AV 3618
Portable Black and White Electronic Scanner
This device is suitable in hospitals and clinics for diagnosing
liver, GB, spleen, kidney, pancreas, heart, bladder, uterus.
Feature set
This device uses micro computer technology, Digital Scanning
Converter (DSC), variable aperture, multi-section dynamic focusing,
high dynamic low noise and wide band pre-amplifier, log compression,
TGC control, dynamic filtering, edge enhancement and frame
correlation. The embedded components allow a clear, stable and high
resolution image.
• Front End with 80 arrays, 20 channels
• Display modes: B, B+B, B+M, M; Gray scales: 256 levels.
• Real time scanning or picture freezing for analysis.
• Image amplification, black-white reversed, up/down conversed and
shift depth in Real Time.
• Soft-touching keyboard and track ball to make operation faster,
convenient and flexible.
• Video connector, outputting PAL-D standard, that can be easily
connected to large external monitor,
VCR or image printer.
• Portable structured with plastic cover. The use of switch power
supply, integrate circuits (FPGA) and Surface
Mounting Technology (SMT) makes this device portable with a small volume
and light weight.
• This device has passed clinical verifications of safety and
diagnosis validity.
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Technical
Specification
• Specification identical to Model AV-3618 with an additional port,
allowing connection of a second probe
• Standard probe : 3.5MHz Electronical convex (see below available
options)
• Scanning depth : 200mm
• Acoustic Power Mode M (C1-2/R60) :
- P- : 1.0498mpa
- Iob 1.316mw/cm2
- Ispta 2.63mw/cm2
• Lateral resolution : ≤ 3mm (depth≤ 80mm) or ≤ 4mm
(80mm < depth≤ 130mm)
• Axial resolution : ≤ 2mm (depth ≤ 80mm) or ≤ 3mm
(80mm < depth≤ 130mm)
• Dead zone : ≤ 5mm
• Geometric position precision (%) :
- Horizontal : ≤ 15
- Vertical : ≤ 10
• Monitor screen : 10" non interlaced, pseudo color
processor (see below available options)
• Display mode : B, B+B, B+M, M
• Image gray scale : 256 levels
• Electronical focusing : 4 focus combinations
• Image magnification : ×1.0, ×1.2, ×1.5, ×2.0
• Zoom : ×2
• Cine-loop : 186 or 236 frames included as standard
• Permanent Image storage : 32 frames
• Pseudo color unit : Included.
• Image reverse : Left/Right, Up/Down, Black/White
• Depth shift : B, B+B modes real time shift
• Frame correlation : B, B+B modes 3 levels
• Measurement functions :
- B mode: Distance, circumference, area, heart rate,
pregnant, Week, fetal weight, EDD
- M mode: Heart rate, time, EF
• Charactere input/display : date, patient’s ID, age, sex
• Body marks : 10 types
• Power consumption : 70VA
• Dimensions (L×W×H): 353mm × 315mm × 253mm |
Standard
compliance
This device is designed and manufactured by strictly complying with
the following standards :
• National standard GB10152-1997 “B Mode Ultrasound Diagnosis
Equipment”
• National standard GB9706.1-1995 “Medical
Electronical Equipment Part I: General Safety
Requirement”
• Band C, Type B Diagnosis equipment
• Class I, Type B Electronical shock protection
• Climate environment test group II
• Mechanical environment test group II of GB/T 14710-
93 “Environment Requirement and Test Method for
Medical Electronical Equipment”
Environment requirements
• Temperature : +5°C~+40°C
• Humidity : <80%
• Atmospheric pressure : 70kpa~106kpa
• Power supply : AC/DC Adapter/Charger 110/220V AC
±11/±22V 50/60Hz, Output: DC 10-12V
Mode B Scanner principle
Human organs are different in their densities and ultrasound speed,
i.e. they have a different acoustic impedance. The piezoelectricity
crystal (transducer) is excited by the electrical pulse to produce
an ultrasound wave of definite frequency. This ultrasound wave is
transmitted into the human body. The echo wave is made when the
ultrasound wave passes through the surface of different organs.
Echoes with different amplitudes are received via the same
transmitting transducer. Received echoes (acoustic energy) are
converted into electrical pulses which are amplified, demodulated
and DSC, etc. A standard video signal is generated allowing the
organ section image to be displayed on a monitor screen.
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