Accutome a-scan plus User manual

A-Scan Plus
User’s Guide
24-4016 Rev B

Federal law restricts this device to sale by or on
the order of a physician.
FEDERAL COMMUNICATIONS COMMISSION (FCC)
UNINTENTIONAL EMITTER PER FCC PART 15
This device has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC rules. These
limits are designed to provide reasonable protection against harmful
interference in an office installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions in the user manual, may
cause harmful interference to radio or television reception. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause interference to radio and
television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and
receiver
Connect the equipment to an outlet on a different circuit
from that to which the receiver is connected
Consult Accutome Ultrasound, Inc or an experienced
radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation of
this product is subject to the following two conditions: (1) this device
may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause
undesired operation.
CAUTION:
Changes or modifications not expressly approved by Accutome
Ultrasound, Inc. could void the FCC compliance and negate your
authority to operate the product.
Authorized Representative in Europe (for regulatory affairs only):
Emergo Europe
P.O. Box 18510
2502 EM The Hague
The Netherlands
Tel: [phone]
Fax: [phone]
0086

i
Contents
Introduction - - - - - - - - - - - - - - - - - 1
Accutome A-Scan Plus Overview - - - - - - - - - - 1
Features - - - - - - - - - - - - - - - - - - - - 2
Measurements - - - - - - - - - - - - - - - - 2
IOL Calculations - - - - - - - - - - - - - - - - 3
Components - - - - - - - - - - - - - - - - - 4
Optional Components - - - - - - - - - - - - 4
About This Manual - - - - - - - - - - - - - - - - 5
Safety - - - - - - - - - - - - - - - - - - - - 7
Safety Information - - - - - - - - - - - - - - - - 7
Safety Issues to Consider When Using the Accutome A-
Scan Plus - - - - - - - - - - - - - - - - - - 7
Indications for use- - - - - - - - - - - - - - - 7
Symbol Definitions for the Accutome - - - - - - - - 8
Safety Precautions - - - - - - - - - - - - - - - - 9
Sterilization- - - - - - - - - - - - - - - - - - 9
Disinfection and Cleaning - - - - - - - - - - - - 10
Electrical Hazard and Safety - - - - - - - - - 12
Avoiding Equipment Damage - - - - - - - - - 12
Getting Started - - - - - - - - - - - - - - - 13
Assembling the Accutome A-Scan Plus - - - - - - 13
What you need - - - - - - - - - - - - - - - - 13
Probe - - - - - - - - - - - - - - - - - - - 14
Printer - - - - - - - - - - - - - - - - - - - 14
Serial Link Port - - - - - - - - - - - - - - - 15
Foot Switch - - - - - - - - - - - - - - - - - 15
Keyboard - - - - - - - - - - - - - - - - - - 15
Power Supply - - - - - - - - - - - - - - - - 15

ii
Accutome A-Scan Plus User’s Guide
Placing the Accutome A-Scan Plus - - - - - - - - 16
Quick-Close Kickstand - - - - - - - - - - - - 16
Mounting - - - - - - - - - - - - - - - - - - 18
Connecting the Components - - - - - - - - - - 18
Connecting the Printer - - - - - - - - - - - - 19
Connecting the Footswitch - - - - - - - - - - 19
Connecting the Keyboard - - - - - - - - - - - 20
Connecting the Serial Link - - - - - - - - - - 21
Connecting the Power - - - - - - - - - - - - 22
Connecting the Probe - - - - - - - - - - - - 23
Probe Setup - - - - - - - - - - - - - - - - - - 25
Accutome Probe with an Immersion Shell - - - - - 26
Accutome Probe with Goldman Tonometer Adapter- 27
Accutome Probe with Handle Extension - - - - - - 28
Basic Operation - - - - - - - - - - - - - - - - 30
How to Power On the Accutome A-Scan Plus - - - 30
How to Adjust the Contrast - - - - - - - - - - - 32
Using the Test Block - - - - - - - - - - - - - - 33
How to Start a New Patient - - - - - - - - - - - 34
How to Enter Text without a Keyboard - - - - - 38
Screen Keyboard Features - - - - - - - - - - - 39
Entering a Patient with the Screen Keyboard - - 40
How to Take a Measurement - - - - - - - - - - 41
How to Perform a Calculation - - - - - - - - - - 43
How to Print a Record - - - - - - - - - - - - - 47
How to Save Patient Records - - - - - - - - - - 48
How to Use the Buttons and Screens - - - - 51
Overview - - - - - - - - - - - - - - - - - - - 51
Accutome A-Scan Plus Buttons - - - - - - - - - - 52
Dedicated Buttons - - - - - - - - - - - - - - - 52
Measure Button - - - - - - - - - - - - - - - 53
Patient Record Button - - - - - - - - - - - - 53
Calculate - - - - - - - - - - - - - - - - - - 53
Preferences - - - - - - - - - - - - - - - - - 53
Print - - - - - - - - - - - - - - - - - - - - 54
Check or Affirmative (9) - - - - - - - - - - - 54
Negative or Delete (X) - - - - - - - - - - - - 54

