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Valon Multispot Laser User Manual

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User's Manual
Document No: 3500151-N
08/2012

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Summary of Contents for Valon Multispot Laser

  • Page 1 User’s Manual Document No: 3500151-N 08/2012...

  • Page 2: Table Of Contents

    Table of Contents 1. Introduction 2. Technical Specifications 3. Terms of Use 4. Warranty and Service 5. System Description 5.1. Free standing unit Valon 5.2. PC and Touch screen 5.3. Foot switch 5.4. Slit Lamp Adapter 5.4.1. Revolver 5.5 Smart Wheel 5.6 Laser Aperture...
  • Page 3 Table of Contents 6.2.10. Lens Selection 6.2.11. Setup 6.2.12. Service 6.3 Instructions for After Use 6.3.1. Turning off the system 7. Patterns 7.1. Square 7.2. Sector 7.3. Circle 7.4. Arc 7.5. Line 7.6. Spot repetition 8. Safety 8.1. Emergency Stop Button 8.2.
  • Page 4 Table of Contents 12.1. System name plates and serial numbers 12.1.1 Valon 12.1.3. Eye safety filter 12.2. Warning symbol definitions 13. Disposal of Waste 14. Electromagnetic compatibility User Manual Revision history...

  • Page 5: Introduction

    1. Introduction Valon Multispot Laser is a semi-automated laser system Caution! that enables fast and effective treatment of retinal dis- Valon should eases. Connected to most popular microscopes it offers only be used variable functions for transpupillary laser photocoagulation. for treatment...

  • Page 6: Technical Specifications

    2. Technical Specifications Treatment wavelength 532 nm Spot size (50 μm,) 100 μm, 200 μm, 300 μm and 400 μm Slit Lamp Integrateable to various up- pert light source type slits- lamps e.g. Haag-Streit BM and BQ and CSO SL 990 Laser Frequency doubled Nd-YVO 532 nm...

  • Page 7: Terms Of Use

    Functional purpose of the device (intended use) equipment is inteded for use The Valon-laser proposes a radically different way to per- by professional form photocoagulation. A concept introduced by Meyer- healthcare per- Schwickerath for the treatment of diabetic retinopathy in sonnel only the 1950s.
  • Page 8 • Iridotomy • Iridectomy • Trabeculoplasty in angle closure and open angle glau- coma Valon is solely intended for treating the lesions mentioned above. Complications (reasonable foreseeable) Properly conducted laser photocoagulation rarely causes serious complications. The adverse effects of PRP include...
  • Page 9 3. Terms of Use Explanation of any novel features Valon delivers patterns of several laser spots with a pulse duration that is five times shorter than that of a conven- tional laser. The Valon method of photocoagulation has the following advantages when compared to a conventional, single spot treatment: •...

  • Page 10: Warranty And Service

    4. Warranty and Service The warranty of Valon is 12 months for the entire system excluding fiber and optics. Painted surfaces are not cov- ered by warranty if the system is left in direct sunlight or subjected to other UV radiation for long periods of times.

  • Page 11: System Description

    5. System Description 5.1. Free standing unit Valon Warning! Handle with The Valon Laser Free Standing Unit (STA) consists of the extreme care trolley with the computer, the laser console and the elec- when moving tronics of the device. The monitor with touch screen is fixed the system to to the trolley.

  • Page 12: Pc And Touch Screen

    5. System Description 5.2. PC and Touch screen Warning! Never use the The system is equipped with a medical grade PC, medical PC to any oth- grade touch screen and suitable programs. Some specifi- er than treat- cations are presented below. ment purposes or connect to PC specifications...
  • Page 13 5. System Description Screen settings The basic screen settings are adjusted with the buttons on the right side panel of the monitor. To enter the setting mode press the Menu button (1) and choose the setting you want to change by the Select button (2). Use the arrow buttons (3) to adjust.
  • Page 14 5. System Description Monitor connections The connections of the monitor are presented in image 1. (1) Power cable (2) Monitor cable (3) USB-cable for touch screen The connections the monitor (viewed from below)

  • Page 15: Foot Switch

    If the foot switch stays pressed after the pattern is drawn, the system does not continue the coagulation. To produce a new laser figure, the foot switch must be released and repressed. The foot switch is solidly connected to the laser console box. Connecting the foot switch: Valon STA...

