot only when safe, and remember that a displayed volume is not proof that the measurement is accurate.

Work Order Documentation (CCR Method)

CCR = Complaint, Cause, Resolution

Complaint

What was reported by the clinical staff.

Example:
"Clinical staff reported the BioCon bladder scanner produced inconsistent bladder volumes and was difficult to target despite repeated scans."

Cause

What was observed during troubleshooting.

Example:
"Inspection found inadequate acoustic coupling from dried gel residue on the probe surface and insufficient fresh ultrasound gel during repeat testing."

Resolution

What action was taken.

Example:
"Cleaned the probe using approved methods, applied fresh ultrasound gel, repeated controlled scans with consistent targeting and repeatable volume measurements, and returned the device to service."

Helpful Details to Include (If Known)

• Probe condition inspected
• Scan surface cleaned
• Fresh ultrasound gel used
• Patient or scan mode verified
• Targeting indicator behavior
• Pre-scan image behavior
• Repeated volume values recorded
• Known-good probe tested
• Known-good scanner comparison performed
• Diagnostic or maintenance messages
• Recent drop or impact history
• Calibration or verification status
• Unusual heat, sound, or smell
• Final device status

Final Thought

Bladder-scanner troubleshooting should begin with patient safety, then move logically through coupling, targeting, probe condition, settings, repeatability, and accessories before suspecting internal failure. When measurement accuracy cannot be confidently verified, remove the device from service and escalate appropriately. Clear CCR documentation preserves what was reported, what was actually found, and why the device was returned to service or sent for repair.

That is successful troubleshooting.