iii
Contents
Soft Menu Buttons - - - - - - - - - - - - - - - 55
Buttons that Toggle between Two Selections - - 55
Buttons that Display Other Screens or Soft Menus 55
Accutome A-Scan Plus Knob - - - - - - - - - - 55
How the Knob Works - - - - - - - - - - - - - 55
Screens - - - - - - - - - - - - - - - - - - - - 56
What the Screen Displays - - - - - - - - - - - 56
Types of Information - - - - - - - - - - - - - 56
Soft Menus - - - - - - - - - - - - - - - - - 57
Tips - - - - - - - - - - - - - - - - - - - - 57
Sounds- - - - - - - - - - - - - - - - - - - 57
Error Messages - - - - - - - - - - - - - - - 57
Moving between Screens - - - - - - - - - - - - 57
Screen Hierarchy - - - - - - - - - - - - - - - 58
Top Level Screens - - - - - - - - - - - - - - - 59
Associated Sub-Level Screens - - - - - - - - - 59
From the Measure Screen - - - - - - - - - - - - 59
From the Calculate Screen - - - - - - - - - - - 59
From the Patient Records Screen- - - - - - - - - 59
From the Preferences Screen - - - - - - - - - - 59
How Buttons, Screens and Knob Work Together - - 60
Changing Fields and Table Cells - - - - - - - - - 60
Active Area - - - - - - - - - - - - - - - - - 60
Text Entry - - - - - - - - - - - - - - - - - 60
Selecting a New Active Area - - - - - - - - - - 61
Changing Fields in the Active Area - - - - - - - 61
Pre-entered Fields - - - - - - - - - - - - - - - 61
Fields Requiring Information - - - - - - - - - - 61
Numeric Fields - - - - - - - - - - - - - - - - 62
Keyboard Shortcuts - - - - - - - - - - - - - - 63
Using the Footswitch - - - - - - - - - - - - - - 64
Preferences - - - - - - - - - - - - - - - - 65
Setting Up the Accutomre A-Scan Plus - - - - - - 65
How to Access Preferences - - - - - - - - - - - 66
Top Level of Preferences - - - - - - - - - - - - 67
How to Add a New Eye Type - - - - - - - - - - - 68
Adding a New Lens Material - - - - - - - - - - - 69

iv
Accutome A-Scan Plus User’s Guide
Assigning a Velocity to the New Lens Material - - 72
Adding the New Eye Type Information - - - - - 73
Eye Type Screen Menu Selections - - - - - - - - 80
Reset Field to Factory - - - - - - - - - - - - - 80
Reset All to Factory - - - - - - - - - - - - - - 83
More Settings - - - - - - - - - - - - - - - - - 85
Setup Screen Fields - - - - - - - - - - - - - - 85
Setup Screen Soft Menu - - - - - - - - - - - - 85
How to Set the Print Title - - - - - - - - - - - - 87
How to Set the Printer - - - - - - - - - - - - - 91
How to Set the Serial Link - - - - - - - - - - - 96
Text with Data Driver - - - - - - - - - - - - 96
How to Set the Serial Baud - - - - - - - - - - 102
How to Set Delete Confirm - - - - - - - - - - 106
How to Adjust the Contrast - - - - - - - - - - 110
How to Set the Default Patient Eye Type - - - - 114
How to Set the Default ID - - - - - - - - - - 118
How to Set the Default Gain - - - - - - - - - 122
How to Set the Target Refraction - - - - - - - 124
How to Set the K Index - - - - - - - - - - - 128
How to Set the IOL Step - - - - - - - - - - - 133
How to Adjust the Date and Time - - - - - - - 137
How to Set the Auto Mode - - - - - - - - - - 141
Sound On/Sound Off - - - - - - - - - - - - - 148
Restart On/Restart Off - - - - - - - - - - - - 148
Scr Save On/Scr Save Off - - - - - - - - - - 148
Save and Restore Factory Default Gates
and Threshold - - - - - - - - - - - - - - - 149
About This Unit - - - - - - - - - - - - - - - 150
Performing Measurements - - - - - - - - 151
Overview - - - - - - - - - - - - - - - - - - -151
Measure Screen - - - - - - - - - - - - - - - -152
Information Displayed on the Measure Screen - - 153
Soft Menu Selections - - - - - - - - - - - - 153
Starting a New Patient - - - - - - - - - - - - 154
How to Set the Eye Type - - - - - - - - - - - -155
Eye Types - - - - - - - - - - - - - - - - - 155

