Table of Contents
Troubleshooting
Related Manuals for Sonomed 300AP
Summary of Contents for Sonomed 300AP
- Page 1 ™ SERIES 300A 300P 300AP A-SCAN / PACHYMETER INSTRUCTION MANUAL SONOMED, INC. A SUBSIDIARY OF ESCALON MEDICAL 3000 MARCUS AVENUE LAKE SUCCESS, NY 11042 Tel 800-227-1285 516-354-0900 Fax 516-354-5902 www.sonomedinc.com...
- Page 2 ™ SERIES 300A 300P 300AP A-SCAN / PACHYMETER INSTRUCTION MANUAL SONOMED, INC. A SUBSIDIARY OF ESCALON MEDICAL 3000 MARCUS AVENUE LAKE SUCCESS, NY 11042 Tel 800-227-1285 516-354-0900 Fax 516-354-5902 www.sonomedinc.com 0413...
- Page 3 Copyright ©2002, 2003 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. Doc # 0300-A-1901-3D...
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Page 4: Table Of Contents
TABLE OF CONTENTS SECTION 1 INTRODUCTION 1.1 A-SCAN FEATURES 1.2 PACHYMETER FEATURES 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 Connecting Accessories Optional Printer Set-Up Power Up Check... - Page 5 3.5 PATIENT EXAMINATION Direct Contact Scanning in Automatic Capture Mode Direct Contact Scanning in Manual Mode Water Immersion Technique Performing IOL Calculations Printing 3.6 SOURCES OF ERRORS AND HOW TO 3-11 AVOID THEM Corneal Compression A-Scan Pattern Examination Modes SECTION 4 PACHYMETER OPERATION AND CLINICAL USE 4.1 SELECTING PACHYMETER MODE 4.2 MEASUREMENT ACCURACY and PROBE SENSITIVITY TESTS...
- Page 6 Probe General Inspection 5.2 A-SCAN FUNCTIONALITY CHECK Calibration Check Sensitivity Test 5.3 PACHYMETER FUNCTIONALITY CHECK Measurement Accuracy Test Probe Sensitivity Test 5.4 TROUBLESHOOTING 5.5 WARRANTY SECTION 6 SYSTEM SPECIFICATIONS PHYSICAL ELECTRICAL ENVIRONMENTAL INTERFACE DISPLAY PROBES PROBES PRINTER (OPTIONAL) ACCESSORIES A-SCAN SYSTEM PERFORMANCE PACHYMETER SYSTEM PERFORMANCE SYMBOLS APPENDIX...
- Page 7 HAIGIS IOL FORMULA Appendix-5 Doc # 0300-A-1901-3D...
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Page 8: Section 1 Introduction
1-800-227-1285 at any time with questions or Live A-Scan Display concerns regarding system use. Gain Control Thank you for your trust in Sonomed to provide for your ophthalmic biometry needs. Storage of 5 Scans for Later Review and IOL Calculation... -
Page 9: Pachymeter Features
A-Scan Measurement Review Capability Axial Length, Anterior Chamber Depth, Several features help to distinguish the Sonomed ™ series including: and Lens Thickness Measures for Each Scan... -
Page 10: Section 2 Getting Started
Each item should be examined for any noticeable defects or damage that may have occurred during shipment. If any defect or damage exists, please call your local representative or Sonomed immediately to report the problem. Doc # 0300-A-1901-3D 2 - 1... -
Page 11: Safety Considerations
Getting Started Section 2 GENERAL WARNINGS SAFETY CONSIDERATIONS Use only the AC Adapter that is supplied with the system. FOR YOUR PROTECTION, please read these safety instructions completely before To avoid explosion, DO NOT operate this installing, applying power to, or operating product in the presence of flammable gases or the system. - Page 12 Section 2 Getting Started Afin d’éviter tout risque d’explosion ne pas utiliser ce produit en présence de produits SOMMAIRE DES MESURES DE inflammable. L’opération d’un produit SÉCURITÉ électrique dans de tel conditions constitue un risque d’explosion. POUR VOTRE PROTECTION, S.V.P. lire ces instructions de sécurité...
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Page 13: System Set-Up
This instrument may be damaged if operated LOST” warning message will be displayed. with an AC adapter other than that provided. Please contact Sonomed service department for further assistance. 6. Connect the probe connector (A-Scan probe or pachymeter probe) to the jack on the right side of the system labeled "PROBE". -
Page 14: Screen Contrast Adjustment
Section 2 Getting Started 3. After entering the year, the display will return CAUTION to the Main Screen. Verify that the correct Care should be taken when using or storing the date is displayed on the bottom right corner system so that excessive force is not applied to of the screen. - Page 15 Getting Started Section 2 2 - 6 Doc # 0300-A-1901-3D...