  • Page 16: Slit Lamp Adapter

    5. System Description 5.4. Slit Lamp Adapter Warning! Sharply bend- The slit-lamp adapter contains the scanners that deflect the ing or improp- laser beam delivered from the laser console by an optical erly securing fiber. The SLA case envelopes the focusing optics and the the fiber may scanner electronics.

  • Page 17: Smart Wheel

    5. System Description 5.5 Smart Wheel Note The applica- The smart wheel is a manual control button that allows the tions of the user to change figure, figure size, figure position, figure smart wheel orientation and power during the treatment without having are presented to use the touch screen.

  • Page 18: Optical Beam Path

    5. System Description 5.7. Optical beam path 5.7.1. Laser Green power laser generator 532nm Green beam path 532nm Collimating lens Red aiming beam path 635nm Red aiming beam laser 635nm Beam splitter Coupling lens Fiber connector Fiber of delivery device Output beam 532 nm + 635 nm aiming beam Green power laser measuring diode Frequency doubling crystal...

  • Page 19: System (Normal)

    5. System Description 5.7.2. System (normal) Laser unit Scanner No 2 Fiber Focusing lens Collimating lens Slit lamp Scanner No 1 Beam splitter Slit lamp adapter Slit lamp optics Transferring lenses Slit lamp mirror...

  • Page 20: Accessories

    In Haag-Streit BQ (left) and CSO 990 (right) the ring- The plates shaped filter is located between microscope and binocu- may become lars. scratched 5.8.2. Eye safety goggles A pair of goggles (OD > 5 for 532nm) is delivered with each Valon unit.

  • Page 21: Cables

    5. System Description 5.8.3. Cables Warning! Use only the Cable Length Shielded Type cables that Power cable come with the Foot switch cable system. Other- wise the EMC Slit lamp power cabel performance Scanner cable of the system Smart wheel cable 1.7 m may be com- Spot size recognizion cable...

  • Page 22: Using Valon

    6. Using Valon 6.1 Before Use Warning! Never use 6.1.1. Ensuring the Basic Safety Valon if there is any doubt about the pres- ence of the eye safety filter Warning! Dot not re- move the eye safety filter under any cir- cumstances 1.

  • Page 23: Turning The System On

    6. Using Valon 6.1.2. Turning the System on Note If the screen • Plug the power cable into the electrical outlet is not active • Turn the system on by turning the key switch clockwise even though • The system starts automatically and the GUI of the prog-...

  • Page 24: Adjusting The Binocular Lenses

    6. Using Valon 6.1.3. Adjusting the Binocular Lenses Warning! In case the 1. Adjust the focus of one eyepiece by checking if the lenses are not focusing stick is seen in focus (laser is not active). If the adjusted, the...

  • Page 25: Using The Software

    6. Using Valon 6.2. Using the software 6.2.1. Graphical user interface (GUI) 1. When the computer is on, the GUI of the program ap- pears on the touch screen. 2. The black bar (1) on the top part of the menu shows the current laser status.

  • Page 26: Adjusting The Settings

    6. Using Valon 6.2.2. Adjusting the Settings (1) Pulse Duration Choose a setting for the duration of the laser pulse at Pulse Duration (1) by pressing the + and – buttons. Available set- Attention! tings are 10-30 ms for patterns and 10-650 ms for single The maximum spot.
  • Page 27 6. Using Valon (6) Figure Size / Radius Select the size of the figure at Figure Size (6). The size is displayed as the number of spots on one edge of the fig- ure. The available scale depends on the figure type. For arcs the figure size can be changed using smart wheel or by touching the pattern on the screen.

  • Page 28: Treatment Mode

    6. Using Valon 6.2.3.Treatment Mode When the laser is enabled, the pilot laser is active and draws the outline or shows all spots of the chosen pattern. The treatment laser is ready and controllable via foots- witch. Settings can be changed without disabling the laser by us- ing the touch screen or the smart wheel (see section 6.2.8).
  • Page 29 6. Using Valon (3) Outline / Spots Attention From Outline / Spots button (3) user can choose whether If the spot is the aiming beam shows the outline of the selected pattern not in focus or the spots of the selected pattern.

  • Page 30: Before Treatment

    6. Using Valon 6.2.4 Before treatment Attention! As the aiming Before treatment, it is essential to ensure the spot is in fo- beam passes cus and the pattern produced by the aiming beam matches down the same exactly to the figure on the GUI preview.

