Sonomed E-Z Scan 5500+ Series Operator's Manual
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Sonomed E-Z Scan 5500+ Series Operator's Manual

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E-Z Scan
TM
5500+ Series
AB5500+ Combined
A-Scan / B-Scan
B5500+ B-Scan
Operators Manual
Sonomed, Inc.
A Subsidiary of Escalon Medical
1979 Marcus Avenue
Lake Success, NY 11042 USA
Tel 800-227-1285
516-354-0900
Fax 516-354-5902
www.sonomedinc.com
5550-A-1901-1C
0413

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  • Page 1 E-Z Scan 5500+ Series AB5500+ Combined A-Scan / B-Scan B5500+ B-Scan Operators Manual Sonomed, Inc. A Subsidiary of Escalon Medical 1979 Marcus Avenue Lake Success, NY 11042 USA Tel 800-227-1285 516-354-0900 Fax 516-354-5902 www.sonomedinc.com 5550-A-1901-1C 0413...
  • Page 2 Version 1 / Revision C Copyright © 2006 Sonomed, Inc. All rights reserved. Contents of this publication may not be reproduced in any form without the express written permission of Sonomed, Inc. Specification change privileges are reserved. Printed in USA on recycled paper.

  • Page 3: Table Of Contents

    Table of Contents TABLE OF CONTENTS Section 1 Introduction 1.1 SYSTEM DESCRIPTION 1.2 B-SCAN FEATURES 1.3 A-SCAN FEATURES 1.4 ACCESSORIES & OPTIONS Section 2 Getting Started 2.1 UNPACKING 2.2 SAFETY CONSIDERATIONS Terms as Marked on the Equipment Terms as Used in This Manual General Warnings General Cautions 2.3 SYSTEM SET-UP...
  • Page 4 Table of Contents 3.4 PATIENT PREPARATION Direct Contact Measurements Immersion Technique 3.5 PATIENT EXAMINATION Direct Contact Scanning/Automatic Mode Direct Contact Scanning in Manual Mode Water Immersion Technique Performing IOL Calculations Printing 3.6 IMAGE ARCHIVE 3.7 SOURCES OF ERRORS AND HOW TO 3-10 AVOID THEM Corneal Compression...
  • Page 5 Table of Contents Section 5 Maintenance and Service 5.1 ROUTINE MAINTENANCE System General Inspection Cleaning Storage Probe General Inspection 5.2 A-SCAN FUNCTIONALITY CHECK Sensitivity Test 5.3 TROUBLESHOOTING Electromagnetic Interference 5.4 WARRANTY 5.5 DISPOSAL Section 6 System Specifications PHYSICAL ELECTRICAL ENVIRONMENTAL INTERFACE DISPLAY PROBES...
  • Page 6 Table of Contents Appendices VELOCITY TABLES Appendix-1 TABLE OF IOL CONSTANTS Appendix-2 HAIGIS FORMULA INFORMATION Appendix-3...
  • Page 7 AC ADAPTER UNITED KINGDOM NORTH AMERICA EUROPE AUSTRALIA FOOT SWITCH AC ADAPTER PART NO. 9200-1604-1A CAUTION: TR EADLITE II LINEMASTER SWITCH CORP. WOODSTOCK, CT USA 15 VDC @ 2A VIDEO PRINTER JOYSTICK B-PROBE A-PROBE INSTRUCTION MANUAL STYLUS PEN E-Z SCAN 5500+...

  • Page 8: Introduction

    1285 (or in NY at 516-354-0900) at any time Selectable Compression Curves (Log, with questions or concerns regarding system use. Linear, and S-curve) Thank you for your trust in Sonomed to provide Zoom and Pan Controls for your ophthalmic imaging needs. Area and Distance Measurements 1 - 1...

  • Page 9: A-Scan Features

    Available information that is displayed on the screen when the print key is depressed. Several features help to distinguish the Sonomed E-Z Scan 5500+ series, including: Live A-Scan Display Gain Control Storage of Five (5) Scans for Later Review...

  • Page 10: Accessories & Options

    Touch Screen Stylus Black & White Video Printer Ultrasonic Coupling Gel * Use only those items supplied with the instrument or approved by Sonomed, Inc. Use of unapproved parts may damage the instrument or degrade performance.  5500+ Options available with the E-Z S...

  • Page 11: Getting Started

    Sonomed immediately to report the problem. WARNING statements identify conditions or practices that could result in personal injury or loss of life. 2 - 1...

  • Page 12: General Warnings

    Getting Started Section 2 GENERAL WARNINGS! SOMMAIRE DES MESURES DE Use only the AC Adapter that is supplied with SÉCURITÉ the system. (P/N: 9200-1604-XX) POUR VOTRE PROTECTION, S.V.P. lire ces To avoid explosion, DO NOT operate this instructions de sécurité complétement avant product in the presence of flammable gases or d’installer et de mettre sous tension ou d’opérer fumes.

  • Page 13: Connecting Accessories

    Section 2 Getting Started Afin d’éviter tout risque d’explosion ne pas utiliser ce produit en présence de produits SYSTEM SET-UP inflammable. L’opération d’un produit électrique dans de tel conditions constitue un CONNECTING ACCESSORIES risque d’explosion.  on a flat level surface. 1.

