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Summary of Contents for oti OCT
- Page 1 OCT/SLO Dual Channel Imaging System Service Manual Model-B • Version: V 4 • September 2005 • Ophthalmic Technologies Inc. 37 Kodiak Crescent, Unit 16 Phone: 1-416-631-9123 Toronto, Ontario M3J 3E5 CANADA Fax: 416-631-6932 www.oti-canada.com info@oti-canada.com...
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Page 2: Table Of Contents
OCT/SLO SERVICE MANUAL Version V.4 Table of Contents • Introduction • Description • Specifications • Set Up & Maintenance • Clinical Set Up 10-14 • Image Capture and I/O Boards (PC) • Initialization Process • Parts – Replacement 17-21 • Procedures and Warning •... -
Page 3: Introduction
OCT image. As both the confocal fundus (retinal surface) image and the OCT images are generated through the same optics at the same time, they are displayed simultaneously on the computer screen and are pixel to pixel correspondent. - Page 4 OCT/SLO SERVICE MANUAL Version V.4 Another choice allows the user to produce successive intra-sections of the OCT and the Confocal Ophthalmic image. In the C-scan regime, the OCT/SLO system can also be switched into a fast regime of operation which allows collection of a sequential stack of images at different depths to provide a Topographic Map.
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Page 5: Description
SLD light source through the same optics and therefore they are pixel to pixel correspondent. The OCT/SLO software runs on Windows XP, and uses the features of the Windows interface to direct the operation of the system and maintain patient records, permitting a user-friendly environment for clinical applications. -
Page 6: Specifications
Longitudinal and Coronal (Depth) Scan Range: Variable 0.1 – 6.0mm. FUNDUS IMAGING Purpose: Confocal Fundus image for alignment, orientation and registration of the OCT image and the topographic maps and for diagnostic purposes Signal Type: CCD image and Confocal Ophthalmoscope. Field of View: up to 25°... - Page 7 OCT/SLO SERVICE MANUAL Version V.4 ELECTRICAL Imaging System only: Single phase: 100V ~ systems: (±10%), 3.5A 115V ~ systems: (±10%), 2.6A 230V ~ systems: (±10%), 1.3A Total Power requirements and Power consumption for: Imaging system, PC computer, LCD monitor and Motorized Table: 100V ~ : (±10%), 12.0A 1KVA...
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Page 8: Set Up & Maintenance
Any oily smudges or major dust on the ocular lens will reduce the quality of the OCT and SLO images. To clean the lens you may user a Kodak (or other) “lens cleaning paper”... - Page 9 Moving the OCT/SLO system: If the unit has to be moved to a new location, the user should contact OTI or its official representative to arrange the packing and re-installation of the system.
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Page 10: Clinical Setup
OCT/SLO SERVICE MANUAL Version V.4 Clinical Setup: System Description – Full View Flexmount- Chinrest external fixation light Chinrest height adjustment Joystick For Optical Head height & position control Motorized Table Height adjustment control Chinrest Power Computer Keyboard and Supply tray The Keyboard Tray and the Computer shelf can be installed on either side of the motorized table. - Page 11 OCT/SLO System. Any installation by other than OTI personal or OTI trained personal will void the system Warranty. The system should be setup in a room with air conditioning or at least a stable ambient temperature. The system will be delivered in several parts;...
- Page 12 OCT/SLO SERVICE MANUAL Version V.4 Cables: P 6110, P 6023 P 20 connects to and Internal Optical Head / Monitor Chin Rest connect to (back) PC Internal LCD Monitor connector Monster Cable (back) PC Connections from the Chin Rest to the rear of the PC are: •...
- Page 13 OCT/SLO SERVICE MANUAL Version V.4 Other Connections from or to the Chin Rest are: • OCT/SLO Power Supply connector • Monster Cable Connector P20 connects to the Optical Head/Chin rest • Chin Rest Power connecting to Chin Rest power supply (allows chin rest Up &...
- Page 14 OCT/SLO SERVICE MANUAL Version V.4 Connections bottom of the Optical Head /Chin Rest P 20 connector Optical Head Power Supply connector...
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Page 15: Image Capture And I/O Boards (Pc)
OCT/SLO SERVICE MANUAL Version V.4 Image Capture and I/O Boards (PC) NI I/O Board NI Image Capture Board Connecting Cable - I/O Board to Capture Board... -
Page 16: Initialization Process
OCT/SLO SERVICE MANUAL Version V.4 Initialization Process: After assembly is completed, the system should be powered up and ran to check initialization. Please follow the steps below : 1. Power “ON” machine, check all cables are attached and boot up the computer (Initialization program should run automatically after login). -
Page 17: Parts Replacement
Parts Replacement: Replacement of any of these parts must be performed by the manufacturer trained personnel. OTI will not be responsible for any work or replacement of parts performed by any person other than OTI personnel. The Replaceable parts in the system are: •... - Page 18 OCT/SLO SERVICE MANUAL Version V.4 X,Y Scanners X,Y Scanners Controller Board Observation CCD Camera & assembly...
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Page 19: Safety
OCT/SLO SERVICE MANUAL Version V.4 Fixation Mini LCD Assembly Optical Head Interface Board & Safety Board SLO Detector... - Page 20 OCT/SLO SERVICE MANUAL Version V.4 Stages Controller Board X,Y Scanners Controller Board SLO Detector SLD Pilot 4 Controller Detector & Electronics Main Ref. Stage...
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Page 21: Warning
OCT/SLO SERVICE MANUAL Version V.4 Procedures Warning Generally all the following procedures are performed with all 3 parts of the upper covers removed.. Great care must be undertaken when removing or replacing the covers as many problems can be started simply by adjustment of the covers. Specific problems to look for when replacing the covers are: •... - Page 22 OCT/SLO SERVICE MANUAL Version V.4 Replacing Scanners Tools required: M3 and M4 hex screws and allen keys, spare XY scanner set, PC and software. Service password. Part 1, Replacement 1. REM: scanners are matched to individual driver boards and matched to axes, do not mix up.
- Page 23 OCT/SLO SERVICE MANUAL Version V.4 Protocol for Replacement of MFN stage Axis 3/4 Tools required: Crosshead screwdriver, Metric Allen key set M2-M6, spare MFN stage, cutters and cable ties. In all cases, beware of damage to fibres and grease marks on glass surfaces, lenses and any other optical parts.
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Page 24: Alignment Jigs
OCT/SLO SERVICE MANUAL Version V.4 Protocol for Replacement Mini-LCD Tools required: Large Crosshead screwdriver, spare Mini-LCD assembly, monitor and alignment JIG. 1. Attach the mini-LCD alignment JIG to the lens barrel of the machine. The LCD- alignment jig should be attached to a monitor. - Page 25 OCT/SLO SERVICE MANUAL Version V.4 Protocol for Alignment of Observation CCD Camera Tools required: Crosshead screwdriver, camera alignment JIG. The upper cover should be removed, all 3 parts. 1. Attach Camera alignment JIG to lens barrel. 2. Move external chinrest illuminator to 'backlight' the opaque target on the JIG assembly.
- Page 26 1. Write down ‘Current Limit’, ‘Drive Current’, ‘Thermistor’ and ‘PD monitor’ settings from PILOT to be replaced when on (if possible). If these values are not available, necessary values may be obtained from OTI. 2. Switch off power to PILOT.
- Page 27 For this measurement, a range of focusing positions may be tried at a zoomed scanner setting and running longitudinally. If the measured value differs by that expected from either the previous current limit setting or 700 microwatts by more than 10% inform OTI immediately.
- Page 28 +/-15V supply, or miss-adjustment of the SYM (symmetry) potentiometer on the current OCT electronics box. This may happen when the voltage is switched from 120V to 100V on the isolation transformer. An earlier optical cause reported should now be solved.
- Page 29 • OTI will be only responsible to performance and safety of the system if the replacement parts are provided and inspected by OTI. Replacement of any parts of the system with parts not provided by OTI will void any warranty as offered by manufacturer - OTI.
- Page 30 OCT/SLO SERVICE MANUAL Version V.4 JIGS for Setup and Alignment Jig for LCD Alignment Jig for Image Calibration Jig for Camera Alignment...
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Page 31: Wiring Diagrams
OCT/SLO SERVICE MANUAL Version V.4 OCT/SLO Wiring Diagrams S1051A0 Electrical Schematic... - Page 32 OCT/SLO SERVICE MANUAL Version V.4 S1051A0 Interface Board Drawing...
- Page 33 OCT/SLO SERVICE MANUAL Version V.4 S1051A0 Optical Head Power Supply Drawing...
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