Femto LDV Surgical Laser
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Femto LDV Surgical Laser

Femto LDV Surgical Laser
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Femto LDV Surgical Laser - Ziemer:
Ziemer's FEMTO LDV, the first compact, mobile femtosecond surgical laser, has been conceived to provide a versatile, powerful platform for a wide spectrum of applications in corneal surgery. The basic system addresses the demand of refractive surgeons for an "all-Laser LASIK" capability that is consistent with an efficient LASIK work-flow. The solution by Ziemer is based on an all-new femtolaser design concept that seamlessly integrates into LASIK procedures and corneal surgery. 
Femtolaser surgery with convincing clinical advantages:
  • Smooth surface of stromal bed.
  • Smooth edges for optimal flap closure.
  • Thin flaps of even thickness.
  • Rapid healing and visual recovery.
  • Excellent visual outcomes.

Product Profile

Product Overview

Due to its unique hand-held laser delivery system, which is attached to an easily maneuverable articulated arm, patients can be treated on the patient bed of the excimer laser and do not have to be relocated between flap creation and ablation procedures. The surgeon can perform and control the entire procedure from a single working position, without having to move about or changing microscopes. This revolutionary design concept entails several major advantages in clinical practice:

As the FEMTO LDV’s laser energy is deployed from a hand-piece, which is placed on the patient’s eye and manually controlled by the surgeon, a procedure results that resembles the operation of a traditional microkeratome. The sterile single-use parts of the hand-piece, which are provided in convenient, assorted ProcedurePacks, are assembled before the procedure is started and before the patient’s eye is touched. Similarly, the components are disassembled after the complete (usually bilateral) procedure is completed.
For fixation, the hand-piece incorporates a vacuum suction ring, which is available for a range of flap diameters from 8.5 to 10 mm. The ring is mounted over the applanation window on the underside of the handpiece.  Positioning, applanation, and suction are controlled visually through the handpiece observation window and the excimer laser's microscope.

Procedure control with the touchscreen
All procedure parameters, as well as procedure progress, are controlled via  graphical user interface and touchscreen. For LASIK procedures in a routine mode of operation, the surgeon only needs to select suction settings and hinge dimensions.
Flap control
Flap dimensions are computer controlled and are set through an intuitive set of parameters via a user-friendly graphical user interface and touchscreen. Hinge position, hinge angle and width, flap diameter, and flap thickness can be selected by the surgeon to create a customized flap optimized to bulbus dimensions and surgical requirements. There are no parts moving on the cornea; hence less trauma to the epithelium than with mechanical microkeratomes.
Procedure status control
The procedure monitor displays information about the status of principal system modules and about progress of the cutting procedure. Suction and laser can be activated by touching on-screen buttons or by depressing the foot-pedal.
Suction Control
Suction is maintained by a computer controlled vacuum system that allows to precisely set the desired suction level, and maintain it throughout the entire procedure.  Should the vacuum fall below a pre-set level during the procedure, a safety interlock will interrupt the cutting procedure. At the end of the procedure, suction can be automatically released.

Tissue separation

A novel, proprietary laser cutting process developed specifically for Ziemer’s FEMTO LDV system provides for effortless, gentle tissue separation with minimal tissue bridges. The process generates minuscule bubbles that help visualize the flap edge for easy opening. The bubbles disintegrate instantly when the flap is lifted. Consequently, the excimer laser ablation process may be initiated immediately after completion of the flap cutting process, saving process time and minimizing exposure of stroma.

The process creates a smooth edge with approx. 45° angulation. This edge geometry, which resembles edges created with mechanical microkeratomes, ensures a tight, dynamic fit of the flap into the incision, and helps avoid epithelial ingrowth.

Procedure Control

Tactile and visual control
The Da Vinci device delivers a precisely controlled vacuum generated by a computer-controlled vacuum system which employs the proven vacuum control technology of the AMADEUS® micro­keratome (developed by SIS Surgical Instrument Systems Ltd, another Ziemer Group company). Optimized vacuum level and short vacuum time ensure minimal stress to the globe.
The unique hand-piece of Ziemer’s FEMTO LDV system gives the surgeon full tactile and visual control and guidance while observing the treatment field through the excimer laser’s built-in operating microscope. For bi-lateral procedures, the hand-piece is simply turned 180 degrees.