Arjo Hydroven Series

Asset Type

Sequential Compression Device (SCD)

Manufacturer

Arjo

Model

Hydroven Series

What This Guide Helps With

Sleeves not inflating, weak inflation, or incomplete compression due to connection issues, leaks, or external airflow restrictions.

Step-by-Step Troubleshooting

Ensure Patient Safety First

• Remove the device from active patient use before troubleshooting.
• Expected: Patient placed on alternate DVT prophylaxis.

Verify the Reported Issue

• Power on the unit and observe a full cycle with sleeves connected.
• Expected: Confirm no inflation, weak inflation, or incomplete chamber filling.
• Why it matters: Confirms true issue vs normal cycle timing or perception.

Check Power and Unit Operation

• Ensure the unit powers on fully and you can hear the pump/compressor running.
• Expected: Audible pump operation during inflation phase.
• Why it matters: No sound may indicate a deeper internal issue rather than airflow restriction.

• If pump is silent → escalate to repair.

Inspect Garment (Sleeve) Connection

• Disconnect and firmly reconnect tubing to the device. Ensure it is fully seated.
• Expected: Secure, tight connection with no looseness.
• Why it matters: Loose connections are the most common cause of no or low inflation.

• If inflation returns → stop troubleshooting.

Inspect Tubing for Kinks or Obstructions

• Trace the entire tubing path from pump to sleeve. Remove any kinks, compression, or pinching.
• Expected: Tubing is straight and unobstructed.
• Why it matters: Restricted airflow prevents proper pressure delivery.

• If corrected and inflation returns → stop troubleshooting.

Check for Air Leaks in Tubing or Garment

• Inspect for cracks, holes, or disconnected segments. Listen for hissing during inflation.
• Expected: No audible leaks or visible damage.
• Why it matters: Air leaks reduce pressure and prevent full inflation.

• If leak found → replace tubing or garment → retest.

Verify Proper Sleeve Application

• Ensure sleeve is properly wrapped, not twisted, folded, or overly tight.
• Expected: Even contact along the limb with no restriction points.
• Why it matters: Improper application can restrict chamber expansion and mimic low pressure.

• If corrected and inflation normalizes → stop troubleshooting.

Try a Known-Good Garment and Tubing Set

• Swap with a known working sleeve and tubing.
• Expected: Normal inflation with replacement set.
• Why it matters: Quickly isolates accessory vs device issue.

• If resolved → faulty garment/tubing removed from service.

Check for Blocked or Contaminated Ports

• Inspect pump ports for debris, dust, or obstruction.
• Expected: Clean, unobstructed ports.
• Why it matters: Blocked ports can restrict airflow at the source.

If the Problem Persists

If all external causes have been ruled out and inflation is still weak or absent, the issue is likely internal (compressor, valves, or pressure system).

Remove the device from service, label it Out of Service, and send for repair or bench evaluation.

Clinical Use Tip

Do not troubleshoot while connected to a patient. Always transfer the patient to a functioning SCD before evaluating airflow or inflation issues.

Work Order Documentation (CCR Method)

CCR = Complaint, Cause, Resolution

Complaint

What was reported by the clinical staff.

Example:
"SCD sleeves not inflating properly during use."

Cause

What was observed during troubleshooting.

Example:
"Leak identified in garment tubing causing pressure loss."

Resolution

What action was taken.

Example:
"Replaced tubing and verified normal inflation cycle."

Helpful Details to Include (If Known)

• Outlet tested and unit powered on
• Pump sound present or absent
• Tubing condition and connections verified
• Garment swapped with known-good
• Any audible air leaks
• Final device status (returned to service or sent for repair)

Final Thought

Effective troubleshooting starts with simple airflow and connection checks before assuming internal failure. Prioritize patient safety, use known-good accessories to isolate issues, and escalate appropriately when needed. Clear documentation supports both repair decisions and future reliability tracking.

That is successful troubleshooting.