v
Contents
Eye Type Materials and Velocities - - - - - - - 156
Setting the Eye Type- - - - - - - - - - - - - 157
Probe Application Methods - - - - - - - - - - - -160
Immersion - - - - - - - - - - - - - - - - - 160
Contact - - - - - - - - - - - - - - - - - - 160
Capture Modes - - - - - - - - - - - - - - - -161
Auto Mode - - - - - - - - - - - - - - - - - 161
Manual Mode - - - - - - - - - - - - - - - - 162
How to Capture a Waveform - - - - - - - - - - -163
Using the Foot Switch - - - - - - - - - - - - 163
Using the Running/Frozen Button - - - - - - - 163
Using the Measure Button - - - - - - - - - - 163
How to Select a Measurement - - - - - - - - - -164
Selecting a Measurement with the Knob - - - - 164
Selecting a Measurement Using Waveform
Review Menu - - - - - - - - - - - - - - - - 165
Selecting a Measurement with the Foot Switch - 166
How to Delete a Measurement - - - - - - - - - -167
Deleting a Measurement with X Button
or Keyboard - - - - - - - - - - - - - - - - 167
Deleting a Measurement with the Foot Switch - - 167
How to Adjust Gates/Threshold - - - - - - - - -168
Available Gates/Threshold - - - - - - - - - - 169
Selecting Gates/Threshold - - - - - - - - - - 170
Waveform Review Menu - - - - - - - - - - 171
How to Adjust the Cornea Gate - - - - - - - - 172
How to Adjust the Anterior Lens Gate - - - - - 173
How to Adjust the Posterior Lens Gate - - - - - 175
How to Adjust the Retina Gate - - - - - - - - 177
How to Adjust the Threshold - - - - - - - - - 178
How to Apply Gate Adjustments to All Waveforms 179
How to Adjust the Gain - - - - - - - - - - - - -180
How to Use Zoom - - - - - - - - - - - - - - -182
How to Scroll - - - - - - - - - - - - - - - - -184
Switching Eyes - - - - - - - - - - - - - - - -186
Customize Eye Type - - - - - - - - - - - - - -186

vi
Accutome A-Scan Plus User’s Guide
Customizing Eye Types - - - - - - - - - - 187
Overview - - - - - - - - - - - - - - - - - - -187
Patient Customization - - - - - - - - - - - - 187
Customize Eye Type Screen - - - - - - - - - - -188
Customize Fields and Menu Selections - - - - - 188
OD - - - - - - - - - - - - - - - - - - - 188
OS - - - - - - - - - - - - - - - - - - - 188
Eye Type Table - - - - - - - - - - - - - - 188
AC - - - - - - - - - - - - - - - - - - - - - - 188
Lens - - - - - - - - - - - - - - - - - - - - - 188
VC - - - - - - - - - - - - - - - - - - - - - - 189
How to Customize an Eye Type - - - - - - - - -190
Performing Calculations - - - - - - - - - 197
Overview - - - - - - - - - - - - - - - - - - -197
Calculating the Lens - - - - - - - - - - - - - -197
Calculation after Corneal Refractive Surgery- - 197
Calculate IOL Screen - - - - - - - - - - - - - -199
Selecting an IOL Group- - - - - - - - - - - - 200
Selecting a Formula - - - - - - - - - - - - - 200
Entering an ACD Value with the Haigis Formula 200
Changing the AXL Value - - - - - - - - - - - 201
Selecting a Measurement - - - - - - - - - - 201
Entering an AXL Value - - - - - - - - - - - 202
Entering the K1, K2 Values - - - - - - - - - - 202
Entering the Target Value - - - - - - - - - - 204
Calculation Results - - - - - - - - - - - - - 204
Formula Compare Feature - - - - - - - - - - 206
Switching Between OD/OS - - - - - - - - - - 206
Calculating IOL Power After Corneal
Refractive Surgery - - - - - - - - - - - - - - -207
Double K Method - - - - - - - - - - - - - - 207
Determining Corneal Power after
Refractive Surgery
(Post Rx Surg) - - - - - - - - - - - - - - - 208
Post Rx Surg IOL Calculation Steps - - - - - - 208
Selecting a K Post Calculation Method - - - - 208
Changing Rx Surg Field to Yes - - - - - - - - -210