  • Page 31: Applications Of The Smart Wheel

    6. Using Valon 6.2.8. Applications of the Smart wheel 6.2.8.1. Changing the pattern Note! More on the • Press the button once to change to selection and another figure applications of • The figures change in the following the patterns...

  • Page 32: Adjusting The Orientation Of The Pattern

    6. Using Valon 6.2.8.4. Adjusting the Orientation of the Pattern Turn the smart wheel clockwise or counterclockwise to equivalently change the orientation of the pattern to suit the selected location. By turning the manual control button the physician can e.g.

  • Page 33: Changing The Power

    6. Using Valon 6.2.8.5. Changing the power The laser power can be changed by pressing the smart wheel buttons. To increase the power press right button and to decrease the power press the left button. When the power is changed with the smart wheel, it is shown by the aiming beam for 1 s.

  • Page 34: Treatment Information

    6. Using Valon 6.2.9. Treatment Information The Treatment Information window details the used treat- ment parametres: • The total number of coagulated spots • The number of spots coagulated with each spot size (as chosen from SLA, without lens magnification) and the percentage of all spots •...

  • Page 35: Lens Selection

    6. Using Valon 6.2.10. Lens Selection Select the proper contact lens to see the real spot size on the retina. The real spot size also affects the values of flu- ence and total treated area. Available lenses are presented below.

  • Page 36: Setup

    6. Using Valon 6.2.11. Setup Setup menu can be used for changing the settings of the smart wheel and language. The micromanipulator and power adjustement features available on the smart wheel can be turned off by unmark- ing the boxes in the upper section of the setup screen.

  • Page 37: Service

    6. Using Valon 6.2.12. Service The service window is meant only for trained service per- sonnel and it is therefore protected with a password.

  • Page 38: Instructions For After Use

    6. Using Valon 6.3 Instructions for After Use Attention! Make sure win- 6.3.1. Turning off the system dows has shut down before 1. Ensure the laser is disabled. turning the key 2. Turn off the software by selecting shut down from the switch! menu and then by pressing ok.

  • Page 39: Patterns

    7. Patterns The software enables the use of six different patterns and thereby makes the system multifunctional and flexible. It provides the ability to choose a pattern, pattern size and orientation of the pattern optimal for the target tissue. These settings can be changed both with the GUI by press- ing the +/- or by touching the pattern on the screen and with the smart wheel (see section 6.2.8).

  • Page 40: Square

    7. Patterns 7.1. Square The square pattern with 5 spots on the edge and the equiv- alent settings on the GUI. The available figure sizes are 1-5 for spot sizes (50 μm,) 100 μm and 200 μm and 1-4 for spot sizes 300 μm and 400 μm.

  • Page 41: Circle

    7. Patterns 7.3. Circle On circle mode the system emits a circle-shaped figure of laser spots. In this case the distance between all adjacent spots is equal. Available sizes are 1-4 for spot sizes (50 μm,) 100 μm and 200 μm and 1-3 for spot sizes 300 μm and 400 μm 7.4.

  • Page 42: Line

    7. Patterns 7.5. Line The available figure sizes are 1-7 for all spot sizes. 7.6. Spot repetition On single-spot mode the system emits repeated laser puls- es to the target tissue at a specified interval as long as the foot switch is pressed down. If interval is set to 0 the laser emits only one pulse.

  • Page 43: Safety

    8. Safety 8.1. Emergency Stop Button • The emergency stop button is situated on the front panel of the laser console above the key switch. • In case of an emergency you can shut down the system by pressing the button down.

  • Page 44: Eye Safety Instructions

    8. Safety 8.3. Eye Safety Instructions Warning! Never, under 8.3.1. Eye Safety Filter (OD > 5) no circum- stances re- The eyes of the operating physician are protected by the move the eye eye safety filter installed to the slit lamp. The filter ensures safety filter that all laser radiation coming through the binoculars has from the slit...

  • Page 45: Prevention Of Unauthorized Use

    8. Safety 8.5. Prevention of unauthorized use The Valon is designed for use by qualified physicians only. Ensure this by turning off the system and removing the key at the end of the treatment. 8.6. Requirements for the treatment room...

  • Page 46: Maintenance

    Avoid liquids near the monitor. Changing the Fuses The main fuses for Valon STA are placed next to the power cord. The values for fuses are presented below. Valon (230V):...

