User's Manual
Table Of Contents
- M-Turbo Ultrasound System User Guide
- Contents
- Introduction
- Chapter 1: Getting Started
- Chapter 2: System Setup
- Displaying the setup pages
- Restoring default settings
- A & B Key, Footswitch setup
- Administration setup
- Annotations setup
- Audio, Battery setup
- Cardiac Calculations setup
- Connectivity setup
- Date and Time setup
- Display Information setup
- IMT Calculations setup
- Network Status setup
- OB Calculations setup
- OB Custom Measurements setup
- OB Custom Tables setup
- Presets setup
- System Information setup
- USB Devices setup
- Chapter 3: Imaging
- Chapter 4: Measurements and Calculations
- Chapter 5: Troubleshooting and Maintenance
- Chapter 6: Safety
- Ergonomic safety
- Electrical safety classification
- Electrical safety
- Equipment safety
- Battery safety
- Clinical safety
- Hazardous materials
- Electromagnetic compatibility
- ALARA principle
- Acoustic artifacts
- Guidelines for reducing MI and TI
- Output display
- Transducer surface temperature rise
- Acoustic output measurement
- Acoustic output tables
- Labeling symbols
- Chapter 7: References
- Chapter 8: Specifications
- Glossary
- Index
Chapter 6: Safety 97
Safety
ALARA principle
ALARAistheguidingprinciplefortheuseofdiagnosticultrasound.Sonographersandother
qualifiedultrasoundusers,usinggoodjudgmentandinsight,determinetheexposurethatis
“aslowasreasonablyachievable.”Therearenosetrulestodeterminethecorrectexposurefor
everysituation.Thequalifiedultrasounduserdeterminesthe
mostappropriatewaytokeep
exposurelowandbioeffectstoaminimum,whileobtainingadiagnosticexamination.
Athoroughknowledgeoftheimagingmodes,transducercapability,systemsetupand
scanningtechniqueisnecessary.Theimagingmodedeterminesthenatureoftheultrasound
beam.Astationarybeamresultsinamoreconcentrated
exposurethanascannedbeam,which
spreadsthatexposureoverthatarea.Thetransducercapabilitydependsuponthefrequency,
Radiated RF
IEC 61000-4-3
(continued)
Field strengths from fixed RF
transmitters, as determined by
an electromagnetic Site
survey
a
, should be less than
the compliance level in each
frequency range
b
.
Interference may occur in the
vicinity of equipment marked
with the following symbol:
(IEC 60417 No. 417-IEC-5140:
“Source of non-ionizing
radiation”)
Note: U
T
is the AC mains voltage prior to application of the test level.
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
a.Field strengths from fixed transmitters such as base stations for radio (cellular/cordless) telephones and
land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted
theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an
electromagnetic site survey should be considered. If the measured field strength in the location in which
the SonoSite ultrasound system is used exceeds the applicable RF compliance level above, the SonoSite
ultrasound system should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the SonoSite ultrasound system.
b.Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Table 2: Manufacturer’s Declaration - Electromagnetic Immunity (Continued)
Immunity Test IEC 60601 Test Level Compliance Level
Electromagnetic
Environment