The LIGHTLas SLT Deux-V is a sophisticated ophthalmological laser system designed for Selective Laser Trabeculoplasty (SLT) and YAG laser procedures, with an added capability for Vitreolysis. This combination system provides a versatile platform for various anterior and posterior segment treatments.
Function Description:
The device integrates two primary laser modalities: SLT and YAG.
- Selective Laser Trabeculoplasty (SLT): This mode is used for treating open-angle glaucoma by selectively targeting pigmented cells in the trabecular meshwork, improving aqueous humor outflow and reducing intraocular pressure.
- YAG Laser: This mode is typically used for posterior capsulotomy (after cataract surgery) and peripheral iridotomy (for narrow-angle glaucoma). The Deux-V model specifically highlights its capability for Vitreolysis, which involves using the YAG laser to vaporize vitreous opacities (floaters) that impair vision.
The system is designed for ease of use, featuring a quick start guide that outlines the setup and operational procedures. It includes controls for adjusting laser parameters, magnification, and illumination, ensuring precise and safe treatment delivery.
Important Technical Specifications (Inferred from Controls and Features):
- Laser Types: SLT and YAG.
- Energy Settings: Adjustable for both YAG and SLT modes (12a and 12b). The energy reading (13) allows the user to view adjusted parameters.
- Offset (YAG mode only): Adjustable from -500 to +500 (11), allowing for precise focusing relative to the target, crucial for anterior or posterior offsets.
- Pulse Settings: Configurable for 1, 2, or 3 pulses per laser shot (16), offering flexibility in treatment delivery.
- Magnification: Adjustable via a knob (9) to suit different procedural requirements and enhance visualization.
- Illumination: Features adjustable intensity (Step 7) and a "Boost" function (Step 6) for sudden increases in illumination during treatment.
- Safety Features: Includes an emergency switch (Step 3) that must be unlocked for the system to power on, and a test button (14) to fire the laser with the shutter closed, allowing for safe energy output verification.
- Counter: A total counter (17) tracks the number of shots and total energy used, which is important for documentation and monitoring. A reset button (18) is available for the counter.
Usage Features:
The device is designed for a streamlined workflow, as indicated by the quick start guide:
- Power On: The table, which powers the lasers, must be turned on first using the on-switch (Step 1).
- Table Height Adjustment: The table height can be adjusted using UP and DOWN arrows, ensuring ergonomic positioning for the operator (Step 2). A green light indicates the system is ready for height adjustment.
- Emergency Switch: A crucial safety feature, the emergency switch must be turned counter-clockwise until it pops out to unlock the system and allow power-on (Step 3).
- Slit Lamp Activation: The integrated slit lamp is turned on with a key (Step 4), providing the necessary visualization for procedures.
- Laser Power Activation: A dedicated button activates both YAG and SLT lasers, initiating a self-calibration process (Step 5).
- Illumination Control:
- Intensity Adjustment: A knob allows for gradual adjustment of illumination intensity (Step 7).
- Boost Function: A "Boost" button provides a sudden increase in illumination, useful during specific treatment phases (Step 6).
- Arm Rest Adjustment: The arm rest height can be adjusted for operator comfort by loosening a black knob, adjusting, and then tightening. It can also be moved to the opposite side or removed entirely (Step 8).
- Mode Switching: A switch allows the operator to toggle between YAG and SLT modes (10).
- Parameter Setting:
- Energy settings for YAG (12a) and SLT (12b) are independently adjustable.
- Offset for YAG mode (11) can be precisely set.
- Pulse settings (16) can be configured.
- The "Set" button (15) changes the laser from Standby to Treat mode once desired parameters are established.
- Monitoring: The energy reading (13) displays current parameters, and the total counter (17) tracks shots and energy.
Maintenance Features (Inferred):
- Self-Calibration: The system performs self-calibration upon laser power activation (Step 5), suggesting automated internal checks and adjustments to maintain accuracy.
- Test Button: The test button (14) allows for regular verification of laser output energy without firing the laser into the patient, which is a key aspect of routine maintenance and safety checks.
- Counter Reset: The reset button (18) for the total counter implies that usage data can be cleared after procedures or for new patient records, which is useful for tracking device longevity and service intervals.
Overall, the LIGHTLas SLT Deux-V is presented as a user-friendly, precise, and safe laser system for a range of ophthalmic treatments, emphasizing its dual SLT/YAG capabilities and vitreolysis functionality.
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