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Page 16: Section 3 A-Scan Operation And Clinical Use
Section 3 A-Scan Operation and Clinical Use Section 3 A-SCAN OPERATION AND CLINICAL USE (For 300A and 300AP Models Only) ™ 300AP The A-Scan mode of the P allows for measuring the axial length (AXL) of an eye and calculating the associated IOL power for an implanted lens. -
Page 17: System Set-Up
[ EDIT ] button to If a measure within 10.00 ± 0.1 mm cannot be edit an existing user profile. Enter the name obtained, contact Sonomed service department and/or ID of the user by touching the for assistance. -
Page 18: Entering Patient Information
Section 3 A-Scan Operation and Clinical Use Table 3-1 1. Touch the [ PATIENT ] button. Verify that IOL Formula Constant Default Values the Patient Screen appears (see Figure 3-4). IOL Formula Constants Default Values Hoffer-Q 3.68 mm Theoretic-T A-Constant 115.8 D Regression A-Constant... - Page 19 A-Scan Operation and Clinical Use Section 3 the instructions supplied with the immersion shell for further directions regarding use of the WARNING shell. The PacScan assumes a keratometer index of refraction of 1.3375 for converting K readings. If entering K readings in millimeters which were obtained using a keratometer with a different PATIENT EXAMINATION index, the values must first be manually...
- Page 20 Section 3 A-Scan Operation and Clinical Use Aphakic 4. Scan Eye. Instruct the patient to look towards the red fixation light in the probe tip Pseudophakic and visually align the probe along the patient's visual axis. Move the probe forward When Pseudophakic mode is selected, one until contact with the cornea is achieved.
- Page 21 A-Scan Operation and Clinical Use Section 3 6. Repeat. The protocol can be repeated to obtain up to five (5) scans. As the scans are 3. Immersion Option. Ensure that captured, the axial length for each is immersion option is OFF as indicated in the displayed in the upper center of the Measure lower left corner of the Measure Screen.
- Page 22 Section 3 A-Scan Operation and Clinical Use immersion option may be toggled between WATER IMMERSION TECHNIQUE ON and OFF by touching the [ IMMER ] button. In addition to direct contact measurements, a water immersion technique may be used with the ™...
- Page 23 A-Scan Operation and Clinical Use Section 3 6. Scan Eye. Pick up the syringe from its place on the patient’s shoulder and slowly inject the saline or BSS into the shell. As soon as the liquid fills the shell sufficiently to reach the tip of the probe (about 2cc), the characteristic waveforms...
- Page 24 Section 3 A-Scan Operation and Clinical Use desired, they may all be deleted by touching (which can be changed by touching the the [ CLR SCANS ] button. formula button), the associated formula constants, the k readings previously entered, 10. Remove Prager Scleral Shell. Once all and the average axial length measured.
- Page 25 A-Scan Operation and Clinical Use Section 3 Figure 3-10. IOL Exam Record 2. Printing. Touch the [ PRINT ] button within either the Measure Screen or IOL Calculations Screen. 3 - 10 Doc # 0300-A-1901-3D...
- Page 26 Section 3 A-Scan Operation and Clinical Use reviewing, the user should compare the similarity of the characteristics of the particular SOURCES OF ERRORS AND HOW scan under consideration with those of an TO AVOID THEM optimal A-Scan pattern. Characteristics of an Optimal A-Scan are as There are a few common errors which may follows: occur when performing A-scans which deserve...
- Page 27 A-Scan Operation and Clinical Use Section 3 scan. In such a case, a scan may have to be of a single line – scans with additional lines accepted based on its meeting the remaining should be rejected. criteria. There should also be a strong scleral spike, about 1.5 to 2.0 mm posterior to the retinal spike.
- Page 28 Section 4 Pachymeter Operation and Clinical Use Section 4 PACHYMETER OPERATION AND CLINICAL USE (For 300P and 300AP Models Only) ™ series The Pachymeter mode of the P allows for measuring and mapping corneal MEASUREMENT ACCURACY and thickness. PROBE SENSITIVITY TESTS...
- Page 29 When IMPORTANT finished, touch the [ ENTER ] button. If acceptable probe sensitivity cannot be verified, contact Sonomed service department Touch the [ DONE ] button when finished. for further help. It is recommended that the probe sensitivity test ENTERING PATIENT INFORMATION be performed prior to obtaining measurements;...
