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CHAPTER 8
ANNOUNCMENT OF PROBE SOUND WAVE
OUTPUT
Mechanical Effect and Thermal Effect
Research indicates that two different ultrasonic properties influence human body:one
is when ultrasonic negative pressure exceeds some limited number,air pocket forms
mechanical effect;another is when tissues absorb ultrasonic,appearance of heat energy
of ultrasonic may cause thermal effect.two parameters which are mechanical index MI
and thermal index TI can explain two types of effects influencing level,the smaller value
of MI/TI is,the less bio effect produce.
Attention:
1. The nature of the transducers within the probes is such that degradation can
occur over extended lengths of time.The sensitivity test can determine the sensitivity of
probes,and should be performed before each use.
2. The results of the sensitivity tst can not meet the requirements ,indicating it may
not be sensitive enough to perform accurate scans.Is general this is due to a loss of
sensitivity in the probe .If this is the case the probe should be replaced . However,in
order to confirm that it is the probe which is the case of the problem,it is necessary for
evaluation by SunKingdom Company.
Tissues Exposed to Ultrasound Energy
SK-3000A equipment can only be used in ophthalmology, with A-scan and B-scan
probes.
Warning: This device cannot be used for infants.
Warning section (as low as possible):
When used according to the recommended method, the energy will be weakened by the
organization between the converter and the focus. The value shown here is the value at
the focus. The intensity of focus is the highest.
Summary of Contents for SK-3000A
Page 12: ...11 1 12 Label This label information is stick on main body of Ophthalmic ultrasound ...
Page 28: ...27 4 5 P scan Test Interface 1 Eye Switch left eye and right eye ...
Page 30: ...29 4 6 B scan Test Interface 1 Eye Switch left eye and right eye ...
Page 35: ...34 ...
Page 41: ...40 2 Click Properties 3 Double click Internet protocol version 4 ICP IPv4 ...
