Mindray DP-20 - Page 8

vi Contents
12.2.4 Biopsy Menu ............................................................................................................. 12-25
12.2.5 Verify Biopsy Guide Line........................................................................................... 12-26
12.2.6 Removing the Needle-guided Bracket ...................................................................... 12-27
12.2.7 Clean and Sterilize the Needle-guided Bracket ........................................................ 12-29
12.2.8 Storage and Transportation ...................................................................................... 12-31
12.2.9 Disposal .................................................................................................................... 12-32
12.3 Lithotrity ............................................................................................................................ 12-32
13 Battery ....................................................................................................................... 13-1
13.1 Overview ............................................................................................................................ 13-1
13.2 Precautions ........................................................................................................................ 13-2
13.3 Installing and Removing the Batteries ................................................................................ 13-2
13.4 Battery Status Indicator ...................................................................................................... 13-3
13.5 Checking Battery Performance .......................................................................................... 13-3
13.6 Battery Disposal ................................................................................................................. 13-4
14 Acoustic Output ........................................................................................................ 14-1
14.1 Concerns with Bioeffects .................................................................................................... 14-1
14.2 Prudent Use Statement ...................................................................................................... 14-1
14.3 ALARA Principle (As Low As Reasonably Achievable) ...................................................... 14-1
14.4 MI/TI Explanation ............................................................................................................... 14-2
14.4.1 Basic Knowledge of MI and TI .................................................................................... 14-2
14.4.2 MI/TI Display ............................................................................................................... 14-3
14.5 Acoustic Power Setting ...................................................................................................... 14-3
14.6 Acoustic Power Control ...................................................................................................... 14-4
14.7 Acoustic Output .................................................................................................................. 14-4
14.7.1 Derated Ultrasonic Output Parameters ...................................................................... 14-4
14.7.2 Limits of Acoustic Output ............................................................................................ 14-5
14.7.3 Differences between Actual and Displayed MI and TI ................................................ 14-5
14.8 Measurement Uncertainty .................................................................................................. 14-6
14.9 References for Acoustic Power and Safety ........................................................................ 14-6
15 EMC Guidance and Manufacturer's Declaration .................................................... 15-1
16 System Maintenance ................................................................................................ 16-1
16.1 Daily Maintenance .............................................................................................................. 16-1
16.1.1 Cleaning the System .................................................................................................. 16-1
16.1.2 Checking the Probe .................................................................................................... 16-4
16.1.3 Checking the Power Cable and Plug .......................................................................... 16-4
16.1.4 Checking Appearance ................................................................................................ 16-4
16.1.5 Backup of the System Hard Drive .............................................................................. 16-4
16.2 Troubleshooting .................................................................................................................. 16-5