美国Gammex 1430 LE 多普勒模体

COMES IN EITHER 0.5 or 0.7 ATTENUATION (Please Specify)

GENERAL:

The 1430 LE is designed to provide a sonographer with advanced design features that allow for both Doppler ａnd B-Mode ultrasound system tests in one unit. This product consists of the flow system, phantom, ａnd electric flow controller meter.

The B-Mode Phantom component of the 1430 LE is based on our 404GS LE model that provides advanced technology for measuring image quality on small parts ａnd intracavity ultrasound scanning systems. With added grey scale targets this small parts phantom also measures contrast, temporal resolution ａnd system linearity. The phantom incorporates the Gammex Tissue Mimicking gel which provides a smoother background texture ａnd composite film scanning surface that has improved transmission properties.

Unique to the 404GS LE phantom are the closely spaced pin targets. By spacing them closer together, our targets are ideal for testing a range of high frequency transducers. Resolution patterns ａnd all vertical ａnd horizontal pins are made of 0.1 mm nylon fibers for better detail definition ａnd spatial resolution. Three grey scale targets of -6 dB, +6 dB ａnd +12 dB

relative to the background material are included. A series of anechoic cysts with diameters of 1, 2, 4 ａnd 7 mm permit easy evaluation of system noise ａnd distortion parameters.

Two 4 mm vessels are incorporated into the system to meet with FDA Doppler sensitivity recommendations. One vessel is parallel to the scan plan at 2 cm, ａnd the other vessel descends 35 degrees from the surface ａnd is used for measuring Doppler sensitivity ａnd for developing scanner techniques.

This self-contained system provides a broad range of available flow rates ａnd test objects. The enhanced microprocessor-based flow controller meter produces accurate flow rates from 1 to 17 ml/sec corresponding to 0 to 174 cm/sec measurable velocities with a 1% full scale (FS) accuracy.

The 1430 LE provides a realistic test medium for assessing:

• Maximum signal penetration

• Channel isolation of directional discrimination

• Registration accuracy of duplex sample gates ａnd similarities between B-Mode ａnd color flow images.

• Flow rate readout accuracy

The Gammex 1430 LE is an all-in-one portable system powered by a built-in LI/ion rechargeable battery. The universal charger is included with the system.

SPECIFICATIONS:

Tissue Mimicking Material

Speed of Sound . . 1540 ±10 m/s

Attenuation . . . . 0.5 or 0.7 ±0.05 dB/cm/MHz

Grey Scale Targets

Contrast . . . . . . . -6, +6, & +12 dB relative

to background

Diameter . . . . . . 7 mm

Speed of Sound . . 1540 ±10 m/s

Attenuation . . . . 0.5 or 0.7 ±0.05 dB/cm/MHz

Anechoic Cysts

Diameters . . . . . 1, 2, 4, ａnd 7 mm

Speed of Sound . . 1540 ±10 m/s

Attenuation . . . . 0.05 ±0.01 dB/cm/MHz

Blood Mimicking Fluid

Density . . . . . . . 1.03 g/cc

Speed of Sound . . 1550 ±10 m/sec

Scatter Size . . . . 4.7 micron average

Vessels

Size. . . . . . . . . . 4 mm inside diameter

Location . . . . . . horizontal 2 cm below surface; diagonal at 35 degrees from 1.5 cm below surface

Electronic Flow Control System

Measurable

Velocities . . . . . . 0-174 cm/sec

Pulsatile

Flow Mode . . . . . preprogrammed for

0.25-2 seconds/pulse

Pin Targets

Diameter of nylon lines . . . . . 0.1 mm (0.004 in)

Vertical Spacing. . 5 mm at 1 cm to 9 cm deep

Horizontal

Spacing . . . . . . . 10 mm at 1 cm ａnd 5 cm deep

Container Construction

Size. . . . . . . . . . 22.9x15.9x21.9 cm

(9x6.25x8.625 in)

Weight. . . . . . . . 4.4 kg (9.5 lbs)

AC Input Voltage.....110 vac - 240 vac

50-60Hz

Battery. . . . . . . LI-ion, rechargeable,

universal charger and

plugs included

All acoustic measurements at 4.5 MHz, 22° C

源自：深圳市湾边贸易有限公司