  • Page 14: Printer Set-Up

    “STORED DATA LOST” warning message will be displayed. Please contact Sonomed service department for further assistance. 3. If either LED does not illuminate or Main Screen does not appear, immediately power OFF the system and contact your local representative or Sonomed for assistance.

  • Page 15: Setting The Date And Time

    Section 2 Getting Started SETTING THE DATE AND TIME From Main Screen, select [ SET DATE ] key at the bottom of the screen (see Figure 2-1). Verify that the Enter Date and Time Screen appear on the display (see Figure 2-2). Figure 2-2 Set Date and Time Screen Display 2.

  • Page 16: A-Scan Operation And Clinical Use

    The resulting gain level in “dB” (decibels) will be displayed. IMPORTANT If a measure within 10.00 ± 0.1 mm cannot be Figure 3-1 Main Screen Display obtained, contact Sonomed service department for assistance. 2. Ensure the Calibration Screen appears. 3 - 1...

  • Page 17: System Set-Up

    A-Scan Operation and Use Section 3 It is recommended that calibration be performed 2. IOL Formula Selection. Within the User prior to obtaining measurements; however, the Data Screen, touch the [ FORMULA ] calibration mode may be skipped if so desired button to scroll through the different by touching any of the other menu buttons (ex: available IOL formulas.

  • Page 18: Entering Patient Information

    Section 3 A-Scan Operation and Use when finished entering patient ENTERING PATIENT INFORMATION information. Patient information including name, identification number, K readings, and eye to be WARNING  examined can be stored within the EZ-S The EZ-Scan assumes a keratometer index of memory.
  • Page 19 A-Scan Operation and Use Section 3 When Pseudophakic mode is selected, one of five different pseudophakic lens types PATIENT EXAMINATION (PMMA, Acrylic, Silicone-I, Silicone-II or a User “Custom” Lens) may be selected Following entry of user and patient information, touching the [ LENS ] key. The average A-scan measurements may be obtained.
  • Page 20 Section 3 A-Scan Operation and Use Once accepted, the scan pattern will be displayed on the screen; the axial length will be calculated and stored under “SCAN 1” in the upper center of the Measure Screen. The location of the key structures in the scan waveform will be indicated by flashing gate markers displayed above the waveform as well as a blinking red dot at the threshold...
  • Page 21 A-Scan Operation and Use Section 3 MANUAL MODE 3. Tissue Velocity. Ensure the appropriate tissue velocities are selected by pressing the [TVEL] key once the examination MODE user select Manual Mode has been selected. continuously pressing the [MODE] key until “Manual”...
  • Page 22 Section 3 A-Scan Operation and Use 4. Prepare Immersion Shell (see instructions to insure that no air bubbles have been provided with shell). Unscrew the probe trapped on the tip of the probe. handle and pull it away from the probe tip. Insert the probe tip into the shell, advancing 7.
  • Page 23 A-Scan Operation and Use Section 3 displayed above the waveform to indicate PERFORMING IOL CALCULATIONS the detected positions of the cornea, anterior lens, posterior lens and the retina.  uses the measurement data and The EZ-S selected IOL calculation formula to determine IMPORTANT and display appropriate IOL powers.
  • Page 24 Sonomed. Information regarding this software can be obtained by contacting the Sonomed Customer Service Department at 800-227-1285. To archive while in the A-scan Mode, press the [ARCHIVE] key while in the Measure Mode.
  • Page 25 A-Scan Operation and Use Section 3 scan under consideration with those of an optimal A-Scan pattern. SOURCES OF ERRORS AND HOW TO AVOID THEM Characteristics of an Optimal A-Scan are as follows: There are a few common errors which may occur when performing A-scans which deserve 1.
  • Page 26 Section 3 A-Scan Operation and Use EXAMINATION MODES Before performing an axial length measurement the user should always verify the operating mode (cataract, dense cataract, aphakic, pseudophakic or manual mode). Since this mode governs the manner in which the instrument evaluates an A-Scan pattern and the parameters the instrument will utilize in its calculations, mistakes and/or large numerical errors will be...
  • Page 27 Section 4 B-Scan Operation and Use Section 4 B-SCAN OPERATION AND CLINICAL USE  5500+ The B-Scan mode of the E-Z S allows for imaging of the eye and surrounding SYSTEM SET-UP tissue. After completion of scanning, a hardcopy may be obtained using the video printer supplied ENTERING USER INFORMATION with the system.

  • Page 28: Patient Preparation

    B-Scan Operation and Use Section 4 ENTERING PATIENT INFORMATION PATIENT PREPARATION Patient information including name, The patient should be seated in a comfortable, identification number and eye to be examined upright position preferably in an examination  memory. Only can be stored within E-Z S chair with a headrest.

  • Page 29: B-Scan Operating Controls

    Section 4 B-Scan Operation and Use Table 4-2 Menu Functions B-SCAN OPERATING CONTROLS MENU FUNCTION Select scanning mode: B-only, The operation of B-scan mode is controlled with MODE B/a or A/b the following soft key buttons and menus. On- screen directions appear, where needed, for Display Measurement menu: MEASURE when each soft-key is pressed...

