Tomey UD-600, Operator'S Manual

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1-6
1.4 Outline of the operation
This model of UD-6000 is designed an ophthalmic diagnosis instrument, which
provides the function acquires the ultrasound cross-sectional image of an eye
with the ultrasound oscillators enclosed in the probe, that which acquires the
A-scan wave shape, and that which measures the axial length. It is noted that
the instrument is in suspension of ultrasound wave transmission.
1.4.1 B-mode image diagnosis
y
The B-scan probe, which is connected to the instrument, transmits
ultrasound waves into the eyeball, while scanning them in a fan con-
figuration, so that the ultrasound echo is reflected from the organ of
the internal part of the eye ball to display its structure in the cross-
sectional image.
y
The ultrasound beam focus image is controlled with six annular-
arrayed oscillators arranged concentrically, which ensure a wide range
of ultrasound cross-sectional images with high resolution.
y
The instrument memorizes 202 images at maximum which can repeatedly
play back the images with the most appropriate resolution with the image
playback function and the frame forward and reverse function.
1.4.2 Assistant function of biometry
y
The assistant function of biometry provides the information to be
used for B-scan images, in case the biometry measurement results
are not stable with an ordinary biometry instrument.
y
This function is not a biometry instrument but an assisting function
for biometry.
1.4.3 A-scan diagnosis
y
This function is used to identify any affected part if observing A-
scan waves.
1.4 Outline of the operation