
2.4 Nomenclature and Functions of Ultrasonic Endoscope Distal End
The distal end of the EG-580UR consists of the following parts.
Instrument Channel Outlet
Forceps or endotherapy device emerges from
this part.
This portion is also used as a suction inlet.
Air/Water Nozzle
This nozzle jets air or water onto the objective
lens with the air/water valve operation.
Transducer
This portion transmits and receives
ultrasonic waves.
Balloon Attachment Grooves
This portion is used to attach
the balloon ring.
Imaging Section (Inside)
Light Guide
The light from the light source is emitted from
these windows.
Objective Lens
This lens forms an endoscopic image on
the CCD.
Balloon Water Port
Water is discharged from this portion. Discharges
water from the balloon.
Chapter 2 Product Overview
36
202B1262871D
EG580UR_E2-50_202B1262871D.indb 36
2016/07/04 16:06:52