  • Page 47: Errors

    10. Errors This section presents the possible error message types that are shown to the user in case the program recognizes an error. The possible error messages are divided to five categories, that are specified below. All error codes are listed in the service manual.

  • Page 48: Non-Confirmable Errors

    10. Errors 10.2. Non-confirmable Errors In case a non-confirmable error message appears on the screen, a serious error has occurred and the entire system has to be shut down. A non-confirmable error message re- places the pattern preview and requests the user to press the OK button that shuts down the program.
  • Page 49 10. Errors It acts similarly to the case of a non-confirmable error: the laser is disabled, the buttons of the GUI are inactivated and the user is requested to press the OK button that shuts down the program. If the revolver somehow remains between two spot size modes or one of the reed switches of the spot recognition is defected, the system may not recognize any spots.

  • Page 50: Troubleshooting

    • Check whether the slit is correctly in focus on the fo- cusing stick. If the slit is in order contact Valon Lasers or local distributor’s service for help. For advanced slit lamp service contact your local Haag-Streit or CSO rep-...

  • Page 51: Aiming Beam Not Correctly Centered

    • If the error is confirmable, try fixing it and press confirm • Shut the computer down and restart it. • If the error message is still on the screen, contact Valon Lasers or local distributor’s service and declare the...

  • Page 52: System Labeling

    12. System Labeling 12.1. System name plates and serial numbers 12.1.1 Valon Label showing the serial number is located behind the console 12.1.3. Eye safety filter The label showing the serial number of eye safety filter is placed on the eye safety filter...

  • Page 53: Warning Symbol Definitions

    12. System Labeling 12.2. Warning symbol definitions The warning symbols of the system are defined in the fol- lowing arrays (see also next page). Eye safety filter declaration on the slit lamp. Eye safety filter declaration the slit lamp (other side) Emergency stop button The switch symbols at the I / O...
  • Page 54 The laser emission warning on the top bar of the GUI. The laser aperture warning is placed at the laser output on the slit-lamp mirror. The laser radiation warning is placed behind the con- sole. Valon is rated as class 4 laser.
  • Page 55 12. System Labeling 12.2. Warning symbol definitions The warning symbols of the system are defined in the array below. Door interlock Foot switch Laser power Laser pulse duration Interval between pulses (available only in single spot mode) Aiming beam...

  • Page 56: Disposal Of Waste

    13. Disposal of Waste The product contains electrical components and therefore cannot be disposed as normal waste. Different materials and components (plastic, metal, electronics..) should be taken apart and recycled/disposed in accordance with local regulations.

  • Page 57: Electromagnetic Compatibility

    Guidance and manufacturer’s declaration – elecromagnetic emissions Valon and Valon TT are intended for use in the electromagnetic environment specified below. The customer or the user of Valon and Valon TT should assure that it is used in such an envi- ronment.
  • Page 58 Guidance and manufacturer’s declaration – elecromagnetic immunity Valon and Valon TT are intended for use in the electromagnetic environment specified below. The customer or the user of Valon and Valon TT should assure that it is used in such an environment.
  • Page 59 Guidance and manufacturer’s declaration – elecromagnetic immunity Valon and Valon TT are intended for use in the electromagnetic environment specified below. The customer or the user of Valon and Valon TT should assure that it is used in such an envi- ronment.
  • Page 60 The Valon and Valon TT are intended for use in an electromagnetic environment in which radi- ated RF disturbances are controlled. The customer or the user of the Valon or Valon TT can help prevent electromagnetic interference by maintaining a minimum distance between port-...

  • Page 61: User Manual Revision History

    User Manual Revision his- tory Version B 12.6.2009 Taru Rummukainen Added p.53 disposal of waste Added p. 17 Accessories, cabless Version C 6.8.2009 Taru Rummukainen Added Page 31 lens selection Added Page 32 Turning off the system Version D 6.8.2009 Taru Rummukainen Update D Page 31 figure for treatment information Version E 18.12.2009 Updated Page 2 specifications and took off 50micron spot...
  • Page 62 Updated manual to include Valon TT Version L 23.11.2011 Updated manual to include Valon TT CSO Version M 19.3.2012 Separate manual for Valon TT and Valon STA New feature: Fixation light Update GUI images and text to reflect new features Version N 2.8.2012 Removed all references to LIO Version O 12.12.2012...

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