Olympus GF-UCT140-AL5

The GF-UCT140-AL5 serves endoscopy suites that perform endoscopic ultrasound of the upper digestive tract. The endoscopist steers the scope and reads the ultrasound picture, while the assisting team prepares the Aloka ProSound alpha 5 system, the display and the sampling needles for each examination.

A curved array scans a 180° arc beside the scope, so the tract wall and adjacent organs appear in one fan-shaped image. Four frequency steps from 5 to 10 MHz let the operator match the scan reach to the target depth, and Doppler modes add flow to the same image.

Sampling is the step that the large channel serves. The 3.7 mm bore takes aspiration needles larger than 22 G, and the needle travels down the channel while the array stays at the target. The operator scans, samples and withdraws in one insertion.

Units that keep one echoendoscope for both imaging and sampling use it as the working instrument of the examination. The array provides the image, the channel provides access, and the Aloka ProSound alpha 5 system provides the display, so the three parts of the routine stay together from the first image to the last sample.

The 100° video field of view guides the scope to each position, and the tip bends 130° up, 60° down, 30° right and 50° left to hold the array against the wall. The 1,250 mm working length reaches the upper digestive tract, and the optics look 50° fforward and oblique

Aspiration needles are the accessory the routine uses. Each sampling step uses a needle that suits the 3.7 mm channel.

A 3.7 mm channel for larger needles

The channel takes aspiration needles larger than 22 G. A department that samples under ultrasound control can therefore pass needles of that size through the same scope that forms the image.

A 180° curved scan

The curved array scans a 180° arc, placing the tract wall and adjacent organs in a single fan-shaped image. The operator reads a wide section of tissue from one position.

Four frequency steps from 5 to 10 MHz

The array works at 5, 6, 7.5, and 10 MHz, so the operator selects the frequency that suits the target depth. Lower steps reach deeper into the tissue, and higher steps show finer detail.

Doppler modes beside B-mode

B-mode and M-mode sit alongside Doppler, colour Doppler and power Doppler. The examination can move from the tissue picture to flow without a change of instrument.

Scanning and sampling in one insertion

The array scans the target and the needle passes down the 3.7 mm channel while the scope stays in place. The sequence from first image to sample therefore runs in a single insertion.

One ultrasound system for the routine

The scope works with the Aloka ProSound alpha 5 ultrasound system, so the team uses a single system from the first image to the last. That keeps the routine consistent from one examination to the next.

A 100° video field of view

Video optics give a 100° field of view in a 50° forward oblique direction. The operator guides the scope through the upper digestive tract using the video image before switching to the ultrasound image.

Four-way tip bending

The tip bends 130° up, 60° down, 30° right and 50° left. The operator can steer the array toward the target and hold it there during imaging.

A 1,250 mm working length

The 1,250 mm working length carries the tip into the upper digestive tract. The 12.6 mm insertion tube holds the 3.7 mm channel along that length.

Electronic curved linear array

An electronic array at the distal end forms the ultrasound image. Its curved face spreads the scan into a fan.

180° scan angle

The scan covers a 180° arc beside the scope. Each image is a cross-section through the tract wall and the structures next to it.

Four scan frequencies

The array offers 5, 6, 7.5 and 10 MHz. Each step suits a different target depth, from near the wall to the structures beyond it.

B-mode imaging

B-mode shows tissue as a cross-sectional picture, with brightness set by the strength of each echo. It is the base image on which flow is shown.

M-mode imaging

M-mode plots movement along a chosen line over time. It records motion across successive moments in one trace.

Doppler mode

Doppler mode shows flow as a time-based trace. It sits beside the B-mode picture during the same examination.

Colour Doppler and power Doppler

Colour Doppler overlays flow on the B-mode image, and power Doppler maps flow signal strengths. Both show where flow is present across the field.

100° video field of view

The video optics cover a 100° field of view. They provide the endoscopic picture used to guide the scope through the tract.

50° forward oblique direction

The optics look 50° off the scope's forward axis. The video picture follows that direction as the tip moves.

3 to 100 mm depth of field

The video picture stays in focus from 3 to 100 mm. The range spans objects near the tip and those further along the view.

12.6 mm insertion tube

The insertion tube measures 12.6 mm across. It houses the channel and the connections that run from the control section to the tip.

14.6 mm distal end

The distal end measures 14.6 mm. It carries the curved array, the video optics and the channel opening.

1,250 mm working length

The working length is 1,250 mm. It sets how far the tip travels into the upper digestive tract.

Four-way tip bending

Bending reaches 130° up, 60° down, 30° right and 50° left. Four directions of movement let the operator position the array against the tract wall.

3.7 mm instrument channel

A 3.7 mm channel runs from the control section to the tip. Aspiration needles pass through it during sampling.

Aloka ProSound alpha 5 compatibility

The scope works with the Aloka ProSound alpha 5 ultrasound system. The system displays the image from the curved array.

The GF-UCT140-AL5 suits an endoscopy department that performs endoscopic ultrasound of the upper digestive tract and ultrasound-guided sampling. The case for choosing it is the channel: a 3.7 mm bore means aspiration needles larger than 22 G travel through the same instrument that produces the 180° image, so scanning and sampling share one insertion. Teams that run the Aloka ProSound alpha 5 system add one more shared element to that routine, and the aspiration needle is the accessory the routine draws on. Four frequency steps and the Doppler modes complete the picture at the target. The channel measures 3.7 mm across.