vii
Contents
Clinical History Method - - - - - - - - - - - - 211
Clinical History Fields - - - - - - - - - - - 211
Contact Lens Method - - - - - - - - - - - - 212
Shammas Clinical Method- - - - - - - - - - 213
Calculation Results - - - - - - - - - - - - - 214
Switching Between OD/OS - - - - - - - - - - 214
Setting Up IOL Groups - - - - - - - - - - 215
How are IOL Groups Used - - - - - - - - - - - -215
How to Set Up an IOL Group - - - - - - - - - - -216
Accessing the IOL Groups Screen - - - - - - - 216
IOL Calculation Groups Screen - - - - - - - - 217
Entering IOL Group Names - - - - - - - - - - 218
Entering the Group’s Lenses - - - - - - - - - 219
Personalizing Lens Constants - - - - - - - 225
Overview - - - - - - - - - - - - - - - - - - -225
Personalizing Lens Constants - - - - - - - - - 225
How to Personalize Constants - - - - - - - - - -226
Accessing the Personalize IOLs Screen - - - - - 226
Personalize IOLs Screen - - - - - - - - - - - 228
Personalize IOLs Screen Soft Menus - - - - - 228
Selecting an IOL Group and Lens - - - - - - - 229
Next IOL/Group - - - - - - - - - - - - - - 229
Selecting IOL Group with the Knob - - - - - -230
Entering Postoperative Results - - - - - - - - 231
Pasting Patient Information - - - - - - - - - -232
Manually Entering Patient Information - - - - 233
Entering Remaining Postoperative Results- - - 234
Deleting Postoperative Results - - - - - - - - 234
Deleting Current Postoperative Result - - - - 234
Deleting All Postoperative Results - - - - - - 235
How to View Individual Results for a Formula - - 235
How to Sort Postoperative Results - - - - - - - 235
How to Update IOL Constants - - - - - - - - - 236
Update IOL Constants Screen - - - - - - - - 237
Selecting an IOL Group and Lens - - - - - - - 238

viii
Accutome A-Scan Plus User’s Guide
Storing and Recalling Records - - - - - - - 241
Overview - - - - - - - - - - - - - - - - - - -241
How to Store a Record - - - - - - - - - - - - -242
How to Recall a Record - - - - - - - - - - - - -244
How to Adjust Parameters on Saved Records - - 246
How to Update Calculations - - - - - - - - - - 246
How to Sort Patient Records - - - - - - - - - - -247
Printing Records - - - - - - - - - - - - - 249
How to Print a Record - - - - - - - - - - - - -249
Screen Printout Formats - - - - - - - - - - - 249
How to Select the Right Printout Format - - - 250
Sample Printouts - - - - - - - - - - - - - 250
How to Batch Print- - - - - - - - - - - - - - 254
Required Printer - - - - - - - - - - - - - - - -256
Maintenance - - - - - - - - - - - - - - - 257
General Maintenance - - - - - - - - - - - - - -257
Specifications - - - - - - - - - - - - - - 259
Overview - - - - - - - - - - - - - - - - - - -259
Physical Specifications - - - - - - - - - - - - -259
Environmental Specifications - - - - - - - - - -262
Measurement Accuracy - - - - - - - - - - - - -263
Operating Modes - - - - - - - - - - - - - - - -264
Formula References - - - - - - - - - - - - - -265
Storage/Range Specifications - - - - - - - - - -266
Acoustic Output - - - - - - - - - - - - - - - -268
Warranty & Repairs - - - - - - - - - - - 271
Warranty - - - - - - - - - - - - - - - - - - -271
Product Returns - - - - - - - - - - - - - - - -272
Service and Repair - - - - - - - - - - - - - 272
All Other Returns - - - - - - - - - - - - - - 272
Non-Returnable Merchandise - - - - - - - - - 272
Replacement Parts - - - - - - - - - - - - - - -273
Documentation - - - - - - - - - - - - - - - -273