Alcon 200Hz Allegretto Wavelight Excimer
Alcon · Model 200Hz Allegretto Wavelight Excimer
WaveFront Optimization: Customized treatment based on the unique characteristics of your eye. Larger Treatable Area: The treatment affects a larger area of the eye than most lasers to reduce common side effects such as halos. Perfect Pulse Technology: Small laser pulses are applied in rapid succession to reshape the cornea while maintaining natural (or close to natural) curvature and a smooth surface to the cornea (thus avoiding spherical distortions). A Closed Loop Energy Control system regulates the intensity of the laser beam throughout the surgery and ensures depth errors of less than 1.5 microns. Pulses are offset so overlaps occur one in every five times, markedly decreasing thermal effects on your eye. Active Eye Tracker (a component of PerfectPulse): Synchronously tracks the Allegretto Wave in real time during the procedure to ensure the highest possible accuracy. An automatic centering feature facilitates centered ablations and a the Closed Loop Tracking mode double checks the location of the eye before each pulse of the laser. In cases of abberrant eye movement, the active eye tracker responds in less than 8ms.
Key tips
- ·Verify true laser output with an external power meter, not the console readout - the display drifts independently of real delivered energy.
- ·Never bypass a door interlock, key switch, or footswitch safety to finish a treatment - laser safety interlocks are not optional.
- ·Most low-output complaints trace to the delivery fiber or handpiece, not the laser source - inspect and swap those first.
- ·Intermittent mid-treatment shutdowns are usually cooling-related - check coolant level and flow before suspecting the diode or lamp.
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.
No or low laser output
HighSymptoms: Weak or no output at the delivery device, treatment ineffective, power not reaching the set value.
Root cause: Laser module / lamp / diode-bar ageing, a damaged delivery fibre / handpiece / applicator, or a driver / power-supply fault.
Cooling / thermal shutdown
HighSymptoms: Unit shuts down after a period, over-temperature or low-flow alarm.
Root cause: Chiller / TEC fault, low or contaminated coolant, a failed pump, or blocked airflow.
Delivery fibre / handpiece / applicator fault
MediumSymptoms: Burn marks at the tip, high loss, intermittent output, applicator not recognised.
Root cause: Damaged or contaminated fibre / applicator / connector.
Skin-cooling / contact-cooling fault (aesthetic)
MediumSymptoms: Skin cooling not delivered, cooling / cryogen alarm.
Root cause: Contact-cooling / cryogen supply, a valve, or the tip.
Footswitch / interlock / key fault
MediumSymptoms: Laser will not fire, key / interlock / footswitch error.
Root cause: Footswitch, door interlock, or key-switch fault.
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.
Laser module / lamp / diode bar
Power re-calibration required after replacement.
Class Periodic replacementRel. cost $$$$R&R Expert-level
Delivery fibre / handpiece / applicator
Class Frequent wear itemRel. cost $$$R&R Fairly easy
Chiller / TEC components & coolant filter
Class Periodic replacementRel. cost $$$R&R Difficult
Contact-cooling tip / cryogen valve (aesthetic)
Class Periodic replacementRel. cost $$R&R Moderate
Footswitch
Class Periodic replacementRel. cost $$R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Laser module / lamp / diode bar Power re-calibration required after replacement. | Periodic replacement | $$$$ | Expert-level |
| Delivery fibre / handpiece / applicator | Frequent wear item | $$$ | Fairly easy |
| Chiller / TEC components & coolant filter | Periodic replacement | $$$ | Difficult |
| Contact-cooling tip / cryogen valve (aesthetic) | Periodic replacement | $$ | Moderate |
| Footswitch | Periodic replacement | $$ | Fairly easy |
Relative cost: $ lowest · $$$$ 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.
- ·Laser output power verification against a calibrated external power meter
- ·Cooling-system check: coolant level, flow rate, and filter / heat-exchanger condition
- ·Delivery-system inspection: handpiece, delivery fiber or articulated arm, and output optics
- ·Interlock, key-switch, emergency-stop, and footswitch function test
- ·Beam-alignment and optical-path check per the service manual
- ·Annual full PM and electrical safety test
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
- Measure output at the delivery device with a laser power meter against the setting.
- Fit a known-good delivery fibre / handpiece / applicator.
- Confirm the cooling system runs and coolant is at level and clean.
- Check the key, interlock and footswitch are satisfied.
- Escalate a confirmed laser-module or driver fault to the OEM; recalibrate power after any module work.
Symptom: Thermal shutdown
- Confirm the cooling fans / pump run and airflow is clear.
- Check the coolant level and replace the coolant filter.
- Let the unit cool and restart.
- Clean the air filters / vents.
- Monitor for recurrence during a treatment.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating rooms and surgical procedure suites
- Dermatology and medical-aesthetic clinics
- ENT, gynecology, and specialty procedure rooms
- Outpatient surgical centers
Documents & Manuals
No documents available for this device yet.
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
Observed 'central islands' in patients following custom myopia laser procedures using the LADAR6000 Excimer Laser. (On May 11, 2007, Alcon notified consignees that the device software programs for CustomCornea Myopia and CustomCornea Myopia with Astigmatism of the device would be deactivated)
- RECALL
Alcon has identified a software error associated with the use of the Measuring Mode (ruler tool) on the LADARVision4000 Excimer Laser Systems. Use of this feature after alignment of the horizontal reference line will negate compensation for cyclotorsion on CustomCornea procedures, possibly adversely affecting clinical outcomes.
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