  • Page 30: Soft-Key Descriptions

    B-Scan Operation and Use Section 4 SOFT-KEY DESCRIPTION Pressing [AREA] will cause a blinking cursor to appear on the display. Using the joystick, the user can position the cursor at a point where the measurement is to begin. Pressing [SET] will MENU enable the joystick to trace an outline around an object.

  • Page 31: External Controls

    Once this key is pressed a status message will be displayed. BRIGHT Sonomed Scan Viewer Software is available directly from Sonomed. Information concerning Pressing this key will cause [+] / [-] keys to this software can be obtained by contacting appear.

  • Page 32: Image Archive

    (REAR PANEL) downloading and viewing these images is also required and is available from Sonomed. VIDEO OUT: Information regarding this software can be obtained by contacting the Sonomed Customer Used to connect the EZ-scan to an external Service Department at 800-227-1285.

  • Page 33: Maintenance And Service

    Section 5 Maintenance and Service Section 5 MAINTENANCE AND SERVICE CLEANING ROUTINE MAINTENANCE  System: Periodic cleaning of the EZ-S enclosure with a soft cloth is all that is usually The maintenance described below should be required to keep the system looking new. ...

  • Page 34: Storage

    A-probe is operating. IMPORTANT 5. Carefully examine the probe tip for any If a measure within 10 ±0.1mm cannot be chipping or rough edges which may injure obtained, contact Sonomed service department the cornea. for further help. 5 - 2...

  • Page 35: Sensitivity Test

    A-SCAN SENSITIVITY TEST In general this is due to a loss of sensitivity in Sonomed A-scan probes are constructed to be the Probe. If this is the case the Probe should reliable products which may be used for several be replaced.

  • Page 36: Troubleshooting

    If it is deemed necessary to return the system WARNING and/or probes to Sonomed for service, a To avoid personal injury, do not open system – return authorization will be issued. Please there are no internal user-serviceable parts.

  • Page 37: Warranty

    This warranty is strictly limited to replacement or repair of the part which is found to be defective in material or workmanship. At the option of Sonomed said part shall be replaced or repaired free of charge F.O.B. our factory by Sonomed.

  • Page 38: Physical

    Section 6 Specifications Section 6 SPECIFICATIONS PHYSICAL PROBES Dimensions: B-Scan Probe: Mechanical sector scan Width 239 mm 9.4” 10 MHz ± 10% -Frequency Depth 225 mm 8.9” -Focal Length 24 mm. ± 2mm. Height 71 mm 2.8” A-Scan Probe: Direct Contact -Frequency 10MHz ±...

  • Page 39: B-Scan System Performance

    Specifications Section 6 B-SCAN SYSTEM PERFORMANCE A-SCAN SYSTEM PERFORMANCE Examination Modes B-only Examination Modes Cataract Dense Cataract Aphakic Pseudophakic Display Scale Electronic Markers at 2.0 mm Display Scale Electronic Markers at 2.0mm Intervals Intervals Measurement Accuracy Measurement Accuracy Electronic ±0.0484 mm. Electronic ±0.023 mm.

  • Page 40: Alara Section And Emissions

    Section 6 Specifications ALARA SECTION AND EMISSIONS If more accuracy is desired, the intensity in the body at any transducer point may be calculated (As Low As Reasonably Possible) according to the formula recommended by the FDA: Probe Material: Lead Metanioboate exp(-0.069fz), Nominal Center Frequency: where I...
  • Page 41 Specifications Section 6 a depth of 50 mm; at an acquisition of 128 rays, the depth is 60 mm. Minimum is 18 mm. Acoustic Output Reporting Tables Typical measured results are below. There is a considerable variation in transducers, and any individual transducer may be quite different.
  • Page 42 VELOCITY TABLES Notes: DEFAULT INDIVIDUAL VELOCITIES Classification of Eye Velocity [m/s]  uses 2, 3, or 4 1. The Sonomed EZ-S gates to measure an eye based on the “Eye Anterior Chamber Depth (ACD) 1532 Type” selected. Individual velocities are...
  • Page 43 A-Constant S-Factor A-Constant S-Factor A-Constant S-Factor A-Constant S-Factor 110.0 -3.31 0.30 112.5 -1.89 1.76 115.0 -0.48 3.21 117.5 0.94 4.67 110.1 -3.25 0.36 112.6 -1.84 1.81 115.1 -0.42 3.27 117.6 1.00 4.73 110.2 -3.19 0.41 112.7 -1.78 1.87 115.2 -0.36 3.33 117.7 1.05...
  • Page 44 Appendix Haigis Formula Appendix C HAIGIS FORMULA The Haigis IOL formula developed by Wolfgang For physicians primarily in Europe, Africa and Haigis, Ph.D. may be ordered as an option on Asia, consult the website:  300 and E/Z-Scan 5500+ the P http://www.augenklinik.uni-wuerzburg.de/uslab/refbfrme.htm systems.

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E-z scan ab5500+E-z scan b5500+

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