Kendall SCD EXPRESS
Kendall · Model SCD EXPRESS
ALL-IN-ONE CONTROLLER - Delivers compression to the leg, foot, or both simultaneously. Customer has the choice of leg or foot compression with one controller. VASCULAR REFILL DETECTION - Moves a greater VOLUME of BLOOD over time, minimizing stasis. Customizes the compression cycle, moving blood from the lower extremities as soon as possible, as often as necessary. No nursing intervention is required to operate. Ensures continual monitoring of a patient's venous refill status. BATTERY OPERATION - Move patients throughout the hospital with no interruption of therapy (room to room, floor to floor, testing, etc.). Allows for the elimination of power cords during times when they may get in the way (i.e., the operating room, interventional radiology, etc.). Can be used during ambulation. GARMENT DETECTION - Provides safety and ease of use. The system detects what type of garment is applied to each leg. The fully automated system easily changes between leg and foot compression parameters with the touch of a button. SINGLE-LEG OPERATION - System accommodates single leg application. Clinicians can provide therapy to patients who may only have one leg compressed (i.e., contraindications, amputation, etc.). SMALL FOOTPRINT - Easy to transport. Less space needed for storage. Sized so that the device will not get lost.
Key tips
- ·Most "no output" stim-unit complaints are cable-side - check electrode/lead continuity before assuming a unit fault.
- ·Frame and strap wear on mechanical rehab equipment is a real fall/injury risk - don't defer it as cosmetic.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Motor / actuator / drive will not run or is weak
HighSymptoms: Traction force not applied, CPM carriage will not move or stalls, drive assist weak, motion one direction only.
Root cause: Worn drive motor / leadscrew / actuator, a hand-control fault, or a control-board fault.
Force / range / position inaccuracy
MediumSymptoms: Set traction force or CPM angle not reached, load cell drifts, carriage overshoots or stalls short.
Root cause: Load-cell / position-sensor drift, a potentiometer fault, or a limit-switch fault.
Hand control / patient-control fault
MediumSymptoms: Hand control unresponsive, the patient stop / reverse button does not work.
Root cause: Worn hand control or a damaged cable.
Frame / bearing / cable wear
MediumSymptoms: Rough or noisy travel, play in the carriage, frayed traction cord or rope.
Root cause: Worn bearings / slides or a frayed cable / cord.
Power / battery fault
LowSymptoms: Will not power on, short battery run time.
Root cause: Power supply / fuse or an aged battery.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Drive motor / leadscrew / actuator
Class Major service partRel. cost $$$R&R Difficult
Load cell / position sensor / potentiometer
Class Major service partRel. cost $$R&R Moderate
Hand control
Class Periodic replacementRel. cost $$R&R Fairly easy
Bearings / slides / traction cord
Class Periodic replacementRel. cost $$R&R Moderate
Power supply / fuse / battery
Class Major service partRel. cost $R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Drive motor / leadscrew / actuator | Major service part | $$$ | Difficult |
| Load cell / position sensor / potentiometer | Major service part | $$ | Moderate |
| Hand control | Periodic replacement | $$ | Fairly easy |
| Bearings / slides / traction cord | Periodic replacement | $$ | Moderate |
| Power supply / fuse / battery | Major service part | $ | Moderate |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Frame and strap wear inspection
- ·Electrode lead continuity check
- ·Annual electrical safety test
Error Codes
Extracted directly from this unit's own service manual.
Battery ErrorIf a battery calibration error or battery cell failure is detected this error will be displayed.
- Turn the Controller off, plug it into an AC power outlet, and restart. - If the problem persists recalibrate or replace the battery pack. - Make sure the controller is not covered and that the fan port is not obstructed. - Turn the Controller off, allow it to cool, and restart. - Verify that the cooling fan is properly connected. - Have the Controller serviced by a professional if the problem persists.
Temperature ErrorIf the internal case temperature of the Controller drops below 5° C (41° F) or exceeds 55° C (131° F).
- Turn the Controller off, allow it to cool, and restart. - Verify that the cooling fan is properly connected.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: No or low output on a modality / channel
- Fit a fresh applicator / handpiece / electrodes for that modality.
- Substitute a known-good lead / cable.
- Test therapeutic-ultrasound output into a water bath (visible cavitation / warmth) and run the applicator-contact / BNR self-test.
- Try the modality on another unit if available.
- Escalate a confirmed output-stage fault to the OEM.
Symptom: Patient feels nothing / open-circuit on an e-stim channel
- Fit fresh self-adhesive electrodes on well-prepped skin.
- Swap the lead wires.
- Confirm the current ramps and there is no open-electrode alarm.
- Test the channel into a resistive load per the manual.
- Refer the output stage if a good lead set still gives nothing.
Symptom: Unresponsive or erratic touchscreen / parameters will not set
- Power-cycle the unit.
- Recalibrate / re-seat the touchscreen if the touch is offset.
- Check the mains fuse and power supply.
- Confirm the cooling fan runs and the vents are clear.
- Replace the touchscreen or power supply as isolated.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Physical therapy / rehab gym
- Outpatient rehab clinic
- Sports medicine
Documents & Manuals
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