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Service Attenuator - The service attenuator is inserted into the beam path to attenuate the
beam before it enters the fiber focus assembly. This prevents damage to the attached fiber
alignment detector as the system is fired to do the fiber focus alignment. It is operated by
SW4 on the Controller PCB inside the unit accessible to the service engineer. The system will
operate in user mode if the service attenuator is left in the beam path, although less than 1% of
pulse energy will exit the laser making the laser unusable. Reflected energy is directed into a
water cooled beam dump.
Safety Shutter - Blocks the treatment beam path when de-energized.
If the laser is fired with safety shutter closed (during autocal), all energy is directed
into a water cooled beam dump.
Aiming Beam Diode, Folding Mirror, and Combiner Optic - Aiming beam is provided by a 650
nm diode laser. The user can select high, low, or medium intensity; or turn the aiming beam
off. The folding mirror and combiner are adjusted to place the aiming beam coaxial with treat-
ment beam.
Fiber Focus Lens - Focuses the beam into the end of the fiber to approximately 260µm diame-
ter spot.
Blast Shield - Protects the fiber focus lens from debris ejected from the proximal end of the
fiber in the event of a fiber failure.
Delivery Fiber - A number of delivery fibers are available for use with the VersaPulse Power-
Suite, each providing features suiting it to certain applications, such as orthopedic, endoscope,
laparoscope, laser assisted disk surgery, etc.. Most fibers are designed for a single use and are
not reusable.
Software (4.7) - Software instructions are provided for the microprocessor to operate the system in
response to user inputs. It also provides instructions for the firmware (i.e., EPLDs) in the monitoring
and responding to any potential unsafe condition. The software is stored in an EPROM and in the
EPLDs on the Controller PCB. Software upgrades can be accomplished by replacing the software
EPROM and/or reprogramming the EPLDs. Different EPLD versions are required for different Ver-
saPulse Powersuite models.
System configuration (i.e., max. power, wavelength, and etc.) are determined by the EPLDs.
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