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Page 30: Patient Preparation
Section 4 Pachymeter Operation and Clinical Use 2. Within the Patient Screen, enter information CORNEAL VELOCITY patient touching [ NEW PAT ] button or edit the existing The corneal velocity is preset to 1636 m/s. The patient information by touching the [ EDIT ] corneal velocity does not usually require button. -
Page 31: Measurement Modes
Pachymeter Operation and Clinical Use Section 4 MEASUREMENT MODES MEASUREMENTS – SINGLE READING The user is provided with four (4) measurement SINGLE POINT modes: 1. Make certain the probe tip is clean & dry. Single Reading / One Point. This mode allows the user to obtain a single reading 2. -
Page 32: Measurements - Multiple Readings Single Point
Section 4 Pachymeter Operation and Clinical Use MEASUREMENTS – MULTIPLE READINGS SINGLE POINT 1. Make certain the probe tip is clean & dry. 2. Place the probe tip onto the cornea starting at the optical center, making certain that the probe tip is perpendicular to the surface of the cornea. -
Page 33: Measurements - Single Reading Multiple Points
Pachymeter Operation and Clinical Use Section 4 MEASUREMENTS – SINGLE READING MULTIPLE POINTS 1. Make certain the probe tip is clean & dry. 2. Place the probe tip onto the cornea starting at the optical center, making certain that the probe tip is perpendicular to the surface of the cornea. -
Page 34: Measurements - Multiple Readings Multiple Points
Section 4 Pachymeter Operation and Clinical Use 10. Readings for all locations can be displayed MEASUREMENTS – at one time by touching the [ REVIEW ] MULTIPLE READINGS button. MULTIPLE POINTS 1. Make certain the probe tip is clean & dry. 2. -
Page 35: Troubleshooting The Measurement Process
If difficulties persist, contact your local 2. Place a small amount of water inside of the representative or Sonomed for assistance. test target and fully insert the pachymeter probe into the target. 3. Lift the probe and test target up to a vertical position with the test target on top of the probe, holding the two together. -
Page 36: Section 5 Maintenance And Service
Section 5 Maintenance and Service Section 5 MAINTENANCE AND SERVICE 6. Verify that the foot pedal functions properly, is placed in a convenient location, and that ROUTINE MAINTENANCE the cable is free from becoming entangled. The maintenance described below should be CLEANING ™... -
Page 37: Probe General Inspection
IMPORTANT If a measure within 10 ±0.1mm cannot be obtained, contact Sonomed service department for further help. It is recommended that calibration be performed prior to obtaining measurements; however, the calibration mode can be skipped if so desired by... -
Page 38: Sensitivity Test
Section 5 Maintenance and Service A-SCAN SENSITIVITY TEST PACHYMETER FUNCTIONALITY Sonomed A-scan probes are constructed to be CHECK reliable products which may be used for several years. However, the nature of the transducers within the probes is such that degradation can MEASUREMENT ACCURACY TEST occur over extended lengths of time. -
Page 39: Probe Sensitivity Test
Maintenance and Service Section 5 PROBE SENSITIVITY TEST Sonomed pachymeter probes are constructed to be reliable products which may be used for several years. However, the nature of the transducers within the probes is such that degradation can occur over extended lengths of time. -
Page 40: Troubleshooting
Ensure the contrast control is properly If it is deemed necessary to return the system adjusted. and/or probes to Sonomed for service, a return authorization will be issued. Please Unable to freeze A- Verify that the ensure that any materials returned to... -
Page 41: 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 42: Physical
50 mm 2.0” Storage Temperature -40 - 70°C (-40 - 158°F) Storage Humidity 10 - 90% Non-Condensing ACCESSORIES System Item INTERFACE 300A 300P 300AP DC Input 1-Pin Jack Connector ™ • • • Unit Foot Pedal 1-Pin Jack Connector •... -
Page 43: A-Scan System Performance
Specifications Section 6 A-SCAN SYSTEM PERFORMANCE PACHYMETER SYSTEM PERFORMANCE Examination Modes Automatic Capture Measurement Modes Single Reading / One Point Normal Cataract Multiple Readings / One Point Dense Cataract Single Reading / Multiple Aphakic Points Pseudophakic Multiple Readings / Multiple Manual Points Display Scale... -
Page 44: Symbols
Section 6 Specifications SYMBOLS Footswitch Port Direct Current Input Type BF Applied Part Output is isolated from live parts by double or reinforced insulation On-Charge (not currently used)-Off switch Attention, Consult Accompanying Documents Caution, Potential Hazard Exists If This Action or Function Is Not Performed Correctly Class II Equipment per EN60601 CE Mark, Complies with all applicable New Approach Directives. - Page 45 Specifications Section 6 6 - 4 Doc # 0300-A-1901-3D...
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Page 46: Appendix
Appendix System Parameters APPENDIX A VELOCITY TABLES ACRYLIC PSEUDOPHAKIC LENS VELOCITY OF SOUND USED IN Average VARIOUS MEASUREMENTS Velocity (m/s) Acrylic Lens Thickness (mm) (note 3) AXIAL LENGTH MEASUREMENT 0.7 mm 1547 Average 0.8 mm (default) 1549 Classification of Eye Velocity (m/s) 0.9 mm 1551... - Page 47 System Parameters Appendix Appendix - 2 Doc # 0300-A-1901-3D...
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Page 48: Table Of Iol Constants
Appendix System Parameters APPENDIX B - TABLE OF IOL CONSTANTS Information supplied by Jack T. Holladay, MD 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... - Page 49 Appendix System Parameters Doc # 0300-A-1901-3D Appendix - 4...
- Page 50 Appendix System Parameters APPENDIX C HAIGIS IOL FORMULA The Haigis IOL formula developed by Wolfgang Haigis, Ph.D. may be ordered as an option on the ™ 300AP and P ™ 300A systems. For a clinical reference regarding the Haigis IOL formula consult “Comparison of immersion ultrasound biometry and partial coherence interferometry for IOL calculation according to Haigis”;...
- Page 51 System Parameters Appendix Appendix - 6 Doc # 0300-A-1901-3D...
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