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Make sure the rubber of the transducer is above the water.
Click [calibrate] to align the needle with the puncture guide line by adjusting the “position”
“angle” “+” and“-”.
After coincident, save the calibrated puncture guide wire parameters.
9
Acoustic output description
The contents of this chapter for the entire system (including main unit , probe, accessories
and peripherals), in order to provide relevant information to the operator output sound and
how to use ALARA control principle of irradiation time and other important safety
information. In addition, this chapter also includes information related to the system of
acoustic output real-time display.
Please read this chapter carefully before use.
9.1
Biological effect
It is generally believed that the diagnosis with ultrasound is safe. So far, there is no any
reports about ultrasonic cause bodily injury.
In spite of this, we can not arbitrarily believe all the ultrasonic is absolutely safe. Studies
have shown that ultrasound with high intensity is harmful to human body.
In recent years, with the rapid development of ultrasound technology, people are
increasingly concerned about the application of ultrasonic technique in diagnosis and may
lead to the potential risk of biological effect.
9.2
Caution use declaration
Although there is no confirmation of diagnosis by ultrasonic instrument can cause the
patient to produce biological effect, but there are still likely to prove the biological effects of
existing applications in the future. So we must be careful to use ultrasound, exert their
clinical effect in the premise to obtain the necessary clinical information, avoid long time
using high intensity ultrasound the.
9.3
ALARA
principle(As
Low
As
Reasonably Achievable)
ALARA is the guiding principle for the use of diagnostic ultrasound. Sonographers and
