SCHWIND ESIRIS User manual

EXCIMERLASER
ESIRIS
SERVICE MANUAL
Schwind GmbH
Mainparkstrasse 6-10
D-63801 Kleinostheim

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INDEX PAGE
1. SECURITY OF DEVICE (LASER BEAM) ...........................................................................................5
GENERAL...................................................................................................................................................5
Alarm Shields and Type Shield............................................................................................................6
Accessible Beam Area.........................................................................................................................7
Protection Glasses...............................................................................................................................7
Working Gas........................................................................................................................................8
Gas containment:.................................................................................................................................8
DECLARATION OF MANUFACTURER (MPG)......................................................................................9
2. DESCRIPTION ..................................................................................................................................10
SPECIFICATION ........................................................................................................................................10
EXCIMER-LASER ......................................................................................................................................12
GAS SUPPLY............................................................................................................................................13
GASCONTAINMENT:..................................................................................................................................13
DELIVERY SYSTEM...................................................................................................................................14
MICROSCOPE AND ILLUMINATION ..............................................................................................................14
CONTROLLING..........................................................................................................................................15
PATIENT BED...........................................................................................................................................15
FOOT SWITCH..........................................................................................................................................15
RINSING OF OPTICAL BEAM DELIVERY SYSTEM .........................................................................................15
3. INSTALLATION REQUIREMENTS AND PREPARATIONS.............................................................17
WORKING ROOM......................................................................................................................................17
DIMENSIONS ESIRIS................................................................................................................................18
INPUT REQUIREMENTS .............................................................................................................................19
INSTALLATION AND ROOM PREPARATIONS FOR THE INSTALLATION...............................................................20
Minimum room dimensions (or room requirements)..........................................................................20
FLOOR REQUIREMENTS ............................................................................................................................20
INSTALLATION REQUIREMENTS .................................................................................................................20
Laser warning lamp ...........................................................................................................................21
Dimensions of boxes for the delivery.................................................................................................21
DELIVERY ................................................................................................................................................22
4. SOFTWARE DESCRIPTION BY SERVICE LOGIN..........................................................................23
MENU EXTRA ...........................................................................................................................................23
Menu Logfile ......................................................................................................................................23
Menu Parameter................................................................................................................................24
Distributor adress...............................................................................................................................25
MENU SERVICE........................................................................................................................................27
Menu Laser:.......................................................................................................................................29
Menu Scanner: ..................................................................................................................................35
Menu digital inputs / outputs..............................................................................................................36
Gascontainment:................................................................................................................................39
MENU ADJUSTMENT:.................................................................................................................................40
Laser:.................................................................................................................................................40
MENU TECHNICAL SECUTITY CHECK (TSC)...............................................................................................44
5. UNPACKING AND CONTROLLING.................................................................................................45
PUTTING INTO OPERATION........................................................................................................................46
WARRANTY..............................................................................................................................................47
6. DISMANTLING OF THE ESIRIS-LASERS .......................................................................................48

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REMOVAL OF GAS BOTTLES (PREMIX AND HELIUM) .....................................................................................48
6.2 UNPLUG ELECTRICAL CONNECTIONS OF PATIENT BED, CAN-BUS MODULE AND GASCONTAINMENT........52
6.3 DISMANTLING OF OPTICAL PARTS........................................................................................................54
Dismantling of microscope :...............................................................................................................54
Dismantling CCD camera tower: .......................................................................................................55
Dismantling Scanning mirror..............................................................................................................57
NITROGEN GAS CYLINDER................................................................................................................59
DISMANTLE MONITOR AND KEYBOARD..........................................................................................59
DISCONNECTION OF THE FLUENCE DETECTOR............................................................................61
DISMANTLING THE PATIENT BED ...............................................................................................................61
DISMANTLING LASER................................................................................................................................62
7 INSTALLATION OF THE ESIRIS-LASER .........................................................................................63
ASSEMBLING THE LASER ..........................................................................................................................63
ASSEMBLING OF THE PATIENT BED ...........................................................................................................63
ELECTRICAL CONNECTION OF PATIENT BED, CAN-BUS-MODULE AND GAS-CONTAINMENT.........................66
ASSEMBLING OF MONITOR AND KEYBOARD ...............................................................................................67
ASSEMBLING OF THE LASER BEAM DELIVERY SYSTEM...............................................................................68
Assembling the Microscope:..............................................................................................................68
Assembling CCD-Camera Tower ......................................................................................................69
Assembling the Scanner....................................................................................................................70
CONNECTION OF THE NITROGEN BOTTLE ..................................................................................................70
ASSEMBLING FLUENCE DETECTOR............................................................................................................71
CONNECTION OF THE GAS MANAGEMENT TO THE OPTEX LASER ................................................................71
8. ALIGNMENT OF THE ESIRIS...........................................................................................................73
APPENDIX.............................................................................................................................................74
APPENDIX A: CALCULATION BASIS............................................................................................................74
A1. Introduction..................................................................................................................................74
A2. Correction of Myopia...................................................................................................................75
APPENDIX B: BEAM DELIVERY SYSTEM.....................................................................................................76
B1. Optical System............................................................................................................................76

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1. Security of Device (Laser beam)
General
The SCHWIND ESIRIS is working with a pulsed UV-Laser. The Laser belongs to
class 4, which is the one with the highest danger potential. In any case, exposition of
eye or skin through direct or scattered laser beams has to be avoided. A professional
instrument maintenance - done in the planned intervals - secures that unintended
beams can not be exposed of the unit.
Opening of the device is only allowed through trained technicians. All persons,
assisting the treatment or attending the procedure have to be informed about danger
potentials and have to wear protection glasses.
Besides the high-performance laser, the SCHWIND ESIRIS uses three diodelasers
as positioning and fixation device. The output of the fixation laser is below 10 µW.
Therefore it belongs to class 1, which allows an undefined exposition time of the eye.
The positioning lasers are used to adjust the exact working distance to the corneal
surface. Their output is 50 - 100 µW. As the beams are aimed in a angle to the eye,
an influence at the retina is impossible.
Warnings Laser beam
The laser emits high-performance beams:
Wave lengths: 193 nm
Pulse energy: max. 8 mJ
Energy density: 800 mJ/cm2
Laser beams with these data are potentially dangerous, but in our case, possible
danger is minimised through some details:
•the beam diverges after passing the ablation area, so only in this area a high
energy density exists.
•the beams are partially absorbed in the air
•the cornea does not reflect beam during treatment
These effects reduce the energy density of the beam quickly with growing distance to
the working area, which is about 280 mm under the beam output opening. In spite of
this, the following warnings have to be